1 to 25 of 38 Contract JSON Jobs in the UK

Integration Developer

Hiring Organisation
GCS
Location
Enfield, London, Enfield Town, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700/day
Strong SQL and T-SQL development skills. Experience designing and supporting ETL solutions. Hands-on experience with REST and SOAP integrations. Strong knowledge of: JSON XML Data Mapping Data Transformation API Integrations Experience troubleshooting and supporting production integration services. Experience working within Agile delivery environments. Desirable Skills MuleSoft Dell Boomi ...

ServiceNow Developer (SC Cleared)

Hiring Organisation
CPS Group (UK) Ltd
Location
England, United Kingdom
Employment Type
Contract
Contract Rate
GBP 450 - 475 Daily
Umbrella) Location: Remote, UK Start: ASAP (within 4 weeks) Duration: 6months + Specialism(s): ServiceNow, ITSM, CSA, CAD, JavaScript, REST APIs, SOAP APIs, JSON, XML, Service Catalog, Workflow Automation, Flow Designer, Business Rules, Incident Management, Change Management, Problem Management, Asset Management, CMDB, Integrations, Platform Administration, Troubleshooting, Technical Documentation, UK Security ...

ServiceNow Developer (SC Cleared)

Hiring Organisation
CPS Group (UK) Limited
Location
Nationwide, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £475/day
Umbrella) Location: Remote, UK Start: ASAP (within 4 weeks) Duration: 6+ Months Specialism(s): ServiceNow, ITSM, CSA, CAD, JavaScript, REST APIs, SOAP APIs, JSON, XML, Service Catalog, Workflow Automation, Flow Designer, Business Rules, Incident Management, Change Management, Problem Management, Asset Management, CMDB, Integrations, Platform Administration, Troubleshooting, Technical Documentation, UK Security ...

Data & Analytics Data Engineer (Fixed Term Contract till September 2027)

Hiring Organisation
Motability Operations
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Contract, Part Time
PostgreSQL Strong understanding of dimensional modelling and star schema design Excellent SQL development and data manipulation skills Experience working with common data formats, including JSON, XML and CSV Proven experience translating business requirements into robust BI and data solutions Experience delivering within an Agile development environment Practical experience developing ...

Network Engineer

Hiring Organisation
Summer Browning Associates
Location
Glasgow, City of Glasgow, United Kingdom
Employment Type
Contract
Contract Rate
£0.00 - £0.01/day
load balancing. Strong Ansible experience, including playbooks, roles, inventories and automation workflows. Scripting experience with Python, PowerShell or Bash. Experience with Git, REST APIs, JSON/YAML, IaC and CI/CD. Experience supporting on-premises and cloud networking, resilience, high availability and disaster recovery. Strong troubleshooting, documentation and stakeholder ...

Senior Java Developer

Hiring Organisation
TXP
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
£0.00 - £550 per day
Skills & Experience Strong commercial experience with Java Extensive experience developing REST APIs using Spring Boot Experience writing unit tests using JUnit Strong understanding of JSON structures and data formats Hands-on experience with Kubernetes , including: Containerising applications Deploying and managing microservices Troubleshooting deployments within containerised environments Experience working within Agile ...

CRM Data Engineer

Hiring Organisation
Experis
Location
Farnborough, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £800/day
improve data synchronisation Experience designing and implementing data cleansing and duplicate management routines Strong understanding of REST APIs and system integrations Experience working with JSON and XML data formats Experience consuming and integrating with RESTful APIs Understanding of API authentication and security principles Experience using tools such as Postman ...

Contract Quality Assurance Engineer

Hiring Organisation
Deerfoot Recruitment Solutions Limited
Location
Hounslow, London, United Kingdom
Employment Type
Contract
Contract Rate
£340 - £380/day
control, baggage or ramp); safety-critical or regulated systems; Playwright, Selenium, Robot Framework, Cypress, Karate or Appium; Postman or SOAP UI; Jenkins and GitHub; JSON, SQL, Kafka or Grafana; performance, resilience or security testing; Python or Java; ISTQB; testing AI-powered or agentic capabilities Ready to Apply? If you want ...

Dynamics 365 CE Developer

Hiring Organisation
Morson Edge
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - 550 per day
Automate flows and Canvas Apps Strong skills in Dynamics 365 CRM configuration, customisation, and integration capabilities Expertise in integration technologies like Logic Apps, HTTP, JSON Proficiency in programming languages such as .NET, C#, JavaScript Development and Project Leadership Experienced in developing Dynamics plugins and enhancing forms with JavaScript and HTML ...

Quality Engineer

Hiring Organisation
TXP
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£465 - £466/day Inside IR35
Docker Kubernetes Accessibility WCAG Wave Axe Technology Stack Front End Remix React JavaScript Back End Java Spring .NET Data & Messaging MongoDB Oracle RabbitMQ JSON ...

Senior Java Engineer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£575 - £595/day inside ir35
Auxiliary Self-Assessment Solutions (ASAS) programme - including the Historical Records Store (HRS). What you'll be working with: Java & Spring RabbitMQ & JSON MongoDB & Oracle Python/scripting AI technologies & AI-assisted development System prompt engineering Git/GitLab Agile/Scrum delivery Working across the wider product stack ...

Integration Developer C#,.Net (SC Cleared, Public Sector)

Hiring Organisation
GCS
Location
Exeter, Devon, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day
APIs to facilitate service-oriented and event-driven architecture across systems. Data Transformation and Mapping: Implement data transformation logic to convert between formats like JSON, XML, and CSV. Design reusable components and mappings to streamline data flow between systems with different schemas or protocols. Testing and Debugging: Perform unit, integration ...

Integration Developer (SSIS Package Integration) - SC Active

Hiring Organisation
GCS
Location
Enfield, London, Enfield Town, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600/day
SSMS, Azure Data Factory, SSIS, Logic Apps Proficiency in programming languages such as SQL. Strong understanding of data formats, protocols, and standards (e.g., JSON, XML, REST, SOAP). Excellent problem-solving skills and attention to detail with a focus on delivering high-quality integration solutions. Strong communication and interpersonal skills ...

PRINCIPAL SECURITY ENGINEER - UP TO £900 (OUTSIDE IR35) CONTRACT

Hiring Organisation
Secure Recruitment Ltd
Location
North London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £900 per day
North-South Traffic; Application Communication Flows; Cloud Networking; Network Telemetry & Packet-Level Investigation. Automation & Engineering Skills acrossPython, PowerShell (or comparable Scripting Languages); REST APIs; JSON/YAML; Git (or comparable Source-Control Platforms; Infrastructure-as-Code (Terraform or equivalent); CI/CD Tooling; Automated Configuration Management; Configuration Testing & Validation; Security ...

Site Reliability Engineer

Hiring Organisation
JAM Recruitment Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 700 - 750 Daily
Microsoft SQL Server (MSSQL) database administration, following industry best practices. Hands-on experience with identity brokers and modern authentication/authorisation mechanisms (e.g., JSON Web Tokens, PKI). Strong knowledge of Infrastructure as Code (IaC) tools such as Ansible for Linux provisioning and configuration management. Experience working with containerisation technologies ...

Technical Business Analyst

Hiring Organisation
Deerfoot Recruitment Solutions Limited
Location
Stanwell Moor, Middlesex, United Kingdom
Employment Type
Contract
Contract Rate
GBP 350 - 420 Daily
airport operations (flight operations, weight and balance, load control, baggage or ramp), mission-critical, safety-critical or regulated systems, Postman or SOAP UI, JSON and log analysis, AI-DLC practices, AI-powered or agentic software Apply today with your CV for this Technical Business Analyst contract ...

Technical Business Analyst

Hiring Organisation
Deerfoot Recruitment Solutions Limited
Location
Hounslow, London, Stanwell Moor, Surrey, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £420/day Hybrid Working
airport operations (flight operations, weight and balance, load control, baggage or ramp), mission-critical, safety-critical or regulated systems, Postman or SOAP UI, JSON and log analysis, AI-DLC practices, AI-powered or agentic software Apply today with your CV for this Technical Business Analyst contract ...

IBM Netcool / Observability Technical Lead

Hiring Organisation
Deerfoot Recruitment Solutions
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£780 - £830 per day
communication and stakeholder management with both technical and non-technical audiences Desirable: IBM Tivoli Monitoring (ITM), Dynatrace, IBM Instana or OpenTelemetry, REST APIs/JSON/XML, cloud monitoring across AWS, Azure or GCP, container and Kubernetes monitoring, SRE practices, financial services or regulated environment experience, and leading technical improvement ...

Fullstack Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£50 - £60/hour
experience with a solid grounding in computer science fundamentals. Core Technical Stack: Strong working knowledge of JavaScript, TypeScript, React, and Java, alongside REST APIs, JSON, and relational databases. Cloud & Tools: Basic understanding of cloud infrastructure concepts, specifically AWS. Mindset & Collaboration: Great team communication, a customer-focused approach to problem-solving ...

iSO Engineer

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£425 - £500/day - Hybrid / Inside IR35
SwiftUI Solid knowledge of Core Data, Core Animation, Core Location, AVFoundation Strong understanding of MVC, MVVM, VIPER, or Clean Architecture Proficiency in RESTful APIs, JSON/XML, and third-party integrations Experience with Push Notifications, Background Tasks, App Lifecycle Management Version control with Git/GitHub/GitLab Debugging, performance ...

Android Developer x 2 - FinTech

Hiring Organisation
Sanderson Recruitment
Location
South West, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £650 per day
Experience with dependency injection frameworks such as Hilt or Dagger . Proficiency with Coroutines and asynchronous programming. Experience consuming REST APIs and working with JSON data. Familiarity with Git-based source control and Agile delivery methodologies. Strong understanding of mobile application security and performance optimisation. Desirable Experience Experience working within ...

AI Full Stack Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £388/day
Weeks, 2 Days) Hours: 40 hours/week Rate: 291 PAYE/388 Umbrella Core Technical Stack Programming & APIs: Python, RESTful API development, JSON Schema, Pydantic. AI & LLMs: Gemini, OpenAI, Claude. Frameworks & Orchestration: Google ADK, LangChain, LangGraph. Data & Search: AWS OpenSearch (Indexing and Vector embeddings - Highly emphasized ), Database Architecture (Intermediate ...

ForgeRock Developer - 12-Month Contract - Inside IR35 - Hybrid (Glasgow, 3 days onsite)

Hiring Organisation
Hamilton Barnes
Location
Glasgow, Lanarkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
2.0, OpenID Connect, SAML 2.0, LDAP, JWT, and MFA, plus identity federation and access management solutions Proficiency in Java, JavaScript, Groovy, REST APIs, and JSON Experience with LDAP directories and directory services management, plus authentication and authorisation frameworks Linux/Unix environment experience with Shell Scripting, and strong troubleshooting ...

iOS Engineer

Hiring Organisation
LA International Computer Consultants Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 400 - 450 Daily
SwiftUI * Solid knowledge of Core Data, Core Animation, Core Location, AVFoundation * Strong understanding of MVC, MVVM, VIPER, or Clean Architecture * Proficiency in RESTful APIs, JSON/XML, and third-party integrations * Experience with Push Notifications, Background Tasks, App Lifecycle Management * Version control with Git/GitHub/GitLab * Debugging, performance ...

Backend & Event Streaming Engineer

Hiring Organisation
eTeam Workforce Limited
Location
Northampton, Northamptonshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 402 Daily
exactly-once semantics. Experience in event sourcing and event-driven architectures, including replay-safe processing and state management. Strong understanding of REST APIs, JSON Schema, and secure service-to-service communication. Expertise in JUnit, Maven/Gradle, mocking frameworks, and disciplined TDD practices. Experience with Docker, Docker Compose, and GitLab ...