API Design Jobs in the South East

1 to 25 of 27 API Design Jobs in the South East

API Architect

Winchester, Hampshire, United Kingdom
iPipeline
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 ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Back End Developer

london, south east england, United Kingdom
Haystack
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 ❯
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Lead Software Engineer

Reigate, Surrey, United Kingdom
Willis Towers Watson
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 ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Technical Analyst - Energy Transition

london, south east england, United Kingdom
Climate17 | B Corp™
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 ❯
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Mobile Application Architect (Hybrid)

Wokingham, Berkshire, United Kingdom
Hybrid / WFH Options
Bright Horizons Family Solutions, LLC
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 ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer IT Wimbledon, Portsmouth

Portsmouth, Hampshire, United Kingdom
Iglu.com
development as needed, contributing to critical parts of the project. Technical Leadership: Provide technical mentorship and support to junior members of the team. Architectural Design: Collaborate with lead to design and architect software solutions that meet business requirements and are scalable, efficient and maintainable. Quality Assurance: Establish and … and analytical skills. Excellent communication and interpersonal skills. Extensive experience of C#, MVC and SQL (.net framework and .net core). Extensive experience in API design and implementation. Experience working with frontend technologies such as Node, Typescript, React (or other frameworks). Experience creating and debugging containerised applications. More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer - Cloud

Reading, Oxfordshire, United Kingdom
Randstad (Schweiz) AG
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 ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Full Stack Engineer

london, south east england, United Kingdom
Explore Group
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 ❯
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Python Developer

london, south east england, United Kingdom
Sanderson
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 ❯
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Backend Developer Basingstoke, United Kingdom

Basingstoke, Hampshire, United Kingdom
EasyPark
familiarity with functional concepts. Experience with version control systems. Experience writing testable code. Good to Have Technical Skills Understanding of web application architecture and API design. Knowledge of event-driven architecture and message brokers like Apache Kafka, RabbitMQ, SQS, etc. Understanding of microservice architecture. Knowledge of CI/CD More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Sr. Java Software Engineer in London (Perm)

london, south east england, United Kingdom
Lithe Transformation
with tools like IntelliJ IDEA, Kubernetes, Docker, and AWS. Ability to learn new technologies quickly and adapt to different programming stacks. Experience with SQL, API design and JavaScript is beneficial, but not required. Strong collaboration and communication skills, with a focus on problem-solving as a team. Desire More ❯
Posted:

Software Developer

Reading, Berkshire, South East, United Kingdom
Hybrid / WFH Options
In Technology Group Limited
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 ❯
Employment Type: Permanent, Work From Home
Salary: £40,000
Posted:

Full Stack Developer

Brighton, East Sussex, South East, United Kingdom
Hybrid / WFH Options
In Technology Group Limited
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 ❯
Employment Type: Permanent, Work From Home
Salary: £50,000
Posted:

Technical Lead - Software Engineering

reading, south east england, United Kingdom
Akoni Technologies
orchestration (EKS/ECS). Experience with CI/CD pipelines, DevOps practices, and observability tools (monitoring, logging, tracing). Strong grasp of RESTful API design, security principles, and both SQL and NoSQL databases. Roles & Responsibilities • Technical Leadership Lead the architecture and performance of digital platforms, guiding development More ❯
Posted:

Software Engineering Manager

Maidenhead, Royal Borough of Windsor and Maidenhead, Berkshire, United Kingdom
WHD
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 ❯
Employment Type: Permanent
Salary: £75000 - £85000/annum
Posted:

Software Engineering Manager

Maidenhead, Berkshire, South East, United Kingdom
WHD Consulting Ltd
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 ❯
Employment Type: Permanent
Salary: £85,000
Posted:

Engineering Manager

Maidenhead, Berkshire, South East, United Kingdom
Hybrid / WFH Options
Spectrum It Recruitment Limited
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 ❯
Employment Type: Permanent, Work From Home
Salary: £85,000
Posted:

Principal Data Scientist

london, south east england, United Kingdom
Harnham
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 ❯
Posted:

Senior Frontend Engineer

Bracknell, Berkshire, United Kingdom
Menlo Security, Inc
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 ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Application Security Consultant

london, south east england, United Kingdom
Senitor Associates
the DevOps pipeline. This role is especially focused on cloud-native development in AWS environments. Key responsibilities include: Embedding secure coding practices and supporting design/code reviews Implementing SAST, DAST, SCA, and other security checks into DevOps workflows Supporting secure API design and cloud-native architecture … and hands-on threat modelling What you’ll bring: 3+ years in application or product security roles Strong grasp of application-level threats, secure design, and remediation strategies Experience with IaC security (Terraform, CloudFormation), container security, and AWS Clear communication skills and a collaborative approach More ❯
Posted:

Principal Embedded Software Engineer I

Milton Keynes, Buckinghamshire, United Kingdom
Roman Health Pharmacy LLC
systems. As a Cesium software team member, you will be responsible for software designs from concept through production, including product roadmaps, block diagrams, detailed design and coding, analysis, test, qualification, and in-orbit support. The ideal candidate will have development experience at nearly every level of the software stack … experience in software testing and high-reliability qualification, as well as software engineering and software project management practices. The successful candidate will present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills … new product designs. Supporting software quality assurance and optimizing I/O performance. Providing post-production/in-orbit customer support. Interfacing with hardware design and development engineers. Assessing third-party and open-source software. JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS A Bachelor of Science (BS) or Master of Science More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Backend Java Developer - Nenagh, Co Tipperary Based

Sussex, United Kingdom
Expleo
Overview As a Server Software Developer/Engineer, you will contribute to the design, implementation and support of features/functionality. You will collaborate with a team of engineers to design and build best-in-class experiences for our users. NOTE: This role will be 4 days a … years of experience in a backend Java development role. Strong understanding of relational databases and proficiency with a relational DB. Strong knowledge of RESTful API design. Excellent understanding and experience of Microservices with Spring Boot and Kubernetes. Experience/understanding of DevOps principles. Superior problem-solving skills and debugging More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Android Developer

Reading, Berkshire, South East, United Kingdom
Alfen Technology Ltd
Job Title: Android Developer API & Parser Integration (Contract) We're collaborating with a pioneering technology company that's leading the charge in device-to-mobile integration. Their current Android application is tightly coupled with proprietary hardware, focusing on parsing and displaying real-time data from the device. However, they … re now embarking on an ambitious new journey: decoupling the front-end and establishing an API-first ecosystem. This is where you come in. Your expertise will be instrumental in shaping this transition. You'll play a key role in rearchitecting the application, designing and implementing robust APIs, and … The goal? To allow external clients to build their own front ends using the data, while ensuring the app can also consume the same API internally. Youll also be working on updating and enhancing the core parser library that sits at the heart of the data flow. What Youll More ❯
Employment Type: Contract
Rate: Up to £450 per day
Posted:

Principal Software Engineer

Milton Keynes, Buckinghamshire, South East, United Kingdom
Belcan Technical Recruiting (UK) Ltd
board support packages and user interfaces. Additionally, expertise in software testing, qualification, engineering practices, and project management is essential. The successful candidate will present design reviews to customers and executives and contribute to proposal-writing efforts. Strong written and verbal communication skills are vital. Key Responsibilities: You will design … Electrical Engineering, or Computer Engineering, with 9+ years of industry experience in software development. You should have hands-on experience with embedded hardware and API design for FPGA interfacing. Proficiency in programming languages such as C and real-time operating systems, along with familiarity with tools for software More ❯
Employment Type: Permanent
Posted:

Security Engineer

Tunbridge Wells, Kent, United Kingdom
AXA UK
AXA, please apply promptly. What you'll bring: Engineering expertise in complex Salesforce environments. Experience with Cloud Native software development, including cloud infrastructure and API design (Azure preferred). Proven experience with modern standards such as OWASP CI/CD, DSOMM, SAMM. Strong networking protocol knowledge (TCP/… IP, UDP, HTTP/3, AMQP, streaming protocols) and cloud network design (VPNs, subnets, regions/zones), as well as integration technologies (Auth0, APIM). Expertise with SAST & SCA systems like Snyk and Checkmarx. Experience with DAST systems such as OpenZAP and Qualys DAST, preferably with HTTP APIs. Ability More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
API Design
the South East
10th Percentile
£26,750
25th Percentile
£51,875
Median
£62,500
75th Percentile
£66,250
90th Percentile
£79,750