51 to 68 of 68 API Development Jobs in the UK excluding London

C# .NET Web Developer

Hiring Organisation
Interact Consulting Limited
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
skills: Minimum 4 years' commercial C# .NET experience. Strong SQL/MySQL skills (including complex queries). Experience with VueJS and/or Angular. API development and third-party integrations. AWS experience. Desirable skills: AI integration experience (e.g. OpenAI). Use of AI tools (e.g. Claude) in development ...

Lead Data Platform Engineer

Hiring Organisation
Harnham
Location
Manchester Area, United Kingdom
with monitoring, logging and alerting solutions. • Ability to design, build and optimise cloud platform solutions. • Stakeholder management skills and confidence working across multiple teams. • API development experience. • Azure Data Factory knowledge is beneficial. What They Offer • Salary between £80,000 and £85,000 plus bonus. • Comprehensive benefits package ...

Lead Data Platform Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £85,000 per annum
with monitoring, logging and alerting solutions. * Ability to design, build and optimise cloud platform solutions. * Stakeholder management skills and confidence working across multiple teams. * API development experience. * Azure Data Factory knowledge is beneficial. What They Offer * Salary between £80,000 and £85,000 plus bonus. * Comprehensive benefits package ...

Lead Data Platform Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £85,000 per annum
with monitoring, logging and alerting solutions. * Ability to design, build and optimise cloud platform solutions. * Stakeholder management skills and confidence working across multiple teams. * API development experience. * Azure Data Factory knowledge is beneficial. What They Offer * Salary between £80,000 and £85,000 plus bonus. * Comprehensive benefits package ...

AI & Automation Developer

Hiring Organisation
Operations Resources
Location
Cardiff, South Glamorgan, Wales, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Augmented Generation (RAG) systems to ensure AI outputs are grounded in company-specific data. Integrate various third-party services and internal databases via robust API development and consumption. Design and implement AI Agents capable of multi-step reasoning and task execution. Collaborate with stakeholders to identify manual processes … production-ready automations that reduce manual overhead. High-Performance RAG Pipelines: Implementation of vector databases and retrieval logic for context-aware AI responses. Seamless API Integrations: A library of well-documented integrations for effective system communication. Technical Documentation: Comprehensive guides for all developed agents and automated processes. Experience ...

Senior Lead Analyst - Data Science - Machine Learning & Gen AI - UK

Hiring Organisation
Infosys
Location
Chester, England, United Kingdom
seeking a Senior AI/ML & Generative AI Engineer with deep expertise in designing, developing, and deploying advanced AI solutions. This includes core Python development using OOPs concepts, Large Language Models (LLMs), and Agentic AI architectures. The ideal candidate will collaborate with clients to understand complex business challenges, architect … Markets. Your Role As a Senior Lead Analyst, you will: •Anchor the engagement effort from business process consulting and problem definition to solution design, development, and deployment. •Lead the discovery and definition of AI/ML solutions and guide teams on project processes and deliverables. •Act as a thought ...

Full Stack Laravel Developer - Fintech SaaS Game Changer

Hiring Organisation
Recruitment Revolution
Location
Epsom, Surrey, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
heights with a game-changing SaaS platform already making waves across the UK, Europe, and North America. This isn't just a development role - you'll have a genuine voice in shaping the product, the architecture, and the direction of the company. At Debt Register , we're not just … Haymarket, SSE, Zendesk, Johnson Controls, ADT and More... Culture: Informality and Flexibility, Work-Life Balance, Wellbeing, Personal Growth and Trust Your Skills: Laravel (Backend Development). React & TypeScript. Fintech SaaS. AI/OpenAI API Integration. MySQL & API Development. Docker & CI/CD. ...

F5 Automation Engineer

Hiring Organisation
Auxo Talent
Location
Sheffield, England, United Kingdom
platform. Understand and modify existing code to work with new technologies. Create deployment pipelines using client approved technologies. Adhere to configuration and API standards. Share knowledge and collaborate effectively with a distributed team. What You Need to Succeed Strong technical knowledge of Python, API development, and code ...

AI Engineer

Hiring Organisation
Oscar Technology
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £100,000 per annum
agents, automate complex workflows, and extract value from structured and unstructured data at scale. This role sits at the intersection of AI engineering, software development, and applied machine learning , working closely with product, platform, and data teams. Key Responsibilities Design, build, and deploy agentic AI systems and intelligent workflows … architecture decisions, performance optimisation, and AI system monitoring Required Skills & Experience Bachelor's degree or higher in a relevant STEM discipline. Strong Python development skills for AI/ML and backend services Hands-on experience with agentic AI architectures and autonomous workflows Practical experience with AI orchestration frameworks (e.g. ...

Software Engineering Team Lead .NET / C#

Hiring Organisation
McGregor Boyall
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£110,000 - £125,000 per annum
experience leading engineering teams in an Agile environment Strong expertise in C# and modern .NET/.NET Core Experience building distributed, event-driven systems API design and development (REST, GraphQL) Relational databases (SQL Server, MySQL, or similar) Cloud platforms such as AWS or Azure Solid understanding … full software development lifecycle Pragmatic, delivery-focused approach with strong communication skills Location & Package Location: London Working Pattern: Hybrid - 3 days per week in the office Salary: Up to £125,000 base + bonus and benefits McGregor Boyall is an equal opportunity employer and do not discriminate ...

Lead Software Engineer

Hiring Organisation
VIQU IT Recruitment
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Permanent
Salary
£85,000
point in their growth, having an influence over the technical strategy whilst remaining hands on. Experience required: Strong background in modern .NET/C# development & architecture. A track record of leading and mentoring teams of engineers. AWS experience including; IAM, Lambda, API Gateway and event-driven architectures … environments. Experience with Angular front end framework, REST APIs and Web API development. Experience with testing frameworks and quality engineering practices (unit & integration testing and test driven development). SpecFlow for Behaviour-Driven Development and Postman for API testing. Experience building and maintaining CI/ ...

Systems Project Manager

Hiring Organisation
MCR Property Group
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£35,000 - £45,000 per annum
delivery of a new property management system, replacing the existing platform and reshaping how the business operates across its residential, commercial and development portfolios. From initial planning through to go-live and beyond, you’ll own the implementation journey — ensuring the system is configured correctly, integrated seamlessly, adopted confidently … ensuring accuracy, integrity and business confidence in the new platform. Integration will sit at the core of your remit. You’ll coordinate and oversee API development connecting the new system with HubSpot, finance and banking platforms, tenant portals and BI tools, managing external developers where bespoke solutions ...

Full Stack Developer

Hiring Organisation
Horwich Farrelly
Location
Salford, Greater Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Collaborate with stakeholders and product owners to understand requirements and deliver solutions. Participate in code reviews, testing, and continuous improvement initiatives. Contribute to the development of our AI-driven product suite, including ELI. Occasionally engage with clients or internal teams to understand needs and provide technical guidance. What were … looking for: Essential Skills: Strong experience in C# for backend/API development. Proficiency in JavaScript/TypeScript , with exposure to frameworks such as Angular (front-end) and Node.js (backend). Ability to adapt quickly and learn new technologies as needed. Solid understanding of software development principles ...

Dynamics 365 Senior Developer

Hiring Organisation
Nigel Frank International
Location
Newcastle Upon Tyne, Tyne and Wear, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 per annum
solutions that make a real business impact.* Build and maintain plugins, workflows, custom actions, JavaScript, Power Automate flows, and integrations.* Lead full lifecycle development from technical design through to deployment.* Work closely with functional consultants to translate business needs into robust technical solutions.* Develop and support integrations using APIs … third-party systems.* Troubleshoot issues, optimise performance, and champion best-practice development.* Provide technical leadership, mentoring junior developers and influencing architectural decisions.* Ensure all development aligns with Microsoft best practices, security standards, and governance frameworks.* Support upgrades, migrations, and continuous improvements across the Dynamics 365 platform. Skills & Experience* Proven ...

Dynamics 365 Senior Developer

Hiring Organisation
Nigel Frank International
Location
Birmingham, West Midlands, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 per annum
Dynamics 365 Senior Developer - Job Description Overview We are seeking an experienced Dynamics 365 Senior Developer to lead the design, development, and implementation of Microsoft Dynamics 365 solutions. This role is ideal for someone who combines deep technical expertise with strong collaboration skills, working closely with stakeholders, architects … solutions to meet business requirements.* Build and maintain plugins, workflows, custom actions, JavaScript, Power Automate flows, and system integrations.* Lead end-to-end development across the full project lifecycle, from technical design through to deployment.* Collaborate with functional consultants to translate business needs into robust technical solutions.* Develop ...

C# .NET Software Developer

Hiring Organisation
GMSL
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Permanent
have a great opportunity for a C# .NET Software Developer to join our fantastic software development team based in Cambridge. This is an ideal role for someone who wants to join a friendly, small and highly technical team where you can have a real impact. The role You will … embedded as a full-stack developer in one of our small agile development teams. You will collaborate alongside product owners, testers and other developers to develop features for our power-scheduling software product. Our view of agile software development is inspired by eXtreme Programming rather than Scrum. ...

Dynamics 365 Senior Developer

Hiring Organisation
Nigel Frank International
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 per annum
Dynamics 365 Senior Developer - London OverviewWe are seeking an experienced Dynamics 365 Senior Developer to lead the design, development, and delivery of Microsoft Dynamics 365 solutions. This London-based role is ideal for someone with strong technical expertise and excellent collaboration skills, working closely with stakeholders, architects, and functional … customise Dynamics 365 CE/CRM solutions.* Build and maintain plugins, workflows, custom actions, JavaScript, Power Automate flows, and system integrations.* Lead full lifecycle development from technical design through to deployment.* Partner with functional consultants to translate business needs into robust technical solutions.* Develop and maintain integrations using APIs ...

Applications Developer

Hiring Organisation
Ryder Reid Legal Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
aligned with business goals. What They Are Looking For Degree in Computer Science, Information Systems, or related field. Minimum 3 years' experience in software development, with strong skills in SharePoint, SQL Server, and the .NET environment. Proficiency in C#, ASP.NET MVC/Core, and web API development. Experience … with front-end frameworks and modern development practices. Strong problem-solving skills and ability to manage multiple projects. Excellent communication and collaboration skills. Why Apply? This is a fantastic opportunity to join a prestigious global organization that values innovation and offers a collaborative, forward-thinking environment. You'll work ...