Propulsion Engineer II — Hypergol Engines

Firefly Aerospace, Inc.; Cedar Park (TX); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

Health, dental, and vision plans

Relocation benefits

Educational reimbursement

Flexible PTO

Job summary

Firefly Aerospace, Inc. in Texas is seeking a Propulsion Engineer II to join the Spectre Engine team. You will develop hypergol engines, own propulsion systems, and collaborate across structures, fluids, and avionics through design, analysis, manufacturing, and testing phases.

The role emphasizes ownership of propulsion hardware, process development, and reliability improvements while working in a fast-paced environment with a strong safety culture.

Qualifications

• BS in Aerospace Engineering or related engineering discipline.
• 3+ years of experience working on an aerospace engine or fluid system.
• Strong engineering fundamentals in fluids, thermodynamics, and mechanics.
• Experience in Siemens NX or equivalent CAD program.
• Comprehension of design fundamentals including tolerancing, ASME Standards, ASTM, and GD&T.
• Ability to effectively work in a multi-disciplinary team and provide technical guidance and insight.

Responsibilities

• Serve as Responsible Engineer for in-space propulsion hardware including main and attitude control engines, valves, and propellant tanks.
• Develop new and innovative design concepts for propulsion integration and operations that reduce complexity and maximize reliability within budget
• Assist in the development of manufacturing, integration, and test processes, including work instructions, test procedures, development testing, and initial build support
• Act as the primary point of contact for design, analysis, and operations of spacecraft fluid systems
• Perform flight operations as a primary operator for fluids and propulsion systems
• Own and execute development, qualification, and acceptance testing of flight hardware
• Execute design for manufacturability changes to enhance production efficiency and vehicle reliability
• Identify system risks and conduct corresponding trade studies to ensure successful vehicle operation
• Drive development of automation and test data analysis tools

Skills

Analytical skills

Team collaboration

Problem solving

Education

BS in Aerospace Engineering

Master’s Degree (preferred)

Tools

Siemens NX

Test instrumentation

Job description

Firefly Aerospace, Inc. in Texas is seeking a Propulsion Engineer II to join the Spectre Engine team. You will develop hypergol engines, own propulsion systems, and collaborate across structures, fluids, and avionics through design, analysis, manufacturing, and testing phases.

The role emphasizes ownership of propulsion hardware, process development, and reliability improvements while working in a fast-paced environment with a strong safety culture.