176 to 200 of 348 Senior Software Engineer Jobs in London

Senior Java Developer- London/Hybrid- up to £95k Our client an innovative and light footed fintech startup/scaleup brand are on a mission to revolutionise the credit and lending space. The brand who have now been running for the last 10 years and backed by VC investment are looking to hire a Senior Engineer to … Vaadin or JSF, Wicket, Spring MVC Spring Boot AWS Microservices ML/Big Data- desirable Docker- desirable messaging- GRPC/Solis- desirable Responsibilities: Design and development of low latency software components Contribute across the entire SDLC write and enhance well structured, testable, scalable and efficient code setup and maintain development process tools Collaborate in agile development process meetings, stand … of Vaadin brand new lender platform and payment systems for their customers Building a white label solution or managed service offering Cultural fit: Super collaborative process light and the Senior Engineers are able to introduce ideas and have autonomy to drive change looking for self starters, pragmatic engineers that will be accustomed to working in a start up/ More ❯

Senior Java Developer- London/Hybrid- up to £95k Our client an innovative and light footed fintech startup/scaleup brand are on a mission to revolutionise the credit and lending space. The brand who have now been running for the last 10 years and backed by VC investment are looking to hire a Senior Engineer to … Vaadin or JSF, Wicket, Spring MVC Spring Boot AWS Microservices ML/Big Data- desirable Docker- desirable messaging- GRPC/Solis- desirable Responsibilities: Design and development of low latency software components Contribute across the entire SDLC write and enhance well structured, testable, scalable and efficient code setup and maintain development process tools Collaborate in agile development process meetings, stand … of Vaadin brand new lender platform and payment systems for their customers Building a white label solution or managed service offering Cultural fit: Super collaborative process light and the Senior Engineers are able to introduce ideas and have autonomy to drive change looking for self starters, pragmatic engineers that will be accustomed to working in a start up/ More ❯

Senior Java Developer- London/Hybrid- up to £95k Our client an innovative and light footed fintech startup/scaleup brand are on a mission to revolutionise the credit and lending space. The brand who have now been running for the last 10 years and backed by VC investment are looking to hire a Senior Engineer to … Vaadin or JSF, Wicket, Spring MVC Spring Boot AWS Microservices ML/Big Data- desirable Docker- desirable messaging- GRPC/Solis- desirable Responsibilities: Design and development of low latency software components Contribute across the entire SDLC write and enhance well structured, testable, scalable and efficient code setup and maintain development process tools Collaborate in agile development process meetings, stand … of Vaadin brand new lender platform and payment systems for their customers Building a white label solution or managed service offering Cultural fit: Super collaborative process light and the Senior Engineers are able to introduce ideas and have autonomy to drive change looking for self starters, pragmatic engineers that will be accustomed to working in a start up/ More ❯

Senior Java Developer- London/Hybrid- up to £95k Our client an innovative and light footed fintech startup/scaleup brand are on a mission to revolutionise the credit and lending space. The brand who have now been running for the last 10 years and backed by VC investment are looking to hire a Senior Engineer to … Vaadin or JSF, Wicket, Spring MVC Spring Boot AWS Microservices ML/Big Data- desirable Docker- desirable messaging- GRPC/Solis- desirable Responsibilities: Design and development of low latency software components Contribute across the entire SDLC write and enhance well structured, testable, scalable and efficient code setup and maintain development process tools Collaborate in agile development process meetings, stand … of Vaadin brand new lender platform and payment systems for their customers Building a white label solution or managed service offering Cultural fit: Super collaborative process light and the Senior Engineers are able to introduce ideas and have autonomy to drive change looking for self starters, pragmatic engineers that will be accustomed to working in a start up/ More ❯

Senior Backend Software Engineer - London (Hybrid) | Equity + Competitive Salary Join a fast-growing AI startup transforming a trillion-pound industry through intelligent automation. We're building the next generation of workflow technology - streamlining complex, manual processes and empowering professionals to focus on the work that truly matters. If you love solving deep technical problems, shaping architecture … and seeing your code have a real-world impact, this is a chance to build something meaningful from the ground up. The Role We're looking for a Senior Backend Engineer to take ownership of key backend services that power our AI-driven platform. You'll work closely with product, frontend, and AI teams to design, build, and More ❯

Senior Engineer – Data/Software - London - £90,000 - £130,000 My client are expanding their Data Science & Technology, the team builds the systems and tools that enable trading teams to analyze markets, forecast price movements, and manage risk with speed and precision. If you’re passionate about engineering impactful solutions in a high-performance trading environment, this … days annual leave plus bank holidays Hybrid work model – 3 days per week in the London office Role and Responsibilities Collaborate directly with trading and analytics teams to engineer, optimize, and automate front-office workflows and analytical models. Develop robust Python-based services and APIs using modern frameworks, microservice architectures, and best-practice design principles. Design and maintain tools More ❯

Senior Engineer – Data/Software - London - £90,000 - £130,000 My client are expanding their Data Science & Technology, the team builds the systems and tools that enable trading teams to analyze markets, forecast price movements, and manage risk with speed and precision. If you’re passionate about engineering impactful solutions in a high-performance trading environment, this … days annual leave plus bank holidays Hybrid work model – 3 days per week in the London office Role and Responsibilities Collaborate directly with trading and analytics teams to engineer, optimize, and automate front-office workflows and analytical models. Develop robust Python-based services and APIs using modern frameworks, microservice architectures, and best-practice design principles. Design and maintain tools More ❯

Senior Software Engineer - London - £120k Please note - this role will require you to work from the London based office three days per week. You must have the unrestricted right to work in the UK to be eligible for this role - this organisation is not able to offer sponsorship. Are you passionate about building cutting-edge technology solutions … building out our new front-end analytics platform, delivering intuitive, high-performance tools that empower users with real-time insights and advanced visualization capabilities. Collaborate with commercial teams to engineer and optimize processes and analytical models. Build and maintain Python-based services and APIs using modern frameworks and best practices. Develop solutions for data modeling, market analysis, and position More ❯

Senior Software Engineer - London - £120k Please note - this role will require you to work from the London based office three days per week. You must have the unrestricted right to work in the UK to be eligible for this role - this organisation is not able to offer sponsorship. Are you passionate about building cutting-edge technology solutions … building out our new front-end analytics platform, delivering intuitive, high-performance tools that empower users with real-time insights and advanced visualization capabilities. Collaborate with commercial teams to engineer and optimize processes and analytical models. Build and maintain Python-based services and APIs using modern frameworks and best practices. Develop solutions for data modeling, market analysis, and position More ❯

Job Role: Senior Software Engineer, Frontend Job Type: Full Time, Permanent Location: London, Hybrid (3 office days a week) Role purpose As a valued member of our engineering team, you will contribute to the development of our new web application, powered by a Headless CMS, using the latest frontend technologies. Working with a modern Next.js TypeScript stack … Exposure to backend or full-stack development (Node.js, Express, etc.) Developing white-label applications Building internationalised applications Familiarity with frontend observability best practices (we use Datadog) Experience in agile software development methodologies Why Travelex? To remain the world’s leading foreign exchange specialist, we are focused on making our customers’ lives simpler, more engaging and hassle free while they More ❯

Job Role: Senior Software Engineer, Frontend Job Type: Full Time, Permanent Location: London, Hybrid (3 office days a week) Role purpose As a valued member of our engineering team, you will contribute to the development of our new web application, powered by a Headless CMS, using the latest frontend technologies. Working with a modern Next.js TypeScript stack … Exposure to backend or full-stack development (Node.js, Express, etc.) Developing white-label applications Building internationalised applications Familiarity with frontend observability best practices (we use Datadog) Experience in agile software development methodologies Why Travelex? To remain the world’s leading foreign exchange specialist, we are focused on making our customers’ lives simpler, more engaging and hassle free while they More ❯

Job Role: Senior Software Engineer, Frontend Job Type: Full Time, Permanent Location: London, Hybrid (3 office days a week) Role purpose As a valued member of our engineering team, you will contribute to the development of our new web application, powered by a Headless CMS, using the latest frontend technologies. Working with a modern Next.js TypeScript stack … Exposure to backend or full-stack development (Node.js, Express, etc.) Developing white-label applications Building internationalised applications Familiarity with frontend observability best practices (we use Datadog) Experience in agile software development methodologies Why Travelex? To remain the world’s leading foreign exchange specialist, we are focused on making our customers’ lives simpler, more engaging and hassle free while they More ❯

Job Role: Senior Software Engineer, Frontend Job Type: Full Time, Permanent Location: London, Hybrid (3 office days a week) Role purpose As a valued member of our engineering team, you will contribute to the development of our new web application, powered by a Headless CMS, using the latest frontend technologies. Working with a modern Next.js TypeScript stack … Exposure to backend or full-stack development (Node.js, Express, etc.) Developing white-label applications Building internationalised applications Familiarity with frontend observability best practices (we use Datadog) Experience in agile software development methodologies Why Travelex? To remain the world’s leading foreign exchange specialist, we are focused on making our customers’ lives simpler, more engaging and hassle free while they More ❯

than 2,100 talented individuals. With a continued record of growth and stability, we're on the constant lookout for fresh talent to join our expanding teams. As a Senior Software Engineer you will play an important role in supporting key strategic initiatives for our Advanced Analytics and Digital Products business component. Designing and developing technical solutions … opportunities you'd expect from an Industry Leader. Schedule: Full-time position with standard working hours of Monday Friday, standard business hours Primary Responsibilities: Work as a Full Stack Engineer to design, code, build and test software solutions in DevOps scrum environment Lead team efforts to achieve timely resolution to all production issues Apply design patterns to best … practices to software development Rapid prototyping within an Agile methodology Contributing to the applications technology stack and driving progressive solutions to complex problems Working with technical and strategic product to create world class products Implementing complex code based on guidance provided by lead engineer on initiative(s) Pro-actively identifies and addresses security gaps in solution design and More ❯

of the most challenging and rewarding experiences a career can offer. If that sounds exciting to you, you're in the right place. The role We're looking for senior software engineers to join our Web App engineering team. You'll have the opportunity to lead implementations across our entire product stack, with a focus on your area … you to contribute to every phase of the development cycle, from planning and architecting, to implementation and testing, to code review and maintenance. Requirements 4+ years experience as a software engineer Ability to make senior level contributions writing in TypeScript React PostgreSQL Bonus points for experience in high velocity and technically challenging roles Our tech stack Frontend … team and a business that is rapidly growing - creating high impact engineering opportunities that come with a lot of variety. It's also a great place to be an engineer - we have technical co-founders who know first hand the importance of creating space and focus for engineering teams to do their best work. Our core benchmarking product is More ❯

Location London Hybrid 1-2 days a week in the office eligibility to work in the UK Role Overview We are seeking a skilled Senior Developer to join a newly formed engineering team focused on removing legacy components and addressing technical debt within our Media Services products. This role will involve working closely with stakeholders to understand system requirements … component migrations. A proactive and detail-oriented approach will be vital to ensure smooth transitions from legacy systems to scalable, reliable, and future-proof solutions. In addition, experience with software testing practices, Agile methodologies (Scrum or Kanban), and defensive programming techniques will be highly desirable. We are looking for someone who thrives in collaborative, fast-paced teams, who can … Go programming experience Agile/Scrum experience Load Balancer experience Defensive programming techniques Tools and Technology Java Jira AWS TDD CI/CD Experience A degree in Computer Science, Software Engineering, or a related field or similar work based experience. Proven experience as a Senior Software Engineer ideally with a focus on media-related projects. Very More ❯

data science, algorithmic precision, and intuitive design, we develop cutting-edge tools that enable users to analyze, interpret, and act on market dynamics with confidence. Your role As a Senior Software Engineer in the Product Engineering team you will build and evolve a data and content dissemination platform (Web, App, APIs, messaging) and corresponding data pipelines, ensuring … direct contact with business and technical stakeholders Work with product management to analyze and improve our business processes Conduct workload and complexity assessments Design, plan and implement new efficient software solutions in Python and Go Maintain and enhance our Airflow data pipelines Improve observability and scalability to support our constantly growing client base Continuously adapt to changing requirements in … Build and extend knowledge of financial instruments Minimum qualifications B.Sc. in Computer Science or similar field involving coding (e.g. physics or applied mathematics) Algorithms, data structures, complexity analysis and software design Hands-on senior level experience in Python programming Unix based systems, containerized environments and Kubernetes Working experience with databases: relational, NoSQL and time series Websocket, REST API More ❯

data science, algorithmic precision, and intuitive design, we develop cutting-edge tools that enable users to analyze, interpret, and act on market dynamics with confidence. Your role As a Senior Software Engineer in the Product Engineering team you will build and evolve a data and content dissemination platform (Web, App, APIs, messaging) and corresponding data pipelines, ensuring … direct contact with business and technical stakeholders Work with product management to analyze and improve our business processes Conduct workload and complexity assessments Design, plan and implement new efficient software solutions in Python and Go Maintain and enhance our Airflow data pipelines Improve observability and scalability to support our constantly growing client base Continuously adapt to changing requirements in … Build and extend knowledge of financial instruments Minimum qualifications B.Sc. in Computer Science or similar field involving coding (e.g. physics or applied mathematics) Algorithms, data structures, complexity analysis and software design Hands-on senior level experience in Python programming Unix based systems, containerized environments and Kubernetes Working experience with databases: relational, NoSQL and time series Websocket, REST API More ❯

data science, algorithmic precision, and intuitive design, we develop cutting-edge tools that enable users to analyze, interpret, and act on market dynamics with confidence. Your role As a Senior Software Engineer in the Product Engineering team you will build and evolve a data and content dissemination platform (Web, App, APIs, messaging) and corresponding data pipelines, ensuring … direct contact with business and technical stakeholders Work with product management to analyze and improve our business processes Conduct workload and complexity assessments Design, plan and implement new efficient software solutions in Python and Go Maintain and enhance our Airflow data pipelines Improve observability and scalability to support our constantly growing client base Continuously adapt to changing requirements in … Build and extend knowledge of financial instruments Minimum qualifications B.Sc. in Computer Science or similar field involving coding (e.g. physics or applied mathematics) Algorithms, data structures, complexity analysis and software design Hands-on senior level experience in Python programming Unix based systems, containerized environments and Kubernetes Working experience with databases: relational, NoSQL and time series Websocket, REST API More ❯

data science, algorithmic precision, and intuitive design, we develop cutting-edge tools that enable users to analyze, interpret, and act on market dynamics with confidence. Your role As a Senior Software Engineer in the Product Engineering team you will build and evolve a data and content dissemination platform (Web, App, APIs, messaging) and corresponding data pipelines, ensuring … direct contact with business and technical stakeholders Work with product management to analyze and improve our business processes Conduct workload and complexity assessments Design, plan and implement new efficient software solutions in Python and Go Maintain and enhance our Airflow data pipelines Improve observability and scalability to support our constantly growing client base Continuously adapt to changing requirements in … Build and extend knowledge of financial instruments Minimum qualifications B.Sc. in Computer Science or similar field involving coding (e.g. physics or applied mathematics) Algorithms, data structures, complexity analysis and software design Hands-on senior level experience in Python programming Unix based systems, containerized environments and Kubernetes Working experience with databases: relational, NoSQL and time series Websocket, REST API More ❯

brilliant time to join our business. We are on an exciting growth journey to become the UK's most loved retirement expert. The Role We're looking for a Senior Software Engineer to join one of our multidisciplinary, cross-functional, lean delivery squads, focused on rapidly delivering value to our customers through our mobile app and website. … right way. You will lead by example; getting your hands dirty in the code, inspiring your peers & helping to educate your stakeholders. You are passionate about the craft of software development and contribute to technical and non-technical discussions that help shape the direction of digital product delivery. You are able to work independently, as well as collaboratively, on … user stories within an agile delivery environment and are versed in modern software delivery practices. You care about creating quality software that delivers value to consumers, in a thoughtfully pragmatic way. As well as contributing to production-grade code bases, you will also be keen to help shape the vision for the product, happy to mentor and upskill More ❯

Join us as a Senior Software Engineer for CIAM at Barclays, where you will bring to life a new digital platform capability, transforming and modernising our digital estate to build a market-leading digital offering with customer experience at its heart. This is an exciting and key role, partnering with business aligned engineering and product teams, to … ensure a collaborative team culture is at the heart of what we do. To be successful in this role you should have: Strong hands-on IAM engineer background with broad expertise across the IAM domain, including tooling, products, protocols, taxonomy, identity management, authentication, authorization and identity federation. Expertise with single sign on, OAuth2, OIDC, PKI, PSD2 SCA knowledge and … digital and technology, as well as job-specific technical skills. This role will be based out of our London office. Purpose of the role To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues. Accountabilities Development and delivery of high-quality software solutions by using industry More ❯

Senior C++ Software Engineer Salary: £100,000 – £135,000 Key Responsibilities Design, develop, and optimize software in C++ and/or Rust for control and orchestration systems. Build low-latency interfaces between hardware and classical compute systems. Collaborate with hardware teams to integrate software with FPGAs and high-speed digital electronics. Develop and maintain firmware … platforms. Analyze and optimize system performance including latency, throughput, and resource utilization. Participate in system architecture design and technical decision-making. Conduct code reviews , mentor junior engineers, and promote software best practices. Work with cross-functional teams to ensure seamless integration of hardware and software components for robust, production-ready systems. Ensure system reliability , fault tolerance , and performance … in data centre environments. Required Qualifications Bachelor’s or Master’s degree in Computer Engineering , Electrical Engineering , Physics , or a related field. 5+ years of professional experience in software development, with a focus on C++ and/or Rust . Strong understanding of FPGA architectures , toolchains (e.g., Xilinx Vivado, Intel Quartus), and hardware description languages ( VHDL/Verilog ). More ❯

Senior C++ Software Engineer Salary: £75,000 - £135,000 Key Responsibilities Design, develop, and optimize software in C++ and/or Rust for control and orchestration systems. Build low-latency interfaces between hardware and classical compute systems. Collaborate with hardware teams to integrate software with FPGAs and high-speed digital electronics. Develop and maintain firmware … platforms. Analyze and optimize system performance including latency, throughput, and resource utilization. Participate in system architecture design and technical decision-making. Conduct code reviews , mentor junior engineers, and promote software best practices. Work with cross-functional teams to ensure seamless integration of hardware and software components for robust, production-ready systems. Ensure system reliability , fault tolerance , and performance … in data centre environments. Required Qualifications Bachelor's or Master's degree in Computer Engineering , Electrical Engineering , Physics , or a related field. 5+ years of professional experience in software development, with a focus on C++ and/or Rust . Strong understanding of FPGA architectures , toolchains (e.g., Xilinx Vivado, Intel Quartus), and hardware description languages ( VHDL/Verilog ). More ❯

Senior C++ Software Engineer Salary: £100,000 – £135,000 Key Responsibilities Design, develop, and optimize software in C++ and/or Rust for control and orchestration systems. Build low-latency interfaces between hardware and classical compute systems. Collaborate with hardware teams to integrate software with FPGAs and high-speed digital electronics. Develop and maintain firmware … platforms. Analyze and optimize system performance including latency, throughput, and resource utilization. Participate in system architecture design and technical decision-making. Conduct code reviews , mentor junior engineers, and promote software best practices. Work with cross-functional teams to ensure seamless integration of hardware and software components for robust, production-ready systems. Ensure system reliability , fault tolerance , and performance … in data centre environments. Required Qualifications Bachelor’s or Master’s degree in Computer Engineering , Electrical Engineering , Physics , or a related field. 5+ years of professional experience in software development, with a focus on C++ and/or Rust . Strong understanding of FPGA architectures , toolchains (e.g., Xilinx Vivado, Intel Quartus), and hardware description languages ( VHDL/Verilog ). More ❯