Senior C++ Developer

About the Position

We are looking for a Senior C++ Developer to join our team.

This role is well-suited for someone who enjoys tackling intricate security challenges within large-scale, open-source infrastructure projects. You will work at the intersection of systems programming and security engineering, contributing directly to widely-used networking technology.

Responsibilities

• Remediate security vulnerabilities in the open-source Envoy Proxy codebase (C++) sourced from a Google-triaged Buganizer backlog
• Submit patches to Envoy's private security repository (envoy-setec) for review by Envoy maintainers
• Back-port approved fixes to supported Envoy release branches
• Integrate approved fixes into Google3 following the designated patching process, including Google FTE review, without the use of AI tooling on Google3
• Guard all behavior-affecting fixes behind Envoy runtime flags to minimize risk
• Escalate complex or ambiguous cases to Google technical leads for guidance

Requirements

• A minimum of 3 years of relevant experience
• Strong production-level C++ development skills
• Experience with network programming in C++, including sockets, TCP/UDP, TLS termination, and HTTP protocol handling such as parsing, framing, and connection lifecycle management
• Experience building asynchronous, event-driven server architectures, including epoll/libevent-style event loops and non-blocking I/O
• Proven ability to analyze and fix security vulnerabilities
• Experience using LLM/AI-agent-assisted tools to generate vulnerability fixes
• Experience with GitHub, including pull requests, upstream open-source contributions, and code review
• Strong written and spoken proficiency in English at a B2 level or higher

Nice to Have

• Familiarity with Envoy internals or proxy/networking code, including HTTP/1.1, HTTP/2, HTTP/3, and TLS
• Experience working within large monorepo codebases

About the Company

EPAM Systems is a global software engineering and product development company that partners with many of the world's leading businesses to deliver high-quality software solutions.