1 to 25 of 487 Software Engineer Jobs in the City of London

Staff Software Engineer – THE AI Scale-Up of 2025 | Future Unicorn Up to £160,000 plus excellent stock options London – 2 days a week Next.js | React | Typescript | Node | Python Are you a product-focused Staff Software Engineer who enjoys autonomy and wants to build products from end-to-end? If so, read on... Staff Software Engineer – We have been exclusively engaged by one of the most exciting tech scale-ups in the UK, who are looking for a Staff Software Engineer as they grow significantly in 2025. They are well-funded, revenue-generating and have found product market fit for their industry disrupting, AI-powered SaaS platform. The Staff Software Engineer will have a high degree of autonomy, using modern technology like Next.js, React, Typescript/Node and Python to design and build new products and features across the stack, making decisions to deliver outstanding user experience to their customers. They believe in building fast and iterating, working closely with product and customers, to evolve their cutting-edge More ❯

Senior Full Stack Software Engineer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly … financial products to consumers. The organisation is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Senior Full Stack Software Engineer - Responsibilities Design, develop, and maintain advanced applications. Collaborate with cross-functional teams to define, design, and ship new features. Guiding and develop the skills of junior engineers. Optimize … Troubleshoot and debug to optimize performance. Provide code reviews, feedback, and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols Senior Full Stack Software Engineer - Experience Required Proven experience as a Senior Full Stack Developer or similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless More ❯

Senior Full Stack Software Engineer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly … financial products to consumers. The organisation is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Senior Full Stack Software Engineer - Responsibilities Design, develop, and maintain advanced applications. Collaborate with cross-functional teams to define, design, and ship new features. Guiding and develop the skills of junior engineers. Optimize … Troubleshoot and debug to optimize performance. Provide code reviews, feedback, and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols Senior Full Stack Software Engineer - Experience Required Proven experience as a Senior Full Stack Developer or similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless More ❯

Full Stack Software Engineer Up to £70,000 DOE + Benefits Mostly remote – 1 day onsite in London every fortnight Must be eligible for SC Clearance Full Stack Software Engineer – Java/AWS Join a forward-thinking consultancy supporting high-profile UK Government projects ABOUT THE CLIENT Our client is a specialist software consultancy delivering … cutting-edge solutions that empower UK Government and National Security organisations. Their teams tackle complex operational challenges through innovative software design, modern development practices, and close client collaboration. Due to continued growth and new project wins, they are seeking a talented Software Engineer to join a long-term Central Government project. THE BENEFITS Up to … training and continuous professional development Collaborative, inclusive, and Agile working environment Regular team socials and networking events 25 days holiday + bank holidays + buy/sell options THE SOFTWARE ENGINEER ROLE: As a Software Engineer , you’ll work in an Agile team building bespoke, secure, and scalable software solutions. You’ll collaborate with cross More ❯

Full Stack Software Engineer Up to £70,000 DOE + Benefits Mostly remote – 1 day onsite in London every fortnight Must be eligible for SC Clearance Full Stack Software Engineer – Java/AWS Join a forward-thinking consultancy supporting high-profile UK Government projects ABOUT THE CLIENT Our client is a specialist software consultancy delivering … cutting-edge solutions that empower UK Government and National Security organisations. Their teams tackle complex operational challenges through innovative software design, modern development practices, and close client collaboration. Due to continued growth and new project wins, they are seeking a talented Software Engineer to join a long-term Central Government project. THE BENEFITS Up to … training and continuous professional development Collaborative, inclusive, and Agile working environment Regular team socials and networking events 25 days holiday + bank holidays + buy/sell options THE SOFTWARE ENGINEER ROLE: As a Software Engineer , you’ll work in an Agile team building bespoke, secure, and scalable software solutions. You’ll collaborate with cross More ❯

Staff Software Engineer – Platform – Own the strategy to support massive expansion Up to £170,000 plus benefits London Office – 4 days a week Golang, AWS/GCP, Kubernetes, Distributed Systems Staff Software Engineer - We’re working with a high-growth payments business that has disrupted the market to become a major player in Europe. With over … customers and billions processed annually, they are scaling rapidly — and now looking for an experienced Staff Software Engineer to join their Platform organisation. This is a senior technical leadership role, ideal for someone who enjoys working across multiple squads, setting technical strategy, and driving clarity in ambiguous problem spaces. The client is looking for an established Staff-level … Software Engineer with both hands-on engineering expertise and the ability to influence at scale across an organisation. The Opportunity Shape the long-term technical direction of platform infrastructure. Lead cross-squad initiatives and empower teams to solve complex challenges. Drive innovation around cloud-native technologies and platform automation. Balance strategic vision with ~30% hands-on coding and More ❯

Staff Software Engineer – Platform – Own the strategy to support massive expansion Up to £170,000 plus benefits London Office – 4 days a week Golang, AWS/GCP, Kubernetes, Distributed Systems Staff Software Engineer - We’re working with a high-growth payments business that has disrupted the market to become a major player in Europe. With over … customers and billions processed annually, they are scaling rapidly — and now looking for an experienced Staff Software Engineer to join their Platform organisation. This is a senior technical leadership role, ideal for someone who enjoys working across multiple squads, setting technical strategy, and driving clarity in ambiguous problem spaces. The client is looking for an established Staff-level … Software Engineer with both hands-on engineering expertise and the ability to influence at scale across an organisation. The Opportunity Shape the long-term technical direction of platform infrastructure. Lead cross-squad initiatives and empower teams to solve complex challenges. Drive innovation around cloud-native technologies and platform automation. Balance strategic vision with ~30% hands-on coding and More ❯

Senior to Principal Software Engineer | Mission-led Fintech - Hybrid London Here’s the thing. If you’re a Senior, Staff, or Principal Software Engineer who wants serious impact without the ego-fest, this will probably speak to you. I’m partnering with a fast-growing fintech that helps millions manage how they earn, save, and spend … and data you can do something with. Proper ownership. Fast cycles, low ceremony, and room to shape architecture while mentoring others. What you’ll work with as a Staff Software Engineer Stack: Python, TypeScript, React, Svelte, PostgreSQL, Snowflake, AWS. Setup: Cross-functional squads that care about outcomes, not ticket-ticking. You’ll improve scalability, evolve architecture, and still … days annual leave, enhanced parental benefits, private healthcare Sabbatical and volunteering leave Tax-efficient pension and flexible benefits schemes If you’ve been looking for a Principal or Senior Software Engineer role in London where you can build for scale and feel good about the outcome, let’s talk. Drop me a message here or email your CV. More ❯

Senior to Principal Software Engineer | Mission-led Fintech - Hybrid London Here’s the thing. If you’re a Senior, Staff, or Principal Software Engineer who wants serious impact without the ego-fest, this will probably speak to you. I’m partnering with a fast-growing fintech that helps millions manage how they earn, save, and spend … and data you can do something with. Proper ownership. Fast cycles, low ceremony, and room to shape architecture while mentoring others. What you’ll work with as a Staff Software Engineer Stack: Python, TypeScript, React, Svelte, PostgreSQL, Snowflake, AWS. Setup: Cross-functional squads that care about outcomes, not ticket-ticking. You’ll improve scalability, evolve architecture, and still … days annual leave, enhanced parental benefits, private healthcare Sabbatical and volunteering leave Tax-efficient pension and flexible benefits schemes If you’ve been looking for a Principal or Senior Software Engineer role in London where you can build for scale and feel good about the outcome, let’s talk. Drop me a message here or email your CV. More ❯

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 … 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 on a genuinely greenfield platform with a modern stack and zero legacy The focus now is on maturing the codebase re-architecting, refactoring, testing, and scaling. As … a Senior Software Engineer, youll play a key role in helping the team evolve from early-stage speed to long-term stability, with the freedom to influence both product direction and engineering quality What youll be doing: Building and scaling a Node.js application that sits at the core of the product Designing and implementing new features for different More ❯

Java Software Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Java Software Engineer role:- You will be joining a fast-growing, research-driven company building an artificial intelligence using novel machine 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 of the best known technology companies today. You will have a great opportunity to work with a variety of … languages, frameworks and tools. Applicants will need a background in Java and/or Python with a focus on Server side technologies. Core skills for the Java Software Engineer: 5yrs in a commercial Development role Solid experience of Java Good knowledge of Cloud Technologies (AWS) and Microservices Strong database knowledge (SQL and NoSQL) Degree in Computer Science, Engineering More ❯

Java Software Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Java Software Engineer role:- You will be joining a fast-growing, research-driven company building an artificial intelligence using novel machine 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 of the best known technology companies today. You will have a great opportunity to work with a variety of … languages, frameworks and tools. Applicants will need a background in Java and/or Python with a focus on Server side technologies. Core skills for the Java Software Engineer: 5yrs in a commercial Development role Solid experience of Java Good knowledge of Cloud Technologies (AWS) and Microservices Strong database knowledge (SQL and NoSQL) Degree in Computer Science, Engineering More ❯

Senior Software Engineer | Blending Music, Science and Technology 💻 Senior Software Engineer 🎶 Incubated Startup - Combining Music, Science and Tech 💰 Up to £110,000 p/a + Equity ⚙️ Stack: Typescript, React, Node/Nest, AWS - FE Leaning (Rust in the stack) We're partnered with a groundbreaking company using advanced technologies and musical expertise to unlock new … music for media companies behind best known TV and Film soundtracks, they are looking to transform personalised musical experience for mindfulness and wellness. We are looking for a Senior Software Engineer, proficient in Typescript & React with some Node + AWS experience to join a founding team of customer-centric, cross functional engineers. If you are a Senior Software Engineer looking to join a growing company looking to use music, science and technology to transform wellbeing, this one is for you. Interested? Apply within or reach out to James for more information. Senior Software Engineer | Blending Music, Science and Technology More ❯

C++ Software Engineer – STL – UNIX - London 🌟 Miller Maxwell is assisting a Tier-1 electronic trading organisation that is expanding its team as part of their 2026 growth plan. They seek a talented C++ Software Engineer to join the client's London team. This role will be a key contributor to the enhancement of their electronic trading … ecosystem and surrounding environment. The client is part of a large investment banking group, one of the largest financial institutions globally. 🔧 Responsibilities for the C++ Software Engineer: 🤝 Assist: Support the engineering manager with the growth of the team in London and the US office. 🛠️ Develop: Define and be involved in development projects for their core real-time trading … with internal and external testing and engineering teams. 🤖 Automate: Assist with further advancements in platform automation. 📋 Manage: Take ownership of business and technical change requests. 📝 Design: Plan and document software changes. 🔍 Test: Conduct integration testing to ensure high-quality QA. 🎓 Requirements for the C++ Software Engineer: 🎓 STEM Background: A solid foundation in Science, Technology, Engineering, or Mathematics. More ❯

C++ Software Engineer – STL – UNIX - London 🌟 Miller Maxwell is assisting a Tier-1 electronic trading organisation that is expanding its team as part of their 2026 growth plan. They seek a talented C++ Software Engineer to join the client's London team. This role will be a key contributor to the enhancement of their electronic trading … ecosystem and surrounding environment. The client is part of a large investment banking group, one of the largest financial institutions globally. 🔧 Responsibilities for the C++ Software Engineer: 🤝 Assist: Support the engineering manager with the growth of the team in London and the US office. 🛠️ Develop: Define and be involved in development projects for their core real-time trading … with internal and external testing and engineering teams. 🤖 Automate: Assist with further advancements in platform automation. 📋 Manage: Take ownership of business and technical change requests. 📝 Design: Plan and document software changes. 🔍 Test: Conduct integration testing to ensure high-quality QA. 🎓 Requirements for the C++ Software Engineer: 🎓 STEM Background: A solid foundation in Science, Technology, Engineering, or Mathematics. More ❯

Working for an industry leading, high-growth SaaS business with some of the biggest brand names in the world as customers, 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 … systems (some frontend too, if you like). 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 product, design and the wider … engineering team to improve and scale existing features, as well as build brand new ones. The Senior Software Engineer will have: • Strong backend or full-stack software development experience • Strong coding experience in either Java, Golang (Go), Python or Scala – multiple would be even better! • Experience with cloud platforms e.g. AWS, Azure, GCP - Google Cloud • Experience with More ❯

Working for an industry leading, high-growth SaaS business with some of the biggest brand names in the world as customers, 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 … systems (some frontend too, if you like). 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 product, design and the wider … engineering team to improve and scale existing features, as well as build brand new ones. The Senior Software Engineer will have: • Strong backend or full-stack software development experience • Strong coding experience in either Java, Golang (Go), Python or Scala – multiple would be even better! • Experience with cloud platforms e.g. AWS, Azure, GCP - Google Cloud • Experience with More ❯

Lead Software Engineer Up to £110,000 + Bonus Central London - Hybrid Global Luxury Brand Node.JS, Typescript, AWS We’re supporting a global luxury brand with a mission to push boundaries in digital commerce innovation. They’re investing heavily in their tech ecosystem and are now looking for a Lead Software Engineer to take a key … CI/CD practices. You’ll work across multiple product teams, partner with DevOps and architecture, and mentor engineers to raise the bar on technical excellence. As a Lead Software Engineer you’ll be reviewing designs, solving complex engineering challenges, ensuring knowledge is shared effectively, and helping teams work smarter at scale. As a Lead Software Engineer … Strong Pension, Private Health Location: Central London - Hybrid (2 days per week onsite) Work in a collaborative, forward-thinking engineering culture This is a great opportunity for a Lead Software Engineer to join a leading global luxury brand with a large customer base! ** Unfortunately due to a high number of applications, not all applicants will receive feedback. More ❯

Lead Software Engineer Up to £110,000 + Bonus Central London - Hybrid Global Luxury Brand Node.JS, Typescript, AWS We’re supporting a global luxury brand with a mission to push boundaries in digital commerce innovation. They’re investing heavily in their tech ecosystem and are now looking for a Lead Software Engineer to take a key … CI/CD practices. You’ll work across multiple product teams, partner with DevOps and architecture, and mentor engineers to raise the bar on technical excellence. As a Lead Software Engineer you’ll be reviewing designs, solving complex engineering challenges, ensuring knowledge is shared effectively, and helping teams work smarter at scale. As a Lead Software Engineer … Strong Pension, Private Health Location: Central London - Hybrid (2 days per week onsite) Work in a collaborative, forward-thinking engineering culture This is a great opportunity for a Lead Software Engineer to join a leading global luxury brand with a large customer base! ** Unfortunately due to a high number of applications, not all applicants will receive feedback. More ❯

Contract role : Senior Software Engineer : Up to £475 per day Outside IR35 : 9 months rolling : Hybrid Monthly (London) An innovative digital consultancy is looking for experienced Senior Software Engineers to design and architect scalable, high-performance systems for a cutting-edge platform being developed for a major client. In this role, you’ll tackle complex technical challenges … as part of an agile team following Scrum methodologies. As a Senior Software Engineer, you’ll set the standard for code quality and best practices, actively contributing to code reviews and collaborative programming sessions with your team. As a Senior Software Engineer, you will be experienced with: C#, .Netcore JavaScript, React.js AWS Key information: Up to … per day Outside IR35 9 months rolling Hybrid Monthly (London) This is an exciting opportunity for a Senior Software Engineer to join a high-performing development team. Contract role : Senior Software Engineer: Up to £475 per day Outside IR35 : 9 months rolling : Hybrid Monthly (London) *Unfortunately, due to the high volume of applications, not all submissions More ❯

Role : Java Software Engineer 💰 Salary: Up to £95,000 +10% Bonus 🌍 Location: London (2 days a week) 🛠 Key Skills: Java 17+, SpringBoot, React/Typescript, AWS This is a great opportunity for a Senior Java Software Engineer to a travel experiences business. You’ll lead backend services and API integrations with a huge number of 3rd … a cross-functional team, being the go-to for these services and will contribute to architectural design and technology decision making across the product.. 🎯 Responsibilities as the Senior Java Software Engineer: Assume technical ownership of feature development end-to-end Advocate for best coding practices within the team Lead architecture decision making and technology decision making Design, build … review, test, and deploy services and code in live production environments Uphold development standards and prioritize best coding practices ✅ Experience needed as the Senior Java Software Engineer: Backend development experience, working with production level Java based applications Strong system architecture and system design skills Familiarity with cloud services (preferably AWS) A passion for ensuring best practices and coding More ❯

Role : Java Software Engineer 💰 Salary: Up to £95,000 +10% Bonus 🌍 Location: London (2 days a week) 🛠 Key Skills: Java 17+, SpringBoot, React/Typescript, AWS This is a great opportunity for a Senior Java Software Engineer to a travel experiences business. You’ll lead backend services and API integrations with a huge number of 3rd … a cross-functional team, being the go-to for these services and will contribute to architectural design and technology decision making across the product.. 🎯 Responsibilities as the Senior Java Software Engineer: Assume technical ownership of feature development end-to-end Advocate for best coding practices within the team Lead architecture decision making and technology decision making Design, build … review, test, and deploy services and code in live production environments Uphold development standards and prioritize best coding practices ✅ Experience needed as the Senior Java Software Engineer: Backend development experience, working with production level Java based applications Strong system architecture and system design skills Familiarity with cloud services (preferably AWS) A passion for ensuring best practices and coding More ❯

Backend Software Engineer/Developer (Windows C/C++, C#) London to £70k FTC Are you a skilled Backend Software Engineer with strong C++ skills? You could be progressing your career in a senior, hands-on role at a global market data provider whilst enjoying a range of perks and benefits. As a Backend Software Engineer you will join an Agile team focussed on building and maintaining Exchange Connectivity software systems that require real-time and low latency, maintaining data feeds and developing key underlying transport protocols for data transmission. The platform has been built with C++ and C# deploying to AWS and requires high scalability and low latency - they currently handle … commutable distance of London. Please note this is a 12 month Fixed Term Contract. About you: You have C/C++ development skills on Windows OS You have full software development lifecycle experience You have a good knowledge of networking protocols e.g. TCP/IP, multicast You have a strong grounding in Computer Science fundamentals e.g. multi-threading, OOP More ❯

Backend Software Engineer/Developer (C# .Net Core Cloud CQRS) London/WFH to £85k Are you a technologist with strong backend C# .Net skills? You could be progressing your career at in a senior, hands-on role Backend Software Engineer role at a successful and scaling Retail FX Brokerage working on complex and interesting Greenfield … systems with continual learning and self development opportunities. As a Backend Software Engineer you'll be designing and developing high quality, maintainable, and reliable code for a real-time, low latency trading systems built mostly in C# and React deployed to Azure. You'll focus on C# .Net backend development within an AWS environment, but also with exposure … TypeScript/React.js or Angular You have strong analytical and problem solving skills You're collaborative with excellent communication skills What's in it for you: As a Backend Software Engineer/Developer you will earn a competitive package: Up to £85k salary Bonus Private Healthcare Pension 25 days holiday Apply now to find out more about this More ❯

Job Title: KDB+/Q Software Engineer Client: Elite High Frequency Trading Firm Salary: £70,000 - £225,000 Base (+ Bonus) Location: London (Hybrid) Experience Level: Junior, Mid and Senior Level Positions. My client is looking for a KDB+/Q Software Engineer to join their rapidly expanding development team, leveraging KDB+/Q to streamline … a commitment to the highest tech standards in the industry, our client prides itself on maintaining cutting-edge technology and a progressive work environment. As a KDB+/Q Software Engineer, you will play a pivotal role in the firm's operations, working on the greenfield development of data intensive applications. This position offers a unique opportunity to … to extract and manipulate data for strategy testing and signal generation. Key Requirements: Degree in Computer Science or STEM based subjects. Strong programming skills as a KDB+/Q Software Engineer. 1+ years of experience in a relevant role such as Software Engineer or Quant Developer Proficiency in modern software development practices, including version control and More ❯