376 to 400 of 440 REST Jobs

Senior Engineer

Hiring Organisation
&Dine
Location
London, England, United Kingdom
product and operations to deliver practical solutions Improve system performance, reliability, and developer workflows Front-end JavaScript/TypeScript Vue/Nuxt or similar REST API integration Solid CSS/SCSS/SASS State management and component-based development Unit/end-to-end Testing and Git workflows Experience with … Analytics tools like Mixpanel Back-end Node.js services and REST APIs PostgreSQL/MySQL and database design ORMs such as Sequelize Business logic, including payments, workflows, and permissions Infrastructure CI/CD pipelines (GitHub Actions or similar) Cloud platforms such as AWS Monitoring, logging, and production reliability AWS Amplify ...

Software Developer

Hiring Organisation
Urban Empire Recruitment
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£35,000 - £40,000 per annum
workflows with finance systems such as Sage Intacct (highly desirable), Dynamics, NetSuite, or other ERP/financial platforms Design and implement API-based integrations (REST/SOAP) to exchange data between internal and external systems Manage authentication methods including OAuth, API keys, and service accounts Data & SQL Write and optimise … solution design, and testing phases Essential Skills & Experience Hands-on experience with codeless/low-code BPA platforms Strong understanding of API concepts, including REST endpoints, JSON/XML payloads, and authentication Proficiency in MS SQL for querying, data modelling, and performance tuning Experience integrating with Finance/ERP systems ...

Java Full Stack Developer

Hiring Organisation
Syntax Consultancy Ltd
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£65000 - £70000/annum Bonus + Benefits
Working on a 'hybrid remote' basis from either Manchester. Working 5-7 days/month on-site with the option to work remotely for rest of the time. A chance to work with a leading global IT transformation business on a large-scale IT modernisation programmes for Government clients. Experience … Framework, Spring Boot Solid understanding of JavaScript: Angular and NodeJS strongly preferred Practical Micro services development experience Practical Relational Database development experience (e.g. PostgreSQL) REST APIs Strong understanding CI and DevOps technologies (Hands-on experience on Git, Jenkins, and Ansible preferred) Practical experience on AWS (ECS, EKS, API Gateway ...

Developer Golang

Hiring Organisation
CBTS
Location
City of London, London, United Kingdom
Client: Largest American Credit Card Company Location: Burgess Hill 3 days/week Years of Exp: 6-9 years Skills: Go, Java, Git, REST, Jenkins, NoSQL, Postgres/ql £40-£50/hr Inside IR35 Visa sponsorship is not available. We're looking for an enthusiastic, diligent Golang Software Engineer … type safe programming language (Golang Preferred but other experience can be considered) Comfortable/experienced with back-end micro-service architecture and communication, specifically REST and asynchronous messaging services (e.g., Kafka, RabbitMQ etc.) Comfortable/experience within a Scrum framework working with as part of a team to deliver business ...

Senior SharePoint Developer and Administrator

Hiring Organisation
Ryder Reid Legal Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Online, including rewriting legacy web parts using SPFx. Build custom SPFx web parts, extensions and integrations using TypeScript, JavaScript, React, HTML/CSS, and REST APIs. Develop and maintain SharePoint Online intranet structures including architecture, navigation, branding, and content design. Integrate SharePoint with internal systems and third-party platforms using … development and administration. Strong background migrating SharePoint 2016 to SE/Online. Proven SPFx development skills. Proficiency in TypeScript, JavaScript, React, HTML5, CSS3. Strong REST API and Microsoft Graph integration experience. Solid C#/.NET framework experience. Deep knowledge of SharePoint on-prem administration, performance tuning, patching and troubleshooting. Experience ...

Senior Full Stack Engineer (AWS Microservices & Integrations)

Hiring Organisation
Narwhal Labs
Location
City Of Bristol, England, United Kingdom
office-based role and candidates must be located in or within commutable distance of Bristol. Responsibilities: Design and build microservices behind API Gateway (REST/HTTP), running on Lambda and containerised workloads on EC2/Fargate Model multi-tenant data across DynamoDB and RDS (PostgreSQL), using S3 for object storage … Vitest, Postman/Newman or Pact Strong backend development in Node.js/TypeScript (Go or Python also welcome) and solid API design skills across REST, with GraphQL a plus Strong data modelling skills including NoSQL vs relational trade-offs, partitioning, indexing and migration strategies Proven experience building and consuming webhook ...

Security Architect (DevSecOps)

Hiring Organisation
Pontoon Solutions
Location
London Area, United Kingdom
development lifecycle. • Be able to develop threat models, attack trees, and embed security by design in product engineering effort. • Good understanding of web technologies, REST APIs, micro services, modern application development, and mobile apps. Good understanding of software architecture, dev-sec-ops, and network security. • Experience in browser security … generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention. ...

Senior Back End Engineer (Node.js/Typescript)

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
Nottingham, Nottinghamshire, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
with product, frontend and platform teams. Key responsibilities include: Designing, developing and maintaining scalable microservices using TypeScript and Node.js Building and supporting GraphQL and REST APIs for internal and external integrations Translating business requirements into robust technical solutions, architecture and documentation Championing code quality, automation, CI/CD and DevOps … best practices across the team YOUR SKILLS AND EXPERIENCE: You will bring strong capability in: TypeScript and Node.js development Microservices-based architectures GraphQL and REST API design Working with SQL and NoSQL databases Modern software development practices, including CI/CD, testing and automation THE BENEFITS: You will receive ...

Java Backend Developer (Banking)

Hiring Organisation
Ascendion
Location
Chester, Cheshire West and Chester, Cheshire, United Kingdom
Employment Type
Permanent, Contract
secure financial applications. Key Responsibilities: Design and develop backend services using Java and Spring Boot Build and enhance microservices-based applications Develop and integrate REST APIs for enterprise systems Work on event-driven architecture using messaging tools (e.g., Kafka) Collaborate with cross-functional teams in an Agile environment Support … applications Required Skills: Strong experience in Java (8/11/17) and Spring Boot Hands-on experience with Microservices architecture Experience with REST APIs and backend development Exposure to event-driven systems/Kafka (or similar tools) Experience with databases (SQL/NoSQL) Familiarity with CI/CD tools ...

Outsystems Developer

Hiring Organisation
Coltech
Location
City of London, London, United Kingdom
build responsive web and mobile applications using OutSystems (Service Studio) Develop workflow orchestration, process automation, and data models Implement integrations with enterprise systems using REST/SOAP APIs and external services Develop reusable components, UI patterns, and application logic Support testing, deployment, and environment promotion activities Troubleshoot performance issues … years’ experience in OutSystems development (Reactive or Traditional Web/Mobile) Strong understanding of low-code application architecture and delivery lifecycle Experience with integrations (REST, SOAP, APIs, OAuth, SQL) Good understanding of relational databases (SQL Server or Oracle) Knowledge of JavaScript and CSS for UI customisation Understanding of application security ...

Automation and AI Architect

Hiring Organisation
Intercity Technology Limited
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent
without compromising engineering discipline. Define and enforce clear policies for data handling, platform interoperability, and responsible use of intelligent tooling. Govern integration patterns using REST APIs, webhooks, and event-driven approaches. Provide constructive technical challenge to teams and stakeholders, calling out constraints that do not stand up to scrutiny. Technical … with Microsoft Power Platform , including Power Automate, Power Apps, and Dataverse. Automation and scripting experience using PowerShell and or Python. Experience working with C#, REST APIs, webhooks, and modern integration patterns. Proven ability to define and embed SDLC best practice across mixed professional and citizen development teams. Solid understanding ...

OutSystems Developer (Low-Code Orchestration)

Hiring Organisation
iBSC
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 Daily
reusable UI patterns and modules. Implement role-based access, security configurations, and performance optimisations. 2. Integration & API Management Integrate with Back End systems (REST/SOAP APIs, databases, SAP, CRM). Build and maintain integrations ensuring reliability and security. Design asynchronous flows, event-driven architectures, and external data connectors. 3. … experience in OutSystems development (Traditional or Reactive Web/Mobile). Strong understanding of low-code application architecture and life cycle. Experience with integrations (REST, SOAP, OAuth, SQL, message queues). Basic understanding of CSS, JavaScript, and relational databases (SQL Server, Oracle). Knowledge of application security, performance tuning ...

OutSystems Developer (LowCode Orchestration)

Hiring Organisation
Infoplus Technologies UK Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £400 to £450 per day
experience in OutSystems development (Traditional or Reactive Web/Mobile). Strong understanding of low-code application architecture and lifecycle. Experience with integrations (REST, SOAP, OAuth, SQL, message queues). Basic understanding of CSS, JavaScript, and relational databases (SQL Server, Oracle). Knowledge of application security, performance tuning, and scalable … integrations, and reusable UI patterns and modules. Implement role-based access, security configurations, and performance optimisations. 2. Integration & API Management Integrate with backend systems (REST/SOAP APIs, databases, SAP, CRM). Build and maintain integrations ensuring reliability and security. Design asynchronous flows, event-driven architectures, and external data connectors. ...

Senior Java Software Engineer

Hiring Organisation
Bentley Whitaker Search and Selection
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £85,000 per annum
Senior Java Software Engineer - Java Developer, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Senior Java Software Engineer role:- You will be joining a fast-growing, research-driven company building an artificial intelligence using … latest tech, generous annual leave and an amazing office with a balcony overlooking Notting Hill. Senior Java Software Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence +++++Applicants must have the right to work in the UK, no sponsorship is offered for this role++++++++ ...

React / React Native Developer

Hiring Organisation
Rise Technical Recruitment
Location
Spalding, Lincolnshire, United Kingdom
Employment Type
Permanent
supporting, designing and developing the web through React. A primary focus will be implementing clean and scalable code using TypeScript and JavaScript, integrate REST APIs and native modules, while contributing to planning and code reviews, and ensure adherence to security standards using Git-based workflows and CI/CD. … mobile security standards and best practices. Use Git workflows and CI/CD in an agile environment. Integrate with third-party and custom REST APIs. The Person Previous commercial experience with React and React Native. Strong proficiency in TypeScript, JavaScript, and modern development practices. Experience with mobile state management (e.g. ...

Data Integration Engineer

Hiring Organisation
LM RECRUITMENT SOLUTIONS LTD
Location
Ilkeston, Derbyshire, East Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
design (well-modelled, scalable, governed, and optimised for analytics and AI consumption). You will work with integration technologies such as Boomi, MuleSoft, REST/SOAP APIs, EDI, and SFTP, and contribute directly to shaping and delivering our data strategy. This includes improving efficiency and reliability across a multi-tenancy … practice, and integration standards across the organisation. Key Responsibilities Design, develop, and maintain integrations using Boomi , MuleSoft , and API-driven patterns. Build robust, scalable REST and SOAP APIs , including reusable connectors and integration components. Deliver and manage integrations into Microsoft Fabric using OneLake architecture and medallion (bronze/silver/ ...

Salesforce Integration Developer

Hiring Organisation
Amass Technology
Location
United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
banking systems, and external third-party platforms. Key Responsibilities Design, build, and maintain integrations between nCino, Salesforce, and external systems Develop and implement APIs (REST/SOAP) and integration services Work closely with architects to translate solution designs into robust technical implementations Build and support data flows between CRM, banking … Required Experience Strong hands-on development experience within Salesforce ecosystems Proven experience delivering system integrations (APIs, Middleware, ETL, event-driven architecture) Solid understanding of REST/SOAP services and data transformation techniques Experience working in enterprise-scale or regulated environments (eg, financial services preferred) Strong debugging and problem-solving skills ...

Developer, Quality Engineering

Hiring Organisation
Connect Auto
Location
United Kingdom
platform. Responsibilities Execute manual functional, regression, and exploratory testing across our back-office platform ( IMS ), public-facing vehicle locator sites, and supporting services. Test REST APIs, integration endpoints, and backend workflows directly, validating contracts, edge cases, and data integrity. Author and maintain test cases in Qase, our test management platform. … processes, tooling, and standards. Required experience Professional software development experience, with strong proficiency in TypeScript or a comparable language. Sound understanding of REST APIs, HTTP, JSON, and authentication patterns (OAuth/JWT). Working knowledge of relational and/or NoSQL databases. Familiarity with modern web application architecture (React ...

Pega Architect

Hiring Organisation
Mastek
Location
Reading, England, United Kingdom
Product Owners Support Agile delivery (Scrum/Kanban) across sprints Troubleshoot complex technical issues 🔗 Integration & System Design Design integrations with external systems (APIs, REST/SOAP services) Work with enterprise architecture teams on system alignment ✅ Quality & Governance Enforce Pega standards, guardrails, and coding best practices Ensure high-quality deliverables through … Required Skills & Experience Strong hands-on experience with the Pega Platform Expertise in: Case Management Decisioning Workflows UI (sections, harnesses) Experience with integration technologies (REST, SOAP, messaging) Solid understanding of Agile delivery methods Strong problem-solving and leadership skills 🔹 Preferred Qualifications Pega certifications: CSA (Certified System Architect) CSSA (Senior System ...

C# / .Net Software Engineer (Freelance / contractor)

Hiring Organisation
Qim info
Location
London Area, United Kingdom
layer connecting multiple internal and external systems within a complex energy trading environment. 💼 Required technical skills: API & Integration Architecture: Strong expertise in API integration, REST API design and exposure, interface-driven architectures, integration-heavy environments, abstraction layers, system decoupling Backend Development: .NET Core, C#, API services, integration services Architeture & Platforms … profile: 🔹 Experience in Trading/Finance/Energy environments 🔹 Senior API/Integration expert with a strong architectural mindset, 🔹 Solid experience designing and implementing REST and legacy integrations, 🔹 Strong background in .NET Core and Microsoft Stack 🔹 Structured, rigorous 🔹 Excellent communication skills with technical stakeholders, 🔹 Comfortable working mainly with technical teams ...

Senior Backend Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
Derbyshire, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
involved in the following: Design, build, and maintain scalable backend services within a microservices architecture. Develop high-quality APIs using GraphQL and REST to support web and mobile applications. Work closely with product, frontend, and platform teams to deliver end-to-end solutions. Contribute to code quality, performance, and reliability … experience: Strong commercial experience with TypeScript and Node.js. Proven ability to build and maintain microservices-based systems. Experience designing and consuming GraphQL and REST APIs. Solid understanding of SQL and NoSQL databases. Good knowledge of the full software development lifecycle, including testing and automation. A collaborative mindset and passion ...

AWS API Technical Architect

Hiring Organisation
Stealth IT Consulting
Location
United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
Technical Architect to design secure, scalable API and microservices solutions across enterprise applications. Key Responsibilities Design serverless and microservices architectures on AWS Define REST API standards and integration patterns Support system/data integration across distributed services Assess technical debt and recommend modernisation approaches Work with product, delivery, and security … Technical Architect to design secure, scalable API and microservices solutions across enterprise applications. Key Responsibilities Design serverless and microservices architectures on AWS Define REST API standards and integration patterns Support system/data integration across distributed services Assess technical debt and recommend modernisation approaches Work with product, delivery, and security ...

Senior Sharepoint Developer

Hiring Organisation
Larbey Evans
Location
City Of London, England, United Kingdom
Lead migration of SharePoint 2016 on-premise solutions to SE and Online Build SPFx web parts, extensions, and integrations using TypeScript, JavaScript, React, and REST APIs Manage updates, patches, and service packs to ensure stability, security, and compliance Administer service and web applications, site collections, permissions, authentication, and governance Provide … SharePoint 2016 on-premise Strong expertise in SPFx development and modern front-end technologies (TypeScript, JavaScript, React, HTML5, CSS3) Experience integrating SharePoint solutions using REST APIs, Microsoft Graph, C#, and .NET Hands-on management of on-prem SharePoint environments, including patching, upgrades, performance tuning, and troubleshooting Experience with Business Connectivity ...

AI Engineer

Hiring Organisation
Robert Walters
Location
Bolton, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
outputs Build and maintain automated workflows using tools such as n8n or similar platforms Integrate AI solutions with internal and external systems via REST APIs and webhooks Deploy AI solutions into production and monitor ongoing performance Continuously refine solutions based on feedback, metrics, and operational data Ensure solutions meet data … similar) Hands-on experience with prompt engineering and optimisation Strong understanding of large language models in production scenarios Practical experience integrating systems using REST APIs and webhooks Experience working with structured and semi-structured data Strong analytical and problem-solving skills Ability to communicate complex technical concepts clearly ...

Full Stack Java Developer

Hiring Organisation
Brio Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500/hour
scalable Java-based applications across the programme Build and maintain cloud-native solutions on AWS, applying well-architected principles throughout Design, develop, and test REST APIs to a high standard, ensuring performance, reliability, and security Use Postman for API testing, documentation, and validation across development and test environments Contribute … demonstrable senior-level Java development experience on complex, enterprise-scale programmes Solid AWS experience across core services including EC2, Lambda, S3, and RDS Proven REST API design and development experience, with strong understanding of API security and governance Proficient in Postman for API testing and documentation Experience working in Agile ...