JSON Jobs in London

1 to 25 of 77 JSON Jobs in London

API & UI Test Automation Engineer (Maternity Cover) United Kingdom Remote (any location) £45k / year

Hounslow, London, United Kingdom
Hybrid / WFH Options
Abel & Cole
tools such as Swagger, Postman, RestSharp, or similar. Understanding of HTTP methods, status codes, request/response formats, and API authentication (e.g. Bearer tokens, OAuth2). Experience working with JSON and XML formats. Understanding of agile delivery methodologies, preferably Scrum. Excellent written and verbal communication skills, able to collaborate across both technical and non-technical teams. Familiarity with CI/ More ❯
Employment Type: Permanent
Salary: GBP 45,000 Annual
Posted:

Graduate Technical Analyst (Insurance) - Must have good Python , SQL and Excel

London, South East, England, United Kingdom
The Workplace Consultancy
Player: Ability to work collaboratively in a team environment, as well as independently when required. • API: Experience with API integrations and tooling such as Postman would be a plus. • JSON: Familiarity with JSON, JSON schema and JSONpath expressions would be a plus. • Databases: Familiarity with PostgreSQL or similar database management systems would be a plus. More ❯
Employment Type: Full-Time
Salary: Salary negotiable
Posted:

Senior Microsoft Dynamics 365 CRM Developer

London, United Kingdom
Hybrid / WFH Options
Cognizant
custom report experience through SQL Server Reporting Services (SSRS) and FetchXML .NET Framework Version 4.5 or above including strong WCF\ Web API experience Knowledge of Web development, HTML, CSS, JSON, XML, Javascript and SQL C# and OOPS concepts Nice to have skills Microsoft Azure knowledge Experience of data integration and data migration projects Power BI Reporting What education and certification More ❯
Employment Type: Permanent, Work From Home
Posted:

Microsoft Dynamics 365 CE Solution Architect

London, United Kingdom
Hybrid / WFH Options
Cognizant
custom report experience through SQL Server Reporting Services (SSRS) and FetchXML .NET Framework Version 4.5 or above including strong WCF\ Web API experience Knowledge of Web development, HTML, CSS, JSON, XML, Javascript and SQL C# and OOPS concepts Good to have experience and knowledge of Microsoft Azure Power Apps and Portal Field Services Customer Insight What education and certification credentials More ❯
Employment Type: Permanent, Work From Home
Posted:

Senior DevOps Engineer

London, United Kingdom
Hybrid / WFH Options
Lloyds Bank plc
OpenShift etc. Excellent knowledge and experience of continuous integration and delivery for fast and secure route to live. Technical understanding of Java and related technologies including Spring Boot, Maven, JSON, Kafka, REST APIs will be very advantageous. Knowledge of infrastructure, Linux, networking and security would be an added advantage. Practical experience with agile ways of working and related tools such More ❯
Employment Type: Permanent
Salary: GBP Annual
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

London, 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
Salary: GBP Annual
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:

Software Engineer Developer

London, United Kingdom
CDW LLC
BC and AL development language Configuration, PowerApps, Power Automate, and Common Data Service (CDS). Database Management - SQL Server, Azure SQL, Data Modelling, MongoDB Web Technologies - REST APIs, SOAP, JSON, XML. Experience of high-volume transactional systems demanding efficient code Experience of systems integrations Ability to document code in compliance with company standards and practices Ability to debug errors efficiently More ❯
Employment Type: Permanent
Salary: GBP Annual
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:

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:

Senior Software Engineer

London, United Kingdom
Hybrid / WFH Options
Lloyds Bank plc
Java, using a broad set of tools, techniques, and platforms, with a focus on proving it works and does the right thing. Experience working with Spring, Hibernate, REST APIs, JSON, Microservices, Kafka and Postgres. Good understanding of architecture and cloud native principles Good grasp of algorithms and data structures Familiar with test driven development approach Experience working with container environments More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Power Platform Developer

London, United Kingdom
Hybrid / WFH Options
Ashdown Group
including access control and data protection. Troubleshoot issues and work independently to research and resolve problems. Contribute to projects involving Microsoft Azure, Azure AD, Automation, PowerShell, SQL, Web Services, JSON, and coding languages such as Python or C# (advantageous but not essential). Skills and Experience Practical experience with Power Platform. Problem-solving skills and ability to work independently. Knowledge More ❯
Employment Type: Permanent
Salary: £30,000
Posted:

Power Platform Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Ashdown Group
including access control and data protection. Troubleshoot issues and work independently to research and resolve problems. Contribute to projects involving Microsoft Azure, Azure AD, Automation, PowerShell, SQL, Web Services, JSON, and coding languages such as Python or C# (advantageous but not essential). Skills and Experience Practical experience with Power Platform. Problem-solving skills and ability to work independently. Knowledge More ❯
Employment Type: Full-Time
Salary: £25,000 - £30,000 per annum
Posted:

MS Power Platform Engineer

City of London, London, United Kingdom
Espire Infolabs Limited
level proficiency in Microsoft Power Automate with demonstrated experience building complex workflows Strong experience across the Microsoft Power Platform (Power Apps, Power BI, Dataverse) Solid understanding of REST APIs, JSON, and system integration patterns Experience with Microsoft 365 ecosystem and Azure services Knowledge of data modeling, database concepts, and SQL Understanding of security frameworks and compliance requirements Communication & Collaboration Skills More ❯
Employment Type: Permanent
Posted:

PHP Developers (APIs) - London

London, United Kingdom
Hybrid / WFH Options
Xanda
based databasing Commercial experience with the use of DevOps toolsets for CI/CD automation Unit Testing Commercial experience with GraphQL and gRPC Expert in RESTful principles including JWT , JSON , Integration, yaml language and Open API Specification Standard. Strong experience in OAuth2 implementations using identity/SSO tools Knowledge of virtualised technologies and techniques, such as containerisation Experience with NoSQL More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Lead Azure Software Developer

London, United Kingdom
IBM Computing
maintain robust scalable APIs using modern frameworks and technologies. Azure Logic Apps: Configure and integrate Azure Logic Apps to enable seamless workflows and business process automation. Proficiency Coding Languages JSON JavaScript PowerShell & C# Azure Security: Implement and adhere to best practices in Azure security including identity management access control and threat protection. Front-End Development: Build responsive and user-friendly More ❯
Employment Type: Permanent
Salary: GBP Annual
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:

Scala Developer

City of London, London, United Kingdom
Stealth iT Consulting
Required Skills and Experience: Strong commercial experience in Scala development. Hands-on experience with the Play Framework . Solid understanding of functional programming principles. Experience working with REST APIs , JSON, and HTTP protocols. Familiarity with version control systems (Git). Agile/Scrum delivery environment experience. Understanding of TDD/BDD and automated testing frameworks. Experience working on public sector More ❯
Posted:

Scala Developer

London Area, United Kingdom
Stealth iT Consulting
Required Skills and Experience: Strong commercial experience in Scala development. Hands-on experience with the Play Framework . Solid understanding of functional programming principles. Experience working with REST APIs , JSON, and HTTP protocols. Familiarity with version control systems (Git). Agile/Scrum delivery environment experience. Understanding of TDD/BDD and automated testing frameworks. Experience working on public sector More ❯
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:

Software Engineer

Hounslow, England, United Kingdom
Scalian
a strong understanding of memory management, concurrency, and object-oriented design . Hands-on experience with AngularJS and front-end development ( HTML, CSS, JavaScript ). Familiarity with REST APIs , JSON , and web service integration . Experience working in software maintenance/support roles with bug fixing and system enhancements. Strong debugging and problem-solving skills across the stack. Familiar with More ❯
Posted:
JSON
London
10th Percentile
£46,960
25th Percentile
£51,250
Median
£67,500
75th Percentile
£80,000
90th Percentile
£104,500