Product Development Engineer – Power Electronics

Company: Dium Lucis Technologies Private Limited (VIBETEX)
Location: Chennai (On-site)
Employment Type: Full-time
Joining: Immediate
Industry: Electronics and Computers Manufacturing

About the Role
VIBETEX is looking for highly motivated M.Tech / PhD graduates to join our power electronics team in Chennai. The selected candidate will work on the development of next-generation GaN-based fast charging products, including a 65W/45W dual-port USB-C charger platform supporting USB PD 3.0, PPS, and STM32-based monitoring and protection systems.
This role provides complete ownership of the product lifecycle—from concept, circuit design, simulation, PCB development, prototyping, testing, validation, and manufacturing support.

Key Responsibilities

• Design and develop high-efficiency AC-DC power converters and fast charging solutions.
• Perform circuit design for flyback converters, synchronous rectification, power factor correction (PFC), and GaN-based power stages.
• Design analog and digital control circuits, sensing circuits, protection circuits, and communication interfaces.
• Develop and validate USB Power Delivery, PPS, and Type-C charging architectures.
• Create schematics, component selection, BOM generation, and PCB layouts using industry-standard EDA tools.
• Work with STM32 microcontrollers for system monitoring, fault protection, and product intelligence.
• Perform circuit simulation, design calculations, thermal analysis, and efficiency optimization.
• Build prototypes, conduct debugging, troubleshooting, and root-cause analysis.
• Carry out electrical, thermal, EMI/EMC, reliability, and safety testing.
• Collaborate with mechanical, firmware, and manufacturing teams to ensure successful product development.
• Support DFM (Design for Manufacturing), DFA (Design for Assembly), and production ramp-up activities.
• Interface with component vendors, PCB manufacturers, and contract manufacturing partners.
• Participate in product certification activities including IEC, UL, CE, and related compliance requirements.
• Document design decisions, validation reports, manufacturing procedures, and engineering change requests.
  
  

Required Skills

• Strong fundamentals in Power Electronics.
• Knowledge of SMPS, Flyback Converters, DC-DC Converters, PFC, and GaN Power Devices.
• Understanding of USB Type-C, USB PD, and fast charging technologies.
• Experience with circuit simulation tools such as MATLAB/Simulink, LTspice, PLECS, or PSIM.
• Familiarity with PCB design tools such as Altium Designer.
• Knowledge of microcontrollers, embedded systems, and STM32 platforms.
• Understanding of EMI/EMC, thermal management, and power system protection.
  

Strong analytical, debugging, and problem-solving skills

Why Join VIBETEX
• Work on a real product addressing charger reliability and in the fast-charging ecosystem.
• Direct exposure to product development, prototyping, testing, manufacturing, and certification.
• High ownership role in an early-stage hardware startup.