Senior Security Engineer

2 weeks ago

Taipei Taipei City, Taiwan Ubiquiti Inc. Full time

About Ubiquiti
At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to the next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT.

At Ubiquiti, you'll heighten your potential and broaden your horizons, all while shaping the future of connectivity.

Role Summary

We are looking for a Senior Security Engineer to design and implement advanced network security features on our UniFi gateway routers. You will be responsible for developing high-performance, scalable, and reliable systems that protect users from emerging threats while maintaining Ubiquiti's trademark ease of use.

Responsibilities (What He/she Will Do After Joining UI)

  • Design, develop, and maintain network security features, including antivirus, SSL inspection, IDS/IPS, and content filtering in enterprise router firmware and software stacks.
  • Develop deep packet inspection (DPI) and signature-based detection engines for identifying malware, exploits, and malicious traffic patterns.
  • Integrate threat intelligence feeds and update mechanisms to ensure detection of evolving security threats.
  • Ensure high-performance packet processing and minimal latency for real-time threat detection.
  • Collaborate with product managers and system architects to define the security roadmap and feature priorities.
  • Work with QA and DevOps teams to design test cases, validation frameworks, and automated regression testing for security features.
  • Conduct vulnerability analysis, performance benchmarking, and optimization for security modules.
  • Stay current with network security standards, protocols, and emerging threats.

Requirement

  • 5+ years of experience in embedded or network security software development.

  • Understanding or hands-on experience with:

  • SSL/TLS inspection and secure proxy implementations

  • IDS/IPS, DPI, and packet inspection engines
  • Content filtering via DNS restriction

  • Antivirus and sandboxing

  • Proficiency in C/C++, with strong knowledge of Linux networking stack and kernel modules.

  • Familiarity with security frameworks and libraries (e.g., Suricata, Snort, ClamAV, OpenSSL, libpcap).
  • Solid understanding of networking fundamentals (TCP/IP, NAT, routing, QoS).
  • Excellent debugging, profiling, and performance tuning skills.
  • Strong documentation and communication abilities.

Preferred Qualifications

  • Experience developing for enterprise or ISP-grade routers and gateways.
  • Familiarity with UniFi platforms

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