26 to 50 of 50 Contract JSON Jobs

Data Engineer

Hiring Organisation
DCV Technologies Limited
Location
London, United Kingdom
Employment Type
Contract, Work From Home
scalability. Key Responsibilities Design and configure IBM DataPower services (MPGW, XML Firewall, WS-Proxy) Expose CICS, IMS, DB2 and MQ services via REST/JSON and SOAP APIs Implement API security including OAuth2, JWT, TLS/mTLS and AAA policies Deliver XSLT and GatewayScript transformations and schema validation Integrate with ...

Mainframe Modernization - IBM DataPower Engineer

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£575 - £625/day - Inside IR35
implementing secure, high-performance integration solutions using IBM DataPower Gateway to expose mainframe services (CICS, IMS, DB2, MQ) as modern APIs (REST/JSON, SOAP). Enable legacy-to-digital transformation by bridging z/OS applications with API platforms and cloud. Your responsibilities: Develop and configure DataPower services (MPGW ...

OSS Systems Engineer

Hiring Organisation
SmartSourcing plc
Location
Nationwide, United Kingdom
Employment Type
Contract
equivalents). Programming/Scripting: Proficiency in Python, Bash, or JavaScript Network Protocols: Deep understanding of SNMP (v2/v3), MIBs, OIDs, NetFlow, and JSON/REST APIs. Linux Systems: Advanced Linux administration skills (the MoM usually runs on a hardened Linux stack). Preferred Experience & Skills Experience ...

OSS Systems Engineer | UK

Hiring Organisation
SmartSourcing Ltd
Location
United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
equivalents). Programming/Scripting: Proficiency in Python, Bash, or JavaScript Network Protocols: Deep understanding of SNMP (v2/v3), MIBs, OIDs, NetFlow, and JSON/REST APIs. Linux Systems: Advanced Linux administration skills (the MoM usually runs on a hardened Linux stack). Preferred Experience Skills Experience ...

Python Software Engineer

Hiring Organisation
Yoh, A Day & Zimmermann Company
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£40.00 - £50.00 per hour
technology. Initial 3-month contract. Key Requirements (selective) Strong Python development skills (multithreaded, production code) Linux development experience Familiarity with REST/HTTP/JSON tooling and containers (e.g., Docker) Experience in test frameworks, automation, or media/codec workflows beneficial Contract Details Duration: 3 months (extensions possible) Location: London ...

Product Owner - API

Hiring Organisation
Morson Edge
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£500 - 550 per day
Technical aptitude with understanding of web and mobile technologies (React, Swift, Kotlin, Flutter). Ability to interpret and work with data models and payloads (JSON, XML) – coding not required, but comprehension essential. Experience working with offshore development teams. Strong grasp of data flow from source to user, ensuring APIs deliver ...

Full Stack Developer

Hiring Organisation
Stott & May Professional Search Limited
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £743 per day
Job Title: Full-Stack Developer Location: Wokingham, UK (Office based, 5 days per week in-office) Day Rate: £743/day (Inside IR35) Contract Duration: 6 months About the Role We are looking for a ...

Backend Software Engineer (MOD/Defence Project)

Hiring Organisation
The Talent Locker
Location
Farnborough, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 - 600 Daily
skills required Backed development experience (Mid-senior level) Python Data Pipeline Creation and Management API Creation and Integration Database Creation and Integration Working with JSON If you have worked in a security cleared environment, have the active relevant Security Clearance and skilled with Back End development - please apply. ...

Devops Engineer

Hiring Organisation
Vallum Associates
Location
S11, Ecclesall, Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
developme Essential Skills: - 7+ years engineering; 3+ in CI/CD platform or DevSecOps. Strong Jenkins + Groovy shared library expertise. Advanced Python automation (JSON/YAML processing, tooling scripts). Deep Maven/NPM/Python packaging knowledge; exposure to Helm/Terraform and container image metadata. Supply-chain ...

Data Engineer Lead (Openshift)

Hiring Organisation
Infoplus Technologies UK Ltd
Location
Sheffield, South Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £480 per day
alerting. Strong data engineering skills in Python (or similar) for ETL/ELT, enrichment, and validation. Knowledge of event schemas (Avro/Protobuf/JSON), contracts, and backward/forward compatibility. Familiarity with observability standards and practices; ability to drive toward Level 4 maturity (proactive monitoring, automated insights). Understanding ...

DevOps Engineer

Hiring Organisation
CBSbutler Holdings Limited
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Contract
3+ years in CI/CD platform or DevSecOps roles . Expert knowledge of Jenkins and Groovy Shared Libraries . Strong Python automation skills (JSON/YAML processing, tooling scripts). Deep understanding of Maven, NPM, and Python packaging . Exposure to Helm, Terraform, and container image metadata . Solid ...

DevX Build Pipeline Engineer

Hiring Organisation
CBSbutler Holdings Limited
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Contract
3+ years in CI/CD platform or DevSecOps roles . Expert knowledge of Jenkins and Groovy Shared Libraries . Strong Python automation skills (JSON/YAML processing, tooling scripts). Deep understanding of Maven, NPM, and Python packaging . Exposure to Helm, Terraform, and container image metadata . Solid ...

OpenShift Telemetry Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £450 to £500 per day
alerting. Strong data engineering skills in Python (or similar) for ETL/ELT, enrichment, and validation. Knowledge of event schemas (Avro/Protobuf/JSON), contracts, and backward/forward compatibility. Familiarity with observability standards and practices; ability to drive toward Level 4 maturity (proactive monitoring, automated insights). Understanding ...

Cyber Security Engineer

Hiring Organisation
ECS
Location
London, United Kingdom
Employment Type
Contract
data protection, information governance and insider risk management using Microsoft Purview, DLP, sensitivity labels and DSPM concepts. Scripting and automation skills (e.g. PowerShell, KQL, JSON, infrastructure-as-code approaches) to support repeatable, scalable security configurations. Experience delivering security improvements within structured work packages or project-based environments, using ITIL-aligned ...

Technical Architect Opportunities (perm/contract)

Hiring Organisation
COMXPS LTD
Location
Andover, Hampshire, South East, United Kingdom
Employment Type
Contract
Location: details below: Contract - 2 days a week in the office in Andover. Perm - 1 day a week in the office in Andover. Security Clearance:SC clearance, or ability to successfully undertake clearance Opportunities Available ...

Lead AI Engineer

Hiring Organisation
Response Informatics
Location
Warwick, Warwickshire, West Midlands, United Kingdom
Employment Type
Contract
with compliance (PII handling, RBAC/IAM,key management). Nice-to-Have Experience with function/tool calling, agent frameworks, and structured output (JSON/JSON Schema). Knowledge of embedding models, rerankers, hybrid search (BM25 + vector), and evaluation frameworks. Exposure to cost/latency trade-offs across ...

Technical Architect

Hiring Organisation
RCRTR
Location
Swansea, City and County of Swansea, West Glamorgan, United Kingdom
Employment Type
Contract
Contract Rate
£470 - £500/day
event-driven, synchronous/asynchronous). Lead the design of distributed microservices, ensuring scalability, resilience, observability, and maintainability. Apply schema-driven design principles (e.g., JSON Schema, OpenAPI, AsyncAPI) to ensure consistent and reusable domain models. Cloud & Platform Engineering (AWS) Select and integrate AWS services (EC2, Lambda, API Gateway, S3, DynamoDB … architectures. Deep experience with APIs (REST, event-driven, messaging), microservices, and distributed system design. Strong understanding of schema-driven design , using tools such as JSON Schema, OpenAPI, or AsyncAPI. Solid understanding of cloud security, identity and access management, and operational best practices. Experience working with Infrastructure-as-Code (Terraform, CloudFormation ...

Oracle Developer

Hiring Organisation
Invitise Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £650 per day
builds and enhancements to current workstreams. Essential experience: Strong development background Oracle Integration Cloud Oracle Fusion Cloud Integration work with SOAP, REST, JSON OIC, Postman, Curl Oracle VBCS ERP and HCM integrations via OIC OAUTH, IAM, JWT GIT, XML, JSON, XSLT Desirable: Public cloud and security knowledge DevOps background Experience … processes Understanding of secure development practices Interested? Please apply below. Oracle Integration Cloud, OIC, Oracle Fusion, Oracle ERP, HCM, VBCS, OCI, Integrations, REST, SOAP, JSON, SC Cleared, Inside IR35. ...

Scala Developer - Remote Contract - Immediate Start

Hiring Organisation
Stealth IT Consulting Limited
Location
United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£380 per day £380 per day (Inside IR35)
functional programming concepts and idiomatic Scala (immutability, monads; familiarity with Cats or Scalaz is a plus). Experience designing and consuming REST APIs , including JSON validation/serialization (Play JSON, Circe). Proficiency with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query optimization. Proven experience ...

Oracle Cloud Integrations Specialist

Hiring Organisation
GTC Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650/day
experience . 2+ years’ Oracle Fusion Cloud experience . Hands-on development and unit testing of integration components & web services (SOAP/REST/JSON), using OIC, Postman and Curl. Experience developing custom elements using Oracle VBCS . 3+ years’ experience working with system interfaces, particularly PaaS cloud integrations. Strong … communication and teamwork skills. Experience integrating Oracle ERP and HCM via OIC. Knowledge of OAUTH, IAM, JWT technologies. Experience with GIT, XML, JSON, XSLT, SOAPUI, Postman, Curl . Strong understanding of systems integration best practices and architectural patterns. Excellent written and verbal communication skills. Desirable Skills Knowledge of public cloud ...

Contract) Boomi Integration Engineer

Hiring Organisation
Lynko
Location
Manchester, United Kingdom
Employment Type
Contract
error handling → deployment → monitoring. Develop and publish APIs (REST/SOAP) with appropriate security (OAuth2, basic auth, certificates, IP restrictions). Implement data transformations (JSON/XML/CSV), mapping, validation, enrichment, and canonical models. Set up and manage Boomi runtime/Atoms (Atom, Molecule, Atom Cloud) and environments. Configure … integration patterns: synchronous vs async, pub/sub, idempotency, batching, pagination. API fundamentals: REST, SOAP, OpenAPI basics, webhooks, status codes, versioning. Data formats & transformation: JSON, XML, CSV; mapping and validation; basic XSLT helpful. Operational discipline: logging, monitoring, alerting, incident response. Environment & release practices: dev/test/prod separation, change ...

Oracle Cloud Integrations Specialist

Hiring Organisation
GTC RECRUITMENT LIMITED
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 per day
Maintainandbuildontopreviouslydeliveredintegrationworkstreams. TakeassignedSOWs/tasksandworkindependentlytodeliverhigh-qualityoutputs. Develop,validate,andreviewphysicalintegrationdesignsandproducerelatedtechnicaldocumentation. DeployVBCSapplicationsintodevandtestenvironmentsusingSECDEVOPSpractices. Workcollaborativelywithinamultidisciplinarytechnicalteam. MandatorySkills&Experience 3+yearsdevelopmentexperience. 2+yearsOracleIntegrationCloud(OIC)experience. 2+yearsOracleFusionCloudexperience. Hands-ondevelopmentandunittestingofintegrationcomponents&webservices(SOAP/REST/JSON),usingOIC,PostmanandCurl. ExperiencedevelopingcustomelementsusingOracleVBCS. 3+yearsexperienceworkingwithsysteminterfaces,particularlyPaaScloudintegrations. Strongcommunicationandteamworkskills. ExperienceintegratingOracleERPandHCMviaOIC. KnowledgeofOAUTH,IAM,JWTtechnologies. ExperiencewithGIT,XML,JSON,XSLT,SOAPUI,Postman,Curl. Strongunderstandingofsystemsintegrationbestpracticesandarchitecturalpatterns. Excellentwrittenandverbalcommunicationskills. DesirableSkills Knowledgeofpubliccloud(IaaS)technologiesincludingsecurityandIAMcontrols. Experienceinsecurityadministrationandauditingofprivilegedsystemsaccess. Abilitytoprovidetechnicaldeliveryprogressupdates ...

Boomi Integration Developer

Hiring Organisation
Noir
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £620 per day
Boomi Integration Developer - 6 Months Contract - £620/Day (Inside IR35) - Remote Working (Tech stack: Boomi Integration Developer, ERP, WMS, API, REST, SOAP, JSON, XML, CSV, Programmer, Full Stack Engineer, Architect, Boomi Integration Developer) After 15 years' experience in the fashion industry, our client has a mission to change … achieve this, our client is looking for contract Boomi Integration Developer with experience in some or the following: ERP, WMS, API, REST, SOAP, JSON, XML and CSV. The initial contract will be written for 6 months and extended thereafter. Location: Remote Working Rate: £620/Day - Inside IR35 Applicants must ...

.NET Developer

Hiring Organisation
Meritus Talent
Location
Birmingham, West Midlands, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £600 per day
active SC & NPPV3 clearances. Main Responsibilities: Design, develop, and maintain applications using C# and the .NET framework (.NET 6+) Build and consume XML and JSON-based APIs to support system integration Work closely with stakeholders to support requirements gathering and technical analysis Write and maintain unit tests using MSTest … .NET 6 or above) Hands-on experience with ASP.NET for building web or service-based applications Experience developing and consuming RESTful APIs (XML/JSON) Experience contributing to requirements analysis and technical discussions Got your attention? If you believe that you have the skills and experience for the .NET Developer ...

Automation Test Engineer

Hiring Organisation
Profile 29
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £500 per day
frameworks autonomously Experience with common automation tools/frameworks (e.g. Playwright, Cypress, Selenium, REST-assured, etc.) Solid understanding of REST APIs, HTTP methods, and JSON Experience working with CI/CD pipelines Profile 29 recruitment keywords: Software Tester testing test QA quality assurance Automation Test Engineer React front-end Spring … Boot APIs API automation frameworks Playwright Cypress Selenium REST-assured REST APIs HTTP JSON CI/CD London remote hybrid contract freelance AI artificial intelligence ...