1 to 25 of 266 Software Engineer Jobs in London

fantastic opportunity for talented Software Developers, to join an industry-leading software company in either London or Cambridge offering the opportunity to work on a wide variety of web application infrastructure projects using a diverse toolset, with an emphasis on JavaScript, Node.js and related frameworks. Location: London … Cambridge (3 days on site, 2 days remote) Salary: Negotiable + comprehensive benefits Requirements for Application Software Engineer: History of academic excellence including a 2:1 or 1st class honours degree from a leading university plus AAB at A Level (or equivalent UCAS points) Solid commercial experience using ...

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 solutions ...

Senior C++ Developer/Software Engineer - London Based in the City of London (2 days in the office)/6 months rolling/£750 per day (Inside IR35) A global leading fintech solutions company and member of the Fortune 500, seek an experienced Senior C++ Developer/Software Engineer, to be responsible for preparing programming assignments, including the design, planning and supervision of the implementation of large-scale system projects. This will include: Reviews, analysing, and modifying programming systems including encoding, testing, debugging and installing for a large-scale Mainframe computer system. Essential Duties and Responsibilities ...

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 for a 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), working ...

Senior Software Engineer | Up to £650 Outside IR35 per day | 12-month contract Senior Software Engineer Type: Remote - UK Rate: Up to £650 per day Outside IR35 A renowned cybersecurity company is searching for a driven Senior Software Engineer to assist their enterprise … hosted on public cloud platforms. You will design and deploy robust frontend client, backend services, infrastructure automation, and cloud-native solutions by utilising your software development knowledge and your DevOps proficiency across AWS and GCP. Desired Skills: Golang GCP, AWS Kubernetes (cloud-native), Terraform This is a great opportunity ...

Working for an industry leading, high-growth SaaS business, the Senior Software Engineer will build innovative next-gen solutions that are at the forefront of the industry. In this role, the Senior Software Engineer will be given full autonomy, taking ownership from design phase through … backend experience). This area is the future of the company (and the industry!) and as such has strong investment and visibility. The Senior Software Engineer will be responsible for leading the design, build and deployment of industry leading software solutions. You’ll work in collaboration with ...

Software Engineer/Developer (Python SQL Automation) London/WFH to £70k Are you a technologist Software Engineer looking to work on complex and interesting systems whilst continually learning and progressing your career in a diverse, supportive environment of innovation that empowers individuals to succeed … technology company that is producing game changing products using AI and parallel processing for data, video, imaging and point cloud compression. As a Software Engineer you'll join an Agile team responsible for developing and maintaining new features and integrations for the Visual Quality test framework to ensure ...

Software Engineer/Developer (C# .Net) London onsite to £90k Are you an experienced C#, backend focussed Software Engineer? You could be progressing your career in a hands-on, backend focussed Software Engineer role at a global sports trading firm, earning substantial bonuses. What … based on personal performance (10-25%) Professional development Pension Health Insurance Gym membership Social events, free fruit, snacks, coffee etc. Your role: As a Software Engineer within the trading engine team you'll collaborate to design and develop real-time trading systems, you'll often be collaborating with ...

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? Looking … 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 leading ...

Lead Software Engineer | Distributed Systems | Sustainable Cloud Native Platform 💸Up to £130,000 per annum plus bonus plus stock 🏠Central London office 🖱️Golang, Rust, C, Kubernetes, Linux, Cloud Native, Distributed systems... Are you a Lead Software Engineer with extensive knowledge of building distributed systems? Looking … so... I'm partnered with a very exciting Cloud scale-up who have received record Series A funding and are looking for innovative Lead Software Engineers to join their ambitious team! With a new VP of Engineering who has spent much of their career building out a world leading ...

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 … 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 of their Back End development in your ...

exciting opportunity has arisen for a Senior Software Engineer to join a well-established biotech company using large-scale genetic data and AI to predict disease risk and advance precision healthcare. As a Senior Software Engineer , you will be contributing to the development and scaling … secure, reliable software in a collaborative, agile environment. This is a contract-based role (12 weeks) offering hybrid/remote working options, a salary range of £500 - £700 per day (Inside IR35) and benefits. You will be responsible for: Building and scaling new software products within an agile ...

exciting opportunity has arisen for a Senior Software Engineer to join a well-established biotech company using large-scale genetic data and AI to predict disease risk and advance precision healthcare. As a Senior Software Engineer , you will be contributing to the development and scaling … secure, reliable software in a collaborative, agile environment. This is a contract-based role (12 weeks) offering hybrid/remote working options, a salary range of £500 - £700 per day (Inside IR35) and benefits. You will be responsible for: Building and scaling new software products within an agile ...

Software Engineer, GraphRAG, TypeScript, AWS, Remote, CO7428A A pre-seed start-up building a workflow and intelligence platform powered by agentic AI, multimodal analysis and domain-specific insight, requires an AI Software Engineer/Knowledge Graph Specialist. The AI Software Engineer will be contracted … month as they complete the build of their MVP, but with every expectation of extending. Working fully remotely and outside of IR35, the AI Software Engineer will: Own the architecture for the module being built Work directly with the CTO and product specialists to translate requirements into scalable ...

Software Engineer – Custom Software (Android) London Office Hybrid working – approx. 20% onsite URGENT contract - Initial 4 months with high likelihood of extension We’re looking for a Software Engineer with strong Android expertise to join a high-impact custom software team delivering solutions … collaborative, agile environment. You’ll be part of a well-established engineering team, contributing to the design, development, and enhancement of bespoke software applications tailored to specific client needs. While hands-on development is key, this role also carries responsibility for technical decision-making, collaboration across teams, and supporting ...

Software Engineer, GraphRAG, TypeScript, AWS, COR7427 An exceptional opportunity for an AI Software Engineer/Knowledge Graph Specialist, to join an early stage start-up, building a workflow and intelligence platform powered by agentic AI, multimodal analysis and domain-specific insight. What will I be doing … Software Engineer will own the end-to-end architecture and execution of my client's flagship analysis application. Driving the projects in a hands-on role, the AI Software Engineer will be the technical authority for complex AI systems, ensuring that what is built ...

Senior Software Engineer Cheltenham or London (Hybrid - 2 days a week onsite) Up to £80,000 + excellent benefits We’re working with a specialist secure technology consultancy supporting some of the UK’s most security-conscious organisations. They’re looking for a Senior Software Engineer who enjoys solving meaningful problems, working with modern technology, and building software that genuinely matters. This role offers exposure across the full software lifecycle, from idea to live service, in an environment that values clear thinking, adaptability, and collaboration over rigid process. What you’ll be doing ...

Senior Software Engineer Location: UK-wide (Fully Remote) Level: Senior Join a fast-growing consultancy delivering digital transformation across the public sector. We're looking for a Senior Software Engineer who combines technical expertise with strong collaboration and communication skills. This is a chance to work … complex, high-impact projects while helping shape best practices in a dynamic, client-facing environment. As a Senior Software Engineer, you'll design and develop robust, scalable software solutions, contribute to architecture decisions, and mentor junior engineers. You'll work closely with product managers, UX/ ...

Senior Software Engineer 📍 Location: Onsite, London, United Kingdom ⌛ Type: Full-time 💰 Compensation: Negotiable (Competitive salary + equity) About Ontik Ontik is an ambitious, early-stage B2B financial operations platform designed to streamline and simplify complex financial workflows for heavy duty industries. We’re scaling rapidly and looking … high-performance, ownership-driven environment, where you can make a direct impact on the product and help shape its future. Role overview As a Software Engineer (Full-Stack) at Ontik, you’ll play a pivotal role in building and scaling our financial operations platform. This is a hands ...

Lead Software Engineer Location: UK-wide (Fully Remote) Level: Lead Join a fast-growing consultancy that's shaping the future of public services and digital transformation. We're looking for a Lead Software Engineer who combines technical excellence with strong leadership and communication skills. This … opportunity to work on high-profile projects that make a real impact, while helping to scale and innovate. As a Lead Software Engineer, you'll guide a talented team through complex challenges, ensuring best practices and fostering a culture of collaboration. You'll work closely with product managers ...

Senior Python software engineer - with strong Maths background Are you a software engineer who thrives on building robust, scalable products with a strong foundation in mathematics and analytics? We’re specifically looking for an engineer—not a data scientist—to join ScanmarQED as a Senior … Python Software Engineer and play a key role in developing the core technology behind our Pulse platform—a product used by leading companies worldwide to solve complex optimization and modeling challenges. You’ll collaborate with an international team, take ownership of product modules, and help drive innovation ...

this is wrong and we are on a mission to fix it, triggering the future of hardware design. We are creating an entirely new software engine for circuit boards, that takes as inputs the requirements of a circuit board and automatically outputs a complete design, ready for manufacture. … Lead Software Engineer, you’ll create simple and elegant solutions to difficult technical problems that the world has not solved before. You will work in close collaboration with a highly-functioning team of software, electronics, algorithm engineers and product managers. Responsibilities Collaborate with the product team ...

C++ Software Engineer - Fully Remote - Up To £200k We're currently working with a global leader in software development, offering a fully remote position for a Senior Software Engineer specializing in C++. They are experiencing an exciting period of growth and are looking to bring … working independently Strong communicator If this does look like something that could be of interest please apply as interviews are being scheduled! C++ Software Engineer - Fully Remote - Up To £200k ...

Cyber Software Engineer - SC/DV/eDV Cleared New Permanent Opportunity for Cyber Software Engineers in London with Security Clearance to work on Mission-Critical, National Security projects Role: Cyber Software Engineer Location: London (hybrid) Clearance: SC, MOD DV or eDV (must be held … eligible) To apply : Email: We are looking for a Cyber Software Engineer to join a team delivering high-assurance cyber capabilities into UK defence and national security environments. This role is focused on operational technology (OT) cyber projects , working close to real systems and real users. ...

Senior Software Engineer Key Technologies: C#, .NET, React, JavaScript, Typescript, AWS, Docker City of London, United Kingdom Perm Role: £80,000 - £120,000 Harrington Starr has partnered with a Global Financial Services Vendor and they are looking for a Senior C#, .NET Software Engineer to join … UK. This role offers hybrid working, with an office location based in the City of London. This role will suit a Senior Software Engineer, with expert C#, .NET experience having a direct impact from the get-go. ...