Substation Engineer I, II, III

We are looking for talented individuals who are passionate about making an impact in the company and the community. Apply now and become part of the dynamic energy industry!

This is an exciting opportunity to join a collaborative engineering team supporting critical substation projects in Tucson, Arizona. In this role, you'll have handson involvement across the full project lifecycle-from early design through construction and energization-while working closely with experienced engineers, field crews, and project partners. If you enjoy solving complex power system challenges, taking ownership of your work, and seeing your designs built and energized in the field, this role offers meaningful impact and room to grow.

What You Will Do

• Lead substation design projects from concept through energization across voltage levels up to 500kV

• Develop physical layouts, equipment specifications, wiring, and construction drawing packages

• Serve as project engineer, managing scope, schedule, budget, and coordination with internal teams

• Evaluate vendors, materials, and factory acceptance testing to ensure reliability and value

• Collaborate closely with Protection, Civil, Transmission, and Construction teams

• Support commissioning, troubleshooting, and technical decisionmaking in the field

What You Bring

• B.S. in Electrical Engineering with power systems focus and several years of substation design experience

• Proven experience acting as technical or project lead on substation projects

• Understanding of IEEE/ANSI standards and highvoltage equipment (distribution through 500kV)

• Ability to develop specifications, cost estimates, and construction sequences

• Confidence leading meetings, coordinating crossfunctional teams, and mentoring others

• Selfstarter mindset with strong analytical, communication, and timemanagement skills

Position Description

Creates engineering designs, construction drawing packages for new and existing substation related projects, and related specifications for projects in the assigned engineering group. Performs engineering studies, design calculations and evaluates alternative designs or processes related to substation and other facilities and substation standards. Specifies material and equipment required for assigned projects and assists in the evaluation of suppliers and products. Acts as a project engineer/manager for assigned projects.

Position-Related Responsibilities

• Develops designs and evaluates possible alternatives to meet both major and minor substation project requirements. Assigned projects may be at voltage levels ranging from 4kV up to 500kV. The primary design responsibilities encompass physical layout of the substations and associated equipment and facilities, major equipment and overall material specification and ordering, equipment factory acceptance, substation design and calculations for power equipment and facilities, wiring and cable design, commissioning checkout creation, and functional checkout. Works closely with the project manager on overall project management from inception to energizing.
• Develops detailed design specifications appropriate for the use in compiling material lists, procurement activities for equipment, materials and service required for project completion.
• NERC Facility rating tracking.
• Works closely on all projects with engineers from the Protection, Communications, Automation and Metering (PCAM) Engineering section who develop all protection, control schematic drawings and do all communication and automation equipment related design.
• Works closely with Civil, Transmission and Structural Engineers to determine physical locations of equipment and proper sizing of structures and site design and grading.
• Evaluates, from an engineering standpoint, vendors, manufacturers, equipment and/or components available to meet project specifications and in conjunction with the Materials Procurement Department recommends awards that optimize cost and reliability.
• Provides budgetary estimates of projects for departmental or interdepartmental incorporation into the Capital Budget.
• Develops and monitors work progress on project schedules to assure proper coordination of events during the design, construction, testing and energizing phases of a project.
• Initiates job tasks (work orders) and tracks expenditures as may be required to complete Capital Budget project assignments.
• Leads formal and informal meetings concerning assigned projects and is able to communicate effectively with all levels of personnel both in the office and field crews.
• Assists with departmental and interdepartmental training to assure proper installation, operation and/or maintenance of substation equipment when requested.
• Assigns, directs and reviews the work of assigned engineers and/or other employees associated with an assignment. Consults on problems of a technical nature encountered during various work assignments.
• Reports to the section Engineering Supervisor or Superintendent and performs other assignments as requested.
• This position may provide services to affiliates of the Company subject to the UNS Energy Code of Conduct and the related Policies and Procedures.

Knowledge, Skills & Abilities

(Equivalent combination of education and experience will be considered.)

Level

Engineer I

Description

Will have primary responsibility for small modification or revision projects.

Will assist more experienced engineers in large projects, standards creation or process and procedure creation.

Will assist in the review and revision of material and design standards.

Minimum Qualifications

B.S. degree in Electrical Engineering with an emphasis in power related classes.

Less than two (2) years professional experience in an engineering role.

Level

Engineer II

Description

Will have primary responsibility for small to medium sized projects and will assist more experienced engineers in large projects. May require close supervision on new aspects of assignments.

Act as the project engineer for assigned projects.

Create standards and process or procedures as needed or requested.

May be assigned to perform technical studies as needed.

May have several projects assigned at the same time.

Works well with personnel from Construction, Field Technicians, Procurement, Project Management, and Engineers from various disciplines.

Minimum Qualifications

Minimum qualifications of Engineer I with two or more years of substation design and project engineering.

Ability to write and produce the sequence of construction process.

Ability to estimate cost of various types of construction and installation

Strong analytical capabilities and ability to closely supervise new aspects of assignments.

Act as the technical project lead for assigned projects

The skillset to develop specifications for construction of various substation projects

Level

Engineer III

Description

Requires moderate supervision and technical assistance in project assignments.

Will have primary responsibility for projects small to large and assigned to perform technical studies as needed.

Act as the project engineer for assigned projects.

May have several projects or studies assigned at the same time.

May assist other engineers in large projects.

Requires technical guidance and supervision on non-standard assignments.

Works well with personnel from Construction, Field Technicians, Procurement, Project Management, and Engineers from various disciplines.

Comfortable with presenting departmental training material in front of others.

Can represent TEP when meeting with other companies or organizations as a technical lead.

Has successfully completed Fundamentals of Engineering, F.E. exam and registration.

Minimum Qualifications

Minimum qualifications of Engineer II with four years of substation design and project engineering.

Is a self-starter and has developed good time management skills, completing all assignments on time.

Has developed good leadership skills and is fully comfortable leading meetings and speaking in front of others.

Factory acceptance testing review and approval of results as a company technical representative.

Familiarity with material for voltages ranging from Distribution to 500kV.

Develops procedure(s) for various functions within department's range of responsibilities with oversight.

Familiar and demonstrated use of IEEE and ANSI standards associated with job function.

Develop facility studies for interconnection and operation customers.

Ability to evaluate and implement changes that result in operating at a higher rating or voltage.

Scope document creation for budget and schedule creations.

Interpret Planning memo requirements for the development of project scope of work with technical, economic and sequencing of project all considered for an optimized design.

Requires technical guidance and supervision on non-standard assignments projects.