201 to 225 of 480 REST Jobs

Senior Frontend Developer | React | JavaScript | Astro | Design Systems

Hiring Organisation
techstack Recruitment
Location
London Area, United Kingdom
looking for Senior-level experience as a Front-End Developer Strong JavaScript and/or TypeScript , with excellent HTML and CSS fundamentals Experience integrating REST APIs and third-party services Familiarity with modern frontend tooling (React, Astro, Vite or similar) Comfortable working from Figma and collaborating closely with designers Working ...

Mulesoft Developer

Hiring Organisation
Proactive Appointments
Location
Horley, Surrey, United Kingdom
Employment Type
Permanent
Salary
GBP 50,000 - 60,000 Annual
ideal for an engineer with a passion for API-led connectivity, problem-solving, and building secure, maintainable solutions. Key Skills: Strong experience with SOAP & REST APIs Deep understanding of OAuth 2.0, JWT, IP whitelisting , and API security best practices Experience implementing policy enforcement, threat protection & encryption Hands-on expertise with ...

Senior AI Platform Engineer - GCP

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
Responsibilities • Build and operate production-grade AI agents on GCP using Google ADK • Integrate AI systems with policy, claims and CRM platforms via REST/JSON APIs • Design scalable RAG pipelines (ingestion, chunking, vector search) • Implement evaluation, monitoring, A/B testing and cost/latency dashboards • Embed security, GDPR ...

Mid-Level .NET / Full Stack Developer – Hybrid – £450/day Outside IR35 | C# | Azure | Event-Driven Systems | Payments | API-Driven

Hiring Organisation
VirtueTech Recruitment Group
Location
London Area, United Kingdom
systems What we’re looking for Experience developing applications with .NET/C# Exposure to cloud platforms such as Azure Experience building or consuming REST APIs Understanding of microservices or event-driven architectures Experience working in agile engineering teams Interest in building high-scale transactional systems Mid-Level .NET/ ...

Head of Quality Engineering

Hiring Organisation
Infoplus Technologies UK Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £650 to £700 per day
Technical Expertise (Exceptional Level) 2025+ years in QE engineering, transformation, and automation leadership. Mastery of: o Playwright, Appium, Selenium, Cypress, Java o API Automation (REST Assured, Karate, Postman) o Performance (JMeter, LoadRunner) o Cloud native testing (Azure, AWS, GCP) o Test orchestration, CI/CD pipelines o TDM, environment strategy ...

D365 CRM/CE Technical Lead

Hiring Organisation
C4S Search Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£68,000 - £80,000 per annum
/CE and Power Platform. Advanced C# development including plugins, webhooks, and Custom APIs. Knowledge of JavaScript/TypeScript and CRM SDK/REST APIs. Experience delivering solutions in Agile environments. Understanding of Azure and cloud-based architectures. DESIRABLE EXPERIENCE: Dynamics CRM Customer Service and Marketing implementations. Experience building portals ...

Java Software Engineer

Hiring Organisation
Rezolve Ai
Location
Edinburgh, Scotland, United Kingdom
public cloud domain at scale, primarily with GCP. · Strong programming skills with a good working knowledge of Java, Spring Boot/Quarkus & REST APIs, hosting microservices in a container orchestration platform such as Kubernetes. Any experience of mobile native development would be beneficial. · Diverse technical experience and a proven ability ...

Lead AI Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
Sheffield, South Yorkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
Google's ADK. Develop scalable RAG pipelines spanning ingestion, text processing and vector search. Integrate AI systems into policy, claims and CRM platforms through REST and JSON APIs. Implement monitoring, evaluation, A/B testing and cost or latency dashboards. Contribute to broader AI architecture and help shape engineering patterns ...

AI Platform Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
agents on GCP using Google ADK. * Develop scalable RAG pipelines including ingestion, text processing, and vector search. * Integrate AI systems with internal platforms through REST and JSON APIs. * Implement evaluation frameworks, monitoring, and A/B testing across AI services. * Contribute to engineering design patterns, security practices, and technical documentation. ...

Junior Back-end Engineer

Hiring Organisation
ivee
Location
City of London, London, United Kingdom
experience (including internships or personal projects) in backend development Proficiency in at least one backend language (Node.js, Python, Go, etc.) Basic understanding of how REST APIs work Familiarity with databases and version control (e.g. Git) Strong problem-solving mindset and attention to detail A willingness to learn fast and take ...

Data Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
Norwich, Norfolk, East Anglia, United Kingdom
Employment Type
Contract
Contract Rate
From £400 to £450 per day
Proficiency in data modeling (conceptual/logical/physical), metadata, and governance patterns Familiarity with JSON-based configuration, API specs, and common integration styles (REST, batch files, streaming) Design Thinking & Pattern Literacy: Can select and tailor patterns (e.g., registry vs. consolidation, survivorship strategies, incremental vs. full sync) to business context ...

Senior Teamcenter Developer Teamcenter Migration Project

Hiring Organisation
Stackstudio Digital Ltd
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
From £500 to £525 per day
migration utilities using Java, C/C++ or Shell Strong understanding of SQL databases (Oracle/MSSQL) and query optimization Experience with Teamcenter APIs (REST, SOA) and integration frameworks Strong debugging, problem solving, and analytical skills Experience with legacy PLM (Teamcenter Enterprise) migrations (nice to have) Desirable Skills/Knowledge ...

Founding Engineer

Hiring Organisation
Explore Group
Location
City of London, London, United Kingdom
beyond. Core requirements: 3 plus years of engineering experience Strong in React and comfortable across the full JavaScript and TypeScript stack Backend experience building REST APIs using NestJS or Express Or Python Experience with MongoDB or similar databases Evidence of building independently, for example side projects, startups, open source work ...

Full Stack Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Lancashire, North West, United Kingdom
Employment Type
Permanent
Salary
£65,000
operational systems Working with Microsoft SQL Server to manage and structure business data Supporting systems hosted within Azure cloud services Designing and consuming REST APIs Writing clean, maintainable code and contributing to testing and documentation Working with internal teams to understand requirements and deliver practical technical solutions Tech Environment ...

SDET

Hiring Organisation
WeDoTech
Location
Croydon, Greater London, United Kingdom
Employment Type
Permanent
Salary
£70000 - £75000/annum
SDET role within Agile engineering teams - Strong automation experience using C# and .NET - Experience building, improving or maintaining automation frameworks - Experience working with REST APIs and tools such as RestSharp - Experience working with CI pipelines and Azure DevOps - Comfortable performing manual and exploratory testing where required - Experience testing desktop applications ...

Power Platform Developer

Hiring Organisation
Reality Solutions Ltd
Location
Hull, North Humberside, North East, United Kingdom
Employment Type
Permanent
Salary
£30,000
concepts Comfortable working independently on defined tasks Desirable Skills: Experience with embedded Canvas apps within Model-Driven apps Power Platform admin experience Integration experience (REST APIs, Azure Functions, SharePoint, etc.) Experience building reports (Power BI or in-app reporting) Exposure to Power Apps Component Framework (PCF) Experience supporting mobile-first ...

Data Engineer TV Advertising Data (FAST)

Hiring Organisation
Datatech Analytics
Location
London, United Kingdom
Employment Type
Permanent
Salary
£85,000
Azure Data Factory or equivalent Ability to write efficient, reusable scripts for transformation, validation, and automation Hands-on experience integrating data from APIs (REST, JSON), including automated data collection Solid understanding of data modelling best practices for analytics and dashboards Confidence working with large, complex datasets across multiple formats ...

Quality Assurance Test Engineer

Hiring Organisation
Atrium (EMEA)
Location
City of London, London, United Kingdom
including de-duplication, survivorship rules, and record resolution behaviour Develop and maintain test cases, traceability, and test evidence from requirements through to execution Test REST API interactions used for key generation, retrieval, archiving, and system integration Validate data quality and transformation outcomes across data platform stores Support automation ...

Oracle FDI Reporting Lead - SC Cleared

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
environments. Hands-on experience with FDI implementation or support, including knowledge of FDI data structures. Experience building advanced BIP and OTBI reports. Experience with REST/SOAP Web Services. Experience supporting FDI in public sector environments. Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business ...

ServiceNow Technical Consultant

Hiring Organisation
Eviden UK International Ltd
Location
United Kingdom
Employment Type
Permanent
highly desirable ServiceNow Certifications in all areas are highly desirable. Expertise with scripting languages such as PERL, JavaScript, Python, and Shell. Web service proficiency (REST, SOAP) as well as XML and JSON knowledge. Knowledge of relational databases (MySQL, MSSQL, Oracle) beneficial. We Care About Our Employees' Happiness By providing: Pension ...

Trading Data Engineer

Hiring Organisation
Frossell Recruitment
Location
Abingdon, Oxfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 per annum
work autonomously Desirable Exposure to energy markets, trading systems or financial market data Experience with Microsoft Azure services (e.g. Function Apps) Experience integrating REST APIs or event-driven data Familiarity with orchestration tools such as Azure Data Factory Basic awareness of trading concepts such as positions, P&L or market ...

Data Engineer

Hiring Organisation
Blatchford Ltd
Location
Basingstoke, Hampshire, South East, United Kingdom
Employment Type
Work From Home
e.g. MS SQL, Azure Cosmos DB. Skilled at optimizing large and more complicated SQL statements. Proficiency in Python and experience with PySpark Experience of REST API standards. Proficiency in writing clean, readable, and secure code for Azure backend services, i.e. functions, utility functions etc. Experience of Agile development methodologies Good ...

Senior IBMi Architect

Hiring Organisation
HCLTech
Location
Slough, England, United Kingdom
disruption during Migration phases and Lead legacy system sunset governance. Interfaces & Integration Architecture Design and govern integrations between AS400 and enterprise ecosystems like APIs (REST/SOAP),MQ Series, event-driven integrations, batch interfaces, file-based integrations, Integrate with Digital platforms, Core banking systems, CRM/ERP systems, Payment gateways ...

Senior Data Engineer

Hiring Organisation
83zero
Location
City of London, London, United Kingdom
Synapse Analytics Azure Data Lake Storage Gen2 SQL Server Databricks Enhancements: Python (PySpark, Pandas) CI/CD (Azure DevOps) Infrastructure as Code (Terraform, Bicep) REST APIs GitHub Actions Desirable: Microsoft Fabric Delta Live Tables Power BI dataset automation DataOps practices What You’ll Bring Professional experience in data engineering ...

Senior FDE, Palantir

Hiring Organisation
Staffworx
Location
City of London, London, United Kingdom
/stream processing basics, data modelling, data quality and governance. Experience (or strong interest) in integrating Foundry with: Enterprise identity (SSO, SAML/OIDC) REST APIs and services Existing data platforms or warehouses Familiarity with modern software engineering practices: Version control and code review Automated testing CI/CD pipelines ...