51 to 75 of 183 Software Engineer Jobs in the City of London

Safe Intelligence is on a mission to make AI safe and reliable for everyone. To help us achieve this, we're seeking a Front End Software Engineer to join our team! We're particularly looking for someone with strong front end engineering and Typescript experience and with some experience of backend development (ideally in Golang ). In this … days/week in the office in London (Hammersmith). We're excited to have you contribute to our mission! Responsibilities: As a Safe Intelligence Front End Software Engineer, you will: Make key contributions to software development on our TypeScript-based frontend systems, primarily utilizing React to craft intuitive and highly functional user interfaces. Develop simple and … end neural network training, MLOps, and academic research in machine learning are also beneficial. At a personal level we’re also looking for someone who is: Passionate about delivering software to realise safe AI solutions in line with client needs. Deeply technical and constantly in a state of learning. Able to communicate clearly and efficiently with a variety of More ❯

Software Engineer – AI Startup – Up to 85k 🚀🧠 💰 Salary: £50,000 - £85,000 + meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 1/2 days in office 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being used across … and want to solve real-world problems with the latest in AI and LLMs, this role is for you. In this role, you’ll: 🔧 Build and ship high-impact software 🧠 Work on AI/LLM-powered automation tools used in production 🏗️ Help shape scalable systems and infrastructure 🌍 Work collectively across teams to push the product forward 💻 Be working end … adaptable and comfortable working across their stack ✅ Understand the working dynamics of a fast paced start-up If this role sounds like it could be of interest, apply now! Software Engineer – AI Startup – Up to 85k More ❯

Senior Software Engineer (UK/Europe based - Fully remote) This is an exciting opportunity to work on a project for our client, a well known global company in the music industry. We are looking for a Senior Software Engineer based in the UK/Europe. At Overloop, we are a close-knit small team, committed to … UK based company, and our team currently works remotely from around Europe, Africa and and South America Are you the right candidate? We are looking for a Senior Python Engineer, based in the UK or Europe, and able to work UK hours. What you will do: Build products that empower artists and record labels across the globe Contribute to … in re-architecture, refinement and technical design of various systems Mentor more junior engineers and contribute to a culture of continuous learning Who you are: Seeking 8+ years of software engineering experience in the following areas: Implementing distributed systems Microservice and asynchronous architecture Python and Javascript Building responsive frontend applications (our client uses TypeScript, React, and GraphQL) Database technologies More ❯

Software Engineer Location: Cheltenham, London, Manchester Job Description Responsible for designing, developing, and maintaining large-scale, secure, and high-performing solutions. This role involves mentoring and coaching junior team members, translating stakeholder requirements into actionable user stories, and embedding security throughout the software development life cycle. The position calls for strong technical expertise, collaborative mindset, and an … ability to deliver innovative solutions that align with business objectives. Experience Requirements Software Development & Principles Programming Languages: Proficiency in one or more of: Java, Spring Boot, Python, JavaScript, TypeScript, ReactJS SOLID Principles: Familiarity with object-oriented and clean coding practices Testing & BDD Unit Testing Frameworks: Experience with Cypress, Cucumber, Behave, Selenium, or similar tools Domain-Specific Languages: Knowledge of … record of helping less experienced developers advance their skills and confidence Roles and Responsibilities Collaboration & Full Lifecycle Work collaboratively with Argo and its partners, taking ownership of the full software lifecycle—from requirements gathering to deployment and maintenance Ensure high-quality delivery of product components and systems that meet agreed time, scope, and budget parameters Technical Discussions & Customer Engagement More ❯

Software Engineer Location: Cheltenham, London, Manchester Job Description Responsible for designing, developing, and maintaining large-scale, secure, and high-performing solutions. This role involves mentoring and coaching junior team members, translating stakeholder requirements into actionable user stories, and embedding security throughout the software development life cycle. The position calls for strong technical expertise, collaborative mindset, and an … ability to deliver innovative solutions that align with business objectives. Experience Requirements Software Development & Principles Programming Languages: Proficiency in one or more of: Java, Spring Boot, Python, JavaScript, TypeScript, ReactJS SOLID Principles: Familiarity with object-oriented and clean coding practices Testing & BDD Unit Testing Frameworks: Experience with Cypress, Cucumber, Behave, Selenium, or similar tools Domain-Specific Languages: Knowledge of … record of helping less experienced developers advance their skills and confidence Roles and Responsibilities Collaboration & Full Lifecycle Work collaboratively with Argo and its partners, taking ownership of the full software lifecycle—from requirements gathering to deployment and maintenance Ensure high-quality delivery of product components and systems that meet agreed time, scope, and budget parameters Technical Discussions & Customer Engagement More ❯

Senior Software Engineer II – ML Platform & GenAI (relocation to dubai) Location: Dubai, United Arab Emirates As part of the Machine Learning Platform & Generative AI Applications team, this role sits at the intersection of engineering, data science, and product development. The team builds the foundational tools that power intelligent and engaging user experiences across multiple business verticals. This is … an exciting opportunity for a Senior Software Engineer with expertise in GenAI and platform engineering to contribute as a hands-on technical leader. You will help shape the next generation of AI-driven services by building scalable infrastructure and driving innovative applications from concept to production. Key Responsibilities Design and implement scalable services, APIs, and workflows to support … Collaborate with cross-functional teams including product managers, designers, and data scientists to translate high-level ideas into executable engineering tasks. Qualifications & Requirements 7+ years of professional experience in software engineering with strong design principles and system architecture knowledge. Proficiency in programming languages such as Python, Java, Go, or similar. Experience working with Generative AI and ML infrastructure, including More ❯

Senior Software Engineer II – ML Platform & GenAI (relocation to dubai) Location: Dubai, United Arab Emirates As part of the Machine Learning Platform & Generative AI Applications team, this role sits at the intersection of engineering, data science, and product development. The team builds the foundational tools that power intelligent and engaging user experiences across multiple business verticals. This is … an exciting opportunity for a Senior Software Engineer with expertise in GenAI and platform engineering to contribute as a hands-on technical leader. You will help shape the next generation of AI-driven services by building scalable infrastructure and driving innovative applications from concept to production. Key Responsibilities Design and implement scalable services, APIs, and workflows to support … Collaborate with cross-functional teams including product managers, designers, and data scientists to translate high-level ideas into executable engineering tasks. Qualifications & Requirements 7+ years of professional experience in software engineering with strong design principles and system architecture knowledge. Proficiency in programming languages such as Python, Java, Go, or similar. Experience working with Generative AI and ML infrastructure, including More ❯

Safe Intelligence is on a mission to make AI safe and reliable for everyone. To help us achieve this, we're seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang experience and with some experience of TypeScript and React frontend development . If you also have a knack …/4 days a week in the in our London office. We're excited to have you contribute to our mission! Responsibilities : As a Safe Intelligence Full Stack Software Engineer, you will: Engineering of Golang-based backend systems , focusing on API development and integration. Contribute significantly to software development on our TypeScript-based frontend systems , primarily utilizing … Infrastructure (PKI), and DNS. Ideally, experience with AWS and Terraform or similar IaC tools. At a personal level we’re also looking for someone who is: Passionate about delivering software to realise safe AI solutions in line with client needs. Deeply technical and constantly in a state of learning. Able to communicate clearly and efficiently with a variety of More ❯

Safe Intelligence is on a mission to make AI safe and reliable for everyone. To help us achieve this, we're seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang experience and with some experience of TypeScript and React frontend development . If you also have a knack …/4 days a week in the in our London office. We're excited to have you contribute to our mission! Responsibilities : As a Safe Intelligence Full Stack Software Engineer, you will: Engineering of Golang-based backend systems , focusing on API development and integration. Contribute significantly to software development on our TypeScript-based frontend systems , primarily utilizing … Infrastructure (PKI), and DNS. Ideally, experience with AWS and Terraform or similar IaC tools. At a personal level we’re also looking for someone who is: Passionate about delivering software to realise safe AI solutions in line with client needs. Deeply technical and constantly in a state of learning. Able to communicate clearly and efficiently with a variety of More ❯

Software Engineer | Autonomous Robotics & AI | London (Hybrid | 4x days onsite) About Want to work on software that powers the autonomous age? This defence tech team are building next-generation AI and systems software to help organisations collaborate with robots, sensors, and also autonomous systems. You’ll be joining at a pivotal stage of growth, working with More ❯

companies out there. In order to keep up with demand, and accelerate development of the platform, we are expanding our core engineering team. ‍ About the role: As a Senior Software Engineer at GoodFit, you'll be at the forefront of our technological innovation and product delivery. We're looking for someone who can navigate the fast-paced startup … pragmatism will be key to our success. ‍ You will: Be part of a small team, working in a fully remote-first environment, spanning Europe and UK As a senior software engineer, own understanding of business problems, design, implementation and release of critical features across our stack Design and develop scalable, efficient solutions primarily using JavaScript/TypeScript and … and wider organisation Be comfortable in a rapidly changing startup environment ‍ We'd love to hear from you if you have: You have 5+ years of professional experience in software development, with a proven track record of delivering impactful projects You're highly proficient in JavaScript and TypeScript, with extensive experience in AWS services (e.g., Lambda, Step functions, AppRunner More ❯

Technologies Compensation: Competitive, with performance-based bonus Visa : We are a licensed sponsor under the UK Skilled Worker visa route and are happy to consider applications from international candidates. Software Engineer – Systematic Trading Bayforest is a multi-award-winning, employee-owned investment management group specializing in algorithmic trading. We operate without venture capital or private equity involvement, ensuring … and innovation. We stand out not only for our results but also for our distinctive, research-driven approach that sets us apart from mainstream competitors. We are seeking versatile software engineers to join our exceptional team and contribute to the ongoing development of our proprietary, data-driven systems. You’ll play a key role in designing, implementing, and optimizing … software components that power our systematic trading strategies. This is a rare opportunity to collaborate closely with highly experienced engineers and quantitative researchers whose backgrounds span market-making hedge funds, global tech firms, and leading investment banks. Qualifications Demonstrated interest in mathematics, physics, engineering, or computer science (minimum BSc or equivalent). Proven experience as a software engineer More ❯

Technologies Compensation: Competitive, with performance-based bonus Visa : We are a licensed sponsor under the UK Skilled Worker visa route and are happy to consider applications from international candidates. Software Engineer – Systematic Trading Bayforest is a multi-award-winning, employee-owned investment management group specializing in algorithmic trading. We operate without venture capital or private equity involvement, ensuring … and innovation. We stand out not only for our results but also for our distinctive, research-driven approach that sets us apart from mainstream competitors. We are seeking versatile software engineers to join our exceptional team and contribute to the ongoing development of our proprietary, data-driven systems. You’ll play a key role in designing, implementing, and optimizing … software components that power our systematic trading strategies. This is a rare opportunity to collaborate closely with highly experienced engineers and quantitative researchers whose backgrounds span market-making hedge funds, global tech firms, and leading investment banks. Qualifications Demonstrated interest in mathematics, physics, engineering, or computer science (minimum BSc or equivalent). Proven experience as a software engineer More ❯

Title: Software Engineer Client: Elite Buy-Side Fund Salary: Up to £140,000 + Bonus + Benefits Location: London (Hybrid) The Opportunity: Step into a high-performance role at the intersection of finance and technology. As a software engineer you will develop and optimise critical trading systems, build data-driven solutions and work with cutting-edge More ❯

Title: Software Engineer Client: Elite Buy-Side Fund Salary: Up to £140,000 + Bonus + Benefits Location: London (Hybrid) The Opportunity: Step into a high-performance role at the intersection of finance and technology. As a software engineer you will develop and optimise critical trading systems, build data-driven solutions and work with cutting-edge More ❯

Software Engineer Key Technologies: C#, SQL, React, Bloomberg, Fidessa, FactSet APIs London Perm Role | 4 Days Onsite £55,000 - £65,000 Harrington Starr has partnered with a well-established London based Investment Bank to find a Full Stack Developer at the Associate level. This is a hands-on development role, supporting a range of internal systems across trading … and business operations. Key Responsibilities: Develop and maintain software using C#, SQL, and React Integrate real-time and historical data from third-party APIs Follow agile sprint plans and deliver reliable, secure solutions Ensure systems meet regulatory and cybersecurity standards Key Benefits: Salary up to £65,000 depending on experience 4 days onsite in a central London office Exposure More ❯

Software Engineer Key Technologies: C#, SQL, React, Bloomberg, Fidessa, FactSet APIs London Perm Role | 4 Days Onsite £55,000 - £65,000 Harrington Starr has partnered with a well-established London based Investment Bank to find a Full Stack Developer at the Associate level. This is a hands-on development role, supporting a range of internal systems across trading … and business operations. Key Responsibilities: Develop and maintain software using C#, SQL, and React Integrate real-time and historical data from third-party APIs Follow agile sprint plans and deliver reliable, secure solutions Ensure systems meet regulatory and cybersecurity standards Key Benefits: Salary up to £65,000 depending on experience 4 days onsite in a central London office Exposure More ❯

Software Engineer - Python (FinTech) Join a fast-growing fintech on a mission to redefine how people interact with their finances. Help build a real-time platform that empowers individuals and businesses with smarter, faster and more transparent financial tools, all wrapped in a seamless user-centric experience. We believe in challenging the status quo, building products people love … and having fun along the way. We’re looking for a talented Python Engineer who’s passionate about creating an exceptional real-time data platform that will process and deliver data instantaneously; allowing for instant insights and actions. In finance, these systems are crucial because markets move very quickly, and delays of even milliseconds can have big consequences. Essential More ❯

Software Engineer - Python (FinTech) Join a fast-growing fintech on a mission to redefine how people interact with their finances. Help build a real-time platform that empowers individuals and businesses with smarter, faster and more transparent financial tools, all wrapped in a seamless user-centric experience. We believe in challenging the status quo, building products people love … and having fun along the way. We’re looking for a talented Python Engineer who’s passionate about creating an exceptional real-time data platform that will process and deliver data instantaneously; allowing for instant insights and actions. In finance, these systems are crucial because markets move very quickly, and delays of even milliseconds can have big consequences. Essential More ❯

Software Engineer | Climate Tech | London (Hybrid) Want to code for impact ? This early-stage climate tech startup is building the software powering the transition to a cleaner, smarter energy system - and they’re looking for engineers who love to move fast, solve hard problems , and see their work make a real difference. Backed by top-tier investors … knit, mission-driven team They’re open to all OOP languages (core stack is Python ). 📍 London | Hybrid (2-3 days/week) If you’re ready to build software that accelerates the shift to clean energy - apply now More ❯

Software Engineer | Climate Tech | London (Hybrid) Want to code for impact ? This early-stage climate tech startup is building the software powering the transition to a cleaner, smarter energy system - and they’re looking for engineers who love to move fast, solve hard problems , and see their work make a real difference. Backed by top-tier investors … knit, mission-driven team They’re open to all OOP languages (core stack is Python ). 📍 London | Hybrid (2-3 days/week) If you’re ready to build software that accelerates the shift to clean energy - apply now More ❯

For this role it is essential that you currently hold or have recently held DV clearance. About us We’re a unique, family operated software development company founded in 2016 on trust, talent and care. We have created a close-knit community where we really connect with and support each other. Work-life balance, collaboration and professional development are … always at the forefront of what we do. We specialise in building and consulting on bespoke applications tailored to customer requirements. We use the latest technologies and best software practices to engineer top quality systems which we can be proud of. We always put total trust in our engineers’ skillsets and avoid micro-management and bureaucracy. Join our … team today for the opportunity to be a big part of a small, high-performing software company delivering meaningful work. Job Description As a senior software engineer, you will be responsible for designing and building industry-leading software in response to customer business needs. You’ll be expected to take ownership over areas of software More ❯

For this role it is essential that you currently hold or have recently held DV clearance. About us We’re a unique, family operated software development company founded in 2016 on trust, talent and care. We have created a close-knit community where we really connect with and support each other. Work-life balance, collaboration and professional development are … always at the forefront of what we do. We specialise in building and consulting on bespoke applications tailored to customer requirements. We use the latest technologies and best software practices to engineer top quality systems which we can be proud of. We always put total trust in our engineers’ skillsets and avoid micro-management and bureaucracy. Join our … team today for the opportunity to be a big part of a small, high-performing software company delivering meaningful work. Job Description As a senior software engineer, you will be responsible for designing and building industry-leading software in response to customer business needs. You’ll be expected to take ownership over areas of software More ❯

Senior Golang Software Backend Engineer Fully Remote/UK Working Hours A couple of Senior Golang Software Backend Engineers are required for an exciting and innovative Software house company based in London and Hong Kong. The company operates at the forefront of sports, entertainment, and cryptocurrency, and they are growing rapidly. The successful Software Backend … Engineer will be responsible for developing and maintaining company’s complex backend systems, working closely with other engineers to design and implement efficient and reliable solutions that deliver exceptional user experiences. But more than that, they are seeking a results-oriented individual who is eager to coach and mentor team members, helping them grow both professionally and personally. Their … development team uses various different programming languages with a particular focus on Golang but they are looking primarily for strong software developers first and experiences of technologies second. The company is made up of some of the very best software developers and mathematicians. Each brings their unique perspective from their backgrounds in computer science, physics, mathematics, statistics and More ❯

Senior Software Engineer – Backend (Java) 📅 6-Month Contract | 🏢 Hybrid (2 Days in Office) | 💷 £600 p/d inside ir35 We’re looking for a skilled Backend Java Engineer to join an innovative team on a 6-month contract. If you love solving complex problems, mentoring others, and working on cutting-edge data platforms at scale- this one More ❯