Job Description
Firmware Engineer
Location: Remote
Position Type: Contract
Contract Duration: 6 Months with possibility of extension
Position Overview
The Firmware Engineer will be responsible for maintaining and updating firmware on four proprietary hardware devices critical to the operations of the Demand Response business. These devices support remote energy monitoring, control equipment toggling, and secure communication with central servers and dispatch platforms.
This role requires a detail-oriented embedded systems engineer with deep knowledge of microcontroller architectures, communication protocols, and legacy firmware systems. The ideal candidate will be a proactive problem solver with a strong interest in sustaining long-lifecycle products and supporting hardware deployed in the field.
Essential Functions
Technical Firmware Maintenance
Education
Location: Remote
Position Type: Contract
Contract Duration: 6 Months with possibility of extension
Position Overview
The Firmware Engineer will be responsible for maintaining and updating firmware on four proprietary hardware devices critical to the operations of the Demand Response business. These devices support remote energy monitoring, control equipment toggling, and secure communication with central servers and dispatch platforms.
This role requires a detail-oriented embedded systems engineer with deep knowledge of microcontroller architectures, communication protocols, and legacy firmware systems. The ideal candidate will be a proactive problem solver with a strong interest in sustaining long-lifecycle products and supporting hardware deployed in the field.
Essential Functions
Technical Firmware Maintenance
- Maintain and enhance embedded firmware for low-power microcontroller-based systems.
- Analyze, debug, and resolve field-reported issues, ensuring reliability and uptime.
- Modify and extend legacy codebases with minimal documentation.
- Collaborate with electrical engineers to support device-level debugging and testing.
- Work with digital I/O, relays, KYZ pulse counting, analog inputs, and related interfaces.
- Use development tools and equipment such as debuggers, oscilloscopes, and logic analyzers.
- Integrate serial protocols including UART, RS-232, RS-485, SPI, and I2C.
- Support and troubleshoot cellular modem communications using AT commands.
- Maintain and optimize firmware for reliable data transmission from field-deployed units.
- Support satellite module integration for remote telemetry.
- Participate in long-term support for embedded products used in energy monitoring.
- Maintain secure firmware update mechanisms, bootloaders, and OTA processes.
- Ensure backward compatibility and long-term maintainability of deployed firmware.
- Collaborate with senior engineers to understand design rationale and architecture.
- Create and maintain technical documentation outlining firmware behavior and architecture.
- Work cross-functionally with hardware and field teams to coordinate debugging and enhancements.
- Record and share tribal knowledge to enhance future sustainability.
- Support continuous improvement efforts in firmware processes and maintainability.
- Assist with legacy code refactoring efforts while minimizing risk to deployed systems.
- Provide input into hardware design with firmware constraints in mind.
Education
- Bachelor’s degree in Electrical Engineering, Computer Engineering, or a related field, or equivalent experience.
- 2–5 years of experience in embedded firmware development.
- Prior exposure to legacy code maintenance and fielded device support.
- No certifications required.
- Familiarity with secure firmware design or industrial communication protocols is beneficial.
- Experience in embedded systems programming with competence in C/C++, Python, and Linux Shell Script.
- Experience working with Embedded Linux and associated open-source resources, including cross-compile toolchains and Yocto image build software.
- Ability to use debuggers, oscilloscopes, and logic analyzers.
- Experience with serial communication protocols including UART, RS-232, RS-485, SPI, and I2C.
- Experience with Modbus, KYZ pulse metering, and industrial energy monitoring equipment.
- Familiarity with battery-powered device design and power optimization.
- Clear communication and strong documentation practices.
Numbers & Facts
| Location | (or Remote), MA (Remote) |
| Industry | Computer/IT Services |
| Company Size | 1 to 9 employees |
| Year Founded | 2016 |
| Website | https://www.shglobalsolutions.com |
About Company
SH Global Solutions is a certified Service Disabled Veteran Owned Small Business (SDVOSB) headquartered in Maryland. Established in 2016 to modernize commercial and government technology to mitigate cybersecurity threats and to secure data centers from increasingly more frequent cyber attacks, we specialize in providing Information Technology (IT) solutions and services to government and commercial organizations. Our core areas of core expertise are focused in:
● Datacenter consolidation/optimization - this includes designing, procuring, and installing turnkey secure, modern infrastructure solutions including scalable and modular systems
● Professional program and project management services for large and complex projects
● In-building wireless solutions to enable 5G technology and connect to the growing Internet of Things (IoT)
Our team is comprised of highly skilled and dedicated professionals, uniquely qualified in cutting-edge technology, and engineering, and in the rapid deployment and implementation of new technologies. Our CEO is a retired United States Air Force Colonel and entrepreneur with over 25 years supporting the DOD, US Government agencies, and NATO worldwide.
Skills
- Analysis Skillsunmatched
- Bootingunmatched
- C Programming Languageunmatched
- C++ Programming Languageunmatched
- Communication Skillsunmatched
- Communication Systemsunmatched
- Communications Protocolsunmatched
- Communications Serversunmatched
- Computer Engineeringunmatched
- Computer Firmwareunmatched
- Continuous Improvementunmatched
- Cross-Functionalunmatched
- Debugging Skillsunmatched
- Debugging Toolsunmatched
- Detail Orientedunmatched
- Documentationunmatched
- Electrical Engineeringunmatched
- Embedded Linuxunmatched
- Embedded Programming Languagesunmatched
- Embedded Systemsunmatched
- Hardware Administrationunmatched
- Hardware Designunmatched
- I2Cunmatched
- Identify Issuesunmatched
- Image Editorsunmatched
- Industrial Designunmatched
- Input/Outputunmatched
- Linux Operating Systemunmatched
- Logic Analyzerunmatched
- Low Powerunmatched
- Microcontrollerunmatched
- Modemsunmatched
- Open Sourceunmatched
- Oscilloscopeunmatched
- Problem Solving Skillsunmatched
- Process Improvementunmatched
- Product Lifecycleunmatched
- Product Supportunmatched
- Programming Toolsunmatched
- Python Programming/Scripting Languageunmatched
- RMONunmatched
- RS-232unmatched
- RS-485unmatched
- Refactoringunmatched
- Risk Managementunmatched
- Serial Communications Protocolsunmatched
- Sustainabilityunmatched
- Systems Engineeringunmatched
- Systems/Internals Programmingunmatched
- Technical Writingunmatched
- Telemetryunmatched
- Testingunmatched
- Universal Asynchronous Receiver-Transmitter (UART)unmatched
- Unix Shell Programmingunmatched
Level up your application
Professional resume templates
Browse dozens of recruiter approved resume templates, layouts and formats. Choose your favorite and make it your own in minutes.
Free resume templatesFree resume builder
Improve your existing resume or start from scratch and create a standout, ATS-friendly resume. Add job-specific content, download and apply.
Free resume builder