76 to 95 of 95 API Development Jobs in the UK

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 ...

Hubspot Integration Specialist - Edinburgh/Hybrid/Remote Flex

Hiring Organisation
Lorien
Location
Edinburgh, Stockbridge, City of Edinburgh, United Kingdom
Employment Type
Permanent
Salary
£55000 - £65000/annum Hybrid, Remote, Progression, Trainin
ongoing supported opportunities for both upskilling and career progression, and a lot more. Role Snapshot: This post offers a great mix of CRM architecture, API development, strategic automation and systems thinking; ensuring seamless data flow, scalable automation and reliable system interoperability across the organisation's marketing, sales, customer … bring to the table: Demonstrable record of working with Hubspot in a technical hands-on capacity Strong understanding of Hubspot APIs and custom app development Track record of integrating SaaS platforms (CRM/ERP/marketing automation/billing tools/etc.) Hands-on skills across ...

Senior Backend Engineer

Hiring Organisation
Pure Talent Group
Location
B2 4QA, Birmingham, West Midlands (County), United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum Up to £70,000 per annum
user interviews to understand real customer needs Make architecture and technical decisions, taking ownership of the solutions you build Requirements: Significant experience in backend API development (REST/JSON-RPC) Strong database design and architecture knowledge (SQL and/or NoSQL) Experience integrating third-party services, cloud platforms ...

AI Software Developer

Hiring Organisation
Thomas Professional
Location
Cirencester, Gloucestershire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £75,000 per annum
experience writing high-quality Python in a commercial environment • Hands-on experience working with large language models (OpenAI, Anthropic, Mistral, or similar) • Familiarity with API development and modern software architecture • Understanding of prompt design and managing AI-generated outputs • Ideally have experience in RAG pipelines and vector databases ...

Software Engineering Lead

Hiring Organisation
VIQU IT
Location
Milton Keynes, Fenny Stratford, Buckinghamshire, United Kingdom
Employment Type
Permanent
Salary
£80000 - £85000/annum
pivotal point in their growth, having an influence over the technical strategy whilst remaining hands. Experience required: Strong background in modern .NET/C# development & architecture. A track record of leading and mentoring teams of engineers. Cloud experience across Azure & AWS. Experience with Angular framework, REST APIs … 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/CD pipelines. Knowledge of Docker and containerised applications. Hands on experience with ...

Senior Technical Lead (AI & Data Platform)

Hiring Organisation
Brightsmith
Location
Oxford, England, United Kingdom
Help shape the long-term engineering team and technical roadmap Experience Requires- Senior Technical Lead 5+ years software engineering experience Strong Python backend and API development Experience building production systems in startups or fast-moving environments Experience with data-heavy platforms or analytics products Interest in AI, modelling ...

Senior Data Engineer

Hiring Organisation
Mastek
Location
City of London, Greater London, UK
Experience: 8+ years Job Summary : We are seeking a highly skilled and experienced Senior Data Engineer to join our team and contribute to the development and maintenance of our cutting-edge Azure Databricks platform for economic data. This platform is critical for our Monetary Analysis, Forecasting, and Modelling activities. … strong understanding of data engineering principles, big data technologies, cloud computing (specifically Azure), and experience working with large datasets. Key Responsibilities : Data Pipeline Development & Optimisation : Design, develop, and maintain robust and scalable data pipelines for ingesting, transforming, and loading data from various sources (e.g., APIs, databases, financial data providers ...

Senior Software Engineer

Hiring Organisation
Bright Purple Resourcing
Location
United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Salary up to £80,000 33 days annual leave Pension & healthcare A role with genuine social impact A supportive, mission-driven workplace Professional development and clear career progression Key Responsibilities Lead the design, development, and delivery of modern, web-based applications Improve codebases, development practices, and deployment … effective systems About You Extensive experience with C#, .NET, and SQL Strong expertise in Azure and Azure cloud adoption frameworks Proven track record in API developmentand modern system architectures At least 3 years experience in a leadership role Strong problem-solving skills and ability to perform under pressure Hands ...

Senior Software Engineer

Hiring Organisation
Bright Purple Resourcing
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Salary up to £80,000 33 days annual leave Pension & healthcare A role with genuine social impact A supportive, mission-driven workplace Professional development and clear career progression Key Responsibilities Lead the design, development, and delivery of modern, web-based applications Improve codebases, development practices, and deployment … effective systems About You Extensive experience with C#, .NET, and SQL Strong expertise in Azure and Azure cloud adoption frameworks Proven track record in API developmentand modern system architectures At least 3 years experience in a leadership role Strong problem-solving skills and ability to perform under pressure Hands ...

Senior Software Engineer

Hiring Organisation
Bright Purple Resourcing
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Salary up to £80,000 33 days annual leave Pension & healthcare A role with genuine social impact A supportive, mission-driven workplace Professional development and clear career progression Key Responsibilities Lead the design, development, and delivery of modern, web-based applications Improve codebases, development practices, and deployment … effective systems About You Extensive experience with C#, .NET, and SQL Strong expertise in Azure and Azure cloud adoption frameworks Proven track record in API developmentand modern system architectures At least 3 years experience in a leadership role Strong problem-solving skills and ability to perform under pressure Hands ...

Senior Software Engineer

Hiring Organisation
Bright Purple Resourcing
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Salary up to £80,000 33 days annual leave Pension & healthcare A role with genuine social impact A supportive, mission-driven workplace Professional development and clear career progression Key Responsibilities Lead the design, development, and delivery of modern, web-based applications Improve codebases, development practices, and deployment … effective systems About You Extensive experience with C#, .NET, and SQL Strong expertise in Azure and Azure cloud adoption frameworks Proven track record in API developmentand modern system architectures At least 3 years experience in a leadership role Strong problem-solving skills and ability to perform under pressure Hands ...

Integration Architect

Hiring Organisation
Pontoon
Location
Warwick, Warwickshire, United Kingdom
Employment Type
Contract
Contract Rate
£900 - £950/day
CDE. Strong understanding of data exchange mechanisms and system interoperability. Experience in managing configurations across diverse tools to ensure compliance and efficiency. Familiarity with API development and information management principles, including ISO 19650. Excellent communication and stakeholder management skills. Qualifications: Bachelor's degree in computer science, Information Technology ...

Software Architect

Hiring Organisation
Ventula Consulting
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 120,000 Annual
roles. Strong expertise with Angular.JS/TypeScript. Solid hands-on experience with Swift, ideally Swift Vapor for Back End services. Proven track record in API design and development. Excellent interpersonal and communication skills to engage with both technical and non-technical stakeholders. Package & Location Salary: £120,000 per annum ...

Front End Software Engineer (Typescript)

Hiring Organisation
Safe Intelligence
Location
City of London, Greater London, UK
join our team! We're particularly looking for someone with strong front end engineering and Typescript experience and with some experience of backend development (ideally in Golang ). In this role, you'll be a key contributor to the development and operation of our cutting-edge cloud-based … excited to have you contribute to our mission! Responsibilities: As a Safe Intelligence Front End Software Engineer, you will: Make key contributions to software development on our TypeScript-based frontend systems, primarily utilizing React to craft intuitive and highly functional user interfaces. Develop simple and intuitive UI to enable ...

Software Engineer

Hiring Organisation
MBDA UK
Location
Stevenage, Hertfordshire, United Kingdom
Employment Type
Permanent
Salary
£65000/annum
logging subsystem on a high-profile, accelerated weapon system programme. Appropriate data capture and processing is essential to understanding system performance and planning spiral development paths. This is a very hands-on role and requires the continued design and development of complex system architectures and the instantiations … What we're looking for from you: The successful candidates will be able to demonstrate exposure to practical software engineering, C/C++ software development, and will play a critical part in the design, development, integration, and verification of software solutions that are central to our system validation ...

Senior Full Stack Engineer

Hiring Organisation
Access Computer Consulting
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £440/day
Java Full Stack, React, Kubernetes & Docker. Experience in building responsive, component based user interfaces using modern front end frameworks. Hands on expertise in API design and development (REST/JSON), including versioning and backward compatibility. Experience with UI testing, component testing, and front end build tooling. Experience ...

Lead Azure Platform Engineer

Hiring Organisation
Opus Recruitment Solutions
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £625/day InsideIR35
Lead Azure Platform Engineer - API Platform (APIM/Apigee) | £600- £625 InsideIR35 | 6 month initial | Fully Remote The role is to take ownership and lead the design, development, and maintenance of the API Platform along with conducting reviews of API designs to ensure they align with … standards and governance requirements of the platform. · Collaborate with cross-functional teams to define API requirements. · Ensure the platform is scalable, secure, and performs to meet the current and future needs. · Set technical standards and best practices for API development. Key requirements: - Work with delivery leads and product ...

Senior JavaScript Engineer

Hiring Organisation
Insight Recruitment
Location
United Kingdom
Full-Stack JavaScript Engineer. You'll contribute towards an extensive product roadmap spanning multiple products, with a strong focus on third-party integrations and API development. Tech Stack - React.js, Next.js, Node.js, Nest.js, Express, Typescript, GraphQL, AWS Key Responsibilities: Build full-stack features across a suite of customer journey … marketing products API design and third-party integration work Contribute to product architecture decisions with high levels of autonomy Collaborate closely with a tight-knit, experienced engineering team Requirements: Senior-level capability Strong front-end and back-end JavaScript/Typescript experience Strong AWS skills beneficial There's annual ...

Staff Engineer

Hiring Organisation
Admiral
Location
East London, London, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Staff Engineer role, ideally within web and mobile application development. Deep expertise in React and NestJS, including server-side rendering, state management, and API development. Experience designing and operating micro frontend (MFE) architectures, including module federation and independently deployed pipelines. Strong background in CI/CD practices, automated testing … Lead on resolving technical constraints, blockers, and integration challenges. Identify and address technical debt, ensuring sustainability and maintainability. Oversee vulnerability management by promoting secure development practices and robust solution design. Collaborate with key technical stakeholders. Admiral: Where You Can We take pride in being a diverse and inclusive business. ...

Product Manager – Global Card Issuing Platform (BaaS)

Hiring Organisation
WorldFirst
Location
City of London, London, United Kingdom
infrastructure that allows clients to launch card programs anywhere in the world through a single integration. You will be responsible for a unified Global API and SDK suite that abstracts the complexity of regional payment networks. Whether a client is launching in Europe, North America, or APAC, your product … will provide a consistent, white-label experience. You will drive both the technical "how" (API/SDK design) and the strategic "where" (global expansion and regional issuing setups). What you’ll do: Unified Global API Strategy: Design and maintain a single, polymorphic API architecture that supports ...