System Integration & Test Engineer - HWIL/SWIL

We’re ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life—from advancing space exploration and life-saving medical devices to building autonomous electric vehicles. With 3,000+ experts across North America, we partner with leading companies in aerospace, medical devices, robotics, automotive, commercial vehicles, EVs, rail, and more.

As part of the global ALTEN Group—57,000+ engineers in 30 countries—we deliver across the entire product development cycle, from consulting to full project outsourcing.

When you join ALTEN Technology USA, you’ll collaborate on some of the world’s toughest engineering challenges, supported by mentorship, career growth opportunities, and comprehensive benefits. We take pride in fostering a culture where employees feel valued, supported, and inspired to grow.

As System Integration & Test Engineer you will be responsible for;

• Support satellite verification and validation activities across Flatsat, HWIL, SWIL, and simulator environments by mapping technical requirements into effective test strategies and plans.

• Develop system‑level and subsystem‑level test plans, procedures, and automated test scripts to verify software, hardware, and integrated system performance.

• Design and build automated test systems, ground support equipment, and tooling to improve workflow, test coverage, and production efficiency.

• Serve as Test Conductor for formal validation events, leading dry runs, readiness assessments, and execution of scripted validation sequences.

• Write automated test scripts—particularly TCL‑based scripts—for command‑and‑control environments and maintain reusable test frameworks.

• Troubleshoot complex hardware/software interactions, perform detailed data analysis, and generate test reports, non‑conformance records, and closure documentation.

• Coordinate cross‑functional efforts across engineering, integration, and operations teams to support planning, readiness, and execution of test campaigns.

• Support system architecture activities including trade studies, requirements updates, and development of key mission‑level artifacts such as CONOPS, algorithm descriptions, and interface documents.

Qualifications;

• Bachelor’s degree in a STEM field required; Master’s degree preferred.

• 1–3+ years of experience supporting aerospace hardware or software development, including design, integration, verification, or system‑level testing.

• Experience with Flatsat, HWIL/SWIL, simulators, or similar integration environments.

• Proficiency with test automation or scripting (TCL, Python, or similar), preferably within command‑and‑control systems.

• Familiarity with systems engineering workflows such as requirements traceability, verification planning, and test documentation.

• Ability to interpret schematics, mechanical drawings, CAD models, cable/wire lists, and engineering documentation.

• Understanding of space mission lifecycle phases including requirements development, design, build, test, and operations.

• U.S. citizenship required; able to obtain and maintain a government security clearance.

Location: Merritt Island, FL

Salary Range: $90,000 - $135,000

The actual salary offered is dependent on various factors including, but not limited to, location, the candidate’s combination of job-related knowledge, qualifications, skills, education, training, and experience

Note: Due to the nature of the work, only US Persons (citizens or permanent residents) need apply for this position.

ALTEN Technology is an Equal Opportunity Employer. Our Policy is to extend opportunities to qualified applicants and employees on an equal basis regardless of an individual’s age, race, color, sex, religion, national origin, disability, sexual orientation, gender identity/expression or veteran status.

Please beware of job seeker scams and see this important notice on our careers page for more information about our recruiting process.

Compliance Notice: Alten USA is a federal contractor subject to the requirements of the Vietnam Era Veterans’ Readjustment Assistance Act (VEVRAA) and Executive Order 11246. We are an Equal Opportunity Employer and consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

Drug Screening Requirement: As a federal contractor, Alten USA maintains a drug-free workplace. All candidates selected for employment will be required to successfully complete a pre-employment drug screening as a condition of hire.