{"id":3900499,"url":"https://alion.io/job/fortinet-software-development-engineer-3","title":"Software Development Engineer","company":{"id":52696,"name":"Fortinet","domain":"fortinet.com","url":"https://alion.io/company/fortinet-blog","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"A","score":85,"open_postings":181,"ghost_share":0,"stale_share":0.796,"repost_share":0,"time_to_fill_p50_days":3,"computed_at":"2026-11-08T05:47:12Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Sunnyvale, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":123000,"max":151000,"currency":"USD","period":"year","gross":null,"usd_annual":151000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"DHCP","optional":false},{"name":"DNS","optional":false},{"name":"Git","optional":false},{"name":"Linux","optional":false},{"name":"TCP/IP","optional":false},{"name":"Tcpdump","optional":false},{"name":"Unix","optional":false},{"name":"VLAN","optional":false},{"name":"VPN","optional":false},{"name":"Wireshark","optional":false},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-11-06T21:38:50Z","employer_posted_date":"2026-11-06","last_verified_at":"2026-11-08T14:31:52Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Job Responsibilities:\nDesign, develop, and maintain networking software for current and future network and security products.\nImplement and enhance network protocols and features, including routing, switching, network services, and secure connectivity.\nInvestigate and resolve network connectivity, interoperability, performance, and stability issues.\nAnalyze packet flows and optimize network processing for reliability and efficiency.\nCollaborate with hardware, firmware, and QA teams to integrate features and validate functionality across different network environments.\nParticipate in software design, code reviews, testing, and technical documentation.\nSupport troubleshooting and resolution of customer-reported network issues.\nDeliver high-quality software on schedule and communicate effectively, both verbally and in writing.\nJob Requirements:\nMinimum of 3 years of experience in networking-related software development.\nStrong C/C++ programming experience in a Unix/Linux environment is essential.\nSolid understanding of TCP/IP networking, Ethernet, IPv4/IPv6, switching, and routing.\nHands-on experience implementing or maintaining network protocols and features, such as VLAN, DHCP, DNS, NAT, multicast, routing protocols, or VPN.\nStrong understanding of packet forwarding, routing tables, network interfaces, and protocol state machines.\nExperience with Linux network programming, including sockets, inter-process communication, and event-driven or multithreaded applications.\nStrong troubleshooting skills using packet captures, protocol analysis, system logs, and debugging tools such as Wireshark, tcpdump, and GDB.\nFamiliarity with network configuration and testing in environments involving routers, switches, firewalls, and end devices.\nKnowledge of secure coding practices, software testing, and network protocol interoperability testing.\nExperience with Git, code reviews, and maintaining production software.\nKnowledge of network security technologies, including IPsec, TLS, authentication, and access control, is a plus.\nExperience with Linux kernel networking, network drivers, hardware acceleration, or embedded networking platforms is a plus.\nKnowledge of Shell or Python scripting for network testing and automation is a plus.\nEducational Requirements:\nB.S. in Computer Science, Computer Engineering, or Electrical Engineering, or equivalent practical experience; M.S. preferred.\nThe US base salary range for this full-time position is $123,000-$151,000. Fortinet offers employees a variety of benefits, including medical, dental, vision, life and disability insurance, 401(k), 11 paid holidays, vacation time, and sick time, as well as a comprehensive leave program.\nWage ranges are based on various factors, including the labour market, job type, and job level. Exact salary offers will be determined by factors such as the candidate's subject knowledge, skill level, qualifications, experience, and geographic location.\nAll roles are eligible to participate in the Fortinet equity program. Bonus eligibility is reviewed at the time of hire and annually at the Company’s discretion.\nWhy Join Us:\nWe encourage candidates from all backgrounds and identities to apply. We offer a supportive work environment and a competitive Total Rewards package to support you with your overall health and financial well-being.\nEmbark on a challenging, enjoyable, and rewarding career journey with Fortinet. 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