Requirements:

• Hands-on 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)

Requirements:

• Experience in Python Automation Testing for at least 5 years.
• Deep understanding of servers, storage, and networking (the prior system administration experience is big plus).
• Knowledge of File Systems (NAS) / Block-level Storage - an advantage.
• Knowledge of Storage Network protocols (NFS/SMB/S3) - an advantage.
• Knowledge and skills Active Directory and LDAP - an advantage.
• English, sufficient for read/write level and meetings participation only (В1).

Requirements:

• At least 8 years of experience in developing test automation and frameworks using Python.
• Proven experience with QA processes and methodologies.
• Hands-on experience with Selenium and other Web UI automation tools.
• Knowledge of Rest API / CLI-testing.
• Background as System Administrator / System Engineer / Infrastructure Engineer — strong advantage
• English, sufficient for read/write level and meetings participation (В1)