System Integration and Test Engineer Sr

Standard Job Description

Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future.

At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity.

We are urgently seeking to recruit an Integration and Test Engineer Sr to be based on-site at our King of Prussia, PA facility. This role will serve the Mission Processing portfolio of programs.

Key Responsibilities:

Test Planning & Execution

• Design comprehensive test plans, cases, procedures, and reports.
• Execute test campaigns in line with specifications and timeline.
• Validate and analyze test data for accuracy and completeness.
• Documentation & Communication
• Author, review and sign off on test documentation (plans, reports, logs).
• Provide clear, concise status updates to stakeholders (internal/external).
• Support Test Readiness Reviews
• System Integration
• Develop and integrate automated test scripts into the broader tool ecosystem.
• Integrate large, complex solutions within the wider system of systems framework.
• Cross Functional Collaboration
• Work within a large, multi disciplinary engineering team to deliver systems on tight deadlines.
• Participate in verification and qualification trials.
• Safety & Security
• Ensure all testing activities being conducted comply with safety protocols.
• Enforce data and equipment security requirements during testing.

The information below includes the standard job description for this position

Plans, implements, tests, documents, and maintains solutions for the integration and testing of mission data processing systems. Synthesizes customer contractual needs and requirements into system test solutions that acknowledge technical, schedule and cost constraints. Establishes functional and technical specifications and standards, solves hardware/software interface problems, defines input/output parameters, and ensures integration of the entire system or subsystem. Reviews, evaluates and derives requirements for testability, develops and directs preparation and execution of comprehensive test plans, procedures and schedules for complete systems and/or subsystems. Coordinates subsystem and/or system testing activities with programs and other organizations. Performs analysis of test results and prepares comprehensive subsystem and/or system level evaluation reports which verify and validate system performance. Writes discrepancy reports and performs integration regression testing to verify/validate incorporated fixes to software, components, subsystems and systems.

Basic Qualifications

• Excellent verbal and written communication – able to produce clear, concise reports and present findings to technical & non‑technical audience
• Proven experience creating test plans, cases, procedures, and reports for system integration/verificatio
• Demonstrated hands‑on experience in qualification/verification trials
• Experience developing strategies to support formal product sell‑off and acceptance
• Ability to investigate, document, and report failures or anomalies in complex systems.
• Active TS/SCI security clearance. Thus US Citizenship is required

Desired Skills

• Experience with requirements verification and feature test
• Experience working on an Agile scrum team
• Experience with automated test
• Experience with Interface Control Documents (ICDs)
• Experience with Cloud technologies and/or Software Factory
• Experience with signal processing
• Full development lifecycle experience
• Experience with Python