13 of 13 JSON Jobs in the City of London

QA Engineer

Hiring Organisation
Retelligence
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 50,000 - 55,000 Annual
database queries. Experience in non-functional testing (e.g., performance, load, stress testing) using tools like Neoload is beneficial. Familiarity with financial system testing (XML, JSON, FIX, SFTP, or Swift) is a plus. Knowledge of QA automation methodologies, tools, and agile processes. Strong understanding of testing techniques such as Equivalence Partitioning ...

Senior Software Engineer

Hiring Organisation
JNC Recruitment Limited
Location
City of London, Greater London, UK
principles (TypeScript, HTML, CSS/SCSS) Strong SQL Server (T-SQL) Experience of building and consuming web services and APIs (SOAP, REST using XML, JSON ) In line with the Conduct Regulations 2003, when advertising permanent vacancies JNC Recruitment are acting as an Employment Agency, and when advertising temporary/contract ...

Quality Assurance Automation Engineer

Hiring Organisation
Retelligence
Location
City of London, London, United Kingdom
Move beyond surface-level checks; you will utilize SQL and exploratory techniques to identify root causes within high-velocity messaging streams ( FIX, Swift, XML, JSON ). Pipeline Mastery: Own the quality gate within the CI/CD lifecycle, ensuring automated triggers and data quality checks are seamless and fail-safe. ...

Workday Integration Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £501 per day
Integration: Experience with RESTful and SOAP APIs to connect Workday with other systems and applications. Data Formats: Familiarity with various data formats like XML, JSON, and CSV for data exchange and transformation. Database Skills: Understanding of database concepts and SQL for managing and querying data. Security and Authentication: Knowledge ...

Junior Software Engineer (Client Facing Analytics)

Hiring Organisation
permutable.ai
Location
City of London, London, United Kingdom
Curious about how data products are actually used by clients Interest in financial markets, trading, or applied ML Nice to Have Experience with APIs, JSON, or data pipelines Familiarity with back testing, signals, or quantitative strategies Basic SQL knowledge Exposure to financial or commodities markets Tech & Tools You’ll Work ...

Digital Platform Architect (power platform)

Hiring Organisation
Morgan Philips Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum
Dataverse. Must have project experience in delivering complex solutions. Experience with some of the following development languages such as C#, .Net, JavaScript, HTML, CSS, JSON and experience working with XML based APIs. Experience within Microsoft Office 365 and associated platform products, Azure AD, SSO etc. Ability to work independently ...

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 ...

Lead Data Engineer(Kakfa/Openshift)

Hiring Organisation
Synechron
Location
City of London, London, United Kingdom
dashboards/alerts. Proficiency in Python or similar languages for ETL/ELT, enrichment, and validation workflows. Solid experience with Avro/Protobuf/JSON schemas and compatibility best practices. Knowledge of observability frameworks and ability to drive towards Level 4 maturity (proactive automation). Understanding of multi‐cluster ...

Data Modeler

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
ensure data models align with business and technical goals. Leveraging tools such as ERWin, Sparx, RSA, Visio , and handling semi-structured data formats (JSON, XML, Parquet). SKILLS AND EXPERIENCE The successful Data Modeller will have the following skills and experience: Proven experience in data modelling within consulting or financial ...

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. ...

Web Developer

Hiring Organisation
Reed
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£30,000 - £50,000 per annum, Inc benefits
Web Developer Location: London Job Type: Full-time We are seeking a creative and detail-oriented Web Developer to join our client's dynamic Web Development team. As they expand their client base and enhance ...

Data Engineer

Hiring Organisation
Lomond
Location
City of London, London, United Kingdom
models, tests, and documentation. API Integrations & Semistructured Data Build connectors for REST/GraphQL APIs with proper authentication and schema handling. Ingest and normalise JSON/Parquet with schema evolution. Reliability, Observability & Support Implement monitoring, freshness checks, and incident response. Troubleshoot production issues and ensure reliable pipelines. Skills & Experience (Required … optimisation (file/partition strategy, caching, query design). Integration: API ingestion (OAuth2/API keys, pagination, error handling, schema evolution). Working with JSON/Parquet and Delta/Parquet storage patterns. Administration & Governance: Foundational DBA skills (backup/retention, access control, resource monitoring, performance/cost optimisation). ...

Electronic Data Interchange Specialist

Hiring Organisation
Revoco
Location
City of London, Greater London, UK
partners, and external services • Troubleshoot EDI/API transactions and stabilise new integrations as they go live • Translate business requirements into technical specs using JSON, XML, SQL, and API standards • Ensure compliance with regional e‐Invoicing regulations and evolving mandates • Onboard new trading partners and manage end‐to‐end testing … experience (must-have) • Experience working with EDI platforms and partner onboarding • Solid understanding of OAuth2, JWT, and API lifecycle management • Proficiency in SQL, XML, JSON, and scripting • Strong analytical and troubleshooting skills in integration environments • Familiarity with supply chain, logistics, O2C and P2P processes • Experience with ERP platforms such ...