DB Internals & Query Execution Specialist (C++/Java)

About Us:

V4Scale is not just a company; it's an innovation powerhouse that enhances the R&D capabilities of prominent Israeli and US technology firms, with headquarters in Tel Aviv. We do this by harnessing the incredible talents of our diverse global remote workforce, and we welcome candidates from any location worldwide.

We are constantly growing and now looking for DB Internals & Query Execution Specialist (C++/Java) deep expertise in database engine internals, query planning, and execution architecture to join Mixed Remote Development Team collaborating with a top storage company based in Tel Aviv with investors such as Dell Capital and NVIDIA. The role involves developing (C++/Java) and optimizing core components of a SQL or analytical database engine with a strong focus on performance, concurrency, and resource efficiency

Requirements:

• Expertise in database core development, including storage engines, query planners, execution engines, and transaction processing.
• Strong understanding of storage engines: row vs column layouts, heap files, LSM trees, B-Trees
• Experience with index structures: B-trees, LSM indexes, hash and inverted indexes
• Knowledge of buffer pool and cache management mechanisms
• Solid grasp of transactions and concurrency: MVCC, locking, isolation levels
• Familiarity with durability and recovery: WAL, replication, crash recovery
• Understanding of low-level performance factors: memory layout, disk I/O, CPU cache behavior
• English, sufficient for interviews and participation in meetings (B2)

We offer:

• Remote work

• Registration assistance to Georgia/Spain (optional)

• Mixed international team, cutting-edge technologies, and flexible working hours.

• The project that you are not ashamed to write about in your CV

• Variety of bonuses

• Business trips to Israel (beach hotel, rented car)

• A friendly team with experienced mentors instead of bosses