# Data Engineer - EMEA/US Shift - Company: [Bluematrix]() - Location: Hyderabad - Team: Engineering / Technology - Employment type: Full-time - Salary: ₹1350K – ₹3000K - Posted: January 5, 2026 ## Job description Responsibilities •  Analyze and optimize slow or inefficient SQL and NoSQL queries across legacy systems. • Profile and tune MySQL and Cassandra clusters for high throughput and low latency. • Work closely with application teams to modernize schema designs and improve access patterns. • Design database optimization strategies aligned with microservices, distributed systems, and cloud-native architectures. • Collaborate with architects and DevOps engineers to support database migration plans to AWS. • Implement observability and metrics around database performance, availability, and errors. • Contribute to defining the modernization roadmap, including the potential use of cloud-native databases or managed services. • Ensure security and data governance compliance with PCI DSS and ISO 27001 standards. Qualifications • 5+ years of hands-on experience as a Database Engineer, DBA, or Performance Engineer. • Strong experience with MySQL and Cassandra in high-traffic or distributed environments. • Expertise in query profiling, execution plans, and indexing strategies. • Strong understanding of database internals, clustering, and replication. • Comfortable working in Linux environments, with experience troubleshooting at the OS and DB level. • Familiarity with cloud migration strategies and AWS RDS / Aurora / DynamoDB / OpenSearch is a plus. • Experience working with large legacy databases and designing incremental modernization plans. • Knowledge of data security, masking, encryption, and compliance best practices. ## Apply [Apply on Bluematrix]() Canonical job page: