Senior Transmission Line Engineer

Senior Transmission Line Engineer

Department: Power

Employment Type: Full Time

Location: Sioux Falls, SD

Compensation: $80,000 - $150,000 / year

Description

Founded in 1973, ISG is a multi‑disciplinary, employee‑owned firm providing architecture, engineering, environmental, and planning services to communities across the nation. Guided by our mission: simplify solutions and passionately design the future; we partner with clients to turn complex challenges into meaningful, lasting impact.

We are growing and looking to add a Transmission Line Engineer to support our Transmission Line team within our Power Group. In this role, you’ll design and deliver overhead transmission projects from concept through construction, playing a key role in shaping the infrastructure that powers communities. Working alongside multidisciplinary teams and leveraging tools like PLS-CADD and AutoCAD, you’ll apply your expertise in high-voltage systems to solve complex challenges and deliver reliable, innovative solutions.

ISG employee owners are motivated by a shared goal to stretch the limits of great design and positively influence each other, our clients, and the communities we serve. Within our Energy Business Unit, ISG’s Power Group plays a vital role in delivering resilient infrastructure solutions nationwide.

Essential Duties

• Design transmission line routes, configurations, and structures to meet client specifications and regulatory standards for systems 25kV and above
• Perform structural analysis, sag‑tension calculations, and clearance checks using industry‑standard tools to ensure safe, efficient, and compliant designs
• Develop detailed design packages, including drawings and specifications for bidding, permitting, and construction
• Partner with multidisciplinary teams—ROW, environmental, and project management—to successfully deliver transmission projects
• Conduct site visits to evaluate terrain, identify constraints, and recommend practical design solutions
• Support project planning by assisting with estimates, schedules, and procurement strategies
• Provide construction‑phase support, addressing design changes and ensuring alignment with project requirements and timelines
• Maintain current knowledge of client standards, industry codes, and best practices
• Engage with clients through regular meetings, providing updates and technical insight

Skills, Knowledge and Expertise

• Bachelor’s degree in Civil or Electrical Engineering
• 5-15+ years of experience in the design and analysis of transmission lines (25kV and above)
• Professional Engineer (PE) license or ability to obtain preferred
• Commitment to staying current with industry trends, technologies, and best practices through ongoing learning
• Strong ability to build and maintain effective relationships with team members, clients, and stakeholdersDemonstrates integrity, accountability, and sound independent judgment
• Solid understanding of electrical and structural engineering principles related to high-voltage systems
• Knowledge of industry standards and codes such as NESC, IEEE, and ASCE
• Proven analytical and problem‑solving skills to address complex technical challenges
• Clear and effective verbal and written communication skills
• Proficiency in design software including PLS-CADD, PLS-POLE, FAD Tools, and AutoCAD
• Ability to manage assigned work independently with appropriate guidance

ISG Employee Owner Benefits

• Medical, dental, and vision
• Paid time off, pro‑rated amount available on your start date
• Paid holidays and paid volunteer time
• Paid parental leave
• Bi‑annual profit sharing
• Employee Ownership Stock Plan (ESOP)
• 401K retirement plan
• Life insurance
• HSA and FSA options
• Bereavement leave
• Supplemental voluntary benefits
• Short term and long‑term disability
• Parking reimbursement, varies on office location