1 to 25 of 35 Remote API Design Jobs

Technical Product Manager

Hiring Organisation
HUKM Development
Location
Buckinghamshire, England, United Kingdom
Probation: 6 months About the role As a Technical Product Manager at HUKM, you will lead the development and delivery of backend and API-driven products. You will manage development pods, translate business requirements into technical solutions, and drive execution through agile delivery. This is a hands-on technical … development pods of 15 to 20 engineers, ensuring effective collaboration and delivery Define product roadmaps, prioritise features, and maintain product backlogs for backend and API initiatives Design and document API specifications, data models, and system architecture alongside engineering teams Run sprint planning, daily standups, sprint reviews ...

Boomi Architect

Hiring Organisation
Syntax Consultancy Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500/day 500/day (Outside IR35)
. Start ASAP during Summer 2026. Key skills, experience + tasks will include: Boomi Solution Architect with a strong focus on Boomi/iPaaS, API Management, Event Streaming, integration architecture, governance + technical leadership. Integration Adoption & Project Onboarding - architecture engagement + onboarding of priority projects onto the strategic integration … platform (e.g. SDEC, S4H, DWIT). Production of project-specific integration designs aligned to approved iPaaS, API and Streaming patterns. Completion of architecture assurance reviews and design recommendations for onboarding projects. Support projects through technical discovery, design and implementation phases. Reusable Integration Asset Library: design ...

Boomi Architect

Hiring Organisation
Syntax Consultancy Limited
Location
Westminster, Greater London, UK
. Start ASAP during Summer 2026. Key skills, experience + tasks will include: Boomi Solution Architect with a strong focus on Boomi/iPaaS, API Management, Event Streaming, integration architecture, governance + technical leadership. Integration Adoption & Project Onboarding - architecture engagement + onboarding of priority projects onto the strategic integration … platform (e.g. SDEC, S4H, DWIT). Production of project-specific integration designs aligned to approved iPaaS, API and Streaming patterns. Completion of architecture assurance reviews and design recommendations for onboarding projects. Support projects through technical discovery, design and implementation phases. Reusable Integration Asset Library: design ...

Senior Data Engineer

Hiring Organisation
Morson Edge
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - 750 per day + None
Senior Data Engineer with a strong retail background to join a leading UK retail organisation, working within a data and AI-focused team to design and implement customer data solutions that enable more personalised customer experiences. You will play a key role in building scalable, secure and reliable data … deliver enterprise-grade customer data capabilities. Key Responsibilities - Lead technical and engineering decisions relating to customer data, including data infrastructure, APIs and data pipelines. - Design and deliver Customer 360 and customer identity solutions, ensuring seamless integration across customer-facing platforms. - Architect and implement real-time data integrations using event ...

Backend Developer (Azure)

Hiring Organisation
Amtis Professional Ltd
Location
Euston, Norfolk, United Kingdom
Employment Type
Contract
Contract Rate
GBP 425 - 475 Daily
outside IR35. This is a hands-on role working on a mature Azure-based backend platform, with responsibility across the full software lifecycle - from design and development through to testing, deployment and production support. You ll be working with C#, .NET, Azure Functions, Azure SQL, Azure Service Bus, Azure … API Management and Azure DevOps, contributing to a platform that supports connected patient services. This role is particularly suited to a developer who can hit the ground running, work independently and own technical delivery end-to-end without requiring day-to-day technical supervision. What You ll Be Doing ...

Backend Developer (Azure)

Hiring Organisation
Amtis Professional Ltd
Location
London, Euston, United Kingdom
Employment Type
Contract
Contract Rate
£425 - £475/day OUTSIDE IR35
outside IR35. This is a hands-on role working on a mature Azure-based backend platform, with responsibility across the full software lifecycle - from design and development through to testing, deployment and production support. You’ll be working with C#, .NET, Azure Functions, Azure SQL, Azure Service Bus, Azure … API Management and Azure DevOps, contributing to a platform that supports connected patient services. This role is particularly suited to a developer who can hit the ground running, work independently and own technical delivery end-to-end without requiring day-to-day technical supervision. What You’ll Be Doing ...

Backend Developer (Azure)

Hiring Organisation
Amtis Professional Ltd
Location
Birmingham, Solihull, West Midlands (County), United Kingdom
Employment Type
Contract
Contract Rate
£425 - £475/day OUTSIDE IR35
outside IR35. This is a hands-on role working on a mature Azure-based backend platform, with responsibility across the full software lifecycle - from design and development through to testing, deployment and production support. You’ll be working with C#, .NET, Azure Functions, Azure SQL, Azure Service Bus, Azure … API Management and Azure DevOps, contributing to a platform that supports connected patient services. This role is particularly suited to a developer who can hit the ground running, work independently and own technical delivery end-to-end without requiring day-to-day technical supervision. What You’ll Be Doing ...

Tech Practice Principal - Backend Lead

Hiring Organisation
Hackajob Ltd
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
Tech Practice Principal - Backend Lead Location: Hybrid: Client Site, AND Digital office, Remote. Proximity to Reading/Thames Valley is key Core Tech: Node.js, API Integration, Microservices, Microsoft Azure Cloud AND Introduction At AND, we accelerate the development of digital capabilities. In practice, that means helping ambitious leaders … oversee support for these backend systems. Engineering Culture: Set the "gold standard" for backend engineering routines. Drive a culture of technical pride, ensuring robust API design, secure cloud deployment practices, and insightful code reviews. Team Leadership & Delivery Management Delivery Accountability: Operates in "Project Mode," taking full accountability ...

Senior Java Developer

Hiring Organisation
CODEVERSE LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £400 per day
experienced Senior Java/Python Engineer to join a high-performing Agile engineering team delivering secure, highly available and scalable microservices and API platforms. You will be hands-on with modern engineering technologies, working across microservices, APIs, Kafka, cloud databases, containers and observability, while also providing technical leadership … mentoring junior engineers. Key Responsibilities Design and develop scalable Java/Python microservices and REST APIs. Build and operate event-driven solutions using Apache Kafka . Design and optimise AWS Aurora PostgreSQL databases and data platforms. Deploy and support applications using Docker and Kubernetes . Develop API ...

Manager - Lead AI Engineer

Hiring Organisation
KPMG UK
Location
City of London, London, United Kingdom
Data Analytics, and Software Development, the team is revolutionising the auditing process to deliver smarter, faster, and more reliable outcomes. Our mission is to design and implement robust, intelligent, and scalable technologies that not only streamline workflows but also enhance audit quality and generate actionable insights for auditors … backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful ...

Solution Architect

Hiring Organisation
Yorkshire Water
Location
Bradford, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
being made aligning solution delivery with business goals. Through your growing understanding of the event business domain, ensure business process is core to any design considerations Design, shape and govern scalable, secure and highly available solutions using Microsoft Azure technologies, ensuring they meet both current and future business … demands. Play an active role in architecture forums and design authorities, championing best practice and contributing to the continuous evolution of architectural standards and frameworks. Provide expert technical leadership and guidance to engineering teams, supporting the successful delivery of robust, high-quality solutions. Define, establish and uphold governance standards ...

Senior .Net Engineer (Backend)

Hiring Organisation
Phillips & Cohen
Location
Salford, Greater Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
Backend Engineer. We are looking for a talented and motivated Senior Backend Engineer to join our growing innovation team. In this role, you'll design, develop, deploy, and support microservice-based applications that power critical business services. You'll work closely with fellow developers, and operations teams to deliver … smooth cutovers with minimal operational impact and improved system stability. This role is hybrid, based out of our Manchester office. Responsibilities: Build Automated Services: Design and deploy robust background worker services, scheduled tasks, and event-driven automation. Develop Custom APIs: Architect, build, and document secure, scalable RESTful Web APIs ...

SVP - GenAI Full-Stack Engineer Lead

Hiring Organisation
Appcast
Location
London, UK
across the organisation to build scalable developer platforms, influence engineering strategy and drive the adoption of Generative AI and modern engineering practices.Key ResponsibilitiesDrive the design and delivery of enterprise-scale applications supporting critical business functions and large user populations.Remain hands-on with software architecture, system design, code reviews … using Kubernetes, containers, microservices and event-driven architectures.Strong understanding of distributed systems, resiliency patterns, scalability and performance engineering.Strong knowledge of SQL and NoSQL technologies, API design and integration patterns.Excellent communication and stakeholder management skills with the ability to influence technology decisions across numerous teams and organisations.Growth mindset with ...

Senior Full Stack Java Developer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
security etc). Working within a project management/agile delivery methodology Experience in technical ownership for a product or software solution, covering design, estimation, shaping and user story/requirement creation Documentation of solutions (e.g. architecture, configuration, release, support-handover Collaborate and liaise with other Version … including microservices and message-driven architectures NFR/Non-Functional requirement understanding and experience developing applications with this in mind Application/Digital Services Design experience Experience in software engineering practices like Code Reviews, CI/CD Pipelines and SOLID/DRY principals Hands-on developing/coding role ...

Solutions Architect

Hiring Organisation
Reed Technology
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent
Salary
£70,000
early-stage architecture definition, ensuring business and technical requirements are appropriately translated into solution designs. Support impact assessments, architectural governance activities, and Technical Design Authority (TDA) submissions. Design and assure solutions spanning Internet of Things (IoT), Access Control, Building Management Systems (BMS), Building Information Modelling (BIM), asset data … enterprise IT infrastructure. Define integration approaches, API strategies, and data flows across digital platforms and operational technologies. Engage with internal teams and third-party suppliers, facilitating technical reviews and evaluating architectural options to support informed decision-making. Required Skills & Qualifications: Broad understanding of IoT, enterprise data, BIM, system integration ...

Senior C# Engineer .NET 9/10, AWS Lambda, SQS, SNS Outside IR35

Hiring Organisation
Smart Sourcer Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £700 to £800 per day
Overview: Youll operate as the technical spearhead for a greenfield product build, reporting to the Director of Engineering. Expect deep backend engineering, distributed system design, and high-quality serverless delivery, plus the chance to adopt modern AI-assisted development practices as part of your workflow. What Youll Bring: Senior … ability to architect and lead distributed REST microservices at scale. Strong authority in AWS serverless engineering: Lambda-first mindset, hands-on experience with API Gateway, SQS, Step Functions, EventBridge and IAM. Deep data expertise across Aurora MySQL and DynamoDB: schema design, access patterns, indexing, query tuning, and pragmatic ...

Technical Architect

Hiring Organisation
Opus Recruitment Solutions
Location
Newcastle upon Tyne, Tyne & Wear, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600/day
Manchester, Blackpool, Birmingham, Newcastle) Contract: 6 Months Opportunity We are supporting a major UK Government programme seeking an experienced Solution Architect to lead the design and delivery of enterprise-scale solutions across business-critical functions including People, Finance, Commercial and Estates. This is an excellent opportunity to join … high-profile transformation programme where you will shape technical strategy, design modern cloud-based solutions, and work closely with senior stakeholders, engineering teams, and delivery partners. Key Responsibilities Design end-to-end technical solutions that align with business requirements and enterprise architecture standards. Lead architecture design ...

Full Stack Developer

Hiring Organisation
Ashdown Group
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
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 … Twilio APIs (voice, SMS, video) and related integrations. 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/ ...

Principal Software Engineer

Hiring Organisation
Searchability (UK) Ltd
Location
Liverpool, Merseyside, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
platform and influence engineering strategy Work within a senior, AI-first engineering environment KEY POINTS Principal-level position with significant technical ownership Leading the design and development of a modern platform rebuild Strong focus on Node.js, TypeScript, React and cloud technologies Opportunity to shape engineering standards, architecture … role where you'll help shape the future of a modern, large-scale platform whilst remaining hands-on with development. You'll lead the design and delivery of scalable backend services, APIs, integrations and data flows, whilst providing architectural guidance across the wider engineering team. Although the role ...

Contract AI Software Engineer - DV Cleared

Hiring Organisation
NSD
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£450 - £650 per day
Experience with AWS or Azure Familiarity with Docker and Kubernetes Experience working in secure or highly regulated environments Strong understanding of software architecture and API design IT WOULD BE NICE FOR THE AI SOFTWARE ENGINEER TO HAVE. Experience with RAG pipelines and vector databases Knowledge of MLOps tooling ...

Principal Engineer - Platform & Data

Hiring Organisation
Masabi
Location
United Kingdom
Employment Type
Full Time
Salary
1000 GBP Annually
ability to operate across teams. You'll help shape the technical direction of Masabi's platform while staying close enough to the detail to design, review and deliver meaningful technical work. Working across the engineering organisation, you'll act as a senior technical leader: defining and evolving architecture, guiding … practices Help shape Masabi's data architecture and strategy, including how we structure, store and make use of the data generated across our platform Design and deliver scalable, robust, cost efficient services aligned with platform blueprint Stay hands-on in code and technical delivery, including reviews and targeted contributions ...

Application Architect

Hiring Organisation
Appcast
Location
Macclesfield, Cheshire, UK
architecture of key strategic initiatives across Fourth. Working as an embedded member of delivery teams, you will provide hands-on architectural leadership, helping engineers design, build and evolve scalable, maintainable and resilient software solutions.You will apply Fourth's application architecture standards, patterns and engineering principles, whilecontributing to their ongoing … practical delivery experience.· Produce architectural designs, decision records, and technical documentation that clearly communicate solution intent and support long-term maintainability.· Participate in architecture, design, and code reviews, providing constructive feedback and helping ensure consistency with established architectural principles.· Collaborate with business, product, engineering, and fellow architects to understand ...

Net Developer

Hiring Organisation
Pontoon
Location
Bromley, London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £750/day
Develop and maintain high-quality software applications using .NET (4.5+/.NET Core) and Python. Collaborate with cross-functional teams to gather requirements and design effective solutions. Provide support to team members and stakeholders to ensure smooth project execution. Liaise with technical and business colleagues to understand functional requirements … deliver solutions that align with business objectives. Utilise your understanding of Web Services (REST, SOAP) to design and document APIs effectively. Work with MS SQL Server, including TSQL, SSIS, SSRS for database management and reporting. Utilise version control tools such as Git/Bitbucket and job scheduling tools like ...

Development Manager - Digital Platform & API

Hiring Organisation
Morgan McKinley (South West)
Location
Epsom, Surrey, United Kingdom
Employment Type
Permanent
Development Manager - Digital Platform & API Location: Epsom, Surrey (Hybrid - 2 days office/3 days work from home) Position Overview Are you an agile digital delivery specialist looking to shape the future of platform services across a progressive business? We are seeking a Development Manager - Digital Platform & API … high-value transformation projects with continuous operational BAU demands. Key Responsibilities Product Ownership & Strategy: Lead the roadmap, product backlog, and feature prioritization for our API integration layer and a suite of around 20 application platforms, including flagship digital finance tools. Outsourced Delivery & Vendor Management: Direct external software providers ...

Senior Software Engineer – Data Visualisation & Graphics | London

Hiring Organisation
techstack Recruitment
Location
City of London, London, United Kingdom
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 ...