Security Engineer (Cryptanalysis / Reverse Engineering)

OpenTrain AI, Inc.; United States; Remote; USD 158,000 - 214,000; Part time

Job summary

OpenTrain AI, Inc. is seeking a Security Engineer to evaluate AI-generated solutions to cryptanalysis and reverse engineering problems. This remote contract role pays $135 per hour and requires 20+ hours per week, offering flexible, asynchronous work.

The candidate will design security problem sets, craft reference solutions, and provide structured feedback to improve AI systems. Strong writing and security expertise are essential for success.

Qualifications

• Hands-on cryptanalysis or reverse engineering exposure in security.
• 6–10 years of relevant security experience.
• Bachelor’s degree required; master's preferred.
• Strong written communication for technical feedback.
• Experience with security publications, OSS, peer review, or CTFs is helpful.

Responsibilities

• Design technical problem sets focused on cryptanalysis and reverse engineering.
• Write expert reference solutions and rubrics based on security best practices.
• Rate AI-generated outputs for correctness, depth, and sound technical judgment.
• Provide structured feedback and clear explanations to support model improvement.

Skills

Cryptanalysis

Reverse engineering

Security evaluation

Technical writing

Education

Bachelor's degree

Master's degree preferred

Job description

Security Engineer (Cryptanalysis / Reverse Engineering)

Work as a Security Engineer evaluating AI-generated solutions to difficult cryptanalysis and reverse engineering problems. The remote contract pays $135 per hour and requires 20 or more hours each week.

Remote Hourly · $135/hr

$135/hr

Compensation

Contract, part-time

Engagement

Remote

Location

Posted

Open in 95 countries

Portugal + more

• Albania
• Algeria
• Antigua and Barbuda
• Armenia
• Australia
• Austria
• Bahamas
• Bahrain
• Belgium
• Benin
• Bhutan
• Bosnia and Herzegovina
• Botswana
• Brunei
• Bulgaria
• Canada
• Costa Rica
• Côte d’Ivoire
• Croatia
• Cyprus
• Czechia
• Denmark
• Ecuador
• El Salvador
• Estonia
• Ethiopia
• Finland
• France
• Gambia
• Germany
• Greece
• Guatemala
• Guyana
• Hong Kong
• Hungary
• Iceland
• India
• Indonesia
• Ireland
• Israel
• Italy
• Jamaica
• Jordan
• Kenya
• Kuwait
• Latvia
• Liechtenstein
• Lithuania
• Luxembourg
• Madagascar
• Malaysia
• Malta
• Mauritius
• Mexico
• Moldova
• Mongolia
• Morocco
• Mozambique
• Namibia
• Netherlands
• New Zealand
• North Macedonia
• Norway
• Oman
• Pakistan
• Panama
• Peru
• Philippines
• Poland
• Portugal
• Qatar
• Romania
• Rwanda
• Saint Lucia
• Senegal
• Serbia
• Singapore
• Slovakia
• Slovenia
• South Africa
• Spain
• Sri Lanka
• Sweden
• Switzerland
• Taiwan
• Tanzania
• Thailand
• Trinidad and Tobago
• Tunisia
• Türkiye
• United Arab Emirates
• United Kingdom
• United States
• Uzbekistan
• Vietnam

The work

This role focuses on evaluating how AI models handle expert-level security problems. It is research and assessment work, not production engineering.

You will create realistic security scenarios, write reference solutions and grading rubrics, assess AI-generated answers, and explain your feedback clearly.

• Design technical problem sets focused on cryptanalysis and reverse engineering.
• Write expert reference solutions and rubrics based on security best practices.
• Rate AI-generated outputs for correctness, depth, and sound technical judgment.
• Provide structured feedback and clear explanations to support model improvement.

What it pays and takes

This is a remote, part-time contractor role for experienced security professionals. You should be able to work independently and asynchronously.

• Pay: $135 per hour.
• Time: 20 or more hours per week.
• Work setup: Fully remote and asynchronous.
• Location: Open to candidates in the countries listed for this role.
• Experience: Currently or recently active in security, with hands‑on cryptanalysis or reverse engineering experience.
• Professional background: 6 to 10 years of relevant experience.
• Education: A bachelor's degree in a related field is required; a master's degree is strongly preferred.
• Communication: Strong written skills for technical explanations and structured feedback.
• Helpful experience: Security research publications, open-source contributions, recognized security work, peer review, code review, grading, editing, reverse engineering, cryptanalysis, or CTFs.

About AI training work

AI training work uses human judgment to help improve artificial intelligence systems. OpenTrain is a platform where people find these projects, build a profile, and apply to work that matches their skills.

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Remote · United Arab Emirates, Antigua and Barbuda, Albania +92 more