5,945 Tfl jobs in the United Kingdom

Software Engineer Up to £75k 10% bonus EMI Scheme Full time, permanent About Us Hamiltonian Dynamics is a start-up based in Gloucestershire and Manchester working in the Defence and Cyber Security industries. We are seeking a Software Engineer to join our growing technology team in our next phase of expansion. Tech Stack Exposure We are seeking someone who has experience in one or more of the following technologies but who is also open minded about learning new languages and technologies. Java, Python, JavaScript, TypeScript Angular, React, Vue Docker, Kubernetes AWS, Azure MERN, Elasticsearch, Neo4J What We Offer A competitive salary with an exciting array of projects to work on. Company Benefits that we offer from your first day are: 25 days leave (on top of your bank holiday entitlement) The option to buy or sell 5 days leave per year 10 training days per year 2 volunteering days per year We contribute 8% of your base salary to your pension BUPA Health Cover Life Cover of 4 times your salary EV Car via Salary Sacrifice EMI Scheme Flexi-time We ensure that everyone has an individual training and continual career development plan as we recognise everyone learns in their own way. Our Process We like to keep things nice and simple! Therefore, we only have a two stage interview process. The first is a chat with our recruiter, Sarah, and the next is a 1 hour Teams call with two of the team. It's as easy as that! We believe organic conversation is the best way to find out about someone. After all, recruitment is a two-way process! Security Clearance For this particular role, we require you to already hold a high level clearance. There is also a requirement to be on-site 4-5 days per week, which means you must be commutable to either Gloucestershire, Manchester or London.

Join us as a Software Engineer for our client. At Peregrine, we’re always seeking Specialist Talent that have the ideal mix of skills, experience, and attitude, to place with our vast array of clients. From Business Analysts in large government organisations to Software Developers in the private sector – we are always in search of the best talent to place, now. How Specialist Talent Works: At Peregrine, we find the best talent for our clients. As a permanent employee of Peregrine, with access to all our standard benefits, you will be deployed across our portfolio of clients as a specialist consultant, working on a wide array of complex projects across multiple industries. The Role: We are looking for a Software Engineer with a strong foundation in API development and C# to join our data engineering team in a highly regulated industry. In this role, you’ll be instrumental in designing and building scalable, secure software systems that support seamless data movement between internal systems, third-party platforms, and cloud services. Your core focus will be developing and maintaining APIs and backend services that enable data ingestion, transformation, and delivery across our enterprise architecture. You’ll collaborate with cross-functional teams to ensure data is available where and when it’s needed—reliably, efficiently, and in compliance with strict regulatory standards. We’re seeking candidates with over 5 years of relevant experience, a solid understanding of software system design, and a strong command of C# and modern API development patterns. A background in working with data systems, cloud integrations, and secure, large-scale applications will be highly advantageous. Responsibilities: Design, develop, and maintain scalable APIs and backend services to facilitate data flow between systems. Collaborate with data engineers, architects, and security teams to ensure secure, reliable, and performant data exchange. Work across cloud and on-premises environments to support a hybrid infrastructure. Build reusable and modular components with a focus on maintainability and performance. Implement robust error handling, logging, and monitoring strategies for production-grade services. Ensure compliance with data protection, privacy regulations, and internal governance policies. Contribute to technical designs, architectural decisions, and system documentation. Stay current with best practices and emerging technologies in software engineering and data systems. Skills & Experience: You will have the following skills or proven experience: API Development: Proven experience designing and building RESTful APIs and services at scale. Experience with authentication, authorization, and secure API communication (OAuth2, JWT, etc.). Familiarity with API gateways, microservice architecture, and asynchronous messaging patterns (e.g., queues, event buses). Programming Proficiency: Strong experience with C# and .NET frameworks. Solid understanding of data structures, algorithms, and programming principles. Experience working with other relevant languages such as Python, JavaScript, or TypeScript. System Design: Ability to design and implement scalable software systems. Familiarity with distributed system patterns and architectural trade-offs. Experience with performance tuning and troubleshooting in complex environments. Data Systems Knowledge: Exposure to working in data-centric environments, supporting ETL/ELT pipelines or data processing services. Familiarity with SQL and NoSQL databases. Understanding of data privacy and security concepts. Tooling & Infrastructure: Experience with CI/CD pipelines, containerization (Docker/Kubernetes), and version control systems (e.g., Git). Ways of Working: Comfortable working in Agile/Scrum environments, participating in sprint planning, stand-ups, and retrospectives. Experience using Agile collaboration tools (e.g., Jira, Azure DevOps, Confluence). Communication: Ability to clearly articulate complex technical topics to non-technical stakeholders. Strong documentation habits and a commitment to knowledge sharing. Excellent verbal and written communication skills. Collaboration & Relationship Management: Proven success working in cross-functional teams with product, security, compliance, and data professionals. Builds strong relationships, manages conflicts constructively, and drives consensus where needed. Able to adapt to diverse working styles and team dynamics. Analytical Thinking & Problem-Solving: Strong analytical skills with a structured, logical approach to diagnosing and resolving issues. Detail-oriented with a mindset geared toward continuous improvement. Able to prioritize and manage multiple projects simultaneously in a dynamic environment. About us: At Peregrine, we see beyond the immediate and look to the horizon. We build lasting, meaningful partnerships with our clients, and deliver flexible solutions for every resourcing need, both now and in the future. Together, we help our clients to engage, develop and harness the skills they need to achieve and grow the workforce they want. We have a range of benefits you will receive alongside your salary. Our culture: At Peregrine we embrace fresh ideas, and we love learning fast. Our solutions are trusted and established, so we have the confidence of knowing we have a solid foundation. We rely on openness and honesty, and we’re always ready to help each other out. And we believe that our work can benefit society – whether it’s finding the digital talent of the future or being a driver for social mobility. Our commitment to diversity: At Peregrine, we’re proudly committed to championing diversity and inclusion, with company-wide initiatives to drive greater social mobility and reduce our environmental impact. Our teams represent a huge breadth of cultures, languages, and ethnicities, and over 20 different nationalities. We also employ candidates from a range of educational and socioeconomic backgrounds. Our partnerships with numerous charities ensure that we can stay well-informed and continue to improve our practices for the future. It reflects in the way we recruit for our clients as we assist them in becoming more diverse.

Job Title: Senior Software Engineer Salary: £40,000 – £5,000 (dependent on experience) Location: Hertfordshire (relocation package may be available) Working Pattern: Hybrid – typically 3–5 days on-site per week Security Clearance: British Citizen or Dual UK national with British citizenship About the Role We are seeking a talented Senior Software Engineer to join our dynamic team, where your work will directly impact cutting-edge defence technology while advancing your career. This is an exciting opportunity to engage with innovative software solutions and contribute to the testing and validation of critical defence systems. You will collaborate closely across Electronic Engineering, Software Engineering, and our Test Centre of Excellence to deliver robust test capabilities. Your work will support the full lifecycle of advanced defence products, from development and production through to field testing. As part of our team, you will contribute to software that integrates with complex test equipment hardware, ensuring the conformance, quality, and performance of our products in high-stakes environments. Key Responsibilities Develop reliable, high-performance software using C, C++, or ADA for test solutions. Design, analyse, review, and document software to meet stringent quality standards. Solve complex technical challenges, often in multi-disciplinary contexts. Collaborate with Systems Engineering, Electronics, and Test & Validation teams to ensure seamless integration of solutions. Contribute to projects where software is mission-critical and time-sensitive. What We’re Looking For Experience in software engineering or electronics with transferable skills to software development. Strong analytical, design, and problem-solving abilities. Flexible, proactive, and solution-oriented approach. Excellent communication skills to engage effectively with multiple stakeholders. Passion for developing novel, mission-critical software solutions. What We Offer Company Bonus: Up to £2,500 performance-dependent). Pension: Maximum total contributions up to 14% (employer employee). Overtime: Opportunity for paid overtime. Flexi Leave: Up to 15 additional days. Enhanced Parental Leave: Up to 26 weeks for maternity, adoption, and shared parental leave, with enhancements for paternity, neonatal leave, and fertility treatments. Facilities: Excellent site facilities including subsidised meals and free parking. Why Join Us You will become part of a multi-disciplined, agile, and forward-thinking team, contributing to technology that supports national defence. We pride ourselves on a culture of inclusion, supporting networks for gender equality, diversity, neurodiversity, disability, and more. We welcome applicants who may require advice, support, or adjustments throughout the recruitment process. Important Notice Please note that we can only proceed with applications from candidates who currently hold UK nationality due to the security clearance levels required. For more information, please contact Kieran Slaughter on or via email at

Build the engine behind the platform, transforming frontline access. At Cocentric, we’re scaling Connect – our flagship SaaS platform built to simplify workforce access, provisioning, and digital identity. From automated onboarding to secure SSO and real-time data integrations, Connect is helping frontline organisations empower their people at scale. We’re looking for a Software Engineer to help shape and build the next generation of Connect. You’ll work as part of a multidisciplinary team across engineering, product, and architecture – designing services, writing code, and solving meaningful problems that impact thousands of employees. This is a hands-on, delivery-focused role for someone who enjoys building secure, scalable back-end systems and thrives in a high-trust, collaborative environment. WHAT YOU WILL DO Develop and maintain back-end services, APIs, and integrations for the Connect platform Write clean, efficient, and testable C# code that performs at scale Contribute to the design and evolution of Connect’s architecture, working closely with architects and senior engineers Collaborate with front-end developers, QA, and product teams to deliver end-to-end features Build with performance, security, and maintainability in mind – always Write and maintain automated unit and integration tests within our CI/CD pipeline Contribute to technical planning, estimation, and documentation Continuously improve our development processes and engineering standards WHAT YOU’LL BRING Strong experience in C# and the .NET ecosystem Experience building scalable, secure applications in Azure (Service Fabric, Cosmos DB, Azure Functions, etc.) Solid understanding of modern back-end architecture – including microservices, APIs, and messaging patterns Familiarity with CI/CD pipelines, automated testing, and DevOps practices Experience troubleshooting production issues and delivering resilient solutions A collaborative mindset and great communication skills – able to work well across disciplines Bonus: experience with identity systems (e.g. Microsoft Entra ID / Azure AD), SSO, or HRIS integration OUR TECH STACK Frontend: React, JavaScript Backend: C#, .Net, Azure Service Fabric, Kubernetes Infrastructure: Azure, Service Fabric, Cosmos DB WHY COCENTRIC Be a key part of a product that’s transforming how the frontline workforce connects Help shape the technical foundation of a platform built for scale and impact Work alongside a talented, fast-growing team backed by investment and momentum Hybrid working model with a base in our London office and flexibility to work from home 29 days annual leave, including a day off for your birthday, plus bank holidays. Our office closes over Christmas Generous private medical care and additional perks with Vitality Cocentric recognise that your family is important and being able to spend quality time with your family as it grows is a wonderful experience. This is why we offer enhanced Maternity, Paternity, Adoption and Parental leave.

Python Engineer Permanent | Fully remote (UK based only) Sports Trading | Start up What you’ll tackle Translate data-flow headaches into buildable tech projects, managing data pipelines Python engineering to stand-up analytics services, REST APIs and lightweight front-ends. Data ingestion (SQL, files, feeds), business logic, web/UI, CI pipelines and Linux deployment. White-board with quants, ask clarifying questions, iterate live and keep comms flowing. What you need 3 years building production-grade Python systems for data-heavy businesses; comfortable with tests, version control and optimisation. Confident SQL , exposure to REST and messaging (Rabbit, Kafka, etc.), and enough Linux to troubleshoot on the command line. Solid grounding in financial products & risk metrics —equities, bonds and derivatives; VaR, stress, PnL explain. Excellent communicator who never “goes dark”, loves prototyping and isn’t afraid to ask the awkward question. A self-starter ready to jump into the deep end and push tech (and yourself) beyond comfort zones, is capable working fully remote and in a small team. Bonus points for: cloud technologies (preferably AWS) Interested? Reply with your CV or reach out for a confidential chat.

We are TravelPerk : a scaling unicorn valued at $1.3billion that has raised over $00m since our creation in 2015. Backed by world-class investors with portfolios including AirBnb, Stripe, Slack, Trello, Gusto, Twitter, Farfetch and Deliveroo, our team is made up of A-players from across the travel and technology industries. Over the past few years, we’ve been named the fastest-growing SaaS startup in the world by SaaS1000 and featured as one of the hottest startups to watch by both Forbes and Wired. We’re revolutionising the B2B corporate travel market—worth over $1.3 t illion— to connect people in real life in an enjoyable and sustainable way. We’re not looking for stack experts . We’re looking for smart people who can bring in the best tools and processes to get the job done. You will work on a day-to-day basis with our product team to design, architect and implement our product. TravelPerk is a next-generation platform to take the pain out of booking and managing business travel. As Software Engineer , this position involves: Product development in Python/Django and/or React of a travel-related web-based product Integrations between our product to 3rd party APIs System architecture design, implementation, and testing Work in an Agile environment with strong attention to a well-documented code, unit testing, and continuous integration Required skills and experience: "Product Engineering" mindset Pragmatism and obsession for simplicity, efficiency, and performance Extensive experience in similar roles building technically complex products in any web programming language An expert level at server-side , client-side or full stack development . Your final role within the team will depend on your skills and internal training will be provided What do we offer? Competitive compensation including equity in the company Generous vacation days so you can rest and recharge Health perks such as private healthcare or gym allowance "Flexible compensation plan" to help you diversify and increase the net salary Unforgettable TravelPerk events including to travel to one of our hubs Mental health support tools for your wellbeing Exponential growth opportunities TravelPerk is a global company with a diverse customer base—and we want to make sure the people behind our product reflect that. We’re an equal opportunity employer, which means you’re welcome at TravelPerk regardless of how you look, where you’re from, or anything else that makes you, well, you.

Software Engineer Chester – 2x a week Up to 42K We have teamed up with an industry powerhouse who are on the hunt for a software developer to join their team! Developing both greenfield and legacy projects, you’ll be working on the latest tech to develop and upgrade their platforms. This role is heavily based around building and upgrading their ecommerce site, A/B tests, and some developments go hand in hand with their mobile apps. What You'll Be Doing: Design, develop, and enhance features with a multi-disciplinary team. Build and maintain microservices, campaign tools, and non-transactional sites. Develop and support Commerce Cloud apps, including bug fixes and new features. Optimise eCommerce performance and implement improvements . Run A/B tests and integrate successful changes into production. Contribute to planning, solution design, and team reviews. What We Are Looking For: Proficient in TypeScript, JavaScript, HTML, and SCSS . Experience with frameworks like Node.js and React.js. Familiarity with Commerce platforms or CMS tools . Exposure to cloud platforms is desirable (AWS, GCP, or Azure) Salary up to 42K, Hybrid working (2x a week onsite), 33 days holiday (including bank holidays), Partner discounts and much more! If this sounds like your next career move, apply today!

Software Engineer- London BioOrbit is pioneering space-based drug manufacturing. We use microgravity to grow high-quality protein crystals, enabling easier, at-home injectable therapies. As part of our recent success we are looking to grow our team. Position Overview We are seeking an experienced Software Engineer with specialized expertise in payload software development to create autonomous control systems for revolutionary in-orbit pharmaceutical manufacturing platforms. This role focuses on developing mission-critical flight software that must operate reliably in the harsh space environment while controlling precise pharmaceutical manufacturing processes in microgravity. You will be responsible for designing and implementing sophisticated software architectures that enable autonomous pharmaceutical production, real-time process monitoring, and fail-safe operation throughout all mission phases. This position offers the extraordinary opportunity to pioneer flight software for an entirely new industry—space-based pharmaceutical manufacturing—where software reliability, autonomous operation, and precision control are essential for producing life-saving medications beyond Earth. Key Responsibilities Design and develop flight-qualified payload software for autonomous pharmaceutical manufacturing systems, including process control algorithms, data acquisition systems, and real-time monitoring capabilities for microgravity operations. Lead software integration and comprehensive testing of payload systems, including hardware-in-the-loop testing, software verification/validation, and flight software qualification according to space industry standards. Implement robust software architectures with fault tolerance, autonomous recovery capabilities, and fail-safe mechanisms to ensure reliable pharmaceutical production in space environments. Develop ground support software and user interfaces for mission planning, payload operations, and real-time system monitoring during space missions. Oversee software deployment and maintenance across development and production environments, implementing DevOps practices, version control systems, and automated deployment pipelines. Provide comprehensive user support and system optimization, including troubleshooting, performance monitoring, and proactive maintenance of critical systems. Lead digital transformation initiatives, evaluating and implementing new technologies, software platforms, and IT solutions to enhance operational efficiency. Create and maintain technical documentation for both payload software systems and IT infrastructure, including software requirements, system architectures, and operational procedures. Drive technical collaboration across engineering teams through code reviews, system integration meetings, and technical presentations to stakeholders and senior management. Technical Skills Core Competencies Proficiency in embedded programming languages (Python, C/C++, MATLAB) and space payload development frameworks with extensive real-time system experience. Expertise in payload software development, including embedded systems programming, real-time operating systems (RTOS), and flight software architecture patterns for mission-critical applications. Comprehensive knowledge of software verification and validation processes for space applications, including unit testing, integration testing, formal verification methods, and software quality assurance. Working knowledge of ECSS standards for space software development (ECSS-E-ST-40C, ECSS-Q-ST-80C) and space software qualification processes. Advanced experience with spacecraft communication protocols, telemetry/telecommand systems, and space-to-ground data interfaces for mission operations. Strong background in autonomous control systems, including machine learning algorithms, adaptive control theory, and decision-making frameworks for space applications. Expertise in pharmaceutical process control software, including batch control systems, process monitoring algorithms, and quality assurance automation preferred. Proficiency in software simulation and modeling tools for testing flight software in simulated space environments and pharmaceutical process validation. Experience with safety-critical software development, including hazard analysis, software safety requirements, and fault-tolerant software design patterns. Advanced debugging and diagnostic capabilities for complex embedded systems with experience in hardware-software integration and troubleshooting. Strong project management skills with experience leading flight software development projects from requirements through mission operations. Excellent technical communication abilities with experience presenting complex software architectures to multidisciplinary engineering teams and mission stakeholders. Required Qualifications Bachelor's degree in Software Engineering, Computer Science, Electrical Engineering, or related field. 3-5 years of experience in software development, payload systems, or related technical role. Experience with embedded software development and IT system management projects. Preference for candidates with space systems or satellite payload software experience. Knowledge of ECSS standards (ECSS-E-ST-40C, ECSS-Q-ST-80C) preferred This is an exciting opportunity to join a team that is at the forefront of innovation and pushing the boundaries of in space manufacturing. If you feel this role is of interest, please apply and one of the team from Innoforge will be in touch. Unfortunately, sponsorship cannot be provided for this position

Engineer (with Data Analytics) – Fintech – London/Hybrid An innovative fintech is seeking a Engineer to join its core engineering team. The business processes terabytes of market data daily using an advanced AWS-based platform, and this role will be central to scaling and optimising that infrastructure. The role: Design and build scalable solutions on AWS. Ensure system reliability, monitoring, and performance. Implement workflow automation and CI/CD pipelines. Collaborate with engineering teams on large-scale data pipelines. Continuously evaluate new tools and technologies. Requirements: Strong Python skills. Experience with AWS and cloud-based systems. Background with Linux, Docker, SQL/relational databases. 2 years’ industry experience and a STEM degree. Bonus: Spark, Kafka, Terraform, Airflow or similar. What’s on offer: Competitive salary bonus. Hybrid working (2–3 days London office). 25 days holiday bank holidays, pension, private medical. Ongoing training, socials, and wellbeing perks. An excellent opportunity for an engineer who enjoys solving complex infrastructure challenges at scale.