Database Developer

4 weeks ago

Ahmedabad, India Ellkay Software Full time

We are looking for an experienced and performance-driven Database Developer with deep expertise in query tuning and database optimization. You will be responsible for enhancing database performance, analyzing slow-running queries, and ensuring that our data infrastructure supports high-throughput, low-latency operations across applications and analytical workloads.

Key Responsibilities:

  • Analyze, tune, and optimize complex SQL queries for performance and efficiency.
  • Identify and resolve performance bottlenecks related to indexing, execution plans, and data access paths.
  • Design and implement indexing strategies to improve read/write performance.
  • Monitor database performance using profiling tools and proactively address issues.
  • Work closely with application developers to ensure efficient query design and proper database access patterns.
  • Refactor poorly performing queries, views, stored procedures, and functions.
  • Conduct load testing and simulate stress scenarios to test database performance under pressure.
  • Maintain database statistics and ensure they are updated for optimal query planning.
  • Collaborate with infrastructure teams to configure hardware, caching, and storage for performance.
  • Write documentation on performance best practices, query standards, and optimization techniques.

Required Qualifications:

  • Bachelors degree in computer science, Information Systems, or a related field.
  • Proven experience in SQL performance tuning and optimization (e.g., T-SQL, PL/SQL, PostgreSQL, MySQL).
  • Strong understanding of query execution plans, indexing, partitioning, and caching strategies.
  • Hands-on experience with profiling and performance monitoring tools (e.g., SQL Profiler, EXPLAIN plans).
  • Deep knowledge of database internals, memory usage, and storage architecture.
  • Experience with large-scale datasets and high-concurrency environments.
  • Excellent problem-solving and analytical skills with attention to detail.

Preferred Qualifications:

  • Experience with in-memory databases or columnar storage engines.
  • Familiarity with database optimization in cloud environments (AWS RDS, Azure SQL, GCP).
  • Certification in performance tuning or database administration is a plus.

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