2 months ago
Kaunas, LithuaniaMid Level
Responsibilities
- Develop embedded Linux firmware for managed Ethernet switches and related networking products.
- Collaborate with firmware, hardware, and product teams through product design, board bring-up, development, and release.
- Develop and maintain Linux user-space services, management daemons, platform libraries, and hardware abstraction components.
- Implement and maintain Layer 2 and Layer 3 switching functionality, including VLANs, STP/RSTP/MSTP, LACP, LLDP, multicast, and routing.
- Integrate switching silicon SDKs, platform components, and third-party open-source software into firmware.
- Improve switching performance, reliability, startup time, resource usage, and system observability.
- Support board bring-up, BSP integration, hardware validation, and low-level issue investigation.
- Diagnose control-plane and data-plane issues using logs, packet captures, hardware counters, tracing, and profiling tools.
Requirements
- At least 3 years of embedded software development experience using C or C++.
- Strong understanding of Linux internals, including processes, memory management, networking, netlink, and event-driven I/O.
- Strong knowledge of Ethernet switching and networking fundamentals, including Layer 2, Layer 3, VLANs, bridging, multicast, and routing.
- Experience developing Linux-based firmware, platform services, system daemons, or networking applications.
- Experience with Git, Bash, cross-compilation, toolchains, and embedded build systems such as OpenWrt, Buildroot, or Linux From Scratch.
- Experience with AI tools such as Claude or Codex.
- Fluency in English and Lithuanian.
- Preferred experience with FRRouting or Quagga, data-plane processing, hardware offloading, packet pipelines, and performance optimization.
- Preferred experience with Broadcom SDKs, Intel/Barefoot Tofino, P4, or comparable switching silicon and frameworks.
- Experience with data-center, enterprise, or carrier-grade Ethernet switches is preferred.
- Experience with BSP development, Linux device drivers, bootloaders, or hardware abstraction layers is preferred.
- Ability to contribute to system and software architecture across multiple product areas is preferred.
Benefits
- International work environment and collaboration with global development teams.
- Opportunity to deliver software used by millions of people worldwide.
- Opportunity to leverage and integrate modern AI tools into product development.
- 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, free parking, and other amenities.
- Gross monthly compensation of €3,000 to €7,000 depending on qualifications and background.
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.