Senior Electrical Engineer - Substations - Power and Energy

About this role

Who We Are

Atwell, LLC is a bold leader in the consulting, engineering, and construction services industry, delivering a broad range of creative solutions to clients in the real estate & land development, and energy markets. We have a strong national presence and a diverse, award-winning project portfolio. Atwell is a privately owned company, with 2,000+ passionate team members across 75+ locations and growing!

Atwell, LLC is a proud recipient of the following 2025 awards:

• Ten consecutive years in a row as a “Best Place to Work” by Zweig Group (#11)

• Recognized as #70 in the ENR Top 500 Design Firms, ranked in every region

• Recognized in Crain's “Fast 50” as one of the fastest-growing companies (#14)

• Recognized as the 2025 ENR Design Firm of the year for the Southeastern US

Atwell is seeking a Substation Engineer to join our growing Power & Energy team. We are a full-service consulting firm supporting the design and execution of power generation and power delivery systems across a broad range of markets, including utility-scale wind, solar, BESS, substations, transmission, and distribution infrastructure.

This role offers the opportunity to support impactful utility and renewable energy projects, work across multi-disciplinary teams, and contribute to both and/or substation physical design and protection & controls engineering.

What You’ll Do

• Support the design and engineering of high-voltage substations for utility, renewable, and power delivery projects

• Contribute to both physical substation design and Protection & Controls (P&C) engineering packages

• Lead or support engineering tasks from project kickoff through IFC/design package completion

• Coordinate closely with civil, structural, SCADA, relay, and project management teams to deliver integrated solutions

• Prepare technical deliverables including one-lines, three-lines, schematics, wiring diagrams, panel layouts, grounding plans, conduit/raceway layouts, cable schedules, bills of material, specifications, reports, and client-facing documents

• Provide engineering support during procurement, construction, commissioning, and startup phases

• Occasionally travel for field walkdowns, client meetings, factory acceptance testing, or construction support

Focus Areas

Physical Design

• Develop and support substation physical layout and design packages for high-voltage projects

• Prepare or review:

• General arrangement drawings

• Plan and elevation drawings

• Grounding layouts

• Conduit and cable routing plans

• Control building layouts

• Equipment connection details

• Foundation and equipment interface coordination

• Coordinate major equipment layouts including transformers, breakers, switches, bus systems, CCVTs/PTs, CTs, panels, batteries, and other station equipment

• Work closely with civil and structural teams to align grading, foundations, trenching, and equipment placement

• Support development of material lists, specifications, and installation details

Protection & Controls (P&C)

• Develop and support P&C design packages including:

• One-line and three-line diagrams

• AC/DC schematics

• Wiring diagrams

• Relay panel layouts

• Interconnection diagrams

• Communication diagrams

• SCADA point lists

• Perform engineering calculations such as battery sizing, voltage drop, conduit fill, and cable sizing

• Support relay setting development, protection philosophies, and coordination with OEMs and system…