Senior Maintenance Mechanic

Senior Maintenance Mechanic

Scientific Protein Laboratories (SPL)
Waunakee, WI | On-site | Biopharmaceutical Manufacturing

* Now hiring across 1st, 2nd, and 3rd shifts, with shift premiums and schedule incentive pay available!

Keep critical systems running. Ensure reliability and regulatory compliance. Support life-saving therapies.

Scientific Protein Laboratories (SPL) is a global leader in biopharmaceutical manufacturing, supporting the production of critical therapies that improve and save lives worldwide. As we continue to grow, we’re seeking a Senior Maintenance Mechanic to elevate the performance and reliability of our utility and production support systems at our Waunakee, WI facility.

This is a high‑level technical role for a skilled professional who thrives in a regulated manufacturing environment, enjoys troubleshooting complex systems, and takes pride in operational excellence.

As a Senior Maintenance Mechanic, you’ll play a critical role in maintaining the infrastructure that supports manufacturing operations. Your work ensures equipment reliability, regulatory compliance, and operational continuity.

• Start up, inspect, and maintain utility and production support equipment, performing daily and weekly checks.
• Diagnose and resolve technical issues, making adjustments and repairs to minimize production impact.
• Perform preventive and corrective maintenance on complex systems including:
  • Solvent recovery and peptone concentration systems
  • Boilers and water systems (PW/WFI)
  • Freeze dryers and other critical manufacturing equipment
  • Fire and security systems
• Operate, maintain, and calibrate controls and instrumentation for mechanical, electrical, and HVAC/refrigeration systems.
• Conduct system tests and technical analyses to support continuous improvement and reliability initiatives.
• Collaborate with internal teams and external vendors to resolve complex technical challenges.
• Adhere to regulatory, safety, and quality standards at all times.

• Equipment and systems operate safely, efficiently, and reliably.
• Preventive maintenance is completed accurately and on schedule.
• Technical issues are resolved proactively, minimizing disruption.
• Compliance with cGMP, SOPs, and safety standards is consistently achieved.
• Team members and stakeholders rely on you for advanced technical expertise and problem‑solving.

• High School Diploma or G.E.D.
• 2+ years of maintenance experience in an industrial or manufacturing environment
• Strong mechanical aptitude with proficiency in at least one area (mechanical systems, HVAC, or refrigeration)
• Ability to troubleshoot, diagnose, and repair production and utility equipment
• Ability to meet physical demands of the role, including lifting up to 40–50 lbs and working in varied environmental conditions

• 5+ years of experience in pharmaceutical, life sciences, or regulated manufacturing
• Technical certifications such as ISA, CCST Level 2, Certified Instrumentation Technician, Certified HVAC/Refrigeration Technician, or Licensed Journeyman Electrician
• 1st Class Boiler’s License or Universal Refrigeration License
• Coursework or technical training beyond high school

• Meaningful work supporting life‑saving biologically based therapeutics used worldwide
• Competitive compensation package including base salary and recognition programs
• 401(k) with company match to support your long‑term financial goals
• Generous paid time off (PTO) and paid holidays
• Career development and leadership growth opportunities within a global biopharmaceutical organization
• Collaborative, science‑driven culture that values integrity, accountability, and continuous improvement
• High quality of life in Waunakee, WI! A growing community just outside Madison with excellent schools and outdoor recreation

If you’re a skilled maintenance professional who takes pride in technical mastery, safety, and reliability, and you want your work to directly support therapies that improve lives… SPL wants to hear from you.

SPL is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, color, creed, disability, gender identity, national origin, protected veteran status, race, religion, sex, sexual orientation, and any other status protected by applicable local, state or federal law.