Sr. Test Engineer

Cerebras; Golden (CO); On-site; USD 115,000 - 180,000; Full time

Job summary

Loft: Space Made Simple. is seeking an RF AIT Engineer to lead RF subsystem assembly, integration, and testing for spacecraft. Candidates should have a strong RF/electrical background and space technology experience.

The role involves developing test plans, performing comprehensive RF tests, troubleshooting hardware, and coordinating with cross-functional teams to ensure successful integration. A bachelor’s degree in electrical or aerospace engineering (master’s preferred) and 5+ years of RF

Qualifications

• Bachelor’s degree in Electrical or Aerospace Engineering.
• Minimum 5 years of RF subsystem testing and integration.
• Experience with RF system integration, simulation, and performance analysis.
• Experience in payload RF systems, transceiver and amplifier design.
• Experience with RF testing tools (VNA, Spectrum Analyzer, RF chamber).
• EMI/EMC characterization knowledge is a plus.
• Excellent communication and teamwork skills.

Responsibilities

• Lead assembly/integration of RF subsystems into the spacecraft.
• Develop test plans/procedures for RF systems.
• Conduct RF tests (sensitivity, SNR, frequency response).
• Troubleshoot RF hardware during testing.
• Prepare RF hardware for environmental testing (TVAC, vibration, EMI/EMC).
• Collaborate with RF system architects and design engineers.
• Work with cross-functional teams to integrate RF systems into spacecraft.
• Hands-on space hardware experience with spaceflight antennas.

Skills

RF testing

RF integration

System simulations

Signal analysis

Education

Bachelor's in Electrical Engineering

Master's degree preferred

Tools

VNA

Spectrum Analyzer

RF chamber

Job description

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

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.

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.

115000 - 180000 USD a year

State law requires us to tell you the base compensation range for this role, which is $115,000 - $180,000 per year. This is determined by your education, experience, knowledge, skills, and abilities. The salary range for this role is intentionally wide as we evaluate individuals based on their unique experience and abilities to fit our needs. Most importantly, we are excited to meet you, and see if you are a great fit for our team. What we can't quantify for you are the exciting challenges, supportive team, and amazing culture we enjoy.