Senior Software Test Engineer (Flight Safety Systems)

Joint Activities

$135K — $216K *
Aerospace & Defense
15+ years of experience
Job Overview by Ladders

Qualifications

  • Minimum 16 years experience without a degree, 14 years with AS/AA, 12 years with BS/BA, 10 years with MS/MA, or 7 years with Ph.D.
  • Active TS/SCI clearance with an adjudicated polygraph suitable for national security environments.
  • 2+ years of experience in Flight Safety or astrodynamics testing tools like STK or ASW SuperCombo, or STK Level 2 certification preferred.
  • 6+ years of experience in space operations, conjunction assessment, or flight safety system testing.
  • Strong knowledge of orbital mechanics and conjunction analysis methods.

Responsibilities

  • Lead integration and verification testing for legacy and next-gen Flight Safety systems.
  • Design and document comprehensive software test plans and validation scenarios.
  • Utilize Bash and Python scripts for automated testing in classified environments.
  • Validate system performance through conjunction assessments and proximity analysis.
  • Perform pre- and post-launch validation of trajectory data for collision risk assessment.
  • Operate analysis tools to ensure input handling and output accuracy.
  • Collaborate closely with engineers and stakeholders to meet operational safety requirements.

Benefits

  • Opportunity to shape testing methodologies in a critical national security context.
  • Work with leading-edge technology in space operations and safety systems.
  • Engage in high-stakes missions with direct implications for national security.
  • Collaborative environment with cross-functional teamwork among software engineers and other experts.
  • Ongoing professional development through hands-on instruction and engaging training materials.
Full Job Description
Responsibilities

As a Senior Software Test Engineer supporting Flight Safety (FS) systems within a national security space mission environment, you will be responsible for testing, validating, and integrating mission-critical software tools used to perform Flight Safety operations. You will ensure system reliability and operational readiness for tools that support conjunction assessment (CA), space object tracking, and ground threat deconfliction analysis.

In this role, you will serve as a technical SME focused on test planning, system validation, integration testing, and operational verification of FS software tools used in 24/7 operations. You will work closely with developers, system engineers, and operators to ensure that new capabilities and data sources are properly integrated into both legacy and evolving systems with minimal operational risk.

You will also support mission protection activities by ensuring systems accurately process resident space object (RSO) catalogs, ephemeris data, and trajectory inputs to identify collision risks and support decision-making for space operations stakeholders. A strong understanding of orbital mechanics and astrodynamics tools will be used to design effective test cases and validate system outputs.

Additionally, you will contribute to improving testing methodologies, system workflows, and operational procedures (TTPs) by identifying software issues, validating fixes in controlled environments, and supporting updates to training materials based on system changes and test outcomes.

 

Key Responsibilities

  • Lead integration and verification testing of new data sources and software capabilities within legacy and next-generation FS systems
  • Design, execute, and document software test plans, regression tests, and operational validation scenarios in test and pre-production environments
  • Use Bash and Python scripts to support automated testing, data validation, troubleshooting, and system analysis in Linux-based classified environments
  • Validate system performance by executing conjunction assessment and screening workflows, including RSO-to-RSO and RSO-to-ground proximity analysis (e.g., ASW “SuperCombo”-type runs)
  • Perform pre- and post-launch validation of TLEs, state vectors, and maneuver ephemeris data against cataloged RSOs to ensure collision risk mitigation logic is functioning correctly
  • Operate and validate orbit propagation and analysis tools (e.g., STK or ASW-type systems), ensuring correct input handling, output accuracy, and reporting consistency
  • Support defect identification, root cause analysis, and issue tracking for software anomalies discovered during test and operational use
  • Participate in test readiness reviews, flight safety meetings, and operational training/exercise events
  • Develop and maintain test documentation, validation reports, and user/training materials, and provide hands-on instruction (OJT) to team members
  • Collaborate with engineers, operators, and external stakeholders to ensure system changes meet operational requirements and safety thresholds

 

***This position is contingent upon award of contract***

Qualifications

Minimum Requirements

  • Minimum of 16 years w/o a degree or 14 years with AS/AA or 12 years with BS/BA; or 10 years with MS/MA; or 7 years with Ph.D
  • Active TS/SCI with adjudicated polygraph

Preferred Qualifications

  • 2+ years of experience with Flight Safety or astrodynamics test tools (e.g., STK, ASW SuperCombo), or STK Level 2 certification
  • 6+ years of combined experience in space operations, conjunction assessment, or flight safety systems testing
  • Strong understanding of orbital mechanics, conjunction analysis methods, and space domain awareness concepts
  • Experience validating or testing systems involving RSO catalogs, ephemeris data, and orbital propagation models
  • Ability to write and interpret Bash and Python scripts for test automation and data analysis
  • Familiarity with national security space mission environments (e.g., NRO-related systems and workflows)

Worklocation: 

 

Target Salary Range$135,000 - $216,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

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