1 to 25 of 49 JSON Jobs in London

Senior Integration Engineer (Azure)

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £600 per day
legacy by actively mentoring our permanent engineering team. What You Bring Integration Expertise: 5+ years of software development experience building robust APIs (REST, SOAP, JSON, XML) using C#, .NET, JavaScript, or Python. Azure Mastery: Deep, proven knowledge of Azure Integration Services, including API Management, Logic Apps, Service Bus, Azure Data ...

Microsoft Dynamics 365 Developer

Hiring Organisation
scrumconnect ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Power Pages. - Proficiency in C#, JavaScript, PowerFX, FetchXML, and Liquid Templates. - Experience with Azure DevOps, Git, Azure Functions, and Azure services. - Working knowledge of JSON, XML, and XSLT. - Experience with SQL Server 2016 and Azure cloud environments. - Solid understanding of GDS Service Standards and Agile delivery methodologies. - Experience working ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

Hiring Organisation
Transreport
Location
City of London, London, United Kingdom
experience with PostgreSQL, including performance tuning and complex queries. Experience with background job processing using Sidekiq and Redis. Solid understanding of RESTful API design, JSON serialization, and authentication (e.g., JWT, SSO). Hands-on experience with AWS services and containerised deployments (Docker). Experience troubleshooting and supporting production systems. Comfortable ...

Dotnet Developer

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

Senior Technical Lead

Hiring Organisation
Nextech Group Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
NinjaOne RMM, 3CX, Microsoft 365/Graph API * Strong JavaScript and/or Python for integration scripting and automation * REST API design - webhooks, OAuth, JSON transformation, event-driven architecture * Cross-platform data mapping across multiple SaaS systems * Technical documentation to a professional standard * Comfortable operating autonomously within a management structure ...

Senior Technical Lead

Hiring Organisation
Nextech
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £90,000 per annum
NinjaOne RMM, 3CX, Microsoft 365/Graph API* Strong JavaScript and/or Python for integration scripting and automation* REST API design - webhooks, OAuth, JSON transformation, event-driven architecture* Cross-platform data mapping across multiple SaaS systems* Technical documentation to a professional standard* Comfortable operating autonomously within a management structure ...

UI Engineer

Hiring Organisation
McCabe & Barton
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
integrations from third-party systems using APIs connected to back-office systems. Build and maintain web applications to support business processes (C#, Razor, ASP.NET, JSON, Redis Cache, Microservices). Technical Skills & Experience 5+ years of professional experience in .NET-based front-end development. 5+ years of hands-on expertise ...

Senior Technical Consultant - ServiceNow

Hiring Organisation
COMPUTACENTER (UK) LIMITED
Location
South East London, London, United Kingdom
Employment Type
Permanent
ServiceNow platform, including functionality, database structure, developer APIs, and development tools. Proficient in Web Technologies (e.g., JavaScript, SOAP/REST web services, XML & JSON). An open and friendly personality with strong customer-facing skills in both a virtual and face to face setting (including the ability to deliver presentations ...

DevOps Engineer (SC cleared)

Hiring Organisation
Lynx Recruitment Ltd
Location
London, UK
Employment Type
Full-time
/CloudFormation) CI/CD pipelines (e.g. Jenkins, Git) Serverless tech (AWS Lambda, API Gateway) Linux systems knowledge Scripting/coding (Python, YAML/JSON) Experience with enterprise systems Strong communication skills ...

DevOps Engineer (SC cleared)

Hiring Organisation
Lynx Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
/CloudFormation) CI/CD pipelines (e.g. Jenkins, Git) Serverless tech (AWS Lambda, API Gateway) Linux systems knowledge Scripting/coding (Python, YAML/JSON) Experience with enterprise systems Strong communication skills ...

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 ...

Front End React Developer

Hiring Organisation
Ascend Consulting
Location
NW7, Mill Hill, Greater London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £75000/annum Great Benefits
core principles Experience with Redux and RTK (RTKQuery also a bonus) Familiarity with RESTful APIs Knowledge of modern authorization mechanisms, such as JSON Web Token Familiarity with modern front-end build pipelines and tools (Github actions a bonus) Experience with common front-end development tools such as Babel, Webpack ...

NEC Housing Developer - Contract Role

Hiring Organisation
Reed
Location
London, UK
Employment Type
Full-time
Apex Proven experience configuring or upgrading NEC Housing management systems In-depth understanding of NEC Housing database structures and data models Experience with XML, JSON, SOAP, and REST integrations Desirable: Java development experience Local authority or social housing experience This is a specialist short-term engagement supporting a major implementation ...

NEC Housing Developer – Contract Role

Hiring Organisation
Reed
Location
Wembley, London, England, United Kingdom
Employment Type
Temporary
Salary
£550 per day, Inc benefits
Apex Proven experience configuring or upgrading NEC Housing management systems In-depth understanding of NEC Housing database structures and data models Experience with XML, JSON, SOAP, and REST integrations Desirable: Java development experience Local authority or social housing experience This is a specialist short-term engagement supporting a major implementation ...

Test Manager

Hiring Organisation
coforge
Location
London, United Kingdom
Employment Type
Permanent
/or NDC. Hands-on experience with test management tools such as JIRA, ALM, qTest, Zephyr. Good understanding of APIs (REST/SOAP), XML, JSON, NDC schemas. Knowledge of automation tools (Selenium, Postman, Karate, RestAssured). Experience 8 15+ years in QA/testing, with at least 3+ years ...

Founding Engineer

Hiring Organisation
Tarka Talent
Location
London Area, United Kingdom
with AI or ML systems in production and 3–5 years of substantive software/platform engineering Deep JavaScript/Node.js skills Azure Fluency JSON data structures, REST API design, and complex semi-structured data Practical LLM application — RAG architectures, prompt engineering etc Comfort with both relational ...

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 ...

Python Developer

Hiring Organisation
Apex Systems
Location
London Area, United Kingdom
engineering experience. Technical Skills: Hands-on experience with automated testing, mocking frameworks, and CI/CD pipelines. Experience with the design and implementation of JSON RESTful APIs, including versioning and backward compatibility. Strong understanding and exposure to object-oriented practices and principles. ...

Senior Data Engineer

Hiring Organisation
DATAHEAD
Location
City of London, London, United Kingdom
datasets for reporting and analytics Comfortable working in a fast-paced, evolving data environment Nice to Have Experience with Airflow or Dagster Working with JSON/semi-structured data Familiarity with CI/CD pipelines and Git Why Join Work with high-volume, real-world marketing data across multiple platforms ...

Ruby Developer

Hiring Organisation
Proactive Appointments
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 80,000 Annual
Strong understanding of OOP & Rails architecture Extensive experience with PostgreSQL (performance tuning, complex queries) Background job processing with Sidekiq & Redis Expertise in RESTful APIs , JSON, JWT, SSO Experience with AWS & Docker Production system support & troubleshooting Strong communication skills & Agile/Scrum experience Ruby on Rails Developer Due to the volume ...

Systems Integration Engineer | E-commerce | Shopify | Fully Remote | £280 Outside IR35

Hiring Organisation
VirtueTech Recruitment Group
Location
East London, London, United Kingdom
integration environments Strong API integration experience (Shopify, Magento, SAP, Oracle etc.) Experience integrating with ERP, OMS & PIM systems Knowledge of integration methods (API, EDI, JSON, XML, streaming) Familiarity with AWS, SQL & analytics/reporting tools Experience working in Agile environments Strong problem-solving & stakeholder management skills 🌟 This is a high ...

Systems Integration Engineer | E-commerce | Shopify | Fully Remote | £280 Outside IR35

Hiring Organisation
VirtueTech Recruitment Group
Location
City of London, London, United Kingdom
integration environments Strong API integration experience (Shopify, Magento, SAP, Oracle etc.) Experience integrating with ERP, OMS & PIM systems Knowledge of integration methods (API, EDI, JSON, XML, streaming) Familiarity with AWS, SQL & analytics/reporting tools Experience working in Agile environments Strong problem-solving & stakeholder management skills 🌟 This is a high ...

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. ...

C# .Net Software Developer

Hiring Organisation
Ashdown Group
Location
Central London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
with solid Azure cloud experience. The ideal Senor C# .Net Developer will have previous experience with: C# & .Net Core React.js &/or Next.js LINQ, JSON & Inversion of Control Azure PaaS, Function Apps, Blob/Table Storage, Service Bus Topics, Azure Search and API Management Infrastructure as Code (ideally Terraform ...