CNC Machinist (Machinist I) – Mills, Lathes & Waterjet

General Plastics and Composites LP; Houston (TX); On-site; USD 45,000 - 60,000; Full time

Benefits offered by this job

Medical

Dental

Vision

401(k)

Paid time off and holidays

Job summary

General Plastics & Composites, LP in Houston, TX is seeking a Machinist I to set up and run manual and CNC equipment to produce precision metal parts under supervision.

You will read blueprints, measure with micrometers and calipers, and maintain tooling; shift options 6am–6pm or 6pm–6am; full-time with competitive pay and benefits.

This entry-level role is in the Flex Machining department and offers growth toward CNC setup and programming.

Qualifications

• 2+ years of experience working with manual and/or CNC machines.
• Able to read and interpret blueprints and drawings.
• Familiarity with CNC programming (G-code, M-code and Mazatrol).
• Math skills and ability to use handheld measuring tools.

Responsibilities

• Set up and run manual lathes, manual mills, CNC lathes, CNC mills, and Waterjet.
• Read and interpret blueprints and drawings.
• Measure parts with micrometers, calipers, bore gauges, protractors, height gauges and depth gauges.
• Set up machining fixturing and perform preventive maintenance.
• Follow engineering instructions and SOPs; maintain a clean, safe workspace.
• Assist other departments as needed with supervision.

Skills

Blueprint reading

English proficiency

Math skills

Education

High school diploma or GED

Tools

G-code

M-code

Mazatrol

Micrometers

Calipers

Bore gauges

Protractors

Height gauges

Depth gauges

Job description

Updated November 10, 2026

At a glance

Company: General Plastics & Composites, LP
Location: Houston, TX 77075
Pay: Competitive, based on experience
Job Type: Full-time
Shift: 6am–6pm or 6pm–6am
Experience: Entry-level, 2+ years on manual and/or CNC machines
Department: Flex Machining
Machines: Manual lathes and mills, CNC lathes and mills, Waterjet
Controls: G-code, M-code and Mazatrol (familiarity)

Why this job is worth considering

General Plastics & Composites is hiring a Machinist I for its Flex Machining department in Houston, Texas. This is the entry-level step on the machinist track: you set up and run manual and CNC equipment to make precision metal parts to specification, working under close supervision and established procedures.

It fits someone with at least two years on manual or CNC machines who wants to build setup and CNC skills in a manufacturing environment.

What you'll be doing

• Set up and run manual lathes, manual mills, CNC lathes, CNC mills and Waterjet machines for production and engineering parts, with moderate to light assistance
• Read and interpret blueprints and drawings
• Measure and inspect parts with micrometers (OD and ID), calipers, bore gages, protractors, height gages and depth gages, and verify gage calibration
• Set up machining fixturing
• Perform preventative maintenance on machines per the company PM program
• Follow all engineering instructions, standard operating procedures and departmental procedures
• Keep the work area and equipment clean and orderly and follow all prescribed safety regulations
• Assist other departments as needed with management approval
• Other duties as assigned

Machines, controls and software

• Machines: manual lathes, manual mills, CNC lathes, CNC mills, Waterjet
• Controls and programming: familiarity with CNC programming languages (G-code, M-code and Mazatrol) and how to create and edit programs
• Measuring tools: micrometers (OD and ID), calipers, bore gages, protractors, height gages, depth gages

What we're looking for

Required

• 2+ years of experience working with manual and/or CNC machines
• High school diploma or GED
• Able to read and interpret blueprints and drawings
• Familiarity with CNC programming (G-code, M-code and Mazatrol)
• Math skills and the ability to use handheld measuring toolsli>
• Able to follow written and verbal instructions in English
• Reliable attendance and punctuality, and a team-first attitude

Physical requirements and shop environment

• Stand for extended periods, walk, use your hands to handle or feel, and reach with hands and arms
• Frequently lift or move up to 50 pounds, and occasionally up to 100 pounds with assistance
• Work in a shop environment that can include hot or cold temperatures, humidity, high noise levels and hazardous fluids such as coolants and lubricants
• Machine and handle a wide variety of materials, including fiberglass composites, plastics, metals and other alloys

Pay, benefits and schedule

• Full-time, Monday through Friday
• Shift: 6am–6pm or 6pm–6am
• Pay: competitive, based on experience
• Benefits: medical, dental and vision, 401(k), and paid time off and holidays

About General Plastics & Composites and apply

General Plastics & Composites, LP (GP&C) is a Houston manufacturer with a quality system certified by DNV to AS9100 and ISO 9001:2015. Every employee is expected to follow its Quality, Health, Safety and Environmental (QHSE) protocols, take part in its QHSE culture, take pride in their work and look for ways to improve processes.

GP&C is an Equal Opportunity Employer. We are committed to providing equal employment opportunities in all employment practices, without regard to race, color, religion, gender, national origin, marital status, age, veteran's status, disability, sexual orientation, or any other characteristic protected by law.