Senior Maintenance Technician

Company: JLL
Location: Philadelphia
Posted on: April 3, 2026

Job Description:

JLL empowers you to shape a brighter way . Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology for our clients. We are committed to hiring the best, most talented people and empowering them to thrive, grow meaningful careers and to find a place where they belong. Whether you’ve got deep experience in commercial real estate, skilled trades or technology, or you’re looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward. Position Summary The Senior Maintenance Technician is a skilled professional responsible for the safe and efficient operation, maintenance, and repair of the facility's critical utility systems, including central plant equipment (boilers, chillers, cooling towers) and building HVAC systems. The technician will perform a wide range of tasks from preventative maintenance to emergency troubleshooting, ensuring all systems operate at peak performance while maintaining a high standard of safety and regulatory compliance. Essential Duties & Responsibilities Operate & Monitor Routinely perform building rounds in accordance with established procedures to inspect all utility equipment and mechanical rooms Monitor operational parameters and trends via the Building Automation System (BAS) and physical gauges Work in close collaboration with utility system engineers and mechanics to start, stop, and adjust equipment settings to optimize efficiency and maintain environmental conditions Maintenance & Repair Execute a comprehensive preventative maintenance program on all assigned assets in accordance with established maintenance programs Diagnose and troubleshoot mechanical, electrical, and control system failures Perform repairs on a variety of components, including pumps, motors, compressors, and control valves Work in collaboration with facilities mechanics, engineers and contractors to conduct chemical testing and treatment of boiler, cooling tower and other closed loop water systems in accordance with established programs Technical Expertise Demonstrate strong knowledge of the principles of steam generation, chilled water production, and air handling systems Read and interpret blueprints, schematics, and technical manuals Utilize specialized tools and test equipment (e.g., multimeters, pressure gauges) to perform diagnostics Hold a Philadelphia Class A Boiler operators license Documentation & Administration Accurately complete all work orders and maintenance logs in the CMMS in accordance with established procedures Document all repairs, parts used, and hours worked Maintain an organized inventory of parts and tools in accordance with MRO storeroom procedures Safety & Compliance Strictly follow all established safety procedures and protocols, including LOTO procedures Ensure all work is performed in accordance with applicable codes and standards (e.g., NFPA, ASME, EPA) Participate in safety training and drills Qualifications Education High School Diploma or GED required Associate's Degree or Vocational/Technical training in HVAC, Refrigeration, or related field highly preferred Certifications/Licenses EPA Section 608 Universal Refrigerant Certification required Philadelphia Class A Boiler operators license required HVAC Technician Certification preferred Experience 10 years of hands-on experience in the operation and maintenance of large-scale commercial or industrial utility systems Experience with Carrier Chillers, Cleaver Brooks Boilers, and Atlas Copco compressors preferred Life Sciences/Pharmaceutical experience preferred Required Skills Strong mechanical and electrical troubleshooting skills Proficiency with Building Automation Systems (BAS) such as Siemens and Vaisala Ability to read and understand technical drawings and manuals Excellent communication and problem-solving skills Basic computer skills for work order management and reporting Physical Requirements Must be able to lift up to 50 pounds Ability to work in confined spaces, elevated areas, and various environmental conditions (hot boiler rooms, cold mechanical spaces) Ability to stand, walk, climb ladders, and kneel for extended periods Working Conditions Full-time position May be required to work evenings, weekends, and holidays as part of an on-call rotation or for emergency response This position does not provide visa sponsorship. Candidates must be authorized to work in the United States without sponsorship. Location: On-site –Philadelphia, PA If this job description resonates with you, we encourage you to apply, even if you don’t meet all the requirements. We’re interested in getting to know you and what you bring to the table! Personalized benefits that support personal well-being and growth: JLL recognizes the impact that the workplace can have on your wellness, so we offer a supportive culture and comprehensive benefits package that prioritizes mental, physical and emotional health. Some of these benefits may include: 401(k) plan with matching company contributions Comprehensive Medical, Dental & Vision Care Paid parental leave at 100% of salary Paid Time Off and Company Holidays Early access to earned wages through Daily Pay At JLL, we harness the power of artificial intelligence (AI) to efficiently accelerate meaningful connections between candidates and opportunities. Using AI capabilities, we analyze your application for relevant skills, experiences, and qualifications to generate valuable insights about how your unique profile aligns with the specific requirements of the role you're pursuing. JLL Privacy Notice Jones Lang LaSalle (JLL), together with its subsidiaries and affiliates, is a leading global provider of real estate and investment management services. We take our responsibility to protect the personal information provided to us seriously. Generally the personal information we collect from you are for the purposes of processing in connection with JLL’s recruitment process. We endeavour to keep your personal information secure with appropriate level of security and keep for as long as we need it for legitimate business or legal reasons. We will then delete it safely and securely. For more information about how JLL processes your personal data, please view our Candidate Privacy Statement . For additional details please see our career site pages for each country. For candidates in the United States, please see a full copy of our Equal Employment Opportunity policy here . Jones Lang LaSalle (“JLL”) is an Equal Opportunity Employer and is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process – including the online application and/or overall selection process – you may email us at HRSCLeaves@jll.com . This email is only to request an accommodation. Please direct any other general recruiting inquiries to our Contact Us page > I want to work for JLL. Accepting applications on an ongoing basis until candidate identified.

Keywords: JLL, Bethlehem , Senior Maintenance Technician, Engineering , Philadelphia, Pennsylvania