Database Systems PhD - Expert in London, United Kingdom

About the job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey .

Position: Database Systems Evaluation Expert

Type: Contract

Compensation: $2200 per task

Location: Remote

Role Responsibilities

• Design challenging, self-contained database engineering tasks.
• Build checks for correctness, failure handling, concurrency, retries, and regressions.
• Evaluate performance measures such as latency, throughput, and memory use.
• Write clear grading criteria for engineering judgment.
• Collaborate with technical reviewers to refine and validate tasks.
• Work independently and asynchronously to meet deadlines.

Qualifications

Must-Have

• At least five years of hands-on database-engine internals experience or a database-systems PhD .
• Deep experience with storage engines, query execution, optimization, transactions, replication, or related low-latency systems.
• Strong implementation skills and clear explanations of correctness and performance tradeoffs.

Preferred

• Experience with Go .

Application Process (Takes 20–30 mins to complete)

• Complete a self-paced technical assessment with written responses and a coding exercise.
• Use a laptop or desktop with a camera, microphone, and entire-screen sharing.
• Have your own editor and terminal ready, along with Python 3.8+ and a compiler for C , C++ , Rust , Go , or Java .

Resources & Support

• For details about the interview process and platform information, please check:
• For any help or support, reach out to: [email protected]

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.