Senior Engineer II, Chromium

The role

You will design, build, and maintain Chromium-based browser components in C++. You will work on browser engine internals, systems architecture, and AI security to protect enterprise workforces and AI agents.

What you will do

• Design, build, and maintain Chromium-based browser components in C++.
• Architect and embed controls for detecting Prompt Injection and managing Shadow AI activity.
• Apply networking fundamentals and HTTP security expertise to harden browser isolation and infrastructure.
• Partner with MARS and AI teams to build and integrate AI agent capabilities and MCP servers.
• Use Python or Rust to build supporting tooling, detection microservices, and prototypes.
• Deploy and operate cloud infrastructure and orchestration for agent and threat-detection workloads.
• Debug and optimize performance-critical, high-scale systems.
• Collaborate cross-functionally with product, security, and AI engineering teams.
• Apply AI-assisted coding tools to development, testing, and code review.

Required qualifications

• 5+ years of experience in software engineering with strong C++ systems programming skills.
• Strong networking fundamentals, including solid knowledge of HTTP security, web protocols and / or client-side security architecture.
• Bachelor's degree or higher in Computer Science or a related field (or equivalent practical experience).

Nice to have

• Experience across Chromium layers such as content, browser, core, compositor, skia, and networking (or equivalent large-scale, high-performance C++ systems experience).
• Experience or strong interest in AI/LLM security / guardrails domains (e.g., Prompt Injection defense, Shadow AI detection, intent classification, context aware DLP/PII detection, and agentic workflow
• Python or Rust experience.
• Experience building or integrating AI agents, Chrome DevTools Protocol (CDP), and MCP (Model Context Protocol) servers.
• Experience with AWS, GCP, Terraform, Kubernetes, and Linux.

About the company

Menlo Security is the leader in Browser Security for human and agentic workforces. The Menlo Browser Security Platform protects organizations from cyberattacks by stopping threats across the web, documents, and email.