Propulsion Test Technician - Operations

Relativity Space

Relativity Space

John C. Stennis Space Center, MS, USA
Posted on Saturday, August 6, 2022

Company Overview:

Relativity is the first and only company to automate aerospace manufacturing by integrating intelligent robotics, software, and proprietary metal 3D printing technology. Disrupting 60 years of aerospace, Relativity offers a radically simplified supply chain, building a rocket with 100x fewer parts in less than 60 days. Our long-term goal is to upgrade humanity’s industrial base on Earth and on Mars.


The Stennis team at Relativity Space is responsible for designing, building, and operating world-class test stands to support the Terran 1 stages, engines, and propulsion components. As part of this team, you will help build and operate massive outdoor test stands at the historic Stennis Space Center on the Gulf Coast, the largest rocket engine test complex in the country. Unique to this location, you will have the opportunity to get hands-on the fully integrated engine and stage assemblies, push the hardware to the limits, and witness rocket engines firing up close and personal! This team is critical to the launch success of Terran 1, among many other firsts! Check out this video to learn more about the Stennis test team.

What you’ll do:

Our propulsion test technicians perform functions in daily test operations supporting engine testing, building of new test stand facilities, and modifying and retrofitting existing test stands. Our Operations team is responsible for operating active test stands and integration of flight hardware and avionics systems.


  • Inspect, assemble, and perform checkouts on test and flight hardware
  • Build, checkout, and install test equipment and harnessing for a wide array of instrumentation to include sensors that measure temperature, pressure, flow, displacement, and vibration
  • Ensure that all engine test stand related equipment and services are performed on time and safely
  • Operate high pressure panels, troubleshoot anomalies, torque assemblies, fabricate feed lines, and run data acquisition systems
  • Clean tools, valves, regulators, instrumentation, and other components
  • Perform stand and test article functional checks
  • Self-starter that performs work according to procedures, specifications, and test instructions
  • Operate and maintain propulsion test hardware
  • Monitor and maintain an inventory of consumables, tooling, and equipment

What you Need to Know:

High school diploma or GED and minimum 2+ of experience working with aerospace, aviation, avionics, instrumentation, and/or mechanical systems.

  • Experience with assembly, installation, troubleshooting, and repair of delicate precision machined components
  • Ability to follow highly detailed procedures and well document work performed
  • Understanding of tool control and Foreign Object Debris (F.O.D.) preventative measures and policies
  • Ability to operate a wide range of hand tools to modify and install fluid systems and associated test hardware
  • Operational knowledge of electronic circuits and sensor types used to measure temperature, pressure, flow, displacement, and vibration
  • Ability to read and understand blueprints, P&ID’s, CAD drawings and schematics
  • Ability to work independently and part of a team and meet aggressive schedules
  • Operation knowledge of precision tooling used for measuring, torqueing, crimping, and/or inspecting
  • Must be able to lift a minimum of 50 lbs unassisted
  • Must be able to stand for extended periods
  • Must be able to stoop, bend, crawl, and maneuver in tight spaces
  • Strong written and verbal communication skills
  • This position will require occasional night shifts and possible travel

Nice to Haves but Not Required:

  • Associates Degree and minimum 5+ years of experience working on fluid systems, rocket propulsion, industrial cryogenic systems, instrumentation, and/or avionics systems
  • Experience with aviation and/or aerospace test procedures

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Relativity Space offers competitive salary and equity, a generous vacation policy, an annual L&D stipend and more!