1 to 25 of 41 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 | Typescript/PHP (Laravel) | Up to £100k 💻 Senior Software Engineer ⚙️ PHP (Laravel), Typescript, Claude 📍 Hybrid - Central London (3 days p/w) 🤖 Low ego, AI-Forward Engineering Culture 💰 Up to £100,000 per annum We're working with a high-growth … SaaS business hiring a Senior Software Engineer to join a collaborative product engineering team building software that supports complex operational and compliance workflows at scale. This is a company with mature, low-ego engineering culture, where senior developers are trusted with ownership, technical input, architectural ...

Senior Software Engineer | Distributed Systems | Sustainable Cloud Native Platform 💸Up to £110,000 per annum plus bonus plus stock 🏠Central London office 🖱️Golang, Rust, C, Kubernetes, Linux, Cloud Native, Distributed systems... Are you a Senior Software Engineer with extensive knowledge of building distributed systems … so... I'm partnered with a very exciting Cloud scale-up who have received record Series A funding and are looking for innovative Senior Software Engineers to join their ambitious team! With a new VP of Engineering who has spent much of their career building out a world ...

Senior Software Engineer Hybrid in London £100-150k + equity Sponsorship available Summary This is an exciting team of smart and kind engineers that index for both when hiring. They're looking for a Software Engineer who can ideally work up and down … ideally comfortable with either Python or TypeScript on the backend. The company A well-funded fintech-adjacent AI company is looking to hire a Senior Software Engineer . The founding team come from high-growth technology companies and are perfectly placed to execute on their mission. They ...

Role: Senior Software Engineer – Defence Location: North London Job Type: Permanent, Full Time, Hybrid We are partnering with a leading defence radar technology company to recruit a Senior Software Engineer . This is an exciting opportunity to work on cutting-edge systems, contributing … full software lifecycle for advanced, high-performance products used in critical environments. The Role As a Senior Software Engineer, you will take ownership of software development from initial concept through to verification and delivery. You’ll play a key role in designing robust solutions, supporting ...

Senior Software Engineer Salary: Negotiable (Depending on Experience) Location: North London Area Schedule: 3-days on site and 2-days WFH per week The Opportunity We are supporting a globally recognised engineering business at the forefront of advanced radar and surveillance technology in the search … Senior Software Engineer. This is an excellent opportunity to play a key role in the development of innovative, high-performance software solutions used within cutting-edge maritime navigation and defence systems. You will take ownership of software design across the full lifecycle, contributing to both ...

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 (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 | Hybrid (3 days a week London) | Up to £120k | React + Python We’re currently working with a fast-growing, technology-driven startup that’s on a mission to transform personalised consumer experiences through innovation and scale. Their platform powers a multi-brand ecosystem … proprietary technology spanning e-commerce, data, and in-house operations. As they enter their next phase of growth, they’re looking for a Senior Software Engineer to join a high-impact team. They embrace modern, AI-assisted development workflows and treat agentic tools as a core part ...

Senior Software Engineer | Sports Data London, UK | Remote Working Up to £80,000 + Company-wide benefits We’re partnered with a high-growth sports media network that operates a portfolio of market-leading brands and partnerships across the sports betting and tech space. Their mission … fans with premium content, real-time insights, and cutting-edge tools, all powered by modern, cloud-native technology. They are looking for an established Senior Software Engineer to join their expanding data team, where you will be working directly on key services that power a core part ...

Engineering Lead, Senior Software Engineer, Quantum Computing, Financial Services, Cloud Technology, Technology Architecture and Design, Start-Up Environment Hybrid Role – London office 2 to 3 days a week – if based outside of London, consistent visits to the office are essential – please note that sponsorship is NOT available … financial services, applying cutting-edge technology solutions to solve complex business problems for their clients. This position will suit an Engineering Lead/Senior Software Engineer with detailed design, architecture and coding skills who is technology agnostic, can wear multiple hats and has an ambition to grow ...

Contract Senior Software Engineer (Java or Python) | Inside IR35 Contract length: 6 months (with potential to extend) Location: London Working Environment: On-site You will be joining a private equity firm as a senior software engineer, to work across the following responsibilities: Develop ...

Senior Software Engineer – AI Startup – Up to 160k 🚀🧠 💰 Salary: £70,000 - £160,000 + meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 2/3 days in office 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite … world problems with the latest in AI and LLMs, this role is for you. In this role, you’ll: 🔧 Build and ship high-impact software 🧠 Work on AI/LLM-powered automation tools used in production 🏗️ Help shape scalable systems and infrastructure 🌍 Work collectively across teams to push ...

Senior Software Engineer – AI/Agentic Systems London (Hybrid) We’re partnering with a cutting-edge AI startup redefining how intelligent systems operate at scale. Their mission is ambitious: to push the boundaries of agentic AI and build platforms that automate complex, multi-step human workflows—unlocking … alongside world-class AI talent, and directly shape a platform sitting at the intersection of research and real-world deployment. The Opportunity As a Senior Software Engineer , you’ll play a key role in building and scaling an enterprise-grade AI platform. You’ll operate ...

Senior C++ Software Engineer – Test Frameworks (Low Latency Trading) 📅 12-Month Contract 💰 £650 – £750 per day (Inside IR35) Templeton & Partners are urgently seeking a Senior C++ Software Engineer specialising in automated test framework development to join a high-performing engineering team working … opportunity to contribute to the evolution of a sophisticated testing ecosystem that underpins mission-critical trading systems across global markets. Role Overview As a senior engineer, you will play a key role in designing and enhancing a robust automated testing framework used across complex C++ services. Your work ...

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 | 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 ...