Senior VPN Engineer — Low-Latency, Scale & R&D Leader

Surfshark; Województwo mazowieckie; Hybrid; PLN 244,000 - 373,000; Full time

Benefits offered by this job

Growth opportunities

Health & wellness

Tools & equipment

Team events

Commuting support

Work-life balance

Surfshark accounts

Job summary

Surfshark's VPN Engineering team is building and scaling core software powering our global infrastructure. You will own key stack components and optimize high-performance tools like WireGuard and HAProxy, collaborating with SRE to keep thousands of servers fast and secure.

We seek engineers who can design, debug, and extend the Linux networking stack, write eBPF programs, and help lead long-term protocol enhancements. Remote-friendly with strong learning opportunities.

Qualifications

• Proven experience tracing complex production issues across code, OS, and service boundaries.
• Proven experience architecting solutions that hold up across thousands of servers.
• Programming skills in Go and/or C.
• Hands-on work with Ansible and scalable deployment architectures.

Responsibilities

• Design and scale our proprietary VPN software (SDN, Dausos, WCB) and extend tools like WireGuard and HAProxy.
• Dig into the Linux networking stack, debug it, and tune it for high-scale traffic while maintaining custom Debian images.
• Write eBPF programs for packet processing and architect systems for ultra-low latency and high throughput.
• Lead R&D on custom protocol extensions and optimizations, drive large-scale refactoring, and set coding standards.
• Work with SRE team to automate a global fleet through Ansible deployments and custom CI/CD pipelines.

Skills

Go

C

Linux networking

Debugging

Tools

Ansible

WireGuard

HAProxy

Job description

Surfshark's VPN Engineering team is building and scaling core software powering our global infrastructure. You will own key stack components and optimize high-performance tools like WireGuard and HAProxy, collaborating with SRE to keep thousands of servers fast and secure.

We seek engineers who can design, debug, and extend the Linux networking stack, write eBPF programs, and help lead long-term protocol enhancements. Remote-friendly with strong learning opportunities.