Senior Engineer II, Proxy

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Senior Engineer II, Proxy in Canada new

Menlo Security
Full time
Email

Canada
10/30/2026
Report

Remote

Responsibilities

Own proxy-service features across design, implementation, review, deployment, and production operation.
Extend ingress-proxy security controls to support traffic from AI agents as well as human users.
Optimize latency and throughput in highly concurrent networked applications using profiling and efficient asynchronous programming.
Modernize legacy systems through staged traffic migrations while they remain in production.
Apply threat modeling, vulnerability mitigation, data-integrity practices, fuzzing, property-based testing, and integration testing.
Make and communicate architectural decisions, collaborate across teams, and share secure software-development practices.
Use LLMs selectively to improve productivity while evaluating their outputs for correctness, maintainability, and architectural fit.

Requirements

At least 5 years of experience building and operating production systems.
Hands-on experience building and maintaining production systems in Rust or Go; Rust or Go experience is strongly preferred.
Working knowledge of HTTP and TLS.
Experience optimizing latency and throughput in networked applications.
Experience building and operating asynchronous, high-concurrency services, including understanding backpressure, cancellation, and non-blocking I/O failure modes.
Experience modernizing legacy systems through safe, staged production migrations.
Experience with comprehensive testing strategies, including fuzzing, property-based testing, and integration tests.
Ability to articulate architectural decisions, collaborate effectively, and apply secure software-development practices.
Proficiency using LLMs thoughtfully and critically in engineering workflows.

Benefits

Small team with autonomy and little process overhead.
End-to-end ownership of services and features from design through production.
Menlo Security culture centered on Proactive Leadership, Straight Talk, United Impact, Elevated Talent, and Customer-Compelled decision-making.

Menlo Security

Menlo Security secures enterprise browsers. Menlo Browser Security manages browsers, protects your users, and secures application access and enterprise data, providing a complete enterprise browser solution from any browser. Menlo Security secures browsers while preserving user choice and providi...

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