Integration and Test Engineering

Spacecraft represent the most pressing unmet need across the entire aerospace industry. As more launch vehicles come online and the cost to orbit decreases, more companies launching payloads to space continue to emerge.

For the first time in history, this influx of payload companies combined with reduced launch costs has resulted in a massive increase in need for commercial spacecraft platforms, known as satellite buses. These buses hold the payloads of our customers and are flown on launch vehicles.

Apex manufactures these satellite buses at scale using a combination of software, vertical integration, and hardware that is designed for manufacturing. Our spacecraft enable the future of society: ranging from earth observation to communications and more.

As an Integration & Test Responsible Engineer, you will be responsible for turning mature satellite platform designs into flight-ready systems. In this role, you will live at the intersection of engineering, test, and production. Oversee and support component and system-level testing, focusing on functional and performance testing

Develop, review, and approve system level test procedures, ensuring key performance indicators are appropriately covered in each test and success criteria are correctly defined

Analyze test data and lead anomaly investigation and resolution. Lead system level test improvements by identifying and implementing opportunities for increased automation, refinement of test methods, and upgrades to test equipment in collaboration with the test engineering & production teams.

Maintain component and system-level verification artifacts, test reports, and compliance documentation for Apex-internal and end customer use

Collaborate closely with production, test, quality, and vehicle engineering teams to continuously evaluate & improve testing

Communicate system status, risks, and issues clearly to stakeholders including engineering, production, and mission management

Engage with customers to methodically share test results, anomalies, and status in collaboration with mission management

Bs in Aerospace, Mech, systems, or related field

Strong problem-solving, organization, and communication skills as applied to company-internal and external customer‑facing discussions.

Familiarity with root cause analysis methods such as fishbone diagrams, common cause analyses, and fault trees.

We're a fast-growing startup backed by $200M in Series D funding, and we invest heavily in our people from day one.

What We Offer For Full‑time Employees:

Receive equity in Apex, letting you benefit from the work you create

Best‑in‑class healthcare: 100% company-paid medical, dental, and vision for you and your dependents, plus $100k life insurance at no cost

Comprehensive PTO package to reset and recharge - starting at 15 days vacation, growing to 20+ days annually, plus 10 paid holidays

8 weeks paid parental leave plus childcare reimbursement up to $350/day for work‑related travel

Vibrant community: Monthly office BBQs, pickleball tournaments, run club, and social gatherings for you and your family

World‑class Playa Vista office with EV chargers, with the benefit of in‑person collaboration with amazing coworkers and flexibility to integrate work and life

We celebrate diversity and are committed to creating an inclusive environment for all employees. Candidates and employees are always evaluated based on merit, qualifications, and performance. We will never discriminate on the basis of race, color, gender, national origin, ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.

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