Senior Staff Software Engineer, Query Runtime & Performance

Dremio; United States; Remote; USD 180,000 - 260,000; Full time

Job summary

Dremio seeks a Senior Staff Software Engineer to advance its runtime and query execution components on the cloud data platform. You will design and implement operators, optimize memory usage, and shape runtime planning for scalable analytics at scale.

You will collaborate with cross-functional teams to improve JVM performance, profiling, and overall system reliability, while applying AI-assisted tools to coding, debugging, and documentation.

Qualifications

• 5+ years developing production software, preferably in database systems, query execution, distributed systems, or related areas.
• Strong Java skills; experience with C++ is a plus.
• Foundation in data structures, algorithms, concurrency, multithreaded programming, and asynchronous programming.
• Understanding of database internals, query processing, distributed execution, and performance optimization.
• Experience profiling performance is a plus.

Responsibilities

• Build the execution engine: Design, implement, test, and support query operators, expression evaluation, execution scheduling, runtime planning, and resource management.
• Improve runtime performance: Optimize vectorized processing, concurrency, parallelism, memory usage, data exchange, and disk spilling.
• Diagnose difficult problems: Investigate query correctness and performance issues using query profiles, profiling tools, telemetry, benchmarks, logs, and production data.
• Optimize Java and the JVM: Improve CPU utilization, allocation behavior, garbage collection, thread behavior, and other runtime characteristics.
• Collaborate across the query engine: Work with Query Planner, Datalake, Product, Support, and field engineering teams on end-to-end query improvements.
• Use AI-assisted development tools: Apply AI tools to code comprehension, debugging, test generation, documentation, and incident analysis.
• Apply engineering judgment: Validate AI-generated code and recommendations through review, testing, benchmarking, and engineering judgment.
• Raise the engineering bar: Participate in design and code reviews, contribute to technical direction, and mentor other engineers.

Skills

5+ years experience

Java

C++

Data structures

Algorithms

Concurrency

Multithreading

Asynchronous programming

Database internals

Query processing

Distributed execution

Performance optimization

Profiling

Tools

Java Virtual Machine

Job description

Dremio seeks a Senior Staff Software Engineer to advance its runtime and query execution components on the cloud data platform. You will design and implement operators, optimize memory usage, and shape runtime planning for scalable analytics at scale.

You will collaborate with cross-functional teams to improve JVM performance, profiling, and overall system reliability, while applying AI-assisted tools to coding, debugging, and documentation.