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Senior HF Systems Engineer

The Marlin Alliance, Inc.
San Diego, CA Full Time
POSTED ON 5/14/2026
AVAILABLE BEFORE 6/11/2026
The Marlin Alliance, Inc. is seeking a Senior HF Systems Engineer to join our team in Sierra Vista, AZ. This position supports our DoW customer and requires an active U.S. Top Secret/SCI security clearance.

About The Marlin Alliance

Incorporated in 2002, The Marlin Alliance is a digital transformation company dedicated to ensuring our clients compete and win in tomorrow’s digital world. We specialize in technical solutions that allow for seamless execution of automated business processes and the generation of governed, machine-consumable data. From strategic planning to advanced analytics and cybersecurity, our team provides cutting-edge, cross-disciplinary solutions.

Key Responsibilities

  • Evaluate and integrate advanced High Frequency (HF) communication technologies into existing defense systems to enhance tactical networking capabilities.
  • Design and execute comprehensive laboratory and field-testing protocols to validate the performance of protected waveforms and tactical data link integrations.
  • Lead the engineering design, hardware modification, and prototype development of modular communication kits for maritime and airborne platforms through high technology readiness levels.
  • Develop specialized antenna solutions and RF switching circuitry to optimize signal integrity and multi-system interoperability.
  • Define technical requirements and conceptualize software interfaces to enable seamless data exchange across disparate radio frequency platforms.
  • Facilitate interoperability initiatives with departmental and international partners to validate communication standards and technical specifications.
  • Generate technical documentation, including test plans, architectural white papers, and engineering reports to support the adoption of new system capabilities.
  • Manage the technical implementation and build-out of communication infrastructure at designated operational sites.

Required Qualifications

  • Active Top Secret/SCI (TS/SCI) clearance is required.
  • Bachelor’s degree in a quantitative field such as engineering or mathematics (e.g., Electrical Engineering, Computer Engineering, Computer Science, Information Technology, or Information Systems).
  • Minimum of 10 years of professional experience with radio frequency engineering.
  • Demonstrated expertise in HF radio frequency circuit design, audio/RF mixers, power distribution, and Tactical Data Links.

Desired Qualifications

  • Master’s degree in a quantitative field such as engineering or mathematics (e.g., Electrical Engineering, Computer Engineering, Computer Science, Information Technology, or Information Systems).
  • Specialized knowledge of RF devices and/or systems.
  • Proficient knowledge of electronic test equipment including Spectrum Analyzers, Network Analyzers, Signal Generators, Oscilloscopes, and Amplifiers.
  • Deep knowledge of RF Communications systems engineering and/or integration.

Work Environment and Mental/Physical Demands

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this position. Reasonable accommodations may be made to enable individuals with disabilities to perform the functions, absent undue hardships.

  • Must be able to perform work in a stationary position at a minimum of 50% of the time.
  • Must have the ability to operate computer and other office productivity machinery consistently during work hours.
  • Must have the ability to communicate and exchange information and ideas in an in-person or virtual setting through the use of online tools and available communication mediums.
  • Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions of their job, absent undue hardship.

The Employer retains the right to change or assign other duties to this position as deemed necessary

Job Classification

Salary Range: $120,000 – $150,000

  • On-Site - Location: Sierra Vista, AZ

Disclaimer

This job description in no way states or implies that these are the only duties to be performed by the employee(s) incumbent in this position. Employees will be required to follow any other job-related instructions and to perform any other job-related duties requested by any person authorized to give instructions or assignments. All duties and responsibilities are essential functions and requirements and are subject to possible modification to reasonably accommodate individuals with disabilities.

To perform this job successfully, the incumbents will possess the skills, aptitudes, and abilities to perform each duty proficiently. Some requirements may exclude individuals who pose a direct threat or significant risk to the health or safety of themselves or others. The requirements listed in this document are the minimum levels of knowledge, skills, or abilities.

This document does not create an employment contract, implied or otherwise, other than an “at-will” relationship.

An Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities.

Salary : $120,000 - $150,000

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