# Security, Machine Learning at ThreatMark

- Company: ThreatMark
- Status: Open
- Workplace: Remote
- Location: See post
- Level: Mid-level
- Discipline: AI & ML
- Employment: Full-time
- Posted: 2026-11-03
- Apply: https://news.ycombinator.com/item?id=50353951

## Description

ThreatMark | Security, Machine Learning | REMOTE(World) / Brno, Czech Republic | Equity ThreatMark protects >60M end users from finacial fraud and saves > $1.2M every day in losses. We are working with banks in EU and US to protect their end users. We develop large-behavioral models that recognizes returning users by their mouse movements, keystroke timings and sensoric data (accelerometer, gyroscope). We detect cyberthreats (e.g. malware, phishing, scraping) by exploiting browsers/sandboxes of devices. We manage ~PB scale of data and provide realtime scoring in milliseconds driving authentication/authorization flow (2nd factor). Stack: [python, typescript, rust], [redis, postgresql], [aws, terraform] ... We are looking for exceptional engineers to build with us and be part of the success: - Backend Engineer [rust, python] - low-latency stream processing engine, rewrite python microservices to rust, build new detection features - DevOps Engineer (IaaC in AWS) - DevSecOps Engineer - AI Tech Lead (loops & graphs guru, real ML background) - Security Researcher/Engineer - Product Manager [USA] - Fraud Detection Specialist - Partner Manager If you are interested, please email us @ career@threatmark.com with subject "HN Who's Hiring" If you don't find the right role here or at https://www.threatmark.com/careers/ , write us anyway if you believe you can be good fit :) Krystof Hilar, Co-Founder & CTO

More ThreatMark roles: https://deviantjobs.com/companies/threatmark