326 to 350 of 445 Permanent API Design Jobs

Front End Developer - Flights

Location
Greater London, England, United Kingdom
users You're excited to work with technologies such as React, NodeJS, TypeScript, React Hooks, Docker, Kubernetes Very good understanding of APIs design and platform performance. Experience with service oriented architecture. Experience with defining and upholding SLOs/KPIs. Experience with data-driven product development: analytics, A/ ...

Integration Lead

Hiring Organisation
Espire Infolabs Limited
Location
Lancaster, Lancashire, North West, United Kingdom
Employment Type
Permanent
Client as required Experience: 10+ years in enterprise integration Role summary You will be the Espire face of the Client account. You lead integration design and delivery on Azure APIM, own the relationship with LUs programme team and the Salesforce SI (Creation), and coordinate the offshore team. The role … hands-on and client-facing and needs someone confident in a politically complex university environment. Responsibilities Lead integration design, build and delivery across all in-scope systems (Student management system, Unit4, Kinetics Kx, Moodle and others) on Azure APIM. Be the primary Espire point of contact and run stakeholder ...

Backend Engineer: Scalable Rust/C++ API for AI Inference

Location
Greater London, England, United Kingdom
latency, and reliability across distributed systems. Familiarity with Docker, Kubernetes, and gRPC will be highly beneficial. You will own end-to-end responsibilities from API design to observability and scaling, ensuring robust deployment of billions of tokens per minute for developers worldwide. #J-18808-Ljbffr ...

Innovation Software Developer

Hiring Organisation
EOS IT Solutions
Location
Armagh, Co. Armagh, UK
Employment Type
Full-time
edge-to-cloud data flows using MQTT, CoAP, and related technologies. Build robust solutions capable of handling real-time and high-volume sensor streams. Design Modern APIs and ServicesDevelop secure, scalable REST and gRPC services using FastAPI, Flask, and Node.js. Implement authentication, authorization, observability, testing, and performance monitoring. Ensure … reliability, maintainability, and best-practice API design. Deliver Digital Twin ExperiencesIntegrate real-time operational data with advanced 3D and 4D visualizations. Work with OpenUSD, NVIDIA Omniverse, and Unreal Engine technologies. Create interactive digital environments that represent assets and processes over time. Integrate AI and Machine LearningEmbed AI/ ...

Web Developer

Location
Greater London, England, United Kingdom
technologies, ideally React/Redux and Typescript A solid understanding of real-time messaging on the Web, including low level protocol and API design Exposure to the following would be advantageous: RxJS, Webpack, Storybook & Websockets Knowledge of Java would be beneficial but is not a necessity Passion … Interaction design Strong communication skills Relevant academic qualifications, including a college degree in computer science or equivalent Some knowledge and experience within the financial industry #J-18808-Ljbffr ...

Senior Lead Software Engineer - Java & Python (Low-Latency)

Location
Greater London, England, United Kingdom
JPMorganChase in London is seeking a Sr Lead Software Engineer (Java/Python) to help design, build, and deliver high-performance trading software within Digital Markets Execution Technology. You’ll contribute as a core technical member of an agile team, guiding architecture, coding, testing, and operations to meet ambitious … objectives. The role emphasizes secure, observable, and resilient systems, with leadership in code reviews, API design, and deployment across distributed environments. #J-18808-Ljbffr ...

Senior Backend Engineer — Architect Scalable Microservices

Location
Greater London, England, United Kingdom
leading global marketing company is seeking a Senior Backend Engineer to design and develop scalable backend systems for their unified marketing platform. This hands-on role requires strong expertise in Python and modern development patterns, with a focus on performance, reliability, and observability. You will collaborate cross-functionally … influence best engineering practices within a hybrid work environment. Candidates should be skilled in API design, architecture patterns, and cloud technologies. #J-18808-Ljbffr ...

Staff Engineer Decision Support & Planning Optimization

Location
Bracknell, England, United Kingdom
apply deep expertise in Python or Java backend engineering to deliver durable, scalable outcomes. Lead and apply deep expertise in software architecture and API design to deliver durable, scalable outcomes. Lead and apply deep expertise in document ingestion and retrieval patterns to deliver durable, scalable outcomes. Lead … Angular awareness to deliver durable, scalable outcomes. Mentor and guide junior and mid-level engineers, fostering a culture of technical excellence and continuous learning. Design and implement comprehensive testing strategies, including unit tests, integration tests, and end-to-end validation for knowledge management systems. Establish and enforce security best ...

Principal Software Architect (UK)

Location
Greater London, England, United Kingdom
fraction of the cost of developing these systems independently. Backed by leading venture capital investors and engineering partners, we are rapidly scaling the design, production, and deployment of the satellites, ground systems, and network infrastructure that will power Meridian's next-generation constellations. Joining Meridian means working … part of a close-knit, collaborative team that thrives in a fast-paced, innovative environment, where your work directly advances the design, development, and deployment of satellite constellations that governments and enterprises around the world will depend on for secure, resilient, and sovereign connectivity. Your Mission on the Team ...

Principal Software Architect (UK)

Location
United Kingdom
fraction of the cost of developing these systems independently. Backed by leading venture capital investors and engineering partners, we are rapidly scaling the design, production, and deployment of the satellites, ground systems, and network infrastructure that will power Meridian's next-generation constellations. Joining Meridian means working … part of a close-knit, collaborative team that thrives in a fast-paced, innovative environment, where your work directly advances the design, development, and deployment of satellite constellations that governments and enterprises around the world will depend on for secure, resilient, and sovereign connectivity. Your Mission on the Team ...

Software Engineer, Backend

Location
Greater London, England, United Kingdom
building an automated lab that lets AI agents run biology experiments. We're entering the era of agentic science where AI models can now design novel proteins, propose hypotheses, and iterate on experimental results. But they can't run the experiments themselves - that's still a manual, months-long … biotech today. Our automated lab is powered by a deep software + hardware stack: lab instruments worth millions of USD reverse-engineered into API-controllable hardware, dozens of devices orchestrated through complex workflows, full observability on everything that happens in the lab, processing pipelines for messy physical-world data ...

VP, Engineering Engineering · London ·

Location
Greater London, England, United Kingdom
today Drive the evolution of the platform toward a modular, agentic-ready architecture - opening the platform to AI agents, decomposing the stack into clean API surfaces, and building the infrastructure that retailers and partners can build on top of Champion AI-native ways of working within engineering itself - agentic … market moves Engineering Leadership & Organisation Lead and develop the full engineering leadership layer - Directors, senior managers, and functional leads across platform & product engineering Design the engineering org structure to execute on the product roadmap, scale with the business, and attract and retain the calibre of people NewStore needs ...

Mission-Driven Product Manager - Own the Roadmap

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 ...

Contract Lead .Net Developer

Location
Greater London, England, United Kingdom
greenfield websites and digital applications from inception through to deployment. Drive the hands‐on engineering using modern .NET and C#, establishing robust coding standards, design patterns, and engineering best practices. Lead the implementation and integration of Optimizely CMS/DXP to power responsive, intuitive web experiences. Guide and mentor … .NET 6+) and C#. Strong commercial experience implementing, configuring, and extending Optimizely (formerly Episerver) CMS/DXP solutions. Solid understanding of modern web architectures, API design (RESTful services), headless setups, and cloud hosting environments (Azure preferred). Extensive experience working within Agile delivery frameworks (Scrum/Kanban), driving ...

Remote Senior Python Backend Engineer

Location
Greater London, England, United Kingdom
Webbyfox is a UK-based Python web development agency seeking a Senior Python Engineer to design, build and scale backend services powering our products. You will own services end to end—from architecture and API design to deployment and monitoring—and collaborate with product, data and DevOps ...

Senior iOS Engineer

Location
Havant, England, United Kingdom
product that blends artificial intelligence, aviation expertise, and seamless mobile user experience while partnering closely with our in-house designers. You'll turn complex design concepts into seamless, shippable code and help steer the future of our digital flight tools. What You’ll Do: Develop scalable, high-performance features … other core Apple frameworks (specifically MapKit or similar mapping SDKs) Experience integrating REST APIs, with enough backend understanding to troubleshoot issues and contribute to API design Strong understanding of iOS build systems, provisioning, certificates, and App Store requirements Strong proficiency in Git Bonus Qualifications: Bachelor’s degree ...

Senior Engineering Manager, AI/ML-Driven Travel Platform

Location
Greater London, England, United Kingdom
Expedia Group in London seeks a Senior Engineering Manager to lead the Hotels.com Technology team. You will guide design and delivery across high-traffic services, own API design and data models, and mentor engineers in a fast-moving, high-quality environment. You will stay technically hands … contribute to code reviews, and champion safe AI/ML adoption while partnering with product, design, data, and platform teams to drive value for travelers and partners. #J-18808-Ljbffr ...

Senior .NET Core Developer - Hybrid Role in Brighton

Location
Brighton, England, United Kingdom
C#, SQL, and modern architectures, migrating to .NET Core, with Azure DevOps for CI/CD and Elastic Stack for logging and analytics. Strong API design, event sourcing concepts, and experience with RabbitMQ are essential. #J-18808-Ljbffr ...

Senior Full-Stack Engineer - AI/ML Leader (Hybrid)

Location
Greater London, England, United Kingdom
quality software. The role blends hands-on development with stakeholder partnership and setting engineering standards. The position emphasizes frontend ReactJS/TypeScript, strong backend API design, DevOps, and practical AI feature integration. It offers hybrid work across offices, client sites, and home, with growth and wellbeing programs available. ...

Senior Software Engineer (£80k + benefits)

Hiring Organisation
Morson Edge
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£60000 - £80000/annum benefits
over how the platform evolves and will be given the opportunity to be involved in all aspects of the systems you work on, from API design and back-end architecture, through to deployment and supporting systems in production. Skills: • C#, .NET, PostgreSQL, React • AWS (S3, RDS, OpenSearch) • GraphQL ...

Principal Engineer

Location
Cambridge, England, United Kingdom
systems, or Engineering Extensive hands-on experience (10+ years) in software engineering within modern digital environments. Demonstrated expertise with cloud-native architectures, distributed systems, API design, and modern frameworks. Deep understanding of DevOps, CI/CD pipelines, and environment automation. Strong diagnostic and problem-solving skills for complex ...

Senior Engineering Manager (GenAI & Agentic Platforms) Location: London

Location
Greater London, England, United Kingdom
logic, and security, and establishing quality gates and safety nets for team workflows. Experience leading platform products, with a strong instinct for self‐service, API design, developer experience, adoption and avoiding unnecessary complexity. Clear communication and stakeholder leadership, with the ability to align teams with different incentives, make ...

Full Stack Engineer - AI & Cloud-Native (Azure)

Location
Greater London, England, United Kingdom
enabled capabilities. Ideal candidates have strong C#/.NET or Python skills, experience with React/Angular, and a solid background in secure, scalable API design. This role emphasizes collaboration with product stakeholders and cross-team delivery. #J-18808-Ljbffr ...

Staff Engineer, Global Billing & API Platform

Location
City of Edinburgh, Scotland, United Kingdom
Kaluza, the Energy Intelligence Platform, seeks a Staff Engineer to own API Platform and Standards for Global Billing, Payments & API. This hybrid role allows work from London, Bristol, or Edinburgh, with 3+ days in the office and a strong focus on scalable API design to enable rapid … growth in new markets. You will lead design, standards, and cross-team collaboration to ensure reliable, secure billing and payments capabilities at scale across our global platform. #J-18808-Ljbffr ...

Principal Engineer (AWS & Java)

Location
Nottingham, England, United Kingdom
changes, setting the standard for quality, performance, and maintainability. Provide hands‐on expertise in Java‐based systems, including concurrency, performance tuning, memory management, and API design. Non‐Functional Ownership & System Performance Take a leading role in defining, implementing, and validating non‐functional requirements, including system latency, throughput, scalability ...