1 to 25 of 33 Remote/Hybrid JSON Jobs in London

Senior Software Engineer

Hiring Organisation
Cyber Guardian Consulting Group, LLC
Location
London Area, United Kingdom
alerts, retries) Help shape engineering culture and hiring as we build out the London team Required Qualifications Strong experience working with REST APIs and JSON/XML payloads Proficiency in Python or other backend languages Proficient or experienced with cloud technologies such as AWS, Azure, or GCP Experience debugging ...

Developer (MS) (18 Months FTC)

Hiring Organisation
London Borough of Barnet
Location
Barnet, London, United Kingdom
Employment Type
Contract
Contract Rate
£56376 - £61653/annum
core development languages such as PowerShell, JavaScript, C#, Python or similar. - Experience working with data sources including MS SQL, Dataverse, APIs, REST services, JSON/XML and other integration methods. - Strong problemsolving skills and the ability to identify creative solutions to longstanding challenges. - Excellent communication skills, with the ability ...

Senior Data Engineer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £600 per day
building dashboards and reports using Power BI Programming or scripting experience (e.g. C#, Python, PowerShell) Experience consuming APIs and working with semi-structured data (JSON, XML) Experience with Microsoft Azure data services such as Azure Data Factory, Azure Data Lake, Azure SQL, Azure Synapse, Azure Functions, Cosmos DB Familiarity with ...

Data Engineer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500.00 - £550.00 per hour
building dashboards and reports using Power BI Programming or scripting experience (e.g. C#, Python, PowerShell) Experience consuming APIs and working with semi-structured data (JSON, XML) Experience with Microsoft Azure data services such as Azure Data Factory, Azure Data Lake, Azure SQL, Azure Synapse, Azure Functions, Cosmos DB Familiarity with ...

Azure AI Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £500 to £550 per day
operationalizing AI solutions. Practical experience architecting and implementing RAG-based systems using Azure Search or vector index stores. Strong programming experience in Python, C#, JSON, or Node.js for integrating AI models and building backend services. Experience with Azure cloud services including Azure Functions, Logic Apps, Storage, App Services, Key Vault ...

Developer (AI/RPA) (18 Months FTC)

Hiring Organisation
London Borough of Barnet
Location
Barnet, London, United Kingdom
Employment Type
Contract
Contract Rate
£56376 - £61653/annum
workflows, bots and automation solutions - Experience developing and maintaining automated pipelines for AI tools - Ability to integrate multiple systems and applications using APIs, JSON, XML, CSV, or other data interchange methods. - Knowledge of database environments (e.g., MS SQL, Dataverse, OneLake). - Experience working with or supporting machine learning models, including ...

Prompt Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £500 to £550 per day
AI. Practical experience deploying LLM solutions on Azure (e.g., Azure OpenAI, Azure Functions, App Service, Key Vault). Proficiency with REST APIs and JSON; integrating LLM calls into applications/services using Python or C# (Node.js also acceptable). Working knowledge of embeddings, document chunking strategies, indexing, semantic search ...

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 ...

Mainframe Developer with CICS Webservices

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £350 to £400 per day
extensive knowledge in CICS webservices. Development experience using FileAid, Xpeditor, IBM Explorer for z/OS, and Visual Studio. Proficient with SOAP, WSDL, and JSON, with a comprehensive understanding of SOA and RESTful APIs. Experience working with code repositories, bug tracking tools, and wikis. Tools include GitLab, Endevor, JIRA ...

Z/OS Mainframe Engineer

Hiring Organisation
Lorien
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
CICS webservices, ZOS Connect EE, DB2, and batch processing. Strong skills in Mainframe transaction management, JCL, and system debugging tools. Familiarity with SOAP, WSDL, JSON, and integration patterns such as SOA and RESTful APIs. Good working knowledge of AWS services, particularly CloudWatch, DynamoDB, and Lambda, including monitoring, troubleshooting, and optimisation. ...

Infrastructure / DevOps Engineer

Hiring Organisation
Morgan Spencer
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£54,000 - £58,000 per annum
backup and restoration. Extensive Git/GitHub experience. Strong shell scripting skills (bash, .sh, .yml etc.). Familiarity with common configuration formats (YAML, TOML, JSON). Confident using command-line interfaces. Experience with DNS setup, SSL certificates and Cloudflare configuration. Desirable Experience configuring and maintaining Moodle. Knowledge ...

Mainframe Engineer

Hiring Organisation
Impellam Group
Location
London Area, United Kingdom
CICS webservices, ZOS Connect EE, DB2, and batch processing. Strong skills in mainframe transaction management, JCL, and system debugging tools. Familiarity with SOAP, WSDL, JSON, and integration patterns such as SOA and RESTful APIs. Good working knowledge of AWS services, particularly CloudWatch, DynamoDB, and Lambda, including monitoring, troubleshooting, and optimisation. ...

Pega Developer

Hiring Organisation
Project Recruit
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 400 - 600 Daily
Pega architecture and rule resolution, including class structure, rulesets, circumstancing, inheritance, and performance tuning. Experience in building integrations using REST/SOAP services, JSON/XML, and handling Real Time and batch data exchanges with upstream/downstream systems. Strong understanding of data modelling in Pega, including Data Pages, data ...

Mulesoft Architect

Hiring Organisation
167 Solutions Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Anypoint Platform (Studio, API Manager, Runtime Manager) Solid understanding of API-led connectivity and enterprise integration patterns Experience with REST, SOAP, RAML/OpenAPI, JSON, XML Strong DataWeave development and transformation experience Familiarity with CI/CD pipelines and cloud deployment models Ability to manage both design-level architecture ...

Power Automate Specialist / Automation Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £400 to £425 per day
Dynamics 365 (CE/CRM) and Dataverse. Solid understanding of Azure services: Logic Apps, Functions, APIM, Event Grid, Service Bus. Proficiency with REST APIs, JSON, OAuth, and Microsoft Graph. Experience with Power Apps, Power BI, and Power Platform ALM is beneficial. Familiarity with RPA best practices and process mapping. Desirable ...

Shopify Developer

Hiring Organisation
Halian Technology Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
HTML5, CSS3/SCSS, JavaScript ES6+) Experience building custom Shopify themes (not just modifying pre-built themes) Familiarity with Shopify 2.0 architecture (sections everywhere, JSON templates) Experience integrating third-party apps and APIs Strong understanding of responsive design principles Git/version control experience Ability to manage multiple client projects ...

Java Developer with SQL & GIT

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Permanent
Salary
£90,000
Very good understanding of industry standard trading protocols like FIX FpML Proficiency with Data Standards Data Modelling Proficiency with textbased formats like XML JSON Strong Proficiency with messaging frameworks MQ Kafka Proficiency with Spring Spring Boot Spring Integration Familiarity with testing patterns and dev ops Familiarity with cloud containerization Comfortable ...

AI Platform Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
operate production-grade AI agents on GCP using Google's ADK. Integrate AI systems with policy, claims and CRM platforms through secure REST and JSON API services. Develop scalable RAG pipelines including ingestion, text processing, metadata handling and vector search. Implement observability and evaluation frameworks covering monitoring, A/ ...

Senior React Native Engineer - London Hybrid : £100k

Hiring Organisation
Hunter Bond
Location
City of London, London, United Kingdom
Bring 5+ years’ experience delivering production mobile apps for iOS and Android. Strong expertise with iOS/Android SDKs, remote data handling (REST/JSON) and third-party integrations. Solid understanding of mobile architecture, trends and best practices across the entire development lifecycle. Clear, confident communication skills — written, verbal ...

Azure AI Architect

Hiring Organisation
Infoplus Technologies UK Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
completing architecture risk assessments. Proficiency in Python and/or C# for service integration, evaluation tooling, and adapters; solid understanding of REST APIs, JSON, and async patterns. Mode of working: Hybrid(3 days) Work locations: London, Tunbridge wells, Ipswich, Bolton ...

Azure Ai Architect

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £650 to £700 per day
completing architecture risk assessments. Proficiency in Python and/or C# for service integration, evaluation tooling, and adapters; solid understanding of REST APIs, JSON, and async patterns. Desirable skills/knowledge/experience Experience with vector databases (Cosmos DB with vector search, Redis Enterprise, or Pinecone) and semantic ranking. Knowledge ...

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 ...

Pega Lead System Architect LSA

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Digital Messaging. Define non-functional requirements (scale, resiliency) and node strategy: Queue Processors vs. Job Schedulers, background processing, caching. Integration architecture: REST/JSON, SOAP (if needed), OAuth2/SAML, eventing (Kafka/JMS), idempotency, pagination, circuit breaker and retry patterns. Data design: enterprise data model, data pages (scope, refresh ...

Head of Engineering

Hiring Organisation
Zeus® | AI-Powered Logistics
Location
City of London, London, United Kingdom
/S/4HANA patterns), TMS, WMS, carrier/telematics platforms, customer master systems Own integration architecture across: Inbound/outbound APIs (REST/JSON), event-driven messaging (queues/topics), batch feeds, file-based interfaces (S3-based exchanges), structured email fallbacks Demonstrate practical experience with API management and integration ...