39.0000° N, 98.0000° W

Loft Orbital

Sr. Test Engineer

Golden, CO115000–180000 USD per yearPosted Jul 21, 2026
Disciplineengineering
Workplace typeon-site
EmploymentFull Time

Wanna join the adventure?

As our new RF AIT (Radio Frequency Assembly, Integration, and Test) Engineer, you will play a pivotal role in the development, assembly, integration, and testing of RF (Radio Frequency) systems and components for Loft space missions. This role requires a strong background in RF engineering, electrical engineering, and space technology.

About the Role:

* Lead the assembly and integration of RF subsystems and components into the spacecraft.

* Ensure proper installation, wiring, and connectivity of RF hardware according to design specifications.

* Develop test plans and procedures for RF systems and components.

* Conduct comprehensive RF tests to verify system performance, including sensitivity, signal-to-noise ratio, and frequency response.

* Troubleshoot and resolve RF hardware issues during testing.

* Prepare RF hardware for environmental testing, including thermal vacuum testing, vibration testing, and electromagnetic interference (EMI)/electromagnetic compatibility (EMC) testing.

* Analyze and report on environmental test results to ensure RF systems meet specified requirements.

* Collaborate with RF system architects and design engineers to perform system analysis and simulations for performance optimization.

* Work closely with cross-functional teams, including electrical engineers, mechanical engineers, and system engineers, to integrate RF systems into spacecraft successfully.

* Hands-on experience with space hardware and spaceflight antennas, with a strong understanding of design intent.

* Proficiency in test engineering, including test design, validation, execution, and troubleshooting.

* Experience with tests such as EMI/EMC, GNC GPS testing, and TTNC (tracking telemetry and control).

* Knowledge of relevant software for testing and analysis.

* Familiarity with electrical check-out procedures and environments, though emphasis lies more on rigorous testing rather than environmental testing.

Must Haves:

* Bachelor’s degree in Electrical Engineering, Aerospace Engineering, or a related field. Master’s degree preferred.

* Minimum of 5 years of experience in RF subsystem testing and integration.

* Proven experience in RF system integration, simulation, and performance analysis.

* Experience in payload RF systems, transceiver, and amplifier design.

* Proven experience with RF testing tools (VNA, Spectrum Analyzer, RF chamber)

* Knowledge in EMI/EMC characterization is a real plus for this position

* Excellent communication and teamwork skills.

Nice to Haves:

* Experience in Signal Processing algorithms

Some of Our Awesome Benefits:

* 100% company-paid medical, dental, and vision insurance option for employees and dependents

* Flexible Spending (FSA) and Health Savings (HSA) Accounts offered with an employer contribution to the HSA

* 100% employer paid Life, AD&D, Short-Term, and Long-Term Disability insurance

* Flexible Time Off policy for vacation and sick leave, and 12 paid holidays

* 401(k) plan and equity options

* Daily catered lunches and snacks in office

* International exposure to our team in France

* Fully paid parental leave; 14 weeks for birthing parent and 10 weeks for non-birthing parent

* Carrot Fertility provides comprehensive, inclusive fertility healthcare and family-forming benefits with financial support

* Off-sites and many social events and celebrations

* Relocation assistance when applicable

_\*_ _Research shows that while men apply to jobs where they meet an average of 60% of the criteria, women and other underrepresented people tend to only apply when they meet 100% of the qualifications. At Loft, we value respectful debate and people who aren’t afraid to challenge assumptions. We strongly encourage you to apply, even if you don’t check all the boxes._

Who We Are

Loft: Space Made Simple.

Founded in 2017, Loft provides governments, companies, and research institutions with a fast, reliable, and simple way to deploy missions in orbit.

We integrate, launch, and operate spacecraft, offering end-to-end missions as a service across Earth observation, IoT connectivity, on-orbit AI, national security missions, and more. Leveraging our existing space infrastructure and an extensive inventory of satellite buses, Loft is reducing years-long integration and launch timelines to months. With more than 30 missions flown, Loft’s flight heritage and proven technologies enable customers to focus on their mission objectives.

With a growing fleet on track to reach 30 satellites by 2027, we are scaling up quickly across our offices in San Francisco, CA | Golden, CO | and Toulouse, France to meet accelerating demand for space infrastructure.

_As an international company your resume will be reviewed by people across our offices so please attach a copy in English._

Compensation (from employer):

115000–180000 USD per year

Skills and experience

RF subsystem testingRF system integrationRF testing toolsVNASpectrum Analyzer