Freelance Full Stack Developer React Python Jobs in Decatur, IN

Bachelor's degree in Engineering, or a related Science or Mathematics field, plus a minimum of 8 years of relevant work experience; or Master's degree, plus a minimum of 6 years of relevant experience.

CLEARANCE REQUIREMENTS:
Department of Defense Secret security clearance required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required.

Required Qualifications

• Demonstrated I&T experience on complex hardware/software systems— support of test plan authorship, execution, anomaly resolution, and formal reporting.
• Hands-on System-of-Systems integration experience resolving interface, timing, and interoperability issues across dissimilar subsystems.
• Multi-disciplinary integration experience spanning autonomy, RF communications, UGVs, small UAS, electronic warfare, munitions, and fuzes.
• Experience with bench and field instrumentation: oscilloscopes, spectrum analyzers, signal generators, and data acquisition systems.
• Python scripting for test automation and data reduction.
• Experience with use-case-driven or mission-thread-based V&V campaigns with formal requirements traceability.
• Experience in an Agile environment with Jira and Confluence.
• Ability to support authoring clear, audit-ready technical documentation for engineering and government customer audiences.
• Active DoD Secret security clearance; U.S. citizenship required.
• Willingness to travel up to 25% to customer and contractor test ranges (event-driven, typically 1-2 weeks at a time).

Preferred Qualifications

• Defense/aerospace experience with military standards (MIL-STD-810, MIL-STD-461, MIL-STD-1316, MIL-STD-882E, MIL-STD-2105).
• RF/communications test experience: waveforms, link testing, tactical/mesh networks, GPS-denied/contested-spectrum operations.
• Electronic warfare test experience: signal collection, jamming/countermeasure characterization, range testing.
• Autonomy, UGV, and small UAS integration and test—perception, navigation, C2, and human-machine teaming.
• Munitions and fuzing experience: setback survivability, safe-and-arm, warhead/effects characterization, lethality testing.
• Environmental and qualification test experience (vibration, shock, thermal, EMI/EMC).
• Test automation framework experience (LabVIEW, TestStand, or equivalent).
• Linux test environments and CI/CD for embedded software test.
• MBSE and digital-engineering traceability tools; experience with VCRMs or VVPs for DoD milestone reviews.
• Use of Artificial Intelligence (AI) tools to develop I&T artifacts and capabilities.
• Active DoD Top Secret clearance.

Key Responsibilities

• I&T Lifecycle Ownership: Support the full test and integration lifecycle—plan, integrate, execute, resolve anomalies, and report—for multi-subsystem System-of-Systems capabilities.
• SoS Integration: Support the integration and test strategy; support integration of dissimilar subsystems (autonomy, RF/comms, UGV, sUAS, EW, munitions, and fuzing) into a cohesive, demonstrable capability; resolve cross-subsystem interface, timing, and interoperability issues.
• Use-Case & V&V: Support operational use cases and mission threads; develop verification scenarios that exercise end-to-end system behavior against ConOps with formal traceability from requirements through test evidence.
• Test Planning: Support authoring of test plans and procedures across the full test taxonomy—integration, functional, scenario, environmental, acceptance, regression, and qualification—with defined pass/fail criteria.
• Field Execution & Anomaly Resolution: Plan and instrument bench and field tests, lead range execution, and resolve test anomalies to the component level across electronic, mechanical, RF, and software assemblies.
• Test Automation: Define and stand up test automation and data acquisition; script data reduction and post-test analysis (Python); develop automated test sequences where applicable.
• Documentation & Configuration Control: Support authoring and maintain integration guides, ICDs, test procedures, lessons-learned registers, and as-tested configuration baselines; ensure documentation is audit-ready for government milestone reviews.
• Leadership & Reporting: Support test activities across a cross-functional, multi-vendor team in an Agile workflow. Present test readiness reviews, test reports, and validation evidence to program leadership and government customers.

Tools & Environment

• Python, CAMEO (requirements traceability), Confluence, MATLAB/Simulink, Git, Jira, LabVIEW/TestStand.

Workplace Options:
This position is fully onsite, you will be a part of the Ft Wayne, Indiana team. 

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General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation. With a global team of 12,000+ top professionals, we partner with the best in industry to expand the bounds of innovation in the defense and scientific arenas. Given the nature of our work and who we are, we value trust, honesty, alignment and transparency. We offer highly competitive benefits and pride ourselves in being a great place to work with a shared sense of purpose. You will also enjoy a flexible work environment where contributions are recognized and rewarded. If who we are and what we do resonates with you, we invite you to join our high-performance team!

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans