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Mainline Jobs in Washington (NOW HIRING)

Support grading, excavation, mainline pipe installation, processed water, milling, and paving operations by hauling materials as needed. * Load and unload materials while ensuring proper weight ...

Dump Truck Driver

Jessup, MD · On-site

$24 - $28/hr

Support grading, excavation, mainline pipe installation, processed water, milling, and paving operations by hauling materials as needed. * Load and unload materials while ensuring proper weight ...

Dump Truck Driver

Jessup, MD · On-site

$24 - $28/hr

Support grading, excavation, mainline pipe installation, processed water, milling, and paving operations by hauling materials as needed. * Load and unload materials while ensuring proper weight ...

Responsibilities Allan Myers is looking for a highly skilled and experienced Excavator Operator to join our Mainline Pipe Crew on heavy civil construction projects. The ideal candidate has at least ...

Support grading, excavation, mainline pipe installation, processed water, milling, and paving operations by hauling materials as needed. * Load and unload materials while ensuring proper weight ...

Support grading, excavation, mainline pipe installation, processed water, milling, and paving operations by hauling materials as needed. * Load and unload materials while ensuring proper weight ...

Cashier

Annapolis, MD · On-site

$11.75 - $15.75/hr

A Head Cashier will position Cashiers and support them by expediting price checks, approving Point of Sale transactions and markdowns for mainline registers, Self-Checkout, Returns, Pro Desk, Special ...

Cashier

Glen Burnie, MD · On-site

$11.50 - $15.75/hr

A Head Cashier will position Cashiers and support them by expediting price checks, approving Point of Sale transactions and markdowns for mainline registers, Self-Checkout, Returns, Pro Desk, Special ...

Cashier

Washington, DC

$13.25 - $18/hr

A Head Cashier will position Cashiers and support them by expediting price checks, approving Point of Sale transactions and markdowns for mainline registers, Self-Checkout, Returns, Pro Desk, Special ...

Cashier

Chantilly, VA · On-site

$12 - $16.50/hr

A Head Cashier will position Cashiers and support them by expediting price checks, approving Point of Sale transactions and markdowns for mainline registers, Self-Checkout, Returns, Pro Desk, Special ...

Cashier

Bowie, MD · On-site

$15.50 - $16.50/hr

A Head Cashier will position Cashiers and support them by expediting price checks, approving Point of Sale transactions and markdowns for mainline registers, Self-Checkout, Returns, Pro Desk, Special ...

Cashier

Manassas, VA · On-site

$11.75 - $16/hr

A Head Cashier will position Cashiers and support them by expediting price checks, approving Point of Sale transactions and markdowns for mainline registers, Self-Checkout, Returns, Pro Desk, Special ...

Cashier

Ellicott City, MD · On-site

$17 - $17.50/hr

A Head Cashier will position Cashiers and support them by expediting price checks, approving Point of Sale transactions and markdowns for mainline registers, Self-Checkout, Returns, Pro Desk, Special ...

Cashier

Upper Marlboro, MD · On-site

$15 - $16/hr

A Head Cashier will position Cashiers and support them by expediting price checks, approving Point of Sale transactions and markdowns for mainline registers, Self-Checkout, Returns, Pro Desk, Special ...

Cashier

Fairfax, VA · On-site

$12 - $16.25/hr

A Head Cashier will position Cashiers and support them by expediting price checks, approving Point of Sale transactions and markdowns for mainline registers, Self-Checkout, Returns, Pro Desk, Special ...

Cashier

Hyattsville, MD · On-site

$11.75 - $16/hr

A Head Cashier will position Cashiers and support them by expediting price checks, approving Point of Sale transactions and markdowns for mainline registers, Self-Checkout, Returns, Pro Desk, Special ...

Cashier

Chantilly, VA · On-site

$15 - $16/hr

A Head Cashier will position Cashiers and support them by expediting price checks, approving Point of Sale transactions and markdowns for mainline registers, Self-Checkout, Returns, Pro Desk, Special ...

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Showing results 1-20

Mainline information

What is a mainline?

A Mainline job typically refers to a role associated with the primary operations of a company, often in industries like railway, oil and gas, or telecommunications. In railways, it pertains to positions involved in the maintenance and operation of major train routes. In other industries, it can mean working on key infrastructure projects or networks. The responsibilities vary but usually involve ensuring smooth and efficient service along primary systems.

What does a typical workday look like for a mainline pipefitter?

On a typical day, a Mainline Pipefitter is involved in tasks such as preparing and aligning pipes, performing welding or joining operations, reading project plans, and inspecting pipeline sections for quality control. Work often takes place outdoors, requiring close collaboration with a construction or utility crew to install or repair main pipelines. Mainline Pipefitters regularly use specialized machinery and power tools, and must adhere strictly to safety guidelines throughout their shift. The work can be physically demanding and may involve travel to various job sites, but it provides hands-on problem-solving and the opportunity to contribute to vital infrastructure projects.

What are the key skills and qualifications needed to thrive in the mainline position, and why are they important?

To thrive as a Mainline Pipefitter (commonly referred to as 'Mainline' in the utility and pipeline industries), you need excellent mechanical aptitude, physical stamina, and a strong understanding of pipeline construction and maintenance, usually supported by relevant trade training or apprenticeship. Knowledge of pipe threading machines, trenchers, and the ability to read blueprints and schematics is often essential, with OSHA safety certification highly recommended. Attention to detail, teamwork, and effective communication are important soft skills for coordinating with crews and ensuring safety standards are met. These competencies ensure that mainline projects are completed efficiently, safely, and in compliance with industry regulations.

What are popular job titles related to Mainline jobs in Washington?

For Mainline jobs in Washington, the most frequently searched job titles are:

What cities in Washington are hiring for Mainline jobs?

Cities in Washington with the most Mainline job openings:

Infographic showing various Mainline job openings in Washington as of August 2026, with employment types broken down into 94% Full Time, and 6% Part Time. Highlights an 100% In-person job distribution.

Excavator Operators Needed - Frederick, MD

Francis O Day Co., Inc

Gaithersburg, MD • On-site

$21.50 - $26.50/hr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Posted 14 days ago


Job description

Job Posting: Excavator Operator
Location: Frederick, MD
Job Type: Full-time, Seasonal (March - December)
Company: Francis O. Day Co. Inc.
Company Address: 850 East Gude Dr. Suite A, Rockville, MD 20850
Company Phone Number: (301) 652-2400 x110
Position: Excavator Operator
Base Pay: $21.50 - $26.50 per hour
Job Overview:
Francis O Day Co. Inc., a leading paving and excavation company that operates in Maryland and Virginia, is seeking experienced Excavator Operators to join our team.
The Excavator Operator (mainline and backfill) role is an hourly skilled craft position whose primary function is the safe and efficient operation of the excavator. A mainline operator is an experienced operator who can cut to grade, handle and place pipe, and has experience working with trench box. A backfill operator is responsible for placing and compacting dirt on the already installed pipe.
Requirements:
  • 2 to 4 years of experience preferred.
  • Must be able to pass drug & alcohol screening.
  • Must be 18 years or older.
  • Must have reliable transportation
  • Must have very good hand, foot and eye coordination to safely operate equipment.
  • Must be able to understand work directions and communicate effectively with job site supervisors and fellow employees.

Job Duties:
  • Understands trench safety requirements, soil types and use of protective systems.
  • Must have knowledge of pipeline and grade compaction requirements.
  • Working to precise standards to excavate line and grade for Mainline Waterline.
  • Maintain depth by checking the laser beam or grade stakes and communicating with operator.
  • Excavates around existing utilities, to install Mainline and backfill piping.
  • Inspecting equipment for deficiencies, including cleaning, greasing and oiling, and submits report indicating equipment condition.
  • Communicates with the pipelayer about the alignment of the pipe by using hand signals to ensure the proper depth and placement.
  • Knowledge of OSHA trench safety standards.

Physical Demands:
  • Ability to lift and carry, on a frequent basis, at least 50 lbs.
  • Requires extensive and heavy physical activity and dexterity.
  • Maintain constant alertness to the multiple concurrent activities of the construction site, including the activities of other employees and contractors, the operation of stationary equipment, and the movement of mobile equipment.
  • Frequently walk on uneven surfaces, including natural ground in varying weather conditions.

Work Environment:
  • Work is performed outdoors in all weather conditions.
  • Employee regularly works near heavy equipment and moving machinery.
  • Ability to use required technology (machine controls, sensors).

Benefits:
  • Competitive pay
  • Paid holidays and Safety Boot Program
  • Health benefits (Health, Dental, and Vision)
  • Sign-on and referral bonuses
  • Company paid Life and AD&D Insurance.
  • 401k with company contribution.
  • Opportunity for overtime
  • 56 hours of Paid Sick & Safe Leave after 90 days.
  • 1 week of vacation time after 1 year of service.

About F.O. Day Company:
For over 80 years, family-owned Francis O Day Co. Inc. has developed into an award-winning construction company by building close relationships with our extended family of valued clients, trusted employees, and dedicated subcontractors & suppliers. Francis O Day Co. Inc.'s headquarters support its regional offices and four asphalt production facilities. Based on a Total Process Reliability (TPR) approach, our management leads the team with a focus on safety, quality, and sustainable performance with a state-of-the-art technology and equipment while maintaining a long-term competitive advantage.
Francis O Day Co. Inc. is an Equal Employment Opportunity employer. All qualified applicants are considered for employment without any discrimination due to their race, gender, religion, age, marital status, national origin, disability, sexual orientation or any other characteristic protected by Federal, state, or local law. This policy extends to all aspects of employment with F.O. Day Company, including, but not limited to, recruitment, hiring decisions, assignment, advancement, compensation, benefits, retention, and termination.
This job description is intended to describe the general nature and level of work being performed by employees in this position. It is not intended to be an exhaustive list of all duties, responsibilities, and qualifications of employees assigned to this job. The job description does not constitute an employment agreement between the employer and employee and is subject to change by the employer as the needs of the employer and requirements of the job change.