
1 - 1 employees
🤖 Artificial Intelligence
🏥 Healthcare
💸 Finance
Artificial Intelligence • Healthcare • Finance
Aptura is a company that builds domain-tailored training and evaluation infrastructure to make AI reliable in regulated industries. They provide curated, high-quality datasets (medical imaging, financial models, legal contracts), reinforcement-learning environments with verifiable rewards, and a network of domain experts (physicians, attorneys, investment analysts) who annotate, review, and shape tasks. Aptura focuses on training and evaluating agentic AI on real-world tasks in healthcare, finance, and legal workflows, offering data licensing support, custom tooling, and metric-driven evaluation for deployment in regulated settings.
🔥 16 hours ago
🇺🇸 United States – Remote
⏳ Contract/Temporary
🟡 Mid-level
🟠 Senior
🤖 Artificial Intelligence
👻 Ghost score 12%
Improve your chances of getting an interview by checking your resume score before you apply.

1 - 1 employees
🤖 Artificial Intelligence
🏥 Healthcare
💸 Finance
Artificial Intelligence • Healthcare • Finance
Aptura is a company that builds domain-tailored training and evaluation infrastructure to make AI reliable in regulated industries. They provide curated, high-quality datasets (medical imaging, financial models, legal contracts), reinforcement-learning environments with verifiable rewards, and a network of domain experts (physicians, attorneys, investment analysts) who annotate, review, and shape tasks. Aptura focuses on training and evaluating agentic AI on real-world tasks in healthcare, finance, and legal workflows, offering data licensing support, custom tooling, and metric-driven evaluation for deployment in regulated settings.
• Carry out structural annotation on de-identified chest CT scans • Mark points, boxes and measurements on findings already flagged upstream • Place click-points at specified scan coordinates • Draw bounding boxes around defined regions of interest • Record diameters or distances between marked points on existing segmentations or polygons • Apply annotation guidelines consistently across a large volume of studies • Flag ambiguous cases with a short rationale • Work asynchronously on a dedicated annotation platform • Support development of clinical AI imaging models • Perform structural markup only; no diagnostic interpretation, malignancy assessment or clinical decision-making
• Registered radiologist in your country of practice with active license • 3–10 years' experience in radiology, with a chest/thoracic focus • Strong grounding in thoracic anatomy and cross-sectional CT • Proven accuracy and consistency in image review or measurement work • Comfortable using structured annotation tools and digital platforms • Prior imaging annotation experience is an advantage but not required • Native or near-native written English • Right to work in your country of residence • Work as an independent contractor • Required application information includes an NPI Number and speciality • Availability to contribute time weekly
• Flexible Work Arrangements: Part-time, remote and fully asynchronous • Competitive Compensation: Hourly rate, paid weekly • Professional Development: Hands-on experience in clinical AI development and medical imaging
Apply Now🕒 Yesterday
51 - 200
AI safety red team experts probing Mercor-partnered frontier AI models for vulnerabilities. Generating reproducible attack data that improves model safety and reliability.
🇺🇸 United States – Remote
💵 $17 - $25 / hour
🔥 Funding within the last year
💰 $350M Series C - Mercor on 2025-10
⏳ Contract/Temporary
🟡 Mid-level
🟠 Senior
🤖 Artificial Intelligence
🗣️🇲🇾 Malay Required
🕒 Yesterday
51 - 200
AI Safety Red Teamer stress-testing frontier AI models for Mercor. Designing adversarial prompts and documenting vulnerabilities across high-risk domains.
🇺🇸 United States – Remote
💵 $70 - $84 / hour
🔥 Funding within the last year
💰 $350M Series C - Mercor on 2025-10
⏳ Contract/Temporary
🟡 Mid-level
🟠 Senior
🤖 Artificial Intelligence
🕒 Yesterday
51 - 200
AI Safety Red Teamer stress-testing frontier AI models for Mercor, which partners with AI labs to train and enhance AI systems. Identifying vulnerabilities across high-risk domains.
🇺🇸 United States – Remote
💵 $70 - $84 / hour
🔥 Funding within the last year
💰 $350M Series C - Mercor on 2025-10
⏳ Contract/Temporary
🟡 Mid-level
🟠 Senior
🤖 Artificial Intelligence
🕒 Yesterday
51 - 200
AI Safety Red Teamer stress-testing frontier AI models for Mercor, which partners with AI labs to train and enhance systems. Identifying jailbreaks, hallucinations, and safety failures.
🇺🇸 United States – Remote
💵 $70 - $84 / hour
🔥 Funding within the last year
💰 $350M Series C - Mercor on 2025-10
⏳ Contract/Temporary
🟡 Mid-level
🟠 Senior
🤖 Artificial Intelligence
🕒 Yesterday
51 - 200
AI red-teaming experts probing conversational models for Mercor, which partners with AI labs to train frontier systems. Generating reproducible vulnerability data and attack cases.
🇺🇸 United States – Remote
💵 $17 - $25 / hour
🔥 Funding within the last year
💰 $350M Series C - Mercor on 2025-10
⏳ Contract/Temporary
🟡 Mid-level
🟠 Senior
🤖 Artificial Intelligence
🗣️🇻🇳 Vietnamese Required