176 to 200 of 704 API Development Jobs in the UK excluding London

seeking a Senior Java Developer/Lead who could drive technology transformation in the team. This role involves taking ownership of key projects and components throughout the entire Software Development Life Cycle (SDLC). A primary focus will be on design, development & maintenance of components under Price Master Central systems which would require expertise in Java, Spring, SQL … API development, Kafka, Kubernetes, and Cloud technologies. You will guide & mentor team of engineers, providing technical expertise and direction, and ensure adherence to best practices. A strong understanding of system and enterprise architecture is essential. You will collaborate with global and diverse teams, including Business Analysts, Project Management, Production Support, and Infrastructure. Price Master Central is a global … management application - responsible for sourcing Securities & Pricing data from market vendors and internal Citi sources and providing it to downstream clients after applying client specific rules. Responsibilities : Deliver assigned development projects within agreed schedule, quality and scope expectations Participate in all stages of the SDLC within an agile Scrum environment Form partnership with technology vendors and gain deep understanding More ❯

contribute to the evolution of our core B2B ordering platform and play a key role in the transition to a next-generation digital ordering experience. Reporting to the Software Development Manager you will help us improve our front-end applications to help drive productivity and efficiency within our business, and most importantly delight our customers. As a highly motivated … on Azure. You will be responsible for contributing to sprint velocity, stand up, estimations, and retrospectives. At a wider level, you will be involved in all stages of software development from architecture design, performance evaluation, to build and deployment pipeline creation, and application monitoring. About Our Stack To give you a flavour of some of the things you can … expect to work with, our core stack is outlined below. However, we are constantly learning and, where appropriate, incorporating the latest technologies in our projects. We use modern software development practices including CI/CD and feature flagging, and are always looking to improve delivery of our software through automation, and collaboration with other areas of IT. Backend: C# More ❯

Studio product, an advanced Digital Asset Management and photo automation solution, and have the opportunity to work on both frontend and backend. You will be involved in the entire development lifecycle, from design and analysis to development and testing of new features. The ideal candidate will be eager to join a fast-paced, dynamic environment where every employee … for an experienced Software Engineer who is now looking to embark on a new challenge with an amazing team of engineers. Ideally you are someone who has: Strong frontend development experience building beautiful UIs using React Backend API development experience in Node.js and be comfortable with modern JavaScript/TypeScript Experience with SQL and NoSQL databases Experience More ❯

rebuild their software environment. This role is central to developing web-based applications and systems that support strategic business goals. The ideal candidate is highly skilled in Azure cloud development, experienced in Agile and DevOps environments, and capable of leading development teams. Duties and Responsibilities: Software development, evaluating and improving codebases. Implement long-term development strategies … with incremental improvements. Lead and mentor software engineers to enhance performance. Refine development processes, tools, and standards for efficiency and quality. Manage competing priorities and make decisions under pressure. Collaborate with technical and non-technical stakeholders. Stay updated on industry standards, including version control, code reviews, testing, and CI/CD. Apply Agile methodologies in development practices. Required … Skills: Extensive software development experience with a proven record of improving codebases. Skilled in C#, .NET, Azure, and SQL. Strong background in API development and provider application implementation. Capable of shaping long-term strategies while managing incremental improvements. Proven leader with experience mentoring teams and driving performance. Experienced in optimising development tools, processes, and standards. Strong More ❯

Microsoft 365, including SharePoint, Teams, Power Apps, Power Automate, and related applications. Design and manage integrations between Microsoft 365 applications and third party systems using REST APIs, Microsoft Graph API, and custom connectors. Create and manage custom connectors within Power Automate and Power Apps to facilitate efficient data flow across multiple platforms. Collaborate with stakeholders and the Business Excellence … a Microsoft 365 Developer or a similar role focused on integrations. In depth knowledge of Microsoft 365 applications (SharePoint, Teams, Power Apps, Power Automate) and services. Extensive experience with API integrations, particularly Microsoft Graph API, REST APIs, and third party APIs. Strong proficiency in Power Platform development, including Power Apps and Power Automate custom solutions. Knowledge of … Azure services (Logic Apps, Functions, and API Management) for advanced integration capabilities. Familiarity with JSON, XML, OAuth, and other web technologies relevant to API development. Experience of JavaScript, C#, or PowerShell for custom solution development within the Microsoft ecosystem. Strong problem solving skills and a proactive approach to troubleshooting integration issues. Excellent communication skills for collaborating with More ❯

and secure applications. You should have at least two years of experience working with applications and APIs, along with a good understanding of both front-end and back-end development, ensuring seamless integration with existing systems and compliance with industry standards. Skills and experience Proficiency in application development: Working knowledge of MS Power Platform; knowledge of legal applications … such as Visualfiles, Intapp, etc.) is an advantage. Database management: Strong knowledge of SQL and Python. API development and integrations: Expertise in creating and consuming RESTful APIs, experience with SOAP services, and familiarity with Azure technologies (Azure Service Bus, Logic Apps, Function Apps, Power Automate) or Intapp technology (Integration Builder) is an advantage. Cloud technologies: Familiarity with Azure … and collaboration: Proficient with Git, GitHub, Azure DevOps, or similar tools for source control and team collaboration. Agile methodologies: Experience working in Agile/Scrum environments, focusing on iterative development and continuous improvement. Security best practices: Knowledge of secure coding practices and compliance with data protection regulations (GDPR, ISO 27001, CE+). Problem-solving and analytical skills: Ability to More ❯

including offshore teams and contractors. Oversee software architecture, ensuring seamless integration with various platforms. Gather and analyse requirements, refining features and technical solutions. Lead the estimation process and ensure development work is accurately scoped. Debug existing code, maintain system performance, and drive best coding practices. Manage defects and oversee their resolution across the development team. Experience: 4+ years … experience in software engineering, with a strong focus on Java development. Experience leading and/or mentoring technical teams within fast-paced, agile environments. Expertise in microservices architecture, REST API development, and security. Strong DevOps knowledge, particularly with Ansible or Jenkins pipelines. Proficiency in object-oriented design, relational databases, and MongoDB. Experience with version control (GIT preferred) and More ❯

IR35 The Role: Join a transformative retail journey by leveraging cutting-edge technologies like React Native and Redux to build impactful mobile solutions. Collaborate with top talent across mobile development, UX/UI design, and product teams to create seamless user experiences that enhance customer engagement. Thrive in a fast-paced environment that values creativity, experimentation, and continuous improvement … applying your advanced mobile development skills to drive innovation and business value at a leading retail company. Your responsibilities: Mobile App Development: Develop, optimize, and maintain React Native apps to deliver high-quality, high-performance, scalable mobile experiences. Monitoring & Troubleshooting: Monitor and troubleshoot production mobile applications to ensure performance, reliability, and responsiveness. Team Collaboration: Foster an inclusive team … environment, encouraging knowledge sharing and continuous learning. Stay Updated: Keep abreast of the latest trends and technologies in mobile development and recommend improvements. Code Optimization & Best Practices: Write and optimize JavaScript/TypeScript code, ensuring quality, maintainability, and scalability using best practices and design patterns. Cross-Platform Development: Develop applications for both iOS and Android platforms, ensuring consistent More ❯

Software Engineer Contract 12 months initially 2/3 days a week onsite in Wilmslow IR35 Status - TBC Rate - TBC The team you'll join are currently completing the development of the suite of micro-services (e.g. Tenancy Admin, Notifications) written in C# and built on the AWS architecture that will comprise our first Cloud Platform, due live later … Extensive knowledge and proven experience as a software developer, with exposure to elements of our back-end technology stack (C#, .Net) Good experience working with Amazon Web Services, Microservices, API development Knowledge and application of software engineering practices (e.g. Unit testing, TDD, CI/CD, SOLID, BDD etc.) and experience working as part of an agile delivery team. … Continuous delivery, with pipelines implemented in Kubernetes, Docker Experience implementing and maintaining Datadog Experience using GitHub and GitHub Actions Behaviour Driven Development (BDD), with Gherkin & SpecFlow Atlassian Jira, Confluence & JFrog Artifactory Ideally some software security best practices and implementation (e.g. OWASP, PKI, X509 Certificates, TLS) Software development for regulated environments (e.g. IVD/Medical devices). Not essential More ❯

Company and Role Overview Origo is a forward-thinking, growing Fintech company with a 30+ year history and a mission to connect the Financial Services industry. The Development team is responsible for building and maintaining Origo’s expanding number of services. The team is currently looking for an experienced C# developer (ideally with some experience of JavaScript and/… Develop high quality, fit-for-purpose code that meets the business, architectural and security requirements. Design and conduct unit test plans to ensure high quality levels. Create and maintain development artefacts and documentation for existing services. Create detailed technical and design specifications in response to new business concepts/outline specifications. Provide accurate estimates for all development activities … to assist the Technical Leads with estimating project costs/timescales. Assist in the delivery of all development activities to the budget, timescales and quality criteria of the relevant development project or maintenance release through the complete project life cycle (and during the post release warranty period). Ensure ongoing awareness of current and emerging technologies and suggest More ❯

designing, developing, and maintaining robust digital solutions to support The Flex operations and customer experiences. You will work on a variety of projects spanning front-end and back-end development, cloud deployment, and automation. This role requires strong problem-solving skills, adaptability, and a proactive approach to driving innovation and efficiency in our software systems. Key Responsibilities Full-Stack … Development: Design, develop, and maintain scalable web applications using Node.js and React. Deployment & Cloud Management: Deploy and manage applications on AWS Cloud, utilizing serverless architecture. API Development: Design, implement, and optimize RESTful APIs using FastAPI (Python optional) and other modern frameworks. Automation & Scripting: Build automation tools to streamline development processes. Problem-Solving & Debugging: Analyze complex problems … serverless applications and cloud infrastructure. Strong problem-solving skills and ability to quickly learn new technologies. Familiarity with FastAPI, Python, and scripting is a plus. Understanding of modern software development practices (CI/CD, testing, Git). Excellent communication and collaboration skills. Adaptability and a proactive, solution-oriented mindset. Why Join The Flex? Be part of an innovative and More ❯

in real-time. Our internal motto is “Be Wow,” and your backend architectures will form the invisible foundation that delivers truly seamless, high-performance robot experiences. Main Responsibilities Service & API Development Performance Monitoring & Optimization Balancing maintainable, modular code with the demands of real-time interaction needs. Designing systems that gracefully handle intermittent connectivity and partial failures in field … pipelines to accommodate growing robot fleets and richer telemetry streams. Ensuring backward-compatibility of APIs while iterating rapidly on new features. Qualifications, Knowledge, Key Skills and Experience Significant backend development experience in production systems (Python, Go, Java, or similar) Strong expertise in designing and implementing microservices and APIs (REST, GraphQL, gRPC) Experience with container orchestration (Docker, Kubernetes) and CI … plane integrations About Engineered Arts Engineered Arts is the leading manufacturer of full-size humanoid robots used for entertainment, education and communication. With 20 years of hardware and software development, our robots have been sold in over 30 countries worldwide with customers such as NASA, PwC, Meta and many more. Our Ameca robot is well known as ‘the face More ❯

team to integrate TypeScript and React into our target architecture. Over time, the focus of this role will shift from maintaining legacy PHP systems to contributing directly to the development and optimization of our modernized technology stack. This is an opportunity to join the UK's number one investment services company, looking after over £149.7bn billion in assets on … quality, security, performance and CI/CD processes. Responsible in helping to document solutions and write ADRs Demonstrate a willingness to learn and further technologies & techniques embraced by the development team. Cultivate strong working relationships both within working squad and in HL as a whole. Actively participating in working groups and communities of practice designed to support the development … Jest, Cypress, Backstop). Enjoys upskilling others in a team - you prioritise sharing knowledge Experience with CI/CD and Trunk Based Development. Understanding of Microservices & principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. Understanding of event driven architecture. Experience performing code reviews. Experience operating within Agile framework. Aware of website performance More ❯

team to integrate TypeScript and React into our target architecture. Over time, the focus of this role will shift from maintaining legacy PHP systems to contributing directly to the development and optimization of our modernized technology stack. This is an opportunity to join the UK's number one investment services company, looking after over £149.7bn billion in assets on … quality, security, performance and CI/CD processes. Responsible in helping to document solutions and write ADRs Demonstrate a willingness to learn and further technologies & techniques embraced by the development team. Cultivate strong working relationships both within working squad and in HL as a whole. Actively participating in working groups and communities of practice designed to support the development … Jest, Cypress, Backstop). Enjoys upskilling others in a team - you prioritise sharing knowledge Experience with CI/CD and Trunk Based Development. Understanding of Microservices & principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. Understanding of event driven architecture. Experience performing code reviews. Experience operating within Agile framework. Aware of website performance More ❯

team to integrate TypeScript and React into our target architecture. Over time, the focus of this role will shift from maintaining legacy PHP systems to contributing directly to the development and optimization of our modernized technology stack. This is an opportunity to join the UK's number one investment services company, looking after over £149.7bn billion in assets on … quality, security, performance and CI/CD processes. Responsible in helping to document solutions and write ADRs Demonstrate a willingness to learn and further technologies & techniques embraced by the development team. Cultivate strong working relationships both within working squad and in HL as a whole. Actively participating in working groups and communities of practice designed to support the development … Jest, Cypress, Backstop). Enjoys upskilling others in a team - you prioritise sharing knowledge Experience with CI/CD and Trunk Based Development. Understanding of Microservices & principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. Understanding of event driven architecture. Experience performing code reviews. Experience operating within Agile framework. Aware of website performance More ❯

team to integrate TypeScript and React into our target architecture. Over time, the focus of this role will shift from maintaining legacy PHP systems to contributing directly to the development and optimization of our modernized technology stack. This is an opportunity to join the UK's number one investment services company, looking after over £149.7bn billion in assets on … quality, security, performance and CI/CD processes. Responsible in helping to document solutions and write ADRs Demonstrate a willingness to learn and further technologies & techniques embraced by the development team. Cultivate strong working relationships both within working squad and in HL as a whole. Actively participating in working groups and communities of practice designed to support the development … Jest, Cypress, Backstop). Enjoys upskilling others in a team - you prioritise sharing knowledge Experience with CI/CD and Trunk Based Development. Understanding of Microservices & principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. Understanding of event driven architecture. Experience performing code reviews. Experience operating within Agile framework. Aware of website performance More ❯

team to integrate TypeScript and React into our target architecture. Over time, the focus of this role will shift from maintaining legacy PHP systems to contributing directly to the development and optimization of our modernized technology stack. This is an opportunity to join the UK's number one investment services company, looking after over £149.7bn billion in assets on … quality, security, performance and CI/CD processes. Responsible in helping to document solutions and write ADRs Demonstrate a willingness to learn and further technologies & techniques embraced by the development team. Cultivate strong working relationships both within working squad and in HL as a whole. Actively participating in working groups and communities of practice designed to support the development … Jest, Cypress, Backstop). Enjoys upskilling others in a team - you prioritise sharing knowledge Experience with CI/CD and Trunk Based Development. Understanding of Microservices & principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. Understanding of event driven architecture. Experience performing code reviews. Experience operating within Agile framework. Aware of website performance More ❯

team to integrate TypeScript and React into our target architecture. Over time, the focus of this role will shift from maintaining legacy PHP systems to contributing directly to the development and optimization of our modernized technology stack. This is an opportunity to join the UK's number one investment services company, looking after over £149.7bn billion in assets on … quality, security, performance and CI/CD processes. Responsible in helping to document solutions and write ADRs Demonstrate a willingness to learn and further technologies & techniques embraced by the development team. Cultivate strong working relationships both within working squad and in HL as a whole. Actively participating in working groups and communities of practice designed to support the development … Jest, Cypress, Backstop). Enjoys upskilling others in a team - you prioritise sharing knowledge Experience with CI/CD and Trunk Based Development. Understanding of Microservices & principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. Understanding of event driven architecture. Experience performing code reviews. Experience operating within Agile framework. Aware of website performance More ❯

come up with creative solutions resulting in ground-breaking impact for a wide network of clients. Our culture of evolution and empathy centres on long-term career growth and development opportunities in an environment that embraces your unique skills and experience. We offer: Regular and frequent promotion and progression opportunities to ensure you can drive and develop your career … tools, techniques, and products our clients demand today. You'll work with clients, co-creating solutions to major real-world challenges by translating system requirements into the design and development of customized systems in an agile environment. In your role you may be responsible for: Use IBM's Design Thinking to create products that provide a great user experience … to deliver high-quality solutions. Documentation: Create comprehensive technical documentation for APIs architecture and deployment processes. Required education None Preferred education Bachelor's Degree Required technical and professional expertise API Development: Design develop and maintain robust scalable APIs using modern frameworks and technologies. Azure Logic Apps: Configure and integrate Azure Logic Apps to enable seamless workflows and business More ❯

languages such as Python, Java or Go with a focus on building scalable, production-grade solutions. Experience with cloud platforms (AWS, GCP, or Azure). Hands-on knowledge of API development, automation, and Infrastructure as Code (IaC) tools (e.g., Terraform). Experience in containerisation and orchestration (e.g. Kubernetes). Familiarity with building secure systems, adhering to enterprise security More ❯

new functionality and frameworks Collaborating with Business Analysts, Project Leads and IT team to resolve issues and ensuring solutions are viable and consistent Work with outside data sources and API ‘s Troubleshooting technical issues and bug fixing Improving application performance, ensure the performance, quality, and responsiveness of applications Conducting regular reviews of systems and generating reports on efficiencies and … training sessions and workshops on system processes Requirements and Qualifications: BS/MS degree in Computer Science, Engineering or a related subject 1-3 years’ experience in web application development Experience with two or more programming language including but not limited to PHP, Asp.net, C++, C# , etc. Familiar with API design and development (e.g RESTful ) is a … plus Familiarity with rational database – MySql, MsSql Experience with third-party libraries and web application development platform is a plus Experience working with remote data via REST and JSON Experience in full development cycle of Web applications Familiar with Web Security ( Attacks and Protection ) is a plus Familiar with jQuery libraries and front-end (CSS) frameworks like Bootstrap More ❯

implement, and maintain integrations between Cezanne HR and various external platforms, with a focus on AWS cloud infrastructure and .NET development. What you'll do Design and develop robust API integrations between Cezanne HR and third-party platforms Create and maintain AWS cloud infrastructure using infrastructure as code principles Architect and implement scalable integration solutions using .NET Core/… and provide technical leadership Contribute to documentation and knowledge sharing across the organisation Skills and experience valued in the role 5+ years of experience in technical integration and software development Strong expertise in AWS services (Lambda, API Gateway, S3, DynamoDB, SQS, SNS) Experience with API development and integration (REST, SOAP, GraphQL) Experience with infrastructure as code … problem-solving and analytical abilities Strong communication skills and ability to explain complex technical concepts Nice to have Knowledge of messaging systems and event-driven architectures Proficiency in .NET development (C#) Experience with serverless application development Experience with monitoring and observability tools Perks of working with us 28 days annual leave + bank holidays A day off for More ❯

Microsoft technologies. The role is offering a base of £70,000 + benefits and its hybrid working. As a senior technical lead, you’ll be responsible for full-stack development using .NET Core, Power Platform (Power Apps, Power Automate, Power BI), Azure Functions, and modern front-end frameworks like React or Angular. You’ll mentor developers, collaborate with cross … deployment. What You’ll Do Develop modern applications and APIs with C#/.NET Core and Azure Build responsive UIs using Fluent UI, React, or Angular Lead Power Platform development and system integrations Drive DevOps best practices with CI/CD pipelines, PowerShell scripting, and Azure DevOps Guide and mentor a distributed team of developers To be considered for … this role, you will need: Expertise in SQL Server and API development Desirable: Familiarity with Azure Logic Apps, GitHub Actions, and cloud security best practices If you are a Lead Full Stack Microsoft Developer with the required skills, please respond in the first instance with an up-to-date version of your CV for review. #J-18808-Ljbffr More ❯

enable Magnify’s post-sales orchestration platform. This is a remarkable opportunity for someone with back-end skills and cloud expertise to make a significant difference in early product development at our company. Magnify needs problem solvers who like to automate and optimize, enjoy simplifying complexity and know how to experiment. Magnify will depend on the person in this … Bachelors in Computer Science or related field. * 7+ years of experience working as a software engineer building applications in a high growth, startup environment. * Strong proficiency in web application development, including data modelling across relational and non-relational data stores, API development, asynchronous workflow orchestration, and development of web-based UIs (e.g. React). * Advanced proficiency More ❯

designing, developing, and maintaining robust digital solutions to support The Flex operations and customer experiences. You will work on a variety of projects spanning front-end and back-end development, cloud deployment, and automation. This role requires strong problem-solving skills, adaptability, and a proactive approach to driving innovation and efficiency in our software systems. Key Responsibilities Full-Stack … Development: Design, develop, and maintain scalable web applications using Node.js and React. Deployment & Cloud Management: Deploy and manage applications on AWS Cloud, utilizing serverless architecture. API Development: Design, implement, and optimize RESTful APIs using FastAPI (Python optional) and other modern frameworks. Automation & Scripting: Build automation tools to streamline development processes. Problem-Solving & Debugging: Analyze complex problems … serverless applications and cloud infrastructure. Strong problem-solving skills and ability to quickly learn new technologies. Familiarity with FastAPI, Python, and scripting is a plus. Understanding of modern software development practices (CI/CD, testing, Git). Excellent communication and collaboration skills. Adaptability and a proactive, solution-oriented mindset. Why Join The Flex? Be part of an innovative and More ❯