1 to 25 of 130 Permanent API Design Jobs in the UK excluding London

control platforms such as GIT. Cloud and Testing: Enhance your skills with Cloudflare, AWS, Terraform, and testing frameworks like Xunit, Nunit, Jest, and Jasmine. API Design: Design, develop, and consume RESTful APIs. Agile Methodologies: Embrace Agile methodologies (Sprints, Scrum, Stand-Ups) to deliver high-quality, responsive solutions. … JavaScript and web technologies (Angular, Vue, React), HTML5, CSS3, IIS SQL Server and MySQL CI/CD tools (TeamCity) Source control platforms (GIT) RESTful API design and consumption Testing frameworks (Xunit, Nunit, Jest, Jasmine) Logging tools (Elasticsearch, Rollbar, Sentry) Nice to Have: Cloudflare, AWS, Terraform experience Join us More ❯

control platforms such as GIT. Cloud and Testing: Enhance your skills with Cloudflare, AWS, Terraform, and testing frameworks like Xunit, Nunit, Jest, and Jasmine. API Design: Design, develop, and consume RESTful APIs. Agile Methodologies: Embrace Agile methodologies (Sprints, Scrum, Stand-Ups) to deliver high-quality, responsive solutions. … JavaScript and web technologies (Angular, Vue, React), HTML5, CSS3, IIS SQL Server and MySQL CI/CD tools (TeamCity) Source control platforms (GIT) RESTful API design and consumption Testing frameworks (Xunit, Nunit, Jest, Jasmine) Logging tools (Elasticsearch, Rollbar, Sentry) Nice to Have: Cloudflare, AWS, Terraform experience Join us More ❯

Description: Role:API designer Location: Knutsford (Hybrid) Duration: End of July 2025 Description: Accountable for delivering effective solution designs within the Open Banking COE taking the lead on the solution design from an API design and API Security perspective Design end-to-end API … solution planning, providing input into the estimation process as well as highlighting technical risks, issues, and assumptions Define and derive best practices in the API space, adopting industry best practices and highlighting areas of improvements Produce required design artefacts, independently or as part of a team Engage with … align with strategic architecture principles and direction Review the designs and code produced by the technical teams to ensure alignment with the overall solution design Support the delivery lead, to break down the solution so that it can be delivered iteratively in sprints Review requirements and monitor change requests More ❯

recruitment specialist that provides support to the clients across EMEA, APAC, US and Canada. We have an excellent job opportunity for you. Description: Role:API designer Pay rate: 402 GBP/day inside IR35 Location: Knutsford (Hybrid) Duration: End of July 2025 Description: Accountable for delivering effective solution designs … within the Open Banking COE taking the lead on the solution design from an API design and API Security perspective Design end-to-end API solutions to meet business needs within the context of a broader solution implementation Contributor to overall solution planning, providing … input into the estimation process as well as highlighting technical risks, issues, and assumptions Define and derive best practices in the API space, adopting industry best practices and highlighting areas of improvements Produce required design artefacts, independently or as part of a team Engage with key stakeholders in More ❯

advancements, initially targeting the medical, education, and legal sectors. We specialize in turning innovation into impact. We are seeking an experienced Solution Architect to design and own the solution architecture for our scalable SaaS and custom products . The ideal candidate will align with the product roadmap, purpose, and … strong focus on Microservices Architecture , ensuring that our solutions are scalable, configurable, and cloud-agnostic, with seamless integrations across various systems. Key Responsibilities: Architecture & Design: Microservices Focus : Architect, design, and implement a robust microservices-based solution, enabling agility, scalability, and independent service deployments. Define and own the solution … architecture for the product, ensuring scalability, configurability, and cloud-agnostic capabilities. Develop HLD (High-Level Design) and LLD (Low-Level Design) documents for the product. Create and maintain the deployment architecture , ensuring efficient and resilient deployment strategies. Design the integration architecture , including APIs, microservices, and third-party More ❯

Computers/Software Relevant Experience Required: 3+ years in Leading the Development Team, 5+ years in software development using C# and .NET, including REST API design Work Location: Manchester, UK Must be currently based in Manchester, UK, or Willing to relocate to Manchester, UK from anywhere within Europe … CI/CD, and DevOps to improve efficiency and speed to market Collaborate with business stakeholders to translate requirements into technical roadmaps Oversee architecture, design, and resource planning to ensure maintainability and scalability Top 5 Essential Skills Proven leadership in managing and scaling software development teams Strong expertise in … C# and .NET development, including REST API design Deep understanding of Agile and DevOps methodologies Hands-on experience with cloud-native development, preferably on Azure Ability to balance multiple projects while upholding technical excellence Top 5 Optional Skills Degree in Computer Science or related field Experience delivering large More ❯

engineers, UI developers, document quality specialists, legal experts and product managers to enhance and improve our data model, the AI-driven document processing pipeline, API layers, internal tools and UIs. You will create high-level and detailed designs, as well as work collaboratively regards coding best practices, PR reviews … About you: You’re an experienced engineer spanning backend used to working in Python You like to own the whole solution, from database schema design to API format and UI design principles You’ll be comfortable working with Agile, testing work and deploying to production multiple times … by prioritising speed of delivery or reliability depending on the circumstances Your experience: Several years production experience with Python 3 Experience with database schema design and an understanding of optimisations for read-heavy write-heavy workloads with PostgreSQL Production experience with API design & benchmarking especially JSON REST More ❯

engineers, UI developers, document quality specialists, legal experts and product managers to enhance and improve our data model, the AI-driven document processing pipeline, API layers, internal tools and UIs. You will create high-level and detailed designs, as well as work collaboratively regards coding best practices, PR reviews … About you: You’re an experienced engineer spanning backend used to working in Python You like to own the whole solution, from database schema design to API format and UI design principles You’ll be comfortable working with Agile, testing work and deploying to production multiple times … by prioritising speed of delivery or reliability depending on the circumstances Your experience: Several years production experience with Python 3 Experience with database schema design and an understanding of optimisations for read-heavy write-heavy workloads with PostgreSQL Production experience with API design & benchmarking especially JSON REST More ❯

engineers, UI developers, document quality specialists, legal experts and product managers to enhance and improve our data model, the AI-driven document processing pipeline, API layers, internal tools and UIs. You will create high-level and detailed designs, as well as work collaboratively regards coding best practices, PR reviews … About you: You’re an experienced engineer spanning backend used to working in Python You like to own the whole solution, from database schema design to API format and UI design principles You’ll be comfortable working with Agile, testing work and deploying to production multiple times … by prioritising speed of delivery or reliability depending on the circumstances Your experience: Several years production experience with Python 3 Experience with database schema design and an understanding of optimisations for read-heavy write-heavy workloads with PostgreSQL Production experience with API design & benchmarking especially JSON REST More ❯

portfolio: Architectural Leadership Define and maintain the overarching software architecture and technical strategy, ensuring alignment with business goals and project roadmaps. Establish and promote design principles, patterns, and standards to ensure a stable and reusable codebase. Collaborate with Lead Engineers to ensure architectural consistency across teams and projects. Conduct … processes and robust infrastructure support. DevOps and Automation Leadership Champion and lead the adoption of DevOps practices to streamline software development, testing, and deployment. Design and implement CI/CD pipelines to enable fast and reliable delivery of software solutions. Drive automation initiatives across development and operational workflows, enhancing … monitoring tools into the development lifecycle. Cloud Architecture and Security Ensure the security, robustness, and scalability of cloud-based systems and architectures. Lead the design and maintenance of secure cloud infrastructure, adhering to industry best practices and compliance standards. Implement strategies to monitor and protect systems from vulnerabilities and More ❯

are looking for a solutions-oriented individual who can contribute effectively within a team and has the ability to lead projects that include complex design and system integrations. Responsibilities: Design & Development: Architect, design, and implement scalable and reliable Java-based software solutions. Contribute to the development of … industry standards. Code Quality: Write clean, efficient, well-documented, and maintainable Java code. Conduct thorough code reviews and advocate for best practices in software design and coding standards. Collaboration: Work closely with stakeholders, product managers, architects, and other engineers to understand the requirements and translate them into technical solutions. … applications. Technical Skills: Backend Development: Strong expertise in Java and related frameworks such as Spring or Spring Boot. Experience with modern architecture and related design patterns. Strong algorithmic and object-oriented design skills. Recent experience with RESTful API design and implementations is preferred. Architecture: Proven experience More ❯

The Change Partners are working with a tier-1 Beverage brand who are hiring for a Azure (API) Integration Engineer. The Azure Specialist will be responsible in desiging integration strategies for a variety of systems internally, creating efficiencies across data flows and ensuring seamless API implementation. Please note … OAuth2 and Cloud) integration development. Partner with technology and business teams to define requirements for integration and align to business objectives. Lead on integration design solutions and API patterns. Be the 'go to' specialist for platform integration, working with Product owner. Manage end to end lifecycle development of … the product from a design, build, deployment and operational management of the platform. Ensure platform/product is developed efficiently and reliably in line with company policies. Become hands on with API integration patterns, REST, SOAP, cloud and wider architectures, components, visualisation of networks and autonomy. Work with More ❯

Java Full stack Software Engineer Job Description: Opportunity for talented Full Stack Software Engineer to join collaborative engineering team. This role will focus on design, architecture, and implementation of software components as well as the overall solution, utilizing concepts, and best engineering practices of microservices architecture. As Full Stack … improvements to provide our customers and partners future proof, flexible and scalable solutions, while maintaining high quality standards. You will be responsible for analysis, design, automation, engineering, research and development, implementation, following and implementing design patterns and principles, utilizing concepts of clean architecture and clean code. Primary Responsibilities … Develop and maintain server-side and client-side applications using React, TypeScript, Java, Spring Boot, ensuring code quality, efficiency, and adherence to best practices. Design and implement scalable and efficient data structures and algorithms to optimize application performance. Ensure seamless integration of front-end and back-end components to More ❯

Java Full stack Software Engineer Job Description: Opportunity for talented Full Stack Software Engineer to join collaborative engineering team. This role will focus on design, architecture, and implementation of software components as well as the overall solution, utilizing concepts, and best engineering practices of microservices architecture. As Full Stack … improvements to provide our customers and partners future proof, flexible and scalable solutions, while maintaining high quality standards. You will be responsible for analysis, design, automation, engineering, research and development, implementation, following and implementing design patterns and principles, utilizing concepts of clean architecture and clean code. Primary Responsibilities … Develop and maintain server-side and client-side applications using React, TypeScript, Java, Spring Boot, ensuring code quality, efficiency, and adherence to best practices. Design and implement scalable and efficient data structures and algorithms to optimize application performance. Ensure seamless integration of front-end and back-end components to More ❯

Integration Engineer - Stevenage - Hybrid We are seeking an Integration Specialist to design, develop, and deploy integrations between cloud-based and third-party systems using AWS services like API Gateway, Lambda, EventBridge, and SQS. The role involves building scalable, secure integrations and collaborating with cross-functional teams to ensure … efficient data flow and best practices. Responsibilities: Develop and deploy integration solutions using AWS services (e.g., API Gateway, AWS Glue, Lambda, EventBridge, SNS, SQS). Write and maintain RESTful APIs using AWS API Gateway and Lambda (Java or C#). Develop and optimise AWS Lambda functions to support … integration workflows, and Lambda functions. Assist in the configuration and customisation of integration workflows to meet business requirements. Participate in technical discussions related to API design, data flow, and integration strategies, contributing to design decisions. Follow best practices for code quality, writing clean, maintainable, and well-documented More ❯

Integration Engineer - Stevenage - Hybrid We are seeking an Integration Specialist to design, develop, and deploy integrations between cloud-based and third-party systems using AWS services like API Gateway, Lambda, EventBridge, and SQS. The role involves building scalable, secure integrations and collaborating with cross-functional teams to ensure … efficient data flow and best practices. Responsibilities: Develop and deploy integration solutions using AWS services (e.g., API Gateway, AWS Glue, Lambda, EventBridge, SNS, SQS). Write and maintain RESTful APIs using AWS API Gateway and Lambda (Java or C#). Develop and optimise AWS Lambda functions to support … integration workflows, and Lambda functions. Assist in the configuration and customisation of integration workflows to meet business requirements. Participate in technical discussions related to API design, data flow, and integration strategies, contributing to design decisions. Follow best practices for code quality, writing clean, maintainable, and well-documented More ❯

seeking a Solutions Architect to play a central role in shaping scalable, secure, and future-proof solutions. What You’ll Be Doing: Leading the design and delivery of Azure-based architectures (IaaS, PaaS, serverless, data, AI/ML). Working cross-functionally to understand business capabilities and define target … and technical documentation (HLD/LLD). Supporting architectural governance, procurement decisions, and executive reporting. Mentoring engineering teams on best practices in Azure, DevOps, API design, and security. What You’ll Bring: Strong architectural understanding across infrastructure, software, data, and security. Proven experience in Azure migration and modernisation … of legacy platforms. Deep knowledge of Microsoft Azure (M365, Entra, APIM, Azure DevOps). Experience in microservices, AKS, API-first design, and middleware tools like Logic Apps and Service Bus. A track record of delivering system integration programmes at scale. Clear communication skills with the ability to simplify More ❯

in Computer Science or relevant discipline 3-5 years professional software development experience Strong Python skills Some experience with Reinforcement Learning Solid grounding in API design, algorithms, design principles Well versed with industry standard development practices, testing frameworks, source control (git), CI, etc Experience of agile development More ❯

company helping clients engage in marketing strategies with audiences in virtual worlds. Your Focus: As a Senior Backend Engineer focused on Data Pipelines and API Optimisation, you’ll be central to our platform's performance and scalability. You’ll design, build, and iterate on the systems that handle … delivery - ensuring they are scalable, reliable, and performant. You should have a strong background in backend engineering, particularly around distributed systems, database optimisation, and API development. You’ll work with technologies like JavaScript and TypeScript to build robust services that meet high standards for performance and reliability. This role … is ideal for someone experienced, self-driven, and excited about leading backend projects involving large-scale data handling and API improvements. Your technical leadership will help evolve our infrastructure and mentor other engineers as we scale. Skills, Knowledge, and Expertise Experience 5+ years in Backend Software Engineering, with a More ❯

ll need commercial experience in C#/.NET Development Tech Stack: C#/.NET Core UI Development (WPF/XAML/MVVM) Entity Framework API Design & Development OOP SQL Git/TFS Desirable skills include Docker, Kubernetes, CI/CD, Android & Azure DevOps Role Overview: Design & architecture … of applications and design/development of user-facing applications Building reusable code libraries Testing, validation and optimisation Cross application functionality Documenting Problem solving and investigation Peer code reviews Requirements gathering (ad-hoc) Learning and upskilling into new technology You’ll be joining an established Employee owned business (EBT More ❯

quality standards. Provide technical oversight, guidance and leadership to the team (including code quality, best practices, processes, some aspects of release management, etc.). Design and document solutions meeting functional and non-functional requirements. Lead by example by getting directly involved in the day-to-day delivery of work … for this position are: Practical experience of designing and developing management and control plane solutions for line of business applications. This includes Stack Management, API Design and User Experience. Practical and commercial experience with the full SaaS development lifecycle: requirements capture and analysis, estimation, architecture and design, implementation, unit and system-level testing, deployment, operation and monitoring. Experience with software engineering best practices: object-oriented design and implementation, design patterns, SOLID principles and Agile methodology. Conduct PoC's using the latest technologies and present the findings to technical and non-technical audiences. Experience with More ❯

ll need commercial experience in C#/.NET Development Tech Stack: C#/.NET Core UI Development (WPF/XAML/MVVM) Entity Framework API Design & Development OOP SQL Git/TFS Desirable skills include Docker, Kubernetes, CI/CD, Android & Azure DevOps Role Overview: Design & architecture … of applications and design/development of user-facing applications Building reusable code libraries Testing, validation and optimisation Cross application functionality Documenting Problem solving and investigation Peer code reviews Requirements gathering (ad-hoc) Learning and upskilling into new technology You’ll be joining an established Employee owned business (EBT More ❯

Start Date: ASAP Key Skills and Responsibilities: Integration Services: Proficient in Azure Logic Apps, Azure Functions, Azure Service Bus, Azure Event Grid, and Azure API Management. Programming: Strong skills in C#, .NET, and related web technologies. Database: Experience with relational databases, particularly SQL Server. API Design: Expertise … Solving: Strong ability to troubleshoot integration issues and provide effective solutions. Duties : Develop and deploy integration solutions using Azure Logic Apps and Azure Functions. Design and implement API gateways and network components for seamless data integration. Build and support reusable integration interfaces. Collaborate with business stakeholders and analysts More ❯

degree in computer science or other numerate STEM discipline. Substantial commercial full stack development experience. Excellent coding skills in Python, JavaScript (or TypeScript), RESTful API design, and FastAPI. Knowledge of the following will enhance your application: JavaScript frameworks, ideally React, user-interface design, PostgreSQL schema design More ❯

commercial consulting. Key Responsibilities Contribute to the development and evolution of their analytical capability, working alongside a highly skilled team of energy market experts. Design, build and maintain robust database infrastructure to optimise internal data workflows and enable scalable access to data to consultants and to our in-house … including cloud-based solutions, to enable efficient and scalable stochastic modelling of power systems and energy assets across European and global markets. Lead the design and improvement of UI/UX components of our internal modelling tools, ensuring ease of use, accessibility, and scalability across the company. Collaborate closely … Lambda, S3), Docker, CI/CD, serverless architecture Frontend development: e.g. JavaScript/TypeScript, React, Dash, or similar frameworks Backend APIs: FastAPI, Flask, RESTful API design UI/UX design for data tools (e.g., streamlining internal workflows and dashboards) Experience with energy systems modelling/optimisation, quantitative More ❯