Senior Staff Software Engineer – Query Execution

🕒 vor 19 Tagen

🇵🇹 Portugal – Remote

⏰ Vollzeit

🟠 Senior

🧑‍💻 Full-Stack-Entwickler

👻 Geisterscore 11%

infoinfo

🗣️🇺🇸🇬🇧 Englisch erforderlich

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Logo of Dremio

Dremio

201 - 500 Mitarbeiter

Gegründet 2015

📚 Bildung

🤝 B2B

☁️ SaaS

Education • B2B • SaaS

Dremio ist ein innovatives Unternehmen, das über die Dremio University Lernressourcen und Zertifizierungen anbietet und Kurse sowie Badges in den Bereichen Datenanalyse und Produktentwicklung bereitstellt. Ziel ist es, Fachkräfte im Tech- und Datenbereich zu befähigen, indem spezialisierte Trainings für Rollen wie Data Analyst und Data Engineer angeboten werden – und so ihre Fähigkeiten und Karrierechancen zu erweitern.

Beschreibung

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

🎯 Anforderungen

• 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 • Strong foundation in data structures, algorithms, concurrency, multithreaded programming, and asynchronous programming • Understanding of database internals, query processing, distributed execution, and performance optimization • Experience profiling and optimizing CPU, memory, garbage collection, thread behavior, or other runtime characteristics • Ability to solve ambiguous technical problems and work effectively across team boundaries • Ability to evaluate tradeoffs, validate solutions rigorously, and make sound decisions when working with unfamiliar or AI-assisted implementations • Strong communication skills, a sense of ownership, and a commitment to delivering high-quality software • Bonus: experience with distributed query engines, database engines, or large-scale data processing systems • Bonus: experience with vectorized execution, query operators, expression evaluation, code generation, or runtime optimization • Bonus: experience with JVM profiling, memory management, caching, networking, data exchange, execution scheduling, or disk spilling • Bonus: experience with Apache Arrow, Apache Iceberg, Parquet, Avro, Spark, Hadoop, or cloud object stores • Bonus: contributing to open-source projects

🏖️ Vorteile

• Equal opportunity employer supporting workforce diversity • Necessary accommodations for individuals with disabilities within the application and interview process

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