● Lead the development, testing, and maintenance of the query optimizer for e6data's data lake query engine.

● Implement advanced optimization techniques, such as cost-based optimization and rule-

based optimization, to enhance engine performance.

● Design and build sophisticated capabilities in the optimizer, including the Learning

Optimizer, which intelligently detects and generates essential statistics. Leverage past query executions to improve cardinality estimates.

● Fine-tune the optimizer to handle complex queries, such as those involving intricate joins, subqueries, or large datasets, ensuring the engine can support diverse customer workloads efficiently.

● Integrate AI-driven optimization techniques to significantly enhance the efficiency of SQL query execution.

● Mentor junior engineers and contribute to the overall architectural decisions of the engine team.

Requirements

● Deep Understanding of Database Internals: Requires profound knowledge of how the query optimizer works, including an understanding of various access paths, join algorithms, and join ordering algorithms.





● Theoretical Understanding: A sound theoretical understanding of relational algebra and query rewrites.

● Problem-Solving Abilities: Exceptional ability to troubleshoot and optimize SQL execution plans, particularly in identifying and resolving performance bottlenecks.

● Programming Experience: Proficiency in Java, with extensive experience in building and optimizing large-scale distributed systems.

● Experience with Advanced Frameworks: Experience with Apache Calcite or similar query optimization frameworks; familiarity with AI and machine learning models,

especially in the context of database systems.

Perks

Why Join Us?:

● Be part of a team that is pushing the boundaries of what’s possible in analytics.

● Lead initiatives that deliver tangible value and impact a wide array of industries.

● Enjoy a dynamic and innovative work environment where your contributions are recognized and valued.

📌 Senior Software Engineer - Planner (Bengaluru)
🏢 e6data
📍 Bengaluru