Cryptography Specialist for AI lab
Toptal · Remote (Worldwide) · Full-time
Description
Headquarters: Overview A fast-growing AI evaluation company is building expert-level benchmarks that test how well AI agents handle real professional work in the terminal. We are hiring cryptography experts to turn real, paid tasks from their own work into end-to-end challenges for AI agents, each with a working solution and a check that proves the result is correct. ***THIS IS A TASK BASED COMPENSATION MODEL. PLEASE CHECK THE APPLICATION QUESTIONS FOR MORE DETAILS.*** Responsibilities • Design expert-level Terminal-Bench cryptography tasks by turning real, paid work from your own experience into challenges that an AI agent must solve end to end. • Define the task environment, including files, systems, ciphertexts and data, so the challenge is realistic, self-contained and reproducible in a Linux command-line setup. • Write a working reference solution in Python or SageMath that proves the task is solvable, for example by recovering a key or decrypting a secret. • Build automated checks and tests that objectively verify the final result is correct, and explain how a mistake or a partial answer would be detected. • Calibrate task difficulty so a typical expert needs about 60-75 mi…
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Questions about this job
Where is this Cryptography Specialist for AI lab job located?
It is listed as Remote (Worldwide), so it can be done from home.
Who is hiring?
The employer shown on the listing is Toptal.
What is the salary?
The listing does not state a salary. Ask the employer about pay, overtime and payment dates before accepting.
Is it full-time or part-time?
The listing type is Full-time.
When was this job posted?
It was posted on 5 November 2026. Jobs that stay open too long are closed automatically, so apply soon if you are interested.
How do I apply?
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