Senior Transmission Line Engineer
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Senior Transmission Line Engineer
80,000–150,000 / Year
Location
Sioux Falls, SD
Experience
Senior
Posted
Jul 10, 2026
Apply by
August 9, 2026
Applicants
0
Early applicantEasy applyFull-timeWork from Office
Job Description
Founded in 1973, [ISG](https://www.isginc.com/about-us) 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](https://www.isginc.com/energy-business-unit#Transmission-Line) 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](https://www.isginc.com/employee-ownership) 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](https://www.isginc.com/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 stakeholders
- Demonstrates 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
Key Responsibilities
- Design transmission line routes, configurations, and structures for systems 25kV and above
- Perform structural analysis, sag-tension calculations, and clearance checks
- Develop detailed design packages including drawings and specifications for bidding and construction
- Partner with multidisciplinary teams to deliver transmission projects
- Conduct site visits to evaluate terrain and identify design constraints
- Support project planning with estimates, schedules, and procurement strategies
- Provide construction-phase support and address design changes
- Engage with clients through regular meetings and technical updates
Requirements
- Bachelor's degree in Civil or Electrical Engineering
Skills Required
Transmission line designStructural analysisSag-tension calculationsPLS-CADDAutoCADNESCIEEEASCEHigh-voltage systemsCommunicationProblem solvingAnalytical skillsIntegrityAccountabilityIndependent judgmentRelationship building
Benefits
- Medical, dental, and vision insurance
- Paid time off
- Paid holidays
- 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
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