1 to 25 of 39 API Design Jobs in the South East

protected veteran status. We are committed to building a supportive and inclusive environment for all employees. This is an office-based position. Responsibilities An API Architect leads the design of complex integration solutions, using deep technical expertise to shape high-performance systems. They play a key role in … ensuring that solutions align with broader organizational objectives. This role requires significant leadership in driving integration strategy across the enterprise. Job Responsibilities : Strategic Alignment: Design and lead the development of enterprise API architectures that align with business goals and objectives. Work with leadership and stakeholders to ensure APIs … align with organizational strategies and meet evolving business needs. API Design & Development: Lead the design of robust, scalable, and high-performance APIs that integrate multiple internal systems. Establish API development best practices, including design patterns, error handling, authentication, and security mechanisms. Drive the adoption of More ❯

drive technical excellence, establish coding standards, and optimise real-time services for a fast-growing platform. You’ll be responsible for backend architecture, microservices design, database management (SQL), and cloud integration (AWS) while collaborating with designers, engineers, and product teams to deliver world-class gaming solutions. Key Responsibilities ✔ Develop … Lead – Drive the development of scalable, interactive gaming products using Java (11+), Scala & Spring Boot . ✔ Microservices & API Design – Design and implement modular microservices architecture with 3-tier API design . ✔ Cloud & DevOps – Work within an AWS environment (supported by an in-house DevOps team … experience (currently using Java 21). ✅ SQL Database Proficiency – Strong experience with SQL databases (PostgreSQL preferred). ✅ Microservices & Cloud – Deep knowledge of microservices architecture, API design, and AWS . ✅ Spring Boot & Scala – Nice to have but not essential. ✅ Betting, Gaming, or Big Data Background – Experience in real-time 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. Key responsibilities … 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 ❯

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 ❯

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 ❯

to define target state architecture and roadmap. Transactional Banking Experience (Payments, Governance, Compliance) Proficient in defining the target state architecture, roadmap and high-level design for the assigned scope based on business outcomes and aligned with the bank's strategy. The target state architecture and solution should cover all … Proficient in Cash Management & Liquidity domain along with deep understanding of integration to Payments and Core Banking platforms. Proficient in Cloud Native Architecture, Microservices design patterns, API design, Event-Driven Architecture and Database concepts. Expected to have good understanding of monolithic to microservices migration. Responsibilities – Current state More ❯

business needs. The architect will create scalable, robust solutions and foster a culture of continuous improvement and technical excellence. Additionally, the Application Architect will design and manage technology solutions aligned with business needs, focusing on manageability, scalability, usability, resiliency, availability, security, and safety. They will determine coding standards, collaborate … in technology evaluations and standards committees. The architect will influence and optimize software architectures across the organization. What you will be doing: Lead the design and modernization of legacy systems to meet current and future business needs, with a strong focus on front-end and mobile development using Swift … and React Native. Ensure solutions are scalable, robust, and innovative, particularly in the context of mobile and web applications. Provide technical leadership on the design, development, and execution of software solutions, emphasizing user-friendly interfaces. Design and implement easy-to-use and intuitive user interfaces. Develop and use More ❯

Entertainments as we transform the future of digital guest experiences across our iconic global attractions. We’re seeking a talented Security Solutions Architect to design and deliver secure, scalable, and cloud-native microservices architectures that power engaging, seamless experiences for millions of guests worldwide. About the Role This is … microservices systems. Define service boundaries, orchestration strategies, and ensure architectural alignment with business goals. Champion best practices in security, performance, and cloud-native development. Design and implement solutions within AWS, Azure, or GCP environments. Establish CI/CD pipelines, containerisation strategies, and DevOps automation practices. Introduce and manage telemetry … Extensive experience designing and implementing enterprise-grade microservices architectures. Strong software development background (Java, .NET, Python) with architectural leadership. Deep understanding of microservices principles, API design, and domain-driven design. Proficient in cloud platforms (AWS, Azure, GCP) and modern DevOps tooling (e.g., Terraform, Jenkins, Kubernetes). Hands-on More ❯

to meet new challenges. About the Role: OQC are looking for a Senior Software Engineer to join our growing team, developing web-based/api-based solutions for a variety of challenges encountered by our partners and end-users. In this role, you will also develop and maintain critical … the work within a team. Strong understanding of common data structures and programming methods. Strong problem solving, troubleshooting and analysis skills. Demonstrated ability to design, develop, and test high-performance distributed systems. Technically versatile and able to learn new skills that you can apply across multiple types of work. … Experience with containerised microservices and deployment in global environment. Strong knowledge of API design, RESTful principles, and microservices architecture. Uphold development standards and prioritize best coding practices. Cloud solutions experience. Desirable skills and experience: Experience in building web applications and working knowledge of one or more of JavaScript More ❯

talented 3 Fullstack Engineers (React/Python) to join the growing team and contribute to the development of intelligent, scalable digital products. Key Responsibilities: Design, build, and maintain scalable fullstack web applications using React on the frontend and Python (Django/FastAPI/Flask) on the backend. Collaborate closely … and modern JavaScript (ES6+) or TypeScript. Proficiency in Python , ideally with experience in web frameworks such as Django, FastAPI, or Flask. Strong understanding of API design, microservices, and web architecture. Experience with relational and NoSQL databases (e.g. PostgreSQL, MongoDB). Comfortable working with cloud services like AWS, Azure More ❯

Type: Permanent Location: London/Hybrid Salary: £150,000-£200,000 (DOE) - Upto £300,000 Total comp Skills: Java, C++, Python, Low Latency, Microservices, API's, Functional programming, OTC, Crypto Assets Roc Search have partnered with a well established trading firm with over 30 years of experience bringing technology … many exchanges and regions using a wide range of strategies. As a member of the team, you will work with other software engineers to design and develop the full stack of software needed to enable a global trading operation. You are expected to design and develop trading systems … Responsibilities - Work as part of the cryptoassets team to establish and maintain best-in-class software systems that enable 24-hour, global trading operations - Design and develop full-stack software systems including trading systems, exchange connectivity solutions, and monitoring systems - Use multiple languages, including Java, C++, and Python - Testing More ❯

platform, responsible for the core services, APIs, and distributed processing backbone. This role requires a deep understanding of Python internals, Django architecture, and scalable API design, with a particular emphasis on multithreading, concurrency, and performance tuning. Key Responsibilities Lead the design and development of backend services using … including the Global Interpreter Lock (GIL), multithreading, multiprocessing, and asyncio Strong grasp of type hinting, generators, iterators, and Pythonic loop constructs Proven ability to design RESTful APIs for high-throughput, low-latency systems Experience with unit testing, integration testing, and test automation frameworks Solid understanding of PostgreSQL, Redis, and More ❯

integrate their applications into the system landscape, and on internal development projects to enhance existing integrations. The role will be responsible for introducing additional API management capabilities providing visibility of API statuses and enabling simple troubleshooting. What You’ll Do: 🔹 Design, build, and support scalable Azure-based … integrations (APIs, Logic Apps, AIS). 🔹 Lead the transition from point-to-point APIs to structured integration infrastructure. 🔹 Design, build and support reusable integration interfaces 🔹 Help define the integration strategy with the support of a senior team 🔹 Develop and enhance internal .Net applications, ensuring performance and security. What We … re Looking For: ✅ 3+ years of experience in Azure-based integrations. ✅ Strong background in .NET, ASP.NET, LogicApps, Boomi and Web APIs. ✅ Knowledge of RESTful API design, security, and versioning. ✅ Experience with D365 or other CRM/ERPs is desirable. This is a unique opportunity to play a key More ❯

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 More ❯

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 More ❯

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 More ❯

leading the implementation of technical solutions. These solutions are all SAAS based and require someone who is strong in and around the integration/API layer. Although still relatively "hands-on", the position lends itself to someone who is relatively agnostic in their approach who can steer best practice … around tech adoption. Tech : C# Azure IaC API Design and Development (REST) Devops mindset (Microservices/K8s) Excellent communication skills across Senior Stakeholders and various levels of software engineer Interview Process: 3 stages. Exploratory call with Lead Architect>>Tech test with subsequent discussion with wider team (F2F preferred More ❯

product managers, product owners, engineering leaders, your team and other stakeholders. You will be leading developers, quality engineers and partnering with CloudOps, TechOps, UX Design other cross-functional functional groups to evolve our solutions while continuing to improve your teams’ adoption of SDLC processes, CI/CD integration, code … Correlate, report, and drive the adoption of Process/Continuous Improvement initiatives Recruit & provide leadership, coaching & career planning for engineering talent Be accountable for design decisions for new and existing application development, proactively escalating issues and seeking assistance to overcome obstacles Partner with Product Management to consult on solution … analyzing trends, patterns and best practices for software Serve as the evangelist and custodian of technology, architecture, and product development practices Participate in the design & implementation of production cloud grade services supporting high availability Qualifications 5+ years of experience leading software engineers for product development Experience managing capitalized software More ❯

product managers, product owners, engineering leaders, your team and other stakeholders. You will be leading developers, quality engineers and partnering with CloudOps, TechOps, UX Design other cross-functional functional groups to evolve our solutions while continuing to improve your teams adoption of SDLC processes, CI/CD integration, code … Correlate, report, and drive the adoption of Process/Continuous Improvement initiatives Recruit & provide leadership, coaching & career planning for engineering talent Be accountable for design decisions for new and existing application development, proactively escalating issues and seeking assistance to overcome obstacles Partner with Product Management to consult on solution … analyzing trends, patterns and best practices for software Serve as the evangelist and custodian of technology, architecture, and product development practices Participate in the design & implementation of production cloud grade services supporting high availability Actively talent manage your team providing career planning & performance improvement activities when needed Qualifications 5+ More ❯

leading mobile-first development projects and designing beautiful, scalable frontend experiences? Are you ready to drive innovation in UI architecture, dynamic form building and API design? Why this role is great This is a hands-on leadership role in one of two key product teams delivering high-impact … mobile and web applications using Vue, React, React Native and Node.js Guide technical architecture across frontend and serverless components (AWS Lambda) Collaborate closely with design, product and backend teams to build robust, accessible, and high-performance interfaces Mentor engineers and drive quality through code reviews, best practices and process … collaborative mindset. You will bring: Excellent experience in frontend development, including Vue, React or React Native Experience with Node.js, ideally within a serverless or API-driven environment Solid understanding of modern UI architecture and frontend performance Exposure to AWS services, including Lambda, API Gateway and S3 The ability More ❯

ll lead a global team of 4-10 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 … 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 : 5+ years of experience leading software engineering teams 10+ years in software engineering, enterprise architecture … or DevOps Strong understanding of scalable system architecture, performance, and reliability Experience working with Microsoft SQL Server and managing production codebases Proficiency in API design and development Solid background in source code management and DevOps automation Desirable Skills: Experience managing capitalized software and team operational health (CapEx/ More ❯

ll Do Oversee data science projects, guide junior team members, and drive innovation. Build predictive models for campaign optimisation, customer segmentation, and price elasticity. Design and implement AI-powered solutions to solve complex marketing challenges. Use machine learning and statistical techniques to analyse trends and improve business outcomes. Work … Deep knowledge of media measurement techniques, such as media mix modelling. Experience with advanced AI techniques, including NLP, GenAI, and CausalAI. Familiarity with MLFlow, API design (FastAPI), and dashboard building (Dash). If this role looks of interest, reach out to Joseph Gregory More ❯

and monitoring of our portals for our customer administrators and internal configuration portal. The management team is highly experienced and collegial, with a strong design and code review culture. We encourage candidates with experience in browser technology areas to apply if you feel your skill set can be applied … including testing (Jest), build tools (Webpack), and UI/UX principles. Experience designing and implementing scalable web application architectures. Familiarity with RESTful APIs and API design principles. Experience with Agile development methodologies (e.g., Scrum, Kanban). Excellent analytical and problem-solving skills. Ability to provide technical guidance, perform More ❯

technology platform. This is an opportunity to be a part of a skilled, fun and exciting team, working on a live product. Key Responsibilities: Design, develop, and maintain scalable backend systems using Node.js. Collaborate with the product team to develop and refine the backend components of our web applications. … to-date. Required Experience: Tech: 3+ years experience in Node.js and SQL. A deep understanding of web application backend infrastructure. Solid understanding of RESTful API design and development. Experience with Python is preferred. Familiarity with cloud platforms. Qualities: A knack for identifying solutions and a relentless approach to More ❯

Looking For: Solid experience with Golang in production environments Experience working with distributed systems and scalable infrastructure Strong grasp of M icroservices architecture and API design Passion for clean, maintainable, high-performance code Comfortable working in a fast-paced, product-driven environment This is a huge opportunity to More ❯