24 of 24 Contract JSON Jobs in England

Senior .Net Developer

Hiring Organisation
LANCESOFT LTD
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
C# and .NET (.NET Core/.NET) Excellent Object Oriented Programming (OOP) skills and design principles Proven experience designing and implementing APIs (REST/JSON) Solid understanding of application architecture, performance, and scalability Experience with SQL databases (e.g. SQL Server) Familiarity with unit testing, integration testing, and CI/ ...

Technical Architect

Hiring Organisation
Yolk Recruitment Limited
Location
Andover, Hampshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£700.00 - £800.00 per day
principles). Experience with DevOps, CI/CD pipelines and modern software delivery practices. Strong knowledge of microservices, APIs and web services (REST, SOAP, JSON). Experience with authentication and authorisation technologies such as SAML, OAuth, OpenID Connect, Active Directory, ADFS and LDAP. Strong understanding of Agile methodologies and working ...

Full Stack .NET Web Developer

Hiring Organisation
Association For Project Management
Location
Princes Risborough, Buckinghamshire, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£55,000
developer using C# and .NET/.NET Core to build web applications and services Experience integrating with third-party systems via APIs (REST/JSON), including CRM platform Salesforce and SFMC Skills Full-stack development skills with proficiency in C#, .NET/.NET Core and web development fundamentals (HTML ...

Platform Engineer AWS, Databricks and Unity Catalog

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £500 to £525 per day
including grants, external locations, storage credentials and governed data access. Terraform or similar Infrastructure as Code experience. Good understanding of Delta, Parquet, CSV and JSON data formats. Strong troubleshooting, documentation and stakeholder communication skills. Desirable Skills Palantir Foundry experience, especially Databricks connector, Data Connection, datasets, syncs, projects and permissions. Secure ...

Flow X Process Engineer

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £700/day Inside IR35
programming skills - Java, JavaScript, Python, Groovy - Experience in BPMN development - Good understanding of API testing - REST and SOAP or knowledge of integration protocols (REST - JSON, SOAP - XML) - Experience working with relational databases (Oracle DB, PostgreSQL) - Deep consulting/client-facing experience Disclaimer: This vacancy is being advertised by either Advanced ...

PostgreSQL DBA

Hiring Organisation
Experis
Location
Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£390 - £440/day
. Experience working within CI/CD pipelines and DevOps practices. Familiarity with GitLab or GitHub and pipeline setup. Nice to Have Experience with JSON/XML data formats. Exposure and some experience to Oracle databases. Familiarity with Kafka or event-driven architectures. Experience in Agile/DevOps-driven environments. ...

Systems Developer

Hiring Organisation
Clear IT Recruitment Limited
Location
Loughborough, Leicestershire, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Power Automate • Good background knowledge in setting up, configuring, and administering Azure environments, ensuring compliance, scalability, and operational excellence • Understanding of REST, SOAP and JSON integrations. • Knowledge of ITIL testing, change and release management. • Strong communication, problem solving and organisational skills. What We Offer • A varied technical role within ...

Terraform Infrastructure Engineer / IaC SME

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £700 per day
providers (Nutanix, VMware, storage, ...) Good knowledge of Ansible, Tower, python, PowerShell, bash, C##, .NET, Rest/Open API, Power BI, YAML, JSON Soft Skills: Ability to build relationships with customers and influence and negotiate to achieve defined goals Ability to distinguish between quick wins and long-term goals Active ...

Senior Full Stack Engineer

Hiring Organisation
Access Computer Consulting
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £440/day
Docker. Experience in building responsive, component based user interfaces using modern front end frameworks. Hands on expertise in API design and development (REST/JSON), including versioning and backward compatibility. Experience with UI testing, component testing, and front end build tooling. Experience in CI/CD pipelines, GitOps workflows ...

SOC Engineer - 6 Month FTC

Hiring Organisation
Precise Placements
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£65,000 - £80,000 per annum
Technical Expertise Hands-on experience with leading SIEM platforms (e.g., Exabeam, LogRhythm, ArcSight, Microsoft Sentinel, Splunk, QRadar, Elastic). Strong understanding of log formats (JSON, syslog, XML, CEF, etc.) and ingestion technologies (Syslog, API, Event Hubs, Kafka, Agents). Practical knowledge of detection engineering, threat modelling, and attacker behaviour analysis. ...

Observability Engineer/SRE Engineer

Hiring Organisation
IF Recruitment Ltd
Location
Surrey, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
automate monitoring setups. Key Skills: Solid experience with APM, monitoring, observability and event management tools including Datadog, Dynatrace/AppDynamics, Grafana. Experience with JSON and Scripting languages such as Python, Bash, PowerShell or JavaScript for automation of tasks. Exposure to CI/CD pipelines and IaC (Infrastructure as Code). ...

Business Systems Analyst

Hiring Organisation
Tenth Revolution Group
Location
Chippenham, Wiltshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £400 per day
technical acumen, including system architecture, databases, APIs, and system integrations Advanced SQL skills for data extraction, validation, and analysis Familiarity with EDI, XML/JSON, and integration middleware tools Strong experience in business process modelling and improvement (e.g. Lean, Six Sigma) Proven ability to produce SRS, BRDs, API documentation, user ...

Technical Business Analyst

Hiring Organisation
Tenth Revolution Group
Location
Chippenham, Wiltshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £400 per day
manufacturing, logistics, or similarly operational environments Experience working across full delivery lifecycles (SDLC), from discovery through to implementation Familiarity with APIs, data formats (e.g. JSON/XML), and integration concepts Experience with business process improvement methodologies (e.g. Lean or similar) Comfortable producing documentation such as BRDs, functional specs, and process ...

Microsoft AI CoPilot Developer

Hiring Organisation
FDM Group
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Microsoft Copilot Studio, Power Platform, or other conversational AI frameworks. Strong understanding of LLMs, prompts, grounding, and RAG workflows. Proficiency with Power Automate, APIs, JSON, Microsoft Graph, and workflow automation. Experience working with Microsoft 365 services (SharePoint, Outlook, Teams, OneDrive). Ability to translate business requirements into technical solutions. Familiarity ...

Automation Software Engineer - Power Automate - £650/day 6mths

Hiring Organisation
Adecco
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
What you'll be doing Building and orchestrating automations using Power Automate (core skill) Working with stand-alone APIs and small structured datasets (CSV, JSON, spreadsheets) Automating ITSM processes, checklists, and onboarding (JML) Consolidating data into Azure DevOps dashboards Supporting ServiceNow CI/CD integrations (read-only) Delivering PoCs Creating ...

S/4HANA Coupa Integration Architect

Hiring Organisation
Searchability NS&D
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £577 per day
flow across procurement and finance systems. Design and deliver integration architecture across Coupa and SAP S/4HANA Build and manage APIs (REST/JSON, OData), IDocs, and BAPIs Oversee master data and transactional integration (P2P, AP) Collaborate with business and technical stakeholders across multiple teams Support full lifecycle delivery ...

OPERA PMS/OHIP Integration & Data SME - London

Hiring Organisation
Strike IT Services
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Reservations Front Desk Cashiering Profiles Rate Management Night Audit Proven experience working with Oracle Hospitality Integration Platform (OHIP) Strong understanding of: REST APIs JSON payloads API integrations Streaming/Webhook architectures Hands-on experience using Postman or similar API testing tools Strong data analysis and mapping capability Ability to investigate ...

OPERA PMS/OHIP Consultant

Hiring Organisation
Norton Blake
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 - 600 Daily
experience (v5.x & OPERA Cloud) Strong understanding of Reservations, Front Desk, Cashiering, Profiles, Rate Management & Night Audit Proven OHIP API experience Strong knowledge of JSON, REST APIs & Postman Excellent data mapping and analytical skills Ability to translate operational hotel processes into technical data logic ...

Integration Engineer

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500.0 - £595.0 per day + up to £595pd (Outside IR35)
Proven experience working with InterSystems HealthShare. Strong hands-on experience mapping source systems to SDA3. Experience building integrations using HL7 v2, FHIR, XML/JSON, and APIs. Hands-on experience with ObjectScript or HealthShare configuration. Experience implementing routing, transformation, validation, and error handling. Strong understanding of core healthcare data (demographics ...

Data Integration Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Bath, Avon, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 per day
HealthShare as a central orchestration platformMapping, transforming, and validating healthcare data into SDA3, including bespoke extensions where requiredImplementing interfaces using HL7 v2, FHIR, XML, JSON, and APIsDeveloping routing, transformation, deduplication, and conflict-resolution logicSupporting near real-time and bi-directional data exchange across complex system landscapesEnsuring data quality, auditability ...

Integration Specialist – Workforce Management

Hiring Organisation
Intec Select Ltd
Location
London, Billingsgate, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £750/day
Understanding of payroll, HRIS, time and attendance, and scheduling data Strong skills in integration tooling (e.g., CPI/MuleSoft/Boomi) and data formats (JSON/XML/CSV). Experience with authentication/authorisation, logging, and operational support Ideally also an understanding of: Payroll processing cycles and time valuation ...

Senior Python Engineer

Hiring Organisation
Addition
Location
Farnborough, Hampshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£800 per day
/CD pipelines to support automated deployment and delivery Collaborating with cross-functional technical teams to deliver secure, production-ready solutions Working with PostgreSQL, JSON-based data structures, and cloud-native tooling Supporting optimisation and solver-based problem-solving where required Main Skills Needed: Strong commercial Python engineering experience within … containerisation, and deployment practices Experience building and maintaining CI/CD pipelines Knowledge of graph databases and complex data architectures Strong experience with PostgreSQL, JSON, and API-driven systems Exposure to optimisation problems and solver technologies would be highly beneficial What’s in It for You: Opportunity to work ...

Platform Engineer AWS, Databricks

Hiring Organisation
Stackstudio Digital Ltd
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
From £500 to £525 per day
Job Title: Platform Engineer AWS, Databricks, Unity Catalog and Palantir Foundry Job Type: Contract Inside IR35 Location: Leeds - Hybrid Duration: 6 Months Job Description Platform Engineer AWS, Databricks, Unity Catalog and Palantir Foundry SC Eligible ...

Azure Integration Developer

Hiring Organisation
Context Recruitment Limited
Location
Oxford, Oxfordshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
service supporting an onboard train seat reservation system. This role will focus on building a lightweight, serverless HTTPS API using Microsoft Azure, handling structured JSON data, secure configuration, and monitoring. The work will be delivered under internal technical guidance, with testing and operational coordination supported by the wider team. … resolution, documentation, and handover Essential skills and experience: Strong hands-on experience with Azure Functions and serverless APIs Solid understanding of REST, HTTPS, and JSON Experience building Azure-based integration services Experience with Azure Storage, secure configuration, and Application Insights Ability to work from interface documentation and produce clear technical ...