Validation Engineer – SST Solutions

Delta Electronics Americas; United States; On-site; USD 85,000 - 110,000; Full time

Job summary

Delta Electronics Americas is seeking a Validation Engineer to plan and execute system-level validation activities for Solid-State Transformer (SST) and microgrid solutions. The ideal candidate has a Bachelor's degree in Electrical Engineering and 3+ years of experience in system validation for power systems. Responsibilities include developing validation plans, executing tests, and collaborating with engineering teams. The role ensures products meet all functional and performance requirements in various environments.

Qualifications

• 3+ years of experience in system validation, verification, or test engineering for power or energy systems.
• Strong understanding of grid‑connected and islanded operation.
• Experience working with simulation, HIL, or laboratory validation environments.

Responsibilities

• Develop validation plans and strategies for SST and microgrid products.
• Translate system requirements into clear validation test cases.
• Execute and coordinate validation activities across multiple platforms.

Skills

Power electronics and inverter‑based systems

System validation

Analytical and root‑cause problem‑solving

Education

Bachelor’s degree in Electrical Engineering or related field

Tools

HIL platforms (e.g., RTDS)

MATLAB/Simulink

Job description

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 centres and manufacturing facilities spread over close to 200 locations across five continents. Delta has 158 sales offices, 72 R&D centres 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.

About the role:

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 Validation Engineer is responsible for planning, executing, and owning system‑level validation activities for Solid‑State Transformer (SST) and microgrid solutions. This role ensures that products meet functional, performance, reliability, and grid‑interaction requirements across simulation, HIL, laboratory, and early field environments.

The Validation Engineer acts as the bridge between design intent and real‑world behavior, working closely with simulation, HIL, controls, hardware, application, and standards teams to verify that system requirements are correctly implemented and robust under normal, abnormal, and fault conditions.

Key responsibilities:

• Develop validation plans and strategies for SST and microgrid products across development stages.
• Translate system, functional, and grid‑interaction requirements into clear validation test cases and acceptance criteria.
• Define validation coverage across:
• Grid‑connected operation
• Islanded microgrid operation
• Mode transitions and recovery
• Abnormal and fault conditions
• Execute and coordinate validation activities across multiple platforms, including:
• Offline simulation (with simulation engineers)
• Laboratory and hardware‑based testing
• Ensure consistency and traceability of validation results across simulation, HIL, and hardware.

Functional & Performance Validation

• Validate system behaviour related to:
• Voltage, current, and power regulation
• Dynamic response and transient performance
• Load changes and operating envelope limits
• Verify system behaviour against defined requirements and operating scenarios.

Fault, Protection & Abnormal Condition Validation

• Support validation of:
• Fault detection and protective actions
• Recovery and reconnection behaviour
• Work with HIL and protection teams to validate:
• Timing, sequencing, and coordination of protective actions
• Ensure system behaviour is predictable and safe under faulted and stressed conditions.

Standards & Requirement Compliance Support

• Support validation activities aligned with US interconnection and grid expectations, including:
• IEEE 1547 / 1547.1 (as applicable)
• Utility interconnection and operational requirements
• Provide validation evidence to support:
• Certification readiness
• Utility technical reviews
• Customer acceptance

Issue Tracking & Cross‑Functional Collaboration

• Identify, document, and track validation issues and anomalies.
• Work closely with:
• Controls and firmware engineers to diagnose behaviour
• Simulation and HIL engineers to reproduce issues
• Hardware teams to correlate lab and system‑level results
• Support root‑cause analysis and verification of corrective actions.

Documentation & Reporting

• Maintain clear and structured validation documentation, including:
• Validation plans and test procedures
• Test results and reports
• Communicate validation status, risks, and findings to technical stakeholders.

Minimum Qualifications

Bachelor’s degree in Electrical Engineering, Power Systems, Power Electronics, or related field.

3+ years of experience in system validation, verification, or test engineering for power or energy systems.

Strong understanding of:

• Power electronics and inverter‑based systems
• Grid‑connected and islanded operation
• Power system dynamics and transient behaviour

Experience working with simulation, HIL, or laboratory validation environments.

Ability to translate high‑level requirements into executable validation activities.

Preferred Qualifications

Master’s degree in Electrical Engineering or related discipline.

Experience validating:

• SSTs, MV/LV converters, or advanced power conversion systems
• Microgrids or distribution‑level power systems

Familiarity with

• HIL platforms (e.g., RTDS)
• MATLAB/Simulink or EMT‑based simulation tools
• Protection concepts and fault response of inverter‑based systems

Experience supporting:

• Certification or interconnection readiness activities

Strong analytical and root‑cause problem‑solving experience.