2 months ago
Kaunas, LithuaniaSenior
Responsibilities
- Build firmware for Wi-Fi 6, Wi-Fi 6E, and Wi-Fi 7 access points and routers.
- Develop and maintain user-space services, libraries, management daemons, and integrations with hostapd and wpa_supplicant.
- Integrate third-party components and chipset SDKs into OpenWrt-based firmware and build systems.
- Maintain and improve firmware stability, performance, security, and maintainability.
- Collaborate with firmware, hardware, RF, and product teams on wireless networking products.
- Support hardware bring-up, calibration, validation, and issue investigation.
- Optimize roaming, mesh networking, airtime fairness, OFDMA, MU-MIMO, DFS, channel selection, and QoS/WMM.
- Diagnose laboratory and field issues using logs, packet captures, tracing, and on-device profiling.
Requirements
- At least 3 years of embedded firmware development experience using C or C++.
- Strong understanding of Linux internals, including processes, memory management, networking, netlink, and event-driven I/O.
- Solid networking fundamentals, including TCP/UDP, routing, firewalls, and traffic control.
- Experience with IEEE 802.11 standards and Wi-Fi security concepts, including WPA2/WPA3, EAP, and SAE.
- Experience with Git, cross-compilation, toolchains, and embedded build systems such as OpenWrt or Buildroot.
- Experience with AI tools such as Claude or Codex.
- Fluency in English and Lithuanian.
- Preferred experience includes Linux wireless or driver development, hostapd and wpa_supplicant customization, Qualcomm Atheros or MediaTek chipset SDKs, board bring-up, RF analysis, roaming optimization, wireless testing tools, Python or Bash scripting, and automated testing frameworks.
Benefits
- International work environment with global development teams.
- Opportunity to deliver software used by millions of people worldwide.
- Access to Ubiquiti products.
- Medical insurance.
- Hybrid work arrangement with an office in Kaunas.
- Flexible work hours.
- A-class office with snacks, drinks, free lunches, and free parking.
About Ubiquiti
Ubiquiti builds networking hardware and software platforms for businesses, internet service providers, and smart homes, sold under the UniFi, UISP, and AmpliFi brands. Its portfolio includes Wi‑Fi access points, switches, routers, wireless backhaul, security cameras, and management applications, sold primarily through channel partners and online. Founded in 2005 and headquartered in New York, the public company (NYSE: UI) has shipped over 100 million devices worldwide.