Senior Flight Dynamics Engineer — Trajectory Design

Firefly Aerospace; Cedar Park, Northern (TX, KY); Hybrid; USD 150,000 - 210,000; Full time

Benefits offered by this job

Health, dental, and vision plans

Parental leave

Educational reimbursement

Short term disability

Flexible PTO

Job summary

Firefly Aerospace in Cedar Park, Texas, is seeking a Senior Flight Dynamics Engineer to design and optimize spacecraft trajectories for LEO and cislunar missions. You will develop targeting algorithms, error budgets, and act as a flight dynamics operator while supporting cross‑functional teams.

Ideal candidates will have advanced degrees in aerospace fields, deep expertise in orbital mechanics, and extensive experience with trajectory design tools (STK/GMAT/FreeFlyer).

Qualifications

• For this Senior role, a strong background in flight dynamics and mission design is required.
• Experience supporting operational spacecraft missions and maneuver planning.
• Proficiency with Python, Linux, and key trajectory tools.

Responsibilities

• Optimize spacecraft trajectories to meet mission requirements and constraints.
• Design mission concepts from concept to operations.
• Develop targeting algorithms and maneuver plans.
• Create and analyze maneuver error budgets and contingencies.
• Mentor junior engineers and guide cross‑functional teams.

Skills

Aerospace engineering

Flight dynamics

Python

Linux

Trajectory design

Maneuver planning

STK/GMAT/FreeFlyer

Mentoring

Education

Bachelor's in aerospace engineering

Master's degree

PhD

Tools

STK

FreeFlyer

GMAT

MONTE

Job description

Firefly Aerospace in Cedar Park, Texas, is seeking a Senior Flight Dynamics Engineer to design and optimize spacecraft trajectories for LEO and cislunar missions. You will develop targeting algorithms, error budgets, and act as a flight dynamics operator while supporting cross‑functional teams.

Ideal candidates will have advanced degrees in aerospace fields, deep expertise in orbital mechanics, and extensive experience with trajectory design tools (STK/GMAT/FreeFlyer).