Expert Data Processing Engineer

4 weeks ago


London, Greater London, United Kingdom Xonai Full time
About Xonai
We are a team of passionate engineers dedicated to developing innovative data infrastructure optimization solutions. Our platform combines hardware acceleration with performance metering to provide real-time actionable insights, enabling organizations to reduce data center costs.

Role Overview
This position involves collaborating with the founding team to enhance the integration of our custom compiler with query processing internals and maximize data processing throughput in leading open-source software for Big Data analytics. As a Senior Software Engineer, you will directly impact data processing infrastructure, transforming tens of petabytes every day where Xonai is deployed.

Key Responsibilities
  1. Implement extensible optimizations for data processing algorithms mainly in Java and C++.
  2. Develop code generation for individual SQL operations targeting a custom DSL.
  3. Establish rigorous benchmarking standards to assess the impact of performance-sensitive changes.
  4. Prioritize implementation of requirements benefiting customer applications.
  5. Drive greenfield development on data processing at the intersection of Big Data and compilers.

Requirements
  1. 5+ years of experience in performance engineering and managing large codebases.
  2. Strong expertise in statically-typed compiled languages (C++, Java, Scala).
  3. Experience with low-level Java interfacing C++ for performance-critical code.
  4. Knowledge of low-level libraries, CPU performance (x86), compression engines, and memory allocators.
  5. Solid grasp of computer science fundamentals, including algorithms and data structures.
  6. Critical thinking and ability to work independently without direct supervision.
  7. Experience with the internals of large-scale data processing and query performance optimization.

Benefits
This is a fully remote role, offering flexibility and opportunities for growth within a dynamic team.
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