301 to 325 of 855 API Development Jobs in the UK

developing clean, well-tested, and maintainable code, collaborating with team members, and ensuring compliance with quality guidelines. Responsibilities include, managing data exchange, and adhering to SOLID Principles and agile development lifecycles. The role also involves addressing non-functional requirements, supporting releases, and staying proactive in adopting new technologies What experience you'll bring: To be successful in this role … at NTT DATA UK | NTT DATA what we'll offer you: We offer a range of tailored benefits that support your physical, emotional, and financial wellbeing. Our Learning and Development team ensure that there are continuous growth and development opportunities for our people. We also offer the opportunity to have flexible work options. You can find more information … developing clean, well-tested, and maintainable code, collaborating with team members, and ensuring compliance with quality guidelines. Responsibilities include, managing data exchange, and adhering to SOLID Principles and agile development lifecycles. The role also involves addressing non-functional requirements, supporting releases, and staying proactive in adopting new technologies What experience you'll bring: To be successful in this role More ❯

System Analyst Location: United Kingdom (Remote) Experience Required: 5+ Years Job Type: Full-Time Job Summary: We are seeking a seasoned Technical Analyst with a strong background in application development , system analysis , and digital transformation to join our team. The ideal candidate will serve as a key bridge between business stakeholders and development teams , helping to modernize and … optimize BAU processes currently running on legacy systems. This role requires hands-on technical expertise in API development , React , and strong proficiency in SQL (preferably including Oracle SQL). Key Responsibilities: Collaborate with business stakeholders to understand and document current BAU (Business-as-Usual) processes . Analyze and propose improvements to existing BAU workflows to drive efficiency and … deep understanding of application architecture and integration points. Work closely with third-party vendors to manage dependencies, issues, and timelines. Translate business requirements into technical solutions and collaborate with development teams to ensure successful delivery. Provide technical guidance during the design and development of applications. Develop and maintain RESTful APIs and contribute to front-end development using More ❯

with cross-functional teams to understand business requirements and translate them into technical solutions Design and architect scalable, resilient, and secure microservices-based applications on AWS cloud platform. Develop API strategies and integrations to enable seamless communication between different systems and services. Provide technical leadership and guidance throughout the software development lifecycle, from design to deployment. Skills Experience … with Microservice Architecture (Docker, Kubernetes, Helm, Spring Boot, Java, Python) Strong proficiency in AWS cloud services, including EC2, Lambda, S3, RDS, API Gateway, and IAM Experience working with Kafka for event-driven and streaming architectures Hands-on experience with API development, RESTful principles, and API management platforms Proven track record of delivering projects using agile methodologies … Scrum, Kanban, etc.) Nice to have Hands-on experience with AI and Machine Learning , including model development, deployment, and inference using Amazon SageMaker and Amazon Bedrock Benefits: Annual Bonus, 30 days holiday + bank holidays, Private Healthcare, Life Assurance + much more. Please feel free to reach me on scott@futuretalent.io More ❯

Job Title: Node.JS Developer Duration: long-term contract Location: Hybrid (London Based) Key Skills: Node.js, Microservices, Google Cloud Platform (GCP), Kubernetes, DevOps, API Gateway, Docker, Express.js, TypeScript, ES6+ Job Description: We’re looking for a highly skilled Node.js Developer to join our dynamic, cloud-native team. You will be responsible for designing, developing, and deploying scalable backend services using … candidate will have strong experience in advanced microservices architecture , modern JavaScript (ES6+) , and TypeScript , with a deep understanding of cloud-native application delivery. Must Have: Proven experience in Node.js development for scalable backend systems Deep understanding of Microservices Architecture, including: Advanced microservices patterns (e.g., service discovery, circuit breakers, sidecars) Validation and schema enforcement across microservices API versioning strategies … routing, middleware, and error-handling patterns Proficiency with TypeScript and modern ES6+ JavaScript features Hands-on experience with Docker and Kubernetes for container orchestration and service management Familiarity with API Gateway platforms (e.g., APIGee, Mulesoft, GCP Endpoints) Exposure to Google Cloud Platform (GCP) services (e.g., Cloud Functions, Pub/Sub, IAM) Experience with DevOps tools and CI/CD More ❯

Job Title: Node.JS Developer Duration: long-term contract Location: Hybrid (London Based) Key Skills: Node.js, Microservices, Google Cloud Platform (GCP), Kubernetes, DevOps, API Gateway, Docker, Express.js, TypeScript, ES6+ Job Description: We’re looking for a highly skilled Node.js Developer to join our dynamic, cloud-native team. You will be responsible for designing, developing, and deploying scalable backend services using … candidate will have strong experience in advanced microservices architecture , modern JavaScript (ES6+) , and TypeScript , with a deep understanding of cloud-native application delivery. Must Have: Proven experience in Node.js development for scalable backend systems Deep understanding of Microservices Architecture, including: Advanced microservices patterns (e.g., service discovery, circuit breakers, sidecars) Validation and schema enforcement across microservices API versioning strategies … routing, middleware, and error-handling patterns Proficiency with TypeScript and modern ES6+ JavaScript features Hands-on experience with Docker and Kubernetes for container orchestration and service management Familiarity with API Gateway platforms (e.g., APIGee, Mulesoft, GCP Endpoints) Exposure to Google Cloud Platform (GCP) services (e.g., Cloud Functions, Pub/Sub, IAM) Experience with DevOps tools and CI/CD More ❯

Python/FastAPI Backend Engineer Opportunity! ???? Location: Fully Remote Department: Software Development Salary: Up to £80,000 + Bens Are you ready to make a significant impact in the world of clinical research? This business is on the lookout for a talented Python/FastAPI Backend Engineer to join their innovative team. This is your chance to contribute to … within a dynamic cross-functional team comprising Frontend Developers, QA Engineers, and DevOps Engineers. Your mission? To design, implement, and maintain robust microservices that facilitate clinical research. Key Responsibilities: API Development: Design and implement REST APIs using Python (3.x) and FastAPI/Pydantic. Database Management: Develop relational schema designs, ORM, and database migration scripts (PostgreSQL). Dependency Management … We're Looking For: Technical Expertise: Extensive experience in designing and implementing REST APIs using Python (3.x) and FastAPI (Pydantic schema). Testing Proficiency: Skilled in writing unit and API tests. API Integration: Experience in developing clients for consuming external REST APIs. Security Knowledge: Understanding of API and data security standards. Cloud Savvy: Working knowledge of cloud More ❯

Python/FastAPI Backend Engineer Opportunity! Location: Fully Remote Department: Software Development Salary: Up to £80,000 + Bens Are you ready to make a significant impact in the world of clinical research? This business is on the lookout for a talented Python/FastAPI Backend Engineer to join their innovative team. This is your chance to contribute to … within a dynamic cross-functional team comprising Frontend Developers, QA Engineers, and DevOps Engineers. Your mission? To design, implement, and maintain robust microservices that facilitate clinical research. Key Responsibilities: API Development: Design and implement REST APIs using Python (3.x) and FastAPI/Pydantic. Database Management: Develop relational schema designs, ORM, and database migration scripts (PostgreSQL). Dependency Management … We're Looking For: Technical Expertise: Extensive experience in designing and implementing REST APIs using Python (3.x) and FastAPI (Pydantic schema). Testing Proficiency: Skilled in writing unit and API tests. API Integration: Experience in developing clients for consuming external REST APIs. Security Knowledge: Understanding of API and data security standards. Cloud Savvy: Working knowledge of cloud More ❯

About the Opportunity Our client is a leading Finance Company seeking a talented .NET Developer to join their web application development team. This is an exciting opportunity to work on both legacy system modernization and new developments as they migrate from .NET Framework 4.8 to .NET 8 MVC and expand their digital capabilities. The Role Design, develop, and maintain … to .NET 8 MVC Develop RESTful APIs and integrate with web services Work using Agile methodologies with project managers and internal teams Technical Requirements Essential Skills: 4+ years commercial development experience .NET Framework 4.8 MVC and/or .NET 8 MVC (we're migrating to .NET 8) Visual Studio (Apply online only) HTML5, CSS3, JavaScript/jQuery SQL Server … Apply online only) RESTful API development Source Control (Git/TFS) Strong understanding of MVC architecture patterns Highly Beneficial: Recent .NET 8 MVC experience (preferred for our modernization efforts) Blazor framework knowledge Azure cloud platform experience Mobile application development SSRS/Crystal Reports Experience with legacy system migration projects What We're Looking For 4+ years commercial More ❯

About the Opportunity Our client is a leading Finance Company seeking a talented .NET Developer to join their web application development team. This is an exciting opportunity to work on both legacy system modernization and new developments as they migrate from .NET Framework 4.8 to .NET 8 MVC and expand their digital capabilities. The Role Design, develop, and maintain … to .NET 8 MVC Develop RESTful APIs and integrate with web services Work using Agile methodologies with project managers and internal teams Technical Requirements Essential Skills: 4+ years commercial development experience .NET Framework 4.8 MVC and/or .NET 8 MVC (we're migrating to .NET 8) Visual Studio (Apply online only) HTML5, CSS3, JavaScript/jQuery SQL Server … Apply online only) RESTful API development Source Control (Git/TFS) Strong understanding of MVC architecture patterns Highly Beneficial: Recent .NET 8 MVC experience (preferred for our modernization efforts) Blazor framework knowledge Azure cloud platform experience Mobile application development SSRS/Crystal Reports Experience with legacy system migration projects What We're Looking For 4+ years commercial More ❯

Required Job Type: Full-Time Experience: 10+ years About the Role: We are seeking a highly skilled and versatile Senior Developer to join our team and contribute to the development and maintenance of our cutting-edge Azure Databricks platform for economic data. This platform is critical for our Monetary Analysis, Forecasting, and Modelling activities. The Senior Developer will be … responsible for both front-end and back-end development, with a focus on Python, including the challenging but rewarding task of reverse engineering an existing codebase to integrate new features and improvements. This role requires a strong understanding of software development principles, experience with various programming languages and frameworks, and a passion for building high-quality, scalable, and … maintainable software. Drive the development of MVPs, ensuring timely delivery and alignment with business goals. Key Responsibilities: Full-Stack Development: Contribute to both front-end and back-end development of applications and APIs interacting with the Azure Databricks platform. Develop user interfaces using modern front-end frameworks (e.g., React, Angular, Vue.js) and ensure a seamless user experience. More ❯

Required Job Type: Full-Time Experience: 10+ years About the Role: We are seeking a highly skilled and versatile Senior Developer to join our team and contribute to the development and maintenance of our cutting-edge Azure Databricks platform for economic data. This platform is critical for our Monetary Analysis, Forecasting, and Modelling activities. The Senior Developer will be … responsible for both front-end and back-end development, with a focus on Python, including the challenging but rewarding task of reverse engineering an existing codebase to integrate new features and improvements. This role requires a strong understanding of software development principles, experience with various programming languages and frameworks, and a passion for building high-quality, scalable, and … maintainable software. Drive the development of MVPs, ensuring timely delivery and alignment with business goals. Key Responsibilities: Full-Stack Development: Contribute to both front-end and back-end development of applications and APIs interacting with the Azure Databricks platform. Develop user interfaces using modern front-end frameworks (e.g., React, Angular, Vue.js) and ensure a seamless user experience. More ❯

Context Labs is seeking a Principal Backend Engineer to help drive forward our product initiatives with our Immutably Platform and analytics spaces. Working as an integral leader within the development team, the engineer will lead many aspects of developing our platform services, APIs, and related product capabilities; as well as provide thought leadership, upskilling of less senior engineers, and … taking part in defining strategic linkages across the company's products. This role will report to the VP, Engineering. In this role you will: Provide leadership on the API services engineering team as a technical authority. Develop and maintain APIs and services for use within the Immutably Platform. Collaborate with other development teams and the product owner to … define and estimate business requirements and then translate these into specific software tasks. Lead hands-on software development in various projects and (minimally JVM). Provide exemplary code, structure, design, etc. for the platform services team to use as guidelines. Document designs, architecture, code. Conduct code reviews. Lead technical talks on topics relating to microservice-based systems and processes. More ❯

About the Opportunity Our client is a leading Finance Company seeking a talented .NET Developer to join their web application development team. This is an exciting opportunity to work on both legacy system modernization and new developments as they migrate from .NET Framework 4.8 to .NET 8 MVC and expand their digital capabilities. The Role Design, develop, and maintain … to .NET 8 MVC Develop RESTful APIs and integrate with web services Work using Agile methodologies with project managers and internal teams Technical Requirements Essential Skills: 4+ years commercial development experience .NET Framework 4.8 MVC and/or .NET 8 MVC (we're migrating to .NET 8) Visual Studio 2015-2022 HTML5, CSS3, JavaScript/jQuery SQL Server … RESTful API development Source Control (Git/TFS) Strong understanding of MVC architecture patterns Highly Beneficial: Recent .NET 8 MVC experience (preferred for our modernization efforts) Blazor framework knowledge Azure cloud platform experience Mobile application development SSRS/Crystal Reports Experience with legacy system migration projects What We're Looking For 4+ years commercial development experience More ❯

Context Labs is seeking a Principal Backend Engineer to help drive forward our product initiatives with our Immutably Platform and analytics spaces. Working as an integral leader within the development team, the engineer will lead many aspects of developing our platform services, APIs, and related product capabilities; as well as provide thought leadership, upskilling of less senior engineers, and … taking part in defining strategic linkages across the company's products. This role will report to the SVP, Engineering. In this role you will: Provide leadership on the API services engineering team as a technical authority. Develop and maintain APIs and services for use within the Immutably Platform. Collaborate with other development teams and the product owner to … define and estimate business requirements and then translate these into specific software tasks. Lead hands-on software development in various projects and (minimally JVM). Provide exemplary code, structure, design, etc. for the platform services team to use as guidelines. Document designs, architecture, code. Conduct code reviews. Design and implement performant, scalable, and maintainable solutions. Collaborate as a member More ❯

focused approach. Overview: Were hiring on behalf of our client for a Product Engineer (backend C# .net core) to join their growing team. The role will focus on backend development for a platform that blends telephony, voice AI, and LLMs to create next-generation voice automation features. Youll play a key role in building core product functionality, from low … the future). Write performant SQL for PostgreSQL databases; help design schemas and queries. Build and manage WebSocket connections for real-time features. Build clean automation tests (unit, functional, API). Build minimal UI components using Blazor SSR (checkboxes, graphs ..etc). Assist with deployment using Docker (containerisation) and AWS (EC2, RDS). Integrate with telephony and AI services … experience with C# (.NET Core) in Linux-based production environments. Comfortable navigating ambiguity and working with minimal supervision. Strong SQL knowledge, with experience using PostgreSQL in live systems. REST API development experience; understanding of JWT and cookie-based auth. Familiarity with Docker and AWS services, from a developer perspective. Comfortable with WebSockets. Comfortable with building lightweight frontends in More ❯

approach. Overview: We’re hiring on behalf of our client for a Product Engineer (backend C# .net core) to join their growing team. The role will focus on backend development for a platform that blends telephony, voice AI, and LLMs to create next-generation voice automation features. You’ll play a key role in building core product functionality, from … the future). Write performant SQL for PostgreSQL databases; help design schemas and queries. Build and manage WebSocket connections for real-time features. Build clean automation tests (unit, functional, API). Build minimal UI components using Blazor SSR (checkboxes, graphs ..etc). Assist with deployment using Docker (containerisation) and AWS (EC2, RDS). Integrate with telephony and AI services … experience with C# (.NET Core) in Linux-based production environments. Comfortable navigating ambiguity and working with minimal supervision. Strong SQL knowledge, with experience using PostgreSQL in live systems. REST API development experience; understanding of JWT and cookie-based auth. Familiarity with Docker and AWS services, from a developer perspective. Comfortable with WebSockets. Comfortable with building lightweight frontends in More ❯

focused approach. Overview: Were hiring on behalf of our client for a Product Engineer (backend C# .net core) to join their growing team. The role will focus on backend development for a platform that blends telephony, voice AI, and LLMs to create next-generation voice automation features. Youll play a key role in building core product functionality, from low … the future). Write performant SQL for PostgreSQL databases; help design schemas and queries. Build and manage WebSocket connections for real-time features. Build clean automation tests (unit, functional, API). Build minimal UI components using Blazor SSR (checkboxes, graphs ..etc). Assist with deployment using Docker (containerisation) and AWS (EC2, RDS). Integrate with telephony and AI services … experience with C# (.NET Core) in Linux-based production environments. Comfortable navigating ambiguity and working with minimal supervision. Strong SQL knowledge, with experience using PostgreSQL in live systems. REST API development experience; understanding of JWT and cookie-based auth. Familiarity with Docker and AWS services, from a developer perspective. Comfortable with WebSockets. Comfortable with building lightweight frontends in More ❯

humans in the loop where necessary. Overview: We’re hiring for a Product Engineer (backend C# .net core) to join our founding team. The role will focus on backend development that blends email, chat, telephony, voice AI and LLMs. You’ll play a key role in building core product functionality, from low-latency backend services to real-time communications … the future). Write performant SQL for PostgreSQL databases; help design schemas and queries. Build and manage WebSocket connections for real-time features. Build clean automation tests (unit, functional, API). Build minimal UI components using Blazor SSR (checkboxes, graphs ..etc). Assist with deployment using Docker (containerisation) and AWS (EC2, RDS). Integrate with telephony and AI services … experience with C# (.NET Core) in Linux-based production environments. Comfortable navigating ambiguity and working with minimal supervision. Strong SQL knowledge, with experience using PostgreSQL in live systems. REST API development experience; understanding of JWT and cookie-based auth. Familiarity with Docker and AWS services, from a developer perspective. Comfortable with WebSockets. Comfortable with building lightweight frontends in More ❯

In this role, you will build user- and developer-facing experiences across both the frontend and backend, as well as contribute to tooling and integrations. Key Responsibilities Full-Stack Development: Design, prototype, and build web interfaces, command-line tools, APIs, and integrations. Scalability & Performance: Architect and implement scalable backend systems and intuitive frontend experiences for AI-powered applications. Collaboration … Work closely with product, design, and research teams to transform new ideas into shipped features. AI Integration: Actively contribute to improving the internal AI-powered development toolchain. Code Quality & Best Practices: Write clean, high-quality code while reviewing and providing constructive feedback on team members' work. Required Experience And Skills Full-Stack Expertise: 10+ years of experience in full … stack development, with a proven track record of building and shipping at scale. JavaScript & TypeScript Mastery: 5+ years of JavaScript experience and 3+ years with TypeScript, embracing type safety and scalable architectures. Python Proficiency: 3+ years of experience developing robust backend systems in Python. Frontend Development: Strong skills in React, Next.js, and modern web technologies. Backend & API More ❯

You'll create systems that enable us to do more with less - leveraging your technical expertise to build solutions that scale without proportional resource increases. Core Responsibilities Technical Integration & Development Design and implement technical integrations between Intercom and internal systems Build custom solutions that enhance support efficiency and effectiveness Develop tools and automations that streamline support workflows Create scalable … align technical solutions with strategic goals Collaborate with the wider engineering team to ensure integrations follow best practices Partner with Product teams to incorporate customer support data into product development Provide technical guidance to support team members for troubleshooting complex issues Create documentation that bridges technical complexity for non-technical team members Data & Analytics Build data pipelines that extract … all support automation systems and integrations Time-to-Resolution: Technical contribution to reducing average resolution time through automation What You'll Bring Must-Haves 3+ years of full-stack development experience Strong API development and integration expertise, including REST and GraphQL Familiarity with database design and implementation Experience building and deploying scalable web applications Understanding of RESTful More ❯

want to login/join with: We are searching on behalf of our London Market Insurance client for a Technical Lead who will be responsible for overseeing the design, development, and implementation of technological solutions within the Reinsurance Segment. This role is critical in driving technical excellence, ensuring alignment with Lloyd’s, PRA, and FSA regulatory frameworks, and managing … both in-house and outsourced development teams. You will function as a bridge between business stakeholders and the technology teams, ensuring delivery of robust, scalable, and secure technology solutions. The role is responsible for providing hands-on technical oversight, including technology implementation approaches, for effectively providing the most optimal solution for the business. The incumbent will be an experienced … the syndicate’s business objectives and regulatory requirements. Architect, design, and implement technology solutions that enhance underwriting, claims, policy administration, and reporting systems. Oversee all stages of the software development lifecycle (SDLC), from requirements gathering and system design to development, testing, and deployment. Ensure adherence to best practices in system security, data governance, and Lloyd’s market regulations. More ❯

value of technology and build a more sustainable, more inclusive world. Your Role We are seeking passionate and experienced Senior Kotlin Developer with strong backgrounds in Spring Boot and API design. The ideal candidates are forward-thinking individuals with a senior developer's mindset, capable of driving complex features end-to-end and collaborating with cross-functional teams to … to deployment. Define technical solutions aligned with business objectives and ensure scalability, security, and maintainability. Create robust, efficient, and scalable APIs for frontend integration. Promote best practices in RESTful API design, documentation, and implementation. Work closely with technical and product stakeholders to clarify requirements and align on deliverables. Translate business needs into technical solutions and maintain clear communication across … teams Proactively identify and address technical challenges, driving continuous improvement in the codebase and processes. Stay updated with the latest trends in Kotlin, Spring Boot, and API design. Work closely with Mobile and Web FE team to build Backend for Frontend that enables faster scalable FE development Your Profile Proficiency in Kotlin and Spring Boot with hands-on More ❯

world’s most impressive payments businesses that work within a dynamic remote-first model. Our client’s aim is to hire a Software Architect to lead the design and development of scalable, high-performance software solutions. This role involves collaborating with cross-functional teams to ensure architectural integrity and alignment with business objectives. The successful candidate will work in … a multi-disciplinary team keeping close relationships with the product and development teams as well as external stakeholders. The Role Design and implement robust, scalable, and secure software architectures for our payment processing systems. Collaborate with product managers, developers, and stakeholders to translate business requirements into technical solutions. Evaluate and recommend technologies, tools, and frameworks to enhance our technology … stack. Lead architectural reviews and ensure adherence to best practices and coding standards. Mentor and guide development teams, fostering a culture of continuous improvement. Address performance and scalability challenges, implementing solutions to optimize system efficiency. Maintain comprehensive architectural documentation to support development and operational activities. What would make you a good fit? Bachelor’s or Master’s degree More ❯

autonomy and clean architecture are valued. The role combines hands-on technical contribution with the opportunity to shape processes and practices. You will: Work on a Greenfield project Lead development efforts using C#, Ruby on Rails and PHP (Symfony), with a strong focus on object-oriented programming Guide backend infrastructure work using AWS, Terraform and Helm Mentor three direct … reports and foster technical growth across your team Contribute to API development, architectural discussions and containerisation efforts (Kubernetes) Collaborate with Product Managers and other Tech Leads to align engineering efforts with business goals About you You are likely an experienced backend developer with a history of working across multiple technologies and leading high-performing teams. You will bring … Proven experience in object-oriented development, ideally with Ruby, C# or PHP (or other OO languages such as Java) A strong understanding of cloud infrastructure, especially within AWS environments Familiarity with infrastructure as code tools such as Terraform or Helm Confidence in mentoring and developing others, with a people-first approach to leadership A keen eye for clean code More ❯

autonomy and clean architecture are valued. The role combines hands-on technical contribution with the opportunity to shape processes and practices. You will: Work on a Greenfield project Lead development efforts using C#, Ruby on Rails and PHP (Symfony), with a strong focus on object-oriented programming Guide backend infrastructure work using AWS, Terraform and Helm Mentor three direct … reports and foster technical growth across your team Contribute to API development, architectural discussions and containerisation efforts (Kubernetes) Collaborate with Product Managers and other Tech Leads to align engineering efforts with business goals About you You are likely an experienced backend developer with a history of working across multiple technologies and leading high-performing teams. You will bring … Proven experience in object-oriented development, ideally with Ruby, C# or PHP (or other OO languages such as Java) A strong understanding of cloud infrastructure, especially within AWS environments Familiarity with infrastructure as code tools such as Terraform or Helm Confidence in mentoring and developing others, with a people-first approach to leadership A keen eye for clean code More ❯