15 of 15 JSON Jobs in the City of London

such as HTML, CSS and JavaScript. • Hands‐on experience with tools such as Selenium, Playwright or similar automation frameworks. • Solid understanding of API testing, JSON/XML formats and tools such as Postman or Swagger. • Familiarity with CI/CD pipelines and version control. • Comfortable working in data‐rich environments ...

product stakeholders. Contribute to continuous improvement of engineering practices and platform capabilities. Required Technical Expertise Strong hands-on development experience with: Java Python Node.js JSON Experience designing and building APIs and microservices architectures . Experience working within cloud environments , particularly: Google Cloud Platform (GCP) Strong understanding of containerised environments , including ...

cross‐service design decisions Strong understanding of security, authentication flows, and data protection in distributed systems API & Data Design and governance of RESTful APIs, JSON, and HTTP standards API versioning and backward‐compatibility strategies MongoDB/NoSQL expertise, including: Data modeling Indexing strategies Performance optimization Advanced experience with Java concurrency ...

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 ...

Azure DevOps or similar). Understanding of relational and non-relational data storage technologies. Experience working with structured messaging and data formats such as JSON, XML, and Avro. Awareness of modern security principles including token-based authentication, encryption in transit, and API security standards. Role Responsibilities Contribute to the evolution ...

Bloomberg, MarkitWire). Strong understanding of multi-system message flows and ability to automate integrations involving outbound/inbound messages (EG: via XML, JSON). Strong SQL/reporting skills and familiarity with API driven automation. Experience with BDD or structured scenarios writing practices is required Ability to conduct root ...

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. ...

tools such as Apache Spark or in this instance LakeFS, for data processing and management. Useful - R, Apache Spark Very useful - Python, SQL, JSON, LakeFS. ...

working in cloud environments such as AWS or Azure is expected, with Databricks considered a nice to have. Required Skills: Java background Node JS Json RDS React Data Modelling Python/Spark Cloud experience (AWS/Azure) o AWS Glue o Databricks Testing e.g. PyTest Data Quality e.g. Great Expectations ...

Solid practical experience with Kubernetes Experience across a broad range of GCP services Source control using Git/GitHub Comfortable working with and processing JSON and YAML Strong understanding of cloud security principles and best practices GCP Associate Cloud Engineer certification (or equivalent practical experience) Desirable Skills Programming experience ...

reporting Build event-driven workflows across email, Teams, APIs, and databases Architect Agent Systems Modular task decomposition Guardrails and validation layers Structured output validation (JSON schemas, rule checks) Logging, observability, fallback logic, and confidence scoring Secure credential and secrets management Governance & Scale Ensure explainability and traceability Design compliant automation aligned ...

React/Redux) Required Skills Solid understanding of API design principles (auth, scalability, security) Ability to work with diverse data formats such as CSVs, JSON, lists, etc. Experience writing complex database queries Prior work alongside data engineering teams or with platforms like Databricks, Kinesis, or large-scale ETL pipelines Experience ...

Data, ETL & System Integration Support system testing, data loads, reporting validation and end-to-end integration testing. Strong understanding of ETL, data modelling, IDocs, JSON/XML schemas, and event-driven architecture. What You Bring 5-10+ years in integration architecture and enterprise integration patterns. 3-5+ years ...

depending on experience) We are seeking a Data Analyst with a strong focus on system integrations , specialising in APIs, REST, JSON, and Azure technologies . This is a hands-on role within a professional services environment, working closely with Architecture and Engineering teams to enable seamless data exchange across platforms. … Power BI, Fabric, Azure technologies). Writing clear documentation for integrations and data structures. Must-Have Experience Strong hands‐on experience with APIs, REST, JSON . Experience with Azure and Microsoft data tools. Good SQL skills; some Python or R is a bonus. Familiarity with Swagger/OpenAPI or Postman ...

hold active SC Clearance. Main Responsibilities: Design, develop, and maintain applications using C# and the .NET framework (.NET 6+) Build and consume XML and JSON-based APIs to support system integration Work closely with stakeholders to support requirements gathering and technical analysis Write and maintain unit tests using MSTest … .NET 6 or above) Hands-on experience with ASP.NET for building web or service-based applications Experience developing and consuming RESTful APIs (XML/JSON) Experience working within Financial Services/Banking Exposure to Findur or Endur would be highly desirable Got your attention? If you believe that you have ...