Contract JSON Jobs in the UK

1 to 25 of 47 Contract JSON Jobs in the UK

ServiceNow Automation Analyst

Gloucester, Gloucestershire, South West, United Kingdom
Stackstudio Digital Ltd
CSM Experience with ServiceNow Flow Designer, Workflow Editor, and IntegrationHub Knowledge of scripting languages like JavaScript and familiarity with Glide API Experience with web technologies (REST/SOAP, XML, JSON) Strong problem-solving, analytical, and communication skills Ability to work independently and in a cross-functional team environment ServiceNow Certified System Administrator (CSA) is required Additional certifications (e.g., Certified Application More ❯
Employment Type: Contract
Rate: From £350 to £375 per day
Posted:

C# Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
FDM Group
retaining and Drift monitoring in Azure with knowledge of Microsoft Azure Strong understanding of object-oriented programming and familiarity with front-end technologies like HTML, CSS, React and JavaScript, JSON Strong command of SQL for database management, query optimisation and No SQL databases Experience in Python Programming and data visualisation using PowerBI or similar tools Exposure to applying ML algorithms More ❯
Employment Type: Contractor
Rate: £55,000 - £75,000 per annum
Posted:

Senior Java Developer

London, United Kingdom
Hybrid / WFH Options
Meritus
mode. Contribute to automated testing (C#) and infrastructure improvements (Docker, Ansible, Python, Linux). Required Skills: Proven experience with Java, Spring, Maven, Git, JUnit, and Web APIs (REST/JSON, XML/SOAP). Active SC clearance is essential. Strong background in complex or high-pressure software development environments. Ability to collaborate effectively within a diverse technical team and deliver More ❯
Employment Type: Contract
Rate: £550 - £650/day
Posted:

Senior Java Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Meritus Talent
mode. Contribute to automated testing (C#) and infrastructure improvements (Docker, Ansible, Python, Linux). Required Skills: Proven experience with Java, Spring, Maven, Git, JUnit, and Web APIs (REST/JSON, XML/SOAP). Active SC clearance is essential. Strong background in complex or high-pressure software development environments. Ability to collaborate effectively within a diverse technical team and deliver More ❯
Employment Type: Contractor
Rate: £550 - £650 per day
Posted:

Guidewire Developer

London, United Kingdom
Stackstudio Digital Ltd
support new opportunities. What are we looking for? 3+ years software development experience, including: JAVA 5/J2EE, ReactJS, Web Services, XML, SQL, Gradle, Spring, Hibernate, Castor, REST/JSON and Enterprise Messaging System. Using configuration management tools like Git, Tortoise SVN, Source Tree, Perforce, Plastic and ticket management tools like Azure DevOps, JIRA, HPQC. Knowledge of the AGILE methodology More ❯
Employment Type: Contract
Posted:

SSIS Developer

London, United Kingdom
Experis
knowledge of T-SQL (queries, stored procedures, functions, indexing, performance tuning). Experience working with relational databases (SQL Server, Oracle, etc.) and flat file/CSV/XML/JSON data sources. Strong understanding of ETL design patterns, data warehousing concepts. Experience with SQL Server Agent or other scheduling tools. Strong troubleshooting and problem-solving skills. Preferred Skills Familiarity with More ❯
Employment Type: Contract
Rate: £430 - £450/day
Posted:

PHP Developer

London, United Kingdom
Akkodis
with core business systems and delivering high-quality, scalable solutions. Key Responisibilites: Develop, maintain, and enhance PHP applications across web and enterprise environments Build and consume APIs (REST/JSON, SOAP) for integration's with third-party and internal systems Collaborate with cross-functional teams including product owners, business analysts, and testers Optimise application performance, scalability, and security Deliver clean More ❯
Employment Type: Contract
Rate: £400 - £450/day
Posted:

Java Developers - SC Clearance - 100% Remote

Nationwide, United Kingdom
Hybrid / WFH Options
Experis
Spring Boot and microservices Strong background in AWS (EC2, S3, Lambda, IAM) Knowledge of Kafka or similar messaging systems Advanced SQL skills with query optimisation Experience building REST/JSON APIs Proficiency with Docker for local and cloud deployments Excellent communication skills Nice-to-have skills for Java Developers Knowledge of JavaScript & ReactJS Familiarity with Amazon Aurora/RDS Experience More ❯
Employment Type: Contract
Rate: £600/day
Posted:

Mainframe Developer

London, United Kingdom
Stackstudio Digital Ltd
and DB2 Rest with extensive knowledge of CICS Web Services. Development experience using FileAid, Xpeditor, IBM Explorer for z/OS, and Visual Studio. Proficient with SOAP, WSDL, and JSON; comprehensive understanding of SOA and RESTful APIs. Experience with code repositories, bug tracking tools, and wikis (e.g., GitLab, Endevor, JIRA, Confluence). Knowledge of security integration patterns such as Basic More ❯
Employment Type: Contract
Rate: From £400 to £420 per day
Posted:

Java Developer - Active SC

London, United Kingdom
Hays
core AWS services (EC2, S3, Lambda, IAM, etc.) Kafka/Messaging Systems: Expertise in building event-driven architectures SQL: Strong experience with relational databases and query optimization REST/JSON APIs: Designing, developing, and consuming scalable APIs Docker: Proficiency in containerizing applications for local and cloud environments Communication: Excellent communication skills to convey complex ideas effectivel Nice to have: JavaScript More ❯
Employment Type: Contract
Rate: £600.0 - £640.0 per day + up to £640 pd (Inside IR35)
Posted:

Java Developer - Active SC

London, South East, England, United Kingdom
Hays Specialist Recruitment Limited
core AWS services (EC2, S3, Lambda, IAM, etc.) Kafka/Messaging Systems: Expertise in building event-driven architectures SQL: Strong experience with relational databases and query optimization REST/JSON APIs: Designing, developing, and consuming scalable APIs Docker: Proficiency in containerizing applications for local and cloud environments Communication: Excellent communication skills to convey complex ideas effectivel Nice to have: JavaScript More ❯
Employment Type: Contractor
Rate: £600 - £640 per day
Posted:

Scala Developer - Remote Work (Inside of IR35)

United Kingdom
Hybrid / WFH Options
Stealth IT Consulting
Developer in production environments. Strong understanding of functional programming and Scala frameworks (Play, Akka, or Cats). Experience developing microservices and distributed systems. Hands-on experience with RESTful APIs , JSON , and HTTP integration. Experience with CI/CD pipelines (eg, Jenkins, GitLab CI, or Azure DevOps). Familiarity with cloud platforms such as AWS or Azure . Experience with containerisation More ❯
Employment Type: Contract
Rate: GBP 450 Annual
Posted:

DevOps Engineer - DV Cleared

Worcestershire, United Kingdom
CBSbutler Holdings Limited trading as CBSbutler
AWS IAM, CIS Benchmarks Configuration Mgmt. Ansible, Puppet, Chef Build Tools Maven, Gradle, NPM, Webpack Testing Tools Selenium, JUnit, Postman, Cypress Other Nexus/Artifactory (artifact repositories), REST APIs, JSON/YAML, Linux system admin More ❯
Employment Type: Contract
Rate: £550 - £600/day
Posted:

D365 Customer Engagement (CE) Developer

London, United Kingdom
Adroit People Ltd
Pages/Portals. Strong expertise in Microsoft Dynamics 365 CRM, including configuration, customization, and integration capabilities. Strong expertise in integration technologies, frameworks and methods, such as Logic Apps, HTTP, json, AJAX, Oauth2. Proficiency in .NET, C#, JavaScript, and other relevant programming languages. Strong experience of developing plugins for Dynamics Strong experience in using JavaScript and HTML to enhance Dynamics form More ❯
Employment Type: Contract
Rate: Up to £450 per day
Posted:

Endur Technical Architect

London, United Kingdom
Harvey Nash
tools (Docker, OpenShift, Kubernetes); web UI development (React). Must understand Infrastructure as a Code (Terraform) Integration - Expert experience with integration techniques, including real-time messaging (AMQ), API design (JSON, Swagger), and batch techniques. Infrastructure and Operational - Familiarity with DevOps practices, including CI/CD, automated deployments via Ansible, GIT Repositories. cloud infrastructure offerings, Grid Computing elasticity, and cost optimization. More ❯
Employment Type: Contract
Posted:

Endur Technical Architect

London, South East, England, United Kingdom
Harvey Nash
tools (Docker, OpenShift, Kubernetes); web UI development (React). Must understand Infrastructure as a Code (Terraform) Integration - Expert experience with integration techniques, including real-time messaging (AMQ), API design (JSON, Swagger), and batch techniques. Infrastructure and Operational - Familiarity with DevOps practices, including CI/CD, automated deployments via Ansible, GIT Repositories. cloud infrastructure offerings, Grid Computing elasticity, and cost optimization. More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Axway API Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Randstad Digital
a solid foundation in: Axway's core products: Policy Studio, API Gateway, and API Manager. Key communication protocols: SFTP, HTTPS, SSL/TLS, and oAuth. Data and messaging formats: JSON, XML, SOAP, and REST. Linux scripting and environments. Using DevOps toolsets to automate testing and deployments. 6 months contract Inside IR35 - Remote Working - ?? £500 to £650 a day If you More ❯
Employment Type: Contract, Work From Home
Rate: £500 - £650 per day
Posted:

Axway API Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Randstad Technologies
a solid foundation in: Axway's core products: Policy Studio, API Gateway, and API Manager. Key communication protocols: SFTP, HTTPS, SSL/TLS, and oAuth. Data and messaging formats: JSON, XML, SOAP, and REST. Linux scripting and environments. Using DevOps toolsets to automate testing and deployments. 6 months contract Inside IR35 - Remote Working - £500 to £650 a day If you More ❯
Employment Type: Contractor
Rate: £500 - £650 per day
Posted:

Node JS Developer - must have CTC clearance - Inside IR35

London, United Kingdom
Exalto Consulting
to CI/CD (GitHub Actions) and containerisation best practices. . Operate securely inside private-network Azure environments (Managed Identity, RBAC, Private Endpoints). . Enforce config-driven processing (JSON configs) with robust error handling, telemetry, and full traceability Please forward your CV for immediate consideration. More ❯
Employment Type: Contract
Rate: GBP 615 Daily
Posted:

Solutions Architect

Andover, Hampshire, England, United Kingdom
Meritus Talent
resilient services on AWS or Azure. DevOps mindset, with practical knowledge of modern CI/CD pipelines and automated delivery practices. Strong integration background - experienced in microservices, REST APIs, JSON, and contemporary integration patterns. Security-first thinking, particularly around SSO, Identity and Access Management, SAML, OAuth, OpenID Connect, and Active Directory. Got your attention? If you believe that you have More ❯
Employment Type: Contractor
Rate: £600 - £800 per day
Posted:

WebMethods Developer x 2 - SC Cleared

Penwortham, Lancashire, United Kingdom
Hybrid / WFH Options
CBSbutler Holdings Limited trading as CBSbutler
for Deployment of WebMethods Patches, monitor capacity, providing service improvements Liaise with customers to define project requirements, document and design solutions Knowledge of: JMS Queues SAP Adaptors SFTP HTTPS JSON XML SOAP More ❯
Employment Type: Contract
Rate: GBP 650 - 700 Daily
Posted:

Power Apps Developer Contract - Inside IR35

Oxford, Oxfordshire, South East, United Kingdom
Halian Technology Limited
access) - Testing and Quality Assurance Tech RESTful API design and integration Power Automate (workflow automation) Power Apps (low-code app development) SQL (data querying and transformation API authentication methods JSON/XML (data formats for APIs) Basic JavaScriptor Pythonfor scripting Power BI (data visualization and dashboarding) SQL (data querying and transformation) For more info please apply with your CV More ❯
Employment Type: Contract
Rate: Up to £510 per day
Posted:

Node.js Developer

United Kingdom
Hybrid / WFH Options
Damia Group Ltd
WebSockets) Contribute to CI/CD (GitHub Actions) and containerisation best practices. Operate securely inside private-network Azure environments (Managed Identity, RBAC, Private Endpoints). Enforce config-driven processing (JSON configs) with robust error handling, telemetry, and full traceability Key skills and experience : Strong Node.js/TypeScript in production microservices (HTTP + background workers). Understanding of Azure Container Apps More ❯
Employment Type: Contract
Rate: £600 - £630 per day
Posted:

Technical Delivery Manager

London, South East, England, United Kingdom
Pontoon
solutions in medium to large enterprises. Experience leading delivery teams in a global or regional organization across multiple jurisdictions. Strong experience delivering complex data platform projects using C#, SQL, JSON, XML, APIs, and message bus technology. Solid knowledge of database systems, data modeling, and integration technologies. Exceptional problem-solving and communication skills, with experience in various data architectures. A collaborative More ❯
Employment Type: Contractor
Rate: £600 - £650 per day
Posted:

Integration Engineer Contact (Outside IR35) - Oxfordshire

Oxford, Oxfordshire, South East, United Kingdom
Halian Technology Limited
access) - Testing and Quality Assurance Tech RESTful API design and integration Power Automate (workflow automation) Power Apps (low-code app development) SQL (data querying and transformation API authentication methods JSON/XML (data formats for APIs) Basic JavaScriptor Pythonfor scripting Power BI (data visualization and dashboarding) SQL (data querying and transformation) For more info please apply with your CV More ❯
Employment Type: Contract
Rate: From £400 to £550 per day
Posted:
JSON
10th Percentile
£358
25th Percentile
£413
Median
£500
75th Percentile
£594
90th Percentile
£688