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# Propulsion Systems Analyst II

- **Company:** Rocket Lab
- **Location:** Long Beach, CA, United States
- **Experience:** Experienced
- **Salary:** $136,075 - $168,825
- **Contract:** Permanent contract
- **Skills:** Computational Fluid Dynamics, Systems Analysis, Simulation Software, Data Processing
- **Published:** November 14, 2026
- **Apply:** https://www.disabledperson.com/jobs/76487417-propulsion-systems-analyst-ii

## About the Role

* Bachelor's degree in mechanical engineering, aerospace engineering or related field
 * 2+ years experience with fluids system analysis of a cryogenic liquid propulsion rocket engine.
 * Demonstrated expertise using or building a lumped parameter fluid analysis tool.
 * Knowledge of fundamentals in fluid dynamics, thermodynamics, and fluid system design., * Advanced degree in a fluid mechanics-heavy field
 * 4+ years experience designing and operating an engine system or components for a staged combustion rocket engine.
 * Experience with ROCet Engine Transient Simulation Software (ROCETS)
 * Experience with Methyl/LOX fluid systems.

## Description

The Propulsion Systems Analyst is responsible for the creation, maintenance, of engine transients and steady state models as well as owning the overall performance of the startup and shutdown of the Archimedes Engines. They will help develop startup and shutdown campaigns for all the engines in the Archimedes engine family. They will also assist in the maintaining engine performance models used for vehicle level analysis., * Develop and maintain startup and shutdown valve sequences as well as test campaigns for the verification and engine transients.

 * Support test site and vehicle transients test campaigns with data review, model grounding, and valve sequence changes for engine testing.
 * Serve as the technical expert engine POC for all engine transients.
 * Work closely with other engine leads to ensure to communicate subcomponent needs as well as vehicle system needs to support healthy engine transients.
 * Creation and maintenance of data processing tools