Senior Software Engineer (Chromium)

Menlo Security is the leader in Browser Security for human and agentic workforces. Our mission is to enable humans and agents to connect communicate and collaborate securely without compromise. The Menlo Browser Security Platform protects organizations from cyberattacks by stopping threats across the web documents and email before they reach the user. With Menlo Agent Runtime Security (MARS) that protection now extends to the AI agents working alongside every employee. Menlo Security is trusted by major global businesses including Fortune 500 companies and government agencies to protect their most valuable asset their data and is backed by top-tier investors.

Menlo Security is looking for a Senior Software Engineer to join our Chromium engineering team in support of MARS Menlos internal AI initiative. Youll bring strong C skills ideally with hands-on Chromium experience across layers such as content browser core compositor skia and networking to build and harden the browser capabilities that make Menlos AI-driven features possible. The role blends deep systems and networking engineering with hands-on work on AI agents and MCP (Model Context Protocol) servers alongside the cloud infrastructure (AWS GCP Kubernetes Terraform Linux) that supports them. Youll work alongside engineers across Chromium AI and security disciplines to ship reliable high-performance capabilities using AI-assisted development tools yourself to move faster without cutting corners on quality.

Key Outcome(s) Owned:

• Ship reliable high-performance Chromium-based capabilities that power Menlos internal AI/agent initiatives (MARS) while maintaining the security and performance bar expected of Menlos browser platform.
  

Success Metrics / KPIs:

• Feature delivery velocity against MARS roadmap milestones.

• Performance and stability of shipped Chromium-based components (e.g. crash rate latency).

• Reduction in manual toil via agent/MCP-based tooling adopted internally.

• Code review turnaround time and quality for C contributions.

• Successful integration of AI agents or MCP servers into internal workflows or product surfaces.
  

• Design build and maintain Chromium-based browser components in C working across layers such as content browser core compositor skia and networking that power Menlos security and AI-driven capabilities.

• Apply strong networking fundamentals and HTTP security expertise to harden Menlos browser isolation and network-facing infrastructure.

• Partner with the MARS team to build and integrate AI agent capabilities and MCP (Model Context Protocol) servers into Menlos platform.

• Use Python or Rust to build supporting tooling services and prototypes alongside core C work.

• Deploy and operate the cloud infrastructure (AWS GCP) and orchestration (Kubernetes Terraform) needed to run agent/MCP workloads reliably.

• Debug and optimize performance-critical high-scale systems across the browser and supporting infrastructure.

• Collaborate cross-functionally with product security and AI engineering teams to ship capabilities end-to-end.

• Apply AI-assisted coding tools to accelerate development testing and code review as part of your daily workflow.
  

Required:

• Strong C engineering skills

• Strong networking fundamentals including solid knowledge of HTTP security.

• Bachelors degree or higher in Computer Science or a related field.

Preferred / 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).

• Python or Rust experience.

• Experience building or integrating AI agents and MCP (Model Context Protocol) servers.

• Experience with AWS GCP Terraform Kubernetes and Linux.

• Experience with Tornado HAProxy and AWS EC2.

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Why Menlo

At Menlo we dont settle for the status quo in our technology or our culture. How we think and act is just as important as what we build. Our culture is defined by five core mindsets: Proactive Leadership Straight Talk United Impact Elevated Talent and Customer-Compelled. We take ownership and drive outcomes without waiting to be told. We communicate directly and seek hard truths. We break down silos and win together. We hold a high bar for ourselves and the people around us. And we treat every customer interaction as mission-critical. If youre someone who sees it owns it solves it and does it youll thrive here.

All qualified applicants will receive consideration for employment without regard to race sex color religion sexual orientation gender identity national origin protected veteran status or on the basis of disability.

TO ALL AGENCIES: Please no phone calls or emails to any employee of Menlo Security outside of the Talent organization. Menlo Securitys policy is to only accept resumes from agencies via Ashby (ATS). Agencies must have a valid services agreement executed and must have been assigned by the Talent team to a specific requisition. Any resume submitted outside of this process will be deemed the sole property of Menlo the event a candidate submitted outside of this policy is hired no fee or payment will be paid.

Required Experience:

Senior IC