76 to 100 of 183 Senior Developer Jobs in London

Position : Mid/Senior React Developer Type : Permanent Location : Central Croydon - Office based position Reports to : Head of Development Salary : Competitive What are we looking for? Mid/Senior level frontend engineer with 5+ years experience in React or Next.js A proactive individual who can take initiative, propose solutions, and drive best practices An excellent communicator who … maintainable code Participate actively in code reviews Mentor and share knowledge with other team members Skills you will need or develop in this role: Proven experience as a React developer building complex, production-ready applications Proficiency in TypeScript, JavaScript(ES6+), HTML5 and CSS Strong understanding of React and its core principles, including Hooks, component lifecycle, and virtual DOM Experience More ❯

Position : Mid/Senior React Developer Type : Permanent Location : Central Croydon - Office based position Reports to : Head of Development Salary : Competitive What are we looking for? Mid/Senior level frontend engineer with 5+ years experience in React or Next.js A proactive individual who can take initiative, propose solutions, and drive best practices An excellent communicator who … maintainable code Participate actively in code reviews Mentor and share knowledge with other team members Skills you will need or develop in this role: Proven experience as a React developer building complex, production-ready applications Proficiency in TypeScript, JavaScript(ES6+), HTML5 and CSS Strong understanding of React and its core principles, including Hooks, component lifecycle, and virtual DOM Experience More ❯

Exciting opportunity for a Senior Endur Developer to join this Global Energy Company for a 6 -12 month initial long term contract. Deep/Complex Greenfield v25 Endur Implementation Experience. *Excellent Day Rates (Umbrella Company) *3 Days in London/2 Day Remote *Gas & Power Trading Knowledge *Commercial Reporting experience *Either: Front & Middle or Back Office Endur experience … Endur implementation, performing a key role from design through to build and delivery. *This will be a great learning and development opportunity for even the most experienced Endur Developers. *Senior Endur Developer that has experience in Endur platform enhancements/implementations and strong Core Java skills. This needs combining with a positive attitude and an ability to work More ❯

Exciting opportunity for a Senior Endur Developer to join this Global Energy Company for a 6 -12 month initial long term contract. Deep/Complex Greenfield v25 Endur Implementation Experience. *Excellent Day Rates (Umbrella Company) *3 Days in London/2 Day Remote *Gas & Power Trading Knowledge *Commercial Reporting experience *Either: Front & Middle or Back Office Endur experience … Endur implementation, performing a key role from design through to build and delivery. *This will be a great learning and development opportunity for even the most experienced Endur Developers. *Senior Endur Developer that has experience in Endur platform enhancements/implementations and strong Core Java skills. This needs combining with a positive attitude and an ability to work More ❯

care services are delivered and managed. Their innovative platform improves communication, efficiency, and care quality for providers, carers, and clients alike. We have an exciting opportunity for a talented Senior Mobile Developer to join their highly skilled engineering team and drive the future of their Carer Companion App. As a Senior Mobile Developer, you will play More ❯

Senior Android Engineer (Apps & SDK – Kotlin, Jetpack) Hybrid | 1 day/week in Central London | UK-based | Permanent A fast-growing, well-funded tech company in Fintech space is looking for a Senior Android Engineer to join their high-impact mobile team. About the Role: They’re looking for a Senior Android Engineer to help shape and More ❯

Senior Android Engineer (Apps & SDK – Kotlin, Jetpack) Hybrid | 1 day/week in Central London | UK-based | Permanent A fast-growing, well-funded tech company in Fintech space is looking for a Senior Android Engineer to join their high-impact mobile team. About the Role: They’re looking for a Senior Android Engineer to help shape and More ❯

Senior Android Engineer (Apps & SDK – Kotlin, Jetpack) Hybrid | 1 day/week in Central London | UK-based | Permanent A fast-growing, well-funded tech company in Fintech space is looking for a Senior Android Engineer to join their high-impact mobile team. About the Role: They’re looking for a Senior Android Engineer to help shape and More ❯

Senior Android Engineer (Apps & SDK – Kotlin, Jetpack) Hybrid | 1 day/week in Central London | UK-based | Permanent A fast-growing, well-funded tech company in Fintech space is looking for a Senior Android Engineer to join their high-impact mobile team. About the Role: They’re looking for a Senior Android Engineer to help shape and More ❯

Senior Backend Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices 💵 £70,000–95,000 base salary + Bonus 📦 Flexible benefits budget | 90 day work-from-anywhere perk 💻 Python, FastAPI, PostgreSQL, DynamoDB, AWS, EKS 📍 Remote first or hybrid (London) InsurTech | Modern, high traffic, scalable microservices development We’ve partnered with a well known name in the insuretech space - one of … and strong engineering leadership, they offer the right mix of scale-up pace, engineering maturity, and long-term growth potential. They're looking for a number of bright, engaging Senior and Lead Software Engineers familiar with or interested in working with their tech stack. Tech stack: Python (FastAPI) | gRPC | GraphQL | PostgreSQL | DynamoDB | AWS | EKS | CI/CD pipelines What … a profitable, product-focused company with ambitions to scale in 2025. You’ll be surrounded by experienced engineers and given the tools to take ownership and grow your career. Senior Backend Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices More ❯

Senior Backend Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices 💵 £70,000–95,000 base salary + Bonus 📦 Flexible benefits budget | 90 day work-from-anywhere perk 💻 Python, FastAPI, PostgreSQL, DynamoDB, AWS, EKS 📍 Remote first or hybrid (London) InsurTech | Modern, high traffic, scalable microservices development We’ve partnered with a well known name in the insuretech space - one of … and strong engineering leadership, they offer the right mix of scale-up pace, engineering maturity, and long-term growth potential. They're looking for a number of bright, engaging Senior and Lead Software Engineers familiar with or interested in working with their tech stack. Tech stack: Python (FastAPI) | gRPC | GraphQL | PostgreSQL | DynamoDB | AWS | EKS | CI/CD pipelines What … a profitable, product-focused company with ambitions to scale in 2025. You’ll be surrounded by experienced engineers and given the tools to take ownership and grow your career. Senior Backend Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices More ❯

Senior Backend Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices 💵 £70,000–95,000 base salary + Bonus 📦 Flexible benefits budget | 90 day work-from-anywhere perk 💻 Python, FastAPI, PostgreSQL, DynamoDB, AWS, EKS 📍 Remote first or hybrid (London) InsurTech | Modern, high traffic, scalable microservices development We’ve partnered with a well known name in the insuretech space - one of … and strong engineering leadership, they offer the right mix of scale-up pace, engineering maturity, and long-term growth potential. They're looking for a number of bright, engaging Senior and Lead Software Engineers familiar with or interested in working with their tech stack. Tech stack: Python (FastAPI) | gRPC | GraphQL | PostgreSQL | DynamoDB | AWS | EKS | CI/CD pipelines What … a profitable, product-focused company with ambitions to scale in 2025. You’ll be surrounded by experienced engineers and given the tools to take ownership and grow your career. Senior Backend Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices More ❯

Senior Backend Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices 💵 £70,000–95,000 base salary + Bonus 📦 Flexible benefits budget | 90 day work-from-anywhere perk 💻 Python, FastAPI, PostgreSQL, DynamoDB, AWS, EKS 📍 Remote first or hybrid (London) InsurTech | Modern, high traffic, scalable microservices development We’ve partnered with a well known name in the insuretech space - one of … and strong engineering leadership, they offer the right mix of scale-up pace, engineering maturity, and long-term growth potential. They're looking for a number of bright, engaging Senior and Lead Software Engineers familiar with or interested in working with their tech stack. Tech stack: Python (FastAPI) | gRPC | GraphQL | PostgreSQL | DynamoDB | AWS | EKS | CI/CD pipelines What … a profitable, product-focused company with ambitions to scale in 2025. You’ll be surrounded by experienced engineers and given the tools to take ownership and grow your career. Senior Backend Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices More ❯

Senior Java Developer - Credit, E-Trading, Algo sought by leading investment bank based in the city of London. Inside IR35 - 4 days on site The role: Project work also includes enhancements to the auto-quoting and algo framework for pricing, offering, and quoting. Will specifically focus on engagement, framework design and development of deliverables for Credit Cash electronic More ❯

Press Tab to Move to Skip to Content Link Select how often (in days) to receive an alert: Title: Senior Consultant Software Developer Requisition ID: 8006 Amey are a leading provider of full life-cycle engineering, operations, and decarbonisation solutions, for transport infrastructure and complex facilities. Working for us, you'll be delivering sustainable infrastructure solutions that enhance … protect our shared future. Our people are driven by a set of strong values, based on safety, insight, and collaboration. The Opportunity We have a fantastic opportunity for a Senior Consultant - Full Stack Developer to join our Digital, Data and Technology Team within our Consulting Business Unit. Amey Consulting is a leading consultancy that drives innovation through data … making, and define a digital strategy that supports our client's vision, transforming and enabling them to become leaders in a rapidly changing technology and data landscape. As a Senior Consultant, you will be aspiring leader within our DDaT team and will work alongside an experienced pool of other software developers, solution architects, product owners, project managers, business analysts More ❯

Role profile:We are seeking a skilled Senior UI Developer with a solid understanding of JavaScript and React to join our dynamic team in the LCH Digital platform. The ideal candidate will have extensive experience of building micro frontends using webpack. Your main responsibility will be to design, implement, and maintain robust and scalable React frontends deployed into More ❯

in Microsoft tech, our solution helps companies deploy intelligent agents, automate workflows, and accelerate innovation at scale. As demand surges for our product, we are currently hiring for a Senior Python Developer with Azure experience and a footing with AI whos ready to move at our speed. If you're passionate about AI, thrive in agile, fast-paced … businesses create and manage powerful automation through models, agents, and reusable templates. Ready to build the future with us? The Role at a Glance: AI/Azure/Python Developer UK Remote Up to £90,000 Benefits include flexible remote work and an environment that values speed, quality, and autonomy. Product/Service: Neologik is an accurate, private & efficient More ❯

in Microsoft tech, our solution helps companies deploy intelligent agents, automate workflows, and accelerate innovation at scale. As demand surges for our product, we are currently hiring for a Senior Python Developer with Azure experience and a footing with AI who s ready to move at our speed. If you're passionate about AI, thrive in agile, fast … businesses create and manage powerful automation through models, agents, and reusable templates. Ready to build the future with us? The Role at a Glance: AI/Azure/Python Developer UK Remote Up to £90,000 Benefits include flexible remote work and an environment that values speed, quality, and autonomy. Product/Service: Neologik is an accurate, private & efficient More ❯

in Microsoft tech, our solution helps companies deploy intelligent agents, automate workflows, and accelerate innovation at scale. As demand surges for our product, we are currently hiring for a Senior Python Developer with Azure experience and a footing with AI who’s ready to move at our speed. If you're passionate about AI, thrive in agile, fast … businesses create and manage powerful automation through models, agents, and reusable templates. Ready to build the future with us? The Role at a Glance: AI/Azure/Python Developer UK Remote Up to £90,000 Benefits include flexible remote work and an environment that values speed, quality, and autonomy. Product/Service: Neologik is an accurate, private & efficient More ❯

Senior Full-Stack .NET Developer – Remote (UK-Based) | £70–75k Are you a confident .NET Developer looking for a fully remote senior role where you can take ownership, work autonomously, and help shape a modern tech stack? We’re hiring for an experienced Full-Stack .NET Developer to join a small, senior development team … pension Supportive, high-trust culture – no micromanagement Flat team structure with real autonomy Interested? Apply now to join a fast-moving business with a meaningful mission and a talented, senior team. More ❯

in Microsoft tech, our solution helps companies deploy intelligent agents, automate workflows, and accelerate innovation at scale. As demand surges for our product, we are currently hiring for a Senior Python Developer with Azure experience and a footing with AI who’s ready to move at our speed. If you're passionate about AI, thrive in agile, fast … businesses create and manage powerful automation through models, agents, and reusable templates. Ready to build the future with us? The Role at a Glance: AI/Azure/Python Developer UK Remote Up to £90,000 Benefits include flexible remote work and an environment that values speed, quality, and autonomy. Product/Service: Neologik is an accurate, private & efficient More ❯

Senior Backend Engineer (Golang) Onsite: Tuesday, Wednesday, Thursday Our client is looking for an experienced Senior Backend Engineer with strong Golang expertise to help shape the systems, processes, and architecture driving their mission. If you’re a hands-on problem solver who thrives in fast-paced, collaborative environments, this is a chance to work on impactful projects while More ❯

I am currently working with a London-based financial services client who are actively seeking a Senior Java Developer to aid in the development of a business-critical application. What you'll need to succeed Extensive development experience with Java 17+ within financial services - mandatory. Expertise in distributed programming with distributed cache/data grids. Strong cloud experience More ❯

Senior C++ Developer - High Frequency Trading, New Office Buildout (London) Overview: Our client is expanding with a new office in London and is seeking the first C++ developers to join this exciting venture. Founded in 2014, they are a quantitative investment firm that has assembled a team of researchers, portfolio managers, and technologists. By leveraging quantitative analysis and More ❯

Senior C++ Developer - High Frequency Trading, New Office Buildout (London) Overview: Our client is expanding with a new office in London and is seeking the first C++ developers to join this exciting venture. Founded in 2014, they are a quantitative investment firm that has assembled a team of researchers, portfolio managers, and technologists. By leveraging quantitative analysis and More ❯