1 to 25 of 45 API Design Jobs in the South East

to airlines, airports and ground handlers across 3 continents and 14 countries, serving over 20 airports with a diverse portfolio of products and services. Role and Responsibilities: Application Development: Design, develop, and maintain scalable web applications using the .NET framework and related technologies. Frontend & Backend Integration: Collaborate on both server-side and client-side architecture to deliver seamless, responsive … services. Cloud Services Management: Develop and deploy applications on AWS and Azure platforms, leveraging cloud services (e.g., EC2, S3, Lambda, Azure App Services) to optimize performance, scalability, and reliability. API Development: Create and integrate RESTful and SOAP APIs for internal and external consumption, ensuring smooth data interchange among multiple systems and third-party providers. Database Management: Design and … or ASP.NET Core) and related frameworks. Hands-on experience with modern frontend frameworks (e.g., Angular, React, or Vue.js) and proficiency in HTML, CSS, and JavaScript. Solid understanding of RESTful API design and implementation. Experience with SQL Server, and familiarity with NoSQL databases. Software Development Lifecycle: Knowledge of Agile methodologies and commitment to collaborative problem solving, efficient coding practices More ❯

Type: full-time Job Title: 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 Software Engineer you play an … in delivering new products and 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 deliver fully functional systems. Collaborate with UI/UX designers to create user-friendly interfaces More ❯

join a Business Banking Technology team within a leading Tier 1 financial institution. You'll play a key role in enhancing and scaling their digital banking platform. Key Responsibilities Design, build, and maintain robust, scalable applications using Java, Spring Boot, and Angular or React. Collaborate with cross-functional teams to deliver seamless end-to-end features, from user interfaces … Messaging: PostgreSQL, Oracle, MongoDB (optional) Kafka, Redis (for messaging and caching) Requirements Extensive experience in full-stack development with strong expertise in Java and Angular. Solid understanding of REST API design, microservices architecture, and cloud-native development. Hands-on experience with CI/CD pipelines, containerization, and infrastructure as code. Strong grasp of Agile methodologies and collaborative team More ❯

You'll Do: Build & Optimize Applications - Develop robust, scalable, and efficient web apps. Work Across the Stack - Frontend (React, Vue, or Angular) & Backend (Node.js, Python, Java, .NET). Database & API Development - Design and maintain SQL & NoSQL databases and RESTful APIs. Deploy & Maintain - Use Docker, Kubernetes, AWS, or Azure for scalable deployments. Collaborate - Work closely with product teams to More ❯

B2B marketing platform, Cylvy. It's a unique opportunity to help shape the future of marketing by rapidly translating strategic requirements into intelligent, scalable solutions. Key Responsibilities Solution Architecture: Design scalable, modular architectures for AI-driven marketing applications and microservices. Requirements Engineering: Gather, analyse, and translate business and marketing requirements into detailed technical specifications. AI-Assisted Development: Leverage AI … Git, CI/CD methodologies, and cloud services. MarTech Innovation: Research and implement AI solutions specifically targeting marketing use cases (content generation, audience analytics, personalisation). Data Pipeline Architecture: Design robust data flows between marketing systems and AI services. Technical Leadership: Provide strategic direction, mentorship, and best practices for AI implementation across the team. Documentation: Develop comprehensive technical documentation … Proven experience with AI-assisted development tools (e.g., GitHub Copilot, Amazon CodeWhisperer) and integrating large language models (LLMs) and AI APIs. Deep understanding of microservices architecture, Model Context Protocol, API design, and cloud platforms (GCP, Azure). Skilled in containerisation and orchestration (Docker, Kubernetes), version control (Git, BitBucket), and CI/CD pipelines. Strong foundation in software design More ❯

Key Responsibilities Vibe Coding & AI Tooling: Spend the majority of your time building and iterating using AI-first coding environments (Cursor, VS Code Studio, Copilot, etc.). Solution Architecture: Design scalable, modular architectures for AI-driven marketing applications and microservices. Requirements Engineering: Translate business and marketing needs into detailed technical specifications. AI-Assisted Development: Rapidly prototype and develop applications … using Docker, Git, CI/CD, and cloud services. MarTech Innovation: Research and implement AI solutions for marketing use cases like content generation, analytics, and personalisation. Data Pipeline Architecture: Design robust data flows between marketing systems and AI services. Technical Leadership: Provide strategic direction, mentorship, and best practices for AI implementation. Documentation: Create comprehensive technical documentation for systems and … Proven experience with AI-assisted development tools (e.g., GitHub Copilot, Amazon CodeWhisperer) and integrating large language models (LLMs) and AI APIs. Deep understanding of microservices architecture, Model Context Protocol, API design, and cloud platforms (GCP, Azure). Skilled in containerisation and orchestration (Docker, Kubernetes), version control (Git, BitBucket), and CI/CD pipelines. Strong foundation in software design More ❯

AWS, Azure, GCP) Proficiency in front end e.g., React, Angular, Vue.js and frameworks such as e.g., Node.js or FastAPI. Experience with databases such as MongoDB and MySQL. Familiarity with API design and development, including serverless technologies, e.g. AWS ECS/API Gateway/Lambda. A passion for space technology and a genuine interest in the space sector More ❯

sectors. Key Responsibilities: Full stack developer with around 8-10 years development experience, working in a agile development team to deliver robust enterprise-wide solutions utilising industry standard practices Design, develop, enhance and maintain applications using agreed coding standards and quality targets. Ensure quality via code reviews and thorough unit testing. Liaise with immediate scrum team, other scrum/… Experience and expertise with the following technical stack Angular 13+ with DevExtreme UI library desirable Playwright, ReadyAPI and Specflow. Jira, Github, Confluenc Nice to have - C# and .NET6+ Rest API's and Microservice architecture SQL Server Database, NHibernate or Entity Framework Demonstrate expertise of: Building modern-web applications Modern UI design principles. i.e. Able to take initial design direction and interpret those guidelines to finalise the design through to a solution Restful API Design and development fundamentals Good SQL knowledge Test case preparation and execution EDUCATION & EXPERIENCE REQUIREMENTS 8-10 years' experience designing and developing applications both individually and as part of a team Familiarity with energy or financial trading environment Strong inter-personal 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 ❯

on the hunt for 2 experienced Senior Machine Learning Operation Engineers to join our Data Function. You'll play a significant role within our Data Function, working on the design and implementation of machine learning model engineering frameworks, solutions, and best practices. You'll be technically proficient in machine learning and its applications; you'll demonstrate an understanding of … skills Ability to diagnose and troubleshoot problems quickly Excellent problem-solving and analytic skills Powering the business with the right tools What's involved: You'll contribute to the design and implementation of Machine Learning Engineering standards and frameworks. You'll support model development, with an emphasis on auditability, versioning, and data security. You'll implement automated data science … model testing and validation. You'll assist in the optimisation of deployed ML model scoring code in production services. You'll assist in the design and implementation of data pipelines and engineering infrastructure to embed scaled machine learning solutions. You'll use CI/CD pipelines, manage the deployment and version management of large numbers of data science models More ❯

will be required in the office 3 days per week. On a day to day basis you will find yourself working across the full software development life cycle including design/architecture. You will be involved in developing and maintaining Java based applications, APIs and backend services. You will be involved modernising legacy systems into a newer microservices architecture … basis to ensure you are delivering excellent service to the companies clients. Experience needed: Strong Java experience Solid understanding of OOP Experienced with Spring or Springboot frameworks REST APIs design and integration Familiarity with SQL and relational databases (MySQL/PostgreSQL) Agile Development Understanding and usage of CI/CD such as Jenkins Desirable: AWS (Aurora/Lambdas) Docker More ❯

will be required in the office 3 days per week. On a day-to-day basis you will find yourself working across the full software development life cycle including design/architecture. You will be involved in developing and maintaining Java-based applications, APIs, and backend services. You will be involved modernising legacy systems into a newer microservices architecture … basis to ensure you are delivering excellent service to the companies clients. Experience needed: Strong Java experience Solid understanding of OOP Experienced with Spring or Springboot frameworks REST APIs design and integration Familiarity with SQL and relational databases (MySQL/PostgreSQL) Agile Development Understanding and usage of CI/CD such as Jenkins Desirable: AWS (Aurora/Lambdas) Docker More ❯

will be required in the office 3 days per week. On a day-to-day basis you will find yourself working across the full software development life cycle including design/architecture. You will be involved in developing and maintaining Java-based applications, APIs, and backend services. You will be involved modernising legacy systems into a newer microservices architecture … basis to ensure you are delivering excellent service to the companies clients. Experience needed: Strong Java experience Solid understanding of OOP Experienced with Spring or Springboot frameworks REST APIs design and integration Familiarity with SQL and relational databases (MySQL/PostgreSQL) Agile Development Understanding and usage of CI/CD such as Jenkins Desirable: AWS (Aurora/Lambdas) Docker More ❯

will be required in the office 3 days per week. On a day-to-day basis you will find yourself working across the full software development life cycle including design/architecture. You will be involved in developing and maintaining Java-based applications, APIs, and backend services. You will be involved modernising legacy systems into a newer microservices architecture … basis to ensure you are delivering excellent service to the companies clients. Experience needed: Strong Java experience Solid understanding of OOP Experienced with Spring or Springboot frameworks REST APIs design and integration Familiarity with SQL and relational databases (MySQL/PostgreSQL) Agile Development Understanding and usage of CI/CD such as Jenkins Desirable: AWS (Aurora/Lambdas) Docker More ❯

strategy. Technical Evangelism: Serve as a champion for technology, architecture, and best practices in product development. Hands-on Development: Actively contribute to product development using the Microsoft tech stack. Design & Implementation: Participate in the design and implementation of highly available, cloud-grade production services. Strategic Partnership: Collaborate with Product Management on solution feasibility and effort estimation. Technology Adoption … and framework improvements based on trends and best practices. What You'll Bring: Experience: 5+ years in engineering leadership roles for product development, with 9+ years in software application design, development, and maintenance within a product environment. Microsoft Tech Stack Expertise: Expert proficiency in .NET, C#, ASP.NET MVC, and enterprise-scale Microsoft SQL Server (design, development, performance tuning … DevOps automation. Proficiency with Microsoft Visual Studio IDE and Azure DevOps. Architecture & Scalability: Working experience with scaled software architecture and domain concepts like performance, redundancy, failover, and vertical scaling. API Expertise: Proficient in API design, development, and production operations. Problem-Solving & Communication: Strong analytical, problem-solving, and communication skills, with the ability to translate technical concepts and More ❯

developing and integrating secure software systems used across government and defence. This role will require 1-2 days per week onsite in Milton Keynes, with the remainder remote. Responsibilities: * Design, build and test complex full-stack applications using Java and React * Develop secure software solutions, integrating open-source and proprietary technologies * Contribute to API design and system … React * Good knowledge of relational databases and both Linux and Microsoft environments * Familiarity with secure DevOps principles and containerisation tools (e.g. Docker) * Confident communicator with strong documentation and solution design skills * Analytical mindset with demonstrable experience solving complex problems * Degree in a technical or numerate discipline such as Computer Science, Mathematics, or Engineering Desirable experience: * Previous experience in public … high-impact public sector projects, we would love to hear from you. Keywords: Full Stack Developer, Java Developer, React Developer, SC Clearance, Public Sector IT, Secure Software, DevOps, Docker, API Design, Cloud Engineering, Defence Software, Agile Developer, Software Engineer Milton Keynes, Security Cleared Developer, Government Projects, JavaScript, Python, Open Source Integration. Established in Didsbury, Connexa Technology Ltd is More ❯

who wants deep technical ownership without people management responsibilities. Key Responsibilities: Build and maintain features using C#, ASP.NET Core, TypeScript, and Vue.js (or React/Angular) Own architecture and design of key systems and applications Develop scalable, secure, and maintainable solutions Collaborate closely with senior leadership on high-priority projects Mentor developers and promote engineering excellence Rapidly adapt to … changing requirements and business needs Requirements: Essential: Expert-level experience in full-stack development Strong knowledge of C#, ASP.NET Core, and modern JavaScript frameworks Proficient in SQL and API design Track record of architecting and delivering complex systems Ability to work autonomously in a fast-moving environment Desirable: Experience with Azure and Docker Familiarity with data visualisation or More ❯

including digital marketplace, inventory management, vehicle servicing, merchandising, and fleet ownership. Collaborative Environment: Work closely with engineering, product, technology, transformation, and business partners across the UK and Europe to design next-generation, customer-facing, software-as-a-service applications. What You'll Do: Lead and Innovate: Drive collaborative solutioning efforts to understand business needs, define target state architecture, and … and Implement: Define cloud-native architecture solutions and collaborate with Product and Engineering teams for their implementation. Guide and Mentor: Lead teams of experienced architects and delivery leaders, facilitating design discussions, driving technical design reviews, and ensuring successful delivery. Communicate and Influence: Articulate solution designs to all levels of the organization and drive successful delivery throughout discovery, development … or relevant industry experience. Technical Expertise: Strong software engineering background with hands-on experience in .NET, AWS, SQL & No-SQL databases, and event-driven systems. Proficiency in coding, REST API design, microservice implementation, and container technologies like Docker and Kubernetes. Interpersonal Skills: Excellent communication skills, both verbal and written, with the ability to work with technical and non More ❯

Lead Software Engineer – UK Remote | £80,000 to £85,000 | Hands-on Leadership in Scalable Systems w/API Design Are you a technical leader ready to guide a high-performing engineering team? Do you enjoy mentoring others while staying close to architecture and system design? Interested in shaping tools that support real-world infrastructure at scale … others grow. Why This Role is Great Lead a talented team delivering software that supports the installation, configuration and maintenance of distributed systems at scale Balance hands-on technical design with mentoring and team development Collaborate across product, cloud, QA and systems engineering to deliver robust solutions Contribute to technical strategy, system architecture and future roadmaps Create real value … backend software projects TypeScript or Node.js development, or similar backend technologies Designing and deploying services in a modern cloud environment Working with databases (SQL or NoSQL) and scalable system design Agile delivery and team collaboration Building for maintainability, performance and clear documentation Experience or interest in the following would also be valuable: Managing or supporting connected devices or remote More ❯

About the Job:In this contract role, you will design, develop, deploy, and document secure and functional APIs that integrate Employment Hero's HR and Payroll modules with third-party client platforms (such as timesheet and finance systems). You'll work day-to-day with our clients and partners, acting as the technical expert who architects API solutions based on client requirements and Employment Hero's documentation. You will manage the full API lifecycle, liaise with third-party vendors, contribute to solution design workshops, and ensure the integration meets performance, security, anddocumentation standards. Your work will make a direct impact by enabling clients to use automated HR and Payroll processes efficiently. Responsibilities and Duties … API Solution Design & Development Architect and implement secure, scalable RESTful APIs to integrate Employment Hero with external platforms Implement OAuth 2.0 and token-based authentication for API access. Manage the API lifecycle including testing, deployment, version control, logging, and monitoring. Use Python (e.g. FastAPI) and Azure services (e.g. Azure Functions, Microsoft Fabric pipelines) for development and More ❯

release and ongoing support. You'll lead a team of up to 5 software and test engineers, working in partnership with cross-functional groups including Product Management, CloudOps, UX Design, and others. You'll play a central role in ensuring high-quality, scalable, cloud-first solutions while continuously enhancing SDLC processes, automation, and DevOps maturity. Key Responsibilities: Lead and … hiring, coaching, and career development of team members Collaborate with Product Management on feasibility and estimation Champion DevOps and CI/CD best practices and drive automation Participate in design and implementation of cloud-grade, scalable services Required Experience : Experience with mentoring/leading a small team Strong hands on experience with coding and developing in C#/.net …/SQL Proficiency in API design and development Solid background in source code management Desirable Skills: Experience managing capitalised software and team operational health (CapEx/Opex) Familiarity with AWS cloud services and migrations Exposure to orchestration, automation, and configuration management tools What You'll Need to Succeed: A collaborative leadership style and strong communication skills High attention More ❯

release and ongoing support. You'll lead a team of up to 5 software and test engineers, working in partnership with cross-functional groups including Product Management, CloudOps, UX Design, and others. You'll play a central role in ensuring high-quality, scalable, cloud-first solutions while continuously enhancing SDLC processes, automation, and DevOps maturity. Key Responsibilities: Lead and … hiring, coaching, and career development of team members Collaborate with Product Management on feasibility and estimation Champion DevOps and CI/CD best practices and drive automation Participate in design and implementation of cloud-grade, scalable services Required Experience : Experience with mentoring/leading a small team Strong hands on experience with coding and developing in C#/.net …/SQL Proficiency in API design and development Solid background in source code management Desirable Skills: Experience managing capitalised software and team operational health (CapEx/Opex) Familiarity with AWS cloud services and migrations Exposure to orchestration, automation, and configuration management tools What You'll Need to Succeed: A collaborative leadership style and strong communication skills High attention More ❯

a particular area, there's room to grow and make a meaningful impact. This role also offers the chance to engage with the foundational aspects of software architecture - navigating API design, migrations, versioning, usability, backwards compatibility, and managing dependencies. If you've ever aspired to grow into a software architect, this is the kind of environment that makes … it real. You will: Work closely with engineering teams to design robust CI/CD pipelines for a large autonomy code base, whilst thinking about how we will manage and update those software systems in production. Understand and maintain the core libraries of our autonomy software, closely working with the team to triage and prioritise support requests. Review new … written and verbal communication skills to a variety of technical and less technical audiences. Extra kudos if you have: Experience with conan, the C++ package manager. Understanding of software design and architecture. Experience in mentoring junior software engineers. The Candidate Journey: Multi-Step and Two-Way No-one wants to feel like a square peg in a round hole More ❯

Solutions Architect (Integration | API Design) St Albans (Hybrid) Compensation: Salary +Bonus +Equity Method Resourcing are proud to be partnering with a fast-growing, international technology business delivering critical services across multiple high-reliability sectors. They're seeking a Solutions Architect to lead the end-to-end technical design of mission-critical platforms and services. The Role: We … re seeking an experienced Solution Architect to design scalable, secure, and efficient technology solutions that support a major systems consolidation and migration programme. You will be responsible for planning and documenting the decommissioning of up to 30 disparate systems, and overseeing their seamless migration to a new, unified platform - ensuring zero downtime throughout. In addition, you'll lead the … Review implementations to ensure compliance with technical standards Drive innovation through prototyping and evaluation of emerging technologies What We're Looking For: Proven experience in Solution Architecture or Solution Design, ideally in environments involving systems consolidation or major technology transformations Proficiency in cloud platforms, API development, message buses, DevOps practices, and languages such as C#, Python, or PHP More ❯

Primary Responsibilities: Develop and maintain server-side and client-side applications using React, TypeScript, Java, and Spring Boot, ensuring code quality, efficiency, and adherence to best practices. Design and implement scalable, clean architecture and maintain clean code standards. Role Highlights: Location: Hybrid - Reading, Croydon Type: Full-time Job Title: Java Full Stack Software Engineer We are seeking a talented … software solutions. Requirements: Proficiency in Java, Spring Framework, Spring Boot. Proficiency in HTML5, CSS3, TypeScript/JavaScript. Experience with front-end build tools and package managers. Experience with RESTful API design and implementation. More ❯