76 software developer jobs found in London

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: •...

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...

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

About Us At MCS Rental Software , we’re passionate about helping rental businesses grow. It’s a family-owned and managed company. With over 40 years of expertise, we provide cutting-edge rental management software, cloud solutions, and responsive technical support to companies around the world. Join our mission to empower the rental industry through smart technology and outstanding service. The Opportunity We are looking for an experienced Report Writer / Developer (VB & SQL) to join our growing technical team on a long-term contract basis. In this role, you will be responsible for developing, maintaining, and optimising reports within our in-house application (full training provided). You will work closely with our internal technical and product teams to ensure reports are accurate, efficient, and aligned with business requirements. This is an excellent opportunity for someone seeking stable, ongoing contract work with the potential to...

About Us At MCS Rental Software , we’re passionate about helping rental businesses grow. It’s a family-owned and managed company. With over 40 years of expertise, we provide cutting-edge rental management software, cloud solutions, and responsive technical support to companies around the world. Join our mission to empower the rental industry through smart technology and outstanding service. The Opportunity We are looking for an experienced Report Writer / Developer (VB & SQL) to join our growing technical team on a long-term contract basis. In this role, you will be responsible for developing, maintaining, and optimising reports within our in-house application (full training provided). You will work closely with our internal technical and product teams to ensure reports are accurate, efficient, and aligned with business requirements. This is an excellent opportunity for someone seeking stable, ongoing contract work with the potential to...

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...

Aspect Capital is an award-winning systematic hedge fund based in London, UK. We manage over $8 billon of client assets, with technology playing a critical role in the success of our 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...

Crosstide is a London-based digital transformation consultancy with a proven track record of delivering high-value, complex software solutions for enterprise businesses. Engineering quality and speed to value are at the heart of everything we do, reflecting our founding values of quality, simplicity, and collaboration.   We are looking for an experienced Senior Developer to join our engineering team. This is a hands-on engineering role focused on designing, building, and maintaining software across a mixed legacy and modern .NET estate.   Key Responsibilities: Design, develop, and maintain features. Work with a large, multi-repository codebase, including legacy and maintenance-mode systems. Contribute to improving code quality, performance, and reliability. Support incremental modernisation and refactoring efforts where appropriate. Participate in code reviews and contribute to shared engineering standards. Help diagnose and...

We are urgently looking for Java Developer in London Role: Java Developer (Sprint Boot and Microservices) No. of Years Experience: 7+ Years Job Type: Contract Rate: 300 to 350 GBP Inside IR35 (Based on profile) Location: London (2-3 Day in Office) Right to work: Candidate should be inside Ireland with full right to work. Seeking an experienced Java Developer (5+ years) Strong expertise in Spring Boot, Microservices architecture, and REST API development. Hands-on experience with Java 8+/11, JPA/Hibernate, SQL/NoSQL databases, and cloud platforms (AWS/Azure). Knowledge of Docker, Kubernetes, and CI/CD pipelines is preferred. Job Types: Full-time, Fixed term contract Contract length: 6 months Pay: £300.00-£350.00 per day Work Location: Hybrid remote in London E6 3DW

We are seeking a highly experienced Lead Java Developer to join our team on a contract basis (Inside IR35). Required experience: Technical Expertise : Expert-level proficiency in Java and Kotlin development, demonstrated within large-scale, production environments. Team Leadership : Strong team lead background with significant experience coaching, mentoring, and leading senior and junior developers. Architecture & Design: Proven track record of designing, implementing, and overhauling complex software architectures from inception to delivery, advising on long-term technology roadmaps. Testing & Quality: Deep understanding and practical experience with modern testing methodologies, including TDD and Behaviour-Driven Development (BDD), and experience with frameworks such as Cucumber. Version Control: Hands-on experience with GitLab or similar modern distributed version control and CI/CD tools. About GlobalLogic GlobalLogic, a Hitachi Group Company,...

WE ARE: At Adaptive, we are a financial consulting firm that partners with capital, commodity, and digital market participants. We value differentiation through technology. Our experienced teams design and deliver complex front-office technology solutions using our proven accelerators to create long-term competitive advantage. Our clients include the world's leading investment banks, investment managers, fintech and capital market service providers. With a global reach with offices in London, New York, Barcelona, Manila and Montreal, we have a proven track record of delivering powerful, elegant and intuitive trading technology solutions. We are now looking for Java Developer services on an exciting project! THE SERVICES REQUIRED: A JVM lover who really enjoys working with the latest technologies and design patterns Eager to solve complex technical challenges, especially in cloud-based environments and event driven architecture patterns Experienced...