201 to 225 of 271 API Development Jobs in the UK

SOFTWARE DEVELOPER MJ Quinn

Location
Knowsley, England, United Kingdom
locations. The Department has complete ownership of our Microsoft Modern Workplace solutions combined with Microsoft Dynamics. JOB OBJECTIVE As a key member of our development team, you will be responsible for the end-to-end delivery of applications and services built on the Microsoft technology stack. This role involves … quality solutions that support and enhance business-critical systems, hosted primarily on the Microsoft Dataverse and Microsoft Azure platforms. Working across the full software development lifecycle, you will collaborate with stakeholders to translate requirements into scalable, maintainable solutions using Dynamics 365, Power Platform, C#, .NET, React and a broader ...

Backend Engineer for Scalable EV Charging Platform

Location
Greater London, England, United Kingdom
powering our public EV charging platform, focusing on scalable, observable systems. You should have 2+ years Python experience, strong Git/CI/CD, API development (REST/GraphQL), and knowledge of databases. We value collaborative problem-solving and the ability to translate product needs into solid technical ...

Junior CTO / Full Stack JavaScript Developer

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
will be working on a high demand website and have a key role with the CEO's ear. There will certainly be exposure to API development, as well as front end work using React. Managing outsourcing. Required, desirable and nice to have skills and exposure (the below also ...

Software Tech Lead

Hiring Organisation
Talent Locker
Location
Wiltshire, South West, United Kingdom
Employment Type
Permanent
strong backend/integration background and the confidence to influence technical direction. You should have strong experience with: Java and SQL Backend services and API development System integration and software architecture Automated testing and CI/CD Working across the stack, ideally with Angular or a similar framework ...

Software Tech Lead

Location
London, United Kingdom
strong backend/integration background and the confidence to influence technical direction. You should have strong experience with: Java and SQL Backend services and API development System integration and software architecture Automated testing and CI/CD Working across the stack, ideally with Angular or a similar framework ...

Gaming Platform Engineer - React & Go Microservices

Location
Stoke-on-Trent, England, United Kingdom
Bet365 is seeking Frontend Developers to join our Gaming Platform team in a hybrid working model. You will own development from requirement to go-live, building React front-ends or Golang microservices, and collaborating across Web, API, and Transactions teams to deliver high-impact features. Ideal candidates will … have proven React experience plus Go or C#, a solid grasp of web/API development, and familiarity with Google Cloud Platform. #J-18808-Ljbffr ...

Full Stack Developer

Location
Cwmbran, Wales, United Kingdom
fintech products used across the insurance market. You'll work across the stack using Python, Django, SQL, and React , contributing to both new product development and ongoing application support. This is a hands-on role with real influence over how our products evolve. What you'll do Design, build … occasionally with clients Contribute to CI/CD pipelines using Azure DevOps What you'll need to succeed: Essential Experience Python 3+ years' API Integrations Strong SQL skills (MySQL or PostgreSQL) Solid front-end fundamentals (HTML, CSS, JavaScript, React, Angular) Good understanding of software design principles and best practices ...

REST & .NET API Modernisation Specialist (Hybrid Basildon)

Location
United Kingdom
candidate will be responsible for modernising legacy services into RESTful APIs and developing scalable .NET-based services. Strong experience with .NET and REST API development is required, along with an understanding of microservices architecture. The role offers a competitive salary and the opportunity to work on large-scale ...

Full-Stack Engineer - AI Startup (Typescript, Node, React)

Hiring Organisation
Infused Solutions Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
£120000 - £150000/annum
technical contributor within a small engineering team. You'll work across the entire technology stack - from database and backend development through to the user interface - while taking ownership of the software you build through to production and beyond. Working closely with the founding/lead engineer and founders … deliver end-to-end product functionality across the full stack. Develop and maintain high-quality production software. Work across backend, frontend, database and API development. Contribute to technical architecture and engineering decisions. Take ownership of features from concept through to production. Work closely with founders and engineering leadership ...

SAP Technical Architect

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £625/day
Provide technical leadership across SAP integration projects and initiatives. Design, prototype, and implement automation solutions that improve integration delivery. Identify opportunities to streamline SAP development, integration, testing, and deployment processes. Work closely with SAP delivery teams to ensure solutions are practical, scalable, and deliver measurable value. Lead technical proof … concepts and rapid innovation initiatives to evaluate new tools, technologies, and ways of working. Drive adoption of AI-assisted development, automation, and modern engineering practices. Define and measure key performance metrics to demonstrate improvements in delivery speed, quality, and efficiency. Produce technical recommendations, demonstrations, and business cases to support ...

C# Backend Developer Fintech

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Tech: C#, concurrent .NET code,TCP/IP and websockets, SQLChallenge: Greenfield Trading platform, API development, industry specific challengesFirm: Well-known Commodity Trading Software Firm, City of London, 40 man flat Dev TeamPay: 80k, 20% Bonus- 750 training budget, Pension, Life/Health, Some Flex WorkingC# Backend Developer … FintechQuant is urgently looking for a junior and senior C# Software Engineer to join our high profile client. Current challenges greenfield trading platform development and Integration to other platformsOur client is a well known commodity trading platform. The environment is that of Facebook or Google, relaxed open with time ...

Software Developer – Microsoft .NET, Umbraco & Power Platform

Location
Sheffield, England, United Kingdom
.NET, Umbraco & Power Platform We are looking for a Software Developer to join our friendly and supportive team here at Arkom to boost our development capacity and help us deliver industry-leading projects. This is an excellent opportunity for a versatile Software Developer who enjoys variety and wants … business applications, websites and integrations, with an increasing focus on Microsoft Power Platform solutions. We're looking for someone with strong hands-on .NET development experience who is also keen to expand their expertise within Power Platform technologies. Please note, due to the hybrid nature of the role, candidates ...

Applications Support Analyst

Hiring Organisation
Kudos Partners
Location
Slough, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
week in the office. Key technical requirements; Proven hands-on Angular or Bigcommerce (or similar) website, mobile app support experience Proven hands-on API development or support experience Proven hands-on Azure ADF, logic app, function app, storage accounts development or support experience Proven hands-on Mobile … middleware, IIS solution development, or support experience Proven hands-on experience in SSIS packages support, DB clustering set up, DB, SSIS upgrades, DB performance tuning. Experience in setting up monitoring and alerting using any monitoring tools e.g. spotlight, solarwinds etc. Power BI and MS fabric experience optional Key responsibilities ...

GCP Identity & API Developer

Location
Sheffield, England, United Kingdom
Experis - ManpowerGroup is seeking an experienced Application Developer in Sheffield, with 3 days onsite per week. The role centers on identity API development, data ingestion and transformation, and event-driven architectures using Google Cloud Platform. You will design secure IAM workflows, integrate with identity services, and build scalable ...

Data Scientist

Hiring Organisation
TechShack
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
business information from Outlook and Teams. KEY RESPONSIBILITIES Design and implement a new MCP server using the organisation's existing data platform/API Enable natural language querying of business datasets via an internal AI assistant Integrate relevant datasets based on defined user and business requirements Integrate with …/LLM capabilities with APIs, data platforms and business applications, rather than experience limited to using generative AI tools Python and/or TypeScript API development and integration Data platforms and data APIs AI agents and tool calling Working knowledge of AWS Data security and authentication Experience developing ...

Windchill Administrator (SC Cleared)

Hiring Organisation
ARM
Location
Nationwide, United Kingdom
Employment Type
Contract
have ACTIVE SC Clearance and be a Sole British National*** This role provides opportunity to work for major aerospace customer in windchill administration and development area, being a key point of contact for windchill in this area of the business. Being the Windchill Administrator, you will be reporting … Essential skills/experience: * Windchill Administration * Windchill Customization * Windchill data utilities, form validators * Windchill soft typing * Windchill loader mechanism, ACLs * Workflow & LifeCycle configuration * JDBC, API development ,MS SQL OR Oracle * Working with DevOps tools like GIT, JIRA Desirable skills/experience: * Data migration and supporting with scripting * Writing ...

Sr. Ad Tech Consultant, Ad Tech Solutions (ATS)

Hiring Organisation
Amazon
Location
London, UK
Employment Type
Full-time
Spain and Italy. You will help customers to achieve their business outcomes by solving technical challenges related to conversion tracking, first party data uploads, API development, AMC SQL query customization, and building custom audiences. You will work closely with our Ad Tech Account Executives to accelerate customer adoption … Experience designing and implementing cloud-based solutions (AWS or equivalent) or on-premise integrations- Experience with integration, testing and automation experience- Experience in software development using object-oriented programming languagesAmazon is an equal opportunities employer. We believe passionately that employing a diverse workforce is central to our success. ...

Mid-Level Full-Stack Engineer — Green Tech, Dog-Friendly

Location
United Kingdom
revolution, utilizing a tech stack that includes Python, React, GraphQL, and AWS. The ideal candidate will have proficiency in Python and React, familiarity with API development, and a collaborative approach to working in teams. Benefits include a dog-friendly office environment and support for ongoing career development. #J ...

Web Developer

Location
Bolton, England, United Kingdom
drive innovation. Requirements A minimum of 5 years of professional experience in web development. Strong experience with WordPress and WooCommerce. Demonstrated ability in API development and integration. Experience using SQL databases. Excellent problem-solving skills and attention to detail. Ability to work independently and as part ...

AI Algorithm Engineer (Agentic RAG & Document Intelligence)

Location
City of Edinburgh, Scotland, United Kingdom
year SCOTi LLMs RAG Agentic RAG SQL APIs Knowledge graphs Skills Information theory Optimization Statistics Vibe coding Creative problem solving Collaboration Data engineering API development SQL NLP Information retrieval Knowledge graphs Experience Level Junior GBP 42,000 - 50,000/year Employment Type Full-time Three-year fully ...

DBA/Applications Support Analyst/Developer

Hiring Organisation
Kudos Partners
Location
Datchet, Berkshire, United Kingdom
Employment Type
Permanent
Salary
GBP 75,000 Annual
FinTech business, the role is hybrid - 1 day per week in the office. Key technical requirements; Proven hands-on website, mobile app support and development experience (ideally Angular or Big Commerce) Proven hands-on API development or support experience ETL tools experience Hands-on Azure ADF, logic ...

Full Stack Developer

Location
United Kingdom
fintech products used across the insurance market. You’ll work across the stack using Python, Django, SQL, and React , contributing to both new product development and ongoing application support. This is a hands-on role with real influence over how our products evolve. What you'll do Design, build … with stakeholders across the business and occasionally with clients Contribute to CI/CD pipelines using Azure DevOps The essential experience Python 5+ years API Integrations Strong SQL skills (MySQL or PostgreSQL) Solid front-end fundamentals (HTML, CSS, JavaScript, React, Angular) Good understanding of software design principles and best ...

Backend Engineer – Data, APIs & Systems

Location
Greater London, England, United Kingdom
collaborate across data, product, and infrastructure teams. You bring 3+ years of backend experience in Java/Scala/Kotlin/Go, strong SQL, API development, and a bias for simple, scalable solutions. #J-18808-Ljbffr ...

Automation & Digital Transformation Architect

Location
Newbury, England, United Kingdom
grade software, while guiding engineering standards and CI/CD practices. The role requires leading cross-functional teams, deep Python expertise, and experience with API development, cloud #J-18808-Ljbffr ...

Senior ML Systems Architect: Scalable AI Platform

Location
Bristol, England, United Kingdom
successful candidate will bridge research and commercial deployment, focusing on performance, reliability, and maintainability. Key qualifications include expertise in TensorFlow and Python, experience in API development, and familiarity with MLOps practices. Joining means working on cutting-edge ML solutions and collaborating with experts across various fields. #J ...