Our Firmware RTOS team develops the mission-critical communications stack, operating on a dual-processor architecture. The team’s objectives center on maintaining hard real-time determinism for the P25 LMR radio stack while integrating a massive suite of broadband connectivity modules without mutual interference.
Job Summary
We’re seeking a Senior Embedded C/C++ Engineer with 7+ years of experience in RTOS. This is a unique opportunity to build a brand-new product from scratch and take complete ownership of the cellular integration and cross-processor connectivity logic for a next-generation device. As part of our team, you will be responsible for hardware bringup, architecture design, and business requirements implementation, ensuring the device achieves seamless 5G/LTE connectivity with reliable fallback to P25 LMR networks.
Responsibilities and Duties
— Contribute to architectural decisions, component selection, and hardware-software co-design for the new platform. — Design and develop high-quality code in C/C++ for RTOS-based and simple scheduler-based MCUs. — Break down complex tasks, lead feature development, and drive prototypes to production-ready status. — Provide accurate estimates and development commitments based on the feature PRD. — Integrate and configure pre-certified 5G/LTE modem modules from the early bringup phase. — Develop the connectivity manager logic on the Communications Processor to handle seamless fallback transitions between 5G, LTE, and P25 LMR. — Design and document the Inter-Processor Communication (IPC) API contract between the Application Processor and communications controller. — Optimise firmware to support rigorous carrier and public safety certifications. — Collaborate closely with software, hardware, and RF teams to create high-quality prototypes and innovative products. — Regularly report project status and technical risks during meetings with management.
Qualifications and Skills
— At least 7 years of commercial experience in embedded development, with expertise in C/C++ and deep knowledge of RTOS and microcontroller architectures (ARM, RISC-V). — Proven track record of bringing up new hardware and working with reference design boards or evaluation kits. — Extensive experience designing high-bandwidth, low-latency Inter-Processor Communication (IPC). — Solid experience integrating cellular modems (AT commands, modem control layers) at the firmware level. — Knowledge of communication protocols (I2C, SPI, UART) and low-level device driver integration. — Proficiency in the full SDLC, including professional engineering practices like Git, CMake, code reviews, and continuous integration. — Ability to work with high autonomy and take ownership of complex modules started from the ground up. — Excellent communication skills for technical discussions and documentation, with a collaborative mindset for cross-functional team environments. — At least an Upper-Intermediate level in both written and spoken English (B2).
Nice to have
— Familiarity with 3GPP Release 16/17 standards, MCPTT frameworks, Wi-Fi 7, Bluetooth 6.0, UWB, or GNSS integration. — Experience in basic HW diagnostics (using oscilloscopes, logic analyzers) and basic soldering. — Experience with cellular logging and diagnostic tools — Familiarity with RF signal processing or physical coexistence challenges. — Experience in embedded Linux development. — Experience using AI-powered tools to enhance productivity and code quality.
We offer multiple benefits that include
— The environment of equal opportunities, transparent and value-based corporate culture, and an individual approach to each team member — Competitive compensation and perks. Annual performance review — Opportunity to receive a Performance Bonus for your individual achievements and a Loyalty Bonus recognizing your dedication to the company — Gig-contract — 21 paid vacation days per year, paid public holidays according to Ukrainian legislation — Development opportunities like corporate courses, knowledge hubs, and free English classes as well as educational leaves — Medical insurance is provided from day one. Sick leaves and medical leaves are available — Remote working mode is available within Ukraine only — Free meals, fruits, and snacks when working in the office.
