CNC Horizontal Milling Machinist (Senior Level)

Projects Inc.; Addison (CT); On-site; USD 85,000 - 110,000; Full time

Job summary

Projects Incorporated in Connecticut seeks a Senior Horizontal Milling Machinist to independently set up, program (if applicable), and operate horizontal milling machines to produce complex, high-precision components. This role requires advanced machining expertise and a commitment to quality and safety.

You will design fixtures, select tooling, optimize speeds and feeds, read blueprints with GD&T, and mentor junior machinists while supporting continuous improvement initiatives across

Qualifications

• 8+ years of horizontal milling experience, including complex setups.
• Advanced knowledge of machining principles, tooling, and materials.
• Strong blueprint reading and GD&T interpretation.
• Proven ability to independently run jobs from setup through completion.
• Proficiency with precision measuring instruments.
• Strong mechanical aptitude and problem-solving skills.

Responsibilities

• Independently set up and operate CNC/CNC horizontal milling machines for complex parts.
• Develop, edit, and optimize CNC programs; plan sequences from print to production.
• Read blueprints, apply GD&T, and ensure correct datum structures.
• Hold tight tolerances and perform in-process and final inspections with precision tools.
• Maintain tooling and fixtures; troubleshoot and implement improvements.
• Mentor junior machinists and lead safety, quality, and standard work.

Skills

Heavy milling

Blueprint reading

GD&T interpretation

Troubleshooting

Leadership

Process optimization

Education

High school diploma or GED

Tools

CNC programming

G-code

Job description

Description

The Senior Horizontal Milling Machinist is responsible for independent setting up, programming (if applicable), and operating horizontal milling machines to produce complex, high-precision components. This role requires advanced machining expertise, strong problem-solving skills, and the ability to lead by example while supporting continuous improvement, quality, and safety initiatives.

Advanced Machine Setup & Operation

• Independently set up and operate manual and/or CNC horizontal milling machines for complex and precision work
• Design, build, and modify advanced fixtures and work-holding solutions
• Select optimal cutters, tooling, and machining strategies to maximize efficiency, accuracy, and tool life
• Perform complex machining operations including heavy stock removal, straddle milling, slotting, splines, keyways, gears, and precision bores
• Optimize speeds, feeds, and cutting parameters to improve quality, cycle time, and cost

Programming & Process Development

• Develop, edit, and optimize CNC programs using G-code or conversational controls (if applicable)
• Plan and establish machining sequences from print through production
• Troubleshoot and resolve complex machining, tooling, fixturing, and material issues
• Collaborate with engineering to improve manufacturability and process reliability

Blueprint Reading & GD&T

• Interpret complex blueprints, specifications, and GD&T requirements
• Apply design intent to machining strategies, datum structures, and inspection methods
• Serve as a technical resource for blueprint interpretation and machining best practices

Quality Assurance & Inspection

• Hold tight tolerances and achieve demanding surface finish requirements
• Perform advanced in-process and final inspections using precision measuring equipment
• Validate setups and approve first-article parts prior to production release
• Identify root causes of non-conformances and implement corrective actions
• Support quality audits and continuous improvement efforts

Maintenance & Troubleshooting

• Perform advanced routine maintenance, alignment checks, and condition monitoring on milling equipment
• Diagnose and resolve recurring equipment or process issues
• Work with maintenance and management on machine, tooling, and process improvements
• Maintain tooling, fixtures, and precision equipment in optimal condition

Leadership & Mentorship

• Mentor and support junior and mid-level machinists
• Lead by example in safety, quality, and workmanship standards
• Assist with training, documentation, and development of standard work
• Communicate effectively with engineering, quality, planning, and supervision

Requirements

Required Qualifications

• High school diploma or GED required; technical training or apprenticeship preferred
• 8+ years of horizontal milling experience, including complex setups
• Advanced knowledge of machining principles, tooling, and materials
• Strong blueprint reading and GD&T interpretation skills
• Proven ability to independently run jobs from setup through completion
• Proficiency with precision measuring instruments
• Strong mechanical aptitude and problem-solving skills

Preferred Qualifications

• CNC programming experience
• Tool &die, aerospace, defense, or high-precision manufacturing background
• Experience in ISO, AS9100, or similar quality systems
• Prior mentoring or leadership experience in a machining environment

Physical Requirements

• Ability to stand for extended periods
• Ability to lift up to 30 lbs
• Manual dexterity and attention to detail
• Comfortable working in a machine shop environment

Acknowledgments:

The above job description is not intended to be an all-inclusive list of duties and standards of the position. Incumbents will follow any other instructions, and perform any other related duties, as assigned by their manager.

Projects Incorporated is an Equal Opportunity Employer and does not discriminate based on race, ancestry, color, religion, sex, age, marital status, sexual orientation, national origin, medical condition, disability, veteran status, gender identity, or any other basis protected by law.

Drug-Free and Alcohol-Free Workplace

In compliance with the Drug-Free Workplace Act of 1988, Projects is committed to providing a safe, quality-oriented, and productive work environment. Alcohol and drug use and abuse pose a threat to the health and safety of our employees, to the security of our equipment, facilities, and product quality. For these reasons, Projects is dedicated to the elimination of drug and alcohol use and abuse in the workplace.

This policy applies to all employees and all applicants for employment at Projects. Human Resources is responsible for the administration of this policy.

Pre-employment

Applicants being considered for hire must pass a drug test after written acceptance of an offer of employment and before beginning work. Refusal to submit to testing will result in disqualification of further employment consideration.

All applicants are subject to pre-employment drug testing and will be assigned to a testing facility designated by Projects and directed to provide a urine specimen. Collected specimens will be sent to a federally certified laboratory and tested for evidence of marijuana, cocaine, opiates, amphetamines, PCP, benzodiazepines, methadone, methaqualone, propoxyphene use, and specimens may be tested for other illegal drug(s).