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Mainline Operator Jobs in Illinois (NOW HIRING)

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Mainline Operator information

What skills and qualifications are needed to be a mainline operator?

To thrive as a Mainline Operator, you need a solid understanding of machinery operation, production processes, and often a high school diploma or equivalent. Familiarity with industrial control systems, safety protocols, and sometimes certifications such as OSHA are typically required. Attention to detail, problem-solving abilities, and strong teamwork skills help operators excel in maintaining production flow and safety. These skills ensure efficient, safe, and continuous operation of mainline equipment, reducing downtime and supporting production targets.

What are the most common challenges faced by a mainline operator, and how can they be addressed?

Mainline Operators often encounter challenges such as maintaining consistent production flow, troubleshooting equipment malfunctions, and adhering to strict safety protocols. These issues can be addressed by staying up-to-date with equipment training, actively communicating with maintenance and quality teams, and following established standard operating procedures. Proactively identifying potential issues and collaborating with team members can help minimize downtime and ensure a smooth operation.

What is the difference between Mainline Operator vs Pump Operator?

AspectMainline OperatorPump Operator
CredentialsHigh school diploma, safety training, possibly CDLHigh school diploma, safety training, often CDL
Work EnvironmentPipeline, construction sites, industrial facilitiesRefineries, pipelines, industrial plants
Industry UsageOil & gas, pipeline transportationOil & gas, chemical plants, refineries
Job FocusMonitoring and operating main pipeline systemsOperating pumps to control fluid flow

While both roles involve working with pipelines and require safety training, Mainline Operators focus on managing entire pipeline systems, whereas Pump Operators specialize in operating pumps to control fluid movement within those systems. Understanding these differences helps in choosing the right career path or job search focus.

What is a mainline operator?

Mainline Operators are professionals responsible for operating and monitoring equipment along main transportation or production lines, such as pipelines, railway lines, or manufacturing conveyors. They ensure the smooth and safe flow of materials or products, perform routine checks, and respond to any issues that arise during operation. Mainline Operators may also be involved in maintaining records, coordinating with other team members, and following safety protocols to prevent accidents or disruptions. This role is critical in industries like oil and gas, utilities, manufacturing, and transportation.
What are popular job titles related to Mainline Operator jobs in Illinois? For Mainline Operator jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Mainline Operator jobs in Illinois look for? The top searched job categories for Mainline Operator jobs in Illinois are:
Infographic showing various Mainline Operator job openings in Illinois as of August 2026, with employment types broken down into 51% Full Time, 47% Part Time, 1% Contract, and 1% Nights. Highlights an 99% Physical, and 1% Remote job distribution.

Director of Preconstruction

Ragnar Benson, LLC

Joliet, IL • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 23 days ago


Job description

Overview:

The Director of Preconstruction will be responsible for the management of the estimating staff, assigning resources to the multiple estimating pursuits, coordinating pre-bid attendance as needed, bid management, cost databases, estimating software, implementing/improving estimating practices. This position will be officed in Rockford, IL. Ragnar Benson specializes in Port, Intermodal, Rail and Industrial projects nationwide.

Company Overview:

Ragnar Benson Construction is a full-service general contractor specializing in commuter rail, intermodal facilities, and ports. With almost 40 years of experience in the railway industry, we offer various delivery models, including general contracting, construction management, preconstruction, and design-build services. In addition, we specialize in constructing intermodal facilities, classification yards, mechanical repair facilities, fueling facilities, automobile marshaling terminals, and mainline capacity improvements. Focusing on innovation, safety, and environmentally-responsible construction, Ragnar Benson delivers quality work and service.

Ragnar Benson 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. Join one of the largest construction firms in the country (Engineering News-Record [ENR]: #1 in Power, #17 Top 50 Domestic Heavy Contractors, #20 Transportation Contractor).

Responsibilities:
  •  Perform functions inherent to a manager/supervisory position through directing, planning, organizing, and coordinating.
  •  Conduct/attend project meetings as needed to communicate project requirements
  •  Establish timelines and estimating goals for effective and timely submittals.
  •  Ensure effective communication and collaboration on estimates between all disciplines and parties
  •  Review/Approve bids, specifications, drawings and the contract to proactively solve potential issues.
  •  Informs preconstruction staff of project requirements and owner directives and develops a plan to meet stated goals.
  •  Responsible for the management and continued development of the estimating department.
  •  Review and approve data submitted by staff including proposals, presentations, and contract negotiations
  •  Provide monthly report of Key Performance Indicators (KPI) which includes types of estimates and values of estimates being produced.
  •  Prepare post bid budget and job setup activity codes for handoff to cost control department for EPR interface
Qualifications:
  •  10+ years of estimating construction projects.
  •  Proven management experience, a history of leading, teaching, developing, and mentoring others successfully.
  •  Demonstrates solid presentation skills and verbal/written communication skills.
  •  Possess an understanding of contractual requirements, conceptual estimating, design drawings and project specifications.
  •  B.S. in Construction Management, Engineering, or equivalent progressive work experience.
  •  Proven hands-on experience using Microsoft Project, Primavera P6 or Bid2Win or similar industry software

What's in it for you:

Financial Wellbeing

  • Ongoing performance reviews and merit increases
  • 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

Family & Lifestyle

  • Paid Time Off, Paid Holidays, Bereavement Leave
  • Military Leave, including Differential Pay and Benefits Continuation
  • 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 ceicareers@mastec.com. Due to the high volume of applications received, we are unable to respond to individual requests regarding application status. Please log into your candidate profile for up-to-date information. 

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.

Disclaimer: MasTec and our Subsidiaries will never ask prospective employees for any form of payment or money transfer as part of job application or onboarding. We do not ask prospective employees for information about credit cards or personal passwords, and it does not require applicants to purchase equipment or software. Ensure that all recruiter email addresses end in @mastec.com or @talent.icims.com. If you suspect you are the target of a scam, we advise you to contact your local law enforcement agency and report fraud at https://reportfraud.ftc.gov/.

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