Network Engineer (Anti-Censorship)-Remote

Overview We are building a resilient network stack to ensure our users can reliably access our services in regions with heavy censorship (e.g., China, India). You will design, deploy, and maintain obfuscation layers (Shadowsocks, obfs4proxy, Cloudflare Tunnel) and implement strategies such as traffic masking, IP rotation, and automated failover to keep our infrastructure accessible.

Responsibilities

Design, deploy, and maintain proxy / obfuscation stacks (Shadowsocks, obfs4proxy, Cloudflare Tunnel, etc.)

Monitor and mitigate censorship-related disruptions (DPI, DNS poisoning, TCP reset injection, etc.)

Develop a strategy for traffic masking and IP hopping with Chocolate protocols

Collaborate with the backend team to ensure seamless application connectivity under censorship pressure

Research and adopt new circumvention techniques (TLS camo, domain fronting, randomized transports)

Implement observability and logging for health checks, traffic anomalies, and tunnel stability

Requirements Must-Have Qualifications

Strong Linux system administration and networking fundamentals

Familiarity with proxy and tunneling technologies (Shadowsocks, V2Ray, obfs4proxy, WireGuard, etc.)

Practical knowledge of censorship mechanisms (deep packet inspection, IP / port blocking, DNS manipulation)

Solid scripting skills (Bash, Python, or similar)

Nice-to-Have Qualifications

Knowledge of TLS fingerprinting evasion (uTLS, camouflage transports)

Experience with Cloudflare Spectrum / Tunnel / Magic Transit or similar services

Awareness of BGP security, RPKI, and route hijack prevention

Security background in encrypted communications and adversarial networks

Some Go or Rust experience (to tweak or build transport proxies if needed)

Hands-on experience with containerization (Docker, ECS, or Kubernetes) and CI / CD automation (GitHub Actions, Terraform, Ansible, etc.)

Benefits

Work on cutting-edge infrastructure to fight censorship and ensure open access

Freedom to research, test, and implement creative networking solutions

Remote-friendly team with flexible working hours

Opportunity to make a real-world impact on internet freedom

Seniority level

Associate

Employment type

Full-time

Job function

Information Technology

Industries

IT Services and IT Consulting

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