Space Simulation Test Engineer

Telemetry Today LLC; Los Angeles, Northern (CA, KY); Hybrid; USD 120,000 - 160,000; Full time

Benefits offered by this job

Equity in Apex

Healthcare

PTO 15–20 days

401(k) with company match

Parental leave

Catered lunch

Office Playa Vista

Stock options

Job summary

Apex Technology, Inc. is seeking an experienced Space Simulation Test Engineer to lead environmental testing and checkouts for spacecraft systems.

You will design and manage test protocols, focusing on vibration, thermal cycling, TVAC, EMI/EMC, and pneumatic pressure tests to ensure reliability across the mission lifecycle. Ideal candidates have 3+ years in aerospace environmental testing, with strong analytical, communication, and cross-functional collaboration skills.

Qualifications

• U.S. Persons status is required for access to export-controlled data.
• Bachelor’s degree in Aerospace/Mechanical/Electrical Engineering or related field, or equivalent experience.
• 3+ years of experience in environmental testing within aerospace.
• Knowledge of MIL-STD-461, GSFC-STD-7000, SMC-S-016, MIL-STD-810, etc.
• Experience with environmental testing equipment and instrumentation (thermocouples, accelerometers, DAQs).
• Strong analytical, written and verbal communication skills; ability to work in a multidisciplinary team.

Responsibilities

• Develop, execute, and manage environmental test plans and procedures (vibration/shock, thermal cycling/TVAC, EMI/EMC, pneumatic pressure).
• Set up, operate, and maintain environmental testing equipment (vibration shakers, thermal chambers).
• Perform production and qualification level environmental tests, including functional checks.
• Analyze test data, interpret results, and generate comprehensive reports.
• Troubleshoot issues across spacecraft and test equipment; collaborate with cross-functional teams.
• Improve testing processes for accuracy and efficiency; provide technical guidance to engineers and technicians.

Skills

Aerospace testing

Environmental testing

Instrumentation

Analytical skills

Communication

Team collaboration

Python

LabVIEW

Education

Bachelor's degree in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, or related field

Tools

Python

LabVIEW

Job description

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.

We’d love for you to join us on our mission of providing humankind access to the galaxy beyond our planet.

About the Role

Apex is seeking an experienced and detail-oriented Space Simulation Test Engineer specializing in environmental testing and checkouts. Candidates should have extensive knowledge of vibration & shock testing, thermal cycling & TVAC testing, EMI/EMC testing, and pneumatic pressure testing. This candidate will play a critical role in ensuring the reliability and performance of our space systems and supporting components through testing procedures. You will be responsible for designing, implementing, and managing test protocols & equipment that focus on simulating environmental (Dynamic & Climatic) conditions our spacecrafts and components will encounter during their lifecycle

Responsibilities:

Develop, execute, and manage test plans, procedures, protocols, and requirements for a variety of different types of environmental testing/checkouts – including vibration & shock testing, thermal cycling & TVAC testing, EMI/EMC testing, and pneumatic pressure testing.

Extensive knowledge and participation in test setups.

Scope, purchase, set-up and maintain various pieces of environmental testing equipment (i.e. Vibration Shakers, Thermal Chambers, etc.)

Performance of both production & qualification level environmental testing, including functional and performance checks, to ensure compliance.

Analyze test data, interpret results, and generate comprehensive test reports.

Diagnose, troubleshoot, and action issues across several kinds of systems on both spacecraft and test equipment

Collaborate with cross-functional teams including production, design, and quality assurance to identify & resolve issues

Continuously improve testing processes and methodologies to enhance both accuracy and efficiency.

Provide technical support and guidance to engineers and technicians.

Stay updated on industry trends, technologies, and best practices in environmental testing.

Requirements:

U.S. Persons status is required as this position needs to access export-controlled data

Bachelor’s degree in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, or a related field, or equivalent experience.

3+ years of experience in environmental testing within the aerospace industry.

Strong knowledge of aerospace testing standards, protocols, and regulations such as MIL-STD-461, GSFC-STD-7000, SMC-S-016, MIL-STD-810, etc.

Experience with operating and maintaining environmental testing equipment.

Experience and understanding of instrumentation used during environmental testing (i.e. thermocouples, accelerometers, DAQ’s, etc.).

Excellent analytical skills and attention to detail.

Strong written and verbal communication skills.

Ability to work collaboratively in a multidisciplinary team environment.

Differentiators:

Experience with avionics functional and/or pneumatic pressure testing

Experience in programming (Python, LabVIEW, etc.)

Experience bringing environmental testing to a high production rate

Knowledge of data acquisition and analysis software

#LI-HC1

Why Join Apex?

Apex believes in creating a work environment that you look forward to embracing every day. Our employees love working at Apex, and we want you to love it too. We're a fast-growing startup that has raised more than $500M in funding, and we invest heavily in our people from day one.

What We Offer For Full-time Employees:

Shared upside: 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

Competitive 401(k) plan with generous matching - 100% match on first 3%, 50% on next 2%

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

Daily catered lunch and unlimited snacks to keep you fueled throughout the day

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

Your dream desk setup and all the tools you need to be your most productive self

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

Real impact opportunity: Work alongside experts from aerospace, new space, and other cutting-edge industries to make a lasting difference

Additional Information:

Compensation ranges are set by role, level, location, and alignment with market data. A candidate's specific level and base pay are determined case by case and may vary with job-related skills, education, experience, technical capabilities, and internal equity. Beyond base salary, full-time hires are also eligible for long-term incentives in the form of stock options, along with medical, dental, and vision coverage and a 401(k) retirement plan.

Apex's work is governed by U.S. export control laws, including the International Traffic in Arms Regulations (ITAR) and the Export Administration Regulations (EAR). To be eligible for this role, applicants must either (1) qualify as a U.S. Person, meaning a U.S. citizen or national, a lawful permanent resident (green card holder), a refugee admitted under 8 U.S.C. § 1157, or an individual granted asylum under 8 U.S.C. § 1158, or (2) be able to obtain the required export authorizations from the U.S. Department of State, the U.S. Department of Commerce, or another applicable U.S. government agency. You can learn more about ITAR here .

Equal Opportunity Employer

Apex Technology, Inc. is an Equal Opportunity Employer. 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.