76 to 100 of 264 Software Engineer Jobs in London

Software Engineer – AI Startup – Up to 85k 🚀🧠 💰 Salary: £50,000 - £85,000 + meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 1/2 days in office 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team … 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 ...

Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software systems. This role involves … mentoring junior engineers, collaborating with cross-functional teams, and driving the adoption of best practices in software development. Responsibilities Design, develop, and maintain complex software solutions, ensuring they are robust, secure, tested and scalable. Contribute to software architecture decisions, ensuring alignment with project and business goals. Mentor ...

Principal Full Stack Software Engineer Location: Hybrid - 1-2 days a week Salary: £110-130k + 10% Bonus Type: Permanent No Sponsorship Available Overview: We are seeking a Principal Full Stack Software Engineer to lead the design, development, and delivery of scalable, high-performance applications ...

Intelligence is on a mission to make AI safe and reliable for everyone. To help us achieve this, we're seeking a Front End Software Engineer to join our team! We're particularly looking for someone with strong front end engineering and Typescript experience and with some experience … office in London (Hammersmith). We're excited to have you contribute to our mission! Responsibilities: As a Safe Intelligence Front End Software Engineer, you will: Make key contributions to software development on our TypeScript-based frontend systems, primarily utilizing React to craft intuitive and highly functional ...

Energy Trading - Principal Software Engineer London About Indicium AI Indicium AI is trusted by the world's leading enterprises to deliver AI into production at scale. We are a global AI-native consultancy with proven experience across Financial Services, Energy & Utilities, Healthcare & Life Sciences, Retail & CPG, and Manufacturing. … including Anthropic, Databricks, AWS, OpenAI, and Microsoft - to deliver modern AI with speed and measurable impact. Overview Indicium AI are seeking an exceptional Principal Software Engineer to lead delivery of exciting engagements within our Energy & Commodities Trading sector. This role demands a unique combination of hands‐on technical ...

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 … 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 scalable infrastructure ...

Intelligence is on a mission to make AI safe and reliable for everyone. To help us achieve this, we're seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang experience and with some experience of TypeScript and React … week in the in our London office. We're excited to have you contribute to our mission! Responsibilities : As a Safe Intelligence Full Stack Software Engineer, you will: Engineering of Golang-based backend systems , focusing on API development and integration. Contribute significantly to software development ...

Ruby on Rails Engineers | Lead Engineer + Software Engineers Location: Flexible across the UK | London attendance required twice per month We are currently supporting a leading FTSE 100 organisation undergoing significant digital transformation, looking to strengthen its Home Finance Product Engineering team with three permanent hires … Lead Engineer • 2 x Software Engineers These roles sit within a product engineering function responsible for the platforms that support mortgage origination and servicing capabilities. This is an opportunity to work on large-scale, business-critical systems while helping shape the future of a modern, engineering-led environment. ...

Principal Robotics/C++ Software Engineer London (Hybrid) Define how a complex, real‐world system scales — technically and organisationally. At sees.ai, we’ve built a system that enables unmanned aerial systems to carry out inspections of critical national infrastructure, making these missions repeatable, scalable, and commercially viable … scaling that system into a robust, production platform and building the engineering organisation around it. We’re looking for a Principal Robotics/C++ Software Engineer to lead that transition. The Role This role goes beyond a typical senior engineering position. You’ll be responsible for shaping ...

Java 8 Software Engineer | £500 – £550 | Inside IR35 | 6 Months | Hybrid Remote We’re recruiting for experienced Java Engineers with strong experience working with Legacy Java versions (Ideally Java 8). This 6-Month contract is determined as Inside IR35 and is offered on a Hybrid remote basis … Responsibilities Design, implement, and thoroughly test new enhancements across the platform Lead feature development from initial concept through to final delivery Produce high-quality software that consistently meets performance expectations Resolve technical issues promptly to ensure continued platform stability Contribute ideas that evolve and improve the overall product architecture ...

Software Engineer £700 per day (inside ir35) Contract until Jan 2027 with 1 year extension expected. Responsibilities Develop quality software and web applications in Python and C# Process file automation - Extracting, Loading and Transforming workloads Analyse and maintain existing software applications Design highly scalable, testable code ...

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, you will ...

Senior Flight Software Engineer £65,000 (flexible depending on experience) Competitive Benefits Package Remote, UK Permanent We are looking for a talented Senior Flight Software Engineer to join a fast-growing AI and robotics safety startup. The business is expanding its engineering team as it continues … optimal performance. Their solutions focus on robotics and AI applications where reliability and safety are critical. You will play a key role in developing software components that enable the safe and reliable operation of autonomous robotic systems within the wider robotics platform. Working closely with embedded systems, AI/ ...

seeking a UK-based PHP Full Stack Software Engineer to support the continued growth of our sustainability and digital learning platforms. You ll be a hands-on developer who enjoys building modern, responsive user experiences, writing clean, scalable code, and collaborating closely with designers and cross-functional teams. … platforms that deliver meaningful impact at scale, improving the learning experience for thousands of users. The Role at a Glance: PHP Full Stack Software Engineer Old Street, London/Hybrid Working/1 day a week in the office £70,000 - £80,000 Plus fantastic benefits: 8% employer ...

seeking a UK-based PHP Full Stack Software Engineer to support the continued growth of our sustainability and digital learning platforms. You’ll be a hands-on developer who enjoys building modern, responsive user experiences, writing clean, scalable code, and collaborating closely with designers and cross-functional teams. … platforms that deliver meaningful impact at scale, improving the learning experience for thousands of users. The Role at a Glance: PHP Full Stack Software Engineer Old Street, London/Hybrid Working/1 day a week in the office £70,000 - £80,000 Plus fantastic benefits: 8% employer ...

seeking a UK-based PHP Full Stack Software Engineer to support the continued growth of our sustainability and digital learning platforms. You’ll be a hands-on developer who enjoys building modern, responsive user experiences, writing clean, scalable code, and collaborating closely with designers and cross-functional teams. … platforms that deliver meaningful impact at scale, improving the learning experience for thousands of users. The Role at a Glance: PHP Full Stack Software Engineer Old Street, London/Hybrid Working/1 day a week in the office £70,000 - £80,000 Plus fantastic benefits: 8% employer ...

Have you built low-latency, high-performance systems and want to work at the cutting edge of crypto trading infrastructure? Senior Software Engineer (C++) - Crypto Trading Salary: up to £185k + bonus + RSUs Location: Fully Remote We are delighted to be continuing our partnership with a globally … within a low-latency, high-throughput environment serving millions of users and institutions worldwide. They are looking for the following experience in Senior Software Engineers: Strong C++ development (5+ years) Low latency, high-performance systems Highly concurrent/distributed systems (Linux environment) Experience within trading, financial markets, or crypto ...

member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. JOB DETAILS JOB TITLE: Software Engineer JOB REF: 41122 JOB BAND: C CONTRACT TYPE: Permanent DEPARTMENT: BBC Product Group - Data platform LOCATION: Newcastle - Hybrid (1-2 days per week … collaborating with experts from around the world. That's what it means to work with the STREAM Team. We're not just building software - we're creating a platform for change, one line of code at a time. WHY JOIN THE TEAM Join the BBC's STREAM team ...

Software Engineer – Platform/Core Infrastructure London 4 days a week on site Up to £110k We’re working with a London-based fintech that has scaled rapidly in a short space of time. Their platform now processes billions in annual transaction volume , operating across multiple markets … usability, and reliability matter. What you’ll actually be doing Building a self-service internal platform used across multiple teams Reducing friction in the software lifecycle - from local dev → deploy → production Improving developer experience (DevEx) by simplifying workflows and abstractions Developing cloud-native tooling and platform services Contributing ...

Software Engineer – Consumer Tech - Product Centric 📍 London (Hybrid, 3 days/week) 💰 £70-85k + Equity 🔧 React, Node, Next, TypeScript, AI tools (Full Stack) 👥 100,000s Paying Subscribers | Bootstrapped | Fast Growth I’m working with a high-growth consumer tech startup that’s built … passionate, engaged community already in place, giving them the best chance a start up could have for success! They’re hiring a Full Stack Engineer to help drive the next stage of growth across both product and community with new and exciting Greenfield builds. 🌱 Who they’re looking ...

Software Engineer Contract to Permanent Hybrid (London) Rates negotiable Most backend systems look fine on paper until they hit production. This role is about building services that actually work at scale, under real user demand. Why This Role Leading major media/streaming end client Real production impact ...

Software Engineer | Full Stack 🎯 Prop-tech startup tackling one of the UK’s most broken systems using AI-powered technology to drive real innovation.... watch this space🏡 The team is now looking to hire their 4th Engineer. They’re looking for someone who goes beyond simply executing tickets … takes the time to think critically about why and how things should be built. What they're looking for: 4-6 years experience in Software Engineering (with 2+ years ideally using Next.js + Node.js) AI-first mindset, you use Claude Code, Cursor, and similar tools as a matter ...

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 ...

Software Engineer - Platform/Core Infrastructure London 4 days a week on site Up to £110k We're partnering with a rapidly scaling fintech that has transformed its market in just a few years. Their payments platform processes billions in transactions annually , supporting a growing customer base across ...

looking for a Senior Embedded Software Engineer to develop advanced, real-time software solutions for complex systems. You will be responsible for delivering software from initial concept through to fully verified solutions, working across the full development lifecycle. Key Responsibilities Design, develop, and maintain high-quality … software using best engineering practices Take ownership of software development from requirements through to verification and validation Support and enhance existing software in line with evolving project and customer needs Contribute to system architecture, design reviews, and technical decision-making Collaborate with multidisciplinary teams including systems, hardware ...