Senior C/C++ Database Engine Engineer (PostgreSQL Internals)

We are looking for a Senior C/C++ Engineer with hands-on experience in database engine internals development to join a long-term R&D initiative focused on evolving and upgrading a PostgreSQL-based analytical platform.

The system is a PostgreSQL fork built on MPP architecture. The primary objective is upgrading the core database engine to newer upstream PostgreSQL versions while preserving compatibility, performance, and distributed functionality.

This is a low-level systems engineering role, focused on the core database engine.

Responsibilities

• Develop and maintain core database engine components in C/C++
• Contribute to PostgreSQL internals and engine-level functionality
• Participate in upgrading and adapting a PostgreSQL fork to newer versions
• Work on low-level components such as storage, WAL, memory management, and core engine functionality
• Contribute to replication and distributed database functionality
• Debug, profile, and optimize performance-critical parts of the system
• Collaborate closely with query processing and distributed systems engineers
• Contribute to architectural decisions at the database engine level

Required Experience

• Strong professional experience in C and/or C++ in production environments
• Proven hands-on experience developing or modifying database engine internals (not just using databases)

Deep understanding of database internals such as:

• Storage engine
• WAL (Write-Ahead Logging)
• MVCC
• Memory management
• Concurrency and transaction handling
• Experience working with large and complex C/C++ codebases
• Solid systems programming background (performance tuning, concurrency, memory management)
• Experience with distributed databases, replication, or high-availability systems
• Ability to work independently and take ownership of complex engineering tasks

Strong Plus

• Contributions to PostgreSQL core or other database engines.
• Experience working on internals of systems such as: PostgreSQL, Greenplum, ClickHouse, Oracle, Snowflake, Databricks, MySQL Heatwave.
• Experience maintaining or upgrading database forks.
• Linux systems programming experience.

What Success Looks Like

• You will be successful in this role if you have previously worked on:
• A PostgreSQL fork, extension, or core contribution
• A database engine or storage layer
• Low-level systems involving concurrency, memory management, and performance optimization.

What We Offer

• Fully remote work.

• A professional, supportive, and friendly team.

• Long-term employment with competitive compensation, based on experience.

• Continuous knowledge sharing with engaged co-workers.