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Distributed Systems Performance Engineer
Flarion
This job is no longer accepting applications
See open jobs at Flarion.See open jobs similar to "Distributed Systems Performance Engineer" Sierra Ventures.
Tel Aviv-Yafo, Israel
Posted 6+ months ago
At Flarion, we’re building a new kind of big data accelerator targeting technologies like Apache Spark, Ray, and Hadoop. We combine low-level native implementations in Rust and C++ (leveraging Arrow, Polars, DataFusion) with intelligent query optimization that makes workloads run dramatically faster and cheaper.
We’re looking for a Principal Engineer to focus on performance optimizations for our in house distributed data systems. It’s a hands-on position where you’ll profile, debug, and tune complex systems for speed and efficiency.
What You’ll Do
- Profile and optimize distributed systems at scale (Spark, Ray, Hadoop, or similar).
- Dig into complex, multi-layer codebases and improve their runtime performance.
- Work with Arrow/Polars/DataFusion internals to shape efficient execution paths.
- Translate insights from profiling and benchmarks into production-ready improvements.
- Own projects end-to-end: identify bottlenecks, design solutions, test, and ship them.
Must-haves
- Proven track record of performance optimization in distributed systems or large-scale data platforms.
- Hands-on coding experience with performance-critical systems in Languages such as Scala, Python, Rust, or C++.
- Experience profiling, debugging, and tuning complex distributed codebases.
- Ownership mindset: ability to take projects from problem definition to production.
- Strong problem-solving skills and attention to detail.
Preferred
- MSc or PhD in Computer Science, Electrical Engineering, or related fields.
- Experience with Spark internals, Ray, Hadoop, or similar distributed compute frameworks.
- OSS contributions to distributed systems, query engines, or performance-critical libraries (e.g., Spark, Presto/Trino, Arrow, DataFusion, Polars).
- Familiarity with database internals, compilers, or query optimization is a plus, but not a core requirement.
- Experience building or tuning high-performance systems in production.
Experience
- 7+ years working in distributed systems, databases, or high-performance infrastructure.
- Hands-on experience reducing latency, improving throughput, or lowering resource consumption in real-world systems.
- Demonstrated ability to improve performance in multi-tenant, production-grade environments.
Values We Screen For
Excellence. Ownership. Collaboration. Self-Starter. Integrated Thinking. Ambition. Innovation.
Why Join
This role puts you at the heart of what makes Flarion different: making large-scale distributed systems run faster, leaner, and more reliable. You’ll work with low-level engines, contribute to open-source, and deliver optimizations that have immediate impact on some of the largest data workloads in the world.
This job is no longer accepting applications
See open jobs at Flarion.See open jobs similar to "Distributed Systems Performance Engineer" Sierra Ventures.