Senior ML Engineer - Malware Detection (remote work)
Core
Build production ML models and LLM-assisted triage systems to detect web malware (PHP, JS, phishing) at fleet scale, optimizing for low false-positive rates and inference cost.
Role type
Senior IC machine-learning engineer (security/malware)
Builds
Real-time malware detection signatures, classifiers, and automated cleanup pipelines for Imunify360
Domain
Cybersecurity / Web Malware / Linux Infrastructure
Deliverable
production ML models
Required skills
Transformer model training and fine-tuning, classic ML (gradient boosting, calibration), inference cost engineering, Python, PyTorch, SQL, AI coding agents
Preferred skills
Web malware/shells experience, code LLMs (AST/token features), Go or Rust, MLflow/W&B
Technologies
PyTorch, Hugging Face, ClickHouse, ONNX, llama.cpp, vLLM, GitLab, Jenkins, Redash, Jira, Slite, Claude, Codex
Responsibilities
Train models on production data to improve detection rates, generate detection signatures automatically, route files to appropriate detection engines, evaluate models against false-positive budgets, manage GPU training infrastructure
Seniority
Senior, hands-on IC
