Senior Software Engineer — Lakehouse Systems

About the Role

Granica is hiring a Senior Software Engineer to build foundational lakehouse systems for AI.

You will work on the core infrastructure behind Crunch, Granica’s continuous optimization product for enterprise lakehouse data. This includes systems for metadata management, transaction semantics, table maintenance, object-store-backed storage layouts, file optimization, and lakehouse cost/performance across petabyte- and exabyte-scale environments.

You will own core systems that directly affect customer infrastructure cost, query performance, table reliability, and the operational health of large lakehouse environments.

This is a hands-on systems role for engineers who have gone deep on lakehouse internals, table formats, metadata systems, storage layout, or distributed storage infrastructure.

What You’ll Do

Build metadata, transaction, and table-maintenance systems for large-scale lakehouse datasets

Work with Iceberg, Delta Lake, Hudi, manifests, snapshots, transaction logs, schema evolution, and garbage collection

Optimize compaction, clustering, file sizing, data skipping, pruning, and physical data layout

Improve performance and cost efficiency across Parquet/ORC and object stores such as S3, GCS, and ADLS

Debug and optimize bottlenecks across metadata, storage, table maintenance, object-store access, and query execution

What We’re Looking For

Deep engineering experience in distributed systems, storage systems, databases, or data infrastructure

Production experience building, extending, or deeply optimizing lakehouse or table-format systems such as Iceberg, Delta Lake, Hudi, or similar technologies

Strong understanding of metadata architectures, transaction semantics, snapshots, manifests, schema evolution, and physical data layout

Hands-on experience with table maintenance, compaction, clustering, file sizing, Parquet/ORC, and cloud object stores such as S3, GCS, or ADLS

Strong programming skills in Java, Scala, Go, Rust, C++, or a similar systems-oriented language, with a pragmatic end-to-end builder mindset

Bonus

Contributions to Iceberg, Delta Lake, Hudi, Parquet, ORC, Spark, Trino, Flink, Velox, DuckDB, DataFusion, or related systems

Experience with small-file optimization, metadata scaling, delete handling, catalog consistency, indexing, caching, compression, or storage-engine internals

Research or open-source contributions in distributed systems, databases, storage, compression, or data processing

Why Join Granica

Build foundational infrastructure for enterprise data and AI

Work on deep systems problems across lakehouse metadata, table formats, storage layout, and object-store behavior

Own meaningful parts of the architecture in a small, high-caliber engineering team

Work directly with Product, Engineering, and company leadership

Have direct impact on customer performance, infrastructure cost, product direction, and company growth

Compensation & Benefits

Competitive salary, meaningful equity, and performance bonus for top performers

401(k) with company match, comprehensive health coverage, and unlimited PTO

Daily catered meals in our Mountain View office

Support for research, publication, and conference participation

At Granica, you'll help build the next generation of enterprise AI—from exabyte-scale data infrastructure, Large Tabular Models (LTMs), and stateful AI agents. Together, we're creating the infrastructure that enables enterprises to own their data, own the intelligence built on it, and scale both efficiently.