1 to 25 of 85 Permanent Senior Software Engineer Jobs in London

SENIOR SOFTWARE ENGINEER - eDV CLEARED NEW PERMANENT JOB OPPORTUNITY AVAILABLE WITHIN A GLOBALLY LEADING NATIONAL SECURITY COMPANY FOR A SENIOR SOFTWARE ENGINEER WITH eDV CLEARANCE Permanent job opportunity for a Senior Software Engineer Globally leading defence/cyber security company Salary … plus clearance bonus London based organisation in an easily accessible location Permanent Software Engineer To apply please call/or email WHO WE ARE? We are recruiting Senior and Lead Software Engineers to work with a multi-national, industry leading National Security client in central London. ...

Senior Software Engineer (Python) – Reducing Carbon Emissions with Machine Learning! Python on AWS £90-£110,000 per annum plus stock London Office - 1-2 days a week Are you a Senior Software Engineer with a passion for working with curious, humble colleagues to build … exceptional customer-focused products using Python? Do you align with their principles – “Work as much as you want, where you want” - giving Software Engineers the autonomy and support to perform at their best? Do you want to be part of a period of significant growth and opportunity, shaping elegant ...

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 | 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 ...

Role: Senior Software Engineer Location: London Area, United Kingdom (Hybrid) Employment Type: Full-time Seniority: Senior Level Salary: £85,000 + Bonus Are you a highly experienced Software Engineer ready to take ownership of complex systems and drive engineering excellence in a fast-paced … environment? We're looking for a Senior Software Engineer to play a key role in designing and delivering scalable, high-quality software solutions. You'll operate at the heart of engineering-leading technical decisions, mentoring team members, and shaping architecture across modern, cloud-based platforms. This ...

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 ...

Role: Senior Software Engineer - Front End Location : London/Newcastle – Hybrid Office & Home Who Are We? mkodo builds world class apps, middleware and digital products in the global lottery, betting, and gaming space. We have an open, supportive, dynamic culture where talented people are trusted to contribute … global lottery industries, brought mkodo strong financial security, access to resources and clients at a global level. About the role: Reporting to a Software Engineering Manager, the Senior Software Engineer is a major contributor and technical influencer within an engineering team delivering high-quality applications ...

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 ...

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 ...

Title: Senior Software Developer (eDV clearance required) Location: Hybrid In London Employment Type: Permanent Salary: Up to £75,000 + package Start Date: Immediate Industry: IT Services & Consulting We’re working with a specialist consultancy delivering mission-critical digital solutions across the UK public sector. They’re looking … Senior Software Developer with strong Golang experience and a passion for building high-quality, user-focused systems. You’ll be joining a collaborative, multi-disciplinary team working on impactful projects, with the opportunity to influence both technical direction and user outcomes. Senior Software Engineer ...

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 (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 ...

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 London – Hybrid We’re working with a growing, international technology business at a pivotal stage of its scale-up journey. With a high-performing team of around 40 people and ambitious growth plans, the company is now seeking a Senior Software Engineer … systems and support the next phase of scale. Reporting into the VP of Engineering, this role is focused on building reliable, scalable software and supporting the systems that underpin the company’s platform. While not a people management position, it carries significant influence across engineering and plays a central ...

Senior Software Engineer Central London | £85,000 plus 10% bonus and benefits | 2 days in the office This is a chance to step into a senior, hands on engineering role where you can influence how complex, revenue critical platforms are designed and built. You will play … Design and build scalable, reliable backend and frontend systems that support internal products used to manage advertising campaigns end to end Act as a senior technical voice within the team, guiding design decisions and challenging the "why" behind solutions Coach and support a small group of developers through code ...

Senior Software Engineer Location: London (hybrid, 2 days per week in the office) Salary: Up to £95,000 + 10% Bonus Working Model: Hybrid (2 Days in Office per Week) This is an opportunity to step into a genuinely influential senior engineering role within a growing … requirements constructively and helping the team focus on the why, not just the task Your Skills and Experience Strong commercial experience building production-grade software in JavaScript or TypeScript environments Backend development experience with Node.js and modern APIs Frontend experience with React, ideally including Next.js Experience working ...

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 ...

Senior Software Engineer Are you a developer who loves building products, not just features? Do you thrive at the intersection of robust backend logic, intuitive frontend interfaces, and conversational AI? Are you excited to join a fast-growing, seed-funded startup transforming construction procurement? If you want … small, ambitious team of 10 that moves fast, trusts each other, and enjoys building genuinely impactful technology. Your Role As a Senior Software Engineer you won’t just be ticket-crunching. You will own the end-to-end experience of our platform. You’ll be responsible ...

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. ...

Title : Senior Software Engineer (Compilers) Company : HPC & AI Location : London (primarily remote) Compensation : Up to £190,000 Company : An advanced HPC R&D firm, looking to expand the UK compiler team. Most of the team are ex-Big-Tech, ex-FAANG or ex-Chip firms. They joined … technical leadership. If you want to work alongside some of the brightest, most enthusiastic people in the industry, this may be worth exploring. Role : Senior Software Engineer position with an emphasis on AI Compiler development. You will be a significant hire and will own much ...

Title : Senior Software Engineer (GPU Drivers) Company : AI Acceleration Location : London (very flexible WFH) Pay : Up to £160,000 + bonus and benefits Company : An advanced HPC R&D firm, looking to expand their GPU Driver team. Most of the team are ex-Big-Tech, ex-FAANG … technical leadership. If you want to work alongside some of the brightest, most enthusiastic people in the industry, this may be worth exploring. Role : Senior Software Engineer position. You will be a significant hire spearheading much of their 2025 development. Much of the team will be built ...

Senior Software Engineer II – ML Platform & GenAI (relocation to dubai) Location: Dubai, United Arab Emirates As part of the Machine Learning Platform & Generative AI Applications team, this role sits at the intersection of engineering, data science, and product development. The team builds the foundational tools that power … intelligent and engaging user experiences across multiple business verticals. This is an exciting opportunity for a Senior Software Engineer with expertise in GenAI and platform engineering to contribute as a hands-on technical leader. You will help shape the next generation of AI-driven services by building ...

scale up our tech team with the very best engineers to supercharge our growth. We are looking for a bright, driven, full-stack Senior Software Engineer who is excited about solving complex problems and building scalable platforms. The role As a Senior Software Engineer … Understand complex business problems then propose and implement technical solutions Have input into the architecture, working closely with the Head of Technology and other senior team members Work with other engineers and the business to improve user experiences Bring your experience and enthusiasm to our engineering culture Promote excellence ...