Azure Cosmos DB Developer & Admin

Job title: Azure Cosmos DB Developer & Admin Mode of work? 100% office Location: London, UK Duration of assignment: 6 months contract InsideIR35 The Role: The DB Admin and Developer will play a critical role in designing and developing scalable, secure, and high-performance applications tailored for banking and financial services. This role involves architecting cloud-native solutions using Azure Cosmos DB (SQL API and Mongo API), implementing effective partitioning strategies, indexing, and consistency models to support real-time financial data processing. The developer will build reusable libraries and frameworks using C#/.NET or Node.js and establish robust CI/CD pipelines through Azure DevOps to streamline delivery and reduce operational overhead. A key responsibility includes monitoring and optimizing Cosmos DB performance using Azure Monitor and Application Insights to ensure reliability and responsiveness of mission-critical systems. The role will collaborate closely with solution architects and DevOps teams to integrate Cosmos DB into microservices architectures, while ensuring strict compliance with industry security, governance, and data protection standards. This position directly contributes to the customer’s digital transformation journey by enabling agile, compliant, and resilient financial applications. Key responsibilities: Architect and develop cloud-native applications using Azure Cosmos DB (SQL API, Mongo API) Design and implement partitioning strategies, indexing, and consistency models Build reusable libraries and frameworks in C#/.NET or Node.js Develop and maintain CI/CD pipelines using Azure DevOps Monitor and optimise Cosmos DB performance using Azure Monitor and Application Insights Implement automated testing and unit test frameworks Collaborate with solution architects and DevOps teams to integrate Cosmos DB into microservices Ensure compliance with security, governance, and data protection standards Key skills/knowledge/experience: Experience with concurrency patterns, CLR, and scalable application design Deep understanding of Azure services including Azure Functions, App Services, AKS, and Logic Apps Hands-on experience with Azure Cosmos DB including query optimisation and throughput management Familiarity with distributed systems and NoSQL data modelling Experience with Git, version control, and continuous integration tools Having at least 10+yrs exp in Azure with 5+yrs experience working as Fabric and Pyspark Developer Experience in spark streaming and batch processing Experience in Fabric Spark jobs/Notebook Experience Delta table optimization, Eventstream / RTI / KQL (Nice to have) Desirable skills/knowledge/experience: Advanced proficiency in C#, ASP.NET, and .NET Core with strong object-oriented design principles