Jobs at Alumni Ventures Portfolio Companies


R&D Technician

Phase Four

Phase Four

hawthorne, ca, usa
Posted on Friday, June 14, 2024

Propulsion Technician

Phase Four is developing the next generation of in-space propulsion for the rapidly expanding space economy. From large constellations in low earth orbit to new missions and cutting-edge capabilities, our team is the key to mission success. We are an innovative team that’s focused, passionate, and excited about space.

Join us at Phase Four as we design, build and deliver the next generation of in-space propulsion and change the way humanity moves in space.

Job Summary

At Phase Four we are focused on delivering innovative propulsion solutions to meet the needs of tomorrow’s satellite constellations. As Phase Four’s Propulsion Technician, you will provide support to the team in engineering, testing, and acceptance test campaign efforts. Additionally, you will build the hardware that will fly with customers, and will build and maintain the test stands that allow us to prove our technology. The ideal Propulsion Technician will play a critical role in building and advancing our products. This role requires candidate to be on-site at our Hawthorne, CA, location.

Core Responsibilities

  • Fabrication/assembly/integration of fluid systems with valves, regulators, and actuators for maximum reliability in extreme environments at pressures beyond 10,000 psig
  • Responsible for maintaining a high standard of build quality, ensure tests are being run correctly and will directly interface with engineers on the floor
  • Inspect, clean, and prepare flight parts for assembly
  • Technicians in this role will be expected to be capable of understanding component functionality to be able to assist in troubleshooting or recognizing potential issues before they occur and helping to update work instructions to reduce possibilities of future errors
  • Engine, install, assembly, set-up, test and de-assemble production hardware
  • Troubleshoot failure modes and provide photo documentation working directly with engineering to solve problems
  • Collaborate and cooperate with team members to achieve daily, weekly, and monthly targets
  • Maintain a professional and neat work area
  • Perform work according to procedures, specifications and test instructions
  • Maintain lab equipment, such as ovens, tools, vacuum chambers, vacuum pumps, and clean room areas
  • Produce flight hardware in high quantity during production runs
  • Assist engineering teams in writing up build procedures
  • Assist in troubleshooting during production tests
  • Find and report potential issues before they occur

Required Qualifications

  • 3+ years of experience in hardware assembly, test, and/or installation
  • High school diploma or equivalency certificate
  • Attention to detail
  • Familiarity with common production processes and equipment, such as vacuum ovens, clean rooms, vacuum chambers, vibration testing
  • Familiarity-with and correct use of general hand tools.
  • Able to lift 50 lbs unassisted
  • Must be willing to work all shifts, overtime, and/or weekends as needed

Preferred Qualifications

  • 5+ years experience in Aerospace and/or with Space-flight hardware
  • Airframe & Powerplant Certification
  • Experience with heavy equipment
  • Experience with welding, soldering, PCBAs, manual machining, and turning experience all 'great to have's.

Salary Range:

  • $40.00-$43.00 per hour DOE
  • Full time

Our Interview Process:

We understand that interviewing is an art that takes time on both sides of the spectrum. Phase Four's interview process is as follows:

  1. Phone Interview with our Recruiting Team - 15-30 minutes - Where we learn about you, your experience, and what you're looking for in a new role, as well as give you a chance to learn about us, the role, and any questions you may have. If progressing to next step;
  2. Video Interview with the Hiring Manager - 30 minutes - This interview reviews the technical aspects of the role as well as your technical background. This is a great time for both you and the hiring manager to get more in depth about the expectations and technical mindset needed for the role. If progressing to next step;
  3. 'Challenge Question' + In-Person Interview - 90-120 minutes - You will be given a technical question to work through that relates to the role to present during the In-Person interview at our office. Also during this time, you'll get to meet our team, tour our facility, and see what we do at Phase Four! If progressing to next step;
  4. Offer Stage!


  • Competitive salary and equity commensurate with the Los Angeles Aerospace industry.
  • Comprehensive health benefits (Medical, Dental, and Vision) with company contributions for both employees and dependents.
  • 401k with company matching incentive, eligible after your first 90 days of employment.
  • ~10 paid holidays annually.
  • Robust PTO and sick accrual policy.
  • More details on our policies can be found here: https://px.sequoia.com/phasefour


  • To conform to U.S. Government space technology export regulations, applicant must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
  • We are an equal opportunity employer and value diversity at our company. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, or disability status.