1,301 to 1,325 of 1,446 REST Jobs in England

CONTRACT BACKEND ENGINEER – INSIDE IR35

Location
Manchester, England, United Kingdom
enterprise systems and business process automation. WHAT YOU’LL BE DOING Designing and building scalable backend services, primarily using Python Developing and integrating secure REST APIs across enterprise applications and AI services Working with Java and Node.js across the wider technology environment Building cloud-native services and solutions within … WHAT WE NEED FROM YOU Strong commercial Python backend engineering experience Strong GCP/Google Cloud Platform experience Experience with Java and Node.js Strong REST API and microservices experienceExperience with Kafka, PubSub or event-driven architectures Experience delivering solutions within large-scale enterprise environments Experience working with AI, Generative ...

CONTRACT BACKEND ENGINEER – INSIDE IR35

Location
Leeds, England, United Kingdom
enterprise systems and business process automation. WHAT YOU’LL BE DOING Designing and building scalable backend services, primarily using Python Developing and integrating secure REST APIs across enterprise applications and AI services Working with Java and Node.js across the wider technology environment Building cloud-native services and solutions within … WHAT WE NEED FROM YOU Strong commercial Python backend engineering experience Strong GCP/Google Cloud Platform experience Experience with Java and Node.js Strong REST API and microservices experienceExperience with Kafka, PubSub or event-driven architectures Experience delivering solutions within large-scale enterprise environments Experience working with AI, Generative ...

Client Support Engineer

Location
Greater London, England, United Kingdom
data, network, or environmental issues. Troubleshoot integrations between Intapp Time and clients' practice-management or financial-management systems using SQL, stored procedures, SOAP/REST APIs, data mappings, service accounts, and integration logs. Support issues involving Intapp Integration Service (Dell Boomi) and Intapp Integrate, including schedules, connectors, mappings, credentials, queues … root cause. Working knowledge of relational databases and SQL; Microsoft SQL Server and T‐SQL experience is highly desirable. Working knowledge of SOAP and REST APIs, HTTP, authentication, JSON/XML payloads, and common integration or connectivity issues. Excellent written and verbal communication skills, with the ability to explain technical ...

Scala Data Engineer - Contract - SC Clearance - London

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£530 - £580/day insideIR35
APIs supporting fraud detection and data integrity. Responsibilities: * Design and develop scalable, secure and low-latency backend services. * Develop clean, testable Scala code and REST APIs. * Work with databases and AWS services. * Improve and modernise existing applications and services. * Collaborate with product owners, business analysts and data engineers. * Support production … services and contribute to incident resolution. * Work within an Agile & Continuous Integration. Skills and Experience: * Scala * Play Framework or MVC/REST API frameworks * SQL/Databases * AWS * Continuous Integration * Agile methodologies * API design and development * Testing and automation * Production support/SRE awareness * SC Security Clearance It would ...

Power Platform Developer

Location
Wolverhampton, England, United Kingdom
solutions using Power Apps, Power Automate, and Power BI Build automation and improve business processes Integrate Microsoft 365, Dataverse, and third-party systems via REST APIs Support and enhance .NET/C# applications Troubleshoot technical issues across systems and integrations Produce technical documentation and support testing Work closely with stakeholders … deliver effective solutions Skills & Experience Strong experience with Microsoft Power Platform Knowledge of SQL and relational databases Experience with REST APIs and system integrations .NET/C# or object-oriented development experience Understanding of SDLC, testing, and version control Strong problem-solving and troubleshooting skills This is an excellent opportunity ...

Power Platform Developer

Hiring Organisation
Erin Associates
Location
Dudley, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
solutions using Power Apps, Power Automate, and Power BI Build automation and improve business processes Integrate Microsoft 365, Dataverse, and third-party systems via REST APIs Support and enhance .NET/C# applications Troubleshoot technical issues across systems and integrations Produce technical documentation and support testing Work closely with stakeholders … deliver effective solutions Skills & Experience Strong experience with Microsoft Power Platform Knowledge of SQL and relational databases Experience with REST APIs and system integrations .NET/C# or object-oriented development experience Understanding of SDLC, testing, and version control Strong problem-solving and troubleshooting skills This is an excellent opportunity ...

Lead Software Engineer - Umbraco

Location
Greater London, England, United Kingdom
will be delivered in. You produce estimates that state clearly what is in scope, what is out of scope and what assumptions the numbers rest on. You manage client expectations about the process of agile delivery and what they should expect to see at the end of each sprint. … equivalent managed hosting experience, including environment strategy and deployment workflow Major version upgrade planning and delivery on live platforms API design and consumption, REST and GraphQL, including third‐party integrations SQL Server and efficient data querying in a web application context Modern front‐end development, including component‐based approaches ...

Contract React JS Engineer

Hiring Organisation
C4S Search Ltd
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
scalable and user-friendly platform within a fast-paced delivery timeline. Key responsibilities include: Building a modern React-based web application Developing and consuming REST APIs Collaborating with backend engineers to define API contracts Creating intuitive user experiences for non-technical business users Contributing to front-end architecture and technical … decisions Writing clean, maintainable and high-quality code Required Skills & Experience Strong commercial experience with React JS Experience integrating and consuming REST APIs Strong JavaScript/TypeScript development skills Experience building scalable, production-grade web applications Ability to work autonomously and deliver with minimal supervision Strong communication and stakeholder engagement ...

AI Engineer

Hiring Organisation
Adecco
Location
Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £800/day
Agents and Agentic workflows to automate business processes. Create effective prompts and implement prompt engineering best practices. Integrate AI services with enterprise systems via REST APIs. Develop scalable solutions using Python and SQL. Test, evaluate, and improve AI model performance and reliability. Work closely with engineering, data, and business teams … Retrieval-Augmented Generation). Experience developing AI Agents or Agentic AI applications. Strong Python development skills. Strong SQL skills. Experience integrating applications using REST APIs. Proven prompt engineering experience. Experience deploying AI solutions into production environments. Excellent stakeholder management and communication skills. Desirable Experience Knowledge Graphs. LangChain and/ ...

Principal Java Engineer - Backend Platform

Location
Basingstoke, England, United Kingdom
aggregation layers that normalise tracking outputs, store them in a data lake, and make them available to downstream consumers via clean API contracts. REST and WebSocket APIs that serve both a live data product for immediate consumption and an insights portal for historical analysis and performance comparison. Observability and reliability … bolted on. The platform needs to run 24/7 without on-site support. Key Responsibilities Design and build backend services and APIs (REST/WebSocket) supporting data ingestion, transformation, and delivery to frontend and downstream consumers, with particular attention to latency and throughput given real-time processing requirements. ...

Principal Java Engineer - Backend Platform

Location
Bristol, England, United Kingdom
aggregation layers that normalise tracking outputs, store them in a data lake, and make them available to downstream consumers via clean API contracts. REST and WebSocket APIs that serve both a live data product for immediate consumption and an insights portal for historical analysis and performance comparison. Observability and reliability … bolted on. The platform needs to run 24/7 without on-site support. Key Responsibilities Design and build backend services and APIs (REST/WebSocket) supporting data ingestion, transformation, and delivery to frontend and downstream consumers, with particular attention to latency and throughput given real-time processing requirements. ...

Principal Java Engineer - Backend Platform

Location
Greater London, England, United Kingdom
aggregation layers that normalise tracking outputs, store them in a data lake, and make them available to downstream consumers via clean API contracts. REST and WebSocket APIs that serve both a live data product for immediate consumption and an insights portal for historical analysis and performance comparison. Observability and reliability … bolted on. The platform needs to run 24/7 without on-site support. Key Responsibilities Design and build backend services and APIs (REST/WebSocket) supporting data ingestion, transformation, and delivery to frontend and downstream consumers, with particular attention to latency and throughput given real-time processing requirements. ...

AI Engineer

Hiring Organisation
McGregor Boyall Associates Limited
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
optimise AI performance and accuracy. Implement AI solutions using frameworks such as LangChain , LangGraph , and MCP . Integrate AI services and enterprise platforms through REST APIs and cloud-native architectures. Deliver scalable, secure, and reliable solutions using Python , SQL , Git , and CI/CD practices. Test, evaluate, and continuously improve … Prompt Engineering , Context Engineering AI Agents , Agentic AI , Multi-Agent Systems LangChain , LangGraph , Model Context Protocol (MCP) RAG , Embeddings , Vector Databases Python , SQL , REST APIs Git , CI/CD Cloud Platforms (Azure, AWS, or GCP) LLM & AI Agent Testing and Evaluation Desirable Skills Knowledge Graphs Semantic Search Responsible AI Token ...

Senior Developer - Outsystems

Hiring Organisation
Som3
Location
Buckinghamshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £65000/annum
queries and stored procedures using Microsoft SQL Server. Deliver medium to high-complexity features and epics with minimal supervision. Build and manage integrations using REST APIs, SFTP and Integration Studio. Lead and participate in peer code reviews, providing technical guidance and mentoring to other developers. Contribute to application architecture, infrastructure … delivery. About You 3-5 years' professional software development experience, with significant experience using OutSystems. Strong understanding of application and system architecture. Experience with REST APIs, SFTP and modern integration technologies. Strong Microsoft SQL Server skills, including complex query development and optimisation. Understanding of infrastructure, deployments, version control, environments ...

Senior Test Automation Engineer

Location
Greater London, England, United Kingdom
data integrity and expected business outcomes throughout customer journeys.API & Integration TestingDevelop and maintain automated API test suites.Validate integrations between Dynamics CRM and external platforms.Test:REST APIsMiddleware integrationsMessaging servicesEvent-driven architecturesThird-party systemsYour Skills:Microsoft Dynamics 365 CRMProven experience testing Microsoft Dynamics 365 CRM and Dataverse solutions.Strong understanding of:Model-Driven … frameworks.Extensive automated regression testing experience.Experience with one or more automation tools:PlaywrightSeleniumCypressLeapworkUiPathEquivalent automation platformsAPI & Integration TestingExperience with:PostmanREST AssuredSoapUISimilar API testing toolsTesting integrations involving:REST APIsMiddleware solutionsMessaging platformsEvent-driven systemsDevOps & CI/CDExperience working with:Azure DevOpsGitHubCI/CD PipelinesUnderstanding of automated quality gates and deployment validation.Data ValidationKnowledge of:SQLFetchXMLDataverse ...

Staff Engineer Java Spring Boot AWS

Location
Greater London, England, United Kingdom
design through to delivery Developing scalable Java applications using Spring Boot and microservices Modernising and migrating legacy systems to AWS Designing and working with REST APIs and distributed systems Introducing and improving CI/CD and DevOps practices Providing technical expertise and guidance to clients and engineering teams Location/… strong Java development skills including multi-threading and concurrency You have experience with Spring Boot and microservices environments You have a good knowledge of REST APIs You have a good understanding of AWS You have a thorough understanding of software development and Computer Science fundamentals such as Object Oriented Programming ...

Salesforce Engineer

Location
Bradford, England, United Kingdom
Salesforce security Metadata-based deployment Component-based development Debugging, logs and platform telemetry MuleSoft and engineering practises Mule 4 applications API-led integration DataWeave REST and SOAP APIs MUnit testing Anypoint tooling Automated build, testing and deployment Essential experience You’ll need: Hands-on professional software development experience using Salesforce … security or metadata-based deployment, or working knowledge of MuleSoft development, including relevant experience in areas such as Mule 4, API-led integration, DataWeave, REST or SOAP APIs, MUnit or Anypoint tooling. The ability to produce clean, maintainable and well-documented code or configuration using agreed engineering standards. Confidence using ...

Oracle Cloud Technical Consultant

Location
East Midlands, England, United Kingdom
areas: Ability to design and develop complex integrations between Oracle Cloud and third-party systems utilising OIC (Oracle Integration Cloud), BI Extracts, SOAP/REST APIs and other integration platforms and methods. Experience of data conversion activities using HDL/FBDI/API's to load data into Oracle Cloud. … File Based Data Import). BI Publisher, OTBI and the wider Oracle Analytics Cloud capabilities. Oracle Integration Cloud (OIC) Web Services: Experience with SOAP, REST APIs, and ATOM feeds. SQL/PL-SQL: Strong SQL skills for data analysis. OCI: Working with Oracle's Cloud infrastructure components. This role ...

Technical Lead - Backend (Java / Spring Boot)

Location
Leeds, England, United Kingdom
Lambda, ECS, EKS, MSK) Kubernetes, containerisation, infrastructure as code AI integrations, agentic development workflows, strong security practices Responsibilities Build Java services across REST APIs and Kafka pipelines with readable, maintainable, well‐tested code. Write tests as part of development, encouraging TDD approaches. Integrate with third‐party APIs (e.g., payment gateways … handle difficult client conversations when needed. Mentor, pair, and coach engineers to grow their skills. Qualifications Strong experience with Java and Spring Boot across REST APIs and event‐driven/Kafka systems. Passion for engineering quality: code reviews, automated tests, maintainability. Leadership that shares knowledge and raises ...

Technical Lead - Backend (Java / Spring Boot)

Location
Manchester, England, United Kingdom
Lambda, ECS, EKS, MSK) Kubernetes, containerisation, infrastructure as code AI integrations, agentic development workflows, strong security practices Responsibilities Build Java services across REST APIs and Kafka pipelines with readable, maintainable, well‐tested code. Write tests as part of development, encouraging TDD approaches. Integrate with third‐party APIs (e.g., payment gateways … handle difficult client conversations when needed. Mentor, pair, and coach engineers to grow their skills. Qualifications Strong experience with Java and Spring Boot across REST APIs and event‐driven/Kafka systems. Passion for engineering quality: code reviews, automated tests, maintainability. Leadership that shares knowledge and raises ...

Technical Lead - Backend (Java / Spring Boot)

Location
Greater London, England, United Kingdom
Lambda, ECS, EKS, MSK) Kubernetes, containerisation, infrastructure as code AI integrations, agentic development workflows, strong security practices Responsibilities Build Java services across REST APIs and Kafka pipelines with readable, maintainable, well‐tested code. Write tests as part of development, encouraging TDD approaches. Integrate with third‐party APIs (e.g., payment gateways … handle difficult client conversations when needed. Mentor, pair, and coach engineers to grow their skills. Qualifications Strong experience with Java and Spring Boot across REST APIs and event‐driven/Kafka systems. Passion for engineering quality: code reviews, automated tests, maintainability. Leadership that shares knowledge and raises ...

Senior Integration Specialist

Hiring Organisation
London North West University Healthcare NHS Trust
Location
Harrow, HA1 3UJ, United Kingdom
Salary
£63665.00 to £70887.00
Enterprise Systems architecture, design & integration Healthcare sector data standards (e.g. HL7 v2/v3/FHIR) Web technologies (e.g. web services, XML/JSON, REST API's.) Software development Able to analyse problems and business requirements in a logical fashion and to transform these to technical proposals Excellent analytical … Enterprise Systems architecture, design & integration Healthcare sector data standards (e.g. HL7 v2/v3/FHIR) Web technologies (e.g. web services, XML/JSON, REST API's.) Software development Lengthy and broad working experience of NHS acute care organisations or equivalent Experience of Intersystems HealthConnect. Experience developing integration solutions with ...

Power Platform Developer (Hybrid) - Dudley

Hiring Organisation
Circle Recruitment
Location
Dudley, West Midlands, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
year's experience working with Power Platform technologies Power Apps (Canvas & Model-Driven Apps), Power Automate, Power BI and Dataverse * Experience integrating systems using REST APIs, Dataverse & other third-party platforms * Good SQL database experience, including writing queries and understanding data structures/performance * Excellent stakeholder management experience … call the office and ask to speak to me Keywords: Power Platform/Power Apps/.NET/SQL/C#/Azure/REST APIs/Software Developer/Software Engineer/Dudley/Birmingham/Wolverhampton/Walsall Circle Recruitment is acting as an Employment Agency in relation ...

SC Cleared Pega Lead System Architect / Solution Architect

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£553/day £553 per day (inside IR35)
compliance with Pega guardrails and engineering best practice. Lead complex technical decision-making and resolve architectural and performance challenges. Design scalable integration patterns using REST APIs, connectors, services, data pages and enterprise integration technologies. Define authentication, authorisation, access control and security architecture. Ensure solutions meet performance, scalability, resilience, availability … Pega case management Application architecture Data modelling Enterprise integrations Strong knowledge of Pega design principles, guardrails and reusable architecture frameworks. Experience designing and implementing REST API integrations, services and connectors. Strong understanding of enterprise integration patterns. Experience designing secure Pega solutions including authentication, authorisation and role-based or attribute-based ...

S/4HANA - Coupa Integration Architect

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £598/day
integrations between Coupa and SAP S/4HANA for complex organisations, from design through cutover and Hypercare. Hands-on proficiency building and managing APIs (REST/JSON, OData), IDocs, and BAPIs, including schema design, error handling, and performance tuning. Strong knowledge of Coupa configuration in the context of integration (supplier … able to prioritise and meet challenging deadlines; credible, resilient, and comfortable challenging the status quo to drive the best integration outcomes. Technical: API Engineering (REST/OData), specification using OpenAPI/Swagger, Postman-based testing. SAP integration artefacts (IDoc types for vendor, PO, GR, invoice; BAPI/RFC; ALE; OData ...