Senior Electrical Design Engineer

Location:

Headquarter office (Old Saybrook, CT) preferred; hybrid and remote work considered

Telyon is seeking a Senior Electrical Design Engineer to help lead the technical design and engineering of our Commercial & Industrial (C&I) solar and energy storage projects. This role will be a key technical authority within the organization, responsible for ensuring systems are optimized for constructability, performance, code compliance, and long-term asset value. The Senior Design Engineer will report directly to the Director of Engineering Services, and work closely with Pre-Construction, Project Management, and Construction to deliver bankable, build-ready designs that support Telyon’s growth.

• Lead the full engineering design of C&I solar PV and battery energy storage (BESS) systems from early-stage feasibility through Issued-For-Construction (IFC) drawings.
• Develop and direct system layout, electrical design, and equipment selection to maximize energy production, reliability, and project economics.
• Produce and review detailed electrical and structural drawings including site plans, single-line diagrams, stringing, grounding, and interconnection layouts.
• Perform and oversee energy modeling, system sizing, voltage drop, short-circuit, and equipment loading calculations.
• Develop and maintain standardized design criteria, templates, and engineering best practices to improve quality, speed, and scalability.
• Serve as the technical lead during project handoffs between Development, Pre-Construction, and Construction.
• Manage outside engineering support including drawing review and value engineering.
• Support interconnection applications, utility coordination, and AHJ permitting through accurate, code-compliant designs.
• Review EPC, equipment, and subcontractor submittals to ensure compliance with design intent and technical standards.
• Provide engineering support during construction, including RFIs, field changes, and as-built documentation.
• Collaborate with the Battery and Finance teams to ensure systems are designed to meet both technical and financial performance targets.
• Mentor more junior engineers and designers, elevating the technical strength of the engineering team.

• Bachelor’s degree in Electrical Engineering, Mechanical Engineering, or a related field.
• 5+ years of experience designing and engineering Commercial & Industrial solar PV systems.
• Deep knowledge of NEC, utility interconnection standards, and AHJ permitting requirements.
• Strong experience with rooftop, ground-mount, and carport C&I solar designs.
• Experience designing or integrating battery energy storage systems (BESS) strongly preferred.
• Proficiency with Helioscope, Pro Core, PVsyst, AutoCAD, and related solar design tools.
• Ability to review and interpret construction drawings, utility requirements, and equipment datasheets.
• Strong understanding of constructability, cost drivers, and schedule impacts in C&I solar projects.
• Comfortable working cross-functionally with Development, Pre-Construction, Finance, and Construction teams.

These duties and responsibilities are intended to describe the general nature and scope of work expected to be performed by this position. This is not an exhaustive list of duties. Other responsibilities can and will be assigned based on the growth and direction of the business.

Telyon is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, sex, national origin, age, disability, or any other characteristic protected by law. All qualified applicants will receive consideration for employment without regard to any of these characteristics. We encourage individuals from diverse backgrounds to apply.