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Line Boring Machinist Jobs (NOW HIRING)

Birdon

MACHINIST III

Bayou La Batre, AL · On-site

$20.25 - $27.75/hr

Roles and Responsibilities: • Perform field machining, flange facing, line boring, and drilling operations onboard vessels or in construction areas. • Install and align propulsion components ...

Vigor, LLC

Machinist/Metrology Tech I

Portland, OR · On-site

$43.50/hr

This position handles the metrology requirements of the Machine shop, Shipyard, and other ... Line boring/ portable milling experience strongly preferred. * Advanced understanding of print ...

Quinn Company

Manual Machinist

Riverside, CA

$36.69 - $45.88/hr

Line boring * Threading and conventional lathes Qualifications * High school diploma or equivalent * 2+ years of experience as a manual machinist * Strong knowledge of machining principles and ...

Quinn Company

Advanced Specialist

Riverside, CA

$36.69 - $45.88/hr

Line boring * Threading and conventional lathes Qualifications * High school diploma or equivalent * 2+ years of experience as a manual machinist * Strong knowledge of machining principles and ...

S.E.S. Global Inc.

Field Machinist

Healy, AK

Set up and operate portable machining equipment in the field, including line boring, flange facing, milling, drilling, tapping, and shaft machining systems * Perform precision measurements and ...

Vigor, LLC

Machinist/Metrology Tech I

Portland, OR · On-site

$43.50/hr

This position handles the metrology requirements of the Machine shop, Shipyard, and other ... Line boring/ portable milling experience strongly preferred. * Advanced understanding of print ...

Quinn Company

Manual Machinist

Riverside, CA

$36.69 - $45.88/hr

Line boring * Threading and conventional lathes * High school diploma or equivalent * 2+ years of experience as a manual machinist * Strong knowledge of machining principles and practices

Quinn Company

Manual Machinist

Riverside, CA · On-site

$36.69 - $45.88/hr

Line boring * Threading and conventional lathes Qualifications * High school diploma or equivalent * 2+ years of experience as a manual machinist * Strong knowledge of machining principles and ...

Birdon America, Inc.

MACHINIST III

Bayou La Batre, AL · On-site

Roles and Responsibilities: · Perform field machining, flange facing, line boring, and drilling operations onboard vessels or in construction areas. · Install and align propulsion components ...

Quinn Company

Manual Machinist

Riverside, CA

$36.69 - $45.88/hr

Line boring * Threading and conventional lathes * High school diploma or equivalent * 2+ years of experience as a manual machinist * Strong knowledge of machining principles and practices

Quinn Company

Manual Machinist

Riverside, CA · On-site

$36.69 - $45.88/hr

Line boring * Threading and conventional lathes Qualifications * High school diploma or equivalent * 2+ years of experience as a manual machinist * Strong knowledge of machining principles and ...

Birdon

MACHINIST III

Bayou La Batre, AL · On-site

$20.25 - $27.75/hr

Roles and Responsibilities: • Perform field machining, flange facing, line boring, and drilling operations onboard vessels or in construction areas. • Install and align propulsion components ...

Bender CCP

Manual/Conventional Machinist

Portland, OR · On-site

$25 - $40/hr

Line boring and milling * Turning, grooving, and threading * Valve stems, Journal grinding , shafts ... Machine Operators * Operate presses, CNC machines, mills, lathes, or other production equipment.

Vigor, LLC

Machinist/Metrology Tech I

Portland, OR

$43.50/hr

This position handles the metrology requirements of the Machine shop, Shipyard, and other ... Line boring/ portable milling experience strongly preferred. * Advanced understanding of print ...

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Line Boring Machinist information

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How much do line boring machinist jobs pay per hour?

As of Sep 10, 2026, the average hourly pay for line boring machinist in the United States is $20.70, according to ZipRecruiter salary data. Most workers in this role earn between $16.83 and $21.63 per hour, depending on experience, location, and employer.

What does a line boring machinist do?

A Line Boring Machinist specializes in repairing and restoring the alignment of bores, such as those found in heavy equipment, engines, or industrial machinery. They use specialized boring machines to accurately enlarge or align holes in metal components, often working on-site in challenging environments. Their work is critical for maintaining the functionality and safety of large mechanical systems, as misaligned bores can lead to equipment failure. Line boring machinists must have strong technical skills, precision, and attention to detail.

What are the key skills and qualifications needed to thrive as a line boring machinist?

To thrive as a Line Boring Machinist, you need strong mechanical aptitude, precision measurement skills, and experience with machining or metalworking, often supported by a technical diploma or apprenticeship. Familiarity with portable line boring machines, micrometers, calipers, and related equipment is typically required. Attention to detail, problem-solving, and effective communication are standout soft skills for this role. These skills ensure accurate repairs and modifications, minimize downtime, and maintain the integrity of heavy machinery or equipment.

What are some typical challenges faced by line boring machinists on the job?

Line Boring Machinists often encounter challenges such as working in confined or awkward spaces, since many line boring tasks are performed on large, stationary equipment in the field. Precision is critical, so maintaining tight tolerances and alignment under less-than-ideal conditions can be demanding. Additionally, machinists must be adept at troubleshooting equipment issues and adapting to unexpected repairs or wear patterns. Collaborating with mechanics and engineers is common to ensure machinery is restored to safe and optimal operation.

What is the difference between Line Boring Machinist vs Pipefitter?

AspectLine Boring MachinistPipefitter
CredentialsMachining certifications, technical trainingTrade certifications, apprenticeship programs
Work EnvironmentIndustrial plants, construction sites, manufacturing facilitiesConstruction sites, industrial plants, piping systems
Industry UsageHeavy industry, manufacturing, power plantsOil & gas, chemical plants, HVAC systems

While both roles work in industrial settings, a Line Boring Machinist specializes in precision machining of large bore surfaces, whereas a Pipefitter focuses on installing and maintaining piping systems. The two roles often collaborate but require different skill sets and certifications.

What cities are hiring for Line Boring Machinist jobs?

Cities with the most Line Boring Machinist job openings:

What states have the most Line Boring Machinist jobs?

States with the most job openings for Line Boring Machinist jobs include:

What are popular job titles related to Line Boring Machinist jobs?

For Line Boring Machinist jobs, the most frequently searched job titles are:

Infographic showing various Line Boring Machinist job openings in the United States as of September 2026, with employment types broken down into 5% As Needed, and 95% Full Time. Highlights an 100% In-person job distribution, with an average salary of $43,062 per year, or $20.7 per hour.

Shop Welder Technician 2 (Line Bore)

Irving, TX • On-site

HOLT Group
See more jobs at HOLT Groupexternal

Full-time

Posted 27 days ago

Job description

Shop Welder Technician 2 (Line Bore)
Department: Machine Division (MAC)
Employment Type: Full Time
Location: Irving
Reporting To: Gregory Barragan
Description
The Shop Welder Tech - (Line Bore), performs intermediate welding repairs and fabrication utilizing Holt, Caterpillar and AWS Welding Procedures, Standards and Codes. Demonstrating experience with precision measuring tools, layout/fit up tools, blueprints, and drawings. In addition, this position will be responsible for performing basic line boring jobs, the removal and installation of basic components associated with the job requirements.
The incumbent in this position shall model the following practices daily:
  1. Demonstrate alignment with the company's mission and core business values;
  2. Collaborate with key internal/external resources.
  3. Participate in ongoing self-development.

Essential Functions
  • Models, promotes, and reinforces the consistent use of HOLT's Values Based Leadership (VBL) tools, models, and processes to ensure alignment with our Vision, Values, and Mission.
  • Performs most intermediate repairs/fabrication and welding on heavy equipment and components in a shop environment with minimal oversight by a qualified person.
  • Demonstrates established skills with a cutting/track torch, air arc gouging, layout/fit up tools, band saw, chop saw, and magnetic drill press.
  • Maintains all company equipment, tools, and work areas in good, clean working order.
  • Ensures all welding work is compliant with specific welding codes, procedures, and quality standards.
  • Works overtime as required by workload and customers' needs.
  • Learns to perform basic line boring jobs.
  • Performs removal and installation of basic heavy equipment components.
  • Performs electronic inspection reports using portable electronic devices.
  • Searches parts on the computer in SIS, and orders parts electronically.
  • Accurately prepares technical inspection/service reports, documents, and any other necessary paperwork to complete the job.
  • Pursues on-going self-development, classroom training and on-the-job training.
  • Works safely at all times while consistently adhering to company policies, procedures and standards internally as well as externally when representing our organization.
  • Performs other duties assigned.

Knowledge, Skills, and Abilities
  • Ability to complete most welding repairs on mild and hard steel utilizing FCAW process (all position) and perform most torch work, cutting and gouging.
  • General knowledge of equipment and dimensional tools, including their designs, uses, repair and maintenance.
  • General knowledge of specification and drawing interpretations.
  • Knowledge with current computer software, related hardware, and machine electronic systems.
  • Good work habits, accuracy and an exceptional attention to detail and quality of work.
  • Developing technical skills to become a qualified welder and fabricator with a demonstrated ability to effectively perform assigned welding tasks.
  • Demonstrated verbal and written communication skills.
  • Developing influencing skills and problem-solving skills with a developing mechanical aptitude.
  • Adaptable to changing schedules and exhibits time management skills.
  • Ability to follow logical troubleshooting and standard operating procedures when performing welding fabrication and repairs.
  • Ability to work independently with minimal oversight and as part of a team with a strong work ethic being dependable, reliable, and honest with demonstrated integrity.
  • Ability to follow manufacturer and company installation and service guidelines to ensure quality work.
  • Ability to operate hand tools, power tools, pneumatic tools, and equipment used in fabrication and welding.
  • Required to be a self-starter.
  • Ability to read, write, and understand information with the ability to follow directions and procedures.
  • Able to perform basic line-boring jobs.

Additional Requirements:
  • Welding certification - FCAW 1" T-1 material (3G and 4G) welding processes and GTAW 3/8" mild steel.
  • How to Read Blueprints and Shop Drawings with Weld Symbols
  • Ongoing Safety training
  • CAT SIS program procedures/process training
  • First Aid and CPR training
  • Learns to cut-out/weld-out broken bolts on components.

Requirements
Education and Experience:
  • High school diploma or equivalent required; with additional specialized/technical training or some college courses (Welding Technology) preferred.
  • At least two years required, three or more preferred
  • Preferred license:
  • Flux Cored Arc Welding (FCAW) 3G and 4G (T-1 metal, 1" thick)
  • Gas Tungsten Arc Welding (GTAW) 3G and 4G
  • First Aid/CPR; Confined Space Entry; Methane/O2 Deficiency

Supervisory Responsibilities:
  • None

Travel:
  • Minimal travel, no more than 5%

Physical Requirements:
  • Ability to function, work around and with welding machines, overhead cranes, cutting torches and gauges, fit up and layout tools, forklifts and material handling equipment, hand grinder/sander and air tools.
  • Ability to move objects and use abdominal and lower back muscles to provide support over time without fatigue.
  • Moves materials weighing up to 50 lb., anything more requires a team lift, or a mechanical lift.
  • Constant movement and use of limbs; this position requires good manual dexterity, coordination, and stamina.
  • Ascends/descends with gradual or continuous progress by oneself using hands/feet while maintaining at least three points of contact to climb up/down ladders and/or equipment.
  • Be able to maneuver safely and work underneath equipment.
  • Routinely reacts to visual, auditory, and other signals, including alarms and instructions, and is required to visually inspect work.
  • Significant amount of time standing and walking; at times kneeling, crouching, stooping, climbing, and reaching

Work Environment:
  • Requires the use of common protective or safety equipment.
  • Regularly works outdoors around moving mechanical parts and noise level may be loud at times.
  • May be exposed to weather extremes when working outside in conditions that include inclement weather, heat, cold, and moisture/humidity.
  • Exposure to small quantities of chemicals, dust, steam, high-pressure water, and high-speed rotating equipment
  • Occasionally performs work in cramped spaces and/or high places.
  • Frequently interact with internal/external customers and occasionally interacts with vendors and outside organizations.

Disclaimer: Please note that the above statements are intended to describe the general nature and level of work being performed by employees assigned to this classification. They are not to be interpreted as an exhaustive list of all responsibilities, duties, and skills required of the incumbents so classified. All incumbents may be required to perform duties outside of their normal responsibilities, as needed.

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