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Sierra Space

LEO space transportation, habitats, satellites

RF Engineer 3

RF & Microwave EngineeringConfirmed live in the last 24 hours
Full-timeLouisville, CO, USA$112.7k - $155kIn-person

About the Job

Requirements

  • A Bachelor's degree in RF Engineering or a related engineering discipline and at least 6 years of relevant experience, or a Master's degree with at least 4 years of relevant experience.
  • In-depth understanding of engineering principles and practices, including advanced RF modeling and analysis techniques and tools.
  • Demonstrated track record of progressively increasing responsibility while working in and leading multidisciplinary design and development teams.
  • Ability to work independently with minimal guidance and to review and guide the work of others.
  • An active Secret U.S. Security Clearance and eligibility to obtain and maintain a Top Secret U.S. Security Clearance.

Responsibilities

  • Lead RF front-end design efforts across multiple concurrent programs and independently perform complex radio propagation modeling, microwave path analysis, and interference/Cosite analysis.
  • Drive RF frequency planning and filter design strategies for integrated platforms, interfacing directly with customers, program management, and cross-functional teams on technical trade studies and design reviews.
  • Develop and own substantiation documentation, test plans, and compliance packages for regulatory and military standards.
  • Identify and resolve complex, ambiguous technical problems with minimal oversight.

Desired Qualifications

  • Deep knowledge of industry-standard RF principles as applied to design, analysis, and test, with the ability to originate novel approaches.
  • Demonstrated expertise performing RF analysis such as Cosite, E3 integration, link budgets, and antenna patterns, with hands-on proficiency in ANSYS HFSS, ANSYS EMIT, and MATLAB.
  • Proven ability to develop and defend substantiation documentation demonstrating compliance with requirements and industry standards, including test plans/reports, analysis documents, and compliance checklists.
  • Extensive hands-on experience with RF test equipment such as vector network analyzers, spectrum analyzers, and signal generators.
  • Demonstrated experience designing and verifying to MIL-STD-464 and executing test procedures per MIL-STD-461.
  • Strong background in the Aerospace and Defense industry, U.S. Department of Defense, and/or U.S. Military.
  • Advanced knowledge of industry-standard RF assemblies and component selection, with experience authoring technical specifications.

About the Company

Sierra Space

LEO space transportation, habitats, satellites

Sierra Space provides a space-as-a-service platform spanning transportation, habitats, and satellite systems for government, civil, and commercial customers in the low-Earth orbit economy. Its products include the Dream Chaser reusable spaceplane for cargo and eventual crew, the LIFE inflatable habitat for LEO, lunar, or Mars missions, and satellite buses like Velocity, Horizon, and Titan used for missile warning and tracking under SDA contracts. Unlike many space firms, Sierra Space offers an end-to-end suite—spaceplane transport, habitable modules, and satellite platforms—integrated under one platform and backed by decades of spaceflight heritage, including collaboration on Orbital Reef with Blue Origin. Its goal is to enable a growing LEO economy by delivering integrated infrastructure and services that support government missions, commercial activity, and national security space capabilities.

Company size
1,001-5,000
Company stage
Series C
Total funding
$2.2B
Headquarters
Louisville, CO
Founded
2021

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