151 to 175 of 376 API Development Jobs in the UK

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 ❯

etc.) to support event-driven workflows (training/support provided if needed) Write clean, efficient, and maintainable code following best practices Participate in code reviews and technical discussions around API design and architecture Collaborate with stakeholders to understand integration requirements and deliver robust solutions Contribute to an Agile team and help drive delivery through regular planning and retrospectives Monitor … debug, and improve the performance of integration pipelines What We’re Looking For 3+ years of software development experience with a focus on backend systems Solid programming skills in Java or Python Understanding of API development and basic integration concepts Strong grasp of software engineering fundamentals (data structures, modular design, testing) Comfortable working in a collaborative, Agile … team environment Proactive mindset with good communication skills Nice to Have (Bonus Experience) Exposure to AWS services like Lambda, API Gateway, SQS, or SNS Experience integrating with SaaS platforms or third-party APIs Familiarity with API security standards (OAuth, JWT) Experience with Git or similar version control systems 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 ❯

is to develop clean code, adhering to SOLID principles that is well tested, performant and maintainable. Responsibilities: Managing the exchange of data between different backend services (owned by separate development teams) and front-end application and third party API integration Development of all server-side logic, working with BA and Quality Assurance to ensure business logic is … service optimisation Documenting solutions through flowcharts, diagrams, code comments, clear code and via Confluence/knowledge base articles Ensuring compliance with quality guidelines (Unit Tests, Code Quality, Test Driven Development) Addressing non-functional requirements and operational/support-relevant topics during conception and implementation (e.g. logging, capacity/performance management, monitoring and distributed tracing/debugging) End-to-end … thinking during development - supporting and improving releases from test to integration and production environments Presentation and demonstration of concepts and services via show-and-tell demos, tech-talks and taking part in direct user feedback and evaluation sessions Following agile software development lifecycles, but maintaining foresight to reduce tech debt where possible and not at the cost of 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 ❯

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 ❯

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 ❯

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 ❯

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 ❯

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 ❯

Airflow, Mulesoft/Snaplogic, Apache NIFI, and Kafka, ensuring a robust, well-modelled, and scalable data analytics infrastructure running on MySQL and Postgres style databases primarily. Requirements: Advanced SQL development and deep understanding of RDBMS concepts and engines Practical knowledge of Data Warehouse infrastructure architecture and best practices Practical database design, development, administration knowledge (any RDBMS) Strong understanding … Airbyte, and Airflow Proven experience with DBT (data build tool) Proficiency with business intelligence tools (Power BI, Tableau, SAP BI, or similar). Integration & Programming Hands-on experience with API development and integration (REST/SOAP) Proficiency in at least 1 object/procedural/functional language (e.g: Java, PHP, Python) Familiarity with EAI tools such as MuleSoft 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 ❯

meets their needs. Helping to evolve your team practises and processes. Essential Qualifications/skills/experience: Passionate about changing lives with assistive technology. 5+ years of professional software development experience in modern C#. Knowledge of Computer Science fundamentals in data structures, algorithm design, problem-solving, and complexity analysis. Excellent understanding of software design principles. Confident and experienced with … automated testing - from unit tests to system and integration tests. REST API development using C# and ASP.NET Core. Experience developing, deploying and maintaining APIs in AWS/Azure - including use of load balancers, SQL/NoSQL data stores and caches. Understanding of REST API principles and best practices including API versioning, authentication/authorization models and 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 ❯

Description We are seeking an experienced and dynamic Global Application Manager & Eclipse Service Platform Product Owner to lead the development, management, and optimization of our global service applications and the Eclipse Service Platform. In this role, you will be responsible for defining the application and platform vision where product is owned by WTW or work with Vendor and business … KPIs) to measure success and impact. Work closely with Business colleagues to ensure the application functions as per agreed specifications and the support is fit for purpose Application & Platform Development & Integration: Lead with respective product owners the design, development, and enhancement of the global applications to improve scalability, performance, and security. Ensure seamless integration with other systems, applications … and third-party services. Oversee API development with product owner and ensure best practices in service-oriented architecture. Team Leadership & Collaboration: Work closely with engineering, DevOps, and support teams to deliver high-quality solutions. Facilitate agile ceremonies, including backlog grooming, sprint planning, and retrospectives. Act as the primary liaison between technical teams and business stakeholders. Operational Excellence & Continuous More ❯