
Senior Software Engineer, Risk
Replit is hiring a Senior Software Engineer for the Risk team to design and operate AI-powered abuse detection and automated response systems (phishing, cryptomining, account takeover, fraud) and build LLM guardrails. The role requires 4+ years in security engineering/anti-abuse, strong Python/TypeScript skills, experience with SQL and large-scale data analysis (e.g. BigQuery), and familiarity with ML/LLM classifiers and LLM-specific attack vectors. This is a full-time, primarily on-site role in Foster City, CA (in-office Monday, Wednesday, Friday).













