426 to 450 of 750 Software Engineering Jobs in the City of London

systems Collaborate closely with technical and non-technical teams to identify high-impact AI opportunities Ensure model scalability, performance, and reliability in live production environments Qualifications: 3+ years of software engineering experience, with recent experience developing AI/ML tools and applications Experience with cloud and on-premises environments; familiarity with high-performance computing is a plus Financial More ❯

systems Collaborate closely with technical and non-technical teams to identify high-impact AI opportunities Ensure model scalability, performance, and reliability in live production environments Qualifications: 3+ years of software engineering experience, with recent experience developing AI/ML tools and applications Experience with cloud and on-premises environments; familiarity with high-performance computing is a plus Financial 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 through to … 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 data 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 through to … 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 data More ❯

or similar trading development role in this successful Commodities Trading company. £750 - 800 per day Outside IR35 The Senior C# Developer will have significant prior experience as a Senior Software Engineer/Senior Developer working as C# Developer in a Commodities trading environment where they will have gained knowledge of the full trade life-cycle and feel comfortable speaking More ❯

changing problems What we’re looking for Strong skills across Figma, CSS, React, TypeScript, GraphQL Experience in startups – comfortable with fast-paced, high-ownership environments 2+ years as a Software Engineer The package £100k – £150k salary + meaningful equity Hybrid setup: 3 days per week in our Central London office Chance to join a world-class team shaping the 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 role in … shaping platform engineering strategy and guiding backend delivery across a complex digital estate. This is a highly influential position where you’ll combine technical leadership with hands-on expertise, helping set direction for cloud infrastructure, backend systems, and 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, you will have the following: Extensive Node.js backend development experience with deep understanding of CI/CD Proven expertise in AWS 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 role in … shaping platform engineering strategy and guiding backend delivery across a complex digital estate. This is a highly influential position where you’ll combine technical leadership with hands-on expertise, helping set direction for cloud infrastructure, backend systems, and 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, you will have the following: Extensive Node.js backend development experience with deep understanding of CI/CD Proven expertise in AWS More ❯

Software Engineer Location: London Experience: 2–7 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 ❯

Software Engineer Location: London Experience: 2–7 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 ❯

the full lifecycle of both ML models and core infrastructure - from development and deployment to monitoring and continuous improvement. Build and maintain robust CI/CD pipelines for both software and ML workflows. Ensure reliability, scalability, observability, and security of production systems and ML infrastructure. Automate deployment, orchestration, and environment management using modern DevOps tooling. Collaborate closely with software … MLOps, and infrastructure engineering. Document infrastructure, workflows, and operational procedures clearly and thoroughly. We’re Looking For: Proven experience in a senior-level DevOps, MLOps, or related infrastructure-focused engineering role. Strong proficiency in Python and familiarity with ML frameworks such as TensorFlow or PyTorch. Deep experience with cloud platforms (AWS, GCP, or Azure) and container orchestration tools (Docker … Kubernetes). Solid understanding of CI/CD systems (e.g., GitHub Actions, GitLab CI, ArgoCD) and infrastructure-as-code tools (e.g., Terraform, Helm). Familiarity with data engineering concepts such as ETL pipelines, data lakes, and large-scale batch/stream processing. Ability to design scalable, secure, and observable systems in fast-moving environments. Strong debugging and problem-solving More ❯

the full lifecycle of both ML models and core infrastructure - from development and deployment to monitoring and continuous improvement. Build and maintain robust CI/CD pipelines for both software and ML workflows. Ensure reliability, scalability, observability, and security of production systems and ML infrastructure. Automate deployment, orchestration, and environment management using modern DevOps tooling. Collaborate closely with software … MLOps, and infrastructure engineering. Document infrastructure, workflows, and operational procedures clearly and thoroughly. We’re Looking For: Proven experience in a senior-level DevOps, MLOps, or related infrastructure-focused engineering role. Strong proficiency in Python and familiarity with ML frameworks such as TensorFlow or PyTorch. Deep experience with cloud platforms (AWS, GCP, or Azure) and container orchestration tools (Docker … Kubernetes). Solid understanding of CI/CD systems (e.g., GitHub Actions, GitLab CI, ArgoCD) and infrastructure-as-code tools (e.g., Terraform, Helm). Familiarity with data engineering concepts such as ETL pipelines, data lakes, and large-scale batch/stream processing. Ability to design scalable, secure, and observable systems in fast-moving environments. Strong debugging and problem-solving More ❯

Senior Software Engineer | Hybrid | London | React | Node.js | Typescript | GCP | £90k + Share options La Fosse have partnered with a market leader in audio technology. This role is an opportunity to step into technical leadership and is a hands on engineering role focused more across the backend. What they’re Looking For: Experience in modern web application development, TypeScript … their Central London office. Process: They have 3 quick interview stages. If you’re interested in the position and feel you fit some of the requirements, apply now! Senior Software Engineer | Hybrid | London | React | Node.js | Typescript | GCP | £90k + Share options More ❯

live systems to ensure performance and reliability Participate in idea generation and contribute to ongoing R&D in systematic DeFi strategies Requirements Anyone with 2–3+ years of professional software engineering experience Strong proficiency in Rust (or another systems language with proven Rust competency through projects) Familiarity with DeFi protocols , smart contracts, or on-chain trading systems Ideally More ❯

live systems to ensure performance and reliability Participate in idea generation and contribute to ongoing R&D in systematic DeFi strategies Requirements Anyone with 2–3+ years of professional software engineering experience Strong proficiency in Rust (or another systems language with proven Rust competency through projects) Familiarity with DeFi protocols , smart contracts, or on-chain trading systems Ideally More ❯

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 … outstanding user experience to their customers. They believe in building fast and iterating, working closely with product and customers, to evolve their cutting-edge AI solutions. What is Staff Software Engineer for them? The Staff Software Engineer will have experience of leading the design and build complex solutions in product-driven companies with good knowledge of some or More ❯

Senior Software Engineer Key Technologies: C#, .NET, React, AWS, Docker, Kubernetes 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 their growing team! This role provides the perfect opportunity to launch your career … skills. Unrestricted right to work in the 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 and commercial use of React having a direct impact from the get-go. Apply below and if you have any questions, please contact More ❯

Senior Software Engineer Key Technologies: C#, .NET, React, AWS, Docker, Kubernetes 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 their growing team! This role provides the perfect opportunity to launch your career … skills. Unrestricted right to work in the 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 and commercial use of React having a direct impact from the get-go. Apply below and if you have any questions, please contact More ❯

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 business … against this mission. The team come from some of the UK’s most exciting technology scale-ups and are well placed to execute. The role requires significant Full-Stack Engineering experience, including the backend, frontend and platform. It’s responsible for leading other engineers while remaining fully hands-on as an engineer. It will not suit someone who has … with multiple languages and has an open mind to finding the best technologies to solve their customers’ problems. About you : We’re 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 advising More ❯

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 business … against this mission. The team come from some of the UK’s most exciting technology scale-ups and are well placed to execute. The role requires significant Full-Stack Engineering experience, including the backend, frontend and platform. It’s responsible for leading other engineers while remaining fully hands-on as an engineer. It will not suit someone who has … with multiple languages and has an open mind to finding the best technologies to solve their customers’ problems. About you : We’re 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 advising More ❯

Senior Software Engineer Hybrid - 4 days a week in Central London £100k + Bonus + Equity Fin-Tech/Payments We’re working with a well funded, high-growth fintech start-up that’s building the next generation of financial automation. They're building an Ai powered, fully automated financial operating system and payment platform. This is a chance … beyond. About the Company Fintech start-up disrupting a £15 trillion industry Backed by the founders of Slack Founded by serial founders with multiple exits under their belts Founding engineering team of industry experts Scaling fast with an ambitious roadmap (targeting US expansion next) Building tech that transforms financial operations for customers at scale What You’ll Be Doing … Contribute to product direction, technical decisions, and future stack evolution Collaborate directly with founders, product, and customers to solve real-world problems What We’re Looking For Strong backend engineering experience - C#, .Net Core, AWS Comfort-ability contributing to the front end, ideally using React Proven experience building 3rd-party integrations (GoCardless, Stripe, or similar) Very good understanding of More ❯

Senior Software Engineer Hybrid - 4 days a week in Central London £100k + Bonus + Equity Fin-Tech/Payments We’re working with a well funded, high-growth fintech start-up that’s building the next generation of financial automation. They're building an Ai powered, fully automated financial operating system and payment platform. This is a chance … beyond. About the Company Fintech start-up disrupting a £15 trillion industry Backed by the founders of Slack Founded by serial founders with multiple exits under their belts Founding engineering team of industry experts Scaling fast with an ambitious roadmap (targeting US expansion next) Building tech that transforms financial operations for customers at scale What You’ll Be Doing … Contribute to product direction, technical decisions, and future stack evolution Collaborate directly with founders, product, and customers to solve real-world problems What We’re Looking For Strong backend engineering experience - C#, .Net Core, AWS Comfort-ability contributing to the front end, ideally using React Proven experience building 3rd-party integrations (GoCardless, Stripe, or similar) Very good understanding of More ❯

Senior Software Developer London – Twice a week in the office £70,000-£90,000 C#/Python/Azure I’m currently working for a well-established tech consultancy business of over 70 years who are based in Central London and looking for a Senior Software Developer , paying up to £90,000 and requiring office working of twice More ❯

Senior Software Developer London – Twice a week in the office £70,000-£90,000 C#/Python/Azure I’m currently working for a well-established tech consultancy business of over 70 years who are based in Central London and looking for a Senior Software Developer , paying up to £90,000 and requiring office working of twice More ❯

Senior Software Engineer Overall Ambition At Nando’s, we’re building scalable, data-driven solutions that keep our restaurants safe, compliant, and thriving every day. This is more than just code – it’s about creating technology that directly supports the people running our restaurants and the communities we serve ❤️. The Safety & RMD Team We’re looking for a … Senior Software Engineer to join our Safety & Restaurant Master Database (RMD) team. We build two critical product lines: safety and compliance systems that help restaurant teams report incidents and manage compliance, and the Restaurant Master Database – the single source of truth for operational data that drives decision-making across Nando’s. Our team is collaborative, supportive, and passionate about … by ownership – you care about what happens after code is shipped 🚢 and always want to improve what you build Passionate about inclusive teamwork, mentoring, and creating a safe, supportive engineering culture 💕 Nice to have: Experience with event-driven architectures (Pub/Sub, queues), form builders, or domain-driven design Familiarity with observability practices like logging, tracing, and monitoring 🔍 Everyone More ❯