1 to 25 of 27 Software Developer Jobs in the City of London

Senior Full Stack Software Developer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings 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 Design, develop, and maintain advanced applications. Collaborate with cross-functional teams to define, design, and ship new features. Guiding and develop the skills of junior engineers. Optimize … Troubleshoot and debug to optimize performance. Provide code reviews, feedback, and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols Senior Full Stack Software Developer - Experience Required Proven experience as a Senior Full Stack Developer or similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for More ❯

Senior Full Stack Software Developer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings 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 Design, develop, and maintain advanced applications. Collaborate with cross-functional teams to define, design, and ship new features. Guiding and develop the skills of junior engineers. Optimize … Troubleshoot and debug to optimize performance. Provide code reviews, feedback, and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols Senior Full Stack Software Developer - Experience Required Proven experience as a Senior Full Stack Developer or similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for More ❯

Senior Software Developer | £85,000 | London | Financial Services Overview: A leading financial services organisation is seeking a Senior Software Developer to drive the design, development, and delivery of critical technology solutions across its operations. This high-impact role sits at the heart of business transformation, focused on building scalable systems to support reporting, compliance, and operational … patterns, development standards, and quality controls Lead and mentor developers, managing performance and growth Contribute to technology strategy, promoting innovation and best practices Essential Skills & Experience: 8+ years in software development within financial services or other complex enterprise environments is a must have Skilled in C#, .NET Core, Angular (v17+), SQL Server, Azure, microservices, and Power BI Experience in … unit testing, test automation, and Agile delivery Knowledge of compliance, regulatory reporting, and enterprise operational processes Proven experience delivering complex software solutions Strong leadership and stakeholder management skills Bonus: Python, Azure Data Factory/Databricks, data analysis, and COTS platforms Package: £85,000 15% non-contributory pension Hybrid working (3 days per week) Performance-based bonus scheme Comprehensive benefits More ❯

AI Software Developer (Python, JavaScript, ML) London/Hybrid Day rate: 500 - 800 (inside IR35) Duration: 6 12 months Start: ASAP Hybrid: 3 days on site per week My client is looking for a Software Developer with AI, Python and JavaScript experience to join on a contract basis. As a Software Developer - AI, you … will focus on the development and delivery of Gen AI driven software solutions, working within a dynamic team to enhance our digital products. You will be responsible for writing clean, efficient, and maintainable code, primarily in Python and JavaScript, while contributing to the successful deployment of Gen AI technologies that directly impact the companys customer experience (CX) vision. You … will collaborate closely with other software engineers, product teams, and AI specialists to develop LLM AI-powered applications, ensuring their scalability, security, observability and performance. This role is hands-on, with a primary focus on coding, testing, and deploying AI solutions in a fast-paced, agile environment. Responsibilities: Code Development and Testing Write, test, and maintain clean, efficient code More ❯

AI Software Developer (Python, JavaScript, ML) – London/Hybrid Day rate: £500 - £800 (inside IR35) Duration: 6 – 12 months Start: ASAP Hybrid: 3 days on site per week My client is looking for a Software Developer with AI, Python and JavaScript experience to join on a contract basis. As a Software Developer - AI, you … will focus on the development and delivery of Gen AI driven software solutions, working within a dynamic team to enhance our digital products. You will be responsible for writing clean, efficient, and maintainable code, primarily in Python and JavaScript, while contributing to the successful deployment of Gen AI technologies that directly impact the company’s customer experience (CX) vision. … You will collaborate closely with other software engineers, product teams, and AI specialists to develop LLM AI-powered applications, ensuring their scalability, security, observability and performance. This role is hands-on, with a primary focus on coding, testing, and deploying AI solutions in a fast-paced, agile environment. Responsibilities: Code Development and Testing Write, test, and maintain clean, efficient More ❯

Lead Software Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Lead Software Developer (PYTHON/AWS/REACT). JOB PURPOSE Part of the extended Technology Leadership Team, the Lead Software Developer will design, implement, and maintain publishing software, systems, and customer - facing digital products. They will provide technical supervision and guidance across the team, establishing and maintaining the development processes and working practices. MAIN ACCOUNTABILITIES Lead the development and maintenance of software, in line with organisational objectives for a specific team. Promote the creation of high-quality code … of team members through mentoring and coaching. Work closely with Head of Engineering and act as a representative for engineering to your respective team. Work closely with other Lead Software Developers to ensure consistent ways of working and help limit duplication and waste. Contribute to, and work in accordance to the Engineering Team Charter and other organisational strategies (and More ❯

Lead Software Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Lead Software Developer (PYTHON/AWS/REACT). JOB PURPOSE Part of the extended Technology Leadership Team, the Lead Software Developer will design, implement, and maintain publishing software, systems, and customer - facing digital products. They will provide technical supervision and guidance across the team, establishing and maintaining the development processes and working practices. MAIN ACCOUNTABILITIES Lead the development and maintenance of software, in line with organisational objectives for a specific team. Promote the creation of high-quality code … of team members through mentoring and coaching. Work closely with Head of Engineering and act as a representative for engineering to your respective team. Work closely with other Lead Software Developers to ensure consistent ways of working and help limit duplication and waste. Contribute to, and work in accordance to the Engineering Team Charter and other organisational strategies (and More ❯

Senior Software Developer – Python/Ruby Location: London (2/3 days per week on-site) Rate: Up to £650/day (Inside IR35 – 12-month Contract) A major UK government department is seeking an experienced Senior Software Developer to play a key role in the redevelopment of a critical national open data platform. This is … You’ll help shape the platform’s technical direction while ensuring delivery excellence. Key responsibilities include: Designing and building resilient, cloud-native applications using modern frameworks and languages. Leading software architecture and setting engineering standards across the team. Collaborating with developers, designers, and policy teams to deliver user-focused services. Driving technology choices and product roadmaps in line with More ❯

Senior Software Developer – Python/Ruby Location: London (2/3 days per week on-site) Rate: Up to £650/day (Inside IR35 – 12-month Contract) A major UK government department is seeking an experienced Senior Software Developer to play a key role in the redevelopment of a critical national open data platform. This is … You’ll help shape the platform’s technical direction while ensuring delivery excellence. Key responsibilities include: Designing and building resilient, cloud-native applications using modern frameworks and languages. Leading software architecture and setting engineering standards across the team. Collaborating with developers, designers, and policy teams to deliver user-focused services. Driving technology choices and product roadmaps in line with More ❯

Senior Software Developers specialising in trading systems required for an excellent client based in London. The successful Software Developer will join a extremely talented development team and you will be exposed to creating and maintaining our client's own applications based around a C#/.NET/SQL Server/ASP.NET universe. Many projects are greenfield projects … on.You will be given the opportunity to work with the some of the latest technologies possible and will be expected to produce excellent code for our clients in house software applications and trading platform. Our client offers a very collaborative working environment with all of the development team coming from excellent educational backgrounds from across Europe. This role is More ❯

Senior Software Developers specialising in trading systems required for an excellent client based in London. The successful Software Developer will join a extremely talented development team and you will be exposed to creating and maintaining our client's own applications based around a C#/.NET/SQL Server/ASP.NET universe. Many projects are greenfield projects … on.You will be given the opportunity to work with the some of the latest technologies possible and will be expected to produce excellent code for our clients in house software applications and trading platform. Our client offers a very collaborative working environment with all of the development team coming from excellent educational backgrounds from across Europe. This role is More ❯

Senior Software Developers required for an excellent client who are in the trading industry and their office is based in the City of London. The successful Senior Software Developer will join a small but extremely talented development team. You will be exposed to creating and maintaining our client's own applications based around a C#/.NET … You will be given the opportunity to work with the some of the latest technologies possible and will be expected to produce excellent code for our clients in house software applications whilst having a lot of autonomy. Our client offers a very collaborative working environment with most of the development team coming from excellent educational backgrounds. The company operate More ❯

Up to c. £200k Comp Package | Hybrid Working - 4 Days in Office] Role Overview We’re supporting a world-leading quantitative trading firm in the search for an Experienced Software Developer/Engineer to join their OTC technology group in London. This team designs and develops high-performance trading platforms that span both OTC liquidity provision and on … such as Java (preferred), C++ or C# Familiarity with Linux APIs and comfort developing in a Linux-based environment Strong computer science fundamentals with several years’ experience in professional software development Experience applying modern testing approaches to ensure robustness and safety of critical systems Collaborative and pragmatic approach to code reviews, focusing on correctness and clarity Curiosity about financial More ❯

Up to c. £200k Comp Package | Hybrid Working - 4 Days in Office] Role Overview We’re supporting a world-leading quantitative trading firm in the search for an Experienced Software Developer/Engineer to join their OTC technology group in London. This team designs and develops high-performance trading platforms that span both OTC liquidity provision and on … such as Java (preferred), C++ or C# Familiarity with Linux APIs and comfort developing in a Linux-based environment Strong computer science fundamentals with several years’ experience in professional software development Experience applying modern testing approaches to ensure robustness and safety of critical systems Collaborative and pragmatic approach to code reviews, focusing on correctness and clarity Curiosity about financial More ❯

Lead Developer Remote - London (2-4 Times Per Month) Up to £65,000 + Benefits We’re working with a world-renowned organisation at the forefront of science and digital innovation who are looking for a Lead Developer to join a major national programme. This is a fantastic opportunity to take ownership of building and leading a team … delivering cutting-edge digital infrastructure that will transform how vital scientific data is accessed and shared across the UK and beyond. The role As Lead Developer, you’ll provide senior technical direction and hands-on expertise in designing and implementing scalable, secure infrastructure. You’ll be responsible for shaping architectural decisions, integrating cloud-based and bespoke solutions, and ensuring … and mobilise large-scale datasets. Collaborate with external suppliers, partners, and stakeholders to align delivery. What we’re looking for: At least 5 years of experience delivering full-stack software development (Python backend, JavaScript frontend). Strong background in backend infrastructure – SQL/NoSQL, event stores, cloud storage. Proven experience in architecting secure, scalable systems in AWS, Azure, or More ❯

Lead Developer Remote - London (2-4 Times Per Month) Up to £65,000 + Benefits We’re working with a world-renowned organisation at the forefront of science and digital innovation who are looking for a Lead Developer to join a major national programme. This is a fantastic opportunity to take ownership of building and leading a team … delivering cutting-edge digital infrastructure that will transform how vital scientific data is accessed and shared across the UK and beyond. The role As Lead Developer, you’ll provide senior technical direction and hands-on expertise in designing and implementing scalable, secure infrastructure. You’ll be responsible for shaping architectural decisions, integrating cloud-based and bespoke solutions, and ensuring … and mobilise large-scale datasets. Collaborate with external suppliers, partners, and stakeholders to align delivery. What we’re looking for: At least 5 years of experience delivering full-stack software development (Python backend, JavaScript frontend). Strong background in backend infrastructure – SQL/NoSQL, event stores, cloud storage. Proven experience in architecting secure, scalable systems in AWS, Azure, or More ❯

Full-Stack Developer Contract Fully Remote Outside of IR35 My Customer who are investing in their technology platform to enhance customer, supplier, and operational workflows is looking for an experienced Full-Stack Developer with strong Golang and React skills. The Full-Stack Developer will help deliver a series of new modules and integrations as part of their … Hosting/Infrastructure: AWS (microservices architecture) Other: REST APIs, CI/CD pipelines, version control (Git), Jira, agile delivery Relational databases: PostgreSQL, MySQL Key responsibilities of the Full-Stack Developer Outside of IR35 Develop and extend backend services using Golang , following microservices principles. Build and enhance responsive user interfaces using React and TailwindCSS . Contribute to key modules including … Customer Portal API Integration Rebate Management System Ensure seamless data integration between services via secure REST APIs. Deploy, test, and optimise services within the AWS environment. The Full-Stack Developer role in initially a 2-week contract role with potential extension. This role will be fully remote. Apply now to speak with VIQU IT in confidence about the Full More ❯

Exciting opportunity for a Senior .Net C# Software Engineer with a background in front office trading to join a global Commodities Trading Company. You will be working in a front office trading environment dealing directly with business users & stakeholders. The role involves development & support of the existing platform for managing market and fundamental data across capture, forecasting and visualisation More ❯

Exciting opportunity for a Senior .Net C# Software Engineer with a background in front office trading to join a global Commodities Trading Company. You will be working in a front office trading environment dealing directly with business users & stakeholders. The role involves development & support of the existing platform for managing market and fundamental data across capture, forecasting and visualisation More ❯

Position Summary BGC Tech Markets is seeking a highly skilled software development professional to join the Trading Systems development team. This individual will lead the design and implementation of trading gateways and interfaces to BGC's proprietary matching engine and contribute directly to the development of the matching engine itself. The role demands strong expertise in C++ Development within … a high-frequency trading (HFT) environment. Key Responsibilities Serve as lead developer responsible for system design and implementation Develop low-latency trading gateways and market data interfaces Enhance and maintain BGC’s proprietary matching engine infrastructure Collaborate with cross-functional teams to deliver robust and scalable trading solutions Skills and Experience Minimum 10 years of software development experience More ❯

Position Summary BGC Tech Markets is seeking a highly skilled software development professional to join the Trading Systems development team. This individual will lead the design and implementation of trading gateways and interfaces to BGC's proprietary matching engine and contribute directly to the development of the matching engine itself. The role demands strong expertise in C++ Development within … a high-frequency trading (HFT) environment. Key Responsibilities Serve as lead developer responsible for system design and implementation Develop low-latency trading gateways and market data interfaces Enhance and maintain BGC’s proprietary matching engine infrastructure Collaborate with cross-functional teams to deliver robust and scalable trading solutions Skills and Experience Minimum 10 years of software development experience More ❯

analysts, data engineers, commercial specialists, creative professionals, and thought leaders working together to help clients achieve their most important goals. The role... Reporting to the Product Director, the Fullstack Developer will be a key member of the Engineering team responsible for designing and implementing the customer-facing front end for Verdantix’s new software catalogue product as well … office during probationary period, and will decrease to 2 days upon successful completion. What you’ll be doing... Build and maintain customer-facing websites and applications for Verdantix’s software catalogue and AI-powered products. Translate UX designs into responsive, performant, and scalable front-end experiences. Host new web platforms handing user permissioning and authentication in a manner that … balancing between frontend development work and backend development work, depending on business needs. About you... Bachelor’s degree in Computer Science, Engineering, or related field. 4+ years of professional software development experience across the stack, with strong front end focus (React, Angular, or Vue). Proficiency in building modern web applications from scratch (not only visualization layers). Strong More ❯

analysts, data engineers, commercial specialists, creative professionals, and thought leaders working together to help clients achieve their most important goals. The role... Reporting to the Product Director, the Fullstack Developer will be a key member of the Engineering team responsible for designing and implementing the customer-facing front end for Verdantix’s new software catalogue product as well … office during probationary period, and will decrease to 2 days upon successful completion. What you’ll be doing... Build and maintain customer-facing websites and applications for Verdantix’s software catalogue and AI-powered products. Translate UX designs into responsive, performant, and scalable front-end experiences. Host new web platforms handing user permissioning and authentication in a manner that … balancing between frontend development work and backend development work, depending on business needs. About you... Bachelor’s degree in Computer Science, Engineering, or related field. 4+ years of professional software development experience across the stack, with strong front end focus (React, Angular, or Vue). Proficiency in building modern web applications from scratch (not only visualization layers). Strong More ❯

Graduate Software Engineer/Quantitative Developer/Quantitative Researcher 📍 Location: London (Hybrid) 💷 Compensation: Up to £170,000 + Bonus + Full Benefits 🏢 Client: Elite Global Fund 🚀 Kickstart Your Career in Technology & Quantitative Finance Just graduated and ready to launch your career at the intersection of technology, mathematics, and finance ? Join an elite global trading firm where innovation drives More ❯

Graduate Software Engineer/Quantitative Developer/Quantitative Researcher 📍 Location: London (Hybrid) 💷 Compensation: Up to £170,000 + Bonus + Full Benefits 🏢 Client: Elite Global Fund 🚀 Kickstart Your Career in Technology & Quantitative Finance Just graduated and ready to launch your career at the intersection of technology, mathematics, and finance ? Join an elite global trading firm where innovation drives More ❯