At Air Products, our purpose is to bring people together to reimagine what’s possible, collaborate and innovate solutions to the world’s most significant energy and environmental sustainability challenges. Grow with us as we embark on building tomorrow together by being the safest, most diverse and most profitable industrial gas company in the world.  

Reimagine What’s Possible 

Are you looking for a dynamic, growth-oriented career working with extraordinary people with a mission to provide world-class products and customer service? Rotoflow, An Air Products Business, may be the place for you! We are looking for a Product Application Engineer to support our turbomachinery manufacturing at our Rotoflow HQ in Bethlehem, PA.

In this role, you will serve as a key technical interface between customers, sales, proposal management, and internal engineering teams and translate customer requirements into technically sound, competitive, and commercially viable engineered solutions. You will also support the full pre-sale and proposal lifecycle by providing technical expertise, developing accurate scopes of supply, assessing system performance, and supporting technical negotiations.

Close collaboration with cross-functional engineering teams (mechanical, aerodynamic, systems, R&D, and manufacturing) is essential to ensure proposed solutions align with product capabilities, quality standards, and business objectives. Regular customer interaction and travel are required to support meetings, presentations, and technical discussions.

Rotoflow is a full-service turbomachinery OEM - providing a wide-range of new equipment solutions and aftermarket services to our customers globally. For over 75 years, Rotoflow has designed and manufactured both standard and custom-engineered cryogenic and warm gas centrifugal turbomachinery used in market segments such as industrial gases, petrochemicals, and hydrocarbons. Products include compressor loaded turbo-expanders, generator-loaded power recovery expanders, and low-cost dissipative expanders. We offer new equipment designs, rerates, upgrades and repair along with field services, engineering evaluations, reliability, troubleshooting, training, remote diagnostics/data monitoring, shop services, and new equipment replacements for all types of centrifugal and reciprocating equipment. Our customers are served globally through regional service centers supported by both regional and centralized execution teams.

To learn more about Rotoflow, visit www.Rotoflow.com

Key Responsibilities

Technical Sales & Customer Support

• Serve as a technical advisor to Sales and Commercial teams during pre-sale activities.
• Participate in customer meetings, technical reviews, and negotiations to clarify specifications and address technical questions.
• Deliver technical presentations and product training to customers and internal sales teams.
• Support customer installation, commissioning, and troubleshooting activities as required.

Proposal Development & Scope Definition

• Develop accurate, compelling technical proposals in support of commercial bids.
• Perform preliminary sizing, feasibility studies, and system evaluations during RFQ and bid phases.
• Review customer specifications and prepare engineering clarifications, identifying deviations, risks, and optimization opportunities.
• Define scope of supply, equipment configuration options, and budget inputs in collaboration with proposal and engineering teams.
• Assess system performance, equipment suitability, and economic considerations throughout the bid process.

Cross-Functional Collaboration

• Act as the primary technical liaison between customer-facing teams and internal engineering disciplines.
• Coordinate with mechanical, aerodynamic, systems, R&D, and manufacturing teams to validate proposed solutions.
• Lead or participate in internal technical review sessions to ensure alignment with product standards and internal capabilities.
• Support the handover of awarded technical contracts to execution and project teams.

Product Knowledge & Documentation

• Maintain a strong working knowledge of rotating equipment and related systems.
• Apply applicable industry standards, internal product guidelines, and quality policies.
• Maintain technical documentation, drawings, datasheets, and proposal-related materials.
• Contribute to product and solution improvements through feedback from customer and field experience.

What's In It for You

At Air Products we foster a culture of inclusion where every voi