351 to 375 of 445 Permanent API Design Jobs

Mobile Engineer

Location
City of Edinburgh, Scotland, United Kingdom
both platforms with Flutter. Work closely with our QA department and the developer teams working on the individual games. Contribute to the design and architecture of new features and improvements for the mobile platform. Troubleshoot and debug complex issues, optimize code, and improve overall stability. Collaborate with other Rockstar … workflow. Strong experience with Flutter for UI/UX. Strong experience with Ruby for build automation. Strong CS fundamentals, including excellent understanding of OO design patterns and concepts. Experience with API design and development. Experience with source control, preferably Git. PLUSES Please note that these are desirable ...

Senior Consultant - Hybrid (Product / Transformation / Architecture), TC, FS

Location
Royal Borough of Greenwich, England, United Kingdom
build a better working world. Role highlights Early‐career hybrid who connects product, delivery and architecture. Shape stories, scenarios and NFRs with traceability to design/build. Support domain modelling and interface specifications for core programmes. The opportunity At EY, you’ll have the chance to build a career … Backlog shaping: user stories, scenarios, acceptance criteria and NFRs; maintain definition‐of‐ready/done. Architecture support: contribute to domain models, interface specs and API/event definitions; maintain requirements‐to‐build traceability. Delivery hygiene: reporting, risks/decisions, demos and release readiness; contribute to playbooks and templates. Continuous ...

Principal Software Engineer, Backend

Location
Greater London, England, United Kingdom
reference architecture for these services and are accountable for how fast and how reliably they run. You will write production code, make the hard design calls, and raise the bar for every backend engineer who joins after you. What you will own Our backend layer … reference architecture for these services and are accountable for how fast and how reliably they run. You will write production code, make the hard design calls, and raise the bar for every backend engineer who joins after you. Scope BFF services and their APIs to all clients. Integration with ...

Senior Node.js Backend Engineer — Remote, Lead API & Architecture

Location
Greater London, England, United Kingdom
Vista Global, the world’s leading business aviation company, is hiring a senior software engineer to own backend architecture and API design for scalable services. This permanent, full-time role offers a remote-first setup with strong autonomy and opportunities to influence product direction across global teams. ...

Full-Stack Data Obfuscation Engineer | AI & Security

Location
Glasgow, Scotland, United Kingdom
Morgan Stanley in Glasgow seeks a Full Stack Engineer (AI, Automation, and Data) to design scalable, secure data platforms and services for enterprise data protection. You’ll work across on-prem and multi-cloud environments, building resilient databases and full-stack applications with Java, Spring Boot, Angular, and Python. … Emphasis on AI, data masking, and automated workflows. Ideal candidates have 4+ years’ experience in complex data solutions, API design, and secure development practices, #J-18808-Ljbffr ...

Product Designer

Location
United Kingdom
know how to use tools like Claude to prototype fast and move quickly. Responsibilities Own frontend surfaces across all of pod's products. Design and implement scalable, real-time UI architecture for data-intensive and high-volume workflows. Build and maintain products including but not limited to order book … product intuition. Set and uphold frontend standards for performance, code quality, and developer experience. Collaborate with backend and protocol engineers on SDK and API design, and contribute full-stack improvements where needed. Contribute to tooling, testing infrastructure, and CI/CD practices. Qualifications Must-haves: Deep expertise ...

Senior Client Engineer - Stumble Guys

Location
Dundee, Scotland, United Kingdom
technical performance (crash rates, FPS, startup times, CPU usage, etc) is healthy throughout the development Collaborate and communicate with cross-functional departments including game design, product management, marketing, etc. Think about and propose solutions to the challenging problems of game development What We're Looking For Strong knowledge … Unity or a similar technology (like Unreal Engine) Knowledge of Photon Quantum is a plus Strong understanding of the basics of software engineering fundamentals: design patterns, game framework architecture at scale, maintainability over time, robust API design, etc. Solid understanding of mobile networking best practices: request limiting ...

Senior iOS Engineer II - Account Mobile

Location
Greater London, England, United Kingdom
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 ...

Staff Embedded Software Engineer

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 ...

Senior Laravel Developer

Location
United Kingdom
Senior Laravel Developer working on bespoke B2B platforms for UK and international clients. You will own features end-to-end — from technical design through deployment — within agile squads that demo weekly. Requirements 5+ years PHP/Laravel experience Strong MySQL and API design skills Experience with Livewire ...

Senior AI Engineer: Build Intelligent Validation & Automation

Location
United Kingdom
Senior AI Software Engineer to join a growing team delivering AI-powered validation and automation for connected products and digital services. You will design intelligent validation frameworks, build agent-based automation using MCP, and integrate foundation models with cloud platforms. The role involves API design, scalable architectures ...

Backend Software Engineer – Python/Flask (TimeKeeper)

Location
Belfast City District, Northern Ireland, United Kingdom
Group in Belfast is seeking a backend-focused Full Stack Software Engineer to strengthen the TimeKeeper platform. The role centres on Python-led development, API design and data layer work across web and mobile apps. You'll join a collaborative team, learn new tools quickly, and help build ...

Full-Stack Engineer

Location
United Kingdom
background job systems You ship: you take a feature from idea to production without waiting to be unblocked Care for detail in UI and API design alike Clear written communication in a remote team Nice to Have Experience with node-based editors, canvas UIs, or design tools ...

Senior Platform Engineer – Risk Services

Location
Greater London, England, United Kingdom
analytical requirements into scalable, maintainable software. Guide architecture, code reviews and engineering standards. What you’ll bring Strong production Python and backend engineering experience. API design, cloud services and containerised workloads. Job orchestration, message queues and SQL integration. CI/CD, monitoring, security and production troubleshooting. An understanding ...

Software Engineer, Non-Realtime Controllers

Location
Oxford, England, United Kingdom
across our fleet, contributing directly to the success of building utility‐scale quantum computers. Own a group of device controllers end to end, covering API design, implementation, rollout and ongoing operational health Make services robust against the ways real instruments fail and strengthen observability, health checking and alerting ...

Senior Python Backend Engineer — Remote, Scalable APIs

Location
Greater London, England, United Kingdom
scalable Python-based services and APIs that power millions of users across global markets. You’ll work with Python and Django/FastAPI to design robust server-side applications and high-performance APIs, collaborating with data scientists and infrastructure teams. The role focuses on distributed systems, data processing … API design, with opportunities to work on challenging problems and modern frameworks in a #J-18808-Ljbffr ...

Founding Backend Engineer for AI Infrastructure (SF)

Location
Cambourne, England, United Kingdom
FAANG or well-known VC-backed startups (Series A+) are desired. You will own projects end-to-end—from scoping customer requirements through system design to production rollout—while shaping API design and scalable backend systems in a hands-on role. #J-18808-Ljbffr ...

Product Lead

Location
Greater London, England, United Kingdom
experiences that feel inevitable. We ship constantly, make decisions with imperfect data, and act like owners. We think deeply about how people work together, design systems that scale, and remove friction before it’s felt – orchestrating every step toward value in lockstep with Design, Engineering … people work. What you’ll do Own core parts of the Attio product and contribute to overall product steering. Work with engineering to design systems that are simple to use but flexible and durable. Deeply understand the technical and user-facing implications of models, pipelines, and performance, making thoughtful ...

Senior Java Cloud Architect – Oracle CX & PaaS

Location
Greater London, England, United Kingdom
Situations Vacant Ltd in Greater London is seeking a Java Specialist to join our Oracle CX Cloud Practice, focusing on design, development and implementation of Java/J2EE solutions integrated with Oracle CX Cloud applications. You will work in a wider team to deliver elegant, scalable enterprise applications, mentor … peers, and contribute to architecture, API design and data modelling. A competitive salary and growth opportunities are offered on cutting-edge projects. #J-18808-Ljbffr ...

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 API … design, ensure system health and collaborate with Product on capacity planning and strategy while mentoring ICs and guiding teams through complex engineering #J-18808-Ljbffr ...

Process Orchestration Architect

Hiring Organisation
Capgemini
Location
Oxfordshire, United Kingdom
Employment Type
Full Time
contact the recruiter directly. Your role We are seeking an experienced Process Orchestration Architect with deep expertise in Camunda and Pega to lead the design and implementation of enterprise-scale process orchestration solutions. The ideal candidate will be responsible for architecting intelligent, intent-driven workflows, enabling automation across business … domains, and driving the adoption of modern orchestration frameworks aligned with TM Forum standards. This role requires a blend of solution architecture, process optimization, API design, technical leadership, and Agile delivery experience. Your profile 10+ years of experience in enterprise solution architecture, process automation, or workflow orchestration. 5+ ...

Senior Software Engineer, Full Stack, Java

Location
Belfast City District, Northern Ireland, United Kingdom
Stack Location: Belfast The Role We are seeking a Senior Full Stack Software Engineer (Java) to join TRG Screen’s engineering team. You will design, develop, and evolve backend services and frontend applications across our enterprise product suite — a hands‐on role that blends new feature development with improving … driven engineering organisation; this role is expected to use AI tooling by default across the full development lifecycle. Responsibilities Development & Delivery Design, develop, and maintain backend systems and frontend applications, including modernisation of complex, established codebases. Participate in the full SDLC — requirements analysis, design, implementation, testing, deployment ...

Senior Product Manager

Location
Greater London, England, United Kingdom
real time isn't a nice-to-have. It's mission-critical infrastructure. That's what we build. How We Work: AI-First by Design Harmonic exists to help enterprises adopt AI safely and at scale. We hold ourselves to that same standard. Everyone here actively leverages AI tools … determine where the benefits can be felt the most. Holding technical conversations with engineers, both ours and those at partners and customers, covering API design, authentication, and common integration patterns to understand how systems fit together and how they might break. Spending real time with existing customers ...

Staff Product Manager - Data Platforms - 12 month FTC

Location
Glasgow, Scotland, United Kingdom
governance at scale, and self-serve discovery so teams find and reuse trusted data rather than rebuilding it. You'll bring data engineering, API and platform engineering, data science, analytics, and data-producing teams together, and use evidence (usage analytics, cost data, and user research) to prioritise the work … clear product strategy across the platform's pillars (ingestion and transformation, trust and governance, self-serve marketplace, and AI enablement ) spanning both the API and analytical layers, and keeping it aligned with OVO's business goals and grounded in what data producers and consumers actually need. Measure and prove ...

Staff Product Manager - Data Platforms - 12 month FTC

Location
Greater London, England, United Kingdom
governance at scale, and self-serve discovery so teams find and reuse trusted data rather than rebuilding it. You'll bring data engineering, API and platform engineering, data science, analytics, and data-producing teams together, and use evidence (usage analytics, cost data, and user research) to prioritise the work … clear product strategy across the platform's pillars (ingestion and transformation, trust and governance, self-serve marketplace, and AI enablement ) spanning both the API and analytical layers, and keeping it aligned with OVO's business goals and grounded in what data producers and consumers actually need. Measure and prove ...