· Database engine internals (storage): indexing, access methods, locking, logging, caching, transaction processing, replication, backup restore, buffer management
· Database engine internals (query processing): query compilation, optimization, execution, parallel execution
· Distributed systems: consensus-based quorum replication, NoSQL system implementation
· Candidates with strong backgrounds in file and storage systems, compilers, operating systems, networking, etc.are also encouraged to apply.
· OS internals.
· Low level performance and tuning.