Simulation Engineer – SST Solutions, Morrisville​/Raleigh, NC

Delta, founded in 1971, is a global leader in switching power supplies and thermal management products with a thriving portfolio of smart energy-saving systems and solutions in the fields of industrial automation, building automation, telecom power, data center infrastructure, EV charging, renewable energy, energy storage and display, to nurture the development of smart manufacturing and sustainable cities. As a world-class corporate citizen guided by its mission statement, “To provide innovative, clean and energy-efficient solutions for a better tomorrow,” Delta leverages its core competence in high-efficiency power electronics and its ESG-embedded business model to address key environmental issues, such as climate change.

Delta serves customers through its sales offices, R&D centers and manufacturing facilities spread over close to 200 locations across five continents. Delta has 158 sales offices, 72 R&D centers and 48 manufacturing facilities worldwide.

Throughout its history, Delta has received various global awards and recognition for its business achievements, innovative technologies, and dedication to ESG. Since 2011, Delta has been listed on the DJSI World Index of Dow Jones Sustainability™ Indices for 11 consecutive years. In 2021, Delta was also recognized by CDP with leadership level ratings for its substantial contribution to climate change and water security issues and named Supplier Engagement Leader for its continuous development of a sustainable value chain.

At Delta, we’re leading the energy transition with innovative solutions in solar inverters, energy storage systems, and EV charging infrastructure. Our technologies are helping utilities, businesses, and communities decarbonize and build resilient, intelligent energy ecosystems. Join us in creating a cleaner, smarter energy future.

We are building the next generation of solid‑state, grid‑interactive power blocks that enable high‑density, flexible power delivery for datacenters, renewable energy systems, and advanced microgrids.

The Simulation Engineer is responsible for developing, maintaining, and validating component‑level and system‑level simulation models for Solid‑State Transformers (SSTs) and microgrid architectures. The primary focus of the role is on MATLAB/Simulink‑based modeling of power electronics, controls, and grid interaction, supporting product development, application engineering, and system validation.

This role collaborates closely with application, and standards engineers, providing simulation insight to guide architecture decisions, control strategy development, and performance validation across a range of grid‑connected and microgrid use cases. Data center and DER‑enabled applications represent key but not exclusive deployment scenarios.

• Work with product teams to develop and maintain simulation models for SST‑based microgrid systems
• Build system level models at multiple abstraction levels to balance simulation speed and fidelity
• Evaluate system behavior related to:
  • Voltage, current, and power control loops
  • Grid synchronization and islanding detection
  • Dynamic stability and transient response
  • Support performance analysis across a wide range of grid conditions and operating points

• Perform fault and protection studies using time‑domain simulation.
• Model and analyze:
  • Short‑circuit and fault conditions (AC and DC where applicable)
  • Inverter‑based fault response and current‑limiting behavior
  • SST fault ride‑through and protective actions
• Support development and validation of:
  • Protection schemes and logic
  • Fault detection thresholds and timing
  • Coordination between SSTs, DERs (where applicable), and utility…