1 to 25 of 108 Senior Software Engineer Jobs in the City of London

Senior Software Engineer | Senior Engineer | Senior Full Stack Engineer 💰Up to £110,000 per annum 🏡Office based in Camden, 2 days a week in office 💻TypeScript, Node.js, React.js, PostgreSQL My client is hiring for a Senior Software Engineer to join … high-growth product company delivering real-time salary transparency across Europe. This Senior Software Engineer role sits at the heart of the next growth phase, with ownership across platform scalability and new product development. If you are a Senior Software Engineer who enjoys driving ...

Senior Software Engineer – Platform – Design and Build Platform for Massive Expansion Up to £130,000 plus benefits London Office – 4 days a week Golang, AWS/GCP, Kubernetes, Distributed Systems Senior Software Engineer - We’re working with a high-growth payments business that … become a major player in Europe. With over 150,000 customers and billions processed annually, they are scaling rapidly — and now looking for experienced Senior Software Engineers to join their Platform organisation. This is a Senior Software Engineer role, ideal for someone who enjoys working ...

Senior Software Engineer Node.js/AWS/React London (Hybrid, 3 days onsite) Are you the kind of Senior Software Engineer who enjoys taking something fast-and-scrappy and turning it into something scalable, elegant, and genuinely robust? This is a chance … Senior Software Engineer to join a small, but ambitious tech-for-good/IoT startup based in the London City Centre thats building products to make sense of massive data streams. Youll be part of a tight-knit team (around ten people total, five software engineers ...

Working for an industry leading, high-growth SaaS business with some of the biggest brand names in the world as customers, the Senior Software Engineer will build innovative next-gen solutions that are at the forefront of the industry. In this role, the Senior Software Engineer will be given full autonomy, taking ownership from design phase through to deployment, building scalable backend systems, as well as some frontend too if you like. This area is the future of the company (and the industry!) and as such has strong investment and visibility. The Senior ...

Senior Software Engineer | Computer Vision | C++ | Python | 3D | OpenGL | Hybrid, London Senior Software Engineer — 3D Asset Processing & Rendering We’re looking for a senior software engineer to own the 3D asset processing and rendering infrastructure in our desktop material-capture application … core modules, ensuring stability, performance, and quality Establish best practices for graphics programming and performance optimization Key Requirements Must have: 5+ years of professional software engineering experience A track record of building and shipping graphics/rendering capabilities in software products Strong expertise in both C++ and Python ...

Senior Software Engineer (React, Node.js, AWS) Salary: £90,000 - £110,000. Location: Hybrid in London. Senior Software Engineer (React, Node.js, AWS) - would you like the opportunity to work for a market leading organisation, currently looking to revolutionise the data space? You will be joining … technology team who have a passion for innovation, collaboration as well as embracing new ideas, technologies and approaches. As a Senior Software Engineer, you will be working closely with Product and design, taking full responsibility and ownership from conception to post-deployment. The company has grown significantly ...

Senior Software Engineer Node.js/AWS/React London (Hybrid, 3 days onsite) Are you the kind of Senior Software Engineer who enjoys taking something fast-and-scrappy and turning it into something scalable, elegant, and genuinely robust? This is a chance … Senior Software Engineer to join a small, but ambitious tech-for-good/IoT startup based in the London City Centre thats building product click apply for full job details ...

Senior Software Engineer - TS, React, Next.js, Node £70,000-85,000 3-4 days p/week in London Would you like the opportunity to work for a fast-growing start-up, currently looking for a Senior Fullstack TypeScript Engineer? You will be joining … dynamic product team, where you will be building great software and diving into the world of AI. The company is committed to providing a seamless experience for both customers and internal teams. You will work within a unified codebase that drives their B2B software and custom AI. ...

Senior Software Engineer – Full Stack ⚙️ TypeScript, React, Node 📍 London | Hybrid (3-days per week) 💰 up to £100K + Equity We’re partnering with a fast growing London founded scale up that is transforming how companies manage and empower their people. Their intuitive integration rich platform replaces outdated … really matters. Backed by top tier investors and already trusted by a global customer base, they are now expanding their engineering team with several Senior Full Stack Software Engineers to help take their product to the next level. The Role As a Senior Software Engineer ...

Senior Software Engineer Key Technologies: C#, .NET, React, JavaScript, Typescript, AWS, Docker City of London, United Kingdom Perm Role: £80,000 - £120,000 Harrington Starr has partnered with a Global Financial Services Vendor and they are looking for a Senior C#, .NET Software Engineer … work in the UK. This role offers hybrid working, with an office location based in the City of London. This role will suit a Senior Software Engineer, with expert C#, .NET experience having a direct impact from the get-go. ...

Senior Software Engineer – DeepTech Scale-Up - London - Hybrid Senior Software Engineer required (TypeScript/React/Node) to join a fast-growing London-based scale-up on a mission to build a next-generation data platform. You will work across the stack, making senior … clients across Europe and rapid expansion ahead, this is an opportunity to shape a product with real impact. About You: 4+ years experience in software engineering Strong proficiency in TypeScript , React , Node , PostgreSQL Ability to own complex features from concept to ship Comfortable in a fast-moving scale ...

Senior Software Engineer (Node.js) Location: Hybrid working in London (3 days p/week) Salary: £Up to £120k + options Are you passionate about using technology to tackle real-world sustainability challenges? As a Senior Software Engineer (Node.js), you’ll be at the heart … proficiency in Node.js, JavaScript/TypeScript. Solid understanding of distributed or event-driven systems. Experience with cloud platforms, AWS ideally. If you’re a Senior Software Engineer (Node), looking to work in an early stage start-up, please apply. ...

Senior Software Engineer – Middle Office Trading & Technology London | Hybrid (3 days onsite, 2 remote) A scaling macro hedge fund founded by a leading portfolio manager from a top multi-manager is seeking a Senior Software Engineer to join its Middle Office Trading & Technology team. … fund continues to expand across London and New York, trading fixed-income relative value and macro strategies. As a Senior Engineer, you will design and build core systems supporting trade capture, lifecycle management, P&L, and reconciliations , working directly with trading, quant, and operations teams. Requirements: 5+ years ...

Senior Software Engineer – React Native & React 📍 Hybrid (London 2–3 days/week) 🌍 VC-backed Fintech Start-up 💵 £70k - £90k + equity Albany Growth are working with a fast-scaling fintech start-up who are building something that is revolutionising how people manage their money and financial … wellbeing. Their mission is to give people more control, freedom and flexibility with their money. They're now looking to bring in a Senior Engineer to take ownership of front-end development across both mobile (React Native) and web (React). You'll join a highly collaborative, product ...

Senior Software Engineer (Python) Hybrid London (1–3 days per week) Up to £80,000 + Benefits Are you a passionate Python engineer who thrives on building scalable, high-quality software? We’re working with a multi-award-winning digital agency , recognised … Sunday Times Best Places to Work , that’s looking for a Senior Software Engineer (Python) to help shape the next generation of their data-driven tools and products. 💡 Why this role? Work at the intersection of data, automation, and AI , delivering tools that drive measurable impact ...

Title: Senior Software Engineer (Full Stack React/Next.js/Node.js) Reporting to: Lead Software Engineer Location: Head Office, White City Place, West London Contract type: Full Time, 37.5 hours per week About Us: ME+EM is one of the UK’s fastest-growing luxury fashion … door is always open to new talent ready to contribute to our growth and evolution. About the Role: We’re hiring a Senior Software Engineer (Full Stack) to join ME+EM’s established Digital Platforms team. Following the successful completion of our digital transformation, we’re now focused ...

Senior Software Engineer - Gen AI 1 day a week in Central London, hybrid working Salaries paying £80k-£130k + annual bonus Oliver Bernard have partnered with a rapidly growing FinTech in London who are building the next generation of AI based financial products. We are looking … Senior Software Engineers who have commercial experience with GenerativeAI and LLM integrations. You will be building Gen AI frontend agents and working with hybrid codebases with hosted prompts. This is a full stack opportunity working in their Gen AI team, working across Python, TypeScript and React. ...

Senior Software Engineer, Python, TypeScript, React - Elite funded Fintech **this role will come with a competitive salary , benefits and equity** A Series C funded fintech scale-up who has just raised over £350million and now valued at over £700million is hiring a number of Senior/… Lead Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to an organisation that has tripled revenues over the past 2 years and is being classed as one of the next Unicorns. The company operates at the intersection of technology ...

Senior Embedded Software Engineer Salary : Up to £100,000 Location : London - 3 days a week We’re working with a rapidly growing tech for good company that is transforming how data, automation, and smart integrations shape the future of digital infrastructure. Their platform optimises real-time operations … connecting users with seamless, intelligent technology solutions. We are looking for a modern, innovative and driven Senior Embedded Software Engineer to join their growing team. They are looking for someone who has commercial experience working with C software development in an IoT, hardware or embedded solutions ...

Senior Software Engineer 📍 Location: Onsite, London, United Kingdom ⌛ Type: Full-time 💰 Compensation: Negotiable (Competitive salary + equity) About Ontik Ontik is an ambitious, early-stage B2B financial operations platform designed to streamline and simplify complex financial workflows for heavy duty industries. We’re scaling rapidly and looking … high-performance, ownership-driven environment, where you can make a direct impact on the product and help shape its future. Role overview As a Software Engineer (Full-Stack) at Ontik, you’ll play a pivotal role in building and scaling our financial operations platform. This is a hands ...

interested in working in Tech for Good? Have you got experience working with Kotlin, or are keen to work with Kotlin? Senior Software Engineer – Clean Energy for EV Charging 💰 Up to £95k + bonus + shares + benefits 📍 Hybrid in London 2 days per week … accessible green energy for the charging of electric vehicles. Due to exciting projects in the pipeline, they are looking to grow their team with Senior Software Engineers who have experience in the following: Kotlin software development (They are also open to Core Java experience, as long ...

Senior Software Engineer (Python - FastAPI) This fast-growing consultancy is pushing the boundaries of AI and data science, helping clients turn complex challenges into scalable, production-ready solutions. They’re now hiring a Senior Software Engineer who can blend deep technical expertise with … above What You’ll Be Doing: Leading the end-to-end design and build of applications that utilise advanced AI and data-led software solutions. Developing scalable data pipelines and backend services that support complex modelling work. Setting standards for clean, efficient engineering across Python(FastAPI), SQL and cloud ...

Senior Software Engineer (C++) – Real-Time Market Data Systems Company Insight: A leading global quant trading firm is looking for a senior software engineer experienced in market data processing to help evolve the firm's real-time market data platform - a critical system that … Responsibilities: Build and enhance real-time market data and distribution pipelines spanning global markets and multiple asset classes. Design and optimise high-performance, distributed software systems for processing market data at scale. Champion engineering best practices and innovation. Serve as a technical leader in market data systems. Apply data ...

Senior Software Engineer Climate Tech Nearly Remote (travel into London) Salary up to £100,000 We are the chosen talent provider of an innovative early-stage company in the climate & insurance space. Are you a builder who wants to use your software engineering skills to make … sustainability efforts across the globe. They’re a small but highly experienced team of tech and insurance pioneers, and they’re looking for a Senior Software Engineer to help shape the future of their platform. What You'll Do: Play a major part in designing and building ...

Senior Software Engineer (.NET) Up to £115k + Benefits | London | Hybrid Omnis Partners are partnering with a high-growth technology organisation that is redefining how merchants leverage data, analytics, and AI to understand performance and accelerate revenue growth. We’re looking for a Senior Software Engineer (.NET) to join the central Data & AI team. You’ll build scalable backend services, APIs, and data pipelines that transform millions of transactions into actionable insights for merchants. This is a greenfield opportunity to shape systems that scale, drive AI-enabled analytics, and make a real impact ...