101 to 119 of 119 API Design Jobs

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/ ...

AI Architect / Engineer (Agentic AI & LLM Architecture)

Hiring Organisation
Talan
Location
London, UK
Employment Type
Full-time
DescriptionAs our AI practice scales, we are seeking an experienced AI Architect/Engineer to act as the senior technical authority shaping how we design and deliver next-generation AI solutions. This is a role for someone who has moved beyond building individual models to architecting entire systems: agentic … ambiguous business problems into robust, deployable architectures. As engagements mature, you will provide the technical oversight that keeps delivery teams aligned to the original design intent. Your influence will be felt in pre-sales conversations, solution blueprints, and the technical standards that define how our practice builds. This ...

Principal Mobile Apps Platform Engineer

Hiring Organisation
AutoTrader UK
Location
Manchester, UK
Employment Type
Full-time
stand-ups ensure that our engineers stay connected and aligned. As a Principal Engineer, you'll play a visible, strategic role in driving system design and architecture decisions, mentoring team members, and helping our teams deliver high-quality solutions at scale for one of the UK's most used … least one of these platforms (Swift, Xcode, and Instruments for iOS; Kotlin, Jetpack, Android Studio for Android). Strong understanding of unit testing, RESTful API design, and a commitment to refactoring and regression test automation. Experience mentoring and coaching engineers, with a proven ability to share technical expertise ...

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

Hiring Organisation
Danaher Corporation
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
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 ...

Full Stack .net Core Developer - Fintech50- Bath

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
/3Strong C#NET WebAPIDocument oriented databases (MongoDB, DocumentDB or others)GraphQL experience (Frontend/backend)Strong React/TypeScriptSingle Page ApplicationBDD/TDDESTful API design and developmentKnowledge and experience with Git and GithubCloud experience will be gained as they are currently running a massive migration and development project … packages in the market, all inclusive. My client is based in Bath.net core, ASP.NET MVC, razor, c#, sql, mvc, .net, javascript, greenfield, , data, analytics, api, jquery ...

Angular Developer

Hiring Organisation
Lime Street Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£45,000
core business systems. This is a hands-on development role working closely with other Developers, Business Analysts, Testers and Product Owners to design, build and support high-quality, maintainable software. In particular: Designing and developing robust Modern .Net (C#) and Angular solutions that support critical business processes Building well … knowing how to manage those risks. SKILLS REQUIRED You will be comfortable working in a collaborative development team, understanding business requirements, contributing to technical design decisions and delivering well-structured code that is reliable, maintainable and easy to support. You will be able to demonstrate: Strong commercial experience with ...

Senior Cloud Engineer

Hiring Organisation
Anson McCade
Location
Manchester, UK
Employment Type
Full-time
Developer to join a specialist engineering team delivering secure, mission-critical technology for UK National Security customers. The role offers the chance to design, develop, deploy and maintain cloud-native applications and services on Amazon Web Services (AWS), supporting systems that contribute to the UK's national security … scalable and resilient cloud solutions that support critical National Security customer requirements. Work across the full software delivery lifecycle, from requirements gathering and solution design through development, testing, deployment and ongoing maintenance. Collaborate with end-users and technical stakeholders to understand complex problems and translate business needs into effective ...

Senior iOS Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£498 - £664/day
partners across product, legal, policy, and design. What We're Looking For 8+ years of professional iOS development experience with modern Swift and Cocoa design patterns. Agentic workflow adoption: Hands-on experience integrating tools like Cursor and Claude into daily engineering. Platform & API design: Proven track record ...

Cloud Engineer

Hiring Organisation
Anson Mccade
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
looking for an experienced Cloud Engineer with strong AWS expertise to design, develop, deploy and maintain cloud-based applications and services. You will work as part of an autonomous DevOps team, collaborating with software engineers, technical specialists and client stakeholders to deliver secure, scalable and reliable cloud solutions. … enjoys problem-solving, embraces new technologies and wants to take ownership of delivering high-quality cloud solutions within a collaborative engineering environment. Key Responsibilities Design, develop and maintain applications and services hosted on Amazon Web Services (AWS). Work across the full software development lifecycle, including requirements gathering, solution ...

Cloud Engineer

Hiring Organisation
Anson Mccade
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Cloud Engineer to join a specialist engineering team delivering secure, mission-critical technology for UK National Security customers. The role offers the chance to design, develop, deploy and maintain cloud-native applications and services on Amazon Web Services (AWS), supporting systems that contribute to the UK's national security … takes ownership of the full software delivery lifecycle and wants to apply their technical skills to work with a meaningful national impact. Key Responsibilities Design, develop, deploy and maintain cloud-based applications and services using AWS. Build secure, scalable and resilient cloud solutions that support critical National Security customer ...

AWS Cloud Engineer

Hiring Organisation
Anson Mccade
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
opportunity to take ownership of technical solutions, work across the full delivery lifecycle and contribute to projects with real-world impact. Key Responsibilities Design, develop and maintain cloud-based applications and services using AWS. Configure and manage AWS infrastructure to deliver secure, scalable and reliable solutions. Apply infrastructure … languages. Work with AWS services to support compute, storage, networking, security and application integration. Contribute to the full software delivery lifecycle, from requirements and design through to deployment and ongoing support. Apply DevOps principles to automate deployments, improve reliability and streamline engineering workflows. Collaborate with technical colleagues and stakeholders ...

AWS Cloud Engineer

Hiring Organisation
Anson Mccade
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Part Time, Work From Home
Salary
£70,000
working with modern cloud technologies, and contributing throughout the full software delivery lifecycle. The successful candidate will work within an autonomous DevOps team, helping design, develop, deploy, and maintain cloud applications and services that support critical operational requirements. They'll have the opportunity to influence technical decisions, explore … . They'll be part of a collaborative engineering environment that encourages innovation, continuous improvement, and the adoption of modern DevOps practices. Key Responsibilities Design, develop, deploy, and maintain cloud-based applications and services using AWS. Build and manage cloud infrastructure using Infrastructure as Code (IaC) tools. Identify appropriate ...

Senior Software Engineer

Hiring Organisation
Reed Technology
Location
Berkhamsted, Hertfordshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £80000/annum
resolve defects, ensuring the reliability and stability of the company's platforms aligning with the broader Technology Strategy. Day-to-day of the role: Design, build, test, and ship features across .NET/C# backend and Angular frontend applications. Write clean, well-tested, maintainable code and uphold those standards … administration tasks including deployments, patching, and environment configuration to reduce manual effort and risk. Contribute to architectural decisions, providing input on technology choices, system design, and platform adoption. Use Infrastructure as Code (IaC) to manage and provision Azure resources, ensuring environments are reproducible, auditable, and consistent. Build and maintain ...

Intermediate-Senior Backend Engineer (Ruby), Plan: Spec-Driven Development

Hiring Organisation
GitLab
Location
United Kingdom, UK
Employment Type
Full-time
artificial intelligence gateway. You'll join a small, distributed team working on one of GitLab's highest-visibility product bets, collaborating with design partners toward a public beta. In your first year, you'll lead major features from an unclear problem through release, help shape scope with product … other engineers, and influence technical decisions across agent workflows and evaluation methods. What you'll doLead backend features from early product discussions through technical design, implementation, rollout, and post-launch learning. Build the flows, application programming interfaces, and data models behind agent-generated work items, implementation plans, durable specifications ...

Software Architect - Retail Wealth Management- Wimbledon

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Software Architect – Retail Wealth Management100,000 Plus Bonus and Bens 10% PensionQuant Capital is urgently looking for a Technical Architect with REST API Experience to join or well known Fintech client who are a well know wealth management software business. We are looking for a technically strong architect … help to design and grow a SaaS platform. The company has bold global ambitions. They have a comprehensive microservices architecture in backend and are looking to extend the pattern into an ambitious micro-frontend strategy for user-facing applications. This is a leadership position. You will be joining ...

Senior Software Engineer - Quant trading

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
regions with a wide range of strategies. As a Senior Software Engineer, you will work closely with a talented team of engineers to collaboratively design and develop robust software solutions essential for facilitating global trading operations. This includes systems such as trading systems, exchange connectivity solutions, monitoring systems … Python (5+ years), Java and or C++Demonstrated expertise in network communication, including multicast and WebSockets. Proficiency in inter-process messaging, micro-service architectures, and API design. Familiarity with Functional Programming and Immutable Design. Experience with trading systems is desirable, but not required. Excellent oral and written communication skills. Bachelor ...

Staff Technical Lead Manager

Hiring Organisation
LiveRamp
Location
London, UK
Employment Type
Full-time
most difficult code across multiple system components, driving high coding standards and improving development practices. Demonstrated experience driving complex designs, high-quality interface/API designs, and overall architecture improvements across multiple teams and services, leading design reviews and ensuring consistent architecture. Track record of driving product/… service design and vision inside engineering, using global industry and market trends to deliver successful products and fulfilling unexpressed client wants. Experience mentoring more junior engineers, providing technical guidance, and contributing to talent identification at Staff Level & above. Strong communicator. Sharing information regularly and concisely. Good to HaveKnowledge ...

Senior Language Programmer

Hiring Organisation
Epic Games
Location
London, UK
Employment Type
Full-time
broader UE engineering organizationWhat we're looking forExpert knowledge of C++17 or laterExperience in compiler or toolchain development (e.g., compiler internals, VM design, Clang/LLVM, or linker/platform ABI specifics)Experience developing and optimizing large codebases, with the ability to make tradeoffs between usability, performance, and powerStrong … ability to reason about large, interconnected systemsSolid grounding in software engineering principles, including API designStrong communication and collaboration skills, with the ability to work autonomously and deliver practical solutionsExperience with Unreal Engine integration is a plusEPIC JOB + EPIC BENEFITS = EPIC LIFEOur intent is to cover all things that ...