Senior Embedded System Engineer

Stelvio Inc.; Grapevine (TX); On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

401(k) match

Life insurance

Disability benefits

Medical coverage

Job summary

Stelvio Inc. is seeking a Senior Firmware Engineer to join their Engineering & Test team, taking hands-on ownership of complex firmware across the full embedded lifecycle.

You will design, develop, and test embedded software, drivers, and real-time architectures, integrating with hardware, sensors, displays, and communication protocols.

This role requires strong C/C++, RTOS experience, Python tooling, and a mentoring mindset; visa sponsorship is not available.

Qualifications

• Bachelor’s degree in Electrical Engineering, Computer Science, or related field.
• 5+ years of progressive embedded systems development experience.
• Advanced embedded C/C++ programming skills.
• Experience with RTOS and real-time systems.
• Proven hardware/software integration and debugging experience.
• Hands-on PCB and component testing experience.
• Strong Python skills for test automation and data collection.
• Independent ownership of firmware components from concept to production.

Responsibilities

• Design, develop, and maintain embedded software and device drivers in C/C++ for production hardware.
• Develop firmware architectures for RTOS-based real-time systems.
• Work with I2C, SPI, UART, USB, and Bluetooth interfaces.
• Perform hardware/software integration and debugging across boards and components.

Skills

Embedded C/C++

RTOS

Python

Debugging

System integration

Education

Bachelors in EE/CS

Tools

Oscilloscope

Logic Analyzer

Multimeter

JIRA

SVN

Job description

Stelvio are working with a client that develops innovative technology for safety-sensitive, hardware-focused applications. Their products combine embedded software, electronics, communications, and connected technologies to deliver reliable solutions used in real-world environments.

They are looking for a Senior Firmware Engineer to join their Engineering & Test team. This is a hands-on senior technical role for someone with strong embedded systems experience who can take ownership of complex firmware development while contributing to architecture, hardware/software integration, testing, and long-term product reliability.

You will work across the full embedded development lifecycle, helping shape technical decisions, identify engineering risks, improve development standards, and deliver stable, production-ready firmware.

Please note: Employment-based visa sponsorship or visa transfers are not available for this position.

Responsibilities

• Design, develop, and maintain embedded software and device drivers in C/C++ for production hardware.
• Develop and improve firmware architectures for real-time systems using RTOS, state machines, and event-driven designs.
• Work with communication interfaces and protocols including I2C, SPI, UART, USB, and Bluetooth.
• Develop and optimize embedded software for displays, sensors, control systems, and closed-loop applications including PID controllers.
• Interpret schematics, datasheets, and hardware specifications to support low-level development and hardware/software integration.
• Use oscilloscopes, logic analyzers, multimeters, and other lab equipment for debugging, validation, and root-cause analysis.
• Build and maintain Python scripts and test tools for firmware flashing, configuration, automated testing, data collection, log analysis, and diagnostics.
• Perform functional and board-level testing across PCB assemblies, microcontrollers, sensors, memory, communications, power supplies, relays, and other I/O circuitry.
• Troubleshoot PCB, firmware, hardware, and component-level issues using schematics, test points, diagnostic tools, and automated testing.
• Work alongside hardware and test engineers to define PCB test requirements, acceptance criteria, coverage, and repeatable validation processes.
• Develop and enhance automated bench testing and hardware-in-the-loop (HIL) environments.
• Collaborate across hardware, firmware, application, and test teams to integrate new functionality and improve system reliability.
• Identify technical debt, architectural opportunities, and performance constraints, implementing scalable improvements where appropriate.
• Contribute to engineering planning by identifying technical challenges, hardware dependencies, and resource requirements.
• Document firmware architecture and technical decisions using UML, sequence diagrams, flowcharts, and similar modelling approaches.
• Promote strong engineering practices around code quality, static analysis, secure embedded development, and environmental testing.
• Act as a senior technical contributor through design input, code reviews, and mentoring.

Qualifications

• A Bachelor’s degree in Electrical Engineering, Computer Science, or a related discipline.
• At least 5 years of progressive embedded systems development experience.
• Advanced embedded C/C++ programming skills.
• Strong experience developing firmware for RTOS and real-time systems.
• Proven hardware/software integration and low-level debugging experience.
• Hands-on experience testing PCB assemblies and individual electronic components.
• The ability to interpret schematics, component datasheets, test specifications, and electrical measurements when diagnosing hardware issues.
• Strong Python skills for test automation, engineering utilities, device communications, data acquisition, and diagnostics.
• Experience independently owning firmware components from initial concept through to production.
• Strong analytical, troubleshooting, and communication skills.

Experience with the following would be beneficial:

• Microcontroller platforms such as Renesas, MSP430, Nordic, or similar.
• I2C, SPI, UART, USB, and Bluetooth communications.
• USB and Bluetooth stacks and automotive protocols such as OBD-II.
• Cellular technologies including GSM, LTE, or CDMA and serial standards such as RS-485.
• Automated hardware testing, HIL environments, or production test fixtures.
• Python libraries for serial communications, instrumentation, data analysis, and automated reporting.
• Agile development environments and tools such as JIRA and SVN.
• Java or C# for engineering tooling, automation, or system integration.
• Regulated, safety-sensitive, or hardware-centric product development environments.
• Comprehensive medical, dental, and vision coverage.
• A 401(k) retirement plan with company match.
• Birthday and anniversary bonuses.
• Life insurance.
• Short- and long-term disability benefits.
• A positive working environment focused on work/life balance and professional development.
• The opportunity to work hands-on with innovative, industry-leading technology.
• Mission-driven work with both local roots and a broader global impact.