9 of 9 Permanent Senior Software Engineer Jobs in West End of London

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 remote role … tech. Languages : 🌳 Ruby-on-Rails, Java, Python, C#, PHP 🌳 VueJs, Typescript/Angular/React Cloud : 🌳 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 More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving complex problems in … the FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring other engineers Building greenfield features that … Scala , etc - Even more for code examples! Proven ability to lead projects (and teams) in fast-paced, innovative environments Strong decision-making skills and a passion for building great software Experience in FinTech or AI is a HUGE plus The Culture: They live and breathe technology and engineering excellence Agile, innovative, and always pushing boundaries Remote-first — always have More ❯

I’m supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! This is a seriously tech-driven product company that puts a huge emphasis on engineering excellence , innovation , and building something that genuinely helps users . They’re solving complex problems in … the FinTech + AI space, and as a Senior Software Engineer, you’ll play a key role in shaping the product and the tech behind it. You’ll work closely with the CTO and be deeply involved in: Defining architecture and making key technical decisions Leading on project delivery and mentoring other engineers Building greenfield features that … Scala , etc - Even more for code examples! Proven ability to lead projects (and teams) in fast-paced, innovative environments Strong decision-making skills and a passion for building great software Experience in FinTech or AI is a HUGE plus The Culture: They live and breathe technology and engineering excellence Agile, innovative, and always pushing boundaries Remote-first — always have More ❯

About the projects: We are building LLM evaluation and training datasets to train LLM to work on realistic software engineering problems. One of our approaches, in this project, is to build verifiable SWE tasks based on public repository histories in a synthetic approach with human-in-the-loop; while expanding the dataset coverage to different types of tasks in … terms of programming language, difficulty level, and etc. About the Role: We are looking for experienced software engineers (tech lead level) who are familiar with high-quality public GitHub repositories and can contribute to this project. You should have experience working with well-maintained, widely-used repos with 500+ stars. This role involves hands-on software engineering work … accelerating the advancement and deployment of powerful AI systems. You’ll be at the forefront of evaluating how LLMs interact with real code, influencing the future of AI-assisted software development. This is a unique opportunity to blend practical software engineering with AI research. What does day-to-day look like: Analyze and triage GitHub issues across trending More ❯

X20 Senior Software Engineers Needed – Tech Start Up – Fully Remote - GO, Golang, PHP, GraphQL, GRPC, AWS, API, Microservices, Next.JS, React - Offices based in London but all roles are fully remote 🌳🌳🌳 Areti has partnered with a rapidly growing tech-led organization who are seeking multiple Software Engineers ranging from junior to senior and looking to grow their … team by a further 20 Software Engineers this year. They are one of the most exciting START-UPS in the UK! As a Software Engineer, you will enjoy working on a variety of interesting and challenging projects and can work with various programming languages. On the other hand, if you are happy working in your niche and … the software languages you are most comfortable with then this is fine also. Culture, Fun, and self-development are words often heard in this organization so if you are a software engineer looking for a company with clear career and development opportunities then please reach out today. You will ideally have exposure to as many of these More ❯

Senior Software Engineer/Tech leads – React Native/PHP/React/Golang – Tech For Good -Scaleup Environment – 100% Project based – FULLY REMOTE – Offices based in UK 🌳🌳🌳 Candidates can be based anywhere in the UK as long as they are comfortable working in a remote environment. Areti Group has exclusively partnered with a rapidly growing fintech … company based in London who are building out a greenfield team and looking for up to 40 new Software Engineers with experience working with highly scalable microservice architecture by the end of the year. We are now on the lookout for Software Tech Leads/Staff Engineers who will tech control and direction of a number of different … software teams. These roles are FULLY REMOTE and offer you the choice of laptop and tech equipment to make sure you can be the best version of yourself. As a software team lead/staff engineer working for this organization, you must be able to show that you are willing to self-develop and have a real More ❯

Senior Front End D3 Javascript Software Engineer - Holborn Our Client wants to recruit a Senior Front End Software Developer with at least 7 to 10 years expertise of working with D3 React and Javascript. You will be involved with creating sophisticated, robust and easy to use web apps whilst working in a close-knit team More ❯

X15 Go/Golang Senior Software Engineers – Fintech – Start-up/Scaleup Environment – 100% Project based – FULLY REMOTE – Offices based in LONDON 🌳🌳🌳 Candidates can be based anywhere in the UK as long as they are comfortable working in a remote environment. Areti Group has exclusively partnered with a rapidly growing fintech company based in London who are building … out a greenfield team and looking for up to 40 new Software Engineers with experience working with highly scalable microservice architecture by the end of the year. These roles are FULLY REMOTE and offer you the choice of laptop and tech equipment to make sure you can be the best version of yourself. As a software engineer More ❯

About Us Turing is one of the world’s fastest-growing AI companies, pushing the boundaries of AI-assisted software development. Our mission is to empower the next generation of AI systems to reason about and work with real-world software repositories. You’ll be working at the intersection of software engineering, open-source ecosystems, and frontier … AI. Project Overview We're building high-quality evaluation and training datasets to improve how Large Language Models (LLMs) interact with realistic software engineering tasks. A key focus of this project is curating verifiable software engineering challenges from public GitHub repository histories using a human-in-the-loop process. Why This Role Is Unique Collaborate directly with AI … researchers shaping the future of AI-powered software development. Work with high-impact open-source projects and evaluate how LLMs perform on real bugs, issues, and developer tasks. Influence dataset design that will train and benchmark next-gen LLMs. What does day-to-day look like: Review and compare 3–4 model-generated code responses for each task using More ❯