1 to 25 of 154 API Development Jobs in the UK excluding London

Senior Software Engineer/Software Developer who has proven software application development experience across the stack C#, ASP, .NET, Blazor, API Development, Microservices, Containers and Deployment Pipelines is required for a well-established company based in Bedford, Bedfordshire. TWO JOBS AVAILABLE WOULD YOU LIKE TO HELP SHAPE THE FUTURE OF THE COMPANYS TECHNOLOGY? If you can design … Will Apply JOB TYPE: Full-Time, Permanent JOB OVERVIEW We have a fantastic new job opportunity for a Senior Software Engineer/Software Developer who has proven software application development experience across the stack C#, ASP, .NET, Blazor, API Development, Microservices, Containers and Deployment Pipelines. Working as a Senior Software Engineer/Software Developer youll design and … ensuring technical concepts are understood by all stakeholders CANDIDATE REQUIREMENTS Proven experience with Azure cloud services (App Services, Functions, SQL Database), identity & access, and infrastructure as code Strong software development skills across the stack using C#, ASP .NET, Blazor, API development, microservices, containers, and deployment pipelines Solid understanding of secure coding practices and compliance in SaaS environments More ❯

solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? We are seeking a Senior Backend Python Developer to support the development of our AI-driven marketing platform, with a strong focus on performance, scalability, and data pipeline architecture. This role is ideal for someone experienced in backend API development … founder of SkyScanner. Profits with Purpose - 10% of profits donated to 1moreChild orphanage yearly Markets: Marketing & eCommerce Agencies. eCommerce retailers. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. At ASK BOSCO , part of Modo25, were building a smarter, faster, people-first marketing tech business. We're entering a phase … take ownership of key technical decisions, mentor a talented team of developers, and help build a culture of engineering excellence. What Youll Be Doing: Youll support the design and development of scalable Python applications that power our AI-driven marketing platform. From architecting robust systems to guiding our technical roadmap, youll work cross-functionally to turn strategy into powerful More ❯

solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? We are seeking a Senior Backend Python Developer to support the development of our AI-driven marketing platform, with a strong focus on performance, scalability, and data pipeline architecture. This role is ideal for someone experienced in backend API development … founder of SkyScanner. Profits with Purpose - 10% of profits donated to 1moreChild orphanage yearly Markets: Marketing & eCommerce Agencies. eCommerce retailers. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. At ASK BOSCO , part of Modo25, were building a smarter, faster, people-first marketing tech business. We're entering a phase … take ownership of key technical decisions, mentor a talented team of developers, and help build a culture of engineering excellence. What Youll Be Doing: Youll support the design and development of scalable Python applications that power our AI-driven marketing platform. From architecting robust systems to guiding our technical roadmap, youll work cross-functionally to turn strategy into powerful More ❯

solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? We are seeking a Senior Backend Python Developer to support the development of our AI-driven marketing platform, with a strong focus on performance, scalability, and data pipeline architecture. This role is ideal for someone experienced in backend API development … founder of SkyScanner. Profits with Purpose - 10% of profits donated to 1moreChild orphanage yearly Markets: Marketing & eCommerce Agencies. eCommerce retailers. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. At ASK BOSCO , part of Modo25, were building a smarter, faster, people-first marketing tech business. We're entering a phase … take ownership of key technical decisions, mentor a talented team of developers, and help build a culture of engineering excellence. What Youll Be Doing: Youll support the design and development of scalable Python applications that power our AI-driven marketing platform. From architecting robust systems to guiding our technical roadmap, youll work cross-functionally to turn strategy into powerful More ❯

solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? We are seeking a Senior Backend Python Developer to support the development of our AI-driven marketing platform, with a strong focus on performance, scalability, and data pipeline architecture. This role is ideal for someone experienced in backend API development … founder of SkyScanner. Profits with Purpose - 10% of profits donated to 1moreChild orphanage yearly Markets: Marketing & eCommerce Agencies. eCommerce retailers. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. At ASK BOSCO , part of Modo25, were building a smarter, faster, people-first marketing tech business. We're entering a phase … take ownership of key technical decisions, mentor a talented team of developers, and help build a culture of engineering excellence. What Youll Be Doing: Youll support the design and development of scalable Python applications that power our AI-driven marketing platform. From architecting robust systems to guiding our technical roadmap, youll work cross-functionally to turn strategy into powerful More ❯

solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? We are seeking a Senior Backend Python Developer to support the development of our AI-driven marketing platform, with a strong focus on performance, scalability, and data pipeline architecture. This role is ideal for someone experienced in backend API development … founder of SkyScanner. Profits with Purpose - 10% of profits donated to 1moreChild orphanage yearly Markets: Marketing & eCommerce Agencies. eCommerce retailers. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. At ASK BOSCO , part of Modo25, were building a smarter, faster, people-first marketing tech business. We're entering a phase … take ownership of key technical decisions, mentor a talented team of developers, and help build a culture of engineering excellence. What Youll Be Doing: Youll support the design and development of scalable Python applications that power our AI-driven marketing platform. From architecting robust systems to guiding our technical roadmap, youll work cross-functionally to turn strategy into powerful More ❯

solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? We are seeking a Senior Backend Python Developer to support the development of our AI-driven marketing platform, with a strong focus on performance, scalability, and data pipeline architecture. This role is ideal for someone experienced in backend API development … co-founder of SkyScanner. Profits with Purpose - 10% of profits donated to 1moreChild orphanage yearlyMarkets: Marketing & eCommerce Agencies. eCommerce retailers. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. At ASK BOSCO® , part of Modo25, we’re building a smarter, faster, people-first marketing tech business. We're entering a … of key technical decisions, mentor a talented team of developers, and help build a culture of engineering excellence. What You’ll Be Doing: You’ll support the design and development of scalable Python applications that power our AI-driven marketing platform. From architecting robust systems to guiding our technical roadmap, you’ll work cross-functionally to turn strategy into More ❯

driven solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? We are seeking a Senior Backend Developer to support the development of our AI-driven marketing platform, with a strong focus on performance, scalability, and data pipeline architecture. This role is ideal for someone experienced in backend API development … founder of SkyScanner. Profits with Purpose - 10% of profits donated to 1moreChild orphanage yearly Markets: Marketing & eCommerce Agencies. eCommerce retailers. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. At ASK BOSCO® , part of Modo25, we’re building a smarter, faster, people-first marketing tech business. We're entering a … of key technical decisions, mentor a talented team of developers, and help build a culture of engineering excellence. What You’ll Be Doing: You’ll support the design and development of scalable Python applications that power our AI-driven marketing platform. From architecting robust systems to guiding our technical roadmap, you’ll work cross-functionally to turn strategy into More ❯

Must have skills: • A successful LCNC and API Integration Architect typically has a strong background in software development and systems integration. Essential qualifications include: • Technical Expertise: Deep knowledge of integration patterns, API architecture (REST, SOAP), and microservices. Proficiency with at least one major iPaaS or LCNC platform. • Analytical Skills: The ability to analyze complex business problems and … Excellent verbal and written communication skills to effectively collaborate with both technical and non-technical stakeholders. • Leadership: Experience leading large-scale integration projects in an agile environment and mentoring development teams. • Problem-Solving: Strong troubleshooting and problem-solving abilities to address integration issues in a timely manner Minimum number of relevant years of experience: - 10+ years of exp in … API and LCNC development. - Minimum 3 to 4 years of architect experience. RESPONSIBLITIES A Low-Code/No-Code (LCNC) and API Integration Architect is a senior technical role responsible for designing and overseeing the implementation of enterprise-wide integration solutions, with a strong emphasis on using low-code/no-code platforms and APIs. This role combines More ❯

Must have skills: • A successful LCNC and API Integration Architect typically has a strong background in software development and systems integration. Essential qualifications include: • Technical Expertise: Deep knowledge of integration patterns, API architecture (REST, SOAP), and microservices. Proficiency with at least one major iPaaS or LCNC platform. • Analytical Skills: The ability to analyze complex business problems and … Excellent verbal and written communication skills to effectively collaborate with both technical and non-technical stakeholders. • Leadership: Experience leading large-scale integration projects in an agile environment and mentoring development teams. • Problem-Solving: Strong troubleshooting and problem-solving abilities to address integration issues in a timely manner Minimum number of relevant years of experience: - 10+ years of exp in … API and LCNC development. - Minimum 3 to 4 years of architect experience. RESPONSIBLITIES A Low-Code/No-Code (LCNC) and API Integration Architect is a senior technical role responsible for designing and overseeing the implementation of enterprise-wide integration solutions, with a strong emphasis on using low-code/no-code platforms and APIs. This role combines More ❯

Must have skills: • A successful LCNC and API Integration Architect typically has a strong background in software development and systems integration. Essential qualifications include: • Technical Expertise: Deep knowledge of integration patterns, API architecture (REST, SOAP), and microservices. Proficiency with at least one major iPaaS or LCNC platform. • Analytical Skills: The ability to analyze complex business problems and … Excellent verbal and written communication skills to effectively collaborate with both technical and non-technical stakeholders. • Leadership: Experience leading large-scale integration projects in an agile environment and mentoring development teams. • Problem-Solving: Strong troubleshooting and problem-solving abilities to address integration issues in a timely manner Minimum number of relevant years of experience: - 10+ years of exp in … API and LCNC development. - Minimum 3 to 4 years of architect experience. RESPONSIBLITIES A Low-Code/No-Code (LCNC) and API Integration Architect is a senior technical role responsible for designing and overseeing the implementation of enterprise-wide integration solutions, with a strong emphasis on using low-code/no-code platforms and APIs. This role combines More ❯

Contract Developer - Node.js development, REST API design, and SIP-based communications Duration: 3 months (Outside IR35) Location: Bracknell/Hybrid Contract Developer with deep expertise in Node.js development, REST API design, and SIP-based communications. This role is crucial for supporting the migration of legacy device management, call control, and configuration workflows to a secure, scalable … Cloud Migration & Refactoring: Analyse existing applications to identify dependencies on on-prem infrastructure and design cloud-native solutions. Refactor services to enhance scalability and reliability in the cloud. Service & API Development: Develop and maintain secure REST APIs for functionalities such as SIP authentication, call control, and real-time data interactions. Real-Time Communication Integration: Implement and maintain robust … Compliance: Oversee the migration of sensitive data to secure cloud storage solutions, ensuring compliance with GDPR and other regulatory standards. Required Skills & Qualifications: Experience: Minimum 3 years of backend development experience using Node.js/Express. Proven track record in building and deploying REST APIs. Experience with SIP/TLS integration and managing real-time communications. Familiarity with cloud services More ❯

Contract Developer - Node.js development, REST API design, and SIP-based communications Duration: 3 months (Outside IR35) Location: Bracknell/Hybrid Contract Developer with deep expertise in Node.js development, REST API design, and SIP-based communications. This role is crucial for supporting the migration of legacy device management, call control, and configuration workflows to a secure, scalable … Cloud Migration & Refactoring: Analyse existing applications to identify dependencies on on-prem infrastructure and design cloud-native solutions. Refactor services to enhance scalability and reliability in the cloud. Service & API Development: Develop and maintain secure REST APIs for functionalities such as SIP authentication, call control, and real-time data interactions. Real-Time Communication Integration: Implement and maintain robust … Compliance: Oversee the migration of sensitive data to secure cloud storage solutions, ensuring compliance with GDPR and other regulatory standards. Required Skills & Qualifications: Experience: Minimum 3 years of backend development experience using Node.js/Express. Proven track record in building and deploying REST APIs. Experience with SIP/TLS integration and managing real-time communications. Familiarity with cloud services More ❯

Contract Developer - Node.js development, REST API design, and SIP-based communications Duration: 3 months (Outside IR35) Location: Bracknell/Hybrid Contract Developer with deep expertise in Node.js development, REST API design, and SIP-based communications. This role is crucial for supporting the migration of legacy device management, call control, and configuration workflows to a secure, scalable … Cloud Migration & Refactoring: Analyse existing applications to identify dependencies on on-prem infrastructure and design cloud-native solutions. Refactor services to enhance scalability and reliability in the cloud. Service & API Development: Develop and maintain secure REST APIs for functionalities such as SIP authentication, call control, and real-time data interactions. Real-Time Communication Integration: Implement and maintain robust … Compliance: Oversee the migration of sensitive data to secure cloud storage solutions, ensuring compliance with GDPR and other regulatory standards. Required Skills & Qualifications: Experience: Minimum 3 years of backend development experience using Node.js/Express. Proven track record in building and deploying REST APIs. Experience with SIP/TLS integration and managing real-time communications. Familiarity with cloud services More ❯

AWS Developers with prior experience working with Amazon Q. You will be joining a project in which they are in the process of combining 4 feeds in a Bulk API project with an AWS POC using Q developer. You will be getting involved with AWS API development ideally using Q developer. Qualifications AWS Development AWS services … API development AWS Q/Amazon Q Developer experience or understanding Details This is a rolling 6 month contract operating INSIDE IR35. Ideally candidates can travel to the Edinburgh office a few times per month. Job Title AWS Developer (Amazon Q) Location Edinburgh, UK Job Type Contract Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell More ❯

AWS Developers with prior experience working with Amazon Q. You will be joining a project in which they are in the process of combining 4 feeds in a Bulk API project with an AWS POC using Q developer. You will be getting involved with AWS API development ideally using Q developer. Top Skills AWS Development AWS … services API development AWS Q/Amazon Q Developer experience or understanding This is a rolling 6 month contract operating INSIDE IR35. Ideally candidates can travel to the Edinburgh office a few times per month. Please apply within for further information. Job Title: AWS Developer (Amazon Q) Location: Edinburgh, UK Job Type: Contract Trading as TEKsystems. Allegis Group More ❯

Contract Developer - Node.js development, REST API design, and SIP-based communications Duration: 3 months (Outside IR35) Location: Bracknell/Hybrid Contract Developer with deep expertise in Node.js development, REST API design, and SIP-based communications. This role is crucial for supporting the migration of legacy device management, call control, and configuration workflows to a secure, scalable … Cloud Migration & Refactoring: Analyse existing applications to identify dependencies on on-prem infrastructure and design cloud-native solutions. Refactor services to enhance scalability and reliability in the cloud. Service & API Development: Develop and maintain secure REST APIs for functionalities such as SIP authentication, call control, and real-time data interactions. Real-Time Communication Integration: Implement and maintain robust … Compliance: Oversee the migration of sensitive data to secure cloud storage solutions, ensuring compliance with GDPR and other regulatory standards. Required Skills & Qualifications: Experience: Minimum 3 years of backend development experience using Node.js/Express. Proven track record in building and deploying REST APIs. Experience with SIP/TLS integration and managing real-time communications. Familiarity with cloud services More ❯

Scrum ) and thrive in a fast-paced, dynamic setting. They should have a keen interest in emerging technologies , staying ahead of industry trends, and be committed to continuous skill development . A professional and approachable demeanor is key, as is the ability to champion the adoption of innovative technologies within the team. Experience Good knowledge of Microsoft development technologies Visual Studio 2022 onwards Strong C#/.NET experience Net/.Net Core Web API development experience API documentation generation tools Experience using IoC containers SQL Server experience Experience using Entity Framework OOAD skills and good understanding of Design Patterns and Practices Web services (SOAP and/or WCF) Unit testing/Test Driven Development Distributed WinForms systems development Desirable Familiarity with DevOps tools for managing work items and source control, with TFS experience being a plus. Alternatively, experience working in a source-controlled, continuous integration (CI) environment. Background in the finance or pensions sector, with an understanding of industry-specific requirements and practices. Proficient in SQL Server query optimisation, including performance tuning More ❯

Scrum ) and thrive in a fast-paced, dynamic setting. They should have a keen interest in emerging technologies , staying ahead of industry trends, and be committed to continuous skill development . A professional and approachable demeanor is key, as is the ability to champion the adoption of innovative technologies within the team. Experience Good knowledge of Microsoft development technologies Visual Studio 2022 onwards Strong C#/.NET experience Net/.Net Core Web API development experience API documentation generation tools Experience using IoC containers SQL Server experience Experience using Entity Framework OOAD skills and good understanding of Design Patterns and Practices Web services (SOAP and/or WCF) Unit testing/Test Driven Development Distributed WinForms systems development Desirable Familiarity with DevOps tools for managing work items and source control, with TFS experience being a plus. Alternatively, experience working in a source-controlled, continuous integration (CI) environment. Background in the finance or pensions sector, with an understanding of industry-specific requirements and practices. Proficient in SQL Server query optimisation, including performance tuning More ❯

key themes shaping the market, through either public markets or alternative asset classes. About the Department As a Software Engineer (Full Stack), you will be a member of the Development Chapter within the Asset Management Tribe, reporting to the Development Chapter Lead and working as part of a cross-functional team. You will contribute to the design, development … management, data analysis, and regulatory reporting. Your ability to translate business requirements into scalable, maintainable technology will be essential to your success.While your primary focus will be on application development aligned to your core skillset, you will also have opportunities to work across a broader technology landscape and collaborate with engineers from other disciplines. You will be encouraged to … engineering best practices, including test automation, CI/CD pipelines, and secure coding standards, and participate in code reviews, pair programming, and knowledge sharing. Explore and apply AI-assisted development tools (e.g. GitHub Copilot) and automation to improve engineering efficiency and solution quality. About the Candidate We are looking for someone who thrives in an Agile environment, is self More ❯

organisation in the manufacturing industry who are embarking on an exciting transformation project to develop a brand-new B2B solution that will replace our existing platform. While the core development will be outsourced, they're building a strong internal capability to support ongoing enhancements and ensure the solution evolves with our business needs. This is a fantastic opportunity to … be involved from the ground up and make a lasting impact. Your new role Collaborate closely with external development partners and internal stakeholders to ensure the new B2B solution is aligned with business requirements, scalable, and maintainable. Provide technical oversight during the development lifecycle and build in-house capabilities to support future enhancements, integrations, and continuous improvement initiatives. … What you'll need to succeed 1+ years in a similar role within a fast-paced warehousing or logistics environment. Web Development: Proficiency in HTML, CSS, JavaScript (React, Vue.js, or similar). Experience with Liquid templating (used in BigCommerce themes). Responsive design and accessibility standards. API Development & Integration: RESTful API design and consumption. Experience with More ❯

organisation in the manufacturing industry who are embarking on an exciting transformation project to develop a brand-new B2B solution that will replace our existing platform. While the core development will be outsourced, they're building a strong internal capability to support ongoing enhancements and ensure the solution evolves with our business needs. This is a fantastic opportunity to … be involved from the ground up and make a lasting impact. Your new role Collaborate closely with external development partners and internal stakeholders to ensure the new B2B solution is aligned with business requirements, scalable, and maintainable. Provide technical oversight during the development lifecycle and build in-house capabilities to support future enhancements, integrations, and continuous improvement initiatives. … What you'll need to succeed 1+ years in a similar role within a fast-paced warehousing or logistics environment. Web Development: Proficiency in HTML, CSS, JavaScript (React, Vue.js, or similar). Experience with Liquid templating (used in BigCommerce themes). Responsive design and accessibility standards. API Development & Integration: RESTful API design and consumption. Experience with More ❯

s client is recruiting for a AI Engineer on a 6 month contract. Main Responsibilities Experienced software engineers are required to provide hands-on technical leadership to an agile development team seeking to leverage document processing and ML to realise new automation opportunities for the organisation. Enhance and expand automation services using OCR, Object Detection and LLMs. Design, develop … debugging. Data Processing: Proficient with Pandas, NumPy, SQLAlchemy/psycopg2, AWS Boto3. Cloud & Infrastructure: Hands-on AWS (Lambda, S3, CloudWatch, IAM, CDK, SQS, EKS/ECS/Kubernetes). API Development: FastAPI, REST API design, external integrations, authentication (JWT/OAuth). Software Engineering: Building production AI/ML systems, collaborative development, service/serverless architectures. … Development Practices: Agile (Scrum/Kanban), TDD, pair programming, infrastructure-as-code, monitoring tools (Grafana). This role falls outside of IR35 and is hybrid working with the expectation to attend the Edinburgh or Glasgow office as and when required. Please note that for this role you must have or be happy to get a Basic Disclosure Scotland. To More ❯

Lead the design, enhancement, and build of our integrations with different payment networks as a pivotal figure within our VPC & Domestic Processing team in Payment Processing Actively participate in development projects, constructing, REST services API, and container-based services. Develop and maintain highly functional, secure, scalable, and resilient systems Prioritize and manage multiple demands and projects in a … the team, continuously challenging and pushing for team-wide growth and success. Regularly report progress, issues and solutions to upper management to keep them informed. Provide technical leadership to development team by participating in design, performing design reviews and code reviews. Provide technical leadership for quality assurance and test engineering activities - manual and automation This is a hybrid position. … or with an Advanced Degree. You have payments related SME knowledge in one or more of the following industries - Banking, Fintech, Retail, Healthcare, Insurance Proficient in Web Services/API Development using SOAP or REST, JSON and XML. Experience in Kafka - Ability to install, maintain and troubleshoot Kafka. Have experience with messaging and stream processing on Kafka. Have More ❯

the success driving innovation and excellence in our network infrastructure. Essential Technical Skills: Front-end: Angular, TypeScript Back-end: Java, Python, Spring Boot Database: MongoDB, PL/SQL,NOSQL API Development: RESTful APIs Version Control: Git CI/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms (AWS, Azure, Google … Cloud) Security and Compliance API Documentation (e.g., Swagger, OpenAPI) Code Quality Tools (e.g., SonarQube) Agile Methodologies (Scrum or Kanban) Soft Skills: Team Collaboration : Ability to work effectively with cross-functional teams, sharing knowledge and expertise. Proactive Approach : Anticipate challenges, identify opportunities, and take initiative to drive progress. Ownership and Accountability : Take ownership of tasks and projects, driving them to … the larger picture. Problem-Solving and Resilience : Drive issues to resolution, navigating complexities without getting bogged down. Training CACI Network Services develops individuals through a portfolio of training and development options such as certified training courses, workshops, technical conferences, boot camps, on-line training and much more. You will have the opportunity to work on some of the most More ❯