2,204 Software Engineer Iii jobs in the United Kingdom

About the Business:
At Cirium, our goal is to keep the world connected. We are the industry leader in aviation analytics; helping our customers understand the past, present, and predicting what will happen tomorrow. Our mission is to transform the aviation industry by enabling airlines, airports, travel companies, tech giants, aircraft manufacturers, financial institutions and many more accelerate their own digital transformation. You can learn more about Cirium at the link below. our Team:
By joining us you will have the opportunity to share ownership in solving this problem end to end. From exploring new data sources for building features, to design and put in production predictive models and make sure they perform consistently over time. We have available terabytes of flights, events and news data and we constantly add new data sources. What we are looking for is someone with sound technical knowledge in ML, statistics and software engineering, the creativity to leverage this knowledge in solving unusual problems and the will to operate while outside his/her comfort zone
About the Role:
You'll be part of our Software Engineering squads, working with talented engineers and performing complex research, design, and implementation within a software functional area or product line. Your role will cover all aspects of the software development lifecycle as you will develop, refactor, fix, test and review new software functionality, improvements, and bug fixes to our product portfolio. You will also provide direct input to project plans, schedules, and methodology in the development of cross-functional software products.
To be a role model and leader for not just your squad, but all of Cirium engineering. Foster innovative culture, handle stakeholder meetings and discussions with other business entities to bring products to market.
You will be a champion for engineering and open to new ideas and technology - we like to keep ahead of the game not just up to date!
Responsibilities:
+ Develop, refactor, fix, test and review new software functionality, improvements, and bug fixes to our flagship enterprise products.
+ Work with the development team on design and code refactoring to ensure a quality code base.
+ Peer code review to promote best practice and continuous improvement.
+ Test your own code and your colleague's code. No code should go untested!
+ Liaise with Customer Support Team to help diagnose and solve problems.
+ Collaborate with other team members to apply new ideas, practices, and tools to improve the team's effectiveness, finding opportunities to improve Cirium's products, processes, and development environment.
+ Write and review detailed documentation for the development of micro services.
+ Keep abreast of new technology developments and bring these into the business, particularly GenAI.
Requirements:
+ You have proficiency in development languages and technologies such as JavaScript, TypeScript, React, GraphQL , HTML, CSS, Node, Json, XML, SQL, Docker, Kubernetes, Python and .Net .
+ You have experience leveraging w ith could services such as AWS and the services they offe r including but not limited to lambda functions, EKS, ECS, SQS, etc.
+ You have proficiency with data manipulation languages
+ You have an understanding of data modelling principles
+ You have the ability to work with complex data models
+ You have any knowledge of data storage subsystems
+ You have knowledge of and experience with of test-driven development
+ An interest in GenAI
Working for you:
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
Learn more about the LexisNexis Risk team and how we work
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 .
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.
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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.

Are you ready for the next step in your engineering career?
Would you enjoy working on our cutting-edge products?
About the Business:
At Cirium, our goal is to keep the world connected. We are the industry leader in aviation analytics; helping our customers understand the past, present, and predicting what will happen tomorrow. Our mission is to transform the aviation industry by enabling airlines, airports, travel companies, tech giants, aircraft manufacturers, financial institutions and many more accelerate their own digital transformation. You can learn more about Cirium the Team :
You will be joining a collaborative, curious, team of Software Engineers at all different levels. By joining us you will have the opportunity to share ownership in solving this problem end to end.
About the role:
As a Software Engineer III you will perform moderately difficult research, design, and software development assignments within a specific software functional area or product line. The position should have the ability to work on individual pieces of work and solve problems including the design of the program flow of individual pieces of code, effective coding, and unit testing.
Responsibilities:
+ Interfacing with other personnel or team members to finalize requirements
+ Writing and reviewing portions of detailed specifications for the development of system components of moderate complexity
+ Working closely with other Development team members to understand Product Requirements and translate them into Software designs
+ Implementing development processes, coding best practices and code reviews
+ Operating in various development environments (Agile, Waterfall, etc.) while collaborating with key stakeholders
+ Completing bug fixes and resolving technical issues
Requirements:
+ Have a BS degree in Engineering Computer Science or equivalent experience
+ Have solid Software Development experience
+ Be proficient in development languages, including one or more the following: Java, Springboot, Python, C#
+ Have an excellent understanding of data modelling principles, data manipulation languages, and storage systems
+ Be familiar with industry best practices, such as code coverage
+ Have a good knowledge of software development methodologies (e.g., Agile, Scrum, Kanban) and test-driven development
+ Have the ability to work well with internal and external technology resources
+ Have excellent verbal and written communication skills
Learn more about the LexisNexis Risk team and how we work here ( #LI-hybrid
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 .
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.
USA Job Seekers:
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.

**Minimum qualifications:**
+ Bachelor's degree or equivalent practical experience.
+ 2 years of experience with software development in Java programming language, or 1 year of experience with an advanced degree in an industry setting.
**Preferred qualifications:**
+ 2 years of experience with data structures and algorithms.
+ 2 years of experience with Android internals or Android Open Source project.
+ 2 years of experience with Unix or Linux operating systems and commands.
Google's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. Our products need to handle information at massive scale, and extend well beyond web search. We're looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing, UI design and mobile; the list goes on and is growing every day. As a software engineer, you will work on a specific project critical to Google's needs with opportunities to switch teams and projects as you and our fast-paced business grow and evolve. We need our engineers to be versatile, display leadership qualities and be enthusiastic to take on new problems across the full-stack as we continue to push technology forward.
Android is Google's open-source mobile operating system powering more than 3 billion devices worldwide. Android is about bringing computing to everyone in the world. We believe computing is a super power for good, enabling access to information, economic opportunity, productivity, connectivity between friends and family and more. We think everyone in the world should have access to the best computing has to offer. We provide the platform for original equipment manufacturers (OEMs) and developers to build compelling computing devices (smartphones, tablets, TVs, wearables, etc) that run the best apps/services for everyone in the world.
**Responsibilities:**
+ Build the platform APIs and services used to implement the Android Core Operating system.
+ Support and release services via Google Mobile Services, that are critical to the Android Core Operating system.
+ Build tests as well as in-field metrics to ensure the quality of these platform services.
+ Work with a variety of Google technologies. The stack is primarily written in Java.
+ Collaborate with other Product Areas, such as Pixel, Enterprise, Android TV building devices to ensure the services meet their needs.
Google is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. See also and If you have a need that requires accommodation, please let us know by completing our Accommodations for Applicants form:

**Minimum qualifications:**
+ Bachelor's degree or equivalent practical experience.
+ 2 years of experience with software development in one or more programming languages, or 1 year of experience with an advanced degree.
+ 2 years of experience with Android Application development.
+ Experience in Java.
**Preferred qualifications:**
+ Experience with iOS.
+ Experience with connectivity stacks including WiFi, USB and Bluetooth.
Google's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. Our products need to handle information at massive scale, and extend well beyond web search. We're looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing, UI design and mobile; the list goes on and is growing every day. As a software engineer, you will work on a specific project critical to Google's needs with opportunities to switch teams and projects as you and our fast-paced business grow and evolve. We need our engineers to be versatile, display leadership qualities and be enthusiastic to take on new problems across the full-stack as we continue to push technology forward.
In this role, you will manage project priorities, deadlines, and deliverables. You will design, develop, test, deploy, maintain, and enhance software solutions.
Android is Google's open-source mobile operating system powering more than 3 billion devices worldwide. Android is about bringing computing to everyone in the world. We believe computing is a super power for good, enabling access to information, economic opportunity, productivity, connectivity between friends and family and more. We think everyone in the world should have access to the best computing has to offer. We provide the platform for original equipment manufacturers (OEMs) and developers to build compelling computing devices (smartphones, tablets, TVs, wearables, etc.) that run the best apps/services for everyone in the world.
**Responsibilities:**
+ Write a product or system development code.
+ Review code developed by other engineers and provide feedback to ensure best practices (e.g., style guidelines, checking code in, accuracy, testability, and efficiency).
+ Contribute to existing documentation or educational content and adapt content based on product/program updates and user feedback.
+ Triage product or system issues and debug/track/resolve by analyzing the sources of issues and the impact on hardware, network, or service operations and quality.
+ Participate in, or lead design reviews with peers and stakeholders to decide amongst available technologies.
Google is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. See also and If you have a need that requires accommodation, please let us know by completing our Accommodations for Applicants form:

**Description**
At American Express, our culture is built on a 175-year history of innovation, shared values and Leadership Behaviors, and an unwavering commitment to back our customers, communities, and colleagues. As part of Team Amex, you'll experience this powerful backing with comprehensive support for your holistic well-being and many opportunities to learn new skills, develop as a leader, and grow your career.
Here, your voice and ideas matter, your work makes an impact, and together, you will help us define the future of American Express.
American Express' Global Commercial Services (GCS) offers a wide range of card and payment programs, expense management tools, consulting services, business financing and cross-border payments solutions to small businesses, mid-sized companies and large corporations around the world. The Buyer Initiated Payments (BIP) is part of the B2B Payments within Global Commercial Services. The BIP team strives to provide flexible and digital financing solutions for business customers of all sizes in lead markets around the world and drive key business outcomes.
**How will you make an impact in this role?**
BIP supports B2B & International payments, one of the fastest growing segments of our business. We are looking for a high performing and enthusiastic Engineer to join our innovative BIP team in GCS at American Express in Burgess Hill. This role offers an exciting opportunity to work on cutting-edge technologies, develop scalable solutions, and contribute to the transformation of payment solutions for businesses. As a key member of our agile team, you will help shape the future of B2B financial services while delivering exceptional value to our partners and customers.
Key Responsibilities:
+ Write clean, maintainable, testable and well-documented code while adhering to industry best practices and internal standards.
+ Participate in code reviews, provide constructive feedback, and ensure code quality.
+ Collaborate effectively with other engineers to deliver innovative solutions aligned with business needs.
+ Partner with Product Owners to define requirements and plan work increments.
+ Exhibit a positive attitude, strong communication skills, and a willingness to learn and collaborate.
+ Support continuous integration and deployment pipelines to ensure efficient delivery of software updates.
+ Identify and address performance bottlenecks, security vulnerabilities, and other technical challenges within the system.
+ Stay informed about new technologies, trends, and integrate them into the development process where appropriate.
+ Provide technical support and troubleshooting expertise for production systems as required.
**Minimum Qualifications:**
+ Minimum 4- 5 years of professional experience in software development.
+ Proficient in Java and/or Kotlin
+ Experience with microservices architecture and RESTful API design and development using Sprint Boot.
+ Familiarity with cloud platforms (e.g., AWS, Azure, or Google Cloud) and containerization technologies like Docker or Kubernetes.
+ Knowledge of database technologies, both relational (e.g., PostgreSQL, MySQL) and NoSQL (e.g., MongoDB, Cassandra).
+ Experience in software development with a strong emphasis on unit testing and TDD
+ Understanding of security best practices in software development, including data protection and secure coding techniques.
+ Understanding of CI/CD pipelines and related tools such as Jenkins or GitHub Actions.
+ Strong problem-solving skills and the ability to work independently or collaboratively in an agile environment and working with key product stakeholders.
+ Excellent written and verbal communication skills, with the ability to articulate technical concepts to non-technical stakeholders.
+ Bachelor's degree in computer science, Software Engineering, or a related field.
**Qualifications**
We back you with benefits that support your holistic well-being so you can be and deliver your best. This means caring for you and your loved ones' physical, financial, and mental health, as well as providing the flexibility you need to thrive personally and professionally:
+ Competitive base salaries
+ Bonus incentives
+ Support for financial-well-being and retirement
+ Comprehensive medical, dental, vision, life insurance, and disability benefits (depending on location)
+ Flexible working model with hybrid, onsite or virtual arrangements depending on role and business need
+ Generous paid parental leave policies (depending on your location)
+ Free access to global on-site wellness centers staffed with nurses and doctors (depending on location)
+ Free and confidential counseling support through our Healthy Minds program
+ Career development and training opportunities
Offer of employment with American Express is conditioned upon the successful completion of a background verification check, subject to applicable laws and regulations.
**Job:** Technologies
**Primary Location:** United Kingdom-West Sussex-Burgess Hill
**Schedule** Full-time
**Req ID:** 25011694

**Minimum qualifications:**
+ Bachelor's degree or equivalent practical experience.
+ 2 years of experience with software development in one or more programming languages, or 1 year of experience with an advanced degree.
+ 2 years of experience with Android application development.
**Preferred qualifications:**
+ Master's degree or PhD in Computer Science or related technical fields.
+ 2 years of experience with data structures or algorithms.
+ Experience developing accessible technologies.
+ Experience with open source development like Jetpack.
+ Excellent problem-solving and investigative skills.
Google's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. Our products need to handle information at massive scale, and extend well beyond web search. We're looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing, UI design and mobile; the list goes on and is growing every day. As a software engineer, you will work on a specific project critical to Google's needs with opportunities to switch teams and projects as you and our fast-paced business grow and evolve. We need our engineers to be versatile, display leadership qualities and be enthusiastic to take on new problems across the full-stack as we continue to push technology forward.
Our primary product is Android Health Connect and we believe that by making it easier for developers to share data, we can help users reach their health goals. We are also responsible for Google Fit infrastructure and we work closely with the Fitbit team to provide a coherent experience to our users.
The Platforms and Devices team encompasses Google's various computing software platforms across environments (desktop, mobile, applications), as well as our first party devices and services that combine the best of Google AI, software, and hardware. Teams across this area research, design, and develop new technologies to make our user's interaction with computing faster and more seamless, building innovative experiences for our users around the world.
**Responsibilities:**
+ Participate in, or lead design reviews with peers and stakeholders to decide among available technologies.
+ Help to keep Google Fit infrastructure up and running by joining the oncall rotation.
+ Work with other Google teams to improve the integrations and to migrate features and user data.
+ Work with other Google teams to move data across different systems by contributing to the mobile apps, the Google Play Services modules and the backend servers and storage.
Google is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. See also and If you have a need that requires accommodation, please let us know by completing our Accommodations for Applicants form:

Based in newly refurbished offices in Guildford, this profitable software engineering company works with global corporations. Their software products allow users to develop sophisticated engineering models used within energy and renewables with future applications in banking and healthcare.

The software teams are highly educated (many with PhDs), and academic background is important in their technical recruitment approach.

Currently, they are looking to recruit a Software Development Engineer to join a nascent group to incorporate innovative AI / ML features into their software offerings. The focus is still on design, development and deployment of well-engineered scalable software solutions, the challenge is how to best utilise AI / ML into these software products.

Requirements:

- Strong academic background, minimally a Master’s in computer science, physics, engineering or similar, and ideally a PhD in a relevant subject area.- 

- Demonstrable experience developing desktop and web applications including production-grade software. This should include experience with software architecture and understanding how to support structured (SQL) and unstructured (RAG) data.

- Experience with Python and C++ / C# including how to integrate ML features.

The role does require relevant technical expertise, limited university / freelance projects are not sufficient.

On offer is an excellent remuneration package including a wide range of benefits. Successful candidates will need to undertake background checks and also work fully onsite to take up this role.

Keywords: Software Engineering, AI / ML Applications, Desktop / Web, Data Engineering Support, Python, C++, C#, Onsite, Guildford

Another top job from ECM, the high-tech recruitment experts.    

Even if this job's not quite right, do contact us now - we may well have the ideal job for you. To discuss your requirements call ecm or email your CV. We will always ask before forwarding your CV.

Please apply (quoting ref: CV27474 ) only if you are eligible to live and work in the UK. By submitting your details you certify that the information you provide is accurate.

Join a well-established, control specialist with nearly 40 years of global impact. With decades of experience and a worldwide client base, this organisation specialises in designing and implementing intelligent systems that improve efficiency, traceability and operational insight. 

Employees benefit from a collaborative and technically skilled team, where knowledge is shared. This position is due to retirement and offers significant scope for professional growth and progression over time.

Software Engineer - Automation Projects

C#.NET / VB.NET /SQL

£40K-£55k+ Benefits

Pension, Overtime, Annual Bonus, Company Gym membership, Car Scheme

Ref: 24795

The Role:

• Developing and maintaining integrations solutions
• Software design and architecture
• Communicate with customers and translate their requirements into functional design specifications
• Develop and test software according to the functional design and perform FAT
• Application development and implementation
• Testing, debugging, and performance tuning
• Technical documentation
• Maintenance and support of existing systems
• Collaboration with team members and stakeholders
• Customer support and training and on-site commissioning

 Essential skills

• C#.NET
• VB.NET
• XML
• JSON
• Web development
• SQL / Databases
• Visual Studio

Located in the North West, this role is commutable from within and around the following locations: Stoke-on-Trent, Congleton, Crewe, Macclesfield and Northwich. We require an Engineer with strong communication skills and a good client manner and a full UK Driver’s License.

For further information call Sharon Hill 

AE1

Job Title: Software Development Engineer

Location: Warwickshire

EES Solution is seeking multiple Software Development Engineers to join our client's high-tech product development teams. These roles involve the design, development, and maintenance of both end-user applications and core platform/utility software. You'll be instrumental in building and evolving robust software platforms that support scalable applications in fast-paced engineering environments.

This is an exciting opportunity for software professionals looking to apply their expertise across the full development lifecycle, from gathering requirements and writing clean, efficient code to testing, deploying, and supporting production systems.

Key Responsibilities:

• Analyse and gather software requirements and design system functionality.
• Develop high-quality code using appropriate programming, scripting, or database languages.
• Collaborate with cross-functional teams to implement new features or enhancements.
• Support testing, debugging, and troubleshooting of existing software applications.
• Maintain and evolve existing codebases based on performance analysis or changing requirements.
• Follow and promote software development best practices including:
  • Coding standards
  • Code reviews
  • Source control (e.g., Git)
  • Build and CI/CD processes
  • Automated and manual testing
• Participate in system integration and user acceptance testing (UAT).
• Work independently and contribute effectively within an Agile or DevOps environment.

Required Skills & Experience:

• Solid programming experience with one or more of the following languages:
  • Python, C++, Java, C#, or similar.
• Experience with software development tools and practices (e.g., Git, Jenkins, Docker, Jira).
• Strong debugging, troubleshooting, and performance tuning skills.
• Understanding of object-oriented and/or functional programming principles.
• Familiarity with Agile methodologies and version control workflows.
• Ability to interpret and translate complex system requirements into working software.

Preferred Skills:

• Experience with embedded systems or platform-level development.
• Familiarity with scripting languages (Shell, Bash, PowerShell, etc.).
• Exposure to modern software architectures, microservices, or cloud platforms.
• Knowledge of DevOps practices or automated testing frameworks.
• UI/UX development or front-end frameworks experience is a plus.