1 to 25 of 76 Permanent JSON Jobs in London

Data Scientist & ML Specialist — Contract Role

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
matplotlib, etc. Familiar with relational & non‐relational databases such as SQL Server, MySQL, Mongo. Experience interacting with REST APIs. Developed web services and used JSON as a data exchange format. Nice to have - Experience with AWS. Nice to have - Experience working in an agile development process. Salary: As per industry ...

NetSuite Technical Lead - Remote working

Hiring Organisation
Communicate Recruitment Solutions LTD
Location
London, UK
Employment Type
Full-time
Systems Integration Design, implement, and support integrations between NetSuite and third-party applications Work with REST/SOAP APIs and data formats such as JSON and XML Support and enhance middleware-based integrations (e.g., Boomi) and direct custom integrations Technical Design & Architecture Translate complex business requirements into technical specifications ...

NetSuite Technical Lead - Remote working

Hiring Organisation
Communicate Recruitment Solutions LTD
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £80,000 per annum
Systems Integration Design, implement, and support integrations between NetSuite and third-party applications Work with REST/SOAP APIs and data formats such as JSON and XML Support and enhance middleware-based integrations (e.g., Boomi) and direct custom integrations Technical Design & Architecture Translate complex business requirements into technical specifications ...

Director, Application Development Manager

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
level proficiency in Java and frameworks like Spring Boot for building microservices. Strong expertise with relational databases (Oracle) and data modelling (canonical data models, JSON). Deep experience with enterprise messaging platforms (Kafka, IBM MQ). Proven experience implementing AI/ML solutions (using Python or other frameworks) to solve ...

Integration Engineer

Hiring Organisation
17918
Location
London, United Kingdom
solutions with customers as they are writing clean, reliable code. What you'll bring Experience developing with C#/.NET Knowledge of REST APIs, JSON/XML and SQL Strong analytical and troubleshooting skills Excellent communication and a collaborative mindset Experience with Azure or enterprise integrations would be a bonus ...

Fabric Data Engineer

Hiring Organisation
Initialize
Location
London, UK
Employment Type
Full-time
Python and/or PySpark for data transformation and automation. Understanding of Power BI, semantic models, DAX and reporting requirements. Experience working with APIs, JSON, CSV, Parquet, Delta tables and common enterprise data formats. Knowledge of data governance, access control, data quality, metadata and lineage. Good documentation skills ...

QA Engineer

Hiring Organisation
E-Solutions
Location
London, UK
Experience with: Automation frameworks (Jest framework, Java/Springboot, or similar) API testing tools (Postman, REST clients) Ability to: Create automated test suites Validate JSON-based inputs/outputs for APIs and events Knowledge of: BDD frameworks (Cucumber - good to have) Application Modernization Testing Experience in testing: Microservices architectures ...

QA Engineer

Hiring Organisation
E-Solutions
Location
City of London, London, United Kingdom
Experience with: Automation frameworks (Jest framework, Java/Springboot, or similar) API testing tools (Postman, REST clients) Ability to: Create automated test suites Validate JSON-based inputs/outputs for APIs and events Knowledge of: BDD frameworks (Cucumber - good to have) Application Modernization Testing Experience in testing: Microservices architectures ...

QA Engineer

Hiring Organisation
E-Solutions
Location
City of London, Greater London, UK
Experience with: Automation frameworks (Jest framework, Java/Springboot, or similar) API testing tools (Postman, REST clients) Ability to: Create automated test suites Validate JSON-based inputs/outputs for APIs and events Knowledge of: BDD frameworks (Cucumber - good to have) Application Modernization Testing Experience in testing: Microservices architectures ...

Fabric Data Engineer

Hiring Organisation
Initialize
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 per annum
Python and/or PySpark for data transformation and automation. Understanding of Power BI, semantic models, DAX and reporting requirements. Experience working with APIs, JSON, CSV, Parquet, Delta tables and common enterprise data formats. Knowledge of data governance, access control, data quality, metadata and lineage. Good documentation skills ...

Dotnet Developer

Hiring Organisation
LanceSoft UK
Location
London, UK
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/ ...

Dotnet Developer

Hiring Organisation
LanceSoft UK
Location
London Area, United Kingdom
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/ ...

Dotnet Developer

Hiring Organisation
LanceSoft UK
Location
City of London, Greater London, UK
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/ ...

Integration Developer - Boomi

Hiring Organisation
Required IT
Location
London, UK
Employment Type
Full-time
Working with Azure Integration Services — including Logic Apps, API Management, Service Bus, and Event Grid Working with SQL databases and handling complex data transformations (JSON, XML) Writing clean, maintainable code in Python or similar languages to support integration workflows Contributing to integration strategy and technical architecture decisions Providing technical guidance ...

Integration Developer – Boomi

Hiring Organisation
Required IT
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
Working with Azure Integration Services — including Logic Apps, API Management, Service Bus, and Event Grid Working with SQL databases and handling complex data transformations (JSON, XML) Writing clean, maintainable code in Python or similar languages to support integration workflows Contributing to integration strategy and technical architecture decisions Providing technical guidance ...

Verisk Rulebook Configurator-6months-London

Hiring Organisation
Kirtana Consulting
Location
London, UK
Employment Type
Full-time
price-output reconciliation. Familiarity with JIRA, Confluence, Azure DevOps, or similar delivery tools. Ability to document configuration logic clearly. Desirable Understanding of APIs, JSON, SQL, or data mapping. Exposure to rating services, quote/bind platforms, broker portals, or delegated authority platforms. Experience with document production, workflow configuration, or downstream ...

AWS Databricks Engineer

Hiring Organisation
Capgemini
Location
London, UK
Experience in building ETL/ELT pipelines for batch and near-real-time data processing. Experience with data formats such as Parquet, Avro, ORC, JSON, and CSV. Good understanding of data modelling, data warehousing, and dimensional modelling concepts. Experience with data validation, reconciliation, data quality, audit, and logging frameworks. Experience ...

AWS Databricks Engineer

Hiring Organisation
Capgemini
Location
City of London, Greater London, UK
Experience in building ETL/ELT pipelines for batch and near-real-time data processing. Experience with data formats such as Parquet, Avro, ORC, JSON, and CSV. Good understanding of data modelling, data warehousing, and dimensional modelling concepts. Experience with data validation, reconciliation, data quality, audit, and logging frameworks. Experience ...

AWS Databricks Engineer

Hiring Organisation
Capgemini
Location
London Area, United Kingdom
Experience in building ETL/ELT pipelines for batch and near-real-time data processing. Experience with data formats such as Parquet, Avro, ORC, JSON, and CSV. Good understanding of data modelling, data warehousing, and dimensional modelling concepts. Experience with data validation, reconciliation, data quality, audit, and logging frameworks. Experience ...

C# .Net Developer

Hiring Organisation
Randstad Technologies
Location
London, UK
Employment Type
Full-time
C# and .NET/.NET Core. Deep understanding of Object-Oriented Programming (OOP) and architectural design principles. Proven experience building and implementing REST/JSON APIs. Solid experience with relational databases (e.g., SQL Server). Familiarity with unit/integration testing and automated CI/CD pipelines. Financial Domain Knowledge ...

Threat Detection Engineer

Hiring Organisation
Barclay Simpson
Location
London, UK
Technical Expertise Hands-on experience with SIEM platforms such as Splunk, Microsoft Sentinel, QRadar, Elastic, ArcSight, LogRhythm, or Exabeam Strong understanding of log formats (JSON, syslog, XML, CEF) and ingestion methods (APIs, Kafka, Event Hubs, agents) Experience in detection engineering, threat modelling, and attacker behaviour analysis Proven ability to build ...

Threat Detection Engineer

Hiring Organisation
Barclay Simpson
Location
London Area, United Kingdom
Technical Expertise Hands-on experience with SIEM platforms such as Splunk, Microsoft Sentinel, QRadar, Elastic, ArcSight, LogRhythm, or Exabeam Strong understanding of log formats (JSON, syslog, XML, CEF) and ingestion methods (APIs, Kafka, Event Hubs, agents) Experience in detection engineering, threat modelling, and attacker behaviour analysis Proven ability to build ...

Threat Detection Engineer

Hiring Organisation
Barclay Simpson
Location
City of London, Greater London, UK
Technical Expertise Hands-on experience with SIEM platforms such as Splunk, Microsoft Sentinel, QRadar, Elastic, ArcSight, LogRhythm, or Exabeam Strong understanding of log formats (JSON, syslog, XML, CEF) and ingestion methods (APIs, Kafka, Event Hubs, agents) Experience in detection engineering, threat modelling, and attacker behaviour analysis Proven ability to build ...

Mulesoft Developer - Fully Remote

Hiring Organisation
Square One Resources
Location
London, UK
Employment Type
Full-time
runtime, DataWeave 2.x, and Anypoint Studio. Demonstrable experience deploying to CloudHub (shared or dedicated) and/or Runtime Fabric. Solid understanding of REST, SOAP, JSON, XML, and related web standards. Experience working in Agile/Scrum and multi-squad environments. Desirable Skills/Experience Although not essential, the following skills ...

Implementation Lead (EMEA)

Hiring Organisation
WTW
Location
Greater London, United Kingdom
Employment Type
Full Time
EntraID, Group Policy Strong exposure to automation (Azure DevOps, GitHub, Puppet, Terraform) Good understanding of provisioning and configuration systems – DSC, ARM Python, PowerShell, CLI, JSON SQL, SQL Azure, MS Fabric, Databricks IIS (Internet Information Services) Windows Operating System (Windows 10, Windows 11) Windows Server (2016, 2019, 2022, 2025) Exposure ...