1 to 25 of 270 Part-Time Software Engineer Jobs in London

Staff Software Engineer – THE AI Scale-Up of 2025 | Future Unicorn Up to £170,000 plus excellent stock options Remote First – London Office for those who want it 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 More ❯

BRAND NEW PERMANENT JOB OPPORTUNITY AVAILABLE WITHIN A LEADING SOFTWARE COMPANY FOR A SOFTWARE ENGINEER WITH ENHANCED DV CLEARANCE Permanent job opportunity for a Software Engineer Leading National Security SME working with Software and Data products Flexible salary DOE + Clearance bonus + Company … accessible location To apply please call 07704 152 640/0203 854 0120 or email dominic.barbet@searchability.com WHO WE ARE? We are recruiting a Software Engineer to work with a leading National Security SME in London. We support Central Government, Defence and Law Enforcement customers across the UK … with Software, Digital and Data products and tools to help keep the UK safe. Due to the nature of the work and the customers, you must hold enhanced DV Security Clearance. WHAT WILL THE SOFTWARE ENGINEER BE DOING? As a Software Engineer, you will be More ❯

Senior Software Engineer £70,000-£85,000 + discretionary bonus + EMI options scheme + Private Medical & Dental London (Hybrid working) PHP, Laravel, Tailwind, Inertia, Vue, AWS Senior Software Engineer position available for an expanding social sharing platform. This exciting position will see you working for … Inertia, Livewire, and Tailwind CSS. Their infrastructure leverages AWS, Aurora RDS, Redis, DynamoDB, and Soketi, managed through Laravel Forge, Envoyer, and Horizon. This Senior Software Engineer position will see you playing a pivotal role in developing new features, maintaining the high-traffic platform, and continually enhancing user experience. … You’ll collaborate closely with the product team, influence architectural decisions, and contribute to the agile development processes. To be considered for this Senior Software Engineer position you must: Be an experienced PHP Developer. Know Laravel inside out. Have an in-depth knowledge of React/Vue and More ❯

Job title (Senior) Software Engineer The role We are seeking a curious, creative and motivated individual who rises to the challenges of continuing to build an innovation-driven start-up. As we progress towards Series A funding, this is a unique opportunity to help define the future of … surgery and play a significant role in shaping the company’s product. This role is available at Software Engineer and Senior Software Engineer level, depending on experience. As our (Senior) Software Engineer, you will contribute to ongoing improvements and upgrades to our surgical hyperspectral … suggest and develop new product features and support them through to release into a medically regulated environment; hold responsibility in designing, developing and maintaining software components in C++ and Python; collaborate with other software engineers and imaging scientists as well as regulatory and clinical experts to ensure our More ❯

Senior Software Engineer. One of the UK’s leading and award-winning Wealth Managers seeks to hire an experienced Software engineers to lead agile based projects. The Senior Software Engineer will lead a team of software developers who deliver applications, integration, data and reporting solutions … across the business. The team is expanding, and the Senior Software Engineer will drive development/engineering strategy and client delivery. The Senior Software Engineer will: Influence and implement new ideas across software development teams Help to implement Agile practices Influence software development strategy … responsibility for recruitment, training and develop technical skills of new developers joining the team Report writing and reviewing statistics for senior management The Senior Software Engineer will have experience with: Have proven experience of leading projects Have extensive software development background Proven experience within a financial or More ❯

Software Engineer/Developer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Software Engineer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure and a range of technology? You could be joining a hugely … successful and growing commodities trading firm that specialise in trading whiskey. As a Software Engineer you'll collaborate with the Lead Engineer on the whiskey trading platform as the company looks to scale the platform and introduce new features. There's an emphasis on code quality; designing … previous exposure to any of these would be beneficial You're collaborative with good communication skills What's in it for you: As a Software Engineer/Developer you will earn: Salary to £85k Bonus Hybrid working (x3 days in London per week) Learning and career development opportunities More ❯

Our energy client is seeking a software engineer to join their team in Mayfair, London. We are looking for a Senior Backend Software Engineer with strong data engineering skills to join a small, agile team developing software solutions for our energy supply and trading functions. … Hybrid working is in play, with 3 days in the office and 2 days at home. Software Engineer- About the role: My client’s energy business is growing rapidly with a strong focus on using advanced data systems and analytics to deliver exceptional service. We are looking for … but a willingness to become an expert in this field is essential. Our success is based on understanding the subject matter from first principles. Software Engineer - Key Responsibilities: Architect, design, develop and maintain backend systems for analytics-driven applications, user tools, and automation workflows. Build and manage APIs More ❯

Software Engineer/Developer (C# TypeScript) London/WFH to £85k Would like to progress your career as a Software Engineer, working on a modern, web based, tech stack with continual learning and development opportunities as part of a diverse team? You could be progressing your … people, you'll be supported with training and can enjoy flexible working alongside a host of perks and benefits including flexible working. As a Software Engineer you'll collaborate to design and develop new features and enhancements to the company's flagship web based trading product. You'll … AWS) You have strong analysis and problem solving skills You're collaborative with great communication skills What's in it for you: As a Software Engineer/Developer (C# TypeScript) you will earn a competitive package including: Salary to £85k + bonus Pension, Private Health Care, Life Assurance More ❯

Working for a consumer scale-up with tens of millions of customers and processing over $1bn in transactions annually, the Lead Software Engineer will lead the technical direction of the backend and manage a team of talented Mid and Senior Backend Engineers. The company is continuing to scale … hybrid working model. Whilst fully remote is difficult, they can be flexible, as long as you can come in once a month The Lead Software Engineer will be responsible for: Owning the design and development of robust, scalable backend services Spearheading the technical direction of the backend Managing … a team of engineers Contributing to overarching technology strategy Transitioning some legacy code to more modern microservices The Lead Software Engineer will have: Experience in line management and technical leadership of backend Hands on coding experience with PHP and Go/Golang (other languages are a bonus) Strong More ❯

Software Engineer – Up to £70,000 plus shares - London Hybrid working 2 days a week in office- JavaScript – React/Node.js In Product is partnered with a Scale-up business who have after a period of stability and reaching profitability and experiencing a period of significant growth. This … to make life-changing behavioral changes. This business has a research-focused culture, with users at the core of their decision-making. As a Software Engineer, you will join a small team of Software Engineers and Leaders who are highly talented individuals, but also work cross-functionally … Product Designer. This team works iteratively, building at pace to create impactful and clean software. We are looking for an ambitious and self-driven Software Engineer with some experience working in a commercial environment. 🔊You will need to demonstrate your ability to self-start, take the initiative to More ❯

Software Engineer (C#/SQL/TDD/Code Refactoring/Python/Trading) 6 month contract initially £500 - £600 per day (outside IR35) Hybrid (London, The City) About the Role Albany Growth are looking for an experienced Software Engineer to join a growing technology team. … candidate will be responsible for rearchitecting and refactoring a key database in the company’s trading system. This will enable further modernisation of the software stack in collaboration with other engineers in the software development team. This is an opportunity to make a significant impact on business-critical … software and to collaborate with and learn from other experts. Ideally you’ll have a passion for refactoring to improve code quality, and for automated testing at all levels: unit, integration and acceptance. Essential experience 10+ years commercial experience as a software engineer Significant experience in C# More ❯

Software Engineer We are seeking a Software Engineer to join a Series A scale up valued at over $30 million, developing the next generation of image and video compression technology using an AI-first approach. Having dedicated significant research to AI/Software-led compression … Reasearch and Developement team and you will focus on designing, developing and maintain applications that leverage companies AI-based compression technology. We are seeking Software Engineer with: Coding experience with C++ (min 2 years) and understanding of low level programming Exposure to ML or AI ecosystems Experience with … Python, ideally using Pytorch would be beneficial but not essential Software Engineer Salary: Up to £80,000 plus lucrative stock options, a Private Health package, and more. Location: London, UK (flexible remote More ❯

Software Engineer | C++ | HFT | London Job Title: Software Engineer – C++ (HFT) Location: London (UK) Overview: One of Europe’s leading trading firms is looking to hire a C++ software engineer in their London office. This role would be desk-aligned with a high frequency … teams in Big Tech What’s on offer: Market-leading compensation Flexible hybrid working Leading benefits package (pension, healthcare, etc.) If you are a software engineer using C++, with previous experience in quant finance/high-performing teams in Big Tech, please apply. More ❯

Principal Software Engineer/Lead Software Engineer/C++/Rust A well-funded technology start-up operating at the forefront of AI has secured significant multimillion-pound investment. The company is developing a truly unique software platform that transforms how organizations interact with autonomous … systems and the data they generate—bringing disparate technologies together and making them more user-friendly. You will join as a Principal Software Engineer - C++/Rust , the critical hire for this specific team. This position offers full ownership and autonomy from day one, and you will play … in size over the coming months, it's an exciting time to join the business during a period of rapid growth. As the Principal Software Engineer, you’ll have the opportunity to build a team around you and make key strategic decisions shaping the company’s future. The More ❯

Senior Software Engineer | Distributed Systems | Sustainable Cloud Native Platform 💸Up to £100,000 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 to … 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 … art, Greenfield code which can focus on being the worlds most accountable and sustainable cloud provider🌳 What they're looking for in a Senior Software Engineer: Tech agnostic but preferable experience working with Golang, Rust or C/C++. In-depth knowledge of distributed systems, building solutions at More ❯

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 to … 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 … art, Greenfield code which can focus on being the worlds most accountable and sustainable cloud provider🌳 What they're looking for in a Lead Software Engineer: Tech agnostic but preferable experience working with Golang, Rust, Java and/or C/C++. In-depth knowledge of distributed systems More ❯

Senior Software Engineer – AI Voice Technology 📍 Location: Hybrid - 1 day in office with 6 months fully remote from anywhere in the world 💰 Salary: Upto £100k Senior Software Engineer (Python & Cloud Infrastructure) – We are hiring a Senior Software Engineer to join a pioneering AI company … Kubernetes with some opportunity to learn or use Golang contributing to a platform that transforms human-machine interactions. This role offers a balance of software engineering, infrastructure scaling, and machine learning deployment . What we offer our Senior Software Engineer: Equity options – Participate in the company’s More ❯

Software Engineer | C#, SQL, Legacy Refactoring | Systematic Hedge Fund Rate: £650-750 per day IR35: Outside Duration: 12 months+ Location: 3 days in the office per week in Moorgate/Liverpool Street We’re working with a high-performing, systematic hedge fund based in the City to help … them hire a Senior Software Engineer to take ownership of a core Portfolio Management platform during a major platform migration and refactor initiative. This is a unique opportunity to own and evolve a mission-critical application in a lean, engineering-led environment where quality matters and your input … CI/CD, monitoring, observability (nice to have) Experience in XP or lean development (nice to have) The Role: You’ll be the lead engineer on their Portfolio Management application , refactoring the existing codebase, helping move it to a new server environment, and improving how logic sits between the More ❯

Software Engineer (React) Salary: £40,000-£50,000 Location: 2-3 days p/week in London Software Engineer (React) - would you like the opportunity to work for an organisation currently on a mission to make home buying and selling simpler? You’ll be joining their … in-house product and platform team, where you’ll work alongside and learn from highly experienced software developers and product managers. As a Software Engineer (React), you will get a lot of responsibility and work in an award-winning team, getting the opportunity to work on a … year commercial experience building web-based applications. Experience in Frontend development (HTML, CSS, JavaScript, React). Experience working with Python If you’re a Software Engineer (React) who enjoys working on a variety of projects and tasks, please apply. More ❯

Senior Software Engineer (React, Node.js, AWS) Salary: £90,000 - £110,000. Location: Hybrid in London. Senior Software Engineer (React, Node.js, AWS) - would you like the opportunity to work for a market leading organisation, currently looking to revolutionise the data space? You will be joining a technology … team who have a passion for innovation, collaboration as well as embracing new ideas, technologies and approaches. As a Senior Software Engineer, you will be working closely with Product and design, taking full responsibility and ownership from conception to post-deployment. The company has grown significantly in the … Ideally looking for Backend focused Engineers who are comfortable across the stack so must be happy working this way. If you're a Senior Software Engineer with strong experience working in JS/TS, please apply. More ❯

Contract .NET Developer/Contract .NET Software Engineer .NET Core, C# Developer, Windows Azure (CosmosDB, Event Grid, Functions, App Insights), Backend Code, SQL Server, NoSQL, CosmosDB, Event Driven Architecture, Messaging Systems We are looking for a Contract .NET Developer (Contract Software Engineer C#.NET) to join a … Bus/App Insights/Event Grid/Functions etc Git, TDD, Agile ways of working If you are a Contract .NET Developer (Contract Software Engineer) and available either immediately or within short notice, please apply for the position today. Contract .NET Developer/Contract .NET Software Engineer More ❯

teams across FTSE companies, private businesses and major government departments in order to transform their organisations. We are currently looking for a Senior Java Software Engineer to work with a broad range of blue-chip companies and public sector organisations. As a Senior Java Engineer , you will … on projects that employ cutting edge technologies and deliver high profile solutions that make a genuine difference to everyday life. A Successful Senior Java Software Engineer Will Have: Strong object-oriented programming principles in Java. Extensive experience in leveraging Java 8 features. Domain/Sector/Technologies/… services using JAX-RS. Experience in hosting and orchestration using Docker, Kubernetes and AWS Autoscaling Groups. Experience in a position of leadership. Senior Java Software Engineer Key Details: Up to £75k Salary. 10-20% discretionary bonus. Hybrid Working. Travel allowance. Requires eligibility for SC Clearance. If this role More ❯

Software Engineer Multiple levels of seniority Permanent role Based in London Open on salary depending on experience Are you an experienced Software Engineer? Do you want to work with an industry-leading company? If your answer to these is yes, then this could be the role … for you! As the Software Engineer, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable you to grow within the … will be required to obtain UK security clearance in this role. You will be involved in some of the following: Planning, conducting, and coordinating software development activities Design and development of tests to debug software Correction of program errors Preparation of operating instructions Documentation of program development Analysis More ❯

Software engineer – AI/Machine Learning – London - £100,000 per annum + equity Software engineer is required to join an incredibly exciting AI scaleup which empowers creatives to match with top tier companies. The company have already become profitable in their first year and are about … to go through a significant round of investment to really scale their product offering. They are looking for a software engineer with experience within the AI/Machine learning to come on board in this exciting phase as they look to take their product to market after a … Typescript on the frontend and Python/Java on the backend. For this role they are keeping an open mind in regards to someones software engineering tech stack as long as you are happy to work within their stack but they need someone who has commercial experience working with More ❯

Senior Software Engineer, London, £85,000 A Senior Software Engineer with strong experience of Ruby on Rails is needed to join an e-Commerce SaaS Scale-up in London. Working within a talented team of engineers and reporting into an inspiring Technology Leader you, this is … a senior developer role where you will lead by example. The new RoR Software Engineer will take the lead on multiple projects, driving standards within a product-focused engineering environment. Working within a fast-paced environment focused on delivering and shipping high quality features. What You’ll Do … skills with a drive to progress to Team Leader level. Weekly team meals, quarterly events, employee perks. If you're interested in this Senior Software Engineering opportunity and have a strong Ruby on Rails background, please apply with a copy of your CV ASAP More ❯