1 to 25 of 106 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 07704 152 640/0203 854 0120 or email WHO WE ARE? We are recruiting Senior and Lead Software Engineers to work with a multi-national, industry leading ...

Senior Software Engineer Node.js/AWS/React London (Hybrid, 3 days onsite) Are you the kind of Senior Software Engineer who enjoys taking something fast-and-scrappy and turning it into something scalable, elegant, and genuinely robust? This is a chance … Senior Software Engineer to join a small, but ambitious tech-for-good/IoT startup based in the London City Centre thats building products to make sense of massive data streams. Youll be part of a tight-knit team (around ten people total, five software engineers ...

Senior Software Engineer, .Net London Permanent To £95k + bonus + benefits Senior Software Engineer, .NET Remote/London to £95k + bonus + benefits .Net, Back End, Azure, microservices Senior .NET Software Engineer is required by fintech company who provides … cutting-edge systems to the Banking and Financial Services sector. We are seeking a skilled Senior Software Engineer with extensive .NET experience to become a member of their vibrant team and help them achieve their development goals. You will work on the planning, design, and management ...

Senior Software Engineer (TypeScript Full Stack) London/WFH to £100k Do you enjoy problem solving and working with a range of technologies including functional programming languages such as Elixir, using the right tool for the job? You could be progressing your career in a senior, hands-on Software Engineer role at a successful and profitable energy trading market data scale-up. What's in it for you: Competitive salary, to £100k + Significant Equity Hybrid working (3 days London office per week) Vitality Healthcare Continuous career development and learning opportunities Influential role ...

Senior Software Engineer £80000-100000 GBP Equity Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Senior Software Engineer - SaaS and Payments London (4 days onsite) £80,000 to £100,000 base plus package A high-growth B2B fintech scale-up transforming … complex industries handle payments and financial workflows are growing their engineering team! They're profitable, well-funded, and engineering-led, and as their newest Engineer you'll shape their core platform and take ownership of critical features. This is a hands-on senior role where you can influence ...

Title: Senior Embedded Software Engineer Location: London (Hybrid- 1-2 Days) Duration: Fixed term contract Job Overview: Scope of Work Client is seeking a Senior Embedded Software Engineer to support development activities for a complex Adaptive SoC design targeted toward a high-speed networking … engagement will be for an initial term of six (6) months , with the potential for extension based on project needs and performance. Role Required Senior Embedded Software Engineer Scope of Work The selected engineer will be responsible for developing, integrating, and debugging embedded software running ...

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 ...

Senior Software Engineer/Developer (Python TypeScript) London/WFH to £120k Are you a technologist with start-up experience looking for your next opportunity? You could be progressing your career at a tech start-up that is producing an AI native data pipelining platform. … Senior Software Engineer within a small team, you will build and implement new features across the full tech stack, with a focus on backend Python and TypeScript and some React work on the front end. You'll take ownership and work across the full development lifecycle, collaborating ...

Senior Software Engineer/Developer (Python TypeScript) London/WFH to £120k Are you a technologist with start-up experience looking for your next opportunity? You could be progressing your career at a tech start-up that is producing an AI native data pipelining platform. … Senior Software Engineer within a small team, you will build and implement new features across the full tech stack, with a focus on backend Python and TypeScript and some React work on the front end. You'll take ownership and work across the full development lifecycle, collaborating ...

Senior Software Engineer (Node.js) Location: Hybrid working in London (3 days p/week) Salary: £Up to £120k + options Are you passionate about using technology to tackle real-world sustainability challenges? As a Senior Software Engineer (Node.js), you’ll be at the heart … proficiency in Node.js, JavaScript/TypeScript. Solid understanding of distributed or event-driven systems. Experience with cloud platforms, AWS ideally. If you’re a Senior Software Engineer (Node), looking to work in an early stage start-up, please apply. ...

Vacancy Are you a Senior Software Development Engineer looking to join a company where your work truly makes a difference? Where you're empowered to innovate, collaborate, and help shape the future of healthcare technology? Then this could be the opportunity for you. We're looking … talented Senior Software Development Engineer to join our EMIS-X Analytics team and help us build solutions that improve the lives of healthcare professionals and patients across the UK. This role focuses on solving Data Engineering challenges to enable NHS and other healthcare users to harness ...

Vacancy Are you a Senior Software Development Engineer looking to join a company where your work truly makes a difference? Where you're empowered to innovate, collaborate, and help shape the future of healthcare technology? Then this could be the opportunity for you. We're looking … talented Senior Software Development Engineer to join our EMIS-X Analytics team and help us build solutions that improve the lives of healthcare professionals and patients across the UK. This role focuses on solving Data Engineering challenges to enable NHS and other healthcare users to harness ...

Your Mission Join us as a Senior Software Engineer and help build the future of mission-driven giving! 🚀 We’re looking for a highly capable Senior Engineer who thrives in early-stage environments and enjoys owning complex problems end-to-end. You’ll work closely … architectural discussions and decisions, identifying long-term risks and opportunities for the platform. Continuously improve performance, tooling, workflows, and overall developer experience across the software lifecycle. Document with clarity so technical knowledge is complete, accurate, and useful for internal and external stakeholders. Enforce best practices across the team, including ...

Senior Software Engineer (C++) – Real-Time Market Data Systems Company Insight: A leading global quant trading firm is looking for a senior software engineer experienced in market data processing to help evolve the firm's real-time market data platform - a critical system that … Responsibilities: Build and enhance real-time market data and distribution pipelines spanning global markets and multiple asset classes. Design and optimise high-performance, distributed software systems for processing market data at scale. Champion engineering best practices and innovation. Serve as a technical leader in market data systems. Apply data ...

Senior Software Engineer £80000-100000 GBP Equity Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Senior Software Engineer - SaaS and Payments London (4 days onsite) £80,000 to £100,000 base plus package A high-growth B2B fintech scale-up transforming ...

Senior Software Engineer (.NET) Up to £115k + Benefits | London | Hybrid Omnis Partners are partnering with a high-growth technology organisation that is redefining how merchants leverage data, analytics, and AI to understand performance and accelerate revenue growth. We're looking for a Senior Software Engineer (.NET) to join the central Data & AI team. You'll build scalable backend services, APIs, and data pipelines that transform millions of transactions into actionable insights for merchants. This is a greenfield opportunity to shape systems that scale, drive AI-enabled analytics, and make a real impact ...

Title: Senior Software Engineer (C) Location: Fully Remote (UK) Salary: £90,000 - £110,000 per annum (DOE) Are you a systems-focused engineer with a passion for virtualisation and fullstack development? We're hiring a Senior Systems Engineer to join a UK-based tech … company that's building innovative solutions across storage, networking, and compute virtualisation. About the Role As a Senior Embedded Software Engineer, you'll be responsible for developing and maintaining a fullstack virtualisation software platform. You'll work across the full software development lifecycle, from prototyping ...

Title: Senior Software Engineer (C) Location: Fully Remote (UK) Salary: £90,000 - £110,000 per annum (DOE) Are you a systems-focused engineer with a passion for virtualisation and fullstack development? We're hiring a Senior Systems Engineer to join a UK-based tech … company that's building innovative solutions across storage, networking, and compute virtualisation. About the Role As a Senior Embedded Software Engineer, you'll be responsible for developing and maintaining a fullstack virtualisation software platform. You'll work across the full software development lifecycle, from prototyping ...

Senior Software Engineer, Python, TypeScript, React - Elite engineering team **this role will come with a competitive salary , benefits and equity** A Series C funded fintech scale-up who has just raised over £350million and now valued at over £700million is hiring a number of Senior/… Lead Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to an organisation that has tripled revenues over the past 2 years and is being classed as one of the next Unicorns. The company operates at the intersection of technology ...

Senior Golang Software Engineer - AI Scale-up - Voice AI (Permanent - flexible salary) Senior Golang Software Engineer is now required by an Innovative AI scale up to build the strategic architecture platform for their AI product offering This role will be responsible for building … device storage for sensitive data. Collaborate with Back End engineers to successfully integrate RESTful APIs for data collection and AI services. Key Requirements: Strong Senior Software Engineer experience Exceptional Go/Golang skills Experience working across low-latency and zero trust platforms Experience across more than ...

client - a London based software company are seeking an experienced Senior Software Engineer to join their product development team. You'll be at the heart of developing modern, performant applications across web, tablet, and mobile platforms. As a Senior Software Engineer you will … able to deliver effectively on both Outsystems and.NET and will be working with architects to deliver great user experiences and secure integrations for software used by external clients. We're looking for someone with strong, demonstrable expertise of at least 4 years Outsystems and at least 3 years .NET. ...

Summary As part of the M&S Software Engineering team, you’ll be joining a well-loved historic brand, working on solutions that serve millions of loyal customers and thousands of colleagues! With ethical values that run right through the company’s core and technology leaders that truly understand … software engineers and engineering, it’s an exciting time as we’re redefining ourselves into a digital first and engineering-led organisation, with the quality of our engineering team being a key differentiator. As a Staff Software Engineer, your expertise will help us on this journey, creating ...

Senior Software Engineer (Java) – Portfolio Optimization | Fintech | London/Hybrid About My Client My client is a high-growth fintech company transforming the way capital markets operate. Their mission is to make global financial systems safer, more efficient, and more open, using advanced technology and deep domain … develop intelligent solutions that optimise portfolios, reduce risk, and unlock access to more diversified capital. About the Role My client is seeking a Senior Software Engineer to join their Portfolio Optimization team — a core group responsible for building the technology that drives their balance-sheet and exposure ...

Description Senior Software Engineer (iOS) Function: Technology Location: London Curious about what's next? So are we. Join Compare the Market and help to make financial decision making a breeze for millions. At Compare the Market, we're a purpose-driven business powered by tech and AI. … love accountability, embrace challenge, and want to make a real difference, you'll fit right in. What You'll Be Doing As a Senior Software Engineer (iOS) atCompare the Market, you will drive the technical direction within the iOS Mobile team delivering first class mobile solutions ...

FactSet creates flexible, open data and software solutions for over 200,000 investment professionals worldwide, providing instant access to financial data and analytics that investors use to make crucial decisions. At FactSet, our values are the foundation of everything we do. They express how we act and operate, serve … anticipating our clients' needs and exceeding their expectations. Role/Department Description The Content Integration Framework team is seeking a talented, motivated Senior Software Engineer with strong Python and SQL skills. This team, part of Data Solutions Engineering, is at the forefront of transforming how FactSet ingests ...