Radio Frequency Engineer II bei XSITE LLC

Position: Radio Frequency (RF) Engineer II (RFE2)

Location: San Diego, CA (Hybrid/Remote Considered)

Clearance Requirement: Current Secret clearance required (TS/SCI eligibility preferred)

Position Overview

XSITE LLC is seeking a Radio Frequency (RF) Engineer II to support Test and Evaluation (T&E) activities for tactical communication systems. This position will play a key role in system characterization, performance testing, and optimization across complex RF and C4ISR platforms in support of Department of Defense (DoD) programs.

The ideal candidate will bring hands-on experience debugging and validating RF systems, with a strong foundation in open systems architecture and modern waveform technologies. This is an exciting opportunity to work in a growing defense technology company with long-term programmatic stability and upward mobility.

Primary Responsibilities

Test & Evaluation (T&E)

• Conduct performance, compliance, and requirements-based testing for RF components and subsystems within tactical communication environments.

• Perform debugging, optimization, and integration of RF systems.

• Analyze system behavior through test data and lab measurements, identifying root causes of issues and implementing corrective actions.

• Design and execute T&E plans, test procedures, and detailed reporting for RF systems.

System Characterization & Optimization

• Support RF system development and sustainment efforts, focusing on link budget analysis, antenna performance, and waveform behavior.

• Work with cross-functional teams to assess and optimize system performance in real-world operating conditions.

• Assist in the validation of LPI (Low Probability of Intercept), LPD (Low Probability of Detection), and anti-jam capabilities.

Architecture & Compliance Support

• Contribute to system designs that follow open architecture standards such as SOSA, CMOSS, OMS/UCI, and AMS GRA.

• Support integration activities to ensure compatibility with mission-critical platforms and government reference architectures.

• Maintain awareness of evolving standards in the RF and C5ISR domains and ensure engineering work aligns with DoD acquisition strategy.

Required Qualifications

• Bachelor of Science degree in engineering, physics, mathematics, computing, applied science, management information systems, or a related technical field.

• Current Secret clearance.

• Minimum 3 years of experience (within the past 7 years) performing Test and Evaluation tasks, including:

  • Debugging, integration, and optimization of RF or tactical communication systems.

  • Characterization, performance testing, and compliance evaluation.

• Strong understanding of RF systems, signal processing, antennas, and waveform technologies.

• Proficiency in lab test equipment (e.g., spectrum analyzers, signal generators, vector network analyzers).

Desired Qualifications

• Current Top Secret clearance or eligibility for TS/SCI access, with history supporting TS programs.

• Five (5) years of experience (within the past 10 years) with:

  • Open architecture standards like SOSA, CMOSS, OMS/UCI, or AMS GRA.

  • RF technologies involving LPD/LPI waveforms and anti-jam techniques in tactical communications.

Why XSITE LLC?

Best-in-Class Benefits & Work-Life Balance

• 100% employer-paid health, dental, and vision coverage.

• 401K with a 6% match.

• Industry-leading PTO package.

• Continuing education reimbursement.

• Hybrid onsite/remote work environment.

Stability & Long-Term Growth

• Multiple prime contracts and a mentor-protégé joint venture with a major defense contractor.

• Scalable infrastructure and long-term program support.

Career Advancement

• XSITE LLC is a rapidly growing Service-Disabled Veteran-Owned Small Business (SDVOSB), growing nearly 300% year-over-year, offering technical leadership, project management, and advancement opportunities.

Apply Today!
Join a collaborative and mission-driven team working on cutting-edge tactical communication systems supporting national defense.