Lead Firmware Engineer – Power Conversion Control

Proper Voltage

. Lead real-time control firmware for bidirectional DC/DC power conversion stages .

Posted 10/9/2026full-timeRemote • California • United StatesSenior💰 $150,000 - $175,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in developing and verifying real-time control firmware for bidirectional DC/DC power converters, with a strong focus on deterministic design, control loop implementation, and hardware integration. Proficient in embedded systems programming, particularly in C, with a solid understanding of power electronics and control methodologies.

Highest-signal resume keywords

Embedded Firmware DevelopmentControl Loop ImplementationReal-Time Systems ProgrammingPower Converter DesignDeterministic ISR Design

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

C ProgrammingControl Loop DesignFixed-Point ArithmeticPWM ConfigurationADC and DAC IntegrationCycle-By-Cycle Current LimitOvervoltage ProtectionPhase Current BalancingModel VerificationUnit Testing

Soft Skills

Technical LeadershipCollaborationProblem SolvingCommunication

Tools & Technologies

DsPICMPLAB XMATLAB/SimulinkOscilloscopeVersion Control Systems

Certifications & Qualifications

UL 1973UL 1998UL 9540

Industry Keywords

Switched-Mode Power ConvertersBidirectional ConvertersMotor DrivesFunctional SafetyBattery Energy Storage

Tech Stack

Tools & technologies

DAC

About the role

Key responsibilities & impact

Lead real-time control firmware for bidirectional DC/DC power conversion stages
Implement control loops for four-switch buck-boost stages, multiphase interleaved operation, and phase current balancing
Develop compensators, mode arbitration, scheduler/ISR architecture, and platform abstraction within a portable DC/DC control library
Implement converter protections including cycle-by-cycle current limit, overvoltage, undervoltage, thermal derating, gate-drive fault handling, and safe-state transitions
Verify firmware against control models through closed-loop simulation and defined-tolerance response comparison
Architect and maintain deterministic fast-control and supervisory tasks with measured jitter and documented worst-case execution time
Configure and validate PWM, ADC, comparator, DAC, trigger, sampling, dead-time, and protection architectures
Measure sampling, computational, and PWM update latency on target and communicate results to the controls engineer
Implement operating modes including constant current, constant voltage, constant power, current limit, soft-start, buck-to-boost transition, phase shedding, and charge/discharge reversal
Bring up converter hardware in the lab through full envelope characterization, including gate-drive debugging, dead-time optimization, and shoot-through avoidance
Support loop gain, transient response, and efficiency testing and debug model-to-hardware discrepancies
Build on-target unit tests and hardware-in-the-loop regression infrastructure
Author firmware specifications and certification verification evidence supporting UL 1973, UL 1998, and UL 9540
Serve as technical lead, review control and embedded code, and contribute to hardware design reviews

Requirements

What you’ll need

BS in Electrical Engineering, Computer Engineering, or equivalent demonstrated capability
Six or more years developing production embedded firmware in C for resource-constrained real-time systems
Production control firmware experience on switched-mode power converters, inverters, or motor drives
Working knowledge of PID and 2p2z/3p3z difference equations, discretization, sampling and computational delay, saturation, and anti-windup
Fluency with high-resolution PWM, PWM-triggered ADC, analog comparators, DACs, and DMA
Fixed-point arithmetic competence, including Q-format scaling, range and overflow analysis, and saturating behavior
Deterministic ISR design under hard timing constraints and ability to measure and defend worst-case execution time
Independent lab capability with oscilloscopes, isolated and differential probes, current probes, electronic loads, and bidirectional supplies
Version control, code review, specifications, and test evidence experience
Ability to work in the United States; visa sponsorship is unavailable
Preferred: dsPIC experience, dsPIC33C/33CK/33CH, MPLAB X, XC16, Microchip digital power ecosystem
Preferred: bidirectional and multiphase interleaved converter control, average current mode control, GaN/SiC, ARM Cortex-M, PLECS, MATLAB/Simulink, network analyzer measurements, battery energy storage/EV charging/PV/grid-interactive converters, functional safety and certification, MISRA C, static analysis, CAN/CANopen, and portable control libraries

Benefits

Comp & perks

Equity options as part of the compensation package
Comprehensive healthcare benefits (medical, dental, vision)
Generous paid time off
Paid holidays (PTO) policy