IPsec/Linux Network Engineer

3 weeks ago

Gurugram, India AVIVYS Full time

Job Description
We are seeking a skilled IPsec/Linux Network Engineer with strong expertise in secure networking protocols and Linux-based development. The ideal candidate will be responsible for implementing, optimizing, and troubleshooting IPsec-based VPN and high-performance networking solutions, including hardware offloading and cryptographic Responsibilities :

  • Design, develop, and optimize IPsec solutions on Linux platforms.
  • Implement and troubleshoot IPsec architecture :
  • ESP/AH protocols
  • Tunnel vs. Transport modes
  • IKEv1/IKEv2 key exchange mechanisms
  • Authentication methods (Certificates, PSK, EAP)
  • PKI and certificate management
  • TLS/DTLS for secure communication
  • Work with IPsec stacks such as strongSwan, libreswan, and Linux ip xfrm.
  • Collaborate on Linux networking and Netfilter/iptables/nftables development.
  • Integrate DPDK cryptodev or cryptodev-linux libraries for cryptographic acceleration.
  • Offload IPsec encryption/decryption to hardware crypto accelerators for high-performance IPsec data planes.
  • Debug, profile, and resolve performance and security issues in networking Skills & Experience :
  • Strong understanding of IPsec protocols and architecture (ESP, AH, IKEv1, IKEv2, PKI, TLS/DTLS).
  • Hands-on experience with IPsec stacks (strongSwan, libreswan, ip xfrm).
  • Good knowledge of Linux networking internals, Netfilter, and routing concepts.
  • Working knowledge of DPDK cryptodev or cryptodev-linux libraries.
  • Experience in IPsec encryption/decryption offloading using hardware crypto accelerators.
  • Solid programming/debugging background with C/C++ in Linux environments to Have :
  • Kernel-level networking or driver development experience.
  • Familiarity with SD-WAN solutions and VPN configuration.
  • Knowledge of security compliance standards (FIPS, Common :
  • Bachelors or Masters degree in Computer Science, Electronics, or related field.

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