Senior Electrical Design Engineer - Islanded Microgrids

TAR; Austin (TX); Hybrid; USD 90,000 - 150,000; Full time

Job summary

TAR in Austin seeks a Senior Electrical Design Engineer to own the electrical design documentation for islanded BTM microgrids, including SLDs, wiring schedules, and system schematics. You will size conductors, OCPD, and switchgear across MV, LV, and DC collection, aligning with the Engineer of Record requirements.

Role requires 3+ years in utility-scale power-systems design, strong CAD skills, and knowledge of NEC/IEEE standards.

Qualifications

• BSEE, power systems, or related STEM discipline.
• 3+ years in utility-scale solar, BESS, or power-systems design, with hands-on ownership of SLDs/three-lines and equipment sizing.
• Proficiency in CAD (AutoCAD LT, Electrical or similar) and a 3D modeling CAD software (SketchUp or other).
• Strong understanding of NEC, NESC, IEEE standards; working knowledge of UL 1741-SB, UL 9540/9540A, and NFPA 855 for PV and energy-storage integration.
• Conductor, OCPD, disconnect, and switchgear sizing across DC, LV, and MV (34.5 kV class).
• Experience producing basis-of-design and working to or with an Engineer of Record.
• Extreme attention to detail with a bias for speed and rapid iteration.

Responsibilities

• Create and maintain layouts, electrical single-line and three-line diagrams, wiring schedules, and system schematics for islanded BTM microgrids.
• Size conductors, OCPD, disconnects, and switchgear across MV/LV and DC collection in compliance with NEC, UL 1741-SB, UL 9540, and NFPA 855.
• Produce the basis-of-design and technical inputs the Engineer of Record requires, and coordinate the EOR's review and stamp.
• Develop equipment layouts and DC collection designs (string/harness, combiner, inverter skid, MV collector) for ground-mount PV + BESS.
• Maintain the drawing set through revisions from design through IFC, keeping procurement, the EOR, and field execution working from one source of truth.
• Support OEM technical evaluation (inverter skids, BESS, MV switchgear) with the electrical inputs needed for selection and PO.
• Track FEOC-compliant equipment options where ITC eligibility is at stake.

Skills

BSEE

Power-systems design

AutoCAD

SketchUp

NEC/IEEE/NESC

EOR coordination

Education

BSEE or related STEM

Tools

AutoCAD LT

SketchUp

Job description

TAR in Austin seeks a Senior Electrical Design Engineer to own the electrical design documentation for islanded BTM microgrids, including SLDs, wiring schedules, and system schematics. You will size conductors, OCPD, and switchgear across MV, LV, and DC collection, aligning with the Engineer of Record requirements.

Role requires 3+ years in utility-scale power-systems design, strong CAD skills, and knowledge of NEC/IEEE standards.