Senior/Lead Embedded HMI Developer (Freelancer)

Spyrosoft is a software engineering company established in 2016, specializing in technology solutions for industry 4.0, automotive, geospatial, healthcare & life sciences, employee experience & education, and financial services industries. The company is a Certified Premium Partner of The Qt Company and part of the Qt Service Partner Program.

• 5+ years of experience in embedded software development
• Strong expertise in Embedded HMI development
• Excellent C++ skills, including modern C++
• Hands-on experience with microcontroller platforms such as STM, NXP, Espressif, Infineon, Renesas
• Commercial experience with at least one embedded HMI framework: Qt for MCUs, LVGL, TouchGFX, Slint, Crank, Embedded Wizard
• Knowledge of rendering pipeline optimization in embedded systems
• Solid understanding of architecture and design patterns
• Experience with version control, code reviews, and CI/integration tools
• Communicative English (spoken and written)

Nice to have:

• Experience with RTOS environments: FreeRTOS, Zephyr, other RTOS solutions
• Understanding of Agile methodologies
• Experience working on Proof of Concept (PoC) projects
• Familiarity with hardware schematics and low-level debugging
• Exposure to UX/UI design principles for embedded systems
• Experience using AI tools in day-to-day workflow

• Design and develop embedded HMI / GUI applications
• Define and influence HMI architecture and design patterns
• Develop graphical interfaces using Qt / QML (Embedded Linux), Qt for MCUs, LVGL, or other MCU-focused frameworks
• Optimize rendering pipelines on constrained embedded systems
• Integrate UI layers with firmware, drivers, and hardware
• Analyze performance bottlenecks (CPU, memory, rendering, FPS)
• Support code reviews, technical decision-making, and mentoring (Lead role)
• Collaborate with embedded, firmware, hardware, and UX teams
• Participate in Proof of Concepts (PoCs) and early project phases
• Influence technical and architectural decisions
• Support and mentor other developers
• Act as a technical point of contact in HMI-related areas