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Sr Principal Mechanical Engineer

Air Products


Job Location:

Houston, TX - USA

Monthly Salary: Not provided by the employer
Posted: 13 June 2026 (30+ days ago)
Application Deadline: 30 September 2026
Vacancies: 1 Vacancy

Job Summary

At Air Products we reimagine whats possible. By tapping into the motivation of our people and our collective experience we create the ideas and innovations that drive us forward. When we come together where every voice is heard and everyone knows they belong and matter we create solutions that launch people into space support lifesaving care in hospitals and enable the construction of groundbreaking world scale production facilities.


Reimagine Whats Possible



Do you have a passion for solving complex engineering challenges and developing world-class turbomachinery solutions Air Products is seeking a Sr Principal Mechanical Engineer to join our Rotoflow team in Bethlehem PA or Houston TX. In this role you will apply your expertise in turbomachinery design analysis and project execution to support proprietary high-speed rotating equipment and machinery support systems used by customers around the world. If you thrive in a safety-focused environment and enjoy tackling challenging engineering problems we invite you to grow with us as we build a more sustainable future.

Rotoflow an Air Products business is a leading turbomachinery OEM providing new equipment aftermarket services and engineered solutions to customers worldwide. For more than 75 years Rotoflow has specialized in the design and manufacture of standard and custom-engineered cryogenic and warm gas centrifugal turbomachinery serving industries including industrial gases petrochemicals and hydrocarbons. Our products include compressor-loaded turbo-expanders generator-loaded power recovery expanders and low-cost dissipative addition to new equipment we provide upgrades repairs field services engineering evaluations reliability and troubleshooting support training remote diagnostics and monitoring shop services and replacement equipment for a wide variety of centrifugal and reciprocating machinery. Customers are supported globally through regional service centers backed by both regional and centralized execution teams. To learn more visit .

Key Job Responsibilities:
  • Perform various turbomachinery design analyses including FEA (stress deflection and modal) hand calculations and rotordynamics
  • Development of standardized product deliverables collaborating with Product Owners
  • Executing mechanical design tasks related to awarded projects and product development initiatives support of aftermarket activities and engineering tasks
  • Communicate with vendors on technical solutions
  • Support root cause analyses (RCA) of equipment and field commissioning and startup activities executed by the Aftermarket Team
  • Drive engineering and material cost reductions and competitiveness across project and product offerings collaborating with stakeholders
  • Collaboration with customers to ensure proper design and integration of equipment into the process
  • Select components and materials for turbomachinery and systems
  • Perform safety and operability reviews
  • Collaborate with various subject areas to finalize equipment designs
  • Checking and approving manufacturing drawings
  • Support of bid estimate development
  • Collaborate with the Business Improvement Team to develop new and standardized design engineering tools and work processes for streamlining projects and product development
  • Challenge norms with alternate solutions rooted in engineering fundamentals
  • Promote safety and diversity consistent with the philosophies of Rotoflow
Whats In It for You:

At Air Products we foster a culture of inclusion where every voice is heard and everyone feels they belong and matter. Additionally we offer competitive pay and great benefits for our employees. Check out some of our benefits below!

  • Affordable medical dental and vision insurance available day one of employment
  • 401(k) retirement savings plan with immediate vesting of company match and core contributions
  • Paid vacation holidays and sick time
  • Paid parental leave
  • Adoption assistance
  • Flexible Spending Accounts (medical dependent daycare)
  • Health Savings Account
  • Life Insurance (AD&D) Supplemental AD&D
  • Employee Assistance Program (EAP)
Required Skills / Abilities
  • 1015 years turbomachinery or rotating machinery design experience
  • Deep understanding of design principles including FEA rotordynamics bearing and seal technologies and design for manufacturability
  • Detail-oriented goal oriented organized creative self-motivated collaborative and customer focused
  • Excellent analytical creativity problem solving time management and decision-making skills
  • Excellent interpersonal skills (written verbal and presentation)
  • Exemplify a passion for winning and ability to motivate teams
  • Ability to create an environment of trust and consistently exhibit a positive attitude
Differentiating Skills / Abilities
  • Advanced FEA capabilities a plus
  • Rotordynamic analysis capabilities a plus
  • Fluid film bearing gas bearing magnetic bearing hydrostatic bearing and rolling element bearing applications and design experience a plus
  • Gas seal and labyrinth seal applications and design experience a plus
  • Design for manufacturability experience a plus
  • Turbine testing data acquisition and data evaluation a plus
  • 2D CAD and 3D modeling and simulation a plus
  • Equipment startup and plant integration a plus
  • Programming skills: VB C# C Python Matlab Fortran or similar languages a plus
Degree and Licensing Requirements
  • Technical Degree: BS Mechanical Engineering (BSME) or related degree.
  • Advanced degree and focus on turbomachinery design rotordynamics fluid film bearings seals design for manufacturability and/or manufacturing processes a plus.
Working Conditions
  • This position is based at our headquarters in Bethlehem PA or Houston TX.
  • Hybrid work schedule with 4 days in-office. Subject to change.
  • Travel requirements: Minimal-under 10% for onsite customer support.
  • Work environment: Indoors office setting at same site as testing lab and manufacturing floor.

#LI-KC1

Air Products proudly values the skills dedication and leadership that veterans bring to the table. As a veteran-friendly organization we actively encourage and welcome veterans to apply for various roles within our company. We recognize the unique strengths and experiences that veterans contribute and we foster a workplace that honors your service while providing a platform for professional growth.



Founded in 1940 Air Products is a world-leading industrial gases company and has a proud history of innovation operational excellence with an unwavering commitment to safety and environmental stewardship. Working together we are taking our passion and diverse backgrounds forward to reimagine whats possible and generate a cleaner future for our customers our communities and the world.

We are an Equal Opportunity Employer (U.S.).You will receive consideration for employment without regard to race color religion national origin age citizenship gender marital status pregnancy sexual orientation gender identity and expression disability or veteran status.


Air Products is committed to working with and providing a reasonable accommodation to individuals with disabilities. If you have a disability and you believe you need a reasonable accommodation to search for a job opening or to submit an online application please e-mail us at General application status inquiries are not answered by this mailbox rather youll receive an e-mail directly from our Career Center and/or the Talent Acquisition Specialist.


Required Experience:

Staff IC


About Company

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Air Products touches the lives of consumers around the globe in positive ways every day. With more than 17,000 employees and operations in 50 countries, we serve customers across a wide range of industries, including refining, chemical, metals, electronics, manufacturing, and food and ... View more

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