Senior II Firmware Engineer

Job description

Softeq is looking for a Senior Firmware Engineer in the Embedded Systems department.

We're building new silicon based product: the Nordic nRF7120 (Wi-Fi 6 + Bluetooth LE + companion cellular) running Zephyr via the nRF Connect SDK and looking for the primary Zephyr voice on the team.

This position will require firmware architecting and in collaboration with multi-disciplinary team design and development a single shared business-logic core, serves both, the incumbent STM32 platform and the new Nordic platform for years to come.

Responsibilities:

Own firmware on the nRF7120 / Zephyr NCS platform: DK bring-up, Kconfig + device tree structure, thread topology, little fs storage, MCU boot/DFU; Build native Zephyr connectivity: Wi-Fi, Bluetooth host, and cellular via the Zephyr modem subsystem; Own firmware observability with Memfault: coredumps, metrics, OTA campaigns, alerting — a first-class quality-and-velocity investment for the whole team; Set the bar for firmware quality: host-build CI as a compile firewall, unit-testable C with injectable fakes, replay-harness behavior-preservation; Collaborate with hardware, software, QA, and system engineering teams.

Requirements

8+ years hands-on embedded firmware, including 3+ years shipping production Zephyr / nRF Connect SDK code on real hardware; nRF7120 (rare) or adjacent nRF52/nRF53/nRF91 experience; Production fluency in Kconfig and device tree; Zephyr Bluetooth host with real GATT-service porting, native Zephyr Wi-Fi, cellular over the modem subsystem; Nordic Semiconductor MCU and hardware peripherals experience (e.g. PWM, ADC, DAC, CAN, UART, etc.); West, deep C99/C11, CMake, git; Production Memfault experience; Experience with firmware-level power optimization techniques; You use AI-assisted coding tools (Claude Code, Cursor, Copilot) in daily work; Experience with firmware-level power optimization techniques; Consumer IoT consumer-connected-hardware device firmware background (wearables, trackers, connected devices); Real overlap with CET/EET business hours; a long-term (2+ year) commitment; English language written and verbal communication skills (min. B2 level); Bachelor’s degree in Computer Science, Electrical Engineering or related field.

Company offers

Work life balance

Flexible work hours Extra paid vacation

Health

Health insurance

Office

Shower Free Gym

Transport

Free parking

Salary

6000-6500 €/mon. gross

Work place

Vito Gerulaičio g. 10-101, Vilnius Calculate your travel time to work

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