96 software developer jobs found in London, greater london

Senior Java/React Full Stack Developer Location: London or Newcastle, UK (Hybrid - ~1 day per week in office / onsite) Contract: Contract - 6 months with view to extend Day Rate: £550 - £600 per day - Outside IR35 About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy. We work with organisations to improve software quality, reliability, and delivery outcomes through modern engineering and testing practices. Our teams focus on reducing risk in complex systems by improving automated testing, architectural clarity, and developer feedback loops.   About the Role We are seeking a consultative Senior Software Developer in Test with hands-on experience in React and Java to join Appvia as a hands-on testing and quality engineering consultant. This role is centred on modernising automated test strategies for Java/React-based applications, moving away from brittle, heavyweight end-to-end testing towards more...

GreySpark Partners is a specialist consultancy that helps capital markets firms transform how they operate, compete and innovate. We combine deep industry expertise with hands-on delivery to solve complex business, technology and regulatory challenges for investment banks, asset and wealth managers, fintechs and other financial institutions, with a strong focus on front-office trading technology and solutions. GreySpark is expanding its Technology talent pool and is seeking experienced Software Developers interested in working on complex, business-critical trading platforms within global investment banks and financial markets clients. This is an opportunity to contribute to the design and optimisation of real-time systems across pricing, risk, connectivity and execution workflows.     What You’ll Do As a GreySpark technology consultant, you will work closely with front-office and technology teams to deliver both review and delivery projects....

GreySpark Partners is a specialist consultancy that helps capital markets firms transform how they operate, compete and innovate. We combine deep industry expertise with hands-on delivery to solve complex business, technology and regulatory challenges for investment banks, asset and wealth managers, fintechs and other financial institutions, with a strong focus on front-office trading technology and solutions. GreySpark is expanding its Technology talent pool and is seeking experienced Software Developers interested in working on complex, business-critical trading platforms within global investment banks and financial markets clients. This is an opportunity to contribute to the design and optimisation of real-time systems across pricing, risk, connectivity and execution workflows. What You'll Do As a GreySpark technology consultant, you will work closely with front-office and technology teams to deliver both review and delivery projects. Responsibilities include: •...

GreySpark Partners is a specialist consultancy that helps capital markets firms transform how they operate, compete and innovate. We combine deep industry expertise with hands-on delivery to solve complex business, technology and regulatory challenges for investment banks, asset and wealth managers, fintechs and other financial institutions, with a strong focus on front-office trading technology and solutions. GreySpark is expanding its Technology talent pool and is seeking experienced Software Developers interested in working on complex, business-critical trading platforms within global investment banks and financial markets clients. This is an opportunity to contribute to the design and optimisation of real-time systems across pricing, risk, connectivity and execution workflows. What You'll Do As a GreySpark technology consultant, you will work closely with front-office and technology teams to deliver both review and delivery projects. Responsibilities include: •...

Job Description: 6+ years exp with Power Platform development Extensive experience in building workflows using Power automate and experience in using Power Apps Power BI experience is a nice to have Exp in automating process workflows and demonstrating the benefits of automating the workflows Exp in design, development, integration, Coding, Unit & Integration testing, deployment Exp in integrating Power Platform solutions with other systems Ability to work autonomously and in collaboration with business and IT stakeholders Experience working in an Agile environment Job Type: Freelance Pay: £300.00-£330.00 per day

Role Overview We are looking for a Senior Delphi Developer with deep expertise in Delphi 10.4 or later , strong understanding of software development life cycle (SDLC) , and hands-on experience in Oracle PL/SQL and RDBMS . The ideal candidate will be responsible for designing, developing, and maintaining enterprise-grade business applications, while also contributing to build automation and deployment processes using tools such as TeamCity and Octopus . This role requires excellent debugging skills, experience in developing custom controls, and collaboration with cross-functional teams to deliver robust and scalable software solutions. Experience: 10–14 years Key Responsibilities Design, develop, and maintain business applications using Delphi 10.4 or newer versions . Participate in the full Software Development Life Cycle (SDLC) — from requirements gathering to deployment and support. Configure and maintain automated build and deployment pipelines using...

Essential Skills & Experience: · Proven experience in UI/UX design for self-service platforms or similar digital products. · Proficiency in design tools such as Figma, Adobe XD, or Sketch. Strong knowledge of responsive design principles and web/mobile best practices. · Experience conducting user research and usability testing to drive design improvements. · Familiarity with accessibility standards (e.g., WCAG 2.1) and inclusive design principles. · Ability to work in an Agile environment, delivering iterative design solutions in collaboration with cross-functional teams. · Excellent communication skills to articulate design decisions and gather stakeholder feedback effectively Familiarity with GDS Service Standards and the Digital Service Assessment process Work with clients to design and develop digital services that are user-friendly, accessible, and compliant with GDS standards. Lead the development of service blueprints, user journeys, and wireframes. Advise...

About the Role The Dynamics 365 Developer reports into the Complex Case Management Team DevOps Lead. The role will have a close working connection with IT teams, Partners/3rd parties, Operational Teams and Service Management. Responsibilities · Agile Practices: Integrate and support with agile based product development ceremonies such as sprint planning, standups, retrospectives and backlog grooming. · Solution Design and Development: Lead the design and development of custom solutions within Dynamics 365 and Power Platform, ensuring they meet business needs and align with best practices. · System Integration: Integrate Dynamics 365 with other systems and applications, ensuring seamless data flow and process automation. · Customization and Configuration: Customise and configure Dynamics 365 and Power Platform applications to meet specific business requirements. · Technical Leadership: Provide technical guidance and mentorship to junior developers and other team...

Job Description: 6+ years exp with Power Platform development Extensive experience in building workflows using Power automate and experience in using Power Apps Power BI experience is a nice to have Exp in automating process workflows and demonstrating the benefits of automating the workflows Exp in design, development, integration, Coding, Unit & Integration testing, deployment Exp in integrating Power Platform solutions with other systems Ability to work autonomously and in collaboration with business and IT stakeholders Experience working in an Agile environment Job Type: Freelance Pay: £300.00-£330.00 per day

Role Overview We are looking for a Senior Delphi Developer with deep expertise in Delphi 10.4 or later , strong understanding of software development life cycle (SDLC) , and hands-on experience in Oracle PL/SQL and RDBMS . The ideal candidate will be responsible for designing, developing, and maintaining enterprise-grade business applications, while also contributing to build automation and deployment processes using tools such as TeamCity and Octopus . This role requires excellent debugging skills, experience in developing custom controls, and collaboration with cross-functional teams to deliver robust and scalable software solutions. Experience: 10–14 years Key Responsibilities Design, develop, and maintain business applications using Delphi 10.4 or newer versions . Participate in the full Software Development Life Cycle (SDLC) — from requirements gathering to deployment and support. Configure and maintain automated build and deployment pipelines using...

About the Role The Dynamics 365 Developer reports into the Complex Case Management Team DevOps Lead. The role will have a close working connection with IT teams, Partners/3rd parties, Operational Teams and Service Management. Responsibilities · Agile Practices: Integrate and support with agile based product development ceremonies such as sprint planning, standups, retrospectives and backlog grooming. · Solution Design and Development: Lead the design and development of custom solutions within Dynamics 365 and Power Platform, ensuring they meet business needs and align with best practices. · System Integration: Integrate Dynamics 365 with other systems and applications, ensuring seamless data flow and process automation. · Customization and Configuration: Customise and configure Dynamics 365 and Power Platform applications to meet specific business requirements. · Technical Leadership: Provide technical guidance and mentorship to junior developers and other team...

Essential Skills & Experience: · Proven experience in UI/UX design for self-service platforms or similar digital products. · Proficiency in design tools such as Figma, Adobe XD, or Sketch. Strong knowledge of responsive design principles and web/mobile best practices. · Experience conducting user research and usability testing to drive design improvements. · Familiarity with accessibility standards (e.g., WCAG 2.1) and inclusive design principles. · Ability to work in an Agile environment, delivering iterative design solutions in collaboration with cross-functional teams. · Excellent communication skills to articulate design decisions and gather stakeholder feedback effectively Familiarity with GDS Service Standards and the Digital Service Assessment process Work with clients to design and develop digital services that are user-friendly, accessible, and compliant with GDS standards. Lead the development of service blueprints, user journeys, and wireframes. Advise...

Job Description: 6+ years exp with Power Platform development Extensive experience in building workflows using Power automate and experience in using Power Apps Power BI experience is a nice to have Exp in automating process workflows and demonstrating the benefits of automating the workflows Exp in design, development, integration, Coding, Unit & Integration testing, deployment Exp in integrating Power Platform solutions with other systems Ability to work autonomously and in collaboration with business and IT stakeholders Experience working in an Agile environment Job Type: Freelance Pay: £300.00-£330.00 per day

Role Overview We are looking for a Senior Delphi Developer with deep expertise in Delphi 10.4 or later , strong understanding of software development life cycle (SDLC) , and hands-on experience in Oracle PL/SQL and RDBMS . The ideal candidate will be responsible for designing, developing, and maintaining enterprise-grade business applications, while also contributing to build automation and deployment processes using tools such as TeamCity and Octopus . This role requires excellent debugging skills, experience in developing custom controls, and collaboration with cross-functional teams to deliver robust and scalable software solutions. Experience: 10–14 years Key Responsibilities Design, develop, and maintain business applications using Delphi 10.4 or newer versions . Participate in the full Software Development Life Cycle (SDLC) — from requirements gathering to deployment and support. Configure and maintain automated build and deployment pipelines using...

About the Role The Dynamics 365 Developer reports into the Complex Case Management Team DevOps Lead. The role will have a close working connection with IT teams, Partners/3rd parties, Operational Teams and Service Management. Responsibilities · Agile Practices: Integrate and support with agile based product development ceremonies such as sprint planning, standups, retrospectives and backlog grooming. · Solution Design and Development: Lead the design and development of custom solutions within Dynamics 365 and Power Platform, ensuring they meet business needs and align with best practices. · System Integration: Integrate Dynamics 365 with other systems and applications, ensuring seamless data flow and process automation. · Customization and Configuration: Customise and configure Dynamics 365 and Power Platform applications to meet specific business requirements. · Technical Leadership: Provide technical guidance and mentorship to junior developers and other team...

Essential Skills & Experience: · Proven experience in UI/UX design for self-service platforms or similar digital products. · Proficiency in design tools such as Figma, Adobe XD, or Sketch. Strong knowledge of responsive design principles and web/mobile best practices. · Experience conducting user research and usability testing to drive design improvements. · Familiarity with accessibility standards (e.g., WCAG 2.1) and inclusive design principles. · Ability to work in an Agile environment, delivering iterative design solutions in collaboration with cross-functional teams. · Excellent communication skills to articulate design decisions and gather stakeholder feedback effectively Familiarity with GDS Service Standards and the Digital Service Assessment process Work with clients to design and develop digital services that are user-friendly, accessible, and compliant with GDS standards. Lead the development of service blueprints, user journeys, and wireframes. Advise...

Job Description: 6+ years exp with Power Platform development Extensive experience in building workflows using Power automate and experience in using Power Apps Power BI experience is a nice to have Exp in automating process workflows and demonstrating the benefits of automating the workflows Exp in design, development, integration, Coding, Unit & Integration testing, deployment Exp in integrating Power Platform solutions with other systems Ability to work autonomously and in collaboration with business and IT stakeholders Experience working in an Agile environment Job Type: Freelance Pay: £300.00-£330.00 per day

Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for a proficient Data Engineer to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development. Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some team members fit this work alongside a...

20 hours ago Senior Software Engineering Contractor About the job   Aspect Capital is an award-winning systematic hedge fund based in London, UK that manages over $8 billon of client assets, where technology plays a critical role in the success of the business.   We are looking for a Senior Software Engineering Contractor to join our Software Development team to work on our Software Development platform for 12 months.   Job requirements: 5+ years of enterprise Java development experience Experience with managing technical projects e.g. planning timelines, milestones and deliverables Strong enterprise Java (with Spring) experience Working proficiency of Python and Javascript Experience with Maven, Docker and CI pipelines   Job responsibilities: Aspect’s Software Development Team are a team of 12 who develop and support the main trading software for Aspect. This ranges from front office...

Aspect Capital is an award-winning systematic hedge fund based in London, UK that manages over $8 billon of client assets, where technology plays a critical role in the success of the business.   We are looking for a Senior Software Engineering Contractor to join our Software Development team to work on our Software Development platform for 12 months.   Job requirements: 5+ years of enterprise Java development experience Experience with managing technical projects e.g. planning timelines, milestones and deliverables Strong enterprise Java (with Spring) experience Working proficiency of Python and Javascript Experience with Maven, Docker and CI pipelines   Job responsibilities: Aspect’s Software Development Team are a team of 12 who develop and support the main trading software for Aspect. This ranges from front office trading, to back and middle office. This core project entails working on Aspect’s Software...