76 to 100 of 103 Software Engineering Jobs in the City of London

to help cutting-edge start-ups and scale-ups grow, while also partnering with household names like Ford, Gousto, and Rightmove. Build relationships with CTOs, AI experts, and senior software engineers from day one. Get one-on-one mentorship from industry leaders whove billed seven figures, and work toward a commission structure with no threshold! Whats in it for More ❯

Senior Software Engineer/Developer (C# .Net) London onsite to £150k Are you an experienced C#, backend focussed Software Engineer? You could be progressing your career in a senior, hands-on role at a global Asset Manager with c$3 million under management. As a Senior Software Engineer within the trading engine team you'll collaborate to … are collaborative with excellent communication and stakeholder management skills You are degree educated in Computer Science or similar technical discipline What's in it for you: As a Senior Software Engineer/Developer you will receive a competitive package: Salary to £150k Bonus paid every six months based on personal performance (10-25%) Professional development Pension Health Insurance Gym … membership Social events, free fruit, snacks, coffee etc. Apply now to find out more about this Senior Software Engineer/Developer (C# .Net) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and More ❯

Join us an AI Software Engineer at Peregrine Resourcing. How Specialist Talent Works: At Peregrine, we find the best talent for our clients. As a permanent employee of Peregrine, with access to all our standard benefits, you will be deployed across our portfolio of clients as a specialist consultant, working on a wide array of complex projects across multiple … industries. The Role: Software Engineer with AI skills focused on building intelligent systems, enhancing enterprise solutions, and driving innovation. Responsibilities: Design and implement AI-powered features for enterprise software, such as intelligent search, predictive analytics, and automation tools. Build custom machine learning models tailored to client-specific use cases Collaborate with product teams to identify opportunities for AI … RESTful APIs or cloud-native platforms (e.g., Azure, AWS). Ensure high availability and fault tolerance of AI services in production environments. Build robust data pipelines for preprocessing, feature engineering, and real-time inference. Set up monitoring tools to track model performance, drift, and system health. Iterate quickly based on feedback, usage metrics, and evolving business needs. Partner with More ❯

Founding Product Engineer Software Engineer | C# | .NET | React | TypeScript | FinTech | Start-Up | London We are seeking a talented Software Engineer to join as a Founding Product Engineer at an early-stage fintech. You will work on building an instant, transparent, and affordable payments network. This role is perfect for a Software Engineer who thrives in a start … do: Work directly with leadership to design, build, and launch the core platform using C#, .NET, TypeScript, and React. Write high-quality, maintainable code daily as a hands-on Software Engineer. Build backend APIs, front-end web apps, and systems integrations using C# and .NET, with React and TypeScript on the front end. Leverage AI tools to design, debug … features faster, boosting productivity. Influence architectural decisions, including enterprise patterns such as microservices, DDD, and CQRS. Who you are: Experienced in C#, .NET,with 3+ years experience as a Software Engineer. Comfortable working across the full stack and adapting to new technologies quickly. Its preferred that candidates have worked with TypeScript/React however this role is Backend leaning. More ❯

Java Software Engineer - Asset Management Software ?? Salary: £70,000 - £80,000 + bonus + benefits ?? Approximately 3 days a week in Central London office. A central London-based company, who are building trading software for the asset management and hedge fund industry, are looking for a Java Software Engineer to join them on their mission. This … scale-up is a spin-out from one of the largest UK born global asset managers. ? They are looking for a Java Software Engineer with the following: Mid level commercial Core Java development background Multithreading, concurrency and high-throughput experience AWS/Public Cloud experience with DevOps tools An advocate for modern methodologies including TDD, pair-programming and CD … Tech: Core Java, Multithreading, Concurrency, AWS, DevOps, ActiveMQ/MongoDB, Kafka The role will suit a Java Software Engineer with a strong enthusiasm to work in a fast-paced, financial environment and who has a natural interest in the trading industry. Day-to-day, you will be building distributed, low-latency systems and will be working in a team More ❯

Backend Software Engineer/Developer (C# .Net) London onsite to £150k Are you an experienced C#, backend focussed Software Engineer? You could be progressing your career in a senior, hands-on role at a global Asset Manager with c$3 million under management, earning substantial bonuses. As a Backend Software Engineer within the trading engine team you … are collaborative with excellent communication and stakeholder management skills You are degree educated in Computer Science or similar technical discipline What's in it for you: As a Backend Software Engineer/Developer you will receive a competitive package: Salary to £150k Bonus paid every six months based on personal performance (10-25%) Professional development Pension Health Insurance Gym … membership Social events, free fruit, snacks, coffee etc. Apply now to find out more about this Backend Software Engineer/Developer (C# .Net) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and More ❯

Lead Software Engineer – Tech Consultancy - Remote First (1 day a week in Office) London We are a technology consultancy built by engineers, for engineers are partner with some of the most exciting tech companies in the UK, helping them bridge technology gaps, accelerate delivery, improve code quality, and scale products that matter. the mission is simple: deliver impact through … engineering excellence. We’re looking for Lead Engineers to join a growing consultancy team. This is a hands-on role with leadership responsibilities – you’ll guide delivery, mentor engineers, and set technical direction while staying close to the code. You’ll focus primarily on backend development, but with enough frontend experience (React, Vue, or Angular) to contribute across the … Bonus scheme and benefits Remote-first with only 1 day a week in Shoreditch office (at most) High-impact projects with leading clients A culture built around engineering excellence, collaboration, and delivery More ❯

I'm lookout for a Senior Software Developer who enjoys wrangling geospatial data, shaping technical direction, and mentoring junior devs without making them cry (ideally). You’ll be helping design, build, and scale systems that literally protect people and businesses from chaos. You won’t need to wear a cape—but if you have one, that’s fine … and data teams without resorting to interpretive dance. Refactor legacy code without crying. Or while crying—we don’t judge. Monitor systems like a hawk with a dashboard. Link engineering strategy to business goals (while avoiding buzzword bingo). Represent engineering in meetings where someone inevitably says “let’s just make it AI.” Champion sensible things like accessibility … don’t break out in hives at the sight of legacy code. You understand the importance of CI, testing, and not YOLOing into production. You’ve worked the full software lifecycle and lived to tell the tale. You can read and process geospatial data without rage-quitting. You’ve used AWS and serverless tools, and ideally haven’t cursed More ❯

We are a Global Recruitment specialist that provides support to the clients across EMEA, APAC, US and Canada. We have an excellent job opportunity for you. Role Title: Software Developer Location: Manchester, Cheltenham or London Clearance required: eDV Duration: 5+ months Role Description: • Java development • Object store configuration and containerisation • Docker, Kubernetes • Back-end software development using Python … and Java • Relational databases and SQL • Experience integrating 3rd party software, scripting/glue work • Experience building and deploying web user interfaces • Experience working closely with or in national security missions • Agile approaches to delivery • Good problem-solving skills and understanding of how to trace faults/errors in the system • Ability to present technical ideas clearly and work More ❯

We are a Global Recruitment specialist that provides support to the clients across EMEA, APAC, US and Canada. We have an excellent job opportunity for you. Role Title: Software Developer Location: Manchester, Cheltenham or London Clearance required: eDV Duration: 5+ months Role Description: • Java development • Object store configuration and containerisation • Docker, Kubernetes • Back-end software development using Python … and Java • Relational databases and SQL • Experience integrating 3rd party software, scripting/glue work • Experience building and deploying web user interfaces • Experience working closely with or in national security missions • Agile approaches to delivery • Good problem-solving skills and understanding of how to trace faults/errors in the system • Ability to present technical ideas clearly and work More ❯

Senior Software Engineer (Kotlin) ?? Up to £105,000 + bonus + excellent Benefits ?? Hybrid - 2 days onsite in Central London (Zone 1) Are you a JVM engineer curious about Kotlin - or already loving it? Want to solve complex problems that contribute to a greener, more sustainable world? ???? Join a high-calibre engineering team building modern, customer-facing and … and evolve platform architecture across distributed systems. Analyse production systems to uncover and resolve performance issues. Lead backend design using Kotlin (or JVM), supporting a polyglot mindset. Collaborate across engineering to improve practices, tooling, and system design. Mentor and influence technical direction company-wide. Tech & Environment Kotlin (JVM) , distributed systems, microservices, CI/CD Cloud-native platforms (AWS/… GCP), modern engineering culture What They're Looking For Deep JVM/backend experience; Kotlin a bonus, but not required. Strong systems thinker with a track record of architectural leadership. Experience scaling production systems in fast-moving product environments. Clear communicator who enjoys cross-functional collaboration and technical ownership. Want to work on complex problems with real-world environmental More ❯

C++ Developer/Backend Software Engineer (Windows C/C++, C#) London to £70k FTC Are you a skilled C++ Developer? You could be progressing your career in a senior, hands-on role at a global market data provider whilst enjoying a range of perks and benefits. As a C++ Developer you will join an Agile team focussed on … building and maintaining Exchange Connectivity software systems that require real-time and low latency, maintaining data feeds and developing key underlying transport protocols for data transmission. The platform has been built with C++ and C# deploying to AWS and requires high scalability and low latency - they currently handle 40 billion messages per day. Location/WFH: You'll join … the other two days. Please note this is a 12 month Fixed Term Contract. About you: You have C/C++ development skills on Windows OS You have full software development lifecycle experience You have a good knowledge of networking protocols e.g. TCP/IP, multicast You have a strong grounding in Computer Science fundamentals e.g. multi-threading, OOP More ❯

We're looking for a Senior-level Software Engineer with strong JavaScript/TypeScript skills and experience across modern web stacks. You'll be instrumental in our transition away from Drupal as we modernise and scale our platform. Tech Stack: At least 4 years commercial experience with JavaScript or TypeScript and Node Exposure of Laravel and/or Python More ❯

TypeScript, GraphQL Salary up to £95k + Benefits Are you passionate about crafting beautifully engineered, maintainable systems — and helping others do the same? We're looking for a Senior Software Engineer to join a fast-growing, product-led tech company that's redefining how engineering teams deliver value through smarter insights and modern architectures. You'll be joining … mission-critical insights for global clients. This isn't just another coding role — it's a chance to shape architecture, mentor peers, and lead by example in a modern engineering culture that embraces AI-assisted development tools like GitHub Copilot etc. 💻 What You'll Do Design and implement clean, testable, maintainable software across the stack Lead the evolution … modern DevOps Mentor teammates and foster a culture of technical excellence and growth Continuously improve delivery processes using cutting-edge AI tools 👀 About You 5–7 years in commercial software development Strong experience with React , TypeScript , and/or GraphQL (backend skills in Node.js , Python , or Go a plus) Comfortable designing and contributing to design systems and component libraries More ❯

Applied AI Software Engineer - Python, Fast API, AWS, LLMs OB are partnered with a high-growth, B2B SaaS start-up who are looking to hire a highly skilled Applied AI Engineer to their Product Engineering team, where you'll pioneer the development of complex applications leveraging GenAI models. This role won't be a role focused on building … and training models from scratch, instead you'll leverage the latest tools in AI to build software that helps solve business problems, adds value to the product and shape the businesses AI roadmap. Applied AI Software Engineer - Python, Fast API, AWS, LLMs Key skills and experience: 5+ years of experience, ideally working in high-growth start-up or … top ranked University Base salary of £80k-£110k Exceptional equity and benefits package Hybrid working, with 2-3 days a week required in a Central London office Applied AI Software Engineer - Python, Fast API, AWS, LLMs More ❯

A well-established business is looking for an accomplished Software Engineer with expert Python skills to join its organisation. Please note, this role is Outside IR35. The company embraces hybrid and flexible working so you will be able to work fully remotely, with occasional visits (perhaps once per month) to the office in London. Web, software, and AI … enabled technology are fundamental to the success of the business so you must have proven experience of developing great software in Python and an interest in adopting cutting-edge technology. In order to be suitable for this Lead Software Engineer role you must be an accomplished developer with a passion for technology and desire to mentor a team. … You will hold proven experience delivering SaaS projects in Python and will be keenly interested in AI and ML. Experience with AWS and data engineering would be advantageous to your application. In this role of significant responsibility, you will be both a Lead Developer and guide 2 in-house developers and an offshore team. You will act as a More ❯

A well-established business is looking for an accomplished Software Engineer with expert Python skills to join its organisation. Please note, this role is Outside IR35. The company embraces hybrid and flexible working so you will be able to work fully remotely, with occasional visits (perhaps once per month) to the office in London. Web, software, and AI … enabled technology are fundamental to the success of the business so you must have proven experience of developing great software in Python and an interest in adopting cutting-edge technology. In order to be suitable for this Lead Software Engineer role you must be an accomplished developer with a passion for technology and desire to mentor a team. … You will hold proven experience delivering SaaS projects in Python and will be keenly interested in AI and ML. Experience with AWS and data engineering would be advantageous to your application. In this role of significant responsibility, you will be both a Lead Developer and guide 2 in-house developers and an offshore team. You will act as a More ❯

Software Developer/Engineer (C++ Mac Extensions EDR) WFH/London to £80k Do you have experience developing and integrating Mac software? You could be progressing your career at a rapidly expanding scale-up software house that is developing a highly complex network cyber security platform; the platform monitors network protocols in real-time, parses the commands … data structures to extract key metadata which is then analysed by in-house algorithms and allows customers to detect hackers, malware, data leakage and other malicious activity. As a Software Developer you will focus on enabling the core product, written in C/C++ for Windows and Linux to run on Apple Mac software, using the latest Extensions … of the time, meeting up with colleagues in the London office once or twice a month. About you: You have strong C++ development skills You have experience of integrating software with Apple Mac Extensions and APIs You have a good knowledge of Network Security and EDR/EDTR You have VPN client or security experience You're collaborative with More ❯

Lead Java Developer/Backend Software Engineer London to £135k Do you have advanced Java technical knowledge combined with team leadership skills? You could be progressing your career at the Investment Management arm of a global bank. As a Lead Java Developer you will head up a small, globally distributed team responsible for writing production quality Java code used … and collaboration skills You are degree educated in Computer Science or similar technical or numerate discipline What's in it for you: As a Lead Java Developer/Backend Software Engineer you will receive a competitive Salary to £135k Bonus Pension One day work from home per week Continuous training and career progression opportunities Apply now to find out … more about this Lead Java Developer/Backend Software Engineer (OOP Java Algorithm) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender More ❯

/Tech Lead with a background in C#/.Net (and ideally Angular). The Role As a member of a skilled large global team (London, NYC, Mumbai) of software engineers, you will play a role in developing the core trading platform. The customers are varied; traders, analysts, researchers and data scientists. Essential Skills: 10+ years of experience working … with C#/.NET (8) technologies 5+ years in a leadership role, managing 5+ software engineers (code reviews, architecture) Experience with RDBMS (Oracle, SQL Server, Sybase) Experience working in an agile scrum development model 5+ Years experience of building ETRM solutions Self-motivated with the ability to prioritize 3+ years Angular experience (ideally version 16+) Desirable Skills: Strong stakeholder More ❯

/Tech Lead with a background in C#/.Net (and ideally Angular). The Role As a member of a skilled large global team (London, NYC, Mumbai) of software engineers, you will play a role in developing the core trading platform. The customers are varied; traders, analysts, researchers and data scientists. Essential Skills: 10+ years of experience working … with C#/.NET (8) technologies 5+ years in a leadership role, managing 5+ software engineers (code reviews, architecture) Experience with RDBMS (Oracle, SQL Server, Sybase) Experience working in an agile scrum development model 5+ Years experience of building ETRM solutions Self-motivated with the ability to prioritize 3+ years Angular experience (ideally version 16+) Desirable Skills: Strong stakeholder More ❯

Flight Software Engineer London Permanent Position - Hybrid (3 days on site per week) There aren't many positions that come up like this, it's an opportunity to join a company who are almost certain to make a huge impact on their market. They are an autonomous systems start up based in London, developing technology to ensure technology in … this space does what it's supposed to do. They are looking for a flight software engineer to join the team for Ai and robotics applications. Experience sought is below: Developing software for robotics, UAV or autonomous systems. Preferably in safety-critical or mission critical environments. algorithm experience for navigation, control, planning, decision making etc. Robotics framework experience More ❯

Title : Senior Software Engineer (Compilers) Company : HPC R&D Location : London (primarily remote) Pay : Up to £160,000 + bonus + benefits Company : An advanced HPC R&D firm, looking to expand the UK compiler team. Most of the team are ex-Big-Tech, ex-FAANG or ex-Chip firms. They joined because they get more flexibility and have … significantly smaller, with highly technical leadership. If you want to work alongside some of the brightest, most enthusiastic people in the industry, this may be worth exploring. Role : Senior Software Engineer position with an emphasis on AI Compiler development. You will be a significant hire and will own much of the development of a cutting-edge compiler development project. More ❯

Software Engineer/Front End Developer (TypeScript React Native AI) London/WFH to £65k Want to work on intellectually and technically challenging AI systems at the cutting edge of what is possible, whilst learning and collaborating with an amazing team and enjoying flexible working and a range of other perks? You could be progressing your career as a … Software Engineer at a well-established AI com click apply for full job details More ❯

/London to £80k Do you have C++ coding skills combined with experience of developing Mac Extensions? You could be progressing your career at a rapidly expanding scale-up software house that is developing a highly complex network cyber security platform; the platform monitors network protocols in real-time, parses the commands and data structures to extract key metadata … other malicious activity. As a C++ Developer you will focus on enabling the core product, written in C/C++ for Windows and Linux to run on Apple Mac software, using the latest Extensions, tools and API integrations. Location/WFH: You can work from home most of the time, meeting up with colleagues in the London office once … or twice a month. About you: You have strong C++ development skills You have experience of integrating software with Apple Mac Extensions and APIs You have a good knowledge of Network Security You have VPN client or security experience You're collaborative with great communication skills You have experience of producing technical documentation You're degree educated in Computer More ❯