Senior Embedded Developer

ABOUT THE PROJECT

We are looking for talented developers to create a reference design for a cutting-edge wireless communication platform. Our project aims to develop a qualification-ready software stack for a new microcontroller series, targeting IoT, smart metering, and logistics markets. You’ll work with a flagship microcontroller, radio module, and FreeRTOS, focusing on implementing sub-GHz FSK and LoRa protocols within a modern low-power wide-area network ecosystem. This is a unique opportunity to contribute to innovative IoT solutions and work with leading wireless communication technologies.

OUR ROLE

• Port and integrate a wireless communication SDK to a new Cortex-M33 based microcontroller platform, focusing on proprietary long-range (LoRa/FSK) links;
• Develop low-level drivers and platform abstraction layers for radio peripherals and system components in a FreeRTOS environment;
• Implement direct radio control logic, including modulation, timing-critical operations, and RF state machine handling;
• Contribute to the bring-up of a new embedded platform, with attention to power domains, clock systems, and peripheral initialization;
• Support low-power operation, including standby/deep sleep transitions, wake-up sources, and peripheral reinitialization;
• Write reliable, maintainable embedded C code targeting memory- and power-constrained systems;
• Debug and validate link-layer behavior and RF stack integration in coordination with hardware and RF teams;
• Collaborate closely with system architects to define clean and portable HAL/driver interfaces;
• Document design decisions and integration patterns to support future reuse and scalability;
• Participate in code and architecture reviews with a focus on performance, modularity, and testability;
• Assist with configuration of embedded build systems, startup code, and linker memory layout.

REQUIREMENTS

• 5+ years of experience in embedded software development using C;
• Strong understanding of Cortex-M architecture (preferably M33), NVIC, clock/power control, and interrupt handling;
• Practical experience with FreeRTOS and real-time embedded development principles;
• Hands-on experience developing or porting RF drivers (e.g., for LoRa, FSK, sub-GHz radios), not limited to using prebuilt stacks;
• Familiarity with direct radio control including transmission timing, modulation configuration, and hardware tuning;
• Experience debugging hardware/firmware issues with oscilloscopes, logic analyzers, and RF instruments;
• Comfortable with embedded toolchains, CMake or Make-based build systems, and linker script editing;
• Knowledge of power management in embedded systems, including peripheral gating, low-power modes, and sleep/wakeup logic;
• Solid written and verbal communication skills in English (B2 level or higher).

NICE TO HAVE

• Prior experience porting communication stacks or SDKs to new hardware targets;
• Familiarity with LoRa and FSK modulation protocols, PHY tuning, and RF timing constraints;
• Exposure to proprietary LPWAN or sub-GHz protocol development;
• Experience working with Semtech, TI, or similar radio chipsets at register level;
• Knowledge of RF compliance and certification workflows (FCC, ETSI, etc.);
• Familiarity with PAL/HAL design patterns and portable embedded architecture principles;
• Background in low-level testing, link-layer validation, and system profiling for power and RF performance.

WE OFFER

• Flexible work schedule;
• Private healthcare insurance - LuxMed (extended gold package for parents & kids);
• Multisport card;
• Workation;
• Financial bonuses for significant life events (wedding, birth of a child);
• Compensation of professional training: courses, seminars, trainings (it is decided for each person individually if the whole thing or a part of it will be covered);
• Author's rights (for those who write the code).