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Senior Thermal Design Engineer

API Heat Transfer
API Heat Transfer Salary
Buffalo, NY Full Time
POSTED ON 7/11/2026
AVAILABLE BEFORE 9/10/2026

Engineer the Future of Heat Transfer -

API is growing rapidly, and we're looking for a Senior Thermal Design Engineer to help lead the way. You'll design and optimize shell-and-tube and gasketed plate heat exchangers, owning projects from thermal rating through manufacturing support - alongside a world-class global team of thermal professionals pushing the boundaries of heat transfer technology.

What We Offer You:

  • Opportunity to learn from and contribute to a premier, global company
  • Be part of leading-edge technology for the heat transfer industry
  • Ability to impact customers across multiple industries
  • Full health & welfare benefits, 401(k), PTO, and developmental opportunities!
  • Salary Range $95,000/year - $110,000/year

What You Will Do:

  • Thermal Rating: Perform thermal design and sizing of shell-and-tube and plate-type heat exchangers for situations involving single and multi-phase flows and phase change.
  • Software Simulation: Utilize HTRI and other packages along with API proprietary programs.
  • Spec Verification: Review customer data sheets, piping diagrams, and process specifications.
  • Cross-Functional Support: Collaborate with mechanical design engineers to ensure code compliance to ASME, CRN, PED, ABS, and other relevant codes.
  • Client Consultation: Provide technical support to sales teams and interface directly with clients on an as-needed basis.

What You Will Bring:

  • Education: Bachelor of Science degree in Mechanical or Chemical Engineering, Master's degree preferred.
  • Accreditation: Degree must be from an ABET-accredited university.
  • Experience: 3 to 5 years of professional experience in thermal design.
  • Exchanger Expertise: Proven track record sizing shell-and-tube and plate heat exchangers for single and multi-phase fluids.
  • Software Skills: Proficient with HTRI or Aspen EDR software.
  • Fluid Dynamics: Strong foundational knowledge of thermodynamics, fluid mechanics, and heat transfer.
  • Communication: Clear technical writing and verbal communication skills. English proficiency required.

Preferred Qualifications

  • Industry Standards: Familiarity with TEMA standards and ASME Section VIII, Division 1.
  • Research & Development: Experience with laboratory testing of thermal products
  • Local Presence: Current residency in or willingness to relocate to the Buffalo, NY area.

APICZ

____________________________

Equal Employment Opportunity: All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, or are limited in the ability or unable to access or use this online application process and need an alternative method for applying, you may contact API Heat Transfer at (716) 684-6700 for assistance.


The company rejects all forms of unlawful discrimination, not only because it is against the law, but because it is inconsistent with our corporate values. This includes unlawful discrimination because of a person's race, color, national origin, sex, religion, age, disability, marital status, military status, genetic information, predisposing genetic characteristics, veteran status, sexual preference, domestic violence victim status, or any other protected category as defined by applicable state or federal law. Employment decisions are made with regard to lawful considerations.

 

Salary : $95,000 - $110,000

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