Senior Tech, Maintenance HVAC

MSD; United States; On-site; USD 78,000 - 122,000; Full time

Job summary

Merck & Co., Inc. in the United States seeks an HVAC&R Technician to troubleshoot and maintain process equipment across vaccine production operations.

You will develop SOPs and PM plans, manage SAP transactions, and collaborate with Operations, Quality, Automation, and Technology teams to ensure quality and reliability. The role emphasizes GMP compliance, accurate documentation, and on-call support, with a rotating day shift and potential weekend overtime.

Qualifications

• HS Diploma or equivalent required.
• Minimum 5 years of plant maintenance experience with instrumentation, electrical, HVAC, and refrigeration.
• Proficiency with CMMS and SAP for maintenance and calibration tasks.
• EPA 608 certification or ability to obtain within 30 days of employment.
• Excellent documentation and verbal communication skills.

Responsibilities

• Troubleshoot and maintain complex process systems and equipment.
• Develop SOPs, ECRs, PM plans, and calibration procedures.
• Manage spare parts and coordinate with contractors for maintenance tasks.
• Document activities thoroughly and ensure compliance with GMP and safety standards.
• Support on-call rotations and weekend overtime as needed.

Skills

HVAC troubleshooting

GMP compliance

PLC programming

CMMS

Electrical maintenance

Instrumentation

Root cause analysis

Documentation

Education

HS Diploma or equivalent

Tools

SAP

CMMS

APOGEE/Desigo BAS

Job description

Job Description

The HVAC&R Technician is responsible for providing equipment troubleshooting and maintenance support for ongoing facility facility/manufacturing operation and support growth initiatives at the site. Assists in and develops standard operating procedures (SOP’s) and preventative maintenance (PM’s) plans. Responsible for written documentation of activities. Responsible for SAP transactions and change control activities including spare part lists and Preventative Maintenance (PMs) plans. Actively supports, participates and embraces an inclusive team culture including significant interaction with Operations, Quality, Automation, Technology, and other groups as required. The HVAC&R Technician will provide maintenance supporting vaccine process equipment operations. Takes appropriate action to correct Plant Engineering maintenance problems. Responsible for supporting our company’s Manufacturing Division Divisional site mission by assuring quality of products and services are of the highest quality, optimal cost, and delivered on schedule. Responsible for supporting departmental vision that will provide for continuous improvement in all aspects of the operation. Must be able to function in a team-based empowered culture but perform successfully as an individual. Seeks ideas and information on how to improve customer service involving internal and external customers. Applies knowledge of the overall supply chain to efficiently complete work tasks.

HVAC Skills Concentration:

A primary knowledge in the industrial HVAC&R environment is required, specifically industrial refrigeration systems which includes DX systems, chillers, cascade refrigeration, freezers, air handlers and cold boxes. HVAC&R troubleshooting skills are essential, and the applicant must have experience with GMP areas, room pressurization and dehumidification systems. Must be able to read electrical prints, P&ID’s and understand P&ID control loops. Extensive industrial experience involving utility systems with a strong knowledge of HVAC, steam, potable water is necessary. Knowledge of Siemens “APOGEE/Desigo” BAS is preferred.

Responsible for supporting:

• Utility Equipment (e.g. Clean steam generators, Water-For-Injection generation/distribution, reverse osmosis skids, vapor compression stills, compressed gas systems)
• Automated Systems (e.g. Distributed Control System (DCS), Programmable Logic Controllers (PLC))
• Maintenance Equipment (e.g. tools and calibration equipment)
• Lab equipment / instrument calibrations and maintenance; Autoclaves and Mechanical equipment
• HVAC/ Refrigeration systems, Chilled water, Glycol, plant steam and condensate systems.
• Electrical distribution systems, Motor control systems, generators and ATS systems, VFD’s

Must be flexible to perform all the following functions and other tasks, as needed by site management:

• Ability to work with and troubleshoot complex process systems.
• Routine maintenance tasks including but not limited to diaphragm/gasket replacement, equipment lubrication, filter changes, rotating equipment inspection, and adjustments to process equipment as needed.
• Installation, testing, adjustment, maintenance, repair, calibration and troubleshooting of complex automated process equipment.
• Develop standard operating procedures (SOPs), engineering change request (ECRs), preventative maintenance (PM) plans/calibration procedures, task lists, etc., as required.
• Work compliance systems for maintaining PM program and assessing equipment – SAP, ProCal, Lab X, Pi. Could include approving calibrations, adding new equipment, completing work orders.
• Order and maintain spare parts for assigned process equipment, and place in MRO system
• Interface with other departments, contractors and disciplines on scheduling repairs and maintenance of equipment/utility systems.
• Assist with execution of calibration, automation, validation and additional testing, as required
• Responsible for supporting area. Responsible for written documentation of individual and team activities.
• Work within a team to perform maintenance and troubleshooting activities. Completes preventative maintenance and calibration work orders, resolves deviations and evaluates equipment performance for efficient operation.
• Work with others in seeking out ideas and information to improve customer service. Demonstrates ability to meet customer expectations in term of quality/quantity and on-time delivery as appropriate.
• Identifies revisions, deletions, or additions to the calibration and maintenance programs to ensure that calibration and maintenance activities are carried out in accordance with established safety, GMP, and calibration/maintenance procedures.
• Facilitates contractors by obtaining bids, review contracts, supervises work execution, and follows-up on contract work including the auditing of time and material reports
• Oversee and maintain schedule adherence and unplanned calibrations, and maintenance. Troubleshoots equipment and performs necessary repairs Ensure applicable equipment and systems are maintained in a compliant state
• Efficient and safe maintenance and repair of equipment using Hazardous Energy Control Procedures.
• Compliance with current good manufacturing procedures(cGMP), safety and environmental requirements/regulations/guidelines/permitting.
• Effective communication both written and oral, show strong leadership skills, strong planning, scheduling, and time management skills
• Provide clear consistent communication from shift to shift
• Effective maintenance, troubleshooting, and problem-solving skills required.
• Ability to manage multiple priorities and advance several tasks in parallel and to completion.
• Work with others in seeking out ideas and information to improve customer service.
• Demonstrate mechanical aptitude and ability to read P&ID’s, electrical drawings, blueprints, etc.
• Proficient in the use of general hand and power tools, instruments and testing apparatus commonly used in maintenance and instrumentation.
• Routine shift will be day. Required to support an on-call schedule on nights and weekends.Shift is rotating days.

Physical requirements:

• Must be able to lift 50 lbs, climb ladders and stairs, work on platforms and equipment above floor level.
• Walking, bending, crawling, and stooping is required.
• Required to wear personal protective equipment including safety glasses, earplugs, gloves, hard hats, safety harnesses, etc.
• Position requires clean room gowning during performance of job duties.

Education Minimum Requirement:

• HS Diploma or Equivalent

Required Experience and Skills:

• Minimum of 5 years of plant maintenance experience with knowledge of technical craft skills (instrumentation, electrical, plumbing, advanced mechanical, HVAC, and/or multi-stage refrigeration systems).
• Familiarity of regulatory requirements in accordance with GMP manufacturing operations.
• Willing and able to lift 50 pounds, climb ladders and stairs, work on platforms and equipment above floor level. Walking, bending, crawling and stooping are required.
• Proficiency in computer systems and applications including but not limited to: Microsoft Office (Word, Excel and Outlook), Proficiency in the use and knowledge of PCs (Hardware & Software) including Microsoft Windows platform
• Technically capable with Programmable Logic Controllers (PLCs), CMMS Calibration/Maintenance Database Systems.
• Available for “On-Call” work rotation (during off-hours) and weekend overtime.
• BAS, HVAC and instrumentation troubleshooting skills
• Must be able to read electrical prints, P&ID’s, and understand P&ID control loops
• Excellent documentation and verbal communication skills
• Must possess the ability to work effectively with peers and display strong interpersonal and organizational skills and individual aptitude.
• Must possess a valid EPA 608 Certification or the ability to obtain within 30 days of employmentor the ability to obtain prior to 1st day of employment.

Preferred Experience and Skills:

• Associate Degree in Industrial Refrigeration Systems, alternatively Mechanical, Electronics, Electrical or Instrumentation
• Experience working in a clean room or GMP/regulated manufacturing environment
• Installation, operation, maintenance and/or troubleshooting experience with automated process equipment in the biopharmaceutical field
• Experience with GMP compliant calibration and/or maintenance database systems.
• Knowledge of SAP and Allen Bradley PLC’s, Siemens Apogee BAS.
• Extensive knowledge of industrial HVAC and building automation systems
• Extensive knowledge of industrial refrigeration systems which includes DX systems, cascade refrigeration systems, and absorption systems
• Experience working in a regulated industry such as FDA
• Desiccant Dehumidification System
• Room pressure controls
• Industrial experience involving utility system generation, distribution and control and strong knowledge of steam, compressed air, refrigeration and water systems
• Knowledge of Siemens “APOGEE/Desigo” BAS is preferred.

Shift

• Rotating Days 0600-1830, 5 on, 2 off, 5 off, 2 on.

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The salary range for this role is: $77,700 - $122,300

This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. An employee’s position within the salary range will be based on several factors including, but not limited to relevant education, qualifications, certifications, experience, skills, geographic location, government requirements, and business or organizational needs.

The successful candidate will be eligible for annual bonus and long-term incentive, if applicable.

We offer a comprehensive package of benefits.Available benefits include medical, dental, vision healthcare and other insurance benefits (for employee and family), retirement benefits, including 401(k), paid holidays, vacation, and compassionate and sick days.

Required Skills:

Calibration of Equipment, Calibration of Equipment, Chilled Water Systems, Computerized Maintenance Management Systems (CMMS), Computer Literacy, Electrical Maintenance, Equipment Commissioning, Equipment Evaluation, Equipment Inspection, GMP Compliance, HVAC Systems, Hydraulic Systems, Instrumentation Systems, Instrument Calibrations, Lockout Tagout, Managing Engineering Teams, Mechanical Maintenance, Microsoft Office, PLC Programming, Pneumatic Systems, Preventive Maintenance, Programmable Logic Controller (PLC), Refrigeration Engineering, Regulatory Requirements, Root Cause Analysis (RCA) {+ 2 more}

Preferred Skills:

Current Employees apply HERE

Current Contingent Workers apply HERE

US and Puerto Rico Residents Only:

Our company is committed to inclusion, ensuring that candidates can engage in a hiring process that exhibits their true capabilities. Please click here if you need an accommodation during the application or hiring process.

As an Equal Employment Opportunity Employer, we provide equal opportunities to all employees and applicants for employment and prohibit discrimination on the basis of race, color, age, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability status, or other applicable legally protected characteristics.As a federal contractor, we comply with all affirmative action requirements for protected veterans and individuals with disabilities. For more information about personal rights under the U.S. Equal Opportunity Employment laws, visit:

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We are proud to be a company that embraces the value of bringing together, talented, and committed people with diverse experiences, perspectives, skills and backgrounds. The fastest way to breakthrough innovation is when people with diverse ideas, broad experiences, backgrounds, and skills come together in an inclusive environment. We encourage our colleagues to respectfully challenge one another’s thinking and approach problems collectively.

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San Francisco Residents Only: We will consider qualified applicants with arrest and conviction records for employment in compliance with the San Francisco Fair Chance Ordinance

Los Angeles Residents Only: We will consider for employment all qualified applicants, including those with criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance

Search Firm Representatives Please Read Carefully

Merck & Co., Inc., Rahway, NJ, USA, also known as Merck Sharp & Dohme LLC, Rahway, NJ, USA, does not accept unsolicited assistance from search firms for employment opportunities. All CVs / resumes submitted by search firms to any employee at our company without a valid written search agreement in place for this position will be deemed the sole property of our company. No fee will be paid in the event a candidate is hired by our company as a result of an agency referral where no pre-existing agreement is in place. Where agency agreements are in place, introductions are position specific. Please, no phone calls or emails.

Employee Status:

Regular

Relocation:

No relocation

VISA Sponsorship:

No

Travel Requirements:

No Travel Required

Flexible Work Arrangements:

Not Applicable

Shift:

1st - Day

Valid Driving License:

No

Hazardous Material(s):

n/a

Job Posting End Date:

08/24/2026

*A job posting is effective until 11:59:59PM on the day BEFORE the listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.