26 to 48 of 48 Senior Software Engineer Jobs in the City of London

Senior Full Stack Engineer | London | Hybrid | AI Product Scale Up (start-up) | Python & TypeScript Salary: £80,000 - £95,000 + equity Location: London, hybrid working (1 day per week) A high growth AI product company is hiring a Senior Full Stack Engineer to join a strong … Strong product engineers are being considered if they are comfortable operating across modern web systems. What they’re looking for: Strong experience building production software across frontend and backend systems Experience owning technical decisions and delivering customer facing product functionality Engineers who care about usability and product outcomes ...

Backend Engineer 📍 London, England (Hybrid) 💼 Permanent My client is looking for a Backend Engineer to join a growing engineering team building modern, cloud-native products that directly impact customer experience and business growth. This is a hands-on role for someone who enjoys solving complex technical problems, collaborating … ownership and cares deeply about delivering quality solutions. You’re naturally curious about modern engineering practices and emerging technologies, particularly how AI is shaping software development, but you apply these tools thoughtfully and pragmatically. You’re comfortable operating in fast-paced environments and making sound decisions even when there ...

Senior Full-Stack Engineer £79,000 - £94,000 + Equity | Hybrid (1 day per week in London) We're partnering with a high-growth AI technology company who are already backed by leading venture capital investors and experiencing significant commercial traction, the business has achieved: Enterprise deployments with … impressive ARR run rate Strong investment backing from top-tier funds As they enter their next phase of growth, they're looking for a Senior Full-Stack Engineer to play a key role in shaping the future of the platform. The Opportunity This is a hands-on engineering ...

Embedded Software Engineer | UK (Hybrid) My client is an innovative technology company developing advanced hardware and networking solutions for high-performance computing environments. Theyre looking for Software Engineers to build embedded and host software for high-speed systems, working closely with hardware teams to deliver production … ready solutions from early prototypes. Responsibilities Define software architecture with cross-functional teams Develop embedded software for network interface hardware Linux PCIe driver development Build network control and monitoring tools (server/client) Enhance DevOps and CI/CD pipelines Requirements Strong embedded software development experience Experience ...

Senior Systems Engineer | Rust 📍 London/Hybrid 💰 £140k – £250k + Performance Bonus + Equity This client is building high-performance infrastructure powering decentralised markets. The engineering environment is extremely lean, operating in domains where execution speed, system reliability, and infrastructure quality are vital. Engineers are responsible for designing ...

Software Engineers (Mid & Senior Level) 💰 £70,000 - £115,000 + shares (DoE) 📍 London/hybrid - 3 days per week in the office 🚀 Fintech - Series A funded This is a rare opportunity. Early-stage enough to have real impact. Late enough to have real traction. The window where joining … tech They're actively shipping LLM-powered features into production - and there's real appetite to go further. The Package: Mid-level: £70k–£90k | Senior: £90k–£115k base (DoE) Share options Bupa private health cover 25 days holiday + pension Farringdon, London - hybrid, 3 days per week ...

Senior Full Stack Developer Salary up to £150,000 Office Location - Paddington Join our exceptional team as a Lead Full Stack Engineer and become a valued member of our expanding team. Together, we are at the forefront of driving innovation and progress in our cutting-edge digital platform. … This platform powers a diverse range of applications. Responsibilities: Embrace a hands-on coding role, diving deep into software development. Create highly scalable software solutions to enhance functionality and durability. Collaborate closely with the wider team to refine requirements, ensuring feasibility and pragmatism, and validate development tasks ...

office Salary - £125,000 + 17.5% bonus. The Rol eWe are looking for a hands‐on Lead Develope r to take technical ownership of software delivery across our Distribution/Broker Connectivit y platform. This role sits within an Agile delivery team and focuses on building, integrating, and scaling … technical design, the role is primarily hands‐on developmen t, combined with mentoring and guiding other engineers .This is an ideal role for a senior engineer who enjoys staying close to code while providing technical leadership within a fast‐moving, regulated environment . Key Responsibiliti esTechnical Delivery & Developme ...

Embedded Software Engineer UK (Hybrid) My client is an innovative technology company developing advanced hardware and networking solutions for high-performance computing environments. Theyre looking for Software Engineers to build embedded and host software for high-speed systems, working closely with hardware teams to deliver production ...

Fircroft is partnering with an innovative, cutting-edge organisation developing advanced computing and medical technologies for operating room environments. We are looking for a Senior Embedded Linux Engineer to join a highly multidisciplinary team delivering next-generation solutions. You will play a key role in building and optimising … software systems for complex, hardware-integrated platforms in a highly regulated, safety-critical environment. Key Responsibilities Collaborate within cross-functional teams (embedded software, application software, computer vision, cloud) Develop and productize custom computing and medical devices Build, maintain, and optimize Linux kernels and device drivers Architect, develop ...

Title : Senior Product Engineer Industry : FinTech Stage : Series A, Rapidly growing Office : London 3 days a week. Salary : £80-110k + Equity TypeScript, React, Next.js, Node.js, PostgreSQL Most software makes existing processes slightly better. This team is rebuilding critical infrastructure from the ground up. They … often falls short. They are globally scaling and entering new markets and countries impressively quickly. As they continue to scale, they're looking for Senior Full Stack Engineers to help build products used by thousands of businesses around the world. Why join? Work on genuinely difficult engineering problems Build ...

fast-growing logistics startup in London seeks a Software Engineer to tackle challenging problems and collaborate with experienced professionals. The role involves impactful work from optimizing operational tools to developing scalable applications. This company offers competitive compensation, generous equity, and several benefits, including private health coverage and flexible ...

inference - no gimmicks here, this is our daily routine Emerging tech integrations, including robotics and IoT-powered operations The Opportunity As a Software Engineer at Relay, you'll: Own challenging, impactful problems end-to-end, from routing algorithms to real-time optimisation services and intuitive operational tools. Collaborate ...

Senior Java Engineer – Low Latency Trading London/New York (Hybrid) Skills: Java, Java 23, Low Latency, Trading Platforms, Market Data, Aeron, Kafka, Chronicle, FIX Artemis Talent is partnering with a leading trading technology firm building high-performance, real-time trading systems used across global markets. This ...

Level to Senior Full Stack Engineer London Hybrid - 4 days in office Permanent Salary - 80-110k (based on experience level) + Benefits, share options, L&D budget and more. Some engineering roles are about shipping tickets. This isn’t one of them. We’re working with ...

Role: Lead Python Engineer (Hands-on Team Lead) 📍 Location: London – Hybrid (3 days office/2 days WFH) 💰 Salary: Up to 130k base 🏦 Industry: Fintech Platform We’re working with a profitable, high-growth UK fintech building a platform used by wealth and advisory firms to manage investment accounts … platform — both in terms of scale and functionality . As a result, they’re growing the engineering team and looking for a Lead Python Engineer to take ownership of a core part of the platform. The Role This is a hands-on technical leadership role (50-70% hands ...

want to join a global high frequency trading firm and have real ownership? We’re looking for a sharp, product-minded engineer to help scale a fast-growing platform used across the company. You’ll work across frontend and backend systems, solve performance challenges, and play a key role … data-heavy systems Working closely with users and seeing your impact quickly Refactoring and optimizing systems for speed and scale Must Haves: 5+ Years Software Engineering Trading experience Deep Java Script expertise Experience refactoring existing software Bonus points for experience with Docker, distributed systems, testing, Rust/WebAssembly ...

Bloomberg in the City of London is seeking experienced software developers to take end-to-end ownership of the software development lifecycle, delivering enterprise-grade solutions that influence global markets. Applicants should have 4+ years of experience in C++, Java, or Python, solid knowledge of object-oriented design ...

Senior Software Engineers – C#, .NET, Vue.js, JavaScript, Azure, Testing- Scotland - Award-Winning, High-Growth Tech Scale-Up Award-Winning, High-Growth Tech Scale-Up | AI-Powered SaaS | £48,000 - £60,000 + Market-Leading Benefits After 110% growth in the last 12 months , they are now investing heavily … HTML (SPA) 🌳 Bonus: RabbitMQ, SignalR, broader Azure services Experience with large-scale, complex systems is a major advantage. 🌟 About You 🌳 A strong full-stack engineer with deep problem-solving instincts 🌳 Skilled at breaking down complexity into clear actions 🌳 Emotionally intelligent and great at aligning teams 🌳 Confident challenging assumptions ...

evolve into technical leaders who shape the future of financial technology. What will you do? End-to-End Ownership: Take full responsibility across the software development lifecycle - from business requirements and architecture design to implementation, deployment, and ongoing maintenance. Technical Visibility & Accountability: Deliver enterprise-grade solutions that directly impact … Years of experience in C++, Java or Python with the ability to write clean, efficient, and maintainable code. Familiarity with all phases of the Software Development Lifecycle (SDLC). Proven experience building enterprise-grade applications or large-scale distributed systems. Excellent communication skills with a collaborative and growth-oriented ...

backend systems, while also supporting the growth and delivery of a squad of engineers working on high-impact healthcare technology. A a Tech Lead Engineer you will 👇 Build and scale backend systems: Design, develop, and maintain reliable services powering a platform used by healthcare providers across Europe. Lead ...

FIS Banking Solutions UK Limited in City of London is seeking a talented individual to build the core financial engines of an autonomous banking platform. The successful candidate will design and implement ledger and transaction ...

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We ...