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Salary
$72k – $113k per year
Location
In office (Millsboro)
Seniority
Staff · 5+ years exp
Visa
Sponsorship offered in the posting
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 31, 2026. First seen by Alion on Oct 8, 2026. Merck & Co. scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Merck & Co. is an American pharmaceutical company founded in 1891 as the United States arm of the German firm Merck and made independent after the First World War, trading as MSD outside the United States and Canada. Its portfolio is dominated by the immuno-oncology drug Keytruda, alongside vaccines such as Gardasil and Vaxneuvance, hospital acute care products, and a large animal health business covering livestock and companion animals. The company is headquartered in Rahway, New Jersey, listed on the New York Stock Exchange, and spends a very large share of revenue on research into oncology, infectious disease and cardiometabolic therapies.
Backed by Aisling Capital, LAV

Job Description

For over 130 years, we have pioneered groundbreaking science. Today, we are driven by continuous innovation to develop breakthrough medicines, vaccines and technology. Rooted in direct experience on the farm and in the clinic, we work hand in hand with our customers every step of the way.

Our singular focus is to empower those who care for animals, helping them manage their vital responsibility with confidence. Because when it comes to animal health, no one sees it like we do.

Our Manufacturing Operations teams are the people that make our products. We work in the manufacturing plants with a “Safety First, Quality Always” mindset striving for continuous improvement. We work in the local plant connected to our global manufacturing network to ensure the highest quality of raw materials, intermediates and finished products.

Our animal vaccine facility in Millsboro, Delaware is experiencing dynamic growth in order to support the global poultry production supply chain. The site has been selected by our Company's Animal Health Division to be the Center of Excellence for Poultry and Freeze Dried Vaccines and therefore, we are looking for high energy, novel thinking individuals to support the site’s long term journey. We have a current opening for an HVAC Maintenance Technician and this position will be a critical element for building a high performance, proactive organization. A signing bonus will be part of the total compensation package to insure we attract the highest caliber of talent possible.

Job Responsibilities:

  • Install, maintain, troubleshoot, and repair process control and environmental control HVAC systems
  • Operational performance & regulatory compliance owner for all site HVAC equipment. Classes of equipment include Ultra-Cold Freezers, Process Chillers
  • Provides timely feedback and coordination to site customers regarding the status of HVAC system
  • Ensures appropriate spare parts inventories are established and maintained
  • Support investigations resulting from abnormal equipment performance
  • Actively supports safety initiatives including shop floor audits, lock-out/tag-out, line break, and confined space permitting
  • Provides training to others, as required
  • Responsible for working as part of an inclusive, high-performance team to achieve site mission, vision, and goals through efficient and safe operation of equipment and compliance with Good Manufacturing Practices

Education :

  • High School Diploma (required)
  • A.S. degree in a technical discipline (preferred)

Required Experience and Skills:

  • Three (3)+ years' experience working with refrigeration equipment (light and heavy commercial)
  • Five (5)+ years’ experience with heating, ventilation, and air conditioning systems.
  • Experience with Chillers and Cooling Towers
  • Experience with general plumbing and pipefitting work.
  • Experience with electrical controls for HVACR systems.
  • Ability to read and interpret blue-prints/schematics in electrical, hydraulics, pneumatics or mechanical systems
  • Valid driver’s license
  • Universal refrigerant license required.
  • Must be able to meet all physical requirements associated with this job, including but not limited to: lifting/carrying up to 50lbs, working from ladders and elevated platforms.
  • Participate in the on-call rotation.
  • Experience working within OSHA General Industry standards including hot work and lockout tag out.

Preferred Experience and Skills:

  • Biotech / pharmaceutical GMP manufacturing industry experience.
  • Experience with -70 Celsius Ultra Cold Freezers, Freeze Driers and Liquid Nitrogen equipment.
  • Experience with gas furnaces and gas heaters.
  • Experience in Biopharmaceutical processing equipment including freeze driers, ultra-cold freezers and incubators.
  • Working knowledge of an automated building management system (Siemens)
  • Experience supporting a fast paced manufacturing environment is an advantage.
  • Applicants should actively support, participate and embrace an empowered team culture and have excellent communication skills
  • Applicant should have previously demonstrated strong team skills, flexibility, motivation, ability to troubleshoot/problem solve, with a strong emphasis around safety and compliance practices.
  • Proficient with CMMS utilization
  • Journeyman Card or Master HVACR License
  • Experience with large commercial walk-in coolers or walk-in freezers

The salary range for this role is: $71,900 - $113,200

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:

Adaptability, Chilled Water Systems, Computerized Maintenance Management Systems (CMMS), Electrical System Troubleshooting, HVAC Systems, Instrumentation, Interpret Electrical Drawings, Mechanical Troubleshooting, Plumbing, Pneumatic Systems, Preventive Maintenance, Programmable Logic Controller (PLC) Engineering, Safety Compliance, Utilities Management, Vendor Relationship Management

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. Asa 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:

EEOC Know Your Rights

EEOC GINA Supplement

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.

Learn more about your rights, including under California, Colorado and other US State Acts

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:

Domestic

VISA Sponsorship:

No

Travel Requirements:

No Travel Required

Flexible Work Arrangements:

Not Applicable

Shift:

1st - Day

Valid Driving License:

Yes

Hazardous Material(s):

n/a

Job Posting End Date:

11/6/2026

*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.

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