CNC Operator III

Be yourself at Protolabs

Studies have shown that women and people of colour are less likely to apply to jobs unless they meet every single qualification. We are an equal opportunity employer, and we are committed to building a diverse team that feels they are valued in the workplace. So do you feel you do not meet every single requirement but still intrigued? We encourage you to still apply!

You can help make our company even better. We do not discriminate based on race, colour, national origin, sexual orientation, gender, age, mental or physical ability, or any way you represent yourself. We strongly believe diversity makes for more successful teams.

We are the leaders in digital manufacturing. We hire doers, makers, and creative thinkers who tackle our roles with an entrepreneurial spirit. Our culture is centered around meaningful work that brings new and innovative products to market at unprecedented speeds. We are a diverse team that comes from all walks of life and take pride in our team who is smart, genuine, humble, and passionate about what we do.

It’s our people who fuel our creativity and make our culture feel like home.

The CNC Operator III is a senior role that has a strong knowledge of CNC Machines, material types and programs and acts as a mentor and trainer for level I & II operators. They are responsible for the setup, operation and troubleshooting of CNC Lathes and Mills and will support the shift supervisor with daily production schedules and duties.

• Set up, adjust, calibrate, and maintain CNC mills, lathes, fixtures, and trunnions.
• Support machine maintenance, rework diagnosis, troubleshooting, and alarm recovery.
• Load materials, run scheduled jobs through MES, and update operational/job progression data.
• Inspect machined parts, cutting tools, and fixtures to ensure quality and accuracy.
• Manage tooling, stock levels, replacements, and waste disposal as required.
• Assist with tool changes, NC helpers, macro variables, probe replacement, and MRS updates.
• Support new machine setups, process changes, and launches of new equipment/processes.
• Maintain machining centres and work areas to high standards of cleanliness, safety, and efficiency.
• Carry out daily safety checks, including E‑stop and door checks.
• Provide technical feedback to engineering, designers, and management on machining issues.
• Mentor and train Level I & II operators on technical aspects.
• Follow company procedures, contribute to continuous improvement, and complete additional assigned tasks.

• 3+ years experience in CNC Machining essential, including setting and operating CNC machines.

• Knowledge of CNC manufacturing – specifically CNC Lathes is essential.
• Able to work safely with sharp and heavy objects (e.g., utility knives, plastic / metal blocks).
• Good written and oral communication skills and able to do basic arithmetic.
• Strong attention to detail.
• Demonstrated teamwork skills.
• Commitment to continuous learning.
• Able to use chemicals in accordance with safety standards.
• Ability to manage time and prioritize work in an effective manner.
• Able to work in a fast‑paced, team‑oriented work environment.
• Must be computer literate with knowledge of Microsoft Office.
• Able to comprehend and follow printed and computer‑screen instructions, and direction from supervisors or technical leads.

• Growth‑oriented company with a focus on your development journey through regular feedback and discussions.
• Open and welcoming corporate culture globally.
• Extensive e‑learning platform with 300+ training courses and on‑site sessions, including internal leadership training.
• Onsite car parking, bicycle storage, and convenient public transport links.
• Newly built canteen with free hot drinks.
• Employee Discount scheme with savings across thousands of UK retailers.
• Employee wellbeing culture with mental health support, wellbeing portal, and psychologist assistance.
• Monetary‑based Reward Schemes for recognition, referrals, anniversaries, and life events.
• 37.5 hours per week, permanent contract with regular breaks.
• 25 days holiday entitlement…