1 to 25 of 76 Permanent Software Engineering Jobs in the City of London

Cloud Software Engineering Location: Hybrid – London Salary: £70,000 – £85,000 (depending on experience) + 10% Bonus Are you a software engineer with deep cloud expertise, looking to shape complex platform solutions at scale? We’re seeking a Cloud Software Engineer with strong engineering foundations and hands-on experience delivering cloud-native, microservices-based applications … code reviews, promote best practices, and mentor junior engineers. Continuously evaluate emerging technologies to keep platforms modern, secure, and efficient. Required Technical & Professional Experience: 5+ years of experience in software development and cloud engineering. Current working for a consultancy firm. Proven expertise in building and deploying microservices-based applications. Strong coding skills in Java, Node.js, and Python . Hands … CD tooling. Excellent problem-solving skills with a detail-oriented mindset. Strong interpersonal skills and ability to work in a collaborative team environment. Bachelor’s degree in Computer Science, Engineering, or related field. Preferred Skills: Experience with front-end frameworks such as React . Working knowledge of database technologies: SQL and NoSQL . Exposure to project management and Agile More ❯

Software Integrations Engineer A fantastic opportunity for a Software Integrations Engineer to join a high-growth B2B SaaS company delivering powerful solutions to enterprise clients. This position is perfect for a software engineer who enjoys working across systems—developing features, building integrations, and enabling smooth deployment of complex software products into client environments. This is a … hands-on engineering role focused on writing and maintaining code to support integration pipelines, APIs, and data flows—working as part of a collaborative, high-performing product and engineering team. Location: Central London – minimum 3 days per week onsite Salary: £50,000 – £75,000 (depending on experience) excellent benefits Requirements for Software Integrations Engineer Strong commercial experience … as a Software Engineer or Developer, ideally within a SaaS or cloud-based environment Solid programming skills in at least one modern language (e.g. Python, JavaScript, TypeScript, Java, Go, etc.) Experience designing and building API-driven integrations and working with third-party platforms This company values an excellent academic history so is looking for a 2:1 or above More ❯

Senior Full Stack Software Engineer Tech : AWS Lambda, React with Next.js, TypeScript, Node.js, and Terraform Why? start-up financial services, revolutionising the industry Location : Hybrid - 3-4 days in the office (London) Salary : £80k - £95k + benefits Our Client A new UK-based financial services provider is launching a credit card offering aimed at delivering fair, flexible, and user … friendly financial products to consumers. The organisation is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Senior Full Stack Software Engineer - Responsibilities Collaborate with Product Owners to ensure that the technical roadmap aligns with the product vision. Actively participate in product planning meetings and provide technical input to guide … guidance and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols. Contribute to the development of technical documentation and standards. Senior Full Stack Software Engineer - Experience Required Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience Proven experience as a Full Stack Engineer or More ❯

About the Role: We are seeking an experienced and visionary Technical Lead with deep expertise in Java Spring Boot, microservices architecture, and solution design to lead the backend engineering efforts of our enterprise platforms. This role requires strong architectural acumen, hands-on coding capability, and a leadership mindset to guide teams across the full software development lifecycle. Exposure … to mobile application ecosystems, collaboration across cross-functional teams, and experience in the banking or financial services domain will be strong assets. You’ll work closely with engineering managers, architects, mobile teams, and product stakeholders to deliver scalable, secure, and maintainable solutions. Key Responsibilities: • Design and develop scalable, secure, and high-performance backend systems using Java, Spring Boot, and … system issues in development and production environments. • Contribute to solutioning, estimations, and project planning in agile delivery models. Required Qualifications: • Bachelor’s or Master’s degree in computer science, Engineering, or related field. • 10+ years of professional experience in backend development, with at least 3+ years in technical leadership or solution design roles. • Strong expertise in Java, Spring Boot More ❯

Senior Full Stack Software Developer Tech : AWS Lambda, React with Next.js, TypeScript, Node.js, and Terraform Why? start-up financial services, revolutionising the industry Location : Hybrid - 3-4 days in the office (London) Salary : £80k - £95k + benefits Our Client A new UK-based financial services provider is launching a credit card offering aimed at delivering fair, flexible, and user … friendly financial products to consumers. The organisation is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Senior Full Stack Software Developer - Responsibilities Collaborate with Product Owners to ensure that the technical roadmap aligns with the product vision. Actively participate in product planning meetings and provide technical input to guide … guidance and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols. Contribute to the development of technical documentation and standards. Senior Full Stack Software Developer - Experience Required Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience Proven experience as a Full Stack Engineer or More ❯

work in heavy industry across six million sites globally. Their work is risky and complex, in often remote locations. They still deal with a lot of paper, multiple (clunky) software tools and manual processes to simply get work done. This means many avoidable health and safety incidents and enormous waste in work execution. Every 10 seconds, someone loses their … UI web components that are cross browser compatible. • Contribute to all phases of the development lifecycle • Work independently and own feature development from concept to delivery. • Collaborate with the engineering team and contribute to the overall design of the system. • Develop automated tests and conduct performance tuning • Contribute to code reviews Key qualifications • Bachelor's degree in a technical … field, computer science, software engineering or similar. • 10+ years’ experience in software development, spanning backend, web frontend and large scale systems • In-depth knowledge of Angular, React or NextJS, including state management (NGRX, Redux) • Expert knowledge of Typescript and reactive patterns • Strong understanding of modern Domain Driven Design or similar methodologies • Knowledge of SOLID principles and Test More ❯

Back End Developer/Software Engineer (C# .Net Core Cloud CQRS) London/WFH to £80k Are you a technologist with strong backend C# .Net skills? You could be progressing your career at in a senior, hands-on role Back End Developer role at a successful and scaling Retail FX Brokerage working on complex and interesting Greenfield systems with … or Angular You have strong analytical and problem solving skills You're collaborative with excellent communication skills What's in it for you: As a Back End Developer/Software Engineer you will earn a competitive package: Up to £80k salary Bonus Private Healthcare Pension 25 days holiday Apply now to find out more about this Back End Developer …/Software Engineer (C# .Net Core React) 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 identity or expression, sexual orientation, national More ❯

Full Stack Software Developer Tech : AWS Lambda, React with Next.js, TypeScript, Node.js, and Terraform Why? start-up financial services, revolutionising the industry Location : Hybrid - 3-4 days in the office (London) Salary : £80k - £95k + benefits Our Client A new UK-based financial services provider is launching a credit card offering aimed at delivering fair, flexible, and user-friendly … financial products to consumers. The organisation is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Full Stack Software Developer - Responsibilities Collaborate with Product Owners to ensure that the technical roadmap aligns with the product vision. Actively participate in product planning meetings and provide technical input to guide the team … technical guidance and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols. Contribute to the development of technical documentation and standards. Full Stack Software Developer - Experience Required Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience Proven experience as a Full Stack Engineer or More ❯

Full Stack Software Engineer Tech : AWS Lambda, React with Next.js, TypeScript, Node.js, and Terraform Why? start-up financial services, revolutionising the industry Location : Hybrid - 3-4 days in the office (London) Salary : £80k - £95k + benefits Our Client A new UK-based financial services provider is launching a credit card offering aimed at delivering fair, flexible, and user-friendly … financial products to consumers. The organisation is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Full Stack Software Engineer - Responsibilities Collaborate with Product Owners to ensure that the technical roadmap aligns with the product vision. Actively participate in product planning meetings and provide technical input to guide the team … technical guidance and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols. Contribute to the development of technical documentation and standards. Full Stack Software Engineer - Experience Required Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience Proven experience as a Full Stack Engineer or More ❯

Senior Software Engineer Full Stack - AI Health Tech London, 3 days a week on site Up to £110,000 + Equity Looking to work on something meaningful? I'm currently helping a mission-led health tech start-up who are using AI to remove admin overload, freeing up doctors and clinicians to do what they do best: care. They … C# Strong front-end experience (React, Vue, Angular - your choice) Cloud architecture know-how (AWS, Azure, GCP - any flavour works) Solid understanding of relational databases Background in Computer Science, Engineering, Maths, or similar Experience in a start-up, greenfield, or high-autonomy team environment Passionate problem-solver with a bias for ownership and impact Bonus Points If... You've More ❯

Software Engineering Lead/Technical Lead/Principal Software Engineer/Lead Software Engineer I've worked in the recruitment sector for over 15 years and this is one of the most interesting opportunities I've worked on in Software Engineering. If you are passionate, curious, hungry and seeking an opportunity to make your mark … Backed by leading global VCs, and brings together seasoned, experienced payment, banking and tech industry professionals who are aiming to redefine the market that they operate in. Job Description Software Engineering Lead/Technical Lead/Principal Software Enginer/Lead Software Engineer for Backend services you will be responsible for a range of backend systems … such as Software applications that include areas such as: Payment Gateway, Settlement, Transaction Fraud Monitoring, Datalake Service and the Core Banking System. You will oversee their deployment, development, enhancements and production operations. You should have extensive experience and skills in Software Engineering, DevOps, project management, incident management, team management and stakeholder management. Additionally, you should have expertise More ❯

Akkodis is a global leader in engineering, technology, and R&D, harnessing the power of connected data to drive digital transformation and innovation for a smarter, more sustainable future. As part of the AdeccoGroup, Akkodis combinesthe expertise of AKKA and Modis, with over 50,000 engineers and digital specialists across 30 countries in North America, EMEA, and APAC. Our … teams bring extensive cross-sector knowledge in critical technology areas such as mobility, software services, robotics, simulations, cybersecurity, AI, and data analytics, enabling clients to tackle complex challenges in today’s rapidly evolving markets. With a comprehensive solution portfolio acrossfour service lines—Consulting, Solutions, Talents, and Academy—Akkodis supports clients from concept through to full-scale deployment and optimisation. … learning and global collaboration, where you can make a meaningful impact through innovative projects that shape the future of technology. Position Summary: We are seeking a Mid-Level Java Software Engineer to join our dynamic Financial Services technology team. In this role, you’ll design, develop, and maintain enterprise-grade financial applications while collaborating with cross-functional teams including More ❯

Senior Python Software Engineer/Developer London/WFH to £110k Would you like to join a growing and profitable start-up that is viewed as a leading FinTech disruptor in a senior role that will allow you a great deal of influence and progression? As a Senior Python Software Engineer you will architect and build highly performant … and scalable solutions using SOLID design principles, collaborating with cross functional Agile project teams in 2 week Sprints, you'll be an advocate of best practice and ensure software is delivered to schedule. There's a host of new features and development work and you'll also help to drive the adoption of AI within the business, introducing things … s a hybrid policy, with two days in the brand new London offices and flexibility to work from home three days a week. About you: You are an experienced Software Developer/Engineer with a strong knowledge of modern best practice You have strong Python backend development skills, ideally also C# coding skills You have a good knowledge of More ❯

care providers from manually sifting through large amounts of data, allowing them to make decisions quicker. They are a seed stage start up- so we're looking for strong software engineers that want to take ownership of their products and tackle complex problems. For this role you will be excited about the opportunity of AI to better people's … lives. This is a software engineering role first, but experience with LLMs in production would be a big plus. What You'll Do: Take ownership of the product development lifecycle Architect and develop across the stack Work closely with the CTO and CEO Architect, develop, deploy and maintain AI workflows to automate tasks in healthcare Integrate LLMs into … Python Proficiency with a modern JS front end framework (React, Vuejs, Angular) Experience with cloud architecture (Azure, AWS or GCP) In depth knowledge of relational database Degree in Maths, Engineering, Computer Science or related Proven experience building scalable systems/applications in start ups OR greenfield projects in a larger org (eg start up like team incubated in larger More ❯

Senior .Net Developer/Software Engineer (Windows Desktop Trading Systems) London to £140k Are you a Senior .Net Developer with strong Windows desktop development skills combined with banking/financial services experience? You could be progressing your career at a Hedge Fund with over $10 billion under management. As a Senior .Net Developer you will work on critical systems … have excellent communication and stakeholder management skills You're degree educated in Computer Science or similar discipline What's in it for you: As a Senior .Net Developer/Software Engineer you will earn a competitive package: Salary to £140k + bonus Pension and Private Healthcare Hybrid working (x3 days in London office) Impactful role working on cutting edge … AI technology Excellent career growth opportunities Apply now to find out more about this Senior .Net Developer/Software Engineer (Windows Desktop Trading Systems) 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 More ❯

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media … The existing Oracle database will be migrated to Postgres or MySQL and testing this will be critical. This is not a straightforward lift-and-shift. The migration involves: Re-engineering procedural logic from PL/SQL into C# application code within a .NET environment. Decoupling business logic from the Oracle database , transforming it into maintainable, testable services. Mapping Oracle … the existing Oracle PL/SQL codebase throughout the migration. Translate and refactor Oracle stored procedures and other database logic into efficient and maintainable C# code. Work closely with software engineers and business analysts to accurately capture and re-implement business logic in the new architecture. Troubleshoot issues arising from differences in execution behaviour between PL/SQL and More ❯

production and improving system design and infrastructure. You’ll also guide a small technical team (2–3 people), but the focus remains deeply technical - ideal for someone from a software engineering background. What you'll do: Build and scale NLP/document processing pipelines using microservices Lead 2–3 reports (data scientists + AIOps engineer) Set engineering More ❯

Senior C# Developer/Software Engineer (Windows Desktop Trading Systems) London to £140k Are you a Senior C# Developer with strong Windows desktop development skills combined with banking/financial services experience? You could be progressing your career at a Hedge Fund with over $10 billion under management. As a Senior C# Developer you will work on critical systems … have excellent communication and stakeholder management skills You're degree educated in Computer Science or similar discipline What's in it for you: As a Senior C# Developer/Software Engineer you will earn a competitive package: Salary to £140k + bonus Pension and Private Healthcare Hybrid working (x3 days in London office) Impactful role working on cutting edge … AI technology Excellent career growth opportunities Apply now to find out more about this Senior C# Developer/Software Engineer (Windows Desktop Trading Systems) 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 More ❯

My client, a growing HealthTech specialist is looking for a Backend Software Engineer , you will be one of their first hires and be instrumental in building the core systems that power their service, from secure data infrastructure to AI-integrated APIs. Youll join a motivated, dynamic and collaborative team working at the frontier of health and technology. What Youll … code Collaborate across disciplines to ship impactful features quickly Help shape how healthcare tech can be safe, fast, and deeply human What Were Looking For 5+ years of backend engineering experience Strong Python skills (and curiosity about other modern languages) Experience with SQL and database schema design Track record building secure systemsMFA, RBAC, encryption, privacy by design Familiarity with More ❯

C# Software Engineer/Developer (Windows Desktop Trading Systems) London to £140k Are you a seasoned Software Engineer with strong C# desktop development skills combined with banking/financial services experience? You could be progressing your career at a Hedge Fund with over $10 billion under management. As a C# Software Engineer you will work on critical … cloud computing You have excellent communication and stakeholder management skills You're degree educated in Computer Science or similar discipline What's in it for you: As a C# Software Engineer/Developer you will earn a competitive package: Salary to £140k + bonus Pension and Private Healthcare Hybrid working (x3 days in London office) Impactful role working on … cutting edge AI technology Excellent career growth opportunities Apply now to find out more about this C# Software Engineer/Developer (Windows Desktop Trading Systems) 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 More ❯

Backend Software Engineer/Developer (Python AWS AI) London/WFH to £110k Would you like to join a growing and profitable start-up that is viewed as a leading FinTech disruptor in a senior role that will allow you a great deal of influence and progression? As a Backend Software Engineer you will architect and build highly … performant and scalable solutions using SOLID design principles, collaborating with cross functional Agile project teams in 2 week Sprints, you'll be an advocate of best practice and ensure software is delivered to schedule. There's a host of new features and development work and you'll also help to drive the adoption of AI within the business, introducing … s a hybrid policy, with two days in the brand new London offices and flexibility to work from home three days a week. About you: You are an experienced Software Developer/Engineer with a strong knowledge of modern best practice You have strong Python backend development skills, ideally also C# coding skills You have a good knowledge of More ❯

organisation. Job Overview The client is seeking a highly skilled Senior Level Python Developer to join their dynamic team. In this role, you will design and develop high-quality software solutions and contribute to innovative fintech products. You will play a pivotal role in building cutting-edge applications that improve financial services for customers. This is an excellent opportunity … thrive in a fast-paced, agile environment and are passionate about driving technological innovation. Key Responsibilities Key responsibilities for this role include: * Developing, testing, and maintaining high-quality, scalable software solutions. * Collaborating with cross-functional teams to design, implement, and launch new features and products. * Troubleshooting and debugging applications to ensure optimal performance and security. * Participating in code reviews … coding standards and practices. * Staying up-to-date with the latest technologies and suggesting improvements for ongoing projects. Requirements Applicants should meet the following requirements: * Proven experience in Python software development (3+ years at Senior Level) * Strong development skills in Python and familiarity with frameworks/tools relevant to fintech. * Solid understanding of the software development life cycle More ❯

C++ Developer/Software Engineer (TDD FX Options) London to £100k Are you a bright, ambitious C++ Developer with an eagerness to learn and progress your career working on complex financial trading systems? You could be joining the Investment Management arm of a global bank. As a C++ Developer you will design and develop full stack systems for new … FX Derivatives products and connectivity to external vendors, collaborating closely with traders and quants to build the solutions they require. You'll work across the full software development lifecycle including assisting with architecture of new solutions, you'll be working with C++ 14/17 with a TDD environment but will also gain exposure to Python, TypeScript and React. … understanding of FX financial markets with experience in a finance environment You haves excellent communication and collaboration skills What's in it for you: As a C++ Developer/Software Engineer you will receive a competitive Salary to £100k Bonus Pension One day work from home per week Continuous training and career progression opportunities Apply now to find out More ❯

Software Engineer/Developer (Full Stack Java Angular SQL API) London/WFH to £90k Are you full stack technologist? You could be progressing your career in a hands-on, impactful, Software Engineer role, working on a "tech for good" product that is helping to drive efficiencies for the NHS, the core product is a highly complex real … time shift rota application, hosted on AWS and available via the web or mobile device (iOS/Android). As a Software Engineer you will play a crucial role in re-architecting and enhancing the scheduling platform to a Java and Angular codebase (from Ruby and TypeScript). You'll design and develop scalable backend Java services and REST … Angular You have experience with relational databases and SQL query writing You have a strong understanding of REST APIs and real-time systems You have a strong knowledge of software engineering best practices and Agile development methodologies You're collaborative and pragmatic with great communication skills What's in it for you: As a Software Engineer/ More ❯

C++ Dev/Engineer London – hybrid 6 month contract Inside ir35. We are looking for an experienced Senior C++ Software Engineer/dev to help grow and enhance our PTP software platform. The candidate will work on strategic enhancements to the platform as well as on client implementation projects. The PTP Platform is a leading-edge, cloud-based … Securities Processing solution that provides trade lifecycle processing for a wide range of global financial institutions. About the team: As a Senior C++ Software Engineer, you’ll be part of our PTP Platform development group. The group is broken into smaller scrum teams that each hold responsibility for a key area of system functionality. You’ll become involved with … all phases of the development lifecycle and take ownership of key functional areas. What you will be doing: As a Senior C++ Software Engineer, you will be involved in: • Analysis of user requirements and translation into solution design • Estimating and breaking down tasks into manageable chunks • Implementation of new features and feature enhancements • Leading code reviews and enforcing best More ❯