1 to 25 of 152 Permanent Senior Software Engineer Jobs in London

Senior Software Engineer A fantastic opportunity for a Senior Software Engineer to join a world-class technology company developing advanced AI-driven software solutions. Working within an exceptional engineering environment, you will play a key role in designing, building and enhancing highly sophisticated … software platforms that solve complex real-world problems. This organisation is known for attracting some of the brightest technical minds in the industry and places a strong emphasis on both academic excellence and engineering capability. Location: Cambridge or London (minimum 2 days per week in the office) Salary ...

Senior Software Engineer C++ (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Backend) ***This is a hybrid role, 3 days remote and 2 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 | 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 London (Hybrid) £90,000 - £100,000 Here at Data Idols, we're working with an innovative technology business that is scaling a cutting-edge AI-powered platform used by enterprise clients globally. As the platform continues to grow, they're looking for a Senior Software Engineer to play a key role in shaping its future architecture, scalability and technical direction. This is an opportunity to join a high-performing engineering team where you'll have genuine influence over architecture, technology decisions, product direction and engineering standards. The Opportunity As a Senior ...

Senior Java Software Engineer - Java Developer, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Senior Java Software Engineer role:- You will be joining a fast-growing, research-driven … learning techniques. My client is revolutionising their industry with a track record of building things that others have ruled out as impossible. The Java Software engineer will join a very bright, talented team of engineers with the guidance of technologists who have help build up some ...

Senior Software Engineer £75,000 – £85,000 + Bonus & Benefits Hybrid | Central London (1 day per week) We're working with a scaling, mission-driven consumer app business to find a Senior Software Engineer to join a small, high-ownership engineering team. They … product is a consumer app used by hundreds of thousands of customers globally, and the engineering team deploys multiple times a day. As a Senior Software Engineer, you'll work comfortably across both backend and frontend, with a natural lean towards backend design and architecture. The team ...

Tech Lead/Senior Software Engineer/Software Architect .NET | C# | Python | AI | Architecture | London (Hybrid) Permanent: £80,000 - £110,000 + Benefits OR Contract: £600 - £700 per day Location: London City (1-2 days per week) Overview We're working with a well-known global … modernising a legacy product, improving its architecture, integrating it with wider enterprise systems, and introducing AI capabilities into both the product itself and the software development lifecycle. Rather than a large-scale rewrite, the platform will be modernised incrementally, requiring someone who can balance strategic architectural thinking with hands ...

Senior Software Engineer - hx Renew/Pricing Hybrid Are you an experienced Software Engineer with expertise in Hyperexponential's hx Renew or similar Insurance Pricing, Rating, Actuarial, or Underwriting platforms Our client is looking for a talented engineer to join their growing technology team … pricing technology, influence technical direction, mentor other engineers, and contribute to large-scale transformation projects within a collaborative engineering environment. The Role As a Senior Software Engineer, you'll be responsible for supporting and enhancing the hx Renew pricing platform while assisting with the transition away from ...

Senior Software Engineer (Python) – FinTech Orbis is working with a rapidly growing FinTech firm whose core technology is transforming the Investment Management industry. They are now seeking a Senior Software Engineer with excellent Python experience, who might also be interested in picking up Rust. … This is an excellent opportunity for a Senior Software Engineer with a background in Financial Services to work alongside an industry-leading team of Quant, Product and Software Engineers on the technology underpinning the operations of some of the world’s leading Investment Managers. Your ...

inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Senior Software Engineer I - Search and AI Platform Are you passionate about building scalable, high-performance data-driven applications? Do you enjoy turning complex … scientific community so they can collaborate more effectively, work smarter, and deliver quality research more quickly. We are looking for an innovative, passionate Senior Software Engineer II to work as part of the teams building and enhancing our platform to deliver intelligent, scalable solutions that create real ...

inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Senior Software Engineer II (Java/Spring) Are you passionate about building scalable, high-performance data-driven applications? Do you enjoy turning complex datasets … scientific community so they can collaborate more effectively, work smarter, and deliver quality research more quickly. We're looking for an innovative, passionate Senior Software Engineer II to work as part of the teams building and enhancing our platform to deliver intelligent, scalable solutions that create real ...

Senior Software Engineer : £650 Inside IR35 : Hybrid London (3x per week) : Banking client A major UK bank is seeking Senior Software Engineers to support on a major transformation project to rebuild the payment system, replacing their existing enterprise solution. The new product will support … extension) Apply now or reach out directly to find out more. Due to the high volume of applications, not all applicants will receive feedback. Senior Software Engineer : £650 Inside IR35 : Hybrid London (3x per week) : Banking client ...

Senior C++ Software Engineer/Developer Cambridge/WFH to £80k Do you have strong backend C++ software development experience? You could be progressing your career at the world's most advanced cybersecurity technology business that uses AI technology to protect clients across the globe from … advanced cyber threats, working alongside a team of friendly and supportive people and enjoying a host of perks and benefits. As a Senior C++ Software Engineer within the R&D team you'll lead and contribute to projects ranging from rapid prototyping and proof-of-concepts ...

Senior Backend Engineer | Senior Software Engineer | Python | Remote UK 💰 £90,000 - £110,000 🏠 Fully Remote (UK) 💻 Python, Flask, AWS, PostgreSQL, Docker 🚀 High-growth consumer platform scaling rapidly We’re partnered with a high-growth consumer tech platform looking to hire a Senior Backend Engineer … culture with continuous deployment Consumer product used at significant scale If you’d be interested in hearing more, feel free to reach out directly. Senior Backend Engineer | Python Engineer | Backend Developer | Remote ...

Senior Software Engineer (Contract) | AI/ML, Cloud & Backend Contract: Initial 6 Months Location: London (Hybrid – 3 Days Onsite Minimum) Start Date: ASAP Engagement: Full-Time Contract IR35: Outside Rate £500-£600 per day We’re working with a highly regarded enterprise software business seeking … Senior Platform Engineer to support a major phase of product and platform delivery. This is a hands-on contract role for a senior engineer who can quickly integrate into an established engineering function and contribute from day one across backend engineering, cloud infrastructure, platform architecture ...

Senior Software Engineer (Backend)London - Hybrid (3 days in office) Up to £85k + benefits What if the systems you built were used every day by millions of readers around the world? A long-established, AI-driven technology business is hiring a Senior Software Engineer … machine-learning-led products that operate at scale, helping publishers make smarter decisions around content, engagement, and audience growth. This is a hands-on senior role within a strong London-based engineering team, focused on backend systems at the core of the platform. The role Build and evolve backend ...

Title: Senior Software Engineer – Full Stack (Next.js + Google Cloud) Candidate location: Preferably UK (or equivalent with similar time zone) Company location: UK-based company, remote-friendly Salary: £80,000 - £100,000 About the Company A rapidly growing UK-based technology startup is transforming the entertainment ecosystem. … your chance to join a high-impact team where your technical decisions will directly influence the platform used by millions worldwide. The Role As Senior Software Engineer, you will take ownership of the full technology stack, from frontend to backend. You’ll guide the architecture, oversee serverless ...

Senior Software Engineer (ML Systems) Title : Senior Software Engineer (ML Systems) Company : Deep Technology Organisation Location : London Pay : Up to £120,000 Company : A deeply technical organisation is investing heavily in the future of large-scale intelligent systems. They are assembling a small group … exceptional engineers and researchers to tackle some of the most challenging problems at the intersection of software, hardware and performance engineering. The team focuses on understanding how complex distributed systems behave at scale, using measurement, modelling and simulation to guide design decisions long before systems are deployed. ...

Senior Software Engineer (Python | Cloud Automation) London | Hybrid (2 days onsite near Liverpool Street) Are you a software engineer who loves solving infrastructure challenges through code? We're recruiting for a Senior Software Engineer to join a major long-term government technology … where your work will have a direct impact on the success of a high-profile programme. Unlike many infrastructure roles, this is a genuinely software engineering-focused position. You'll spend your time building automation frameworks, developing internal tooling, creating Infrastructure as Code solutions, and eliminating manual processes through ...

Senior Software Engineer (Python Cloud Automation) London Hybrid (2 days onsite near Liverpool Street) Are you a software engineer who loves solving infrastructure challenges through code? We're recruiting for a Senior Software Engineer to join a major long-term government technology ...

Senior Software Engineer A fantastic opportunity for a Senior Software Engineer to join a world-class technology company developing advanced AI-driven software solutions. Working within an exceptional engineering environment, you will play a key role in designing, building and enhancing highly sophisticated … software platforms that solve complex real-world problems click apply for full job details ...

Senior Software Engineer | HealthTech | London (Hybrid) A UK HealthTech company supporting 500+ GP practices and 4.5M patients is hiring a Senior Software Engineer to join their growing engineering team. Their software helps clinical teams identify at-risk patients earlier and manage them more … join a cross-functional squad, initially reporting into a Squad Lead, shipping features that directly improve how primary care is delivered. This is a senior IC role for now, but the team is growing quickly and the expectation is clear: the right person will move into a leadership position ...

Senior Software Engineer (ML Systems) Title : Senior Software Engineer (ML Systems) Company : Deep Technology Organisation Location : London Pay : Up to £120,000 Company : A deeply technical organisation is investing heavily in the future of large-scale intelligent systems click apply for full job details ...

Senior Software Engineer Enfield – 3 Days in Office £60,000-£65,000 I’m currently working with a well-established global engineering company who are looking for a Senior Software Engineer to join their growing team in Enfield. The business has been operating … decades and develops advanced technology solutions across industries such as maritime, defence and surveillance. This role will see you taking ownership of software development across the full lifecycle, from initial specification through to testing and verification. You’ll play a key role in developing new, innovative products while also ...

Senior Software Engineer London or Manchester (1–2 days per week onsite) Up to £115,000 + benefits Permanent We are looking for a Senior Software Engineer to join a leading Microsoft-focused consultancy delivering modern cloud-native solutions across a range of sectors. … This is an ideal opportunity for a strong engineer who enjoys remaining hands-on while influencing design, mentoring others, and working closely with architects and clients. We're particularly interested in polyglot developers with deep expertise in the Microsoft ecosystem. Strong experience with Azure and .NET/C# ...