1 to 25 of 36 Permanent Senior Full-Stack Software Engineer Jobs in London

dual headquarters in London and New York, Fitch Group is owned by Hearst. Senior Software Engineer, Full-Stack Applications – Ratings TechnologyFitch Ratings is seeking a Senior Software Engineer to join our global Ratings Technology … both innovation and work-life harmonyWe'll Count on You To: Deliver technical excellence and build game-changing solutions – Design robust, scalable full-stack applications using Java/Springboot, C#/.NET, Python and REACT, drive architectural decisions, establish technical standards, and lead exploration ...

role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Senior Software Engineer, Full Stack - New VerticalsJoin us in our mission to transform the way people shop … partners to pick the correct items swiftly while keeping inventory data current, optimizing both efficiency and accuracy. We're looking for a Senior Software Engineer - Full Stack to join our London team. In this role, you’ll help us build ...

higher-value marketing work and making the wider CMS operation more scalable and manageable. As a Senior Full Stack Software Engineer, you’ll support the Principal Engineer … exploring proof of concepts (POCs), rapid prototyping and deep diving into agentic and workflow opportunities. You’ll bring proven senior full-stack experience across modern web technologies, cloud infrastructure and APIs, while helping shape practical ways to use AI across the platform. What ...

Senior Full Stack Software Engineer £100,000–£110,000 + benefits UK-based | Hybrid – London 2 days per week Certus Recruitment is working with an ambitious UK fintech building a regulated stablecoin and digital payments platform. We are looking … Senior Software Engineer to join at an early stage and help build the application, financial infrastructure and settlement technology behind the platform. This is a highly hands-on role, working closely with the Head of Engineering across back-end services, core systems and customer ...

Senior Full-Stack Software Engineer, (Forward Deployed), GPS London, UK Ready to Apply? Join the team shaping the future of AI at Scale. Scale’s rapidly growing Global Public Sector team is focused on using AI to address critical challenges … Stack Software Engineer (Forward Deployed), you’ll collaborate directly with public sector counterparts to quickly build full-stack, AI applications, to solve their most pressing challenges and achieve meaningful impact for citizens. At Scale, we’re not just building ...

About The Role Job Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture … development, and improvement of software systems. This role involves mentoring junior engineers, collaborating with cross-functional teams, and driving the adoption of best practices in software development. Responsibilities Design, develop, and maintain complex software solutions, ensuring they are robust, secure, tested and scalable. Contribute ...

continuing to grow our engineering capability to support this ambition. We are looking for a Full-Stack Senior Software Engineer to join our cross-functional Biosamples squad . You’ll help design, build and run the systems that support … tech-stack includes Typescript/Node.js, PostgreSQL, Terraform (IaC), running in Azure (Kubernetes and Azure AppService) . Our engineers are full-stack , handling frontend, backend and infrastructure in a total ownership model - squads build and run it. If you are passionate about your work ...

Online Filings is seeking a Senior Software Engineer to architect and develop our next-generation web application and API. This role requires technical leadership, hands‐on development, and mentoring of junior developers to ensure scalability, security and performance. If you are passionate about software ...

Portfolio Credit Control is seeking a Senior Software Engineer to own the application and integration layer for a new generation of AI-powered products. The role spans backend, API design, MCP integration and frontend development with React and TypeScript. You will design scalable REST ...

chance to do it on a global scale and play a real role in shaping our exciting journey. The role As a Senior Software Engineer, you will … hands-on member of a high-performing engineering squad, building and operating business-critical digital services. This is a backend-led full-stack role. You will use Kotlin or modern Java, ideally Java 17 or later, together with the wider JVM ecosystem, to develop reliable services ...

kind, talented people on a mission to change the insurance industry for good. About the role We’re looking for an enthusiastic Senior Software Engineer (Full Stack) to join our fast-growing Engineering team! You’ll hit the ground running … exceptional at what they do, whilst being kind, honest people who champion our values. A dedicated development budget, access to a senior mentor, and training on whatever you need to do your job well. Well-being support. We’re committed to supporting both physical and mental well-being ...

magical time to join. Who we're looking for We're looking for a talented, high-quality full-stack engineer to join our team. We care about how well you build software, how you work within a team, and how fast … over a partial match even when they'd do the job well. If you're a strong full-stack engineer keen to learn, we'd rather hear from you than not, and we're happy to talk about whether a different role or level ...

About The Role Job Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture … development, and improvement of software systems click apply for full job details ...

delivering real-time Language AI to over 300 million users and 200,000+ businesses globally. We are shifting gears. We are moving from "Software-First" to "Product-First." We don't hire engineers to just close tickets or optimize algorithms in isolation. We hire Missionaries—builders who obsess … over the Why before the How. As a Senior Engineer at DeepL, you will operate with the agency of a founder. You will join a high-performance engineering culture that values shipping speed, system reliability, and direct business impact over theoretical perfection, whether you are building ...

Stack Software Engineer (Forward Deployed), you'll collaborate directly with public sector counterparts to quickly build full-stack, AI applications, to solve their most pressing challenges and achieve meaningful impact for citizens. At Scale, we're not just building … public sector clients to scope, collect feedback and implement solutions for complex problems. Architect production-grade applications that integrate AI models with full-stack frameworks, managing everything from interactive UIs to backend APIs and systems. Deploy and manage infrastructure within cloud environments, ensuring the highest levels ...

Senior Full Stack Engineer85,000 to 105,000PermanentRemote, with occasional London office visitsThe opportunityOur client is hiring a Senior Full Stack Engineer to take ownership of building the next generation of customer-facing software … well and are pleased to be supporting them again on this important hire. This is a genuinely high-impact opportunity for an experienced engineer who is equally comfortable across frontend and backend development. You will take the lead on building new products and developing the codebase, with significant ...

client is a global investment management company. Job Title Senior Full Stack Software Engineer The Role Our client, one of the world's largest investment management companies, serves individual investors, institutions, employer-sponsored retirement plans, and financial professionals. We have … along with an unwavering focus on serving our clients' best interests. We are seeking a highly experienced Senior Full Stack Engineer to contribute to the design, development and optimisation of front office applications within the GIFS team. This role works closely with ...

Role Vanguard, one of the world's largest investment management companies, serves individual investors, Job Title Senior Full Stack Software Engineer The Role Vanguard, one of the world's largest investment management companies, serves individual investors, institutions, employer-sponsored retirement … along with an unwavering focus on serving our clients' best interests. We are seeking a highly experienced Senior Full Stack Engineer to contribute to the design, development and optimisation of front office applications within the GIFS team. This role works closely with ...

world's money. For everyone, everywhere. More about our mission and what we offer. Job DescriptionAbout the role: Join us as a Senior Full-Stack Engineer in our critical Account Integrity team. This is a high-impact engineering role with a strong … ownership of projects focused on: Building and refining critical controls to protect Wise customers accounts from account takeovers. Working in a full-stack capacity - with Product & Design to design convenient, customer-facing controls & working with data scientists and data analysts to improve our detection capabilitiesYou will ...

world's money. For everyone, everywhere. More about our mission and what we offer . About the role: Join us as a Senior Full-Stack Engineer in our critical Account Integrity team. This is a high-impact engineering role with a strong … ownership of projects focused on: Building and refining critical controls to protect Wise customers accounts from account takeovers. Working in a full-stack capacity - with Product & Design to design convenient, customer-facing controls & working with data scientists and data analysts to improve our detection capabilities ...

thoughtfully rather than rewriting it, and being trusted to deliver without heavy supervision, this role will feel unusually well-matched. The role As Senior Fullstack Software Engineer, you will help design, build and maintain the production systems that power Outsmart’s platform. … systems that matter. The environment We are a small, intellectually serious company. That has advantages and responsibilities. You will: Speak directly with senior decision‐makers when needed Operate without perfect documentation Balance speed with long‐term maintainability This role suits someone comfortable with autonomy, accountability and cross‐functional ...

What we do. Electric Car Leasing Why we do it. Greener. Fairer. Future. We're looking for a Senior Fullstack Software Engineer (Python and React) to join our product and engineering team building the systems that power our ability to revolutionize the electric ...

Senior Full Stack Software Engineer at Cabiri, you will play a crucial role in designing, developing, and maintaining our software solutions. You will work collaboratively with cross‐functional teams, utilizing your expertise in both front‐end and back … Quality Assurance Conduct thorough code reviews to maintain code quality and ensure adherence to coding standards. Implement and advocate for best practices in software development. Problem Solving Troubleshoot and debug issues, ensuring timely resolution. Proactively identify and address potential challenges in the development process. Qualifications Extensive experience with ...

proud to set the gold-standard for marrying technical excellence with safe deployment. About the roleAs a Senior Full Stack Software Engineer, you will be a technical anchor within our Professional & Financial Services team, leading the development of sophisticated platforms … like Docker, Kubernetes, or Terraform, to ensure reliable software delivery. You are an expert problem-solver who can debug complex, full-stack issues and maintain high standards for testing using frameworks like Jest or Cypress. You thrive on autonomy and ownership, with the entrepreneurial ...

role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Senior Fullstack Engineer (Go/Kotlin & React) About the Team Merchant EMEA Engineering builds the technology that helps merchants join, grow, and operate … currently unable to offer fully remote work, visa sponsorship, or relocation support for this opportunity. What You'll Do As a Fullstack Engineer, you'll contribute to products and services used across the merchant experience.You'll: Build and maintain production software across backend services and user ...