Senior Network Systems Engineer

2 days ago

Tel Aviv, Tel Aviv, Israel BreakPoint Technologies Full time

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

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