{"id":130941,"url":"https://alion.io/job/shield-ai-senior-software-engineer-networking-os-r5488","title":"Software Engineer, Networking & OS (R5488)","company":{"id":50,"name":"Shield AI","domain":"shield.ai","url":"https://alion.io/company/shield-ai","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":75,"open_postings":62,"ghost_share":0,"stale_share":0.806,"repost_share":0,"time_to_fill_p50_days":76,"computed_at":"2026-10-20T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Dallas, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":120000,"max":190000,"currency":"USD","period":"year","gross":null,"usd_annual":190000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"Tcpdump","optional":false},{"name":"VLAN","optional":false},{"name":"VPN","optional":false},{"name":"Wireshark","optional":false},{"name":"PKI","optional":true}],"status":"live","first_seen_at":"2026-08-04T05:09:10Z","employer_posted_date":"2026-08-04","last_verified_at":"2026-10-20T11:11:52Z","board_verified":true,"closed_at":null,"days_open":77,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":76},"description":"Job Description:\nAs a Software Engineer (Networking & OS) on V-BAT, you will be instrumental in designing, implementing, and optimizing the network infrastructure for ourUnmanned Aerial System (UAS) which is deployed in some of the most challenging environments worldwide. V-BAT is designed to operate in contested, GNSS-denied airspace, and our network must maintain highly reliable, secure, and efficient communication between all air and ground devices.\nWhat you'll do:\nDesign and build custom, resilient Layer 2 / Layer 3 network topologies optimized specifically for V-BAT mission profiles, focusing on device isolation, dynamic traffic management, and transmitting traffic across multiple links.\n\nImplement networking features directly on embedded Linux operating systems, including custom routing, TUN/TAP interfaces, user-space tunnels, and socket-level applications.\n\nWork backward from operator capabilities to build bandwidth-optimized, low-latency communication paths over lossy or constrained radio and satellite links.\n\nWrite clean, production-grade C, C++, or Python code to build things like software-defined network interfaces, traffic shaping policies, and link failover mechanisms.\n\nPartner with software engineers, hardware engineers, and field operators to validate end-to-end network performance in both hardware-in-the-loop (HIL) labs and flight test environments.\n\nRequired qualifications:\nBachelor’s degree with 5+ years of relevant experience, or Master’s with 4+ years, or PhD with 2+ years.\n\nStrong proficiency writing software in C, C++, or Python in a Linux environment, with a track record of shipping software that interacts directly with the OS networking stack.\n\nDeep understanding of Linux networking fundamentals (netlink, IP route/tables, iptables/nftables, TUN/TAP interfaces, Linux network namespaces, and socket programming).\n\nSolid grasp of Layer 2 and Layer 3 network fundamentals, custom routing protocols, VLAN tagging, QoS/traffic management, and VPN/tunneling mechanisms (e.g., OpenVPN, GRE, IPsec, or custom user-space tunnels).\n\nPractical experience troubleshooting network degradation using low-level tools (e.g., tcpdump, wireshark, iproute2, iperf) in lossy, high-latency, or bandwidth-constrained environments.\n\nProven track record of successfully shipping products, showcasing the ability to navigate through development cycles, overcome obstacles, and deliver high-quality solutions to meet project deadlines and exceed expectations in a fast-paced environment.\n\nAbility to obtain security clearance.\nPreferred qualifications:\nExperience developing embedded Linux networking applications using build systems like Yocto or OS-level customization tools.\n\nExperience working with RF and other hardware engineers to design network protocols and topologies which are tailored for a novel radio network design.\n\nExperience architecting network solutions for robotics, autonomous vehicles, aerospace, or edge computing hardware.\n\nFamiliarity with network security, public key infrastructure (PKI), and cryptographic tunnels in embedded 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