DC/DC Power Electronics Engineer, 800V Data Center

Amazon Inc.; Lille; On-site; EUR 70,000 - 100,000; Full time

Job summary

AWS AIS is seeking a DC/DC Power Electronics Engineer to own and optimize isolated high-power DC/DC stages that form the core of the MV-to-800 VDC SST power-conversion chain. You will design DAB/CLLC converters, improve modulation, and drive efficiency and thermal performance across variable data-center loads.

You'll collaborate with magnetics, thermal, controls, and PCB teams to ensure interfaces and fault-isolation strategies are robust, while documenting trade-offs and technical specs for

Qualifications

• Bachelor's degree in Electrical Engineering or higher.
• Experience with isolated high-power DC/DC converter design.
• Experience with high-voltage power electronics and laboratory validation.
• Ability to collaborate with controls, magnetics, thermal and PCB engineers.

Responsibilities

• Design DAB, CLLC and related isolated DC/DC converter architectures.
• Develop high-frequency modulation strategies for high-power operation.
• Optimize ZVS/ZCS operating regions and switching performance.
• Evaluate efficiency across variable AI/data-center load profiles.
• Coordinate DC/DC design with medium-frequency transformer and inductor designs.
• Define electrical interfaces with the AC/DC front end and 800 VDC output.
• Assess paralleling, current sharing and module fault-isolation strategies.
• Support protection and control requirements for the DC/DC stage.
• Use PLECS, PSIM and/or MATLAB/Simulink to model converter behavior.
• Validate transient response, efficiency and thermal performance.
• Correlate simulation with hardware measurements.
• Support prototype testing and design iteration.

Skills

Isolated high-power DC/DC converter设计

High-voltage power electronics

Cross-functional collaboration

Documentation of design decisions

Education

Bachelor's degree in Electrical Engineering

Master's degree or PhD in Electrical Engineering

Tools

PSIM

PLECS

MATLAB/Simulink

Job description

AWS AIS is seeking a DC/DC Power Electronics Engineer to own and optimize isolated high-power DC/DC stages that form the core of the MV-to-800 VDC SST power-conversion chain. You will design DAB/CLLC converters, improve modulation, and drive efficiency and thermal performance across variable data-center loads.

You'll collaborate with magnetics, thermal, controls, and PCB teams to ensure interfaces and fault-isolation strategies are robust, while documenting trade-offs and technical specs for