Ironworker Helper II

Clean Energy & Infrastructure Services; Rapid City (SD); On-site; USD 30,000 - 39,000; Full time

Benefits offered by this job

401(k) with company match

Medical, Dental, Vision insurance

Disability & Life insurance

Employee Assistance Program

Job summary

MasTec Industrial in Rapid City, SD is seeking an Ironworker Helper II to assist with the installation and alignment of structural-steel components. You will help set up hoisting equipment, position members, and help bolt or weld pieces under supervision.

The role emphasizes safety, toolbox participation, and basic math and measurement tasks, with opportunities to work across trades in a dynamic field environment.

Qualifications

• 6 months - 1 year related experience and/or training or equivalent combination of education and experience
• Minimum 6 months of experience in helper role
• Be knowledgeable of MIC Health and Safety programs and project specific regulations
• When on-site, actively participate in toolbox meetings with crews and subcontractors
• Read and interpret safety rules, operating and maintenance instructions and procedure manuals
• Ability to perform basic arithmetic for weights and measurements

Responsibilities

• Read and interpret measuring tools such as tape measure or framing square to perform tasks accurately
• Assist in setting up hoisting equipment for raising and placing structural-steel members
• Assist in fastening steel members to hoist cables or slings
• Guide and position members using tag lines and hand tools
• Bolt or weld structural members into final position as directed
• Cut and weld steel members for modifications using oxyacetylene or welding equipment
• Work with other crafts as directed by supervision
• Maintain safety and follow all procedures on site

Skills

Safety awareness

Reading blueprints/drawings

Math basics

Manual dexterity

Tools

Oxyacetylene torch

Welding equipment

Hoisting equipment

Hand tools

Job description

United States, South Dakota, Rapid City

Sep 08, 2026

Ironworker Helper II

Job Locations

US-SD-Rapid City

Requisition ID

2026-68839

# of Openings

1

Candidate Search Category (Portal Searching)

Construction

Service Line (UKG) : Name

MPC-MasTec Industrial

Company Overview

MasTec Industrial, along with sister companies Casey Industrial and Phoenix Industrial, has served the power industry since 1947. We support utilities, developers, and municipalities with EPC services and project development expertise.

Ranked by ENR as the #1 Power Contractor, we specialize in natural gas, oil, biomass, and waste-to-energy projects. Our team brings over 30 years of experience in utility and industrial systems, including simple and combined cycle plants and reciprocating engines.

We're committed to delivering quality, safety, and value at every project phase, from concept to operations. At MasTec Industrial, we invest in top talent and foster a respectful, inclusive environment where employees thrive as innovative leaders.

The MasTec Industrial operating group is part of the MasTec Clean Energy & Infrastructure (CE&I) business segment. The CE&I segment generates over $4.5 billion in annual revenue, providing construction services across our renewables, industrial, infrastructure, and general building operating groups. Sustainability and safety are foundational to our culture and influence everything we do.

MasTec, a minority-owned Fortune 500 company, has shaped the construction industry for more than 90 years. With over 35,000 employees and 400 offices nationwide, we provide flexibility and career growth in dynamic work environments.

POSITION SUMMARY

Raises, modifies, places and bolts or welds structural‑steel members to form completed structures or structure frameworks, working as member of crew.

Responsibilities

• Read and interpret measuring tools such as, tape measure, speed square, framing square...etc. In order to perform task accurately.
• Fully Understand Plant North and drawing directional.
• Assist in setting up hoisting equipment for raising and placing structural‑steel members.
• Assist in fastening steel members to cable of hoist, cable, slings or rope.
• Assist in guiding member, using tag line (rope). Pulls, pushes, or pries steel members into approximate position while member is supported by hoisting device.
• Assist in forcing members into final position, using turnbuckles, sleever bars, come alongs, jacks, and hand tools.
• Assist in aligning holes in member with corresponding holes in previously placed member by drifting drift pins or handle of wrench through holes. Align bolt holes with spud wrenches, sleever bars, bull pins and/or drift pins.
• Assist in bolting aligned members to keep them in position until they can be permanently bolted or welded in place.
• Assist in cutting and welding of steel members to make modifications using oxyacetylene torch, cut off wheels, porta bans and (arc) electric welding equipment.
• Work in other crafts at levels appropriate to training and skills as requested by project supervision. Must have the ability to take direction from a higher skilled worker or foreman.

Qualifications

• EDUCATION AND WORK EXPERIENCE REQUIREMENTS:
  • 6 months - 1 years related experience and/or training or equivalent combination of education and experience
  • Minimum 6 months of experience in helper role
• KNOWLEDGE, SKILLS, AND ABILITIES REQUIRED:
  • Be knowledgeable of MIC Health and Safety programs and project specific regulations.
  • When on‑site, actively participate in daily toolbox meetings with crews and subcontractors.
  • Set a personal example of safe behavior.
  • Read and interpret documents such as safety rules, operating and maintenance instructions and procedure manuals
  • Add and subtract two-digit numbers, multiply and divide with 10's and 100's and ability to perform these operations using units weight measurement and volume
  • Common sense understanding to carry out instructions furnished in written or oral form
  • Ability to work within precise standards of accuracy and follow set procedures and standards
  • Other may duties may be assigned

PHYSICAL DEMANDS

• Work up to a 12‑hour shift doing hard physical work in varying temperatures and outside conditions.
• May need to maintain physical strength and stamina; Use arms, hands, and legs fully; Push, pull, and frequently lift and carry objects weighing up to 50 pounds; and stoop, kneel, balance, crouch, crawl, and climb to perform job tasks.
• Stamina to perform this task repetitively and continuously for several hour intervals.
• Uncontrolled environmental conditions: Constant change in weather and site conditions.
• This work environment may involve moderate exposure to unusual elements, such as extreme temperatures, dirt, dust, fumes, smoke, unpleasant odors and/or loud noises.
• Ability to wear personal protective equipment is required (including but not limited to‑ safety toed shoes, gloves, safety glasses, hearing protection, hardhat, vest, etc.).
• Move in and around confined, cluttered, and uneven areas.
• May need to work at heights and must be able to abide by all safety and fall‑protection requirements; must be able to wear and utilize all safety equipment required for work at heights.
• Evaluate information based on measurable standards; and see details in objects or drawings and recognize slight differences in shapes and shadings.
• Visualize objects in three dimensions from drawings.
• Keep good balance and work at heights.
• See well (either naturally or with correction).
• Hear well (either naturally or with correction.)
• Coordinate the use of eyes, hands, and feet.

What's in it for you

Financial Wellbeing

• Compensation $25.00 / hour,commensurate with experience
• Competitive pay with ongoing performance review and merit increase
• 401(k) with company match & Employee Stock Purchase Plan (ESPP)
• Flexible spending account (Healthcare & Dependent care)

Health & Wellness

• Medical, Dental, and Vision insurance (plan choice) - coverage for spouse, domestic partner, and children
• Diabetes Management, Telehealth Coverage, Prescription Drug Plan, Pet Insurance
• Employee Assistance Program

Planning for the Unexpected

• Short and long‑term disability, life insurance, and accidental death & dismemberment
• Voluntary life insurance, accident, critical illness, hospital indemnity coverage
• Emergency Travel Assistance Program
• Group legal plan

Position may be subject to pre‑employment screening, which may include background check and drug testing. Accessibility: If you need accommodation as part of the employment process, contact [e-mail].

MasTec, Inc. is an Equal Employment Opportunity Employer. The Company's policy is not to unlawfully discriminate against any applicant or employee on the basis of race, color, sex, sexual orientation, gender identity, religion, national origin, age, disability, genetic information, military status, or any other consideration made unlawful by applicable federal, state, or local laws. The Company also prohibits harassment of applicants and employees based on any of these protected categories. It is also MasTec's policy to comply with all applicable state, federal and local laws respecting consideration of unemployment status in making hiring decisions.

MasTec Clean Energy & Infrastructure and our subsidiaries do not work with any third‑party recruiters or agencies without a valid signed agreement and partnership with the Corporate Talent Acquisition Team.

Service Line

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