Control Testing Engineer - Plymouth Township, MI

Delta Electronics (Americas) Ltd.; Plymouth (MI); On-site; USD 110,000 - 160,000; Full time

Job summary

Delta Electronics Americas seeks an experienced test engineer to own the test strategy for the full microgrid control stack, from firmware to EMS. You will build and run HIL test benches on RTDS and OPAL-RT to automate regression and produce evidence for UL 1741-SB, IEEE 1547-2018, and site acceptance tests.

Responsibilities include designing HIL benches, defining test plans, building regression pipelines, and generating certification reports while supporting commissioning and field issues in a

Qualifications

• BS/MS in Electrical / Power / Control Systems Engineering, 4+ years in controls testing or HIL.
• Experience with RTDS and/or OPAL-RT, model build and I/O mapping.
• Strong Python scripting and one automation framework (pytest, robot, TestStand, LabVIEW).
• Working knowledge of Modbus TCP, IEC 61850 (GOOSE/MMS), DNP3.
• Familiar with UL 1741-SB, IEEE 1547-2018, and FAT/SAT processes.

Responsibilities

• Design and operate HIL test benches using RTDS to model power systems, PCS/BESS, and grid scenarios.
• Define test plans for islanding, blackstart, ride-through, protection coordination, and EMS dispatch.
• Build automated regression pipelines (Python / TestStand / pytest) with Azure DevOps CI/CD.
• Run integration tests across layers, validating timing, data contracts, alarms, and failover.
• Generate certification evidence and test reports for IEEE 1547-2018, UL 1741-SB, FAT/SAT.
• Support commissioning and field issues into regression cases.

Skills

Python scripting

HIL testing

RTDS

OPAL-RT

Automation frameworks

Education

BS in Electrical / Power / Control Systems Engineering

MS in Electrical / Power / Control Systems Engineering

Tools

RTDS

OPAL-RT

TestStand

LabVIEW

Modbus TCP

IEC 61850

DNP3

Job description

Delta, founded in 1971, is a global provider of power and thermal management solutions. Its mission statement, "To provide innovative, clean and energy-efficient solutions for a better tomorrow," focuses on addressing key environmental issues such as global climate change. As an energy-saving solutions provider with core competencies in power electronics and automation, Delta's business categories include Power Electronics, Mobility, Automation, and Infrastructure.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.

Role Summary

You will own the test strategy for the full microgrid control stack — from PCS/BESS firmware and Unit Controller through RT, SCADA, and EMS. You will build and run HIL test benches on RTDS automate regression, and produce the evidence needed for UL 1741-SB, IEEE 1547-2018, and customer/utility acceptance.

Key Responsibilities

• Design and operate HIL test benches using RTDS — model power systems, PCS/BESS, and grid scenarios
• Define test plans for islanding, blackstart, ride-through (LVRT/HVRT/FRT), protection coordination, mode transitions, and EMS dispatch
• Build automated regression: Python / TestStand / pytest pipelines integrated with Azure DevOps CI/CD; publish coverage and pass/fail dashboards
• Run integration tests across different layers validate timing, data contracts, alarm propagation, and failover behavior
• Generate certification evidence and test reports for IEEE 1547-2018, UL 1741-SB, and customer specific factory and site acceptance tests (FAT/SAT)
• Support commissioning and field issues into regression cases

Minimum Qualifications

• BS/MS in Electrical / Power / Control Systems Engineering; 4+ years (Senior: 7+) in controls testing, HIL, or commissioning
• Hands-on with RTDS and/or OPAL-RT, including model build, I/O mapping, and amplifier interfaces (PHIL is a plus)
• Strong Python scripting; experience with one automation framework (pytest, robot, TestStand, LabVIEW)
• Working knowledge of Modbus TCP, IEC 61850 (GOOSE/MMS), DNP3 — and how to inject/simulate them in test
• Familiarity with UL 1741-SB, IEEE 1547-2018, and FAT/SAT processes for energy storage and microgrids

Preferred Qualifications

• Cybersecurity test exposure (fuzzing protocols, IEC 62443 verification)
• Field commissioning experience on BESS / microgrid / utility-scale projects

Benefit at Delta Electronics Americas

Life at Delta

EEO Statement

Delta Electronics Americas is an Equal Opportunity Employer and is committed to compliance with all applicable federal, state, and local laws. Delta Electronics America is committed to fostering a diverse, inclusive, and respectful workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, age, marital status, national origin, disability, veteran status, or any other protected characteristic.

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