16 of 16 Senior Full-Stack Software Engineer Jobs in London

Senior Full Stack Software Engineer - FX Pricing (React, Typescript, Java, API) - London (VP) Overview Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. We provide consumers, corporations, governments, and institutions with a broad range … financial objectives by providing them with cutting-edge ideas, best-in-class products and solutions, and unparalleled access to capital and liquidity. The role We are seeking a Senior Applications Developer to join a successful team delivering pricing projects for the Foreign Exchange (FX) Business. The role involves all aspects of the software development life cycle … analysis, design and implementation. We need a flexible and practical technologist who demonstrates excellent problem solving skills enjoys all aspects of software development and will contribute to the success of the team. Your deep knowledge of design, analytics, development, coding, testing and application programming will help your team raise their game, meeting your standards, as well as satisfying More ❯

Role: We are seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development, to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led engineering teams, and has built … with quant researchers, traders, and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and Git-based workflows. Own deployment … tools and external integrations. Work with data at scale (market data ingestion, real-time analytics, historical storage). Required Skills & Experience: Core Engineering: 5+ years of experience in software development, with exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with More ❯

Role: We are seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development, to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led engineering teams, and has built … with quant researchers, traders, and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and Git-based workflows. Own deployment … tools and external integrations. Work with data at scale (market data ingestion, real-time analytics, historical storage). Required Skills & Experience: Core Engineering: 5+ years of experience in software development, with exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with More ❯

using its central role in the Fintech ecosystem to identify and back revolutionary new businesses. The role Our Tech Team at Fasanara is looking to bring onboard a senior Full-Stack Engineer who will be essential in expanding the capabilities across our investment tools, working on several Greenfield projects. You'll have … the opportunity to partner across multiple business areas building scalable innovative solutions. This role would suit an ambitious, seasoned engineer who wants to be part of an expanding engineering team having a big impact. Responsibilities Design and develop scalable, high-performance internal platforms and applications for core business functions including Credit Trading, FX Hedging … Portfolio Monitoring, and Treasury. Collaborate cross-functionally with investment, operations, and data teams to translate complex business workflows into efficient, maintainable software solutions. Drive the full software development lifecycle - from technical design and implementation to testing, deployment, and production monitoring. Contribute across the stack, including backend services, frontend interfaces, and data engineering More ❯

Senior Software Engineer/Developer (Full Stack JavaScript) London to £100k Opportunity to progress your career in a senior, hands-on Software Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and … years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Software Engineer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help … development practices, tools and technologies You enjoy learning and picking up new things You're flexible and able to adapt to changing priorities You have full software development lifecycle experience including CI/CD and testing You're collaborative with Agile team experience, happy to mentor more junior developers You're likely to be degree educated More ❯

Senior Software Engineer/Developer (Full Stack JavaScript) London to £100k Opportunity to progress your career in a senior, hands-on Software Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and … years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Software Engineer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help … development practices, tools and technologies You enjoy learning and picking up new things You're flexible and able to adapt to changing priorities You have full software development lifecycle experience including CI/CD and testing You're collaborative with Agile team experience, happy to mentor more junior developers You're likely to be degree educated More ❯

Urgent! x8 Fullstack Senior Software Engineers/Tech leads Needed – UK-based – – Rapid Growth – Fully Remote Areti Group is excited to partner with a Series funded startup poised for rapid expansion, growing by 40 heads in the next 3 months! We are urgently seeking x8 Fullstack Tech leads to join their high-performing team. This fully … Amazon Web Services (AWS) Databases: PostgreSQL, DynamoDB Additional Tools & Frameworks: GraphQL REST APIs Software Design Patterns – TDD, DDD Agile methodologies: Scrum and Kanban Key Responsibilities: Full-Stack Development: Design, develop, and maintain complex full-stack applications across both front-end and back-end. Cloud & Database Management: Build scalable, cloud-based … solutions using AWS, PostgreSQL, and DynamoDB. API Development: Integrate RESTful APIs and GraphQL to enable smooth data flow between services. Software Design Patterns: Apply TDD (Test Driven Development) and DDD (Domain Driven Design) best practices to ensure maintainable, efficient code. DevOps & CI/CD: Use DevOps processes, including virtualization, containerization, and CI/CD pipelines to streamline development More ❯

Urgent! x8 Fullstack Senior Software Engineers/Tech leads Needed – UK-based – – Rapid Growth – Fully Remote Areti Group is excited to partner with a Series funded startup poised for rapid expansion, growing by 40 heads in the next 3 months! We are urgently seeking x8 Fullstack Tech leads to join their high-performing team. This fully … Amazon Web Services (AWS) Databases: PostgreSQL, DynamoDB Additional Tools & Frameworks: GraphQL REST APIs Software Design Patterns – TDD, DDD Agile methodologies: Scrum and Kanban Key Responsibilities: Full-Stack Development: Design, develop, and maintain complex full-stack applications across both front-end and back-end. Cloud & Database Management: Build scalable, cloud-based … solutions using AWS, PostgreSQL, and DynamoDB. API Development: Integrate RESTful APIs and GraphQL to enable smooth data flow between services. Software Design Patterns: Apply TDD (Test Driven Development) and DDD (Domain Driven Design) best practices to ensure maintainable, efficient code. DevOps & CI/CD: Use DevOps processes, including virtualization, containerization, and CI/CD pipelines to streamline development More ❯

grow our team, representing one of the five largest Series A rounds in Europe for 2024. The Role We're hiring a Senior Full Stack Engineer to help to build our platform, sites, and suite of AI products. Reporting to engineering leadership, you'll be a highly experienced member of the product … AI to directly improve people's lives. We take a blue-sky but pragmatic approach to how we apply new technologies. Our Tech Stack TypeScript (Full-stack) React + Next.js, Tailwind, Prisma, tRPC PostgreSQL, MongoDB, Redis Serverless, AWS, Google Cloud, Github Actions DBT, BigQuery Terraform Python Requirements You're opinionated and want to help … ambitious, capable of learning and adapting quickly You have deep understanding of our tech stack having built modern apps using best practices You've been a senior contributor in a high output engineering team and have experience moving fast (Kanban, CI/CD, DevOps, Serverless) You have worked in product teams alongside product managers and designers More ❯

About us Hi, we're Humaans! We help globally scaling organisations transform their HR processes with a human-centric approach. At Humaans, we want to empower People teams to create a customisable HR stack by offering flexibility and More ❯

Social network you want to login/join with: Software Engineer, Full Stack (Senior), London col-narrow-left Client: Runna Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 4751b9357d64 Job Views: 12 Posted: 22.06.2025 Expiry Date: 06.08.2025 col-wide Job Description … . You will work closely with our founders and CTO to help shape the future of Runna, who will support you all along this exciting journey. As a Software Engineer, your role will include: Architect, build, test and deliver new features across the full stack Work with the Product team to identify … supporting Enthusiasm for our ways of working which include: Iterative development, continuous deployment and test automation Shared code ownership & cross-functional teams Are experienced in delivering features full-stack Are experienced in Python or SwiftUI Are experienced in deployment, releasing cycles or CI/CD Have experience with React Native (worked on large scale applications) Have More ❯

Senior Software Engineer (Full Stack, React, Node.js) is required for a fast-growing Renewables scale-up that is revolutionising the way energy is used and managed across the UK. Turning a very archaic and labour intensive industry into a digital experience for the likes of EV Charging points, Solar panels … and supply chain teams. This means their platform is currently at the crossroads of innovation and sustainability and supercharging the best distribution service in the nation. As a Senior Software Engineer (Full Stack, React, Node.js) you will work on developing their Web Applications. This includes building and optimising APIs, ensuring … volumes of data and maintaining high performance and security. This includes taking part in stakeholder conversations and promoting best practices like TDD, BDD and CI/CD. This Senior Software Engineer (Full Stack, React, Node.js) role is paying up to £120,000 This is a hybrid role with one day More ❯

Senior Software Engineer (Full Stack, React, Node.js) is required for a fast-growing Renewables scale-up that is revolutionising the way energy is used and managed across the UK. Turning a very archaic and labour intensive industry into a digital experience for the likes of EV Charging points, Solar panels … and supply chain teams. This means their platform is currently at the crossroads of innovation and sustainability and supercharging the best distribution service in the nation. As a Senior Software Engineer (Full Stack, React, Node.js) you will work on developing their Web Applications. This includes building and optimising APIs, ensuring … volumes of data and maintaining high performance and security. This includes taking part in stakeholder conversations and promoting best practices like TDD, BDD and CI/CD. This Senior Software Engineer (Full Stack, React, Node.js) role is paying up to £120,000 This is a hybrid role with one day More ❯

Senior Software Engineer (Fullstack, Frontend Leaning) London, United Kingdom The Team & Role SevenRooms is hiring a remote Senior Fullstack Engineer (frontend leaning) . We're looking for a strong developer who is excited to engineer highly performant, mission-critical systems that are designed for agile development and rapid … Python, Typescript, ReactJS, Redux, Django, App Engine, CloudFirestore, Memcache, Cloud Tasks, Firebase, BigQuery, Elasticsearch, and more What You'll Do Engineering: Design, develop, test, deploy, maintain and improve software with a strong focus on customer-facing features Product Focus: Be the technical owner of features, from design to implementation to ongoing support Project Management: Manage individual project priorities … deadlines, code quality and deliverables; Participate in occasional on-call duties to keep software systems up and running Who You Are BS degree in Computer Science, similar technical field of study or equivalent professional experience Experience with algorithms, data structures, complexity analysis and software design 4+ years of software engineering experience Experience with Python More ❯

role participates in the technical delivery of projects to build our solution and products, and operate the services that they depend on. You'll work on our cloud software applications that work in conjunction with our large fleet of remotely managed devices. As a Senior level Software Engineer you'll be working … colleagues with exposure to the full product & service lifecycle from specification & architecture through to release & operation. You'll work with the team to deliver high quality software and solutions which provide an acceptable service uptime to our clients, and you'll be closely involved with real world applications with a large user base, where necessary helping … out to investigate and fix issues that occur with our production software - because we believe that operational experience is a great way to learn how to build systems that are easy to operate. You'll work in our Product & Engineering team of 10 and participate in the definition of our solution architecture, then take responsibility for applications and More ❯

supportive engineering culture as you learn more, and grow your career, within Bloom & Wild Engineering. You'll love this role if you Have demonstrated experience as a Full-Stack Developer with a track record of successfully developing and deploying web applications. Have a minimum of 5 years of relevant experience in full-stack More ❯