Senior Specialist Firmware.

Job Description: Power Electronics Firmware Senior Specialist

Position: Senior Specialist Power Electronics Firmware

Experience: 10–12 Years

Location: (Specify)

Department: R&D / Product Engineering

Employment Type: Full-time

Role Overview

The Senior Specialist – Power Electronics Firmware will lead the design, development, and optimization of embedded control firmware for advanced power electronic converters and UPS systems. This role requires deep expertise in closed-loop control algorithms, real-time embedded development, multilevel & interleaved PWM techniques, and load-sharing/paralleling control strategies. The candidate will work closely with hardware, system engineering, and validation teams to deliver high-performance, reliable, and certified power products.

Key Responsibilities

1. Firmware Development & Control Algorithms

• Design and implement real-time embedded control firmware for power converters (DC-DC, AC-DC, DC-AC, 3-level NPC, interleaved converters, UPS inverters).

• Develop advanced closed-loop control algorithms:

• PI/PR controllers

• dq-frame control

• current/voltage loop control

• grid-tie and standalone inverter control

• droop control

• nonlinear/observer-based controls (as needed)

• Implement digital PWM, dead-time control, PLL, current balancing, and modulation schemes (SPWM, SVPWM, 3-level modulation, interleaved PWM).

• Develop and optimize firmware for DSP/MCU platforms (TI C2000 preferred).

2. Paralleling & Load Sharing

• Lead the development of paralleling algorithms for multi-converter and UPS systems (N+1 redundant, hot-sync, load-share control).
• Implement communication-based and droop-based load-sharing control loops.
• Ensure system stability during synchronization, phase alignment, current sharing, and transient events.
• Troubleshoot dynamic instability, oscillations, harmonics, and cross-current issues in paralleled systems.

3. Architecture, Design & Documentation

• Define firmware architecture, state machines, safety routines, and diagnostic strategies.
• Develop detailed design documentation, test plans, and release notes.
• Ensure compliance with quality processes (MISRA-C, IEC/UL, documentation standards).

4. System Integration & Validation

• Work closely with hardware teams to optimize sensor interfaces, protection circuits, and control bandwidth.
• Conduct lab testing of converters/UPS systems, tuning control loops, and managing EMI/thermal/efficiency trade-offs.
• Perform root-cause analysis and debug failures at system, firmware, and hardware levels.

5. Leadership & Collaboration

• Mentor junior engineers in embedded development and control theory.
• Work cross-functionally with hardware, mechanical, compliance, and product teams.
• Drive innovation in converter topologies, control techniques, and software processes.

Required Skills & Expertise

Technical Expertise

• Strong hands-on experience (10–12 years) in embedded firmware for power electronics.
• Deep understanding of closed-loop control of converters/inverters (dc-link control, current/voltage loops, PLL, PR, droop, dq-control).
• Expertise in paralleling of converters/UPS including sync control, load sharing, circulating current minimization.
• Strong experience with TI C2000 family (F280x, F2837x, F28004x, F2838x or similar).
• Proficiency in C/C++, fixed-point arithmetic, real-time firmware optimization.
• Experience with control design tools: MATLAB/Simulink, PSIM, PLECS.
• Knowledge of common topologies: interleaved converters, 3-level NPC, full-bridge inverters, LLC/DC-DC.
• Experience with communication interfaces: CAN, RS485, SPI, I2C, Modbus.

Preferred Additional Skills

• Experience with FPGAs or fast control loops on MCUs.
• Exposure to EMI/EMC compliance, safety standards, and grid-connect requirements.
• Knowledge of grid codes (IEC 62040, IEC 62109, IEEE 1547) is a plus.
• Understanding of reliability engineering and protection mechanisms.

Educational Qualifications

• B.E./B.Tech or M.E./M.Tech in Electrical Engineering, Power Electronics, Embedded Systems, or related field.

Behavioral Competencies

• Strong analytical mindset and problem-solving abilities.
• Ability to work independently and lead technically complex tasks.
• Good communication and teamwork skills.
• Ownership mindset with focus on quality and reliability.