26 to 50 of 117 API Design Jobs in England

in Artificial Intelligence, Data Engineering, Data Analytics, and Software Development, the team is revolutionising the auditing process to deliver smarter, faster, and more reliable outcomes. Our mission is to design and implement robust, intelligent, and scalable technologies that not only streamline workflows but also enhance audit quality and generate actionable insights for auditors and clients. Through harnessing the power … Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good knowledge of generative AI, machine learning, deep learning, natural language processing or other relevant AI fields. Proven track record of designing, developing, and deploying AI systems in production environments. Proficient in Python and key ML libraries More ❯

in Artificial Intelligence, Data Engineering, Data Analytics, and Software Development, the team is revolutionising the auditing process to deliver smarter, faster, and more reliable outcomes. Our mission is to design and implement robust, intelligent, and scalable technologies that not only streamline workflows but also enhance audit quality and generate actionable insights for auditors and clients. Through harnessing the power … Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good knowledge of generative AI, machine learning, deep learning, natural language processing or other relevant AI fields. Proven track record of designing, developing, and deploying AI systems in production environments. Proficient in Python and key ML libraries More ❯

in Artificial Intelligence, Data Engineering, Data Analytics, and Software Development, the team is revolutionising the auditing process to deliver smarter, faster, and more reliable outcomes. Our mission is to design and implement robust, intelligent, and scalable technologies that not only streamline workflows but also enhance audit quality and generate actionable insights for auditors and clients. Through harnessing the power … Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good knowledge of generative AI, machine learning, deep learning, natural language processing or other relevant AI fields. Proven track record of designing, developing, and deploying AI systems in production environments. Proficient in Python and key ML libraries More ❯

in Artificial Intelligence, Data Engineering, Data Analytics, and Software Development, the team is revolutionising the auditing process to deliver smarter, faster, and more reliable outcomes. Our mission is to design and implement robust, intelligent, and scalable technologies that not only streamline workflows but also enhance audit quality and generate actionable insights for auditors and clients. Through harnessing the power … Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good knowledge of generative AI, machine learning, deep learning, natural language processing or other relevant AI fields. Proven track record of designing, developing, and deploying AI systems in production environments. Proficient in Python and key ML libraries More ❯

in Artificial Intelligence, Data Engineering, Data Analytics, and Software Development, the team is revolutionising the auditing process to deliver smarter, faster, and more reliable outcomes. Our mission is to design and implement robust, intelligent, and scalable technologies that not only streamline workflows but also enhance audit quality and generate actionable insights for auditors and clients. Through harnessing the power … Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good knowledge of generative AI, machine learning, deep learning, natural language processing or other relevant AI fields. Proven track record of designing, developing, and deploying AI systems in production environments. Proficient in Python and key ML libraries More ❯

a Senior Java Developer, you will play a key role in designing, developing, and maintaining enterprise-grade applications, while mentoring junior engineers and helping shape technical strategy. Key Responsibilities Design, develop, and maintain Java-based applications and services . Write clean, efficient, and well-documented code . Participate in code reviews and provide constructive feedback. Collaborate with cross-functional … teams to define, design, and deliver new features . Troubleshoot and debug complex issues. Required Qualifications Professional Java software development experience. Strong understanding of object-oriented programming and design patterns . Hands-on experience with Spring and Hibernate frameworks. Solid experience with relational databases (MSSQL, Oracle). Proven experience with RESTful API design and development . More ❯

for someone who thrives in a fast-paced, dynamic environment, takes ownership of their work, and is passionate about building high-quality software using modern engineering practices. Key Responsibilities Design, develop, and maintain high-quality integration microservices in Go, adhering to business and technical requirements. Translate complex business workflows into scalable technical implementations using a microservices-first approach. Develop … and Experience Commercial experience developing backend services using Go (Golang). Experience with Java or other object-oriented programming languages is also valuable. Strong understanding of microservices architecture, REST API design, and distributed systems principles. Experience with integration patterns, asynchronous processing, messaging queues (e.g., Kafka, RabbitMQ), and event-driven systems. Hands-on experience working with SQL databases, schema … design, and data transformation. Proficiency in containerization and orchestration tools such as Docker and Kubernetes. Familiarity with software development best practices including version control (Git), CI/CD pipelines, and Agile methodologies. Proven ability to quickly learn new technologies, understand business domains, and adapt to evolving priorities. Excellent problem-solving and debugging skills with a keen attention to detail. More ❯

to the maintenance of a clean, efficient codebase. Build across the stack: from low-code automations to polished React applications. Collaborate with business stakeholders to deeply understand problems and design solutions that improve efficiency. Explore and apply modern automation approaches, including LLM-powered agents. Contribute to the full software lifecycle: design, build, deploy, and support. Champion a mindset … of "improving how we build," both for team practices and developer experience. API Design and Development: Design and develop robust APIs with a strong emphasis on GraphQL. The right candidate: Adaptability in a Fast-Paced Environment: Thrives in dynamic settings and can quickly adapt to the evolving needs of the business. Comfortable with rapid changes and able … Experience with relational databases. Experience with Containers, Kubernetes, CI/CD, IaaC tooling, and Public Cloud platforms. Experience with graph databases and low & no-code tools. Familiarity with digital design tools such as Figma. Familiarity with schema first database development, especially with Prisma ORM. Experience with graph databases, such as Neo4j We believe in taking care of our staff More ❯

end systems and abstractions Implement performance improvements and engineering best practices Collaborate across multi-disciplinary teams to refine features and user journeys Participate in code reviews, architecture discussions, and design decisions Develop APIs and microservices to enable secure and high-performing functionality Play a key role in the ongoing journey to cloud-based infrastructure and deployment Writing modular, well … deep back-end development experience, ideally in large-scale environments Strong experience with Java and Spring Boot Familiarity with Node.js and React/AngularJS is beneficial Experience with microservices, API design, and event-driven architecture Strong knowledge of RESTful APIs, web services, and Git version control Solid experience with Docker or other containerisation tools Proven track record using More ❯

makes sense once processes are sound. Key responsibilities: Build across the stack: from low-code automations to polished React applications. Collaborate with business stakeholders to deeply understand problems and design solutions that improve efficiency. Explore and apply modern automation approaches, including LLM-powered agents. Contribute to the full software lifecycle: design, build, deploy, and support. Champion a mindset … of "improving how we build," both for team practices and developer experience. API Design and Development: Design and develop robust APIs with a strong emphasis on GraphQL. The right candidate: Adaptability in a Fast-Paced Environment: Thrives in dynamic settings and can quickly adapt to the evolving needs of the business. Comfortable with rapid changes and able … Experience with relational databases. Experience with Containers, Kubernetes, CI/CD, IaaC tooling, and Public Cloud platforms. Experience with graph databases and low & no-code tools. Familiarity with digital design tools such as Figma. Familiarity with schema first database development, especially with Prisma ORM. Experience with graph databases, such as Neo4j We believe in taking care of our staff More ❯

different stages of the Software Development Life Cycle including Requirements Elicitation, Application Architecture definition and Design. You will play an important role in creating the Architecture and high level design artifacts. You will also do technical feasibility and identify smart ways of completing client's requirement. You will guide the team technically and work closely with offshore team acting … and collaboration are encouraged, excellence is rewarded, and diversity is respected and valued. Responsibilities Define architecture and technical standards for Angular-based web applications and related component libraries. Architect, design and review .NET Core microservices (API design, messaging, resiliency, CI/CD) deployed to Azure (App Services, Containerization, Functions, Service Bus, Cosmos/SQL, APIM). Specify … native mobile app architecture patterns and guidelines for SwiftUI (iOS) and Jetpack Compose (Android), including shared data, offline sync, feature flagging, and CI pipelines. Own and evolve the design system: components, tokens, theming, versioning, and cross-platform implementation patterns. Ensure WCAG 2.2 accessibility compliance across web and mobile UIs; define test strategies and automated checks. Drive browser performance strategy More ❯

Solution Architect - TOGAF, Network and Security Design Exp at N Consulting Ltd About the Role We are seeking a highly skilled Solution Architect with strong expertise in solution design, system integration, and technical leadership. The role involves defining end-to-end architectures, leading complex projects, and ensuring alignment with business and technical requirements. The ideal candidate will have … strong stakeholder management skills, deep knowledge of industry standards, and a solid understanding of security and cloud technologies. Key Responsibilities Lead solution architecture and high-level design for complex, large-scale projects. Design and integrate APIs and system components ensuring scalability, reliability, and security. Provide technical leadership across cross-functional teams to drive system integration initiatives. Collaborate with … analysis for new and existing solutions. Ensure adherence to formal architecture frameworks and standards (e.g., TMF, TOGAF). Evaluate and recommend cloud-based solutions and emerging technologies. Apply security design principles to ensure compliance and risk mitigation. Support project delivery teams by providing architecture guidance throughout the solution lifecycle. Key Skills & Experience Proven experience in Solution Architecture and System More ❯

interact with complex data and models, while contributing to the growth and technical leadership of the engineering team. Key Responsibilities for Senior Full Stack Software Engineer Angular/Python Design, develop, and maintain responsive and performant Angular components. Develop and optimise backend services in Python (FastAPI), including REST API design and integration. Build interactive data visualizations (e.g. … data handling, and full stack integration. Hands-on experience deploying and operating cloud-native applications in GCP, including Cloud Run, Kubernetes, containerisation (Docker), and related tooling. Proven ability to design and deliver data-intensive applications with interactive visualizations. Experience with Git, CI/CD pipelines, automated testing, and agile practices. Excellent communication skills and a collaborative mindset. Nice-to More ❯

interact with complex data and models, while contributing to the growth and technical leadership of the engineering team. Key Responsibilities for Senior Full Stack Software Engineer Angular/Python Design, develop, and maintain responsive and performant Angular components. Develop and optimise backend services in Python (FastAPI), including REST API design and integration. Build interactive data visualizations (e.g. … data handling, and full stack integration. Hands-on experience deploying and operating cloud-native applications in GCP, including Cloud Run, Kubernetes, containerisation (Docker), and related tooling. Proven ability to design and deliver data-intensive applications with interactive visualizations. Experience with Git, CI/CD pipelines, automated testing, and agile practices. Excellent communication skills and a collaborative mindset. Nice-to More ❯

processing pipelines, and backend integrations with third-party services like Stripe, PayPal, and Open Banking providers. Key Responsibilities: Build and maintain robust RESTful APIs for mobile and web clients. Design and manage databases built in MongoDB and SQL Server to store, query, and aggregate user financial data. Develop data ingestion pipelines to process real-time and batch data from … a startup or SaaS environment). Proficient in .Net, Core 8, Razor Pages and Bootstrap 5 for UI. Experience with databases such as MongoDB and SQL Server, including schema design, indexing, and performance tuning. Familiarity with cloud platforms like Azure (we use Azure). Experience with containerization tools (Docker, Docker Compose) and deployment pipelines. Strong understanding of API design, versioning, and security (OAuth, JWT, API tokens). Comfortable working with Git, agile methodologies, and CI/CD practices. A good understanding of data protection, GDPR, and fintech security requirements. Nice to Have Exposure to event-driven architecture or message queues (e.g. Kafka). Experience integrating payment platforms like Stripe, PayPal, Plaid, or Open Banking. Exposure More ❯

processing pipelines, and backend integrations with third-party services like Stripe, PayPal, and Open Banking providers. Key Responsibilities: Build and maintain robust RESTful APIs for mobile and web clients. Design and manage databases built in MongoDB and SQL Server to store, query, and aggregate user financial data. Develop data ingestion pipelines to process real-time and batch data from … a startup or SaaS environment). Proficient in .Net, Core 8, Razor Pages and Bootstrap 5 for UI. Experience with databases such as MongoDB and SQL Server, including schema design, indexing, and performance tuning. Familiarity with cloud platforms like Azure (we use Azure). Experience with containerization tools (Docker, Docker Compose) and deployment pipelines. Strong understanding of API design, versioning, and security (OAuth, JWT, API tokens). Comfortable working with Git, agile methodologies, and CI/CD practices. A good understanding of data protection, GDPR, and fintech security requirements. Nice to Have Exposure to event-driven architecture or message queues (e.g. Kafka). Experience integrating payment platforms like Stripe, PayPal, Plaid, or Open Banking. Exposure More ❯

experienced engineer who enjoys solving complex problems, writing clean and efficient code, and mentoring others to uphold best practices in software engineering. You will have experience with – Backend Development: Design, develop, and maintain backend services using Node.JS Messaging & Asynchronous Workflows: Build and manage reliable messaging patterns using queues such as RabbitMQ and Pub/Sub patterns. Database Design: Develop efficient and scalable queries and schemas using PostgreSQL. API Design: Develop clean, RESTful APIs and contribute to internal and external API documentation. Containerisation: Aid in building services in containerised environments using Docker. Code Quality: Write testable, maintainable code and contribute to peer reviews, testing, and CI/CD pipelines. Who are we? CLEO Systems is More ❯

experienced engineer who enjoys solving complex problems, writing clean and efficient code, and mentoring others to uphold best practices in software engineering. You will have experience with – Backend Development: Design, develop, and maintain backend services using Node.JS Messaging & Asynchronous Workflows: Build and manage reliable messaging patterns using queues such as RabbitMQ and Pub/Sub patterns. Database Design: Develop efficient and scalable queries and schemas using PostgreSQL. API Design: Develop clean, RESTful APIs and contribute to internal and external API documentation. Containerisation: Aid in building services in containerised environments using Docker. Code Quality: Write testable, maintainable code and contribute to peer reviews, testing, and CI/CD pipelines. Who are we? CLEO Systems is More ❯

systems/subsystems and their interfaces while defining non-functional requirements. Collaborate with stakeholders and vendors to ensure solutions are fit for purpose and evaluate the impact of strategic design decisions. Lead the rapid shaping of high-level architecture while maintaining flexibility and modularity. Utilize best practices and templates to create comprehensive architectural designs. Work closely with Product Managers … to prioritize technology-focused backlog items. Clarify architecture for development teams and provide solution options for any challenges. Conduct design reviews to ensure all non-functional requirements are met, focusing on aspects such as security, performance, and scalability. What We're Looking For: To thrive in this role, you should have: Must Have - Domain knowledge in Corporate Payments and … familiarity with related areas such as Accounting Services and Liquidity Management. Proficiency in API Design, microservices, and integration platforms. Experience with Cloud Platforms (AWS, Azure, GCP). Knowledge of DevOps, CI/CD pipelines, and containerization (Docker, Kubernetes). A strong foundation in both Waterfall and Agile SDLC methodologies. Excellent coordination and communication skills to engage with business More ❯

systems/subsystems and their interfaces while defining non-functional requirements. Collaborate with stakeholders and vendors to ensure solutions are fit for purpose and evaluate the impact of strategic design decisions. Lead the rapid shaping of high-level architecture while maintaining flexibility and modularity. Utilize best practices and templates to create comprehensive architectural designs. Work closely with Product Managers … to prioritize technology-focused backlog items. Clarify architecture for development teams and provide solution options for any challenges. Conduct design reviews to ensure all non-functional requirements are met, focusing on aspects such as security, performance, and scalability. What We're Looking For: To thrive in this role, you should have: Must Have - Domain knowledge in Corporate Payments and … familiarity with related areas such as Accounting Services and Liquidity Management. Proficiency in API Design, microservices, and integration platforms. Experience with Cloud Platforms (AWS, Azure, GCP). Knowledge of DevOps, CI/CD pipelines, and containerization (Docker, Kubernetes). A strong foundation in both Waterfall and Agile SDLC methodologies. Excellent coordination and communication skills to engage with business More ❯

systems/subsystems and their interfaces while defining non-functional requirements. Collaborate with stakeholders and vendors to ensure solutions are fit for purpose and evaluate the impact of strategic design decisions. Lead the rapid shaping of high-level architecture while maintaining flexibility and modularity. Utilize best practices and templates to create comprehensive architectural designs. Work closely with Product Managers … to prioritize technology-focused backlog items. Clarify architecture for development teams and provide solution options for any challenges. Conduct design reviews to ensure all non-functional requirements are met, focusing on aspects such as security, performance, and scalability. What We're Looking For:To thrive in this role, you should have: Must Have - Domain knowledge in Corporate Payments and … familiarity with related areas such as Accounting Services and Liquidity Management. Proficiency in API Design, microservices, and integration platforms. Experience with Cloud Platforms (AWS, Azure, GCP). Knowledge of DevOps, CI/CD pipelines, and containerization (Docker, Kubernetes). A strong foundation in both Waterfall and Agile SDLC methodologies. Excellent coordination and communication skills to engage with business More ❯

Solid experience with Umbraco CMS (v13+ ideally) Strong C#, ASP.NET MVC/Core, and .NET framework skills SQL Server know-how and a good grasp of relational databases RESTful API wizardry and integration smarts Git fluency and Agile mindset A keen eye for SEO, accessibility, and performance Clear communication and documentation skills A curious mind and a can-do … also have Experience with Dynamics 365, MS Portals, Azure WebApps/Services Familiarity with cloud hosting, DevOps, CI/CD pipelines Automated testing and QA frameworks GraphQL or REST API design skills What else we're looking for You're organised, detail-oriented, and confident juggling multiple priorities. You thrive in a team, but you're not afraid More ❯

The team values clean code, automation, and continuous improvement—and they’re looking for someone who shares that mindset. Key responsibilities as the Senior Back-End Software Engineer are: Design and develop backend services using Node.js and TypeScript , deployed in a cloud-native environment. Build and maintain GraphQL and REST APIs to support a range of digital products and … technologies and bring innovative ideas to the team. Skills & Experience needed: Essential: Strong experience with Node.js and TypeScript Proven background in microservices architecture Solid understanding of GraphQL and RESTful API design Experience with SQL and NoSQL databases Familiarity with CI/CD, automated testing, and modern development workflows Desirable: Experience with Azure or other cloud platforms Knowledge of More ❯

The team values clean code, automation, and continuous improvement-and they're looking for someone who shares that mindset. Key responsibilities as the Senior Back-End Software Engineer are: Design and develop backend services using Node.js and TypeScript , deployed in a cloud-native environment. Build and maintain GraphQL and REST APIs to support a range of digital products and … technologies and bring innovative ideas to the team. Skills & Experience needed: Essential: Strong experience with Node.js and TypeScript Proven background in microservices architecture Solid understanding of GraphQL and RESTful API design Experience with SQL and NoSQL databases Familiarity with CI/CD, automated testing, and modern development workflows Desirable: Experience with Azure or other cloud platforms Knowledge of More ❯

have the opportunity to work across a modern engineering environment, collaborate with agile product teams, and contribute to a high-traffic platform used by millions of customers. Key Responsibilities: Design, build, and maintain scalable, high-performance services using Kotlin or Java Provide technical leadership and mentoring to other engineers in the team Contribute to solution architecture and strategic technical … Skills & Experience 5+ years of back-end development experience using Kotlin or modern Java Expertise in microservice architectures and frameworks like Spring Boot or http4k Deep understanding of RESTful API design and integration Proven experience mentoring engineers and contributing to high-performing teams Familiarity with Agile (Scrum or Kanban), TDD, and pair programming practices Experience with CI/ More ❯