19 of 19 Permanent API Design Jobs in the South East

up—within a startup-style venture backed by the strength and stability of an established business. Key Responsibilities End-to-end development of high-quality, scalable SaaS platforms from design through deployment and maintenance. Architect and implement robust backend services primarily using Python and PostgreSQL. Develop and maintain responsive, performant front-end applications with TypeScript and modern frameworks (e.g. … development productivity and platform capabilities. Provide technical mentorship and leadership to development teams, fostering best practices in coding, testing, and deployment. Participate in code reviews, architecture discussions, and system design decisions. Troubleshoot and resolve complex technical issues across the full stack. Ensure software security, scalability, and performance are maintained at all times. Keep abreast of emerging technologies and industry … Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. Strong understanding and practical application of 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 ❯

using an Agile development methodology. The architecture is Microservices with CI/CD pipelines to accelerate delivery of our application. You will be playing a critical role in the design, implementation, innovation and future support of Once For All's next generation Supplier Risk Assessment platform, hosted on Microsoft Azure. Candidate Requirements: Outstanding C# programming skills. Strong SQL Server … SQL Programming skills. Good understanding of Web Services protocols such as REST and API design. Experience designing and maintaining highly scalable systems with high availability. High scalability projects involving cloud-based infrastructure design and implementation, ideally Microsoft Azure. Excellent problem solving and analytical skills, with proven experience of requirements gathering and translating requirements into technical deliveries. Ability to … work in a fast-paced, Agile environment. Excellent knowledge of object-oriented design and development skills - Proven experience with Microservices and Message Bus Technologies. Knowledge, Skills, Experience and Qualifications: Experience with DevOps, Git, Build Pipelines. Docker and Kubernetes. Ability to be a design authority to less experienced developers and perform peer reviews. -Understanding of industry IT Direction (Open 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 ❯

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 ❯

per year Requirements Approximately 5 years of back-end development experience using Kotlin or modern Java Expertise in microservice architectures and frameworks like Spring Boot Deep understanding of RESTful API design and integration Experience with Agile methodologies (Scrum or Kanban), TDD, and pair programming practices Experience with CI/CD pipelines and automation tooling Knowledge of Docker, Kubernetes More ❯

titles Competitive salary and benefits Working as part of the DTL Team to ensure the implementation of the Dovetail Live roadmap Champion the development of the Dovetail Live backend API services across the entire lifecycle: Design, Development, Documentation, Testing and long-term Support Work closely with game development teams in providing in-game online functionality Work with teams … Professional experience with relational databases and ORMs Good software engineering skills, with an ability to program clearly, efficiently Strong understanding of, and experience in, server-side web development including: API Design and Development, Security Best Practices, Performanceoptimisation, Service-Oriented Architecture Experience with, or willingness to learn: NodeJS, TypeScript and the NestJS framework, BDD, using CucumberJS and Gherkin, Unit More ❯

line management and performance reviews Addressing 3rd line support issues and acting proactively to reduce support requests Resolving conflicts within the internal and/or wider teams Producing detailed design and documentation Running Jira and Agile ceremonies Working with the product manager to plan sprints and prioritize workload for team members Build and maintain robust, secure, and maintainable software … e.g. JPA/Hibernate). Relational Databases like MSSQL, PostgreSQL or MySQL. Others: Git, REST APIs, Docker, CI/CD pipelines, testing frameworks. Solid understanding of RESTful services and API design. Strong understanding of software design principles (SOLID, DRY or Clean Code). Comfortable navigating and maintaining legacy systems when needed. Experience writing unit and integration tests using 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: £95,000 +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 … 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 ❯

architecture, and delivering meaningful impact in data-driven transformations, this is an opportunity to lead from the front. Key Responsibilities Lead complex agile consulting projects focused on data architecture design and delivery Advise technology leaders on modern best practices in data management Develop cloud-based enterprise data platforms using AWS, Azure, or GCP Define services and frameworks that enable … management, automation, and network architecture Tech Domains Cloud Platforms: AWS, Azure, GCP Data Management: Metadata tools, privacy frameworks, security architecture Modelling: ER, Contextual, Semantic, Logical/Physical Orchestration & Integration: API design, DevOps support, cloud-native workflows Why Join? Work on high-impact transformation projects with top-tier global banks Join an agile, innovation-focused culture with flat structure More ❯

be working closely with your 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 quality & automation test coverage. Primary … efficiencies, improvements, challenges, remediation needs 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 feasibility and high-level effort … technology adoption and framework improvement, 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 processes Preferred: experience with managing More ❯

be working closely with your 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 quality & automation test coverage. Primary … efficiencies, improvements, challenges, remediation needs 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 feasibility and high-level effort … technology adoption and framework improvement, 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+ years of experience leading software More ❯

databases.You'll need working experience with scaled software architecture & domain: performance, redundancy, failover, clustering etc. You'll also need working experience with source code management patterns and proficiency in API design, development & production.They are embracing AWS here, so previous experience in the Cloud and working with pipelines and containers will serve you well. Same goes for an appreciation More ❯

of Radar Live SaaSto high-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 with hands-on development, following … The essential skills/experience 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 Azure, Cloud and SaaS technologies. Experience with Kubernetes, docker and microservice development/deployment. Experience with More ❯

Solution Architect | API Design | Client-Facing | Hybrid (2 Days Onsite in Central London) | £105,000-£110,000 + 15% Discretionary Bonus Method Resourcing is thrilled to be partnering with a global leader in the travel industry who are hiring a Client-facing Solution Architect to join a high-performing architectual team. This is a brand-new role, created … role that balances strong software knowledge with excellent stakeholder management and communication. What you'll be doing: Lead client-facing solution architecture discussions - mapping technical needs to platform capabilities Design and communicate system architecture diagrams, data flows, and API integrations Build prototypes and proof-of-concepts to test ideas and drive alignment Translate complex requirements into clear deliverables … for both technical and non-technical audiences Collaborate closely with internal engineering and product teams to ensure smooth handover and scalable design Skills and experience we are looking for: Strong software development background (any modern language or stack) Hands-on experience in solution architecture and API design Ability to build and communicate technical diagrams, flows, and documentation More ❯