Part-Time Software Engineer Jobs in London

1 to 25 of 31 Part-Time Software Engineer Jobs in London

Lead Software Engineer

London, UK
Hybrid / WFH Options
Formula Recruitment
Lead Software Engineer Up to 110,000 + Bonus Central London - Hybrid Global Luxury Brand Node.JS, Typescript, AWS Were supporting a global luxury brand with a mission to push boundaries in digital commerce innovation. Theyre investing heavily in their tech ecosystem and are now looking for a Lead Software Engineer to take a key role in … and CI/CD practices. Youll 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 youll 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 ❯
Employment Type: Part-time
Posted:

Lead Software Engineer

City of London, Greater London, UK
Hybrid / WFH Options
Formula Recruitment
Lead Software Engineer Up to 110,000 + Bonus Central London - Hybrid Global Luxury Brand Node.JS, Typescript, AWS Were supporting a global luxury brand with a mission to push boundaries in digital commerce innovation. Theyre investing heavily in their tech ecosystem and are now looking for a Lead Software Engineer to take a key role in … and CI/CD practices. Youll 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 youll 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 ❯
Employment Type: Part-time
Posted:

Senior Software Engineer

London, UK
Tech Talent Partners
Senior Full-Stack Software Engineer -London (3 days a week) -up to 125K + options An early-stage B2B SaaS company seeks a Lead Software Engineer to join their London based team. The role requires significant experience across Full-stack Engineering in addition to experience leading software engineers. The company is an AI-first B2B … worked with multiple languages and has an open mind to finding the best technologies to solve their customers problems. About you : Were looking for a hands-on Full-Stack Software Engineer who has experience leading teams of engineers within early-stage and scale-up technology companies, ideally in the B2B or SaaS categories. You will have experience in … CD pipelines, cloud) The company requires you to work in their office 3-days a week and cannot offer sponsorship. This is an equal opportunity employer. Senior Full-Stack Software Engineer More ❯
Employment Type: Part-time
Posted:

Senior Software Engineer

City of London, Greater London, UK
Tech Talent Partners
Senior Full-Stack Software Engineer -London (3 days a week) -up to 125K + options An early-stage B2B SaaS company seeks a Lead Software Engineer to join their London based team. The role requires significant experience across Full-stack Engineering in addition to experience leading software engineers. The company is an AI-first B2B … worked with multiple languages and has an open mind to finding the best technologies to solve their customers problems. About you : Were looking for a hands-on Full-Stack Software Engineer who has experience leading teams of engineers within early-stage and scale-up technology companies, ideally in the B2B or SaaS categories. You will have experience in … CD pipelines, cloud) The company requires you to work in their office 3-days a week and cannot offer sponsorship. This is an equal opportunity employer. Senior Full-Stack Software Engineer More ❯
Employment Type: Part-time
Posted:

Software Engineer

London, UK
Hybrid / WFH Options
Harrington Starr
Software Engineer London, UK 85,000 basic plus bonus Were looking for a Software Engineer to join a team that specialise in optimising large-scale, high-performance systems used by demanding clients worldwide. Youll work across the full delivery lifecycle, from profiling and tuning code, to rethinking architectures ensuring software runs with maximum speed, minimal … load testing frameworks Mentoring engineers on writing efficient, scalable, and maintainable code Contributing to architectural decisions that directly impact performance and reliability What were looking for Solid experience in software engineering with strong experience in Python, Java, or C# Proven track record of performance tuning in large-scale, distributed systems Expertise in profiling tools, memory management, and debugging complex … market leading bonus structures Tech Stack: Python, Java, C#, Postgres, Kubernetes, Docker, AWS, Azure, k6, JMeter, Gatling If youre passionate about pushing the boundaries of performance engineering and building software that scales effortlessly, wed love to hear from you. More ❯
Employment Type: Part-time
Posted:

Software Engineer

London, UK
RJC Group
Software Engineer- Python- Data Science and Machine Learning Team The RJC Group is looking for an experienced Software Engineer to join a growing Data Science & Machine Learning team within a global energy and commodities company. This is a hands-on role building the tools, pipelines, and infrastructure that power real-world ML applications across commercial and … deliver scalable ML solutions Build and maintain clean, reliable data pipelines and internal tools Collaborate with technical and non-technical stakeholders What You Bring 35+ years of experience in software engineering (Python) Experience with fastAPI, cloud platforms (AWS, Azure, or GCP), Docker. Bonus: experience with ML workflows, Spark, Airflow, or trading systems Why Join Up to 140K Up to More ❯
Employment Type: Part-time
Posted:

Software Engineer

City of London, Greater London, UK
RJC Group
Software Engineer- Python- Data Science and Machine Learning Team The RJC Group is looking for an experienced Software Engineer to join a growing Data Science & Machine Learning team within a global energy and commodities company. This is a hands-on role building the tools, pipelines, and infrastructure that power real-world ML applications across commercial and … deliver scalable ML solutions Build and maintain clean, reliable data pipelines and internal tools Collaborate with technical and non-technical stakeholders What You Bring 35+ years of experience in software engineering (Python) Experience with fastAPI, cloud platforms (AWS, Azure, or GCP), Docker. Bonus: experience with ML workflows, Spark, Airflow, or trading systems Why Join Up to 140K Up to More ❯
Employment Type: Part-time
Posted:

Senior Software Engineer

London, UK
Nando's UK & IRE
Senior Software Engineer (Contract) Team: Digital Workplace Experience Contract: 612 months IR35 Status: OUTSIDE At Nandos , were not just about PERi-PERi chicken were about people, purpose, and passion. We believe that technology should bring warmth, connection, and joy to every Nandoca (thats what we call everyone who works here). Our Digital Workplace Experience Team is on … a mission to create beautifully simple, empowering digital tools that help our teams across restaurants and Central Support thrive every day. Were looking for a Senior Software Engineer (React Native + Node.js) who shares our values and wants to make meaningful impact creating tools that support real people, not just users. What youll be doing As part of More ❯
Employment Type: Part-time
Posted:

Senior Software Engineer

City of London, Greater London, UK
Nando's UK & IRE
Senior Software Engineer (Contract) Team: Digital Workplace Experience Contract: 612 months IR35 Status: OUTSIDE At Nandos , were not just about PERi-PERi chicken were about people, purpose, and passion. We believe that technology should bring warmth, connection, and joy to every Nandoca (thats what we call everyone who works here). Our Digital Workplace Experience Team is on … a mission to create beautifully simple, empowering digital tools that help our teams across restaurants and Central Support thrive every day. Were looking for a Senior Software Engineer (React Native + Node.js) who shares our values and wants to make meaningful impact creating tools that support real people, not just users. What youll be doing As part of More ❯
Employment Type: Part-time
Posted:

Senior Software Engineer (AI HealthTech) - Up to 100k + Bonus + Equity - FULLY REMOTE

West London, UK
Hybrid / WFH Options
Hunter Bond
Job Title: Senior Software Engineer (AI HealthTech) Client: AI HealthTech Scale-Up Backed by Top-Tier Investors, Led by World-Class Engineers Salary: Up to 100k + Bonus + Equity Location: Remote (UK-based) with an optional Holborn office Sells: Work on cutting-edge AI systems that power healthcare innovation at scale. Full remote flexibility across the UK … Python/FastAPI/Cloud), and a culture that rewards curiosity, autonomy, and clean engineering. An AI HealthTech company is expanding its high-calibre engineering team and looking for Software Engineers who thrive on building elegant, scalable systems from the ground up. Youll be joining a small, world-class team working on distributed backend platforms, data-driven AI tools … and core infrastructure supporting advanced medical technologies. This is a true software engineering role where you'll be designing, building, and scaling complex systems that solve real problems in healthcare. Role Design and build production-grade backend systems using Python and FastAPI Develop distributed, high-performance services and APIs for AI-driven platforms Contribute to architecture decisions, scalability planning More ❯
Employment Type: Part-time
Posted:

Senior Software Engineer (AI HealthTech) - Up to 100k + Bonus + Equity - FULLY REMOTE

Central London, UK
Hybrid / WFH Options
Hunter Bond
Job Title: Senior Software Engineer (AI HealthTech) Client: AI HealthTech Scale-Up Backed by Top-Tier Investors, Led by World-Class Engineers Salary: Up to 100k + Bonus + Equity Location: Remote (UK-based) with an optional Holborn office Sells: Work on cutting-edge AI systems that power healthcare innovation at scale. Full remote flexibility across the UK … Python/FastAPI/Cloud), and a culture that rewards curiosity, autonomy, and clean engineering. An AI HealthTech company is expanding its high-calibre engineering team and looking for Software Engineers who thrive on building elegant, scalable systems from the ground up. Youll be joining a small, world-class team working on distributed backend platforms, data-driven AI tools … and core infrastructure supporting advanced medical technologies. This is a true software engineering role where you'll be designing, building, and scaling complex systems that solve real problems in healthcare. Role Design and build production-grade backend systems using Python and FastAPI Develop distributed, high-performance services and APIs for AI-driven platforms Contribute to architecture decisions, scalability planning More ❯
Employment Type: Part-time
Posted:

Senior Software Engineer

City of London, Greater London, UK
dnevo Partners
Software Engineer Location: London Experience: 57 Years Industry: Market Making/Proprietary Trading/Capital Markets **Please note applicants coming from a buy side/trading/capital markets background will be given a strong preference** Looking for software engineers to join a small but highly skilled, and collaborative, bringing together expert traders and software engineers. … or Python (C++ a plus) Familiarity with databases (e.g., SQL Server, Postgres) Familiarity with developing, testing, or deploying with cloud providers (e.g., AWS, GCP, Azure) Experience using version control software (e.g., Git) Curiosity and a desire to solve challenging problems Strong programming ability A collaborative mindset and eagerness to give and receive feedback Excellent written and verbal communication skills More ❯
Employment Type: Part-time
Posted:

Senior Software Engineer | Typescript | Fully Remote

West London, UK
Hybrid / WFH Options
Wilson Brown
Senior Software Engineer Web | Fully Remote (UK) Founding Engineer | TypeScript | Next.js | React | Tailwind | Shadcn | GCP | Prisma An innovative, mission-driven LegalTech SaaS start-up is looking for a Senior Product Engineer (Web & Frontend) with deep experience in Typescript, React and Product development. Role Information: Salary : Up to 100,000 (DOE) + Equity Location : Fully remote (UK … craft exceptional UIs, architect APIs, and work across infrastructure ideal for someone who thrives in startup environments, enjoys ownership, and wants to build in the agentic age. Senior Product Engineer - Highlights: Build and maintain full-stack features using TypeScript, Next.js, and React Design APIs and backend services with Prisma, Postgres, Redis, and GCP Implement responsive, accessible, and elegant UIs More ❯
Employment Type: Part-time
Posted:

Senior Software Engineer | Typescript | Fully Remote

Central London, UK
Hybrid / WFH Options
Wilson Brown
Senior Software Engineer Web | Fully Remote (UK) Founding Engineer | TypeScript | Next.js | React | Tailwind | Shadcn | GCP | Prisma An innovative, mission-driven LegalTech SaaS start-up is looking for a Senior Product Engineer (Web & Frontend) with deep experience in Typescript, React and Product development. Role Information: Salary : Up to 100,000 (DOE) + Equity Location : Fully remote (UK … craft exceptional UIs, architect APIs, and work across infrastructure ideal for someone who thrives in startup environments, enjoys ownership, and wants to build in the agentic age. Senior Product Engineer - Highlights: Build and maintain full-stack features using TypeScript, Next.js, and React Design APIs and backend services with Prisma, Postgres, Redis, and GCP Implement responsive, accessible, and elegant UIs More ❯
Employment Type: Part-time
Posted:

Software Engineer

City of London, Greater London, UK
Burns Sheehan
Senior Software/Platform Engineer (LLM/AI Interest) | Brand new AI Platform 120,000 - 130,000 London - 4 days a week in office (Paddington) Python, GCP, Kubernetes, Terraform, CI/CD, AI/LLM exposure/interest Here at Burns Sheehan, were working with a leading UK tech business in the payments and financial services space - processing … continuing to invest heavily in their engineering function and are now expanding a dedicated AI team thats quickly becoming a key part of their technology strategy. Theyre hiring experienced Software/Platform Engineers to help build and scale their internal AI Platform - the infrastructure, tooling, and developer experience layer that enables teams across the business to develop and deploy … like LangChain , LangGraph , CrewAI , or similar tools. Partnering closely with engineering, security, and product teams to deliver safe, production-ready AI systems. What Theyre Looking For: Strong background in Software or Platform Engineering - ideally with Python, Java or Go. Experience with Kubernetes, Terraform, and cloud environments (GCP preferred). Understanding of microservices, distributed systems, and cloud-native architecture. Interest More ❯
Employment Type: Part-time
Posted:

Mission Driven Software Engineer

London, UK
develop
Purpose driven Python, React, Typescript Software Engineer Solving Humanitys Most Urgent Challenges London based A pioneering early-stage investment firm is backing entrepreneurs solving humanitys most urgent challenges from synthetic biology and clean energy to AI safety, healthcare, and space. The team believes were entering a new economic renaissance where technology and science can bend the arc of … Create and experiment fast: Work in two-week sprints across projects ranging from investor databases to AI-driven research scrapers and consumer-facing products. Operate like a founder: Each engineer owns their own product area, working with high autonomy and direct impact on the firms success. Collaborate with visionary people: Partner with engineers and product leaders who have built … Next.js with a deep embrace of AI tooling and automation. Curiosity about new technologies is essential. Ideal Profile Startup DNA: Experience in fast-moving environments, ideally as a founding engineer or early stage employee. Technical excellence: A hands-on engineer with strong fundamentals whether self-taught or academically trained (Computer Science or related field). Big Tech or More ❯
Employment Type: Part-time
Posted:

Mission Driven Software Engineer

City of London, Greater London, UK
develop
Purpose driven Python, React, Typescript Software Engineer Solving Humanitys Most Urgent Challenges London based A pioneering early-stage investment firm is backing entrepreneurs solving humanitys most urgent challenges from synthetic biology and clean energy to AI safety, healthcare, and space. The team believes were entering a new economic renaissance where technology and science can bend the arc of … Create and experiment fast: Work in two-week sprints across projects ranging from investor databases to AI-driven research scrapers and consumer-facing products. Operate like a founder: Each engineer owns their own product area, working with high autonomy and direct impact on the firms success. Collaborate with visionary people: Partner with engineers and product leaders who have built … Next.js with a deep embrace of AI tooling and automation. Curiosity about new technologies is essential. Ideal Profile Startup DNA: Experience in fast-moving environments, ideally as a founding engineer or early stage employee. Technical excellence: A hands-on engineer with strong fundamentals whether self-taught or academically trained (Computer Science or related field). Big Tech or More ❯
Employment Type: Part-time
Posted:

Remote Senior Java Software Engineer - Crypto Fintech

West London, UK
Hybrid / WFH Options
McGregor Boyall
of the world's most dynamic markets. Trusted by regulators and institutions worldwide, their systems monitor over a trillion events every single day. They are now seeking a Senior Software Engineer to join the Algos Team. In this role, you'll design and develop advanced algorithms that detect and prevent market abuse, fraud, and compliance breaches - directly shaping … design of scalable, low-latency systems Collaborate with quants, data scientists, and compliance experts Enhance and maintain a mission-critical global codebase What they're looking for 5+ years' software engineering experience (3+ in financial markets/algos) Strong coding skills in Java, Kotlin, C#, or C++ (Python a plus) Hands-on experience with real-time data processing & distributed … systems Strong understanding of software engineering and system architecture A proactive problem-solver with excellent collaboration skills Why Join? Fully remote role with global collaboration Work at the intersection of finance and crypto innovation Be part of a mission-driven company protecting millions of investors Ready to help build safer, fairer financial and crypto markets? Apply now. Desired Skills More ❯
Employment Type: Part-time
Posted:

Remote Senior Java Software Engineer - Crypto Fintech

Central London, UK
Hybrid / WFH Options
McGregor Boyall
of the world's most dynamic markets. Trusted by regulators and institutions worldwide, their systems monitor over a trillion events every single day. They are now seeking a Senior Software Engineer to join the Algos Team. In this role, you'll design and develop advanced algorithms that detect and prevent market abuse, fraud, and compliance breaches - directly shaping … design of scalable, low-latency systems Collaborate with quants, data scientists, and compliance experts Enhance and maintain a mission-critical global codebase What they're looking for 5+ years' software engineering experience (3+ in financial markets/algos) Strong coding skills in Java, Kotlin, C#, or C++ (Python a plus) Hands-on experience with real-time data processing & distributed … systems Strong understanding of software engineering and system architecture A proactive problem-solver with excellent collaboration skills Why Join? Fully remote role with global collaboration Work at the intersection of finance and crypto innovation Be part of a mission-driven company protecting millions of investors Ready to help build safer, fairer financial and crypto markets? Apply now. Desired Skills More ❯
Employment Type: Part-time
Posted:

Graduate / Junior Software Engineer Mission-Led Start-Up 35k50k + Benefits

London, UK
Hybrid / WFH Options
Kioni Talent
Opportunity Summary Role | Graduate/Junior Software Engineer (Full-Stack) Experience | STEM degree (or equivalent) + personal projects/demonstrable passion for tech Company | Mission-Led Start-Up Stage | Scaling engineering team Location | London (Hybrid) Offer | 35,000 50,000 + benefits The Opportunity Kioni Talent is supporting a mission-led start-up in London as they expand … their engineering team. This is an exciting role for a passionate technologist who wants to work across the stack, learn from experienced engineers, and contribute to building meaningful software from day one. Youll be working with modern web technologies React, TypeScript, Next.js, Tailwind CSS with the backend hosted on AWS. This is a hands-on role where youll get More ❯
Employment Type: Part-time
Posted:

Graduate / Junior Software Engineer Mission-Led Start-Up 35k50k + Benefits

City of London, Greater London, UK
Hybrid / WFH Options
Kioni Talent
Opportunity Summary Role | Graduate/Junior Software Engineer (Full-Stack) Experience | STEM degree (or equivalent) + personal projects/demonstrable passion for tech Company | Mission-Led Start-Up Stage | Scaling engineering team Location | London (Hybrid) Offer | 35,000 50,000 + benefits The Opportunity Kioni Talent is supporting a mission-led start-up in London as they expand … their engineering team. This is an exciting role for a passionate technologist who wants to work across the stack, learn from experienced engineers, and contribute to building meaningful software from day one. Youll be working with modern web technologies React, TypeScript, Next.js, Tailwind CSS with the backend hosted on AWS. This is a hands-on role where youll get More ❯
Employment Type: Part-time
Posted:

Java Software Engineer

London, UK
BGC Group
or just beginning your career, working at BGC partners provides opportunities to develop skills, make an impact and grow at an accelerated pace. Role Summary Senior Middle Office Backend Software Engineer GBX is BGCs flagship platform for electronic trading solutions in the Credit and Rates markets. Used by thousands of brokers and traders daily, GBX is a strategic … growth targets. Areas of focus include system reliability, testability, recoverability, automation, throughput and latency. Our engineers are analytical thinkers and have a strong understanding of computer science fundamentals and software engineering. You will be exposed to multiple financial markets and market structures, have the opportunity work on scaling a real-time system with a global footprint, applying modern software More ❯
Employment Type: Part-time
Posted:

Golang Software Engineer - High Frequency Trading

London, UK
Capital Markets Recruitment
Our client, a leading High Frequency Trading Firm, is seeking a Senior Software Engineer to join their Core Systems team, responsible for building and maintaining the platforms that power research, trading, and infrastructure operations. This is a unique opportunity to work with world-class technologists in a fast-paced, data-driven environment where engineering excellence directly drives business More ❯
Employment Type: Part-time
Posted:

Lead Software Engineer

London, UK
Acxiom UK
We are seeking a Principal Engineer/Engineering Manager to lead one of the core engineering teams within Planning Agent , our AI-powered advertising planning platform used daily by IPG agency teams. You will help shape and grow a product with AI at its core, using agents to power an AI assistant advertising planners throughout their workflow. Youll lead … mentoring, and driving delivery. In all cases, youll conduct code reviews, contribute to high-impact features, and foster a high-performance engineering culture. This position reports to the VP, Software Engineering, Planning. It will be primarily remote, though you are also welcome to work in our London office. Key Responsibilities: Shape the architecture and engineering design of the product … Proven experience as a senior technical leader in an Agile/Scrum environment Strong knowledge of Python and microservice architectures Experience building web applications, preferably including React Familiar with software development methodologies, scaled system design, and best practices Knowledge of AWS and cloud-native architectures; familiarity with LangGraph a plus Strong communication skills, able to explain technical problems clearly More ❯
Employment Type: Part-time
Posted:

Lead Software Engineer

City of London, Greater London, UK
Acxiom UK
We are seeking a Principal Engineer/Engineering Manager to lead one of the core engineering teams within Planning Agent , our AI-powered advertising planning platform used daily by IPG agency teams. You will help shape and grow a product with AI at its core, using agents to power an AI assistant advertising planners throughout their workflow. Youll lead … mentoring, and driving delivery. In all cases, youll conduct code reviews, contribute to high-impact features, and foster a high-performance engineering culture. This position reports to the VP, Software Engineering, Planning. It will be primarily remote, though you are also welcome to work in our London office. Key Responsibilities: Shape the architecture and engineering design of the product … Proven experience as a senior technical leader in an Agile/Scrum environment Strong knowledge of Python and microservice architectures Experience building web applications, preferably including React Familiar with software development methodologies, scaled system design, and best practices Knowledge of AWS and cloud-native architectures; familiarity with LangGraph a plus Strong communication skills, able to explain technical problems clearly More ❯
Employment Type: Part-time
Posted:
Software Engineer
London
10th Percentile
£65,000
25th Percentile
£86,750
Median
£110,000
75th Percentile
£135,000
90th Percentile
£142,500