51 to 75 of 93 API Design Jobs in England

work from home 1 day a week if desired. The salary on offer is £50,000-£62,000 DOE plus good benefits. Key Responsibilities • Design, develop, and maintain scalable web applications using modern frameworks and technologies. • Integrate Twilio APIs for voice, messaging, and video communication features. • Collaborate with product … command of JavaScript/TypeScript, Node.js, and React. • Proven ability to build and work with real-time, event-driven systems. • Solid grasp of RESTful API design and microservice architecture. • Hands-on experience with AWS serverless technologies including DynamoDB, Lambda, and API Gateway. • Familiarity with CI/ ...

eligible for SC clearance to be considered. The Role: You'll be part of a collaborative software engineering team, contributing to the design, development and maintenance of web applications using Python & JavaScript. You'll work closely with data scientists, analysts and delivery teams to build clean, scalable solutions whilst … commercial experience in Python & JavaScript. Practical experience with containerisation technologies, particularly Docker and Kubernetes, within a Linux-based environment. A strong grasp of RESTful API design and microservices architectures, with experience building scalable, maintainable services. Confidence working across SQL and NoSQL databases, with an understanding of data lake ...

fast-moving, product-centric environments. Key requirements: Ruby & Ruby on Rails Full-Stack Engineering: JavaScript, TypeScript, React, Hotwire, Stimulus Node.js & React exposure beneficial API Design: REST, GraphQL, external integrations Data Stores: PostgreSQL, MySQL, Redis, Elasticsearch Async Processing: Sidekiq, Resque Cloud & DevOps: AWS, Heroku, Docker, CI/CD pipelines … Testing & Quality: RSpec, Capybara, TDD methodologies Security, performance tuning, and system hardening AI & LLMs: API integration, prompt engineering, AI-enhanced features and developer tooling Responsibilities: Provides hands-on technical leadership to engineering teams (515 people), including mentoring, code review, and architectural direction. Owns end-to-end system architecture, ensuring ...

working on the underlying systems that make complex visualisations fast, accurate, and scalable. The challenges range from rendering performance and interaction design through to algorithms, graphics, API design, and numerical correctness. What you’ll be doing Designing and building core charting features used by developers around … exceptionally high technical standards High levels of ownership and autonomy Small team, significant impact Opportunity to deepen expertise in performance, graphics, visualisation, and systems design Package Salary up to £200,000 Hybrid working (London) Private healthcare Pension Additional benefits If you’re interested in building the technology behind modern ...

evolve our stack and make constant improvements. Required Skills/Experience Strong C# development experience Experience with both .NET Core and .NET Web API Experience of building Microservices in .Net Core Experience using Message Based Architectures Experience using both SQL & NoSQL technologies Experience of API design Cloud ...

evolve our stack and make constant improvements. Required Skills/Experience Strong C# development experience Experience with both .NET Core and .NET Web API Experience of building Microservices in .Net Core Experience using Message Based Architectures Experience using both SQL & NoSQL technologies Experience of API design Cloud ...

with a Global leader in industrial software who are looking for an Experienced Software Engineer to join their AI Services team. You will help design, develop, and scale AI-enabling platform services and public APIs that are secure, reliable, and cloud-native. You’ll need the following skills … experience: Extensive experience in software engineering, preferably in platform or cloud-native service development, using Microsoft and .NET technologies . Strong expertise in RESTful API design, versioning, testing, and lifecycle management. Proficient in securing APIs, managing authentication/authorization and data privacy practices. Hands-on experience architecting ...

exciting opportunity to use your experience supporting the Metropolitan Police contract. In this role, you will lead software engineering teams responsible for the design, development, and quality of applications and services. You will provide technical leadership and people management, ensuring engineering standards, best practices, and system integrity are consistently … date Managing interface changes and dependencies Maintaining traceability between ICDs and system requirements Collaborate with architects and technical leads on system design Ensure technical documentation is produced and maintained Support governance, compliance, and audit requirements Basic Qualifications Experience as a Software Engineering Manager or similar role Strong background ...

strong, recent, hands-on full-stack experience. You're genuinely capable across backend and frontend, not just one side. Engineering judgement: clean code, clear API design, sound data modelling, and the instinct to pick the simple, robust solution over the clever one. Shipped impact: features you owned …/TypeScript; relational databases (MySQL ideal) with SQLAlchemy/Alembic; comfort with AWS and Docker. Clear communication: most of our work happens in PRs, design docs and async decisions, so writing clearly matters. Roughly 6+ years building software in production. We read for depth and shipped impact, not years. ...

role, with strong backend expertise in Typescript and Node and front capability in React Proficiency in SQL, Redux, cloud services (AWS or GCP), RESTful API design and GraphQL Strong analytical skills with the ability to design, optimise, and troubleshoot complex UIs Excellent communication and leadership skills; ability ...

assisted development workflows. ● Agile Experience: Proven track record working within Agile teams and participating in iterative delivery. ● Core Engineering: Proficiency in Git, REST API design, and modern CI/CD practices This is a great opportunity to work for an exciting organisation and to start ASAP. The role ...

products (e.g., Concierge an agentic AI workflow tool, Prism a Mercer knowledge fabric for scheme data, and similar initiatives), from problem framing and design through build, release, and support. Translate risk advisory/consulting needs into clear technical requirements, user stories, and solution designs; partner with stakeholders through … Proven experience as a Tech Lead/Lead Engineer delivering production software, including hands-on coding and code review ownership. Strong backend engineering skills (API design, data modelling, performance) and experience building secure, role-based applications. Experience working directly with business stakeholders in a financial firm, with ...

improving APIs that support critical platform functionality Investigating production issues and tracing problems across distributed systems Working with product and engineering teams to design scalable solutions Improving reliability, observability and performance across existing services Reviewing code, sharing knowledge and helping raise engineering standards across the team Tackling real-world … APIs used by customers or internal teams Other Skills Needed: Solid backend engineering experience in C#, Java, or Go, with a strong grasp of API design and architecture. Hands-on experience managing and debugging production systems across cloud and self-managed infrastructure. Proven ability to navigate complex third ...

develop new features, enhance existing systems, and ensure our platform remains stable and efficient. Your deep understanding of Rails architecture, PostgreSQL optimisation, and API design will be essential as you contribute to ongoing development projects. If you enjoy collaborating in Agile/Scrum environments, value clean code ...

evolution of core Ruby on Rails operational platforms. Optimise PostgreSQL performance and Sidekiq background job efficiency. Manage secure third-party integrations and RESTful API design. Partner with Platform teams on AWS and CI/CD reliability. The Person: Deep experience with Ruby on Rails and OOP. Expert in PostgreSQL ...

testing processes. This role would suit someone who enjoys solving technical challenges and working across multiple layers of a modern embedded software stack. Responsibilities Design, develop, and maintain applications primarily in C++ Work within embedded Linux environments using Yocto or Buildroot Configure and optimise build systems using CMake Support … Linux build systems such as Yocto or Buildroot Strong experience with CMake Familiarity with CI/CD tools, ideally Jenkins Solid understanding of software design principles and testing practices Ability to work independently and proactively solve problems Nice to Have Experience with Docker or containerised environments Knowledge of networking ...

Fleet (UK) and Milan (Italy offices) for this role. Keysight is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~15,000 employees create world-class solutions in communications, 5G, automotive, energy, quantum, aerospace, defense, and semiconductor … solutions. This position sits at the intersection of protocol standards, software engineering, and system configuration APIs , within a multi‐site international environment . Responsibilities Design, develop, integrate, and optimize APIs for system‐level configurability . Validate 3GPP protocol configurations , with specific focus on RRC configuration . Support both ...

/Linux Software Developer for an initial 6 month contract Key Skills: Software Developer, Software Engineer, C, Linux, Autotools, LDAP, Active Directory, Terraform, OpenTofu, API Location: Hybrid but must be able to reach the office near Lymington - SO41 9AZ Rate: Negotiable Essential Skills Experience developing application code … equitant system initialisation frameworks and how they operate at a low level Understanding of secure configuration delivery and deployment auditability of newly provisioned systems API Design & Implementation (maybe): Experience/Familiarity with: Working with OpenAPI (Swagger) specifications to define service interfaces Implementing APIs in C or similarly ...

/Linux Software Developer for an initial 6 month contract Key Skills: Software Developer, Software Engineer, C, Linux, Autotools, LDAP, Active Directory, Terraform, OpenTofu, API Location: Hybrid but must be able to reach the office near Lymington - SO41 9AZ Rate: Negotiable Essential Skills Experience developing application code … equitant system initialisation frameworks and how they operate at a low level Understanding of secure configuration delivery and deployment auditability of newly provisioned systems API Design & Implementation (maybe): Experience/Familiarity with: Working with OpenAPI (Swagger) specifications to define service interfaces Implementing APIs in C or similarly ...

budget and quality requirements, and coordinating others as needed. Firmware Architecture and Lifecycle: Develop reliable, portable firmware with a long-life cycle. Firmware Development: Design, develop and maintain embedded firmware in C for Zephyr RTOS and Embedded Linux, including board bring up, drivers and HALs. Code Quality and Standards … another scientific subject. 8+ years of experience in embedded software development in C. A strong knowledge of Computer Science fundamentals in data structures, algorithm design, problem-solving, and complexity analysis. A strong grounding in embedded software architecture, with a focus on maintainability, modularity, fault-tolerance and testability. Confident ...

Knowledge Graph Architect 6 months Remote/London £Negotiable - INSIDE IR35 KEY SKILLS Neo4j schema design Ontology engineering Graph RAG API design Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ...

stuck into some genuinely interesting engineering. Think computational complexity, mathematical optimisation, and performance challenges at scale - a long way from your average API job. Requirements: 7+ years experience developing and maintain scalable Python/FastAPI back-end services Ideally worked with high-performance APIs for complex hierarchical data queries … code Lead technical planning by breaking down roadmap items into scoped engineering work, driving ADRs and setting standards for code quality, testing, and API design Collaborate cross-functionally with front-end, data engineering, modelling and product teams to deliver reliable, impactful features Line-manage a team ...

right solutions, in the right way, at the right time. What They’ll Do Own architecture and technical strategy for core domains and systems. Design, guide, and implement complex, cross-functional solutions spanning multiple areas of the product. Write high-impact code, including reference implementations, critical-path systems … Engineers will work on meaningful production challenges that combine physical systems, real-world constraints, and measurable impact, including: Heat loss modelling and hydronic system design 2D and 3D floor-plan tooling using LiDAR and computer vision Large-scale data ingestion and geospatial analysis Offline-first collaborative PWAs Hardware integrations ...

right solutions, in the right way, at the right time. What They’ll Do Own architecture and technical strategy for core domains and systems. Design, guide, and implement complex, cross-functional solutions spanning multiple areas of the product. Write high-impact code, including reference implementations, critical-path systems … Engineers will work on meaningful production challenges that combine physical systems, real-world constraints, and measurable impact, including: Heat loss modelling and hydronic system design 2D and 3D floor-plan tooling using LiDAR and computer vision Large-scale data ingestion and geospatial analysis Offline-first collaborative PWAs Hardware integrations ...

contract Technical Architect for a 4 month project (Outside IR35.) You will work closely with senior stakeholders and the wider team to provide architecture design and the integration approach between front end and backend systems.You will provide technical leadership and guidance throughout the project lifecycle, ensuring solutions are scalable … solutions.Strong background in front end, middleware and backend technologies for system integration.Strong understanding of cloud platforms (AWS, Azure, Google Cloud)Experience with microservices architecture, API design, and integration patterns.Experience with DevOps practices and tools. Please apply now to be considered for this role. ...