376 to 400 of 453 API Design Jobs

Principal Cloud Architect: Agentic AI & AWS

Location
Greater London, England, United Kingdom
part of WPP, seeks a Principal Technical Architect to own the design and quality of robust cloud applications and agentic AI platform components. You will lead workshops, govern technical standards, and mentor teams across AWS-based solutions. The role emphasizes hands-on delivery, API design ...

Hybrid API Engineer - Cloud & Telecoms

Location
Belfast City District, Northern Ireland, United Kingdom
VanRath is recruiting on behalf of a Belfast-based telecommunications and technology organisation for an API Engineer to join their growing technology team. You will design, develop and maintain robust APIs and backend services to enable internal platforms, customer systems and third-party applications to communicate effectively. … will work closely with technical teams and stakeholders across the full development lifecycle, including API design, development, testing, deployment, monitoring #J-18808-Ljbffr ...

Senior Software Engineer, Live

Location
Manchester, England, United Kingdom
feature or project simply because that problem needs to be solved and shipped. But that individual must work together with different engineering teams, UI design, product teams, and business leadership to make things happen, which means that engineers succeed here because they can maintain that independent spirit and motivation … What you’ll be doing Develop core features of the Roku Channel app and Roku OS. Work closely with Product Development, UI/UX design, Platform Services, and Release Management teams to contribute to our application development. Investigate, diagnose and resolve issues. We’re excited if you have Experience ...

Senior Software Engineer, Subscriptions

Location
Cambridge, England, United Kingdom
What you’ll be doing Develop core features of the Roku Channel app and Roku OS. Work closely with Product Development, UI/UX design, Platform Services, and Release Management teams to contribute to our application development. Investigate, diagnose and resolve issues. We’re excited if you have Experience … Experience writing functional integration and unit tests. A good understanding of Core OS concepts like memory management and multi-threading. A good understanding of API design, considerations and trade-offs. Strong verbal and written communication skills (this role involves frequent communication with teams throughout Roku). Consumer electronics ...

Hybrid Mobile & Web Apps Developer - API & Cloud

Location
Greater London, England, United Kingdom
role combines web and mobile development to deliver secure, scalable digital products that align with a modern digital strategy. You will work across product, design and engineering teams to build customer-facing applications and integrations. The position involves the full SDLC, API design and delivery ...

Senior iOS Engineer II - Account Mobile

Hiring Organisation
Wise
Location
Greater London, United Kingdom
Employment Type
Full Time
Wise Account users. Collaboration is key to how we operate across the business in this role, and you will work alongside product, design, and analytics teams to create the best tools for our users, helping them manage their cross-currency needs with ease whilst shaping the Wise Account offering. … build consistent experiences across Wise’s native applications and the web and enable features with a customer centric focus. Collaborate closely with product, design (UI), analytics, and other teams across the company to deliver impactful experiences to Wise users as part of a cross-functional team. Take responsibility ...

Principal Embedded Software Engineer I

Location
Milton Keynes, England, United Kingdom
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 ...

Android Software Engineer III - Jetpack Compose & API Design

Location
Greater London, England, United Kingdom
work on full-stack challenges across platforms and devices. The Platforms and Devices team builds computing software platforms and first-party devices; we design and develop technologies to make user interactions faster and more seamless worldwide. #J-18808-Ljbffr ...

Senior Infrastructure Engineer — GPU & Bare-Metal Automation

Location
Greater London, England, United Kingdom
automation that support our large-scale GPU and bare-metal infrastructure for AI/ML workloads. This role requires strong Python and Linux expertise, API design, and automation for provisioning, monitoring, and lifecycle management. You will collaborate across Networking, Data Center Operations, and Platform Engineering to scale ...

Senior Scala Engineer - Hybrid (London) SC Cleared

Location
Greater London, England, United Kingdom
designing scalable, secure systems and collaborating with product and data teams across CIP to realise software solutions. The position expects experience with Scala, API design, AWS, and data analysis, in a lean, agile environment, with an emphasis on maintainable code and incident response in outages. #J-18808-Ljbffr ...

Principal Backend Engineer - Hybrid, Azure & AI-Driven APIs

Location
Greater London, England, United Kingdom
lead technical delivery in a hybrid setup with Central London participation. You will stay hands-on in core backend work while guiding teams across API design, integrations, and event-driven systems, using C#/.NET, Python and Azure. You’ll influence architectural direction, collaborate with stakeholders, and help ...

Lead Server Architect & Technical Coach

Location
Salford, England, United Kingdom
seeking an experienced Lead Server Engineer to set the server-side direction for client projects while staying hands-on. You will lead engineers, own API design and infrastructure, and partner with architects to shape scalable, secure solutions. Collaboration with cross-functional teams, clients, and bids will be routine ...

Staff Robotics Engineer

Location
Greater London, England, United Kingdom
sensor data and hardware-accelerated pipelines, with the ability to optimise constrained compute and memory systems without losing correctness or debuggability. Strong software architecture, API design, testing, debugging and performance-profiling skills, with evidence of end-to-end ownership and effective cross-functional collaboration. Desirable Experience in visual ...

Node.js Developer – APIs, Microservices & Cloud

Location
Greater London, England, United Kingdom
Solirius Reply is seeking an experienced Node Developer to join our team in delivering robust back‐end services. You will design, implement, and maintain server‐side applications and APIs, while collaborating with front‐end teams to ensure seamless user experiences. The role emphasizes strong JavaScript/Node.js skills, APIdesign, and cloud familiarity, with opportunities to work across modern stacks and devops practices. #J-18808-Ljbffr ...

Product Manager

Location
Greater London, England, United Kingdom
from discovery through to production Move quickly from concept to working prototype, using AI‐assisted tooling to test ideas rather than only writing specification Design and govern AI agents within your product surface, defining what they can and cannot do, and holding the quality bar for their outputs. Build … systems that surface customer and market insight on demand, synthesising support data, user behaviour and market signals. Make system‐level product judgements — API design, data models and integration patterns — not just feature decisions. Connect product decisions to measurable business and customer impact, and stay close to what ...

Lead Software Engineer

Location
Ellesmere Port, England, United Kingdom
solutions that meet client needs. Technical Leadership: Champion the practical use of AI tools and technologies across our development practices. Provide leadership in the design, development, and deployment of software applications. Lead system design and architecture discussions to build scalable and robust systems. Drive best practices across … software engineering team, ensuring adherence to coding standards, design patterns, and performance optimization. Mentor and guide team members, promoting technical excellence and continuous improvement. Identify and evaluate opportunities to improve existing code, technical standards and ways of working. Take accountability for the accuracy of estimates, on-time project delivery ...

Remote Full-Stack Engineer (PHP/React) | Flexible Hours

Location
United Kingdom
Feedinkoo is seeking a Full Stack Engineer with 4+ years of experience to design and implement features while ensuring high code quality. The role is remote but requires UK timezone overlap. The candidate should be proficient in PHP and React, with strong experience in REST-API design ...

AI‐Native Engineering Lead – Open Banking & Hybrid

Location
Greater London, England, United Kingdom
Yapily is seeking an experienced Technical Software Engineering Lead to drive design, development and delivery of core microservices. You will blend hands-on coding with architectural oversight and people leadership to enable an AI-enabled engineering culture and faster developer velocity. You will own architectural decisions, shape APIdesign, ensure system health and collaborate with Product on capacity planning and strategy while mentoring ICs and guiding teams through complex engineering #J-18808-Ljbffr ...

AWS Software Engineer (Node.js/TypeScript)

Location
Nottingham, England, United Kingdom
will work closely with product, platform, and DevOps colleagues to deliver scalable backend services and infrastructure, owning your work end-to-end from design through to deployment and monitoring. Note this role is based in Nottingham and you will need to travel into the office 3 days a week. … Responsibilities: Design, build, and maintain serverless applications using AWS Lambda, API Gateway, DynamoDB, S3, SQS, and SNS. Write clean, maintainable, and well-tested TypeScript and/or Node.js code across microservices and event-driven workloads. Own the full development lifecycle of features: requirements, design, implementation, testing, deployment ...

Software Engineer

Hiring Organisation
Platform Recruitment
Location
City of London, Greater London, United Kingdom
Employment Type
Permanent
Salary
£90000 - £160000/annum
heavily backend-biased position but given the size of the team you will be working across the stack when needed Build scalable, performant systems Design and deliver end-to-end features with direct impact on customer value Work with product and ML teams to help translate abstract and complex … software function About you: Strong ability across scalable and performant systems You have a product mindset Statically typed language expertise Experience with API design Low ego and love of engineering Full details are available. Please don't hesitate to reach out for more information. ...

Product Manager

Location
Greater London, England, United Kingdom
will have ownership and autonomy from Day One. There is no corporate ladder at Arondite. From your first day, you will directly influence the design, functionality, and direction of Arondite’s product offering. We hire the best people and give them extremely high levels of autonomy … synthesising their feedback Building a clear, explainable process for prioritising work in the face of B2G uncertainty Communicating to and working with Engineering and Design to build powerful, simple features that can be customised to deliver value to a wide set of users Championing a culture of technical excellence ...

Senior Mobile SDK Engineer — Build Scalable Game SDKs

Location
Greater London, England, United Kingdom
engineer to build and evolve the SDK that ships inside our customers' games. The role is SDK work, not app work, with ownership from API design to live support. Based in-office (hybrid model) in London or Ljubljana, Slovenia. You will own the public API surface across ...

Software Engineer, Core Networking & Bolt Protocols

Location
Greater London, England, United Kingdom
Networking Engineering Team. You will work on the Neo4j network server modules, drivers, and binary protocol Bolt, shaping connectivity with Neo4j and drivers. Expect design leadership, implementation work, and chances to engage with the community. The role emphasizes 5+ years in Java, network development, and API design ...

Senior Backend Engineer - Graph Analytics & AI (Remote)

Location
United Kingdom
Neo4j is seeking a Senior Software Engineer to shape the core intelligence of GraphAware Hume, our graph-powered analytics platform. You will own API design, security, and scalable data workflows in a remote-first team. Join a world-class engineering group across Europe, contributing to architecture decisions ...

Senior Azure Integration & Solutions Architect

Location
West of England, England, United Kingdom
standards guiding how data flows, secures and scales across complex transformation programs. You will combine consulting experience with hands-on Azure Integration Services and API design to shape future-state architectures and guide project teams toward reusable, maintainable solutions. #J-18808-Ljbffr ...