Senior Open Source Engineer

Company: LanceDB
Location: San Francisco
Posted on: April 2, 2026

Job Description:

About LanceDB LanceDB is a developer-friendly, open-source database for multimodal AI. From hyper-scalable vector search to advanced retrieval for RAG, from streaming training data to interactive exploration of large-scale AI datasets, LanceDB is the best foundation for your AI application, and powers some of the most groundbreaking applications and challenging requirements today. About the Role We’re looking for a Senior Open Source Engineer to help expand the reach of Lance and LanceDB within the broader data infrastructure ecosystem. You’ll work at the intersection of high-performance computing, big data, and open-source systems—driving integrations, improving distributed operations, and contributing to projects across the Apache and AI communities. You’ll be responsible for Driving open-source community efforts to integrate the Lance format with Spark, Hive Metastore, Presto, Trino, Ray, and other data infrastructure systems Designing and maintaining efficient distributed Lance dataset operations Building efficient indices to enable predicate pushdown and accelerate queries in Spark, Ray, or Trino Working on table formats, data encodings, and various aspects of the Lance format in Rust Operating and improving internal data processing infrastructure Promoting the Lance format in open-source communities and at Big Data conferences Requirements 10 years of experience building high-performance databases, big data systems, or large-scale data services Deep understanding of internals of open-source Big Data or AI training systems (e.g., Hadoop, Spark, Flink, Ray, Iceberg, Delta Lake, Hudi, ClickHouse, Trino, Presto, PyTorch, or JAX) Strong experience with high-performance computing in Java or Scala Experience with Rust (or willingness to learn it) Proven ability to move fast, work independently, and collaborate with a high-caliber team Nice to Have Contributor, committer, or PMC member in Apache or other large open-source projects Experience with Java, Rust, C++, Apache Arrow, DataFusion, Parquet, Iceberg, or Delta Lake Track record of driving large features or integrations in distributed systems Strong community presence and passion for open-source collaboration What We Offer A key role shaping an open-source project with real production usage Remote-first team with flexible hours Competitive compensation, equity, and benefits Generous learning budget and support for open-source contributions Why Join Us You’ll join a world-class team of open-source builders (co-authors of pandas, and contributors to HDFS, Arrow, Iceberg, and HBase) working on cutting-edge AI infrastructure. You’ll collaborate on systems that power next-generation AI workloads while shaping how LanceDB operates and scales production environments.

Keywords: LanceDB, Sunnyvale , Senior Open Source Engineer, IT / Software / Systems , San Francisco, California