Apple

Sr Mechanical Cx Engineer, Data Center Engineering

Apple$110K — $130K *
Technical Services
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Mechanical Engineering, Architectural Engineering, Systems Engineering, or related discipline.
  • 5+ years of experience managing commissioning of mechanical and HVAC systems in hyperscale data centers.
  • Familiar with large-scale mechanical cooling systems like chilled water plants and CRAH/CRAC units.
  • Experienced in commissioning fire protection and detection systems for data centers.
  • Skilled in developing and overseeing Functional Performance Testing (Level 4) and Integrated Systems Testing (Level 5) procedures.
  • Proficient in mechanical Sequence of Operations (SOO) validation under dynamic loads.
  • Willingness to travel approximately 40%, including international travel.

Responsibilities

  • Oversee the end-to-end lifecycle of commissioning activities, managing third-party Commissioning Agents.
  • Direct project phases including design reviews and Factory Acceptance Testing (FAT).
  • Manage Pre-Functional Testing (PFT) and Functional Performance Testing (FPT) processes.
  • Lead Integrated Systems Testing (IST) initiatives effectively.
  • Ensure technical oversight and script validation across all commissioning phases.

Benefits

  • Opportunities for professional development and training.
  • Flexible work hours to accommodate project demands.
  • Support for international travel for key project phases.
Full Job Description
Description

In this role, you will govern the end-to-end commissioning lifecycle by managing third-party Commissioning Agents (CxA) rather than executing tests directly. With a strong emphasis on technical oversight, script validation, and cross-functional leadership, you will direct all project phases, including design commissionability reviews, Factory Acceptance Testing (FAT), Pre-Functional Testing (PFT), Functional Performance Testing (FPT), and Integrated Systems Testing (IST).

Minimum Qualifications

Bachelor's degree in Mechanical Engineering, Architectural Engineering, Systems Engineering, or a related engineering discipline (or equivalent practical/job-related experience).

5+ years of direct experience commissioning and or managing the commissioning of mechanical and HVAC systems in a Hyperscale data center environment.

Understanding of large-scale mechanical cooling systems (such as central chilled water plants, cooling towers, air-cooled/water-cooled chillers, CRAH/CRAC units, and pumping infrastructure).

Experience with the commissioning, testing, and or validation of data center fire protection, suppression, and early warning fire detection systems.

Experience developing, reviewing, approving, and or overseeing the execution of Level 4 (Functional Performance Testing) and Level 5 (Integrated Systems Testing) test scripts and procedures.

Experience with mechanical Sequence of Operations (SOO) validation under dynamic load conditions.

Willingness and ability to travel approximately 40%, with availability for international travel as needed to support vendor factory testing and global site commissioning activities.

Preferred Qualifications

Professional Engineer (PE) license in Mechanical Engineering strongly preferred.

8+ years of mission-critical mechanical commissioning leadership experience covering greenfield hyperscale data center campuses and specialized R&D/hardware lab facilities.

Deep practical expertise in high-density compute cooling, including liquid-to-liquid / liquid-to-air Coolant Distribution Units (CDUs), secondary fluid loops, manifold design validation, and direct-to-chip cooling commissioning.

Experience with commissioning management software platforms (such as CxAlloy, Facility Grid, or similar tools) for script management, issue tracking, and project reporting.

Practical knowledge of Building Automation Systems (BAS) and Direct Digital Control (DDC) platforms, including PID loop tuning, sensor calibration validation, network architecture, and communication protocols (BACnet, Modbus).

Experience with data center load bank deployment, variable-capacity heat-load testing strategies, acoustic testing, and thermal imaging/infrared thermography.

Demonstrated track record of resolving complex field engineering challenges, conducting Failure Modes and Effects Analysis (FMEA), and driving continuous improvement into corporate commissioning standards and specifications.

Experience utilizing data trending, BMS telemetry, and Python scripting or data visualization tools to evaluate equipment performance curves, plant efficiency (kW/ton, PUE), and transient response during failover tests.

Proficiency with AI tools to enhance daily work - including AI-assisted authoring and redlining of commissioning scripts, automated parsing of submittals and sequences of operations, and leveraging predictive analytics and anomaly detection over operational telemetry.

About Apple

Apple is a corporation that designs, manufactures, and markets mobile communication and media devices, personal computers, portable digital music players, and sells a variety of related software, services, peripherals, networking solutions, and third-party digital content and applications. Apple provides many products and services, including iPhone; iPad; iPod; Mac; Apple TV; a portfolio of consumer and professional software applications; the iOS and OS X operating systems; iCloud; and accessories, service, and support offerings. It sells its products worldwide through its retail stores, online stores, direct sales force and third-party cellular network carriers, wholesalers, retailers, and value-added resellers to the consumer and also sells third-party iPhone, iPad, Mac and iPod compatible products, including application software and accessories through its online and retail stores. Introduced in 1984, the Macintosh was the first widely sold personal computer with a graphical user interface (GUI). That feature and others such as an improved floppy drive design and a low-cost hard drive that made data retrieval faster helped Apple cultivate a reputation for innovation. Apple was named as the most admired company in the United States in 2008 and in the world from 2008 to 2012 by the Fortune magazine. The company was founded by Steven Paul Jobs, Steve Wozniak, and Ronald Gerald Wayne on April 1, 1976, and is headquartered in Cupertino, California.

Apple Careers

Join Apple, a place where extraordinary people gather to do their best work. Our ever-expanding global team is at the forefront of innovation and leadership in the tech industry. At Apple, we're not just building products—we're crafting the kind of wonder that revolutionizes entire industries. It's the diversity of our people and their ideas that inspires the innovation that runs through everything we do, from amazing technology to industry-leading environmental efforts. Work You’ll Do Embark on a journey with Apple’s market-leading team to help some of the world’s most influential companies navigate their path to digital mastery with cutting-edge technology and services. Transform industries and touch lives with your unique ideas at Apple. Here, you’ll lead through a unique position at the intersection of technology, creativity, and robust industry expertise. Collaborate with a global team of professionals who are at the top of their game in technology and design. Apple isn’t just a company, it’s a community of innovators and passionate thinkers. Introducing the Apple Innovation and Leadership Initiative We are building a market-leading team to drive our efforts in delivering groundbreaking solutions and services. At Apple, job opportunities are abundant, offering you the chance to explore diverse roles from engineering to marketing, all designed to empower your career growth. Do Innovative Work Join the largest group of creative and technical experts in the world—professionals dedicated to redefining what’s possible through technology and innovation. Deliver targeted solutions through a depth and breadth of expertise that’s unmatched, driving forward our commitment to excellence and leadership in every project we undertake. Be Part of a Great Team Engage in a wide range of projects utilizing Apple’s technology and resources. Harness the unparalleled capabilities, global scale, and joint solution development that only Apple can offer. Future-Proof Your Career Advance your career with limitless opportunities at Apple. Go as far as your ambition takes you with unmatched training, development, and certification support. Explore Discover how Apple is leading the way in tech innovation: [With iOS] Businesses can streamline operations and enhance customer interactions... READ MORE Smart home technology integration that sets the standard for convenience and security... READ MORE The Apple Experience Our combined service capabilities, global scale, and joint solution development help clients overcome challenges and lead transformation in their industries. Clients worldwide look to Apple for new strategies and solutions that drive growth and innovation in the digital era. Stay Connected Join Our Team Search open positions that match your skills and interests. We look for passionate, curious, creative, and solution-driven team players. Whether you’re seeking a professional role, an internship, or a leadership position, Apple offers a variety of employment opportunities. SEARCH APPLE JOBS Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. READ CAREERS BLOG Job Alert Emails Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. See what exciting and rewarding opportunities await at Apple, a company committed to diversity, innovation, and leadership. Explore job opportunities, employment benefits, and the culture of growth and innovation at Apple. Prepare your resume, hone your interview skills, and ready yourself for a career at one of the most prestigious companies in the world. Join us in pushing the boundaries of what is possible.
Learn more about Apple
Size
154,000 employees
Market Cap
$2,074.3 billion
Industry
Net Income
$63.9 billion
Founded
1976
5 Year Trend
+11.5%
Revenue
$294.1 billion
NASDAQ

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