213 Senior Software Engineer Genai Team jobs in London

We are a fast-growing, FinTech company looking for a talented and enthusiastic Senior Software Engineer to join our team. We are expanding, making this a perfect position if you would like to have a significant impact on our company’s growth and develop your role and career as the business evolves. You will join a team where your ideas will be welcomed and valued, and who believe in doing high quality engineering.

We are about to undertake a large project to rebuild our entire platform, so this is exciting time to join to have real impact on the tech for years to come. We are looking for someone to take responsibility for designing and building large parts of our platform.

The role involves all aspects of the development lifecycle from design, implementation, and deployment. You need to be flexible and innovative and be able to handle large scale engineering challenges.

Role Responsibilities

• As a Senior Engineer, you will be responsible for enhancing and rebuilding the core onboarding platform, using your extensive experience of designing and engineering modern software applications following a microservices architecture.
• Champion code quality and thoughtful software design; it's essential to have a deep commitment to the quality of the code and software produced by you and the team.
• You will work with all stakeholders to analyse requirements to guide software architecture.
• Implement continuous integration and delivery to limit manual testing and troubleshooting.
• Ensure the DevOps concepts are used to deliver resilient, scalable and secure software.
• To produce accurate technical and non-technical documentation.
• You will coach and mentor more junior members of the team and work to build stronger coding and architectural disciplines in the team.

Our Tech Stack

We are in a process of evolving our tech stack, so this is not a definitive list, but a rough outline if what we currently have and what we want to adopt more.

• Our services are written in C#, live in GitHub, and deployed to Azure.
• We use Kubernetes and Helm charts for deployment with Terraform.
• Our frontend is built using a combination of Blazor for legacy applications, and Vue.js with TypeScript for new applications.
• We use Azure SQL for our relational data.
• Our architecture is - where appropriate - event-driven with Kafka.
• We perform integration testing with Cypress and Playwright.
• We monitor our systems using AppInsights, Grafana, and Zenduty.
• We ensure code quality with static code analysis using SonarCloud.

Requirements

We recognise that it's unlikely for anyone to possess every skill listed here. What's important is having as many as possible and a strong desire to learn the rest.

• Strong knowledge of C#, including object-oriented programming and SOLID design principles.
• Experience in VueJS with Typescript or similar frontend technology like React.
• MS SQL, T-SQL
• Experience designing event driven architecture with services such as Kafka.
• Experience with Azure Cloud Services, Kubernetes, and designing and developing continuous integration build, test and deployment environments using modern cloud-based tools and techniques.
• Experience with test-driven development.
• Experience working in Agile or Scrum teams, with an understanding of sprint planning, story points, and iterative development.
• Ability to take a pragmatic approach to coding and system design. Be able to choose solutions that balance quality and simplicity over perfectionism.
• Must be confident, self-motivated and able to methodically solve problems.
• Be used to working in a challenging and demanding environment where priorities can change at short notice.
• Possess very good verbal and written communication skills.

Benefits

• 25 days holiday (exc. Bank holidays)
• 5% Pension contributions
• Private medical insurance with Vitality
• Health cash Plan offering contributions to dental, optical and much more
• Enhanced Parental Leave
• Cycle to Work Scheme
• Monthly team lunches, quarterly company socials

We recognise the value of in person collaboration and operate a hybrid working model from our London office. Our teams work onsite 3 days a week (Tuesday to Thursday) and remotely for 2 days, providing flexibility alongside the benefits of working together. 

We use foundational models to create synthetic populations that represent real populations with 92% accuracy. Leading brands use these digital twins to test strategies, understand audiences, and make decisions in days rather than months - without the cost and delays of traditional market research.

Our platform spans 155 countries and 2 million synthetic personas. When a brand needs to understand how their target audience will respond to a new campaign, they get answers in seconds instead of weeks. Million-pound decisions are based on our results.

We've seen firsthand how crucial good insights are in high-pressure situations - our team has experience across campaigns, crisis response, and strategic operations where decisions have real consequences. Electric Twin is the tool we wish we'd had. That's why we built it.

You'll work across the full stack - from optimizing LLM inference pipelines to building B2B SaaS products. We value engineers who can take ownership of complex problems and collaborate effectively with world-class data scientists and domain experts.

Your responsibilities:

• Build Production Systems: Develop and maintain our Python-based platform that powers synthetic population simulations, working with PostgreSQL databases and deploying on Google Cloud Platform
• Deliver Client Impact: Create TypeScript/JavaScript B2B SaaS products that solve real business problems for major brands, working directly with product and commercial teams
• Ensure System Reliability: Implement monitoring, testing, and GitHub Actions CI/CD pipelines to maintain high availability for systems that influence million-pound business decisions
• Collaborate Across Disciplines: Partner closely with our data science team to translate research innovations into robust, scalable production systems
• Drive Technical Excellence: Contribute to engineering standards and systematic approaches as we scale our platform and grow the team
• Solve Diverse Challenges: Work across different technical domains - from optimizing data processing pipelines to building intuitive B2B SaaS experiences to ensuring system performance under high load

Environment:

• Small, focused team with direct access to leadership and clients
• Office-based culture (4-5 days per week) with frequent cross-team collaboration
• Results-driven environment where good engineering enables rapid business impact
• Opportunity to work with innovative brands and see the immediate impact of your work

This role suits engineers who thrive on variety and impact. If you prefer narrow specialization or lengthy planning cycles, this might not be the right fit. But if you want to solve challenging problems with immediate business consequences, let's talk.

Requirements

The engineering challenge is building systems reliable enough to power these high-stakes decisions. You'll work across data pipelines processing billions of tokens, real-time simulation platforms, and B2B SaaS products that make complex AI feel intuitive.

Essential:

• Strong software engineering fundamentals with experience in modern programming languages
• Proven track record of shipping production software and taking ownership of systems end-to-end
• Experience working collaboratively in cross-functional teams with diverse technical backgrounds
• Strong problem-solving skills with the ability to debug and optimize systems across different domains
• Excellent communication skills and genuine interest in understanding client and business needs
• Comfortable working in dynamic environments where business priorities drive technical decisions
• Willingness to work with our tech stack: Python (server-side), TypeScript/JavaScript (client-side), PostgreSQL, GitHub, and Google Cloud Platform

Desirable:

• Experience with Python, TypeScript/JavaScript, PostgreSQL, or Google Cloud Platform
• Background in building scalable systems, APIs, and data-intensive applications
• Familiarity with AI/ML systems, large language models, or high-throughput data processing
• Experience with GitHub Actions, CI/CD pipelines, monitoring, and observability
• Interest in market research, behavioral science, or business applications of AI

Benefits

• Competitive salary and equity package
• Opportunity to work on technology that influences major business and policy decisions
• Rapid professional growth in a scaling company with exceptional leadership
• Direct exposure to diverse industries and high-stakes decision-making
• Comprehensive benefits including health insurance, pension and holiday

INSTANDA is the worlds first no code platform for Insurance. A pioneering Insurtech, we’re revolutionising the insurance industry by offering insurers a versatile tool to create, manage, and distribute digital insurance products. Our innovative technology empowers insurance carriers to adapt swiftly to market demands and navigate the evolving landscape. Our Technology is consistently recognised as the best policy administration platform for innovative insurers, winning awards in both the UK and US.

INSTANDA has grown significantly in recent years and we are now a team of 200+ employees globally, with partnerships that operate worldwide. We’re continuing to grow our business and our DevOps team is at the forefront of our growth plans.

Follow us to learn more: Instanda.com  | LinkedIn  | Twitter  | YouTube

ABOUT THE TEAM

The Engineering Department is responsible for designing, developing, and testing the INSTANDA platform. All our applications are designed and developed in-house and hosted on Microsoft Azure.

INSTANDA is an innovative platform, where our engineers collaborate, develop, and test new features, using the latest technologies. The majority of our developers are full-stack, with some specialising in UI and databases. If performance or security are your thing you will a find a place for them here too!

ABOUT THE ROLE:

Reporting to a Dev Lead, we are looking to hire an experienced smart and technically savvy Software Engineer to join our growing Software Engineering team with a passion for software development and building great products to work on our platform. You will be working as part of an agile team, building an industry changing SaaS platform using the latest technologies.

This role is UK based, primarily remote working with some travel required to our London Office.

We are unable to provide sponsorship for this role.

What you will do:

• Develop and unit test software to a high standard.
• Collaborate with the wider development team to deliver customer solutions.
• Develop new features for our platform.
• Improve existing functionality.
• Consistently advocating high quality of code.

Requirements

Essential:

Technical Skills:

• C# .NET
• ASP .NET MVC
• LINQ and Entity Framework/LINQ to SQL
• Web-based languages such as HTML, CSS and JavaScript
• SQL Server
• Web APIs, e.g. REST
• Source control management, e.g. Git/ Azure/ Azure DevOps
• Unit tests, e.g. XUnit
• OOP ad SOLID principles

Behavioural Skills:

• Proactive self-starter, who can work with minimal supervision
• Excellent problem-solving skills
• Strong written and verbal communication skills
• Ability to multi-task and handle competing deadlines in a fast-paced dynamic environment.

Desirable:

• Familiarity with OWASP would be advantageous

Benefits

• Competitive salary
• Generous 28 days holiday allowance, in addition to public holidays.
• For every year of service you complete, we’ll give you an additional days holiday (max. 5 days)
• One Dynamic Day per month on top of your holiday allowance to spend time doing the things you want to do or simply catching up with life admin.
• Freedom Pass work up to 4 weeks of the year from anywhere.
• FlexiBank you decide when to use your public holiday allocation.
• Hybrid Working approach varying with the nature of your role.
• Life cover; income protection and participation in the company pension scheme
• All employees are included in the company discretionary bonus scheme
• £100 per month to put towards wellness activities.
• Annual learning & development allowance of £1,250
• Free access to LinkedIn learning and Microsoft ESI learning platform

Additional Information:

Our company was built by looking at the world through a different lens and our culture today reflects that by encouraging you to be yourself, speak your mind, and share your opinions. We want people who want to push themselves, be part of something great, and be prepared to challenge if they think there is a better way. Collaboration sits at the heart of how we operate, it has fueled our growth enormously and our aim to be ‘world class.

We want everyone to be the best they can be throughout our recruitment process; if you require any additional adjustments please let us know. Visit instanda.com/careers for more information

INSTANDA has an in-house recruitment team, which focuses on sourcing great candidates directly.  INSTANDA does not accept unsolicited resumes from agency or search firm recruiters.  Fees will not be paid in the event a candidate submitted by a recruiter without an agreement in place is hired.  When we do use agencies, we have a PSL in place, so please do not contact managers directly.

About Polaron

Polaron is a spin-out from Imperial College London, founded by Isaac Squires, Dr. Steve Kench, and Dr. Sam Cooper. The founders were united by their desire to harness engineering, artificial intelligence, and materials science to build the materials of the future.

Our mission is to become the world leaders at the interface between AI and materials. Through relentless dedication to innovation and pragmatism, we aim to support the next generation of advanced materials critical to building a more sustainable future.

Role Overview

You’ll be joining a team of four (CEO, CTO, Chief Scientist and Head of Engineering) as the first software engineer. This role grants you a significant degree of autonomy, and influence over the development and direction of the platform and product.

We’re building a SaaS product that will allow materials engineers to leverage cutting-edge AI in their work. Some of the things on our roadmap you’ll work on include:

• Building a robust cloud platform for scheduling the training and serving of bespoke AI models for our customers.
• A rich web-based image manipulation application for pre-processing image data that is used to train machine learning models.

Location

This is primarily an in-person role, with the team currently working from our East London office (a short walk from Old Street and Hoxton Overground) at least four days a week. At this early stage of the company’s development we currently favour collaboration in person, but we can discuss your preferences for working location as part of an application.

Our Commitment to Diversity

At Polaron, we are dedicated to building a diverse and inclusive team. We encourage you to apply, regardless of your past experience or background.

Technologies We Use

• Frontend/Backend: TypeScript with React/Next.js and Express/Prisma.
• Machine Learning: Python.
• Infrastructure: Docker, Kubernetes, Terraform (AWS).
• Database: PostgreSQL.
• CI/CD: Github, Github Actions.

Interview Process

Our interview process typically consists of the following stages:

1. Initial Video Call (20 mins): Discuss your experience and interest in the role with a member of the team.
2. Technical Pairing Exercise (1 hr): Collaborative coding session via video call, This is a chance to see how we work on an engineering problem together.
3. Behavioral Interview (45 mins):  In-person discussion with two team members in our office.
4. Paid Trial Day: This is a chance to spend the day in our office collaborating with the team on a real engineering task.

For any inquiries or requests for reasonable adjustments during the application process, please contact us at

Requirements

You should apply if

• You have 3+ years experience working as a product-focussed software engineer.
• Experience writing well-tested, maintainable code with a statically typed programming language (TypeScript, Go, Java/Scala, etc).
• A product-oriented mindset, comfortable engaging with customers, defining products, and owning feature delivery from start to finish.
• Comfortable working across the technology stack.

Benefits

The salary range for this position is £60,000-£75,000 GBP, and 0.1-0.5% equity, depending on experience and negotiated terms.

Who we are

Boba Commodities are a successful, rapidly growing commodities trading firm with the wider purpose of investing into a better future for us all.

Our vision

To invest our trading profits into community enhancing businesses across the globe that share our values.

Our mission

Through our trading strategies, maximise the opportunity in the commodities and other markets to help us realise our vision.

We believe

Social value and long-term profit are inextricably linked. We carry this philosophy through to the role we play in the commodities markets. As part of this belief, we have ensured we are a carbon negative company, meaning we seek to double offset our carbon footprint, backdated from our inception as a company.

Where we are in our journey

From being founded in 2013, we have grown significantly over the past 10 years. We are now looking to scale our technology infrastructure and levels of automation of our trading processes. To add to the Engineering team, we are looking for a future orientated hands-on Senior Software Engineer who has a passion for engineering, strong attention to detail and excellent communication to help support us and make our vision a reality.

Our values

We believe in 80/20, the pursuit of non-perfectionism : We ensure we are always focused on the most impactful drivers and results and its value over time. We move fast and get things done.

Adapt & Evolve : We are agile and growth oriented. We won’t get everything right first time, but we are open-minded to learning from mistakes and failures. We adapt and evolve whenever needed.

Best Ideas Rise To The Top : We champion the best ideas, not our own ideas. We ensure we listen to other ideas, regardless of the source and embrace cognitive diversity and creating a psychologically safe environment where every voice is heard.

Care Personally : We care about each other at a personal level as well as ourselves. The more we understand each other, the more effective we will be.

These core values are intrinsic in our culture and in everything we do.

What are you going to do?

As part of the Engineering team you will be delivering the technology vision and contributing to a high performing, ‘well-oiled’ Engineering team. Specific examples of your responsibilities are:

• Work closely with the Trading and Finance teams to shape and make the technology vision a reality and be a force multiplier for our Engineering objectives and strategy.
• Contributing to the development process through writing & reviewing code, designing and implementing solutions, innovating, resolving technical challenges and solving business problems with technology solutions.
• Build high value technology solutions for trading teams and automation of manual processes through technology.
• Own and develop highly effective software development/SDLC processes and practices to reduce lead time to delivery and increase technical excellence.
• Learn fast - in both technical skills and competencies for high performance and innovation.
• Hold self and team accountable for meeting or exceeding the technology objectives.
• Solve complex problems in a logical and pragmatic way.

Requirements

We need someone who must have the following…

- Experience developing software in SQL and Python, and ideally on cloud infrastructure.

- Strong skills/experience in:

• Coding in Python & SQL
• Working with Relational Databases
• Experience of using AWS services, including but not limited to EC2, Lambda, Aurora, S3
• Familiarisation with containerization technologies e.g., Amazon Elastic Container Service (ECS) together with AWS Fargate and orchestration tools e.g., Kubernetes
• Current data paradigms e.g. stream processing (using Apache Kafka/Kinesis and Apache Flink), real-time architectures to enable downstream use-cases such as alerting and reporting
• Familiarisation of AWS security best practices, Identity and access management (IAM), encryption, and network security configurations to ensure a secure cloud environment.
• Understanding of AWS networking concepts, including VPCs, subnets, security groups, NAT gateways, VPNs, and direct connect to design and implement scalable and fault-tolerant network architectures
• Managing data engineering pipelines through Apache Airflow
• Familiarisation with CI/CD pipelines and other automation processes in AWS Code Pipeline
• Knowledge and experience with Git (branching strategies and repo management)
• Monitoring tools like AWS CloudWatch to proactively identify issues and troubleshoot system performance
• Infrastructure as Code tools such as Terraform to automate and manage infrastructure deployments
• AWS backup and disaster recovery solutions, such as AWS Backup and Amazon S3 versioning, to ensure data protection and business continuity
• Familiarisation with practices like Behaviour Driven Development (BDD), Test Driven Development (TDD) and Continuous Performance Testing using open-source toolsets.

- Have a passion for building pragmatic technology solutions that focus on delivering the most value over time.

- Have a deep understanding of working methods such as Agile, Kanban, Scrum, DevOps and CI/CD tools and best practices and successful experience in embedding them in teams.

It would be even better, but not essential, if you have one or more of…

• Have strong hands-on experience in designing and building low-latency trading or comparable infrastructures and related operational/trading processes.
• Have hands-on experience in building rules based automation or machine learning technology solutions for trading e.g. automation of trading strategies or other intellectual property.
• Experience in designing and implementing RESTful APIs for accessing AWS Aurora to source data for the analytics
• Experience of Microsoft Power Bl /Tableau or other data visualization program to create effective dashboards and reports

You will thrive in the role if you have the following…

• Work without ego, putting the team's needs ahead of your own
• Strong self-management such as self-awareness, adaptability, positivity, self-motivation, holding yourself and team to high standards.
• Positive reaction to failure, calm and comfortable in chaos and under pressure while retaining importantly strong ethical standards.
• Personal commitment to excellence; to self-development, personal growth, expanding your comfort zone; strong attention to detail, ability and hunger to learn quickly; all of which is balanced with a strong sense of pragmatism.
• Strong logical reasoning/critical thinking with an ability to make decisions, take a methodical approach, identify patterns to form conclusions and solve problems and ability to hold conflicting views in parallel.
• Excellent written and verbal communication skills, with an ability to liaise with co-workers at all levels of the business. Specifically skilled at presenting complex information in concise and clear ways, applying the appropriate sense of urgency when required.
• Strong team orientation, working collaboratively with high levels of self-motivation and caring personally for the team and co-workers.
• Holds self accountable for their work, ensuring it is completed accurately and on time; communicates delivery timelines for work clearly to stakeholders.
• Understands the difference between urgent and important, and the situational differences in approach to delivery or problem solving.
• Effective active listener. Holds space for other’s ideas, avoids listening purely to respond; listens without ego getting in the way.
• Excellent organisational and time keeping skills.
• Able to clearly establish priorities but remain adaptable in a constantly changing environment.

Examples of success in this role include the following…

• Learning and upskilling quickly - both technically and in ways of working.
• Contributing to the Engineering team as a ‘well-oiled machine’.
• Delivering and embedding effective testing automation toolsets and practices.
• Strong working relationship with team members and stakeholders, acting as a trusted force multiplier for the technology vision.
• Effectively collaborating across departments.
• Increase innovation rates and deliver on product development.
• Minimise technology debt and technology maintenance work through best engineering practices.
• Build strong trust and psychological safety within Engineering team and be a culture carrier for the broader company.
• Own and deliver improvements on Engineering KPIs

Personal Fit

Our values run deep. You can come from any background, but championing our culture is critical. We’re looking for a team member who:

• Shares our vision and embodies the Boba culture as a role model.
• Is looking for an organisation that puts its purpose at the heart of what it does.
• Is hungry to help build the company - a proactive and enthusiastic force to improve our capabilities.
• Loves coding and loves putting technology to use in a pragmatic way.
• Has their finger on the pulse of latest information, ideas, and practices, and can transform these into tangible value for our team.
• Leads by first deeply understanding a problem and then leveraging their experience to work with the teams to find solutions
• Has a keen interest and understanding in the wider technical landscape, regardless of our current tech stack; is intellectually curious.

Application and Interview Process

We are small but growing fast and we need the right people who can help us grow and retain and embed our culture and values. Our selection process is both rigorous and compassionate, but we highly encourage you to approach the journey as your authentic self. You are deciding about whether this role is for you as much as we are, so if we are a natural fit for you and you find yourself enjoying this process then you will likely thrive working at Boba. Below is an outline of what you can expect from the process, but this may change or evolve.

How To Apply

If you apply directly, please include your CV and a cover letter. Whilst your CV can cover what you have experienced, achieved, and accomplished, we really encourage you to take the opportunity to describe your personal 'why' and 'how' in your cover letter to tell us more about you as a person. e.g., Why you are interested in the role with us, and how you work with people or projects or problems, what do our purpose and values mean to you.

If you are applying through one of our recruitment partners, please share this information with them so they can brief us about you. We want to know who you are as a person and not just what you have done in the past. Applicants we think could be a good fit will be invited to Round 1 which will be done in two parts:

Round 1 – Part 1 of 2: Video Assessment

Our first stage allows us to see and hear how you communicate and allows you the opportunity to tell us a bit more about yourself than a CV or cover letter can do. Just relax and be yourself. We may throw a curveball question to you which is just to give us an idea of how you might approach a situation or scenario. We highly value cognitive diversity, so this has no right or wrong answers; please answer as your authentic self.

Round 1 - Part 2 of 2: Online Assessment

As this is an Engineering role, we will ask you to complete an online technical assessment exercise. This has been calibrated by our own teams taking this assessment to ensure it represents the strengths that a person will need to have to thrive in the role. It allows us to understand your strengths and most importantly removes a large part of the subjectivity that can enter the first stage of candidate selection and provides a consistent and level starting point for all applicants. It also significantly reduces the risk of unconscious bias at the application stage, so we can ensure each applicant has the same starting point and we can find the best talent.

The purpose of the online technical assessment is for us to learn how you solve technical coding problems in as close to a real life environment as possible.

Round 2: Getting to know each other

Approx. 2hrs with breaks. We would love to host you at our office and meet you in person, and we will pay any associated travel costs. Typical format will be:

• Meet with our Lead and Senior Trading Engineers  (Amritha & Gary) who will assign you a technical assessment exercise for about 45mins followed by a break.
• After this, one of your potential future team members will take you for a coffee/tea/beverage for an informal chat with you for up to 15mins for you to ask any questions about the role, Boba or anything else!
• Meet with our Associate Chief of Staff (Catherine) for up to 60mins

We will typically be in touch within a week on next steps after this stage.

Round 3: Final Round

Approx. 2 hours with breaks. This will be in-person in our office again, and we will pay any associated travel costs. We tollgate this stage, meaning we will make a decision on the day to proceed with the next interviewer. The structure will likely be:

•    Meet with our Chief of Staff/Chief People and Culture Officer (Iain) for up to 45mins inc. any questions you may have.

If Iain and you both wish to continue, then:

•    Meet with our COO (Marc) for up to 30mins inc. any questions you may have.

If Marc and you both wish to continue, then:

•    Meet with our CEO (Samir) for up to 30mins inc. any questions you may have.

If you have any questions about the process along the way, just ask us at

Good luck and we look forward to meeting you!

Benefits

What we can offer you

We are growing and adding to how we want to make Boba the best place to work on the planet and are always listening to what our team think we can do to achieve that. On top of a culture of personal growth, caring personally, inclusivity where your ideas are heard and often implemented, we can offer:

• £40,000 annual salary plus annual discretionary performance bonus
• Support from a professionally qualified Coach to help you achieve your personal and professional goals
• Work/life balance. We mainly trade in US markets, and as a result need to ensure we have Engineering available to support the Trading team. However, outside of having appropriate coverage in place, we work hard to stick to an average 8 hour day and you will have a large amount of autonomy over your work. We value output and engagement and we do not like presenteeism, we know that everyone has a life outside of work
• Comprehensive health care cover, including mental health, dental and optical cover, with zero excess for the employee (and tax is paid by us!) via Aviva
• Life Insurance and Income Protection via YuLife
• Physical health allowance where we provide an allowance to each employee to use towards a physical activity of their choice (e.g., gym membership, Brazilian ju-jitsu, personal trainer, running club; pretty much anything as long as it gets you moving!)
• 39 days holiday, to be taken whenever you want subject to ensuring we have operational and trading coverage. We do not mandate you work public holidays nor do we mandate you must take them off, instead we recognise that UK bank holidays do not always align to important dates for everyone so give our employees the choice
• Up to £1K a year to support one personal amazing growth goal. Our only guidelines are that it cannot be incongruent to our purpose or values, and it must push you out of your comfort zone
• Pension contribution
• A book a month for personal development
• A gift on your birthday.
• Support to pursue professional certifications/qualifications
• Boba Day – an optional annual away day for socialising and training together
• ‘Bobaversary’ recognition for reaching significant milestones in your career with us

Other examples of situational/ad-hoc schemes we have run for our employees:

• Surprise and delight – we sent our people gifts from us during mandatory WFH periods, just to show we are thinking about them
• Social events & celebratory gifts for achieving team goals
• Fridge full of snacks and drinks (healthy and less-healthy options are available!)

ROLE DETAILS

SBU - Invent

CU - Business Technology 

Global Grade - B 

At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting-edge solutions. Join us to drive transformation tailored to our client's challenges of today and tomorrow. Informed and validated by science and data. Superpowered by creativity and design. All underpinned by technology created with purpose.

YOUR ROLE

Join our team as a key player in building cutting-edge GenAI full-stack applications. In this role, you will:

• Collaborate with the team to develop GenAI proof-of-concepts (POCs) for clients using technologies like Retrieval-Augmented Generation (RAG) and intelligent agents.
• Scale existing POCs to production-ready solutions for customer use.
• Design and develop FullStack applications for both GenAI and non-GenAI projects.
• Support the development of infrastructure to enable robust end-to-end solutions.
• Grow your skills by exploring and experimenting with emerging technologies, including GenAI.
• Share your expertise by coaching and mentoring team members, fostering skill development within the team.

Additional Opportunities

This role offers avenues for both personal and business growth through contributions in the following areas:

Business Development

• Lead or contribute to proposals, RFPs, bids, and client pitches.
• Develop innovative propositions and participate in client-hosting events.

Internal Initiatives

• Engage in campaign development, internal think tanks, and whitepapers.
• Contribute to practice operations, recruitment, and team-building activities.
• Help shape the organization’s offerings and capabilities.

Learning and Development

• Access training and certifications to enhance your career and align with company needs.
• Stay at the forefront of technological advancements by upskilling in high-demand areas like GenAI.

Become part of a dynamic environment where innovation, collaboration, and growth are central to everything we do.

YOUR PROFILE

To be considered for this position you must meet below requirements:

Eligibility

• You need to hold an active SC (Security Check) Clearance or be eligible for such level of clearance.

Technical Expertise

• Backend Development : Experience in building microservices using either Python with FastAPI , or TypeScript with Express or equivalent
• Frontend Development : Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite .
• GenAI Frameworks : Familiarity with tools like LangChain , LangGraph , CrewAI , or Vercel AI (in Python or JavaScript).
• LLM experience : Practical experience with Large Language Models (LLMs) such as OpenAI , Anthropic , Mistral , or Llama , and tools like Ollama .
• Cloud Platforms : Proficiency in AWS or Azure for hosting and deployment.
• Containerization and Orchestration : Hands-on experience with Docker , Kubernetes , and Docker Compose .
• Infrastructure as Code (IaC) : Exposure to tools like Terraform .
• Monitoring Tools : Familiarity with LLM monitoring tools like Langsmith , Langfuse , or similar.
• CI/CD : Experience with continuous integration and deployment tools such as GitLab , GitHub , or Jenkins .

Database Management

• Vector Databases: Experience with and (but not limited to) ChromaDB, Pinecone, PGVector, MongoDB , Qdrant etc.
• NoSQL: Familiarity with NoSQL databases (e.g., MongoDB preferred).
• SQL: Experience working with SQL databases like PostgreSQL.

Version Control

• Proficient in Git and version control platforms like GitHub, GitLab, etc.

Work Methodology

• Experience working in an agile team environment.

Communication Skills

• Ability to effectively communicate with internal and external stakeholders, adapting your approach based on the audience and context.

WHAT YOU'LL LOVE ABOUT WORKING HERE:

We are delighted to have received the “Glassdoor Best Places to work UK’ accolade for 4 consecutive years . To see what it’s like to work at Capgemini Invent, visit our Glassdoor page . Capgemini Invent offers engineers a culture of learning, ownership, and focus on value.

Culture and Growth

Capgemini Invent fosters a culture of learning, ownership, and delivering value. You’ll work on high-profile transformations, gaining hands-on experience with leading-edge technologies. Comprehensive Training and Certifications : Our consultants receive formal training from industry experts in consulting and client delivery. You’ll have access to a wide array of training programs and certifications in areas such as:
 

• Cloud Technologies: AWS, Azure, GCP
• Programming: Java, Kotlin, Node.js, Spring Boot
• DevOps: Terraform, Kubernetes, Docker
• Cybersecurity: CISSP, CISM
• Agile Delivery: Scrum Master, Product Owner, Scaled Agile Framework
   

This flexibility allows you to build expertise in domains that align with your interests and our clients’ needs.

Unique Learning Environment

Les Fontaines : Just outside Paris, our unique training facility offers an immersive environment for thought leadership, skill-building, and collaboration, enabling us and our clients to succeed.

Community and Connection

Digital Transformation Showcases : Monthly events where we share our innovations and demonstrate the transformative power of technology for our clients.

Social events

• Monthly Team Drinks: A chance to connect with the wider team in a relaxed city setting.
• Team Breakfasts: Enjoy informal office meetups to hear from leadership, discuss market trends, and catch up with colleagues.
• Team Away Days: Engage with teammates, have fun, and learn something new.
   

Capgemini Invent offers a vibrant, inclusive, and rewarding environment where your career can thrive, and your contributions truly make an impact.

NEED TO KNOW

At Capgemini we don’t just believe in inclusion, we actively go out to making it a working reality. Driven by our core values and Inclusive Futures for All campaign, we build environments where you can bring you whole self to work.

We aim to build an environment where employees can enjoy a positive work-life balance. We embed hybrid working in all that we do and make flexible working arrangements the day-to-day reality for our people. All UK employees are eligible to request flexible working arrangements.

Employee wellbeing is vitally important to us as an organisation. We see a healthy and happy workforce a critical component for us to achieve our organisational ambitions. To help support wellbeing we have trained ‘Mental Health Champions’ across each of our business areas. We have also invested in wellbeing apps such as Thrive and Peppy.
 

CSR

We’re also focused on using tech to have a positive social impact. So, we’re working to reduce our own carbon footprint and improve everyone’s access to a digital world. It’s something we’re really serious about. In fact, we were even named as one of the world’s most ethical companies by the Ethisphere Institute for the 10th year . When you join Capgemini, you’ll join a team that does the right thing.

Whilst you will have London , Manchester or Glasgow as an office base location, you must be fully flexible in terms of assignment location, as these roles may involve periods of time away from home at short notice.
 
We offer a remuneration package which includes flexible benefits options for you to choose to suit your own personal circumstances and a variable element dependent grade and on company and personal performance.
 
In order to commence a role with Capgemini UK plc you will be required to provide documentary proof prior to joining the Company that you are entitled to live and work in the UK.
 

ABOUT CAPGEMINI

Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world, while creating tangible impact for enterprises and society. It is a responsible and diverse group of 340,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, cloud and data, combined with its deep industry expertise and partner ecosystem. The Group reported 2023 global revenues of €22.5 billion.

Job Title: Senior Software Engineer
Reporting to: Lead Engineer

Role Purpose:

As a Senior Software Engineer, you will enhance and support both new and existing products within the Software Engineering group. In addition to contributing to feature development, you will play a role in shaping the technology and process strategies, and occasionally lead innovation or software design initiatives.

Key Responsibilities:

• Develop new features with a strong focus on high-quality code.
• Conduct peer code reviews to ensure quality and adherence to best practices.
• Participate in daily stand-ups, change analysis sessions, and technical presentations.
• Provide guidance on tool and environment adoption where necessary.
• Continuously develop knowledge of the business domain and gain a deeper understanding of the organization's objectives.
• Work closely with tech leads, engineers, testers, and other personnel to deliver high-quality products.
• Take ownership of initiatives related to innovation or addressing technical debt.
• Design, document, and communicate system solutions with a balanced focus on time, quality, cost, and performance.
• Collaborate with colleagues across the organization to gain buy-in and feedback on proposals and designs.

Required Knowledge & Experience:

Essential:

• Strong proficiency in C# at a commercial level.
• Solid experience with .NET Core and related open-source technologies.
• Knowledge of Object Orientation, SOA, and relevant design patterns.
• Experience with modern software development practices, including agile methodologies , version control, code reviews, and continuous integration.
• Understanding of concurrency, asynchrony, and parallelism.
• Experience with Test Driven Development (TDD), unit testing frameworks, mocking frameworks, and patterns for testability.
• Proficiency in relational database concepts, Microsoft SQL Server , and SQL .
• Familiarity with front-end technologies such as HTML , CSS , and JavaScript .
• Experience in Web API design and implementation.

Desirable:

• Commercial experience with Typescript .
• Experience with containerization (e.g., Docker ) and container orchestration (e.g., Kubernetes ).
• Experience in SPAs and responsive web development, particularly with Angular .
• Familiarity with enterprise messaging systems (e.g., NServiceBus , Azure Service Bus )