Senior Flight Dynamics Engineer I

Location: Onsite at hirify.global's site in Littleton, Colorado, United States. U.S. citizenship is required due to program requirements and ITAR regulations.

Salary: $120,000–$160,000 USD per year, plus potential stock and cash incentives.

Company

hirify.global is an end-to-end space company developing rockets, spacecraft, launch systems, and critical spaceflight subsystems.

What you will do

• Develop and analyze launch vehicle and spacecraft trajectories for ascent, orbit insertion, and orbital maneuvers.
• Perform orbital propagation, rendezvous planning, station-keeping analysis, and collision-avoidance design.
• Support launch-window analysis, delta-V budgeting, mission design, and contingency planning.
• Interface with flight software and GNC teams to validate and optimize guidance profiles.
• Generate trajectory data products and support mission readiness reviews.
• Support real-time mission operations, anomaly response, post-launch analysis, and in-house simulation infrastructure.

Requirements

• Bachelor's degree in Aerospace, Space Systems, Engineering, or Applied Physics.
• 5+ years of experience in mission design or flight dynamics.
• Knowledge of orbital mechanics, spaceflight dynamics, maneuver design, orbit determination, and Kalman filtering.
• Experience with STK, Astrogator, GMAT, Monte, Copernicus, or equivalent mission-analysis tools.
• Python software development, Git or equivalent version control, and Jira or equivalent project-management software.
• U.S. citizenship is required; the role is subject to U.S. Government space-technology export regulations.

Nice to have

• Master's degree in Aerospace Engineering or a related field.
• Active Secret or TS/SCI clearance.
• Monte Carlo numerical simulation experience.
• Orbit determination experience with ODTK, Orekit, or equivalent.
• Team or software project-management experience and the ability to prioritize work under time pressure.

Culture & Benefits

• Medical, dental, and vision insurance.
• 401(k) retirement plan options.
• Paid vacation, holidays, sick leave, and parental leave.
• Potential company stock, cash incentives, and discounted stock purchase options.
• Work involves collaboration across Systems, Ground Software, Electrical, Avionics, Flight Software, Thermal, Propulsion, and GNC disciplines.