Senior Process Engineer - Cryogenic Systems

VEIR

$130K — $160K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 6-8 years of process or systems engineering experience focused on thermofluids systems.
  • Mechanical or chemical engineering degree required.
  • Proficiency in heat transfer, thermodynamics, and fluid systems design.
  • Hands-on experience with P&IDs and PFDs, including standard symbols.
  • Ability to specify and procure equipment like pumps and heat exchangers.
  • Experience producing engineering documentation such as reports and specifications.
  • Familiarity with process safety review methodologies (e.g., HAZOP).

Responsibilities

  • Own thermal and fluid architecture of cryogenic cooling systems from calculations to documentation.
  • Engage with vendors and conduct sanity checks on P&IDs.
  • Speak to and document design requirements from cross-functional teams.
  • Lead equipment specification and vendor qualification processes.
  • Produce engineering calculation reports for high-priority system issues.
  • Contribute actively to safety reviews for subsystems.
  • Document operating procedures and maintenance guidelines.

Benefits

  • 100% employer-paid healthcare premiums for medical, dental, and vision.
  • 401(k) retirement savings program.
  • 12 company holidays and unmetered PTO.
  • 12 weeks of 100% paid parental leave for new parents.
  • Stock options as part of compensation.
  • Employee Assistance Program (EAP) for wellness support.
  • Regular team-building activities and learning opportunities.
Full Job Description
The Role

VEIR is looking for a Senior Process Engineer with deep expertise in cryogenic systems to join our engineering team. This is a system-level role: you will own the thermal and fluid architecture of our cryogenic cooling systems, from first-principles calculations through equipment specification, vendor engagement, and operational documentation. You will work across the engineering organization to ensure our systems are designed, specified, and ready to be built and operated reliably.

You are not a narrowly scoped component engineer. You are someone who can hold the full picture, ask the right questions of vendors, sanity-check a P&ID, and write the documentation that bridges design and operations. Experience in oil and gas (LNG), industrial gas, fusion energy, or space launch is directly applicable. Cryogenic-specific experience is a strong differentiator, but candidates with equivalent thermofluids depth who have built real systems will be seriously considered.

This role reports to the Technical Lead - Cryogenic Systems and joins a small, high-output team where broad ownership and cross-functional collaboration are expected from day one.

In the first 3 months you'll
  • Review and develop a working understanding of VEIR's cryogenic system designs, existing documentation, and outstanding technical questions.
  • Complete engineering calculations or reports on at least two high-priority system problems, such as liquid nitrogen tank thermal management or manifold flow distribution.
  • Build relationships with your cross-functional counterparts in mechanical, electrical, and systems engineering.
  • Begin contributing to P&ID reviews, identifying gaps or inconsistencies in current design documentation.

In the first 6 months you'll
  • Own equipment specification and vendor qualification for one or more cryogenic subsystems, including selection of pumps, heat exchangers, tanks, or flow control components.
  • Produce formal calculation reports or technical memos that support design decisions and are suitable for design review.
  • Actively contribute to process safety reviews (HAZOP or equivalent) for relevant subsystems.
  • Begin taking on design and analysis tasks within the 1.0 low voltage product program with limited oversight.

By the end of the first year, you will have
  • Lead a cross-functional technical effort, coordinating internally and with external partners to resolve a complex system-level engineering question.
  • Own the process engineering documentation library for assigned subsystems, including operating procedures, maintenance guidelines, and specification records.
  • Be a recognized internal resource for cryogenic and thermal systems expertise, supporting design decisions across the 1.0 and HTS product lines.
  • Demonstrate the ability to scope, structure, and independently drive engineering investigations from problem definition through to a documented, decision-ready output.

To be successful in this role

You bring:
  • 6 to 8 years of experience in process or systems engineering, with a focus on thermofluids-intensive systems. Mechanical or chemical engineering degree required.
  • Demonstrated proficiency in heat transfer, thermodynamics, and fluid systems design, including cryogenic or low-temperature applications.
  • Hands-on experience reading, creating, and reviewing P&IDs and PFDs, with fluency in standard instrumentation and equipment symbols.
  • Experience specifying and procuring major equipment items, including pumps, heat exchangers, cryogenic tanks, and associated controls.
  • A track record of producing engineering documentation: calculation reports, equipment specifications, operating procedures, or design basis memos.
  • Some exposure to process safety review methodologies (HAZOP, FMEA, or equivalent).
  • Experience from oil and gas (specifically LNG), industrial gas, fusion energy, or space launch is directly relevant to the work here.

Nice to have:
  • Direct cryogenic systems experience, specifically with liquid nitrogen, liquid hydrogen, or liquid oxygen handling.
  • Field experience observing or participating in system construction, commissioning, or startup, and feeding those lessons back into design.
  • Familiarity with the full project lifecycle: from concept and design through procurement, construction oversight, and commissioning.

You are:
  • A systems thinker who can hold the full picture of a complex fluid system while knowing which details matter most.
  • Comfortable working with ambiguity and incomplete information, structuring engineering problems before solving them.
  • Skilled at communicating technical findings clearly in writing and in cross-functional settings.
  • Energized by the pace and ownership that comes with an early-stage, high-impact deep tech environment.
  • Collaborative and straightforward: you share what you know, ask when you don't, and hold yourself accountable to your commitments.

VEIR is committed to equal pay for equal work in its compensation practices. The base salary range for this position in the U.S. is $130,000 - $160,000 per year + equity + benefits. A candidate's salary is determined by various factors including, but not limited to, relevant work experience, skills, certifications, job level, supervisory status, and location.

BENEFITS & PERKS

Healthcare coverage with 100% employer paid premiums for medical, dental, and vision

401(k) Retirement Savings Program

12 Company Holidays + unmetered PTO

12 Weeks 100% Paid Parental Leave for all new parents

Stock Options

Employee Assistant Program (EAP)

Regular teambuilding, off-sites, and lunch & learns

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