145 Workday Enterprise Systems Developer jobs in Greater London

We're looking for a Senior-level Software Engineer with strong JavaScript/TypeScript skills and experience across modern web stacks. You'll be instrumental in our transition away from Drupal as we modernise and scale our platform.

Tech Stack:

• Strong experience with JavaScript and TypeScript
• Good experience with Laravel and/or Python (Django or Flask a plus)
• Familiarity with Drupal and some knowledge of modern front-end frameworks (React, Vue, etc.)

What You'll Do:

• Build scalable applications using modern frameworks and clean architecture
• Contribute to backend services and APIs (Python or Laravel-based)
• Help re-platform and migrate from Drupal to a modern stack
• Collaborate cross-functionally with UX, Product, and DevOps

What We Offer:

• A supportive environment that encourages professional growth and continuous learning.
• An inclusive, collaborative culture within one of the UK's leading business services providers.
• A competitive salary and benefits package.

INDLON

49904MS

Software Engineer C#

12 month contract

Based in Stevenage

Offering 65ph Inside IR35

Do you have experience with C#?

Do you have experience across the lifecycle?

Do you want to work with an industry-leading company?

If your answer to these is yes, then this could be the role for you!

As the Software Engineer C#, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable you to grow within the company and industry.

You will be involved in:

• Supporting the development of advanced defence systems from the initial concept all the way through to in-service support and training
• Working with Project Leads and Simulation Architects to design and develop simulation components as an end-to-end representation of a Weapon System
• Part of an agile development team, made up of mixed discipline engineers working in synergy to develop simulations and representations of real equipment

Your skillset may include:

• Proficient in C# / C++
• Microsoft Visual Studio, Eclipse
• Ability to work from high level/system view into technical detail
• Knowledge of using Microsoft Windows and Linux operating systems
• Distributed simulation standards / Protocols (DIS, HLA, DDS) and web services development (JavaScript, Node JS or similar) Military Communications,
• Datalinks and Interfaces such as 1553/1760 and Ethernet TCP/IP
• Practical knowledge of System integration principles and processes

If this all sounds like something you will be interested in then simply apply and we can discuss the opportunity further!

Software Engineer C#

12 month contract

Based in Stevenage

Offering 65ph Inside IR35

Disclaimer:

This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission. Where the role is marked as Outside IR35 in the advertisement this is subject to receipt of a final Status Determination Statement from the end Client and may be subject to change.

Software Engineer C++

12 month contract

Based in Stevenage

Offering 67ph Inside IR35

Do you have experience with C++?

Do you have experience working in Linux environments?

Do you want to work with an industry-leading company?

If your answer to these is yes, then this could be the role for you!

As the Software Engineer C++, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable you to grow within the company and industry.

You will be involved in:

• Design and develop real-time test and capture software on Linux systems using C++
• Integrate and interface with high-speed SFPDP cards across multi-channel data pipelines
• Architect and implement robust, scalable, and maintainable multi-threaded applications
• Define and implement data sequencing and synchronisation logic to support deterministic capture and replay
• Work with hardware teams to ensure seamless integration and timing alignment between software and capture cards
• Lead and contribute to system integration, verification, and testing at both component and system levels
• Conduct performance analysis, debugging, and optimisation of real-time systems
• Document architecture, interface definitions, and test procedures to support handover and formal test activities

Your skillset may include:

• Experience in C++ development in a Linux environment
• Proficiency in C# for tooling, test interfaces, or Windows components
• Proven experience working with real-time data systems, preferably involving SFPDP or other high-speed digital protocols
• Demonstrable skills in multi-threaded and concurrent programming
• Experience with low-level I/O, DMA, or driver-level interactions with PCIe cards or similar
• Familiarity with software sequencing frameworks or custom state machines for test execution
• Experience with version control systems (e.g., Git) and CI/CD pipelines
• Knowledge of FPGA-based data acquisition systems and synchronisation methods
• Familiarity with unit testing frameworks, automated test rigs, or hardware-in-the-loop (HWIL) setups
• Experience developing or integrating with real-time operating systems (RTOS) or using real-time Linux extensions

If this all sounds like something you will be interested in then simply apply and we can discuss the opportunity further!

Software Engineer C++

12 month contract

Based in Stevenage

Offering 67ph Inside IR35

Disclaimer:

This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission. Where the role is marked as Outside IR35 in the advertisement this is subject to receipt of a final Status Determination Statement from the end Client and may be subject to change.

My client, a clean-tech company, is transforming how the UK manages energy efficiency, with 60,000+ devices already deployed and a fleet that's growing fast. We're looking for a Software Engineer to join their mission of improving carbon efficiency across industry - and the timing couldn't be better, with new government regulations creating massive demand for their solutions.

You'll be joining a close-knit engineering team of 10-11 people, working as an individual contributor on their analytics application that processes 10+ billion records to optimize heat network performance. This is a great role offering significant project ownership and technical autonomy in a fast-growing market.

We're Looking For:

• 4+ years commercial software development experience
• Vue.js framework experience (essential - React/Angular background considered but Vue.js strongly preferred)
• Strong Python backend development skills
• Database design and schema modeling experience with high-volume datasets
• JavaScript proficiency
• Project ownership experience - leading medium-sized projects or major components from concept to release
• SaaS product development background preferred

What's on offer:

• Salary up to 70,000 depending on experience + great benefits including:
• 25 days holiday + bank holidays
• 5% pension contribution
• 1500 annual training budget + 12 paid training days
• Flexibility around hybrid working - typically 2-4 times per month in office. Can the work be done from home? Go for it, although there will be times when you'll be needed on-site for collaboration
• Private health insurance
• Quarterly company socials
• Modern tech stack: Python, AWS, DynamoDB, microservices architecture
• Exposure to cutting-edge data practices and machine learning concepts

The Role:

Working on the analytics platform, you'll be handling large-scale data processing and building features that directly impact heat network efficiency across the UK. With upcoming government regulations expected to drive significant client growth (from 40% to 60%+ uptake), you'll be scaling critical infrastructure that's making a real difference to carbon efficiency.

Want to join a dynamic team building cutting-edge AI solutions and analytics on impactful, global projects?Are you passionate about shaping the future of AI-driven IP tools in a collaborative, flexible environment?About Us
LexisNexis, a part of RELX, is a leading global provider of legal, regulatory, and business information. We help customers increase productivity and improve decision-making and outcomes. Our 10,500 experts and innovative tools help us shape a better world for our customers and communities.About The Role
We are hiring several Software Engineers at various levels to build AI capabilities through the delivery of AI technical research and proof-of-concept work. PatentSight+ enables core IP activities such as competitive intelligence, benchmarking, portfolio optimization, and more by bringing together highly curated and enriched datasets, cutting-edge analysis tools, streamlined workflows, and powerful visualization capabilities, all within a single platform. You will be working in a small, highly skilled agile team, with ownership over the mission and your development practices and process. Your engineering team will be mainly based in the UK and Germany. You will also work closely with an existing application team, data scientists, and a broader range of stakeholders distributed across the UK, Germany, Netherlands, and the USA.
Responsibilities
+ Researching the applicability of cutting-edge AI technology in our features.
+ Keeping up to date with evolving AI frameworks.
+ Delivering reports, insights, and proof-of-concepts (POCs).
+ Helping to build AWS platform infrastructure with CDK, such as Kubernetes services and vector databases.
+ Participating in development processes and code reviews.
+ Operating in a Scrum-based development environment while collaborating with stakeholders.
+ Proactively seeking to learn about best coding practices in Python.
Requirements
+ Ability to write code and tests in Python.
+ Knowledge of AWS or similar cloud providers.
+ Understanding of software engineering techniques and processes.
+ Demonstrable experience with fundamental data science and AI topics.
+ Strong interpersonal, communication, and presentation skills applicable to a wide audience.
+ Experience with Python, Azure Pipelines, and AWS CDK is desirable but not essential.
Work in a way that works for you
We promote a healthy work/life balance across the organisation. We offer an appealing working prospect for our people. With numerous wellbeing initiatives, shared parental leave, study assistance and sabbaticals, we will help you meet your immediate responsibilities and your long-term goals.
+ Working flexible hours - flexing the times when you work in the day to help you fit everything in and work when you are the most productive
Benefits
We know that your wellbeing and happiness are key to a long and successful career. These are some of the benefits we are delighted to offer:
+ Generous holiday allowance with the option to buy additional days
+ Health screening, eye care vouchers and private medical benefits
+ Wellbeing programs
+ Life assurance
+ Access to a competitive contributory pension scheme
+ Save As You Earn share option scheme
+ Travel Season ticket loan
+ Electric Vehicle Scheme
+ Optional Dental Insurance
+ Maternity, paternity and shared parental leave
+ Employee Assistance Programme
+ Access to emergency care for both the elderly and children
+ RECARES days, giving you time to support the charities and causes that matter to you
+ Access to employee resource groups with dedicated time to volunteer
+ Access to extensive learning and development resources
+ Access to employee discounts scheme via Perks at Work
About The Business
LexisNexis Legal & Professional® provides legal, regulatory, and business information and analytics that help customers increase their productivity, improve decision-making, achieve better outcomes, and advance the rule of law around the world. As a digital pioneer, the company was the first to bring legal and business information online with its Lexis® and Nexis® services.
We are committed to providing a fair and accessible hiring process. If you have a disability or other need that requires accommodation or adjustment, please let us know by completing our Applicant Request Support Form or please contact 1- .
Criminals may pose as recruiters asking for money or personal information. We never request money or banking details from job applicants. Learn more about spotting and avoiding scams here .
Please read our Candidate Privacy Policy .
USA Job Seekers:
We are an equal opportunity employer: qualified applicants are considered for and treated during employment without regard to race, color, creed, religion, sex, national origin, citizenship status, disability status, protected veteran status, age, marital status, sexual orientation, gender identity, genetic information, or any other characteristic protected by law.
EEO Know Your Rights .
RELX is a global provider of information-based analytics and decision tools for professional and business customers, enabling them to make better decisions, get better results and be more productive.
Our purpose is to benefit society by developing products that help researchers advance scientific knowledge; doctors and nurses improve the lives of patients; lawyers promote the rule of law and achieve justice and fair results for their clients; businesses and governments prevent fraud; consumers access financial services and get fair prices on insurance; and customers learn about markets and complete transactions.
Our purpose guides our actions beyond the products that we develop. It defines us as a company. Every day across RELX our employees are inspired to undertake initiatives that make unique contributions to society and the communities in which we operate.

**Date Posted:**
2025-06-30
**Country:**
United Kingdom
**Location:**
GBR29: Gloucester, 18b Ley Court, Barnwood Industrial Estate, Barnwood, Gloucester, Gloucestershire, GL4 3RT
**Position Role Type:**
Unspecified
**Software Engineer**
Gloucester or Manchester or London
**Must hold current active eDV clearance**
**Raytheon UK**
At Raytheon UK, we take immense pride in being a leader in defence and aerospace technology. As an employer, we are dedicated to fuelling innovation, nurturing talent, and fostering a culture of excellence.
Joining our team means being part of an organisation that shapes the future of national security whilst investing in your growth and personal development. We provide a collaborative environment, abundant opportunities for professional development, and a profound sense of purpose in what we do. Together, we are not just advancing technology; we're building a community committed to safeguarding a safer and more connected world.
Providing DevSecOps at scale, Artificial Intelligence, Machine Learning, cyber and geospatial intelligence capabilities to support the defence, intelligence and cyber sectors. Collaborating with customers and suppliers to deliver secure, mission critical systems using the latest technologies and innovations.
**About the role:**
You'll be part of our experienced software dev function, working in a cross-functional team, delivering and deploying critical software across a variety of business areas. We have opportunities for Software Engineers at every level within a team, so your Recruiter will discuss the great opportunities for development or challenges we offer based off your professional profile.
This opportunity will be an office-based role at one of our sites in the Gloucester, Manchester or London area. All candidates must already hold eDV to be eligible.
**Required Experience:**
+ Required to currently hold eDV
+ Experience of working in an Agile delivery team
+ Java development using Spring Boot
+ JavaScript frameworks - React, Angular, Vue etc.
+ Cloud services (AWS or Azure)
+ Experience building enterprise level web applications or services
+ Docker / Kubernetes containerisation and orchestration
+ Unit and automation testing
+ Familiarity with Data visualisation techniques and tools
+ Familiarity with structured and unstructured storage of Data
+ Use of Code repositories, familiarity with branching strategies, pull requests and merge processes.
+ MongoDB
+ Apache Kafka
+ Infrastructure as Code (IaC e.g Terraform, Ansible)
**Responsibilities**
+ Design and build software using industry best practice
+ Collaborate with stakeholders and other engineers
+ Contribute to the completion of milestones associated with your project
+ Contribute to continuous improvement within your team
+ Collaborate with your peers on technical direction within your team
**Benefits and Work Culture**
**Benefits**
+ Competitive salaries.
+ 25 days holiday + bank holidays, increasing by 2 days with time in service, plus opportunity to buy and sell up to 5 days
+ Contributory Pension Scheme (up to 10.5% company contribution)
+ Company bonus scheme (discretionary)
+ 6 times salary 'Life Assurance' with pension.
+ Flexible Benefits scheme with extensive salary sacrifice schemes, including Health Cashplan, Dental, and Cycle to Work amongst others.
+ Enhanced sick pay.
+ Enhanced family friendly policies including enhanced maternity, paternity & shared parental leave.
+ Private Medical Insurance (dependant on grade)
**Work Culture**
+ 37hr working week, although hours may vary depending on role, job requirement or site-specific arrangements.
+ Early 1.30pm finish Friday, start your weekend early!
+ A grownup flexible working culture that is output, not time spent at desk, focussed. More formal flexible working arrangements can also be requested and assessed subject to the role. Please enquire or highlight any request to our Talent Acquisition team to explore the flexible working possibilities.
+ Up to 5 paid days volunteering each year.
**RTX**
Raytheon UK is a landed company and part of the wider RTX organisation. Headquartered in Arlington, Virginia, USA, but with over 180,000 employees globally across every continent, RTX provides advanced systems and services for commercial, military and government customers worldwide and comprises three industry-leading businesses - Collins Aerospace Systems, Pratt & Whitney, and Raytheon.
Supporting over 35,000 jobs across 13 UK sites, RTX is helping to drive prosperity. Each year our work contributes over £2.7bn to the UK economy and offers a wealth of opportunities to 4,000 suppliers across England, Scotland, Wales and Northern Ireland. We're investing in all corners of the country, supporting 29,040 jobs in England, 3,040 in Northern Ireland, 1,900 in Scotland and 1,600 in Wales.
#LI-BZ1 C&I
_RTX adheres to the principles of equal employment. All qualified applications will be given careful consideration without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age, disability, protected veteran status or any other characteristic protected by law._
**Privacy Policy and Terms:**
Click on this link ( to read the Policy and Terms
Raytheon Technologies is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.

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.