Senior Electrical Engineer - LV and HV applications

Fourier Earth; Hyderabad; On-site; INR 1,500,000 - 2,100,000; Full time

Job summary

Fourier Earth in Hyderabad, India, is seeking a senior Power Electronics Engineer to lead high power system design (>100 kW) from concept to deployment. You will architect power converters (AC-DC/DC-DC up to 50 kW), develop SLDs, perform thermal and EMI/EMC analyses, and ensure safety compliance while collaborating with cross-functional teams.

Strong expertise in safety standards (UL 508A, IEC 62109, NFPA 70E/NEC), and hands-on lab bring-up, testing, and debugging with LTspice/PLECS/Simulink are

Qualifications

• Bachelor’s degree in Electrical Engineering with extensive industry experience bringing power circuit designs from concept to field deployment.
• A Master’s degree in Electrical Engineering is a plus.

Responsibilities

• Explore and develop novel ideas and architectural concepts for high power electrical systems (>100 kW, AC-DC).
• Drive selection and validation of converter topologies against system requirements; own bench-top testing and validation.
• Design power electronic converters, both AC-DC and DC-DC up to 50kW for integration into larger power systems.
• Develop and maintain high quality Single Line Diagrams (SLDs) communicating topology, protection, switching devices, and power flow.
• Protection circuit design for current, voltage, and temperature.
• Low voltage design and CAN/RS-485 interface.
• Development of Isolation and ground schemes and Low voltage/on board power supply rails.
• High power PCB design/layout using Altium.
• Modeling and simulation of power circuits.
• Selection of components like MOSFET/IGBT, controllers, OP-amps & ADCs; define converter control concept and small signal design.
• Power loss analysis and thermal design of power components.
• Power quality design for 3 phase AC input (Power factor and THD).
• Ensure designs comply with electrical safety standards (UL, IEC, NFPA 70E/NEC) and participate in design reviews.
• Identify electrical hazards, mitigation strategies, and document design to support audits and certifications.
• Oversee procurement and assembly of hardware; lab bring-up and verification; support system integration and testing.
• Work independently and exercise judgment in design changes.

Skills

Power conversion

Topologies

3-phase PFC

LTspice

PLECS

Matlab/Simulink

Altium

PCB design

EMI mitigation

Safety standards

UL 508A

NFPA 70E

Embedded firmware

Python

MathCAD

Lab equipment

Arc flash safety

Education

Bachelor's degree in Electrical Engineering

Master's degree in Electrical Engineering

Tools

LTspice

PLECS

MATLAB/Simulink

Altium Designer

PCB Design CAD

Python

MathCAD

Job description

Roles and Responsibilities

• Explore and develop novel ideas and architectural concepts for high power electrical systems (>100 kW, AC-DC), translating early ideation into concrete design decisions that guide system architecture and modularity.


• Drive the selection and validation of converter topologies against system-level design requirements including input power quality, output current ripple, and efficiency — and own the bench-top testing and experimental validation that confirms or informs those architectural choices.


• Design of power electronic converters, both AC-DC and DC-DC up to 50kW for integration into larger power systems.


• Develop and maintain high quality Single Line Diagrams (SLDs) as a core design deliverable at each stage of the design process, from initial architecture through final system integration. SLDs must clearly communicate system topology, protection schemes, switching devices, and power flow to cross-functional stakeholders.


• Protection circuit design for current, voltage, and temperature.


• Low voltage design for current, temperature, voltage measurements, CAN/RS-485 communication interface


• Development of Isolation and ground schemes


• Development of Low voltage/on board power supply rails


• High power PCB design/layout experience with using Altium


• Modeling and simulation of power circuits.


• Selection of all circuit components like MOSFET/IGBT, controllers, OP-amps & ADCs


• Define converter control concept and complete small signal design and analysis.


• Power loss analysis.


• Thermal design and analysis of the power components.


• Power quality design for 3 phase AC input (Power factor and total harmonic distortion).


• Ensure all designs comply with applicable electrical safety standards (e.g. UL, IEC, NFPA 70/NEC, IEEE) and actively participate in design reviews with a safety-first mindset.


• Identify and document electrical hazards, develop mitigation strategies, and maintain design documentation sufficient to support third-party safety audits and certification processes.


• Oversee procurement and assembly of hardware.


• Lab bring-up and verification of initial design and revisions.


• Support of the system integration and testing.


• Work independently and exercise judgment in making design changes.

Qualifications and Skills

Qualified candidates for this role will possess a Bachelor's Degree in Electrical Engineering with extensive industry experience bringing power circuit designs/products from concept to field deployment. A Masters degree in Electrical Engineering is a plus.

Other Requirements

• Knowledge of power conversion circuits and topologies
  
  
  
  • AC-DC: Totem pole PFC and 3 phase PFC, LLC
  
  
  • DC-DC: Buck, Full bridge, PSFB, DAB, and LLC
  
  
  
  


• Demonstrated ability to produce clear, accurate, and complete Single Line Diagrams for high power systems, including proper representation of protective devices, grounding schemes, metering, and disconnects.


• Working knowledge of electrical safety standards and regulatory frameworks relevant to high power industrial equipment, including UL 508A, IEC 62109, NFPA 70E, and/or NEC. Experience supporting UL/CE certification processes is strongly preferred.


• Knowledge and experience with LTspice, PLECS and Matlab Simulink.


• Knowledge and experience with schematic capture tools with preference for Altium.


• Knowledge and experience with printed circuit board design using popular CAD packages with a preference for Altium.


• Knowledge and experience mitigating EMI through circuit design and PCB layout.


• Knowledge of Matlab, Python, MathCAD and/or other common tools for design calculations.


• Hands-on experience using lab equipment including soldering stations, oscilloscopes, power supplies, loads, network analyzers, data acquisition systems, and spectrum analyzers.


• Demonstrated safe laboratory practices and familiarity with arc flash analysis, lockout/tagout (LOTO) procedures, and high voltage safety protocols.


• Strong and effective verbal, written, and interpersonal communication skills.


• Experience designing high frequency magnetics is highly desirable.


• Familiarity with Power Quality/EMI/EMC/Safety Regulatory Compliance is desirable.


• Firmware development for embedded controllers is desirable.