Join us at Portal!
Portal Space Systems is a Seattle-based startup developing innovative space technologies and spacecraft. Our flagship product is a revolutionary new spacecraft called Supernova, which utilizes solar thermal propulsion and a flexible power system to enable unprecedented levels of maneuverability and mission flexibility.
We are seeking an experienced and highly skilled Senior Fluid Systems Engineer to join our team. The ideal candidate will have a strong background in modeling propulsion systems for spacecraft, with expertise in computational fluid dynamics (CFD), particularly using Star-CCM+. This role requires a deep understanding of fluid flow, thermal analysis, and propulsion system dynamics to support the development of advanced spacecraft technologies.
To apply, please send your cover letter and resume to info@portalsystems.space with the email subject: Senior Fluid Systems Engineer Application
RESPONSIBILITIES
- Develop and analyze spacecraft propulsion systems using advanced CFD techniques, with a focus on Star-CCM+.
- Perform detailed 3D CFD simulations to assess fluid flow, heat transfer, and performance characteristics of propulsion components.
- Support the design and optimization of fluid systems, including cryogenic and high-pressure propellants.
- Collaborate with cross-functional teams, including propulsion engineers, thermal analysts, and system architects, to refine system designs.
- Interpret simulation results and provide data-driven recommendations to improve system performance.
- Validate CFD models with experimental or flight test data and refine simulation methodologies accordingly.
- Document analyses, methodologies, and results in technical reports and presentations for internal and external stakeholders.
BASIC QUALIFICATIONS
- Master’s or Ph.D. in Aerospace Engineering, Mechanical Engineering, or a related field.
- Minimum of 5+ years of experience in fluid dynamics analysis and spacecraft propulsion system modeling.
- Extensive experience using Star-CCM+ for detailed 3D CFD simulations.
- Strong understanding of propulsion system components, including injectors, thrusters, and feed systems.
- Proficiency in heat transfer and thermodynamics principles as applied to spacecraft systems.
- Experience with scripting and automation in Star-CCM+ (Java or Python preferred).
- Strong analytical and problem-solving skills with the ability to interpret complex datasets.
- Excellent written and verbal communication skills.
PREFERRED SKILLS AND EXPERIENCE
- Experience with conjugate heat transfer analysis.
- Experience with cryogenic fluid modeling and two-phase flow analysis.
- Familiarity with additional CFD tools (e.g., ANSYS Fluent, OpenFOAM) and multi-physics simulations.
- Experience with nTop software.
- Knowledge of spacecraft propulsion system testing and validation techniques.
- Experience working in a collaborative, multidisciplinary environment.
PREFERRED SKILLS AND EXPERIENCE
COMPENSATION AND BENEFITS
Base salary is just one part of your total rewards package at Portal. You may also be eligible for long-term incentives in the form of company stock, stock options, or long-term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan. You will also receive access to comprehensive medical, vision, and dental coverage. Portal is planning to establish future access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks. Employees typically have 2-3 weeks of paid vacation per year plus company holidays.
ITAR REQUIREMENTS
To conform to U.S. Government export regulations, the applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.
