Data Engineer

Job Title: Cosmos DB Engineer

Location: Fully Remote

Hourly Rate: 200 PLN per hour (B2B Contract)

Contract Length: 6-12 Months

Cosmos DB Engineer - Role & Responsibilities

• Design and implement scalable, highly available Azure Cosmos DB solutions, including data models, partitioning, indexing and consistency strategies.
• Build and maintain data ingestion and integration pipelines using Azure Data Factory, Event Hubs, Functions and other Azure-native services.
• Monitor and optimise Cosmos DB performance and cost, including RU/s, query efficiency, indexing and partition distribution.
• Integrate Cosmos DB with cloud-native applications, APIs and microservices, working closely with product, architecture and DevOps teams.
• Automate Cosmos DB deployments and environments using Bicep, Terraform or ARM, incorporating testing and CI/CD practices.

Cosmos DB Engineer - Required Experience

• 3–6 years' experience in distributed NoSQL databases, including at least 2 years of hands-on Azure Cosmos DB (SQL API) experience.
• Strong knowledge of Cosmos DB architecture, including partitioning, indexing, consistency levels, global distribution and performance tuning.
• Experience with Azure Data Engineering, particularly Databricks, Data Factory, Event Hubs, Functions and related Azure services.
• Strong programming skills in Python, C#/.NET or JavaScript/Node.js, with experience developing data integrations or automation.
• Experience with Infrastructure as Code and CI/CD, using technologies such as Bicep, Terraform or ARM templates, alongside strong Agile/Scrum experience.

Interviews: September 2026

Start Date: October 2026