Senior Firmware Engineer

Altentechnologyusa; Berkeley (CA); On-site; USD 110,000 - 130,000; Full time

Job summary

ALTEN Technology USA in Berkeley is seeking a Senior Firmware Engineer to craft reliable C/C++ code for our Battery Management System. You will collaborate with hardware and software engineers to design, implement, debug, and deploy firmware across controllers in our product.

The role emphasizes UL standards, embedded RTOS, power electronics, and robust testing. Candidates should have 3–5+ years of firmware experience and strong problem‑solving skills in a fast-paced environment.

Qualifications

• 3–5+ years of firmware experience for embedded/RTOS in battery management or power electronics.
• Strong C/C++ for real‑time, multithreaded control applications.
• Fundamentals: bare‑metal/RTOS, fixed‑point math, interrupts, unit tests.
• Power control algorithms for PWM, current/voltage loops, observers and filters.

Responsibilities

• Derive software specs and design features to meet UL 1998/UL 5500.
• Create C/C++ embedded modules for sensor and actuator controls.
• Write hardware self‑test code for bring‑up and manufacturing software.
• Develop MCU firmware for embedded systems, sensors and power flow control.
• Contribute to unit/integration tests and collaboration with system/test teams.
• Support deployment and field troubleshooting to ensure performance.
• Write robust, maintainable embedded code following best practices.
• Lead complex debugging to resolve performance bottlenecks and defects.
• Adhere to formal software processes including version control and reviews.

Skills

C/C++ Embedded

RTOS Systems

Firmware Debugging

Power Electronics

Multithreading

PWM Control

Hardware Interfaces

Tools

Vector CANalyzer

LabVIEW

Oscilloscopes

Power Analyzers

Job description

We’re ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life—from advancing space exploration and life‑saving medical devices to building autonomous electric vehicles. With 3,000+ experts across North America, we partner with leading companies in aerospace, medical devices, robotics, automotive, commercial vehicles, EVs, rail, and more.

As part of the global ALTEN Group—57,000+ engineers in 30 countries, we deliver across the entire product development cycle, from consulting to full project outsourcing.

When you join ALTEN Technology USA, you’ll collaborate on some of the world’s toughest engineering challenges, supported by mentorship, career growth opportunities, and comprehensive benefits. We take pride in fostering a culture where employees feel valued, supported, and inspired to grow.

Workplace: On-site, 5 days per week

Location: Berkeley, CA

We are seeking a Senior Firmware Engineer to create reliable C/C++ code for our next generation Battery Management System. You will work alongside hardware and other software engineers to design, implement, debug, and deploy firmware modules and packages to the various controllers in our product.

Responsibilities

• Derive software specifications and design features based on product requirements to meet UL 1998 and UL 5500 standards
• Create C/C++ embedded modules for hardware sensor and actuator controls.
• Write hardware self‑test code and procedure to support hardware bring‑up and End‑of‑line manufacturing software.
• Develop microcontroller firmware for embedded systems, sensors, and power flow control circuitry for our Battery Management System (BMS)
• Contribute to the unit and integration testing suite, and coordinate with the system and test team, to allow continuous delivery of high‑quality firmware
• Support product deployment and field activities, including troubleshooting and debugging firmware in field environments to ensure performance and reliability
• Write robust, maintainable, and well‑documented embedded code that adheres to industry best practices.
• Lead complex software debugging efforts to identify and resolve performance bottlenecks and system defects.
• Drive adherence to formal software development processes, including version control, code reviews, and compliance documentation.

Required Qualifications

• 3‑5 plus years of firmware experience for embedded and RTOS systems for battery management and/or power electronics
• Extensive experience using C or C++ for embedded systems in real‑time, multithreaded control applications
• Strong embedded fundamentals including bare‑metal or RTOS, fi ed‑point math, interrupt‑driven control, unit tests, and HIL regressions
• Expert knowledge of power control algorithms and digital control design for power converters including PWM generation, current and voltage loops, observers, filters, and stability analysis
• Knowledge of peripheral communication protocols such as I2C and SPI, and industrial protocols such as Modbus, CAN, and Ethernet.
• Proficient with OTS software communication debug and integration tools such as Vector CANalyzer, LabView, and etc.
• Electrical engineering depth including reading schematics, troubleshooting hardware interfaces, and working knowledge of gate drivers, sensors, protections, EMC, thermal, and safe bring‑up

Preferred Qualifications

• Lab proficiency using oscilloscopes, power analyzers, electronic loads, and safe high‑power test practices
• Familiarity with software compliance standards (e.g., MISRA, ISO 26262, CMMI, ASPICE, or UL 1998)
• Experience implementing secure bootloaders and OTA updates with signing and encryption

Salary Range

• $110,000‑130,000
• The actual salary offered is dependent on various factors including, but not limited to, location, the candidate’s combination of job‑related knowledge, qualifications, skills, education, training, and experience

All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, age, genetic information, or pregnancy.

Please beware of job seeker scams and see this important notice on our careers page for more information about our recruiting process.

Compliance Notice

Alten USA is a federal contractor subject to the requirements of the Vietnam Era Veterans’ Readjustment Assistance Act (VEVRAA) and Executive Order 11246. We are an Equal Opportunity Employer and consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

Drug Screening Requirement

As a federal contractor, Alten USA maintains a drug‑free workplace. All candidates selected for employment will be required to successfully complete a pre‑employment drug screening as a condition of hire.