{"id":55567,"url":"https://alion.io/job/ubiquiti-senior-security-engineer","title":"Senior Security Engineer","company":{"id":16273,"name":"Ubiquiti","domain":"ui.com","url":"https://alion.io/company/ubiquiti","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":95,"open_postings":153,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":133,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Security","role_family":"Security","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Taipei, Taiwan"],"countries":["TW"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":21000,"max_usd":49000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2094},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"DNS","optional":false},{"name":"libpcap","optional":false},{"name":"Linux","optional":false},{"name":"OpenSSL","optional":false},{"name":"Snort","optional":false},{"name":"Suricata","optional":false},{"name":"TCP/IP","optional":false},{"name":"C","optional":true}],"status":"live","first_seen_at":"2026-03-24T09:32:39Z","employer_posted_date":"2026-08-14","last_verified_at":"2026-10-17T18:37:07Z","board_verified":true,"closed_at":null,"days_open":207,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":206},"description":"About Ubiquiti\nAt 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 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.\nResponsibilities\nDesign, develop, and maintain network security features, including antivirus, SSL inspection, IDS/IPS, and content filtering in enterprise router firmware and software stacks.\n\nDevelop deep packet inspection (DPI) and signature-based detection engines for identifying malware, exploits, and malicious traffic patterns.\n\nIntegrate threat intelligence feeds and update mechanisms to ensure detection of evolving security threats.\n\nEnsure high-performance packet processing and minimal latency for real-time threat detection.\n\nCollaborate with product managers and system architects to define the security roadmap and feature priorities.\n\nWork with QA and DevOps teams to design test cases, validation frameworks, and automated regression testing for security features.\n\nConduct vulnerability analysis, performance benchmarking, and optimization for security modules.\n\nStay current with network security standards, protocols, and emerging threats.\n\nRequirement\n5+ years of experience in embedded or network security software development.\n\nUnderstanding or hands-on experience with:\nSSL/TLS inspection and secure proxy implementations\n\nIDS/IPS, DPI, and packet inspection engines\n\nContent filtering via DNS restriction\n\nAntivirus and sandboxing\n\nProficiency in C/C++, with strong knowledge of Linux networking stack and kernel modules.\n\nFamiliarity with security frameworks and libraries (e.g., Suricata, Snort, ClamAV, OpenSSL, libpcap).\n\nSolid understanding of networking fundamentals (TCP/IP, NAT, routing, QoS).\n\nExcellent debugging, profiling, and performance tuning skills.\n\nStrong documentation and communication abilities.\n\nPreferred Qualifications\nExperience developing for enterprise or ISP-grade routers and gateways.\n\nFamiliarity with UniFi 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