1 to 25 of 82 Remote Senior Software Engineer Jobs in the City of London

Role: Senior Software Engineer , Data Solutions Location: Hybrid (2 days on-site in Central London) Salary: £70,000 to £80,000 + Excellent Benefits Candidates must be eligible for UK Security Clearance The Opportunity We are proud to be working in partnership with a major defence systems integrator to recruit a Senior Software Engineer … solutions in a secure and complex data landscape—an ideal environment for those who want to develop cutting-edge systems and contribute to national resilience. The Role As a Senior Software Engineer, you will play a pivotal role in the design, development, and operation of innovative front-end solutions that interface with enterprise-scale data ecosystems. Working … to project planning, risk assessment, and mitigation strategies. Mentoring junior engineers and helping to shape development standards and tools. The Person We're looking for a proactive and collaborative software engineer who thrives in agile, multi-disciplinary teams and enjoys the challenges of working in secure, data-rich environments. To succeed in this role, you’ll bring: Strong More ❯

Role: Senior Software Engineer Location: Remote (with occasional monthly collaboration days) Are you... A software Engineer with 5+ years experience, working with modern programming with one or more programming languages such as Python, Golang, Java, Ruby, TypeScript etc? Experienced working on cloud platform such as AWS, Google Cloud and have a good understanding of cloud … pop into the office to meet colleagues or even change if scenery when you like? About: Our client are a "Scale-Up" cloud solutions consultancy, helping customers to optimise Software & Cloud, covering DevOps, DevSecOps, Transformation, Strategy and more. Due to recent successes in the continued commercial strategy, we are now looking to grow the engineering footprint significantly to build … new teams for new customer engagements. As a Senior Software Engineer, you will have the opportunity to work across various industries and sectors. This diversity ensures that no two projects are the same, allowing you to gain valuable insights into the unique challenges faced in different domains. The Technology/Skills: As mentioned, every project is a More ❯

Role: Senior Software Engineer Location: Remote (with occasional monthly collaboration days) Are you... A software Engineer with 5+ years experience, working with modern programming with one or more programming languages such as Python, Golang, Java, Ruby, TypeScript etc? Experienced working on cloud platform such as AWS, Google Cloud and have a good understanding of cloud … pop into the office to meet colleagues or even change if scenery when you like? About: Our client are a "Scale-Up" cloud solutions consultancy, helping customers to optimise Software & Cloud, covering DevOps, DevSecOps, Transformation, Strategy and more. Due to recent successes in the continued commercial strategy, we are now looking to grow the engineering footprint significantly to build … new teams for new customer engagements. As a Senior Software Engineer, you will have the opportunity to work across various industries and sectors. This diversity ensures that no two projects are the same, allowing you to gain valuable insights into the unique challenges faced in different domains. The Technology/Skills: As mentioned, every project is a More ❯

We’re a fast-growing, AI-first tech company transforming how visual content is created. Our innovative products power millions of creators and brands worldwide — from AI-driven video and photo tools to an influencer platform that monetizes creativity. What More ❯

We’re a fast-growing, AI-first tech company transforming how visual content is created. Our innovative products power millions of creators and brands worldwide — from AI-driven video and photo tools to an influencer platform that monetizes creativity. What 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 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 ❯

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 ❯

Senior Full Stack Developer London (Hybrid – 2 to 3 days per week in the office) Up to £80,000 + 10% Bonus + Benefits We are hiring on behalf of our client – a tech-driven, award-winning global company headquartered in London and currently experiencing sustained growth. This is a fantastic opportunity to join a well-established business and … play a pivotal role in the ongoing development of a critical part of their ecommerce platform. As a Senior Full Stack Developer, you will be part of a cross-functional team including Back End and Front End Engineers, DevOps, Product Managers, and UX Designers. You will design and implement end-to-end solutions, ensuring performance, scalability, and maintainability across More ❯

Senior Full Stack Developer London (Hybrid – 2 to 3 days per week in the office) Up to £80,000 + 10% Bonus + Benefits We are hiring on behalf of our client – a tech-driven, award-winning global company headquartered in London and currently experiencing sustained growth. This is a fantastic opportunity to join a well-established business and … play a pivotal role in the ongoing development of a critical part of their ecommerce platform. As a Senior Full Stack Developer, you will be part of a cross-functional team including Back End and Front End Engineers, DevOps, Product Managers, and UX Designers. You will design and implement end-to-end solutions, ensuring performance, scalability, and maintainability across 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 ❯

Senior Full Stack Engineer | React | Node | TypeScript | £95k | Hybrid London La Fosse has partnered with a leading credit card company that helps customers make smarter financial decisions. As they continue to grow, they are looking for a Senior Full Stack Engineer with a strong JavaScript background to join their team. What we're Looking For: Experience … We've streamlined our process with a quick 3-stage virtual interview. If you're interested in the position and feel you meet some of the requirements, apply now! Senior Full Stack Engineer | React | Node | TypeScript | £95k | Hybrid London More ❯

Senior Full Stack Engineer | React | Node | TypeScript | £95k | Hybrid London La Fosse has partnered with a leading credit card company that helps customers make smarter financial decisions. As they continue to grow, they are looking for a Senior Full Stack Engineer with a strong JavaScript background to join their team. What we're Looking For: Experience … We've streamlined our process with a quick 3-stage virtual interview. If you're interested in the position and feel you meet some of the requirements, apply now! Senior Full Stack Engineer | React | Node | TypeScript | £95k | Hybrid London More ❯

Senior Software Engineer – AI Innovation Lab £110-125,000 + Strong bonus and benefits package. London, hybrid working. We’re partnering exclusively with a leading global SaaS Scaleup business as they continue to build out a newly established Innovation lab, a dedicated team focused on applying AI and machine learning to solve valuable business problems across the … organisation. This is a hands-on Software Engineering role, part of a growing team, where you’ll work closely with stakeholders across the business to reimagine their systems using modern tools and cloud-native architecture. You’ll be building from the ground up in a greenfield environment, using technologies like Python, TypeScript, FastAPI, AWS and some Azure while contributing More ❯

Senior Software Engineer – AI Innovation Lab £110-125,000 + Strong bonus and benefits package. London, hybrid working. We’re partnering exclusively with a leading global SaaS Scaleup business as they continue to build out a newly established Innovation lab, a dedicated team focused on applying AI and machine learning to solve valuable business problems across the … organisation. This is a hands-on Software Engineering role, part of a growing team, where you’ll work closely with stakeholders across the business to reimagine their systems using modern tools and cloud-native architecture. You’ll be building from the ground up in a greenfield environment, using technologies like Python, TypeScript, FastAPI, AWS and some Azure while contributing More ❯

Senior C# Developer - Fixed Income Key Technologies: C#, .NET, .NET Core, Azure, SQL London Perm Role | Hybrid Working Structure £80,000 - £110,000 Harrington Starr has partnered with a global Investment Bank who are looking to hire a seasoned Senior C# Developer with extensive experience developing Front Office trading systems - specifically Fixed Income . Key Responsibilities: Design, develop More ❯

Senior C# Developer - Fixed Income Key Technologies: C#, .NET, .NET Core, Azure, SQL London Perm Role | Hybrid Working Structure £80,000 - £110,000 Harrington Starr has partnered with a global Investment Bank who are looking to hire a seasoned Senior C# Developer with extensive experience developing Front Office trading systems - specifically Fixed Income . Key Responsibilities: Design, develop More ❯

Social network you want to login/join with: Senior Software Engineer - Remote - Fintech - Up to £120k - Python, TypeScript, AWS, London (City of London) Client: Opus Recruitment Solutions Location: London (City of London), United Kingdom Job Category: Other EU work permit required: Yes Job Views: 2 Posted: 23.05.2025 Expiry Date: 07.07.2025 Job Description: I am exclusively supporting … a FinTech Product Company that is currently hiring for 2 Senior Software Engineers to join their remote engineering team. The company is profitable and has an existing product used by multiple enterprise clients. They seek confident, experienced, and passionate Senior Software Engineers with a product mindset and deep understanding of software engineering. The role is … includes: Python React/TypeScript Node.js AWS GenAI Experience with another backend language (Ruby, C++, Elixir, Haskell, Go, Clojure, or Scala) is a plus Private projects demonstrating passion for software engineering are also advantageous The company is heavily involved in AI and uses up-to-date AI technologies. The position offers up to £120k and is fully remote. #J More ❯

Social network you want to login/join with: Senior Software Engineer - AI Fintech Product Company - FULLY REMOTE IN UK - £120k - TypeScript/Python/React/AWS/GenAI, London (City of London) Client: Opus Recruitment Solutions Location: London (City of London), United Kingdom Job Category: Other EU work permit required: Yes Job Views: 11 Posted … 25.05.2025 Expiry Date: 09.07.2025 Job Description: I am supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! They are a heavily tech-driven Product Company emphasizing quality engineering, innovation, and forward-thinking. As a Senior Software Engineer, you will More ❯

Job Title: Senior Software Engineer – LLM Evaluation & Repository Validation 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, including development environment automation, issue triaging, and evaluating test coverage and quality Why Join Us? Turing is one of the world’s fastest-growing AI companies accelerating the advancement and deployment of powerful AI systems. You’ll be at the forefront of evaluating how LLMs interact with real More ❯

Job Title: Senior Software Engineer – LLM Evaluation & Repository Validation 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, including development environment automation, issue triaging, and evaluating test coverage and quality Why Join Us? Turing is one of the world’s fastest-growing AI companies accelerating the advancement and deployment of powerful AI systems. You’ll be at the forefront of evaluating how LLMs interact with real More ❯

the Machine Learning team; however, you are not required or expected to have background in Machine Learning. This is an applied role, and we are looking to hire a software engineer with experience in cloud computing and distributed systems. In this role, you will: Design and develop highly-scalable, fault tolerant and event driven systems. Lead projects from … object-oriented programming language. Cloud-native technologies: Experience in architecting and deploying in cloud platforms (e.g., AWS, GCP or Azure), an understanding of containerisation (e.g., Docker), infrastructure-as-code software (e.g., Terraform), and observability platforms (e.g., Datadog or Grafana). Leadership: A track record of leading complex projects. Problem solving: Strong analytical problem-solving skills and attention to detail. … experience: Experience with a startup work environment and wider ecosystem. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + public holidays allowance. Opportunities for professional growth and progression with your career. Work on More ❯

team by six more engineers. You’ll be working with a modern stack including Java 21, Spring Boot, Microservices, AWS, PostgreSQL, TDD, BDD, and React. They’re hiring Mid, Senior, and Lead Engineers who are strong problem-solvers, great communicators, and excited to build in a high-growth, mission-driven environment. A fintech/Payments or Finance background is 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 ❯

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 ❯