{"id":197956,"url":"https://alion.io/job/ubiquiti-embedded-linux-firmware-engineer","title":"Embedded Firmware Engineer (Linux)","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":155,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":137,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Hardware","role_family":"Hardware","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":["Kaunas, Lithuania"],"countries":["LT"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":3000,"max":7000,"currency":"EUR","period":"month","gross":true,"usd_annual":94344},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Bash","optional":false},{"name":"C++","optional":false},{"name":"Claude","optional":false},{"name":"DHCP","optional":false},{"name":"DNS","optional":false},{"name":"Git","optional":false},{"name":"Linux","optional":false},{"name":"CI/CD","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-09-03T11:01:42Z","employer_posted_date":"2026-09-08","last_verified_at":"2026-10-28T19:25:40Z","board_verified":true,"closed_at":null,"days_open":55,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":54},"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:\nDevelop Linux user-space firmware for Ubiquiti networking products;\nCollaborate with global firmware, hardware, cloud, and product teams throughout the product lifecycle;\nDesign, implement, and maintain system services, management daemons, libraries, and product business logic;\nDevelop network-facing applications using sockets, IPC mechanisms, netlink, and event-driven I/O;\nIntegrate open-source packages and third-party components into our OpenWrt-based firmware and build systems;\nMaintain and improve existing firmware, focusing on stability, performance, security, and resource efficiency;\nDevelop interfaces between low-level platform components, device-management services, and higher-level product features;\nDiagnose complex laboratory and field issues using logs, packet captures, tracing, core dumps, and profiling tools.\nRequirements:\n3+ years of embedded Linux software development experience using C or C++;\nStrong understanding of Linux internals, including processes, threads, memory management, filesystems, signals, and service lifecycle;\nExperience with Linux networking, sockets, IPC, netlink, epoll, and asynchronous application design;\nSolid networking fundamentals, including Ethernet, TCP/UDP, IPv4/IPv6, routing, bridging, firewalls, and DNS/DHCP.;\nExperience with Git, Bash, cross-compilation, toolchains, and embedded build systems such as OpenWrt or Buildroot.\nExperience with AI tools - Claude, Codex, etc.\nFluent in English and Lithuanian.\nNice to have:\nHands-on experience with OpenWrt components such as procd, ubus, UCI, rpcd, or netifd;\nExperience designing APIs, configuration systems, state machines, or management services for embedded products;\nKnowledge of Linux security, process isolation, secure update mechanisms, and application hardening;\nExperience with system performance analysis, memory-leak detection, crash analysis, and resource optimization;\nFamiliarity with BSPs, bootloaders, Linux device drivers, or hardware bring-up;\nPython or Bash scripting experience and familiarity with automated testing and CI/CD systems;\nExperience maintaining or contributing to open-source software.\nBenefits: \nInternational work environment and work with global development teams;\nAbility to deliver software that is used by millions of people across the globe;\nOpportunity to leverage and integrate modern AI tools into product development;\nAccess to all Ubiquiti products;\nMedical insurance;\nHybrid approach - 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