1 to 25 of 29 Senior Software Engineer Jobs in Central London

Senior Software Engineer C++ (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Backend) ***This is a hybrid role, 2 days remote and 3 days in the office*** Our client actively encourages diversity, equality and inclusion within its workforce and welcomes applications from a diverse background … Solutions Limited does not discriminate in regards to age, gender, national origin, religion or any other basis. An excellent opportunity has arisen for a Senior Software Engineer C++to join a friendly team my client are a well-established exchange (FinTech, Financial Technology) based in the City. ...

Senior Software Engineer/Principal Software Engineer- C++, Python - Financial/Banking Candidates will have a minimum 8+ years C++ experience and excellent knowledge of Python -coming from a Financial/Banking background with knowledge of Equities, Futures & Options and Fixed Income and Exchange Connectivity. … work with the Product, Infrastructure and QA teams, to produce high performance, low latency and highly reliable code. Your goal will be to develop software which handle large amount of TPS to drive a highly efficient technology used by several markets around the world. To be successful in this ...

Senior Software Engineer (Golang/Python) | Drug discovery Platform | Fully Remote, EU/UK| Base Salary Up to £110,000, plus early equity+benefits I am currently partnering with an elite engineering team building a world-class platform for decentralised and federated computing. They are solving … most complex challenges in modern tech: how to process highly sensitive data across global organisations without ever compromising privacy. They are looking for a Senior Backend Engineer who wants to move beyond standard applications and help architect the infrastructure for the next generation of secure data collaboration. This ...

Software Engineer (Senior) | C#/.Net & SQL Server | Systematic Hedge Fund Trading Live Markets Salary: £120,000 – £160,000 + bonus (up to 100%) Location: City of London, on-site My client is a long-established systematic hedge fund, just under 20 people in total, with roughly … half the business sitting in engineering. They’ve been running for over two decades, quietly successful, and very deliberate about how they build both software and teams. You’d be sat directly on the trading floor in London, working alongside traders, engineers, and the CEO day to day. ...

Senior Software Engineer (Full-Stack) 📍 Location: City-based (Hybrid/On-site options available) Role Summary We are seeking a highly experienced Senior Software Engineer to drive innovation and technical excellence across the full software development lifecycle. You’ll work across a modern … Required Experience & Skills Strong experience building full-stack web applications using TypeScript/React and C#/.NET (or similar technologies) Deep understanding of software engineering principles, including modular architecture and design patterns Proven experience designing and developing RESTful APIs and microservices Experience architecting end-to-end systems across ...

Senior Software Engineer (Systems & Automation) London, Hybrid, Permanent We are partnering with a high-growth technology firm in London to find a Senior Software Engineer who excels at the intersection of product engineering and operational efficiency. This is a role for an engineer ...

Senior Software Engineer | £70k–£95k | Python • FastAPI • AWS • EKS 🚀 Looking for a product-led engineering role in a recently profitable, high-growth scale-up? This isn't just about maintenance; it’s about building high-scale, cloud-native microservices and tackling a massive upcoming greenfield build. … passion for clean code and architectural best practices. Interested in joining a profitable scale-up with a top-tier engineering pedigree? Let’s chat. 📩 Senior Software Engineer | £70k–£95k | Python • FastAPI ...

flagship products, including CoCreate, CoCreate IQ, and Orios, revolutionize infrastructure development, AIOps, DevOps, and operational management. About The Role Colate is looking for a Senior Software Engineer with Java, GCP, & ECP experience. We’re seeking a talented Senior Java Engineer to join our team … accountable for ensuring all decisions are made within a sound risk framework and within Group standards and appetite while managing the full software development process within an agile environment. Responsibilities What you’ll do Design and develop applications in Java with automated tests to ensure it meets business functionality. ...

Senior Software Engineer (Python) | Hybrid/London | £100k - £130,000 + Equity High-growth InsurTech modernising how underwriting and risk decisions are made. This is a key hire as the business scales its core platform, with backend engineering and AI-enabled workflows central to how the product ...

Senior C# Engineer City of London (On-site) Permanent | £90,000 – £120,000 We’re partnered with an innovative proprietary trading firm in the City of London that is hiring a Senior C# Software Engineer . You’ll work on greenfield projects, cutting-edge technology ...

Senior Software Engineer – Python/Django (6 Month Freelance Contract) 📍 Location: Fully Remote across Europe/UK 📅 Duration: 6 Months 💰 Rate: Competitive A major European mobility and technology organisation is undergoing a significant digital transformation, modernising core systems and building new platform capabilities. Role Summary ...

Senior Software Engineer (TypeScript/Python, FinTech, AI) London (Hybrid) £95,000 The Opportunity Join a high-growth, regulated fintech building next-generation infrastructure at the intersection of traditional finance and digital assets . The platform enables institutional clients to trade, tokenise, and manage real-world financial ...

Senior Backend Engineer Location: London, Hybrid (2 Days Onsite) Salary: £90,000 - £105,000 + Competitive bonus 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. They are looking for a Senior Backend Engineer with deep expertise in JVM technologies to help scale and enhance their high-performance systems. There will be a requirement to use Kotlin moving forwards! This is an opportunity to work with ...

Senior Software Engineer C++ (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Backend) This is a hybrid role, 2 days remote and 3 days in the office Our client actively encourages diversity, equality and inclusion within its workforce and welcomes applications from a diverse background ...

Senior Software Engineer | Remote | £60,000 - £70,000 | C# | .Net | React | Azure | Microservices | .NetCore | .Net Developer | Full stack Developer | Opus have exclusively partnered with a brilliant Saas company that harness technology to build Software within the Proptech industry. They’re currently looking for a Senior Developer to come on board and work across greenfield projects and adding new functionality to existing systems. As a Senior Developer you will be part of a Development team of 5 where you will be building API’s and building full stack applications. On top of this ...

looking for a Senior Software Engineer to join a growing team building smart, scalable tools used by professionals across a range of industries. You'll work onsite in London, helping shape robust backend services and responsive user experiences using React, NextJS and NodeJS. What ...

operations are conducted, building systems that are safer, smarter, and dramatically more environmentally responsible. Location: London or Porto The Role We’re seeking a Senior Software Engineer to design, build, and maintain backend containerised services that power our scalable edge‐compute platforms. You’ll work closely with … Software Team Lead and collaborate across multidisciplinary engineering teams, providing technical leadership while remaining hands‐on with complex systems. What You’ll Do Build production‐grade software using .NET C#, Python , and modern backend technologies Design and prototype services using containerised microservices Apply and challenge engineering best practices ...

Java/Microservices/API design/LLMs/AI/Claude Code/Copilot Role: Senior Software Engineer Company: Financial Services Location: London - Hybrid 3 days per week Salary: up to £120,000 Join a Service Modernisation team driving AI-first software development in financial ...

trajectory is ambitious, from zero to seven figures in recurring revenue within its first year and plus over £20million in funding already!! As a Senior Software Engineer, you’ll join a small, high calibre team where ownership is everything. You’ll work primarily on the backend, integrating … next tech unicorn, together, in the same room, ask the big players. What you’ll need to succeed: Strong experience building production quality software (Java, TypeScript, React or Python) Curiosity and adaptabilit y: you learn new technologies quickly and apply them effectively Hunger and drive: you’re comfortable working ...

Senior Full Stack Engineer | London | Hybrid | Tech4Good Location: London (hybrid, minimum 2 days in office) Salary: £80,000 - £90,000 + shares + benefits Tech stack: Python (Django or Flask or FastAPI) - considering Engineers with a strong background in web development from any backend language React AWS This … support from the team, without heavy process or unnecessary layers slowing you down You will likely have: Solid commercial experience in building and shipping software in production environments Experience working across the stack, with a leaning towards backend systems Strong fundamentals that translate across languages and frameworks The ability ...

Senior Full Stack Engineer London, Hybrid, Permanent We are representing a London-based technology venture building AI platforms to transform how enterprise leaders navigate uncertainty. This is a core engineering role within a senior, lean team. You will be building a platform that goes far beyond standard … SaaS dashboards, focusing instead on high-dimensional data visualization and complex logic systems. The Mission As a Full Stack Engineer, you are a system generalist. You will be responsible for the entire lifecycle of a feature—from the database schema and service logic to the interactive frontend experience. Product ...

code 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. You’ll work closely … engineering on 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 ...

Full Stack Product Engineer (London) We’re looking for a Full Stack Product Engineer to help build and scale a high-growth product in a fast-paced environment. This role is ideal for someone who enjoys working across the stack, shipping features quickly, and solving real user problems. ...

Staff Product Engineer - £150,000 + Equity Location: Shoreditch, London About the Opportunity A high-growth AI-first law firm is looking to transform the UK conveyancing market, starting with the legal process behind every property transaction. Currently, conveyancing is slow, opaque and unreliable, with one in three transactions … with ambitions to expand into a full-service, AI-powered law firm with global reach. The Role The firm is seeking a Staff Product Engineer to join as an early member of a small, high-calibre engineering team. This is a product-first role: from day one, the engineer ...

Contract Product Engineer 6 months minimum, outside IR35 Up to £700 PD I am working with a SaaS scale up who are looking for excellent Product Engineers on contract, who can build 0-1, with a real focus on customer requirements. There is a lot of greenfield work that … needs building, and they need someone who can collaborate closely with a Senior Team, to raise standards, own features from scratch & improve an already super fast-paced technical team Tech Stack: Python ( Django/FastAPI) Typescript ( Vue.js) AWS, serverless NoSQL ( MongoDB/DynamoDB Observabilty/Datadog. This role will ...