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Senior Transmission Line Engineer

ISG

On-site
Sioux Falls, SD
Full-time
Senior
5+ yrs
Salary not listedPosted 4w ago

Real job — pulled straight from ISG’s careers page · Verified July 15, 2026 · No reposts.

Job description

ISG is hiring a Senior Transmission Line Engineer — a full-time, based in Sioux Falls, SD role. Apply directly on ISG's careers page below.

Senior Transmission Line Engineer

Department: Power

Employment Type: Full Time

Location: Sioux Falls, South Dakota, Sioux Falls, SD

We are looking for a Transmission Line Engineer to support our Transmission Line Team within our Power Group. In this role, you will design 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, your expertise in high-voltage systems will help you solve complex challenges and deliver reliable, innovative solutions. 

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 for bidding, permitting, and construction.
  • Partner with ROW, environmental, and project management teams to successfully deliver transmission projects.
  • Conduct site visits to evaluate terrain, identify constraints, and recommend practical design solutions.
  • Assist with estimates, schedules, and procurement strategies.
  • Provide construction-phase support, to address design changes and ensure alignment with project requirements and timelines.
  • Maintain knowledge of client standards, current codes, and industry best practices.
  • Engage with clients through regular meetings, providing updates and technical insight.

Skills, Knowledge and Expertise

  • Bachelor degree in Civil or Electrical Engineering.
  • 5+ years of experience in the design and analysis of transmission lines (25kV and above).
  • Professional Engineer (PE) license or ability to obtain.
  • Solid understanding of electrical and structural engineering principles related to high-voltage systems.
  • Proficiency in design software including PLS-CADD, PLS-POLE, FAD Tools, and AutoCAD.
  • Knowledge of industry standards and codes such as NESC, IEEE, and ASCE.
  • Maintains working knowledge of changes to industry standards, technologies, and best practices.
  • Builds and maintains effective relationships with team members, clients, and stakeholders.
  • Demonstrates integrity, accountability, and sound independent judgment.
  • Proven analytical and problem-solving skills to address complex technical challenges.
  • Clear and effective verbal and written communication skills.
  • 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

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Frequently asked questions

What skills are required for Senior Transmission Line Engineer at ISG?

The required skills for Senior Transmission Line Engineer at ISG include: Civil Engineering, Electrical Engineering, AutoCAD.

What is the seniority level for Senior Transmission Line Engineer at ISG?

Senior Transmission Line Engineer at ISG is a Senior level position.

How do I apply for Senior Transmission Line Engineer at ISG?

You can view the full description and apply for Senior Transmission Line Engineer at ISG on EchoJobs: https://echojobs.io/job/isg-senior-transmission-line-engineer-power-rdsa8.