[Remote] Embedded Connectivity Engineer

Note: The job is a remote job and is open to candidates in USA. SQUAD is seeking a Senior Embedded C/C++ Engineer to join their Firmware RTOS team, which develops mission-critical communications stacks. The role involves building a new product from scratch, focusing on cellular integration and cross-processor connectivity logic for a next-generation device, ensuring seamless connectivity with reliable fallback options.ResponsibilitiesContribute to architectural decisions, component selection, and hardware-software co-design for the new platformDesign and develop high-quality code in C/C++ for RTOS-based and simple scheduler-based MCUsBreak down complex tasks, lead feature development, and drive prototypes to production-ready statusProvide accurate estimates and development commitments based on the feature PRDIntegrate and configure pre-certified 5G/LTE modem modules from the early bringup phaseDevelop the connectivity manager logic on the Communications Processor to handle seamless fallback transitions between 5G, LTE, and P25 LMRDesign and document the Inter-Processor Communication (IPC) API contract between the Application Processor and communications controllerOptimise firmware to support rigorous carrier and public safety certificationsCollaborate closely with software, hardware, and RF teams to create high-quality prototypes and innovative productsRegularly report project status and technical risks during meetings with managementSkillsAt 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 kitsExtensive experience designing high-bandwidth, low-latency Inter-Processor Communication (IPC)Solid experience integrating cellular modems (AT commands, modem control layers) at the firmware levelKnowledge of communication protocols (I2C, SPI, UART) and low-level device driver integrationProficiency in the full SDLC, including professional engineering practices like Git, CMake, code reviews, and continuous integrationAbility to work with high autonomy and take ownership of complex modules started from the ground upExcellent communication skills for technical discussions and documentation, with a collaborative mindset for cross-functional team environmentsAt least an Upper-Intermediate level in both written and spoken English (B2)Familiarity with 3GPP Release 16/17 standards, MCPTT frameworks, Wi-Fi 7, Bluetooth 6.0, UWB, or GNSS integrationExperience in basic HW diagnostics (using oscilloscopes, logic analyzers) and basic solderingExperience with cellular logging and diagnostic toolsFamiliarity with RF signal processing or physical coexistence challengesExperience in embedded Linux developmentExperience using AI-powered tools to enhance productivity and code qualityBenefitsThe environment of equal opportunities, transparent and value-based corporate culture, and an individual approach to each team memberCompetitive salary packages with performance-based annual reviews.Opportunity to receive a Performance Bonus for your individual achievements and a Loyalty Bonus recognizing your dedication to the company.Employment via Contract of Employment (UoP) in complete alignment with Polish Labour Law.Guaranteed paid vacation, public holidays, and medical leaves as per statutory regulations.Continuous growth and development opportunities through internal knowledge hubs, corporate courses, and free English classesComprehensive private medical insurance to supplement your standard NFZ coverage.Company OverviewWe Develop AI-Powered Camera Solutions. From concept to manufacturing readiness, covering sensor and optics, firmware, edge AI, cloud, and mobile. It was founded in 2016, and is headquartered in Limassol, CY, with a workforce of 501-1000 employees. Its website is https://squad.tech/.