Contract JSON Job Vacancies

1 to 25 of 50 Contract JSON Jobs

Snaplogic Developer

United Kingdom
Hollborn Recruitment Ltd
experience as a SnapLogic Developer/Engineer. Strong expertise in SnapLogic pipeline design, integration patterns, and deployment. Solid understanding of APIs, web services (REST/SOAP), and data formats (JSON, XML, CSV, Flat Files). Hands-on experience in error handling, debugging, and performance tuning of integrations. Familiarity with relational databases (SQL/NoSQL) and cloud platforms (AWS, Azure, GCP More ❯
Employment Type: Contract
Rate: £350 per day as per market standards
Posted:

GenAI Developer MERN / MEAN Fullstack

Dublin, County Dublin, Ireland
Robert Walters
equivalent frameworks. Proficiency in Node.js (Nest.js); Python is a bonus. Strong understanding of DOM, HTML5, CSS3, JavaScript, and responsive web design patterns. Experience with data integration and working with JSON and RESTful APIs. Strong debugging and troubleshooting skills. Knowledge of automated testing strategies and best practices. Familiarity with management/tracking tools such as JIRA/Confluence. Experience working in More ❯
Employment Type: Contractor
Rate: £550 - £700 per day
Posted:

Platform Engineer/SRE

Bromley, Greater London, Bromley Town, United Kingdom
Hybrid / WFH Options
Ascendion
continuous deployment environment, preferably within a financial domain. Strong experience in Java/J2EE, Spring Boot, Mule, web Services, Kafka, SQL & PL/SQL (Oracle) Strong knowledge of XML, JSON and its usage within API and Microservice implementations at scale. Experience in OpenShift, Kubernetes or any one the container platform. Experience with WebLogic or JBoss or Mule or tomcat application More ❯
Employment Type: Permanent, Contract
Posted:

Platform Engineering Lead

Bromley, Greater London, Bromley Town, United Kingdom
Ascendion
continuous deployment environment, preferably within a financial domain. Strong experience in Java/J2EE, Spring Boot, Mule, web Services, Kafka, SQL & PL/SQL (Oracle) Strong knowledge of XML, JSON and its usage within API and Microservice implementations at scale. Significant expertise in cloud-native deployment using OpenShift, Kubernetes or any one the container platform. Experience maintaining on-premises environments More ❯
Employment Type: Permanent, Contract
Posted:

Quality Engineer -

Telford, Shropshire, England, United Kingdom
TXP
helping to ensure solutions meet the highest quality standards across a range of technologies. Tech Stack Frontend: Remix, React, JavaScript Backend: Java, Spring, .NET Data: MongoDB, Oracle Tools: RabbitMQ, JSON Key Responsibilities Design and implement test automation frameworks and solutions from the ground up Apply TDD/BDD methodologies and risk-based testing approaches Support CI/CD pipelines and More ❯
Employment Type: Contractor
Rate: £0 per annum
Posted:

Integration Engineer

Nationwide, United Kingdom
Hybrid / WFH Options
Charles Simon Associates Ltd
Mirth Connect, Rhapsody, Cloverleaf, or InterSystems Ensemble. Proficiency in Java, JavaScript, Python, or C#/.NET for scripting and interface development. Experience designing and consuming REST/SOAP APIs (JSON, XML). Solid understanding of healthcare workflows and clinical systems (Epic, Cerner, Meditech, EMIS, SystemOne, or equivalent). Strong SQL/database skills for data transformation and troubleshooting. Familiarity with More ❯
Employment Type: Contract
Rate: £450 - £550/day
Posted:

Integration Engineer

M2, Manchester, United Kingdom
Hybrid / WFH Options
Charles Simon Associates Ltd
Mirth Connect, Rhapsody, Cloverleaf, or InterSystems Ensemble. Proficiency in Java, JavaScript, Python, or C#/.NET for scripting and interface development. Experience designing and consuming REST/SOAP APIs (JSON, XML). Solid understanding of healthcare workflows and clinical systems (Epic, Cerner, Meditech, EMIS, SystemOne, or equivalent). Strong SQL/database skills for data transformation and troubleshooting. Familiarity with More ❯
Employment Type: Contract
Rate: £450 - £550/day
Posted:

Integration Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Charles Simon Associates Ltd
Mirth Connect, Rhapsody, Cloverleaf, or InterSystems Ensemble. Proficiency in Java, JavaScript, Python, or C#/.NET for scripting and interface development. Experience designing and consuming REST/SOAP APIs (JSON, XML). Solid understanding of healthcare workflows and clinical systems (Epic, Cerner, Meditech, EMIS, SystemOne, or equivalent). Strong SQL/database skills for data transformation and troubleshooting. Familiarity with More ❯
Employment Type: Contractor
Rate: £450 - £550 per day
Posted:

Integration Engineer

EC1A, Farringdon, Greater London, United Kingdom
Hybrid / WFH Options
Charles Simon Associates Ltd
Mirth Connect, Rhapsody, Cloverleaf, or InterSystems Ensemble. Proficiency in Java, JavaScript, Python, or C#/.NET for scripting and interface development. Experience designing and consuming REST/SOAP APIs (JSON, XML). Solid understanding of healthcare workflows and clinical systems (Epic, Cerner, Meditech, EMIS, SystemOne, or equivalent). Strong SQL/database skills for data transformation and troubleshooting. Familiarity with More ❯
Employment Type: Contract
Rate: £450 - £550/day
Posted:

Integration Engineer

B1, Birmingham, West Midlands (County), United Kingdom
Hybrid / WFH Options
Charles Simon Associates Ltd
Mirth Connect, Rhapsody, Cloverleaf, or InterSystems Ensemble. Proficiency in Java, JavaScript, Python, or C#/.NET for scripting and interface development. Experience designing and consuming REST/SOAP APIs (JSON, XML). Solid understanding of healthcare workflows and clinical systems (Epic, Cerner, Meditech, EMIS, SystemOne, or equivalent). Strong SQL/database skills for data transformation and troubleshooting. Familiarity with More ❯
Employment Type: Contract
Rate: £450 - £550/day
Posted:

C++ Developer

Hounslow, London, United Kingdom
Hybrid / WFH Options
iDPP
experience. Proficient in C++11 or later with strong knowledge of memory management, concurrency, and object-oriented programming. Solid experience with AngularJS, HTML, CSS, and JavaScript. Familiarity with REST APIs, JSON, and web service integration. Experience in maintenance/support roles involving bug fixing and system enhancement. Strong debugging and full-stack problem-solving skills. Proficient in using Git and working More ❯
Employment Type: Contract
Rate: £430 per day INSIDE IR35
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:

Power Platform Developer

London, South East, England, United Kingdom
Lynx Recruitment Ltd
Skills & Experience Required: Proven experience with Microsoft Power Platform and UiPath Strong understanding of HTTP, HTML/CSS/JavaScript Experience with structured data formats such as XML and JSON Knowledge of SQL Server, PostgreSQL, and Dataverse Familiarity with enterprise tools and practices: authentication/authorisation, cloud hosting (Azure), source control, package management, and monitoring tools Awareness of security considerations More ❯
Employment Type: Contractor
Rate: £400 - £435 per day
Posted:

Oracle Developer

Nationwide, United Kingdom
Queen Square Recruitment Ltd
Platform and related services. Proficiency in web technologies (HTML, CSS, JavaScript, frameworks). Experience integrating with Oracle Cloud applications (ERP, HCM, Payroll, Procurement, SCM). Knowledge of REST APIs, JSON, and related integration technologies. Personal Attributes Strong analytical and problem-solving abilities. Excellent communication and interpersonal skills. Ability to collaborate effectively across cross-functional teams. Highly organized with strong task More ❯
Employment Type: Contract
Rate: £450 - £550/day
Posted:

C# Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
SR2
Integration Certification Strong experience with Workday Studio, EIBs, and Core Connectors Proven background in C# development in integration-heavy environments Hands-on experience with REST/SOAP APIs , XML, JSON, and XSLT Strong communication skills and ability to work in a global, distributed environment Self-sufficient, proactive, and comfortable working in delivery-focused teams Nice to Have: Experience with enterprise More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Senior Integration Developer

London, United Kingdom
Hybrid / WFH Options
Hays
Hands-on experience as a Senior Integration Developer, with D365 Finance integrations. Active Security Clearance (SC) Deep knowledge of REST APIs, OData, DMF packages, and data mapping (XSLT, XML, JSON, CSV). Proficiency in tools like Postman, Azure Logic Apps, PowerShell, and C#. Experience with ETL processes, error handling, idempotency, and throttling. Strong understanding of secure data handling, encryption, and More ❯
Employment Type: Contract
Rate: £500.0 - £515.0 per day + up to £515 pd (InsideIR35)
Posted:

Senior Integration Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Hays Specialist Recruitment Limited
end client. Key Requirements: Hands-on experience as a Senior Integration Developer, with D365 Finance integrations. Deep knowledge of REST APIs, OData, DMF packages, and data mapping (XSLT, XML, JSON, CSV). Proficiency in tools like Postman, Azure Logic Apps, PowerShell, and C#. Experience with ETL processes, error handling, idempotency, and throttling. Strong understanding of secure data handling, encryption, and More ❯
Employment Type: Contractor
Rate: £500 - £515 per day
Posted:

Workday Integration Consultant

Reading, Berkshire, South East, United Kingdom
Hollborn Recruitment Ltd
Core Connectors, EIBs, Studio, and custom solutions. Leverage Workday HCM core knowledge to deliver effective integration solutions. Perform XML/XSLT transformations and handle various file formats (CSV, XML, JSON, etc.). Work with APIs, Web Services (SOAP/REST), and file transfer protocols (SFTP/FTP). Ensure accuracy, compliance, and performance of integrations across HR, Payroll, Benefits, and More ❯
Employment Type: Contract
Rate: £350 per day
Posted:

IOS Developer (Swift)-London- Up to £350 p/d- OUTSIDE IR35

City, London, United Kingdom
Consol Partners
Skills: Strong experience with Swift, SwiftUI, and Combine Proven track record in iOS app development and deployment Deep understanding of iOS architecture and design patterns Experience with RESTful APIs, JSON, and Git-based version control Familiarity with CI/CD pipelines and GitLab workflows Strong grasp of iOS security protocols and regulatory compliance Excellent problem-solving, debugging, and communication skills More ❯
Employment Type: Contract
Rate: GBP 300 - 350 Daily
Posted:

WebMethods Developer

London, United Kingdom
Hybrid / WFH Options
Randstad Digital
and design solutions that deliver real value. Must Have skills Hands-on experience with WebMethods 9 and 10 integration delivery. Strong knowledge of JMS Queues, SAP Adaptors, SFTP, HTTPS, JSON, XML, and SOAP. Experience in WebMethods administration, including patch management and capacity monitoring. Understanding of automated testing and CI/CD pipelines. Excellent communication skills and the ability to work More ❯
Employment Type: Contract, Work From Home
Rate: £600 - £650 per day
Posted:

Senior Cloud Data Engineer

London, United Kingdom
Pontoon
Familiarity with DevOps tools such as GitHub Actions or Jenkins. Solid grounding in modern engineering principles and full-stack development. Bonus Skills: Airflow, Kafka/Kafka Connect, Delta Lake, JSON/XML/Parquet/YAML, cloud-based data services. Why Apply? Work for a global payments innovator shaping the future of commerce. Join a highly skilled, collaborative, and forward More ❯
Employment Type: Contract
Rate: £95 - £115/hour
Posted:

Senior Cloud Data Engineer

London, South East, England, United Kingdom
Pontoon
Familiarity with DevOps tools such as GitHub Actions or Jenkins. Solid grounding in modern engineering principles and full-stack development. Bonus Skills: Airflow, Kafka/Kafka Connect, Delta Lake, JSON/XML/Parquet/YAML, cloud-based data services. Why Apply? Work for a global payments innovator shaping the future of commerce. Join a highly skilled, collaborative, and forward More ❯
Employment Type: Contractor
Rate: £95.00 - £115.00 per hour
Posted:

Axway API Developer - SC Cleared

Penwortham, Lancashire, United Kingdom
CBSbutler Holdings Limited trading as CBSbutler
for Deployment of Axway Patches, monitor capacity, providing service improvements Liaise with customers to define project requirements, document and design solutions Knowledge of: SFTP HTTPS SSL/TLS oAuth JSON XML SOAP REST Mime Linux Scripting More ❯
Employment Type: Contract
Rate: GBP 650 - 690 Daily
Posted:

Axway API Developer - SC Cleared

Preston, Lancashire, United Kingdom
CBSbutler Holdings Limited trading as CBSbutler
for Deployment of Axway Patches, monitor capacity, providing service improvements Liaise with customers to define project requirements, document and design solutions Knowledge of: SFTP HTTPS SSL/TLS oAuth JSON XML SOAP REST Mime Linux Scripting More ❯
Employment Type: Contract
Rate: £650 - £690/day
Posted:

API Developer - SC Cleared

London, United Kingdom
Hybrid / WFH Options
CBSbutler Holdings Limited trading as CBSbutler
for Deployment of Axway Patches, monitor capacity, providing service improvements Liaise with customers to define project requirements, document and design solutions Knowledge of: SFTP HTTPS SSL/TLS oAuth JSON XML SOAP REST Mime * Linux Scripting More ❯
Employment Type: Contract
Rate: £650 - £690/day
Posted:
JSON
10th Percentile
£350
25th Percentile
£410
Median
£492
75th Percentile
£588
90th Percentile
£680