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 a highly skilled Propulsion Engineer with extensive experience in spacecraft propulsion systems, particularly in analysis and testing within high-vacuum environments. The ideal candidate will have expertise in testing systems using storable propellants. Proficiency in propulsion modeling software, including ROCETS, TDK, and other industry-standard tools, is preferred.
To apply, please send your cover letter and resume to info@portalsystems.space with the email subject: Senior Spacecraft Propulsion Test Engineer
RESPONSIBILITIES
- Design, analyze, and optimize spacecraft propulsion systems with a focus on storable propellants.
- Conduct and oversee testing of propulsion systems in high-vacuum environments, ensuring system performance, reliability, and safety.
- Utilize propulsion modeling software (e.g., ROCETS or TDK) to simulate and validate system performance.
- Work with storable propellants in test and operational environments.
- Develop and execute test plans, procedures, and data analysis for propulsion system development, qualification and acceptance.
- Collaborate with test facility teams to ensure safe and efficient handling of hazardous propellants.
- Support system-level trade studies, mission planning, and anomaly resolution related to propulsion performance.
- Prepare and present technical reports, documentation, and findings to stakeholders, including internal teams and external partners.
- Mentor junior test engineers and technicians.
BASIC QUALIFICATIONS
- Master’s, or Ph.D. in Aerospace Engineering, Mechanical Engineering, or a related discipline.
- Proven experience in spacecraft propulsion system design, analysis, and testing, specifically with storable propellants.
- Expertise in propulsion modeling and simulation tools (e.g., ROCETS, TDK, or other).
- Strong understanding of fluid dynamics, thermodynamics, and combustion processes in spacecraft propulsion.
- Hands-on experience with high-vacuum test facilities and propellant handling procedures for hazardous chemicals.
- Knowledge of thruster performance evaluation, reaction control systems (RCS), and main engine applications.
- Strong ability to work in cross-functional teams and communicate complex technical concepts effectively.
PREFERRED SKILLS AND EXPERIENCE
- Experience with electric propulsion, hybrid propulsion systems, or green monopropellants.
- Knowledge of mission design, orbital mechanics, and spacecraft system integration.
- Familiarity with regulatory standards, safety protocols, and industry best practices for hazardous propellant handling and spacecraft propulsion.
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.
