TESCO - The Eastern Specialty Company

Senior Firmware Engineer

LocationBristol, PA
Job Typefull_time

About This Job


Senior Firmware Engineer

Full-time ON-SITE POSITION located in Bristol, PA.


Company Overview:

Privately owned since 1904, TESCO provides innovative products and solutions to the electric utility industry and is the largest manufacturer in our market niche. We manufacture hundreds of products including utility consumables, test equipment, safety equipment, enterprise software and more. We have offices in Ohio, Canada and the Philippines with our headquarters and primary manufacturing site in Bristol, PA.


Job Overview:

We are growing and looking for a Firmware Engineer with strong embedded systems experience and a passion for bridging software and hardware. The Firmware Engineer will be responsible for designing, developing, and maintaining low-level firmware that powers TESCO’s industry-leading products. This role involves working hands-on with hardware, writing efficient and reliable embedded code, and collaborating across disciplines to bring ideas from concept to reality. You will contribute to both new product development and sustaining engineering efforts. This position reports directly to the Software Lead Engineer and works closely with electrical, software, and test engineering teams to ensure firmware integrates seamlessly with hardware and meets functional requirements in real-world applications.


Key Job Responsibilities:

Design, develop, and maintain embedded firmware for TESCO products across various platforms, including microcontrollers and real-time operating systems (RTOS)
Collaborate with cross-functional teams including electrical, mechanical, and software engineers to define and meet system-level requirements
Develop and debug firmware using C/C++ with an emphasis on efficiency, reliability, and maintainability
Interface directly with hardware through low-level drivers (GPIO, ADC, UART, SPI, I2C, etc.)
Participate in system architecture design, bringing expertise in embedded software constraints and integration with hardware
Work closely with test engineering and production teams to validate firmware and support manufacturing automation and calibration processes
Write clear documentation, including design specifications, testing procedures, and firmware release notes
Conduct and lead design/code reviews and ensure adherence to best practices for embedded development
Provide technical guidance or mentorship to junior engineers and support small team coordination or task delegation when required
Investigate and troubleshoot field issues, applying root-cause analysis and implementing corrective firmware changes
Perform other duties as assigned by supervisor.


Requirements:

BS or MS degree in Electrical Engineering, Computer Engineering, or a related field
5–7 years of hands-on experience developing embedded firmware in C or C++
Familiarity with real-time operating systems (e.g., FreeRTOS) and embedded system constraints
Solid understanding of digital and analog electronics, microcontroller architectures, and communication protocols (SPI, I2C, UART, Modbus, etc.)
Knowledge of STM32F103 and / or Colibri IMX7D
Knowledge of IOT and telecommunications including TCP/IP and MQTT
Experience in using embedded debugging tools such as oscilloscopes, logic analyzers, JTAG/SWD
Knowledge of version control systems (e.g., Git), issue tracking tools, and structured release cycles
Basic understanding of electrical schematics and ability to collaborate with hardware teams
Exposure to safety-critical or industrial applications and compliance practices is a plus
Experience working on cross-platform software-hardware systems (bonus if experience overlaps with power metering or utility equipment)
Demonstrated ability to coordinate small teams or projects, even informally, with ~1 year of leadership/supervisory experience


Job Type: Full-time


Benefits:

401(k)
Dental insurance
Employee assistance program
Health insurance
Paid time off
Professional development assistance
Referral program
Tuition reimbursement
Vision insurance


Schedule:

Day shift
Monday to Friday


Education:


Bachelor's (Preferred)


Experience:

developing embedded firmware in C or C++: 5 years (Required)


Ability to Commute:

Bristol, PA 19007 (Required)


Ability to Relocate:

Bristol, PA 19007: Relocate before starting work (Required)


Work Location: In person

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