Senior Network Systems Engineer

Breakpoint Technologies is looking for a Senior Network Systems Engineer to design and implement a high-performance, privacy-focused networking system.

This role involves building secure tunneling, encryption, and routing components from the ground up — focusing on efficiency, stability, and portability across Linux and embedded environments.

Responsibilities

• Design and implement secure communication tunnels using modern cryptographic standards
• Develop network daemons and libraries in C, C++, Rust, or Go
• Work with TUN/TAP interfaces, netlink, and Linux networking subsystems
• Implement key exchange, encryption, and handshake logic (Noise framework, Curve25519, ChaCha20-Poly1305, etc.)
• Optimize UDP and TCP transport for low latency and reliability
• Build tools for connection management, peer discovery, and routing configuration
• Profile and optimize system performance for embedded and low-power hardware
• Maintain secure coding practices and conduct internal threat modeling for the network layer

Qualifications

• Strong background in systems-level programming (C/C++ required; Rust or Go is a plus)
• Deep understanding of TCP/IP, UDP, routing, NAT traversal, and packet filtering
• Practical experience with Linux networking stack, epoll/select, and virtual network interfaces
• Solid grasp of cryptography fundamentals and protocol security
• Experience building or contributing to networking software such as VPNs, proxies, or routers
• Proficiency with Linux build systems, cross-compiling, and debugging on embedded or ARM targets
• Familiarity with asynchronous networking and multi-threaded architectures

Bonus Skills

• Knowledge of kernel module development or custom protocol design
• Experience building distributed or peer-to-peer systems
• Familiarity with containerized networking (Docker, namespaces, bridge/tap setup)
• Interest in security research or network privacy tools