26 to 50 of 51 JSON Jobs in London

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 ...

Mainframe Modernization - IBM DataPower Engineer

Hiring Organisation
DCV Technologies Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
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: (Up to 10, Avoid repetition) Develop ...

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 ...

Pega Lead System Architect LSA

Hiring Organisation
Randstad Technologies
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
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 ...

BI Data Developer

Hiring Organisation
Chambers and Partners
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
working knowledge of data integration and modelling, including writing SQL, working with relational databases, and connecting to data sources such as Databricks, data lakes, JSON files, and API-driven services. Experience working confidently across multiple, complex datasets, understanding data lineage, definitions, and limitations, and ensuring outputs are accurate, consistent ...

Senior Market Data Business Analyst

Hiring Organisation
Teksystems
Location
Central London, London, United Kingdom
Employment Type
Contract
Elastic Search, Kibana). XP with data visualization tools (e.g., Grafana, Power BI, Tableau). Proficient in data analysis for various data formats (e.g., JSON, CSV, SQL). Education Degree (or equivalent) ideally in a numerate subject or computing related subject Professional certifications in relevant skill areas are advantageous. Skills ...

OpenShift Telemetry Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £450 to £500 per day
alerting. Strong data engineering skills in Python (or similar) for ETL/ELT, enrichment, and validation. Knowledge of event schemas (Avro/Protobuf/JSON), contracts, and backward/forward compatibility. Familiarity with observability standards and practices; ability to drive toward Level 4 maturity (proactive monitoring, automated insights). Understanding ...

Senior Android Engineer (Fully Remote)

Hiring Organisation
La Fosse
Location
East London, London, United Kingdom
UIKit Solid understanding of MVVM and Clean Architecture patterns Experience building modular, testable codebases Comfort with dependency injection patterns Experience integrating APIs (REST, JSON) Confident with Git and collaborative workflows Proven track record of owning and shipping complex Android apps in production Nice to Have SwiftUI, VIPER, Combine, or RxSwift ...

Senior Android Engineer (Fully Remote)

Hiring Organisation
La Fosse
Location
Central London / West End, London, United Kingdom
UIKit Solid understanding of MVVM and Clean Architecture patterns Experience building modular, testable codebases Comfort with dependency injection patterns Experience integrating APIs (REST, JSON) Confident with Git and collaborative workflows Proven track record of owning and shipping complex Android apps in production Nice to Have SwiftUI, VIPER, Combine, or RxSwift ...

Technical Partner Specialist (Remote - Europe-based)

Hiring Organisation
Stream
Location
East London, London, United Kingdom
partner-facing role (integrations, solutions engineering, technical support, developer support, technical account management, etc.). Strong API fluency - comfortable working with REST APIs, webhooks, JSON payloads, authentication, and environments. Ability to read API documentation, diagnose integration issues, and clearly explain technical concepts to technical and non-technical stakeholders. Strong written ...

Technical Partner Specialist (Remote - Europe-based)

Hiring Organisation
Stream
Location
Central London / West End, London, United Kingdom
partner-facing role (integrations, solutions engineering, technical support, developer support, technical account management, etc.). Strong API fluency - comfortable working with REST APIs, webhooks, JSON payloads, authentication, and environments. Ability to read API documentation, diagnose integration issues, and clearly explain technical concepts to technical and non-technical stakeholders. Strong written ...

Oracle Cloud Integrations Specialist

Hiring Organisation
Solos Consultants Ltd
Location
South West London, London, United Kingdom
Employment Type
Contract
Contract Rate
£650 per day
Cloud Service (VBCS) Integrate Oracle Fusion Cloud applications (ERP and HCM) with other enterprise systems Develop and unit test integrations using REST, SOAP, and JSON payloads Produce and maintain integration design documentation and release notes Work with predefined statements of work and deliver agreed technical outcomes Collaborate closely with architects … services Experience working with OAuth, IAM, and JWT security technologies Strong understanding of systems integration best practices and architectural patterns Experience with XML, JSON, XSLT, Git, Postman, and related tools Strong communication skills and ability to work effectively as part of a team Desirable Experience Knowledge of Oracle Cloud Infrastructure ...

Oracle Developer

Hiring Organisation
Invitise Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £650 per day
builds and enhancements to current workstreams. Essential experience: Strong development background Oracle Integration Cloud Oracle Fusion Cloud Integration work with SOAP, REST, JSON OIC, Postman, Curl Oracle VBCS ERP and HCM integrations via OIC OAUTH, IAM, JWT GIT, XML, JSON, XSLT Desirable: Public cloud and security knowledge DevOps background Experience … processes Understanding of secure development practices Interested? Please apply below. Oracle Integration Cloud, OIC, Oracle Fusion, Oracle ERP, HCM, VBCS, OCI, Integrations, REST, SOAP, JSON, SC Cleared, Inside IR35. ...

Data Engineer TV Advertising Data (FAST)

Hiring Organisation
Datatech Analytics
Location
London, United Kingdom
Employment Type
Permanent
Salary
£85,000
Azure Data Factory or equivalent Ability to write efficient, reusable scripts for transformation, validation, and automation Hands-on experience integrating data from APIs (REST, JSON), including automated data collection Solid understanding of data modelling best practices for analytics and dashboards Confidence working with large, complex datasets across multiple formats … JSON, Parquet, databases, APIs) Strong problem-solving skills and the ability to diagnose and resolve data issues Excellent communication skills and experience working with cross-functional teams Genuine curiosity about how data drives content performance, audience behaviour, and monetisation If this sounds like the role for you then please apply ...

Oracle Cloud Integrations Specialist

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£650/day Inside IR35
Integration Cloud (OIC) Experience Good Oracle Fusion Cloud Experience Hands-on with development & unit testing of integration components & web services (SOAP/REST/JSON Payload) using OIC, Postman, Curl Oracle VBCS to develop custom elements of the service Strong experience of system interfaces (predominantly on a PaaS Cloud) Teamwork … Collaboration Skills Oracle ERP, HCM connectivity using Oracle Integration Cloud OAUTH, IAM, JWT Technoligies GIT, XML, JSON, XSLT, SOAPUI, Postman, Curl In depth knowledge of systems integration best practices and common architectural patterns. Desirable Knowledge of public cloud (IaaS) technologies including relevant security and IAM controls Security administration and auditing ...

Senior AI Engineer

Hiring Organisation
Chambers and Partners
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
expected interview topics/questions. Main Duties and Responsibilities Data & Retrieval Build robust ingestion pipelines for PDFs/Word/Excel/Audio/JSON and semi-structured sources. Design RAG systems: chunking strategies, document schemas, metadata, hybrid/dense retrieval, re-ranking, and grounding. Manage vector/keyword indexes … Design, build, and maintain traditional ML and LLM models and pipelines. Build LLM apps using LangGraph/LangChain: tools/function calling, structured outputs (JSON Schema), agents, and multi-step reasoning. Implement ASR/TTS and multimodal where relevant (e.g., Whisper). Choose customization paths pragmatically: prompt engineering, system prompts ...

Oracle Cloud Integrations Specialist

Hiring Organisation
GTC RECRUITMENT LIMITED
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 per day
Maintainandbuildontopreviouslydeliveredintegrationworkstreams. TakeassignedSOWs/tasksandworkindependentlytodeliverhigh-qualityoutputs. Develop,validate,andreviewphysicalintegrationdesignsandproducerelatedtechnicaldocumentation. DeployVBCSapplicationsintodevandtestenvironmentsusingSECDEVOPSpractices. Workcollaborativelywithinamultidisciplinarytechnicalteam. MandatorySkills&Experience 3+yearsdevelopmentexperience. 2+yearsOracleIntegrationCloud(OIC)experience. 2+yearsOracleFusionCloudexperience. Hands-ondevelopmentandunittestingofintegrationcomponents&webservices(SOAP/REST/JSON),usingOIC,PostmanandCurl. ExperiencedevelopingcustomelementsusingOracleVBCS. 3+yearsexperienceworkingwithsysteminterfaces,particularlyPaaScloudintegrations. Strongcommunicationandteamworkskills. ExperienceintegratingOracleERPandHCMviaOIC. KnowledgeofOAUTH,IAM,JWTtechnologies. ExperiencewithGIT,XML,JSON,XSLT,SOAPUI,Postman,Curl. Strongunderstandingofsystemsintegrationbestpracticesandarchitecturalpatterns. Excellentwrittenandverbalcommunicationskills. DesirableSkills Knowledgeofpubliccloud(IaaS)technologiesincludingsecurityandIAMcontrols. Experienceinsecurityadministrationandauditingofprivilegedsystemsaccess. Abilitytoprovidetechnicaldeliveryprogressupdates ...

Boomi Integration Developer

Hiring Organisation
Noir
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £620 per day
Boomi Integration Developer - 6 Months Contract - £620/Day (Inside IR35) - Remote Working (Tech stack: Boomi Integration Developer, ERP, WMS, API, REST, SOAP, JSON, XML, CSV, Programmer, Full Stack Engineer, Architect, Boomi Integration Developer) After 15 years' experience in the fashion industry, our client has a mission to change … achieve this, our client is looking for contract Boomi Integration Developer with experience in some or the following: ERP, WMS, API, REST, SOAP, JSON, XML and CSV. The initial contract will be written for 6 months and extended thereafter. Location: Remote Working Rate: £620/Day - Inside IR35 Applicants must ...

Senior Android Engineer (with iOS experience)

Hiring Organisation
The Dots
Location
Greater London, England, United Kingdom
Deep knowledge of MVVM & Clean Architecture patterns ● Track record of building modular & testable code ● Good understanding of dependency injection ● Experience in API integration (REST, JSON) ● Experience with Git source control ● Exposure to AI-assisted development ● Demonstrated track record of shipping, owning, and maintaining complex Android applications in production environments Nice … have ● Experience using the JSON:API spec ● SwiftUI VIPER, either Combine or RxSwift ● Experience working with large, multi-modular projects ● Exposure to CI/CD pipelines ● Strong UI/animation sensibility ● Experience with multi-tenant or white-label apps Working at The Dots ● Kind, ambitious, inclusive team ● Flexible working, remote ...

Game Analyst

Hiring Organisation
Sing King
Location
Greater London, England, United Kingdom
want to play and learn more. You’re not afraid to get in the weeds with the raw data (be that tables, CSVs, or JSON) and with your advanced SQL proficiency you can query, transform, and analyse large datasets with ease. If the data doesn’t exist … basic image or video editing skills in a pinch. BONUS POINTS Experience with Python or R for deeper analysis and automation Comfortable working with JSON, event-based schemas, and Google Cloud tools like BigQuery Familiarity with Firebase, Amplitude, or GA4 for event tracking and analysis Strong understanding of content ...

Automation Test Engineer

Hiring Organisation
Profile 29
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £500 per day
frameworks autonomously Experience with common automation tools/frameworks (e.g. Playwright, Cypress, Selenium, REST-assured, etc.) Solid understanding of REST APIs, HTTP methods, and JSON Experience working with CI/CD pipelines Profile 29 recruitment keywords: Software Tester testing test QA quality assurance Automation Test Engineer React front-end Spring … Boot APIs API automation frameworks Playwright Cypress Selenium REST-assured REST APIs HTTP JSON CI/CD London remote hybrid contract freelance AI artificial intelligence ...

Senior Software Implementation Consultant

Hiring Organisation
SF Recruitment (Tech)
Location
North London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
system engineering, software development or technical change and release - Any experience working within insurance would be a plus - Excellent communication and customer engagement skills - JSON file format understanding - A real passion for AI and implementing into business applications - This Senior Software Implementation Consultant will receive the following: - Starting salary … then please apply now for further information and to be considered. Senior Software Implementation Consultant Remote (London, Birmingham hubs) Low code, FinTech, InsurTech, configuration, JSON, software applications ...