Radio Frequency (RF) Engineer Digital

Company: Obsidian Solutions Group LLC
Location: Alexandria
Posted on: February 16, 2026

Job Description:

Job Description Job Description Description: Primary Location: Rosslyn, VA Clearance: Top Secret w/SCI eligibility Ability to work remotely: No Obsidian Solutions Group is seeking a Radio Frequency (RF) Engineer Digital to support the Bureau of Diplomatic Security (DS), the security and law enforcement arm of the U.S. Department of State (the Department). DS is a world leader in international investigations, threat analysis, cyber security, counterterrorism, security technology, and protection of people, property, and information. Its primary mission is to provide a safe and secure environment for the conduct of U.S. foreign policy. The Office of Security Technology (ST) supports the DS mission through the application and use of appropriate technical security countermeasures. The Countermeasures Program (CMP) and Security Technology Operations (STO) divisions are operational components within ST. CMP is primarily responsible for worldwide technical countermeasures policy for the Department. Countermeasures policies enforce the protection of sensitive and classified information. CMP also manages the overseas technical surveillance countermeasures (TSCM) program. Specific Responsibilities Responsible for leading the radio frequency (RF) engineering staff in evaluating new Original Equipment Manufacturers (OEM) RF technologies, both hardware and software-based radios, and information technologies found in the general office environment and for the mobile employee. Responsible for evaluating new technologies to include RF and optical, providing technical reports to senior government officials, as well as highlighting possible security vulnerabilities while making appropriate recommendations. Conduct open-source research on emergent technologies. Report on vulnerabilities and potential countermeasures. Generate RF environment baselines (worldwide). Document selected vulnerabilities via laboratory testing. Assisting in the drafting and review of technical security policies and guidelines involving state of the art information technologies and its implementation in Department of State resources. Responsible for gathering information on new technologies and any previous associated research found on those technologies, identify emanations found not previously recognized, and to implement and maintain a database of signal parameters for easy future recognition. Assist in various laboratory testing to determine the vulnerabilities associated with, but not limited to GSM, GPRS, CDMA, IEEE 802.15, IEEE 802.11a/b/g/n/ac (Wi-Fi), Free Space Optical (FSO) and Radio Frequency Identification (RFID) technologies. Requirements: Must have a current U.S. Government final TOP SECRET Personnel Security Clearance and be able to qualify for SCI access. Must be eligible for and able to obtain and maintain required Security Clearance/access approvals. Five (5) years of radio frequency (RF) work experience with a bachelor’s degree or higher in Electrical Engineering or similar field; or at least ten years of equivalent RF work experience. Familiarity with new and emerging mobile information technologies. SIGINT or Signal Analyst experience. Familiarity with cryptography and the best security practices for computer networks and mobile computers. Knowledge of commercial RF technologies, e.g. GSM/GPRS/EDGE, CDMA, Bluetooth, IEEE 802.11 a/b/g/n/ac, RFID, and WiMAX. Knowledge of information technology hardware and software capabilities. Knowledge of modulation schemes and types. Must be aware of Intelligence Community policies and be familiar with a variety of agency-specific policies. Desired Experience Experience in advanced radio wave propagation theory, digital communication systems and bit-stream analysis. Physical Requirements and Work Environment Normal office environment. Travel: 30 – 50% May be required to travel OCONUS to conduct installation, training, or maintenance at diplomatic facilities. OCONUS travel may include critical threat locations around the world with austere living conditions. Domestic travel may be required for training and program coordination. Company Description Obsidian Solutions Group LLC (OSG) is a fast-growing professional services firm based in Fredericksburg, VA. We create value for our customers by delivering technology-enabled & mission-oriented technical solutions that solve complex problems, protecting people, information, and assets. Our core capabilities are in providing Enterprise IT, Intelligence Analysis, Production & Development and Knowledge-Based Professional Services Solutions that enable the customer’s mission. Obsidian Solutions Group LLC is a veteran-owned small business. A career at Obsidian Solutions Group means you can put your expertise, credentials, and talents to great use working with customers in the DOD and Intelligence Community, while enjoying the excitement of working in a fast-growing organization committed to making a difference for our customers and in our community. Contribute independently and collaboratively alongside our amazing team of doers and thinkers. Obsidian Solutions Group is small enough to offer a family atmosphere yet large enough to deliver a highly competitive compensation package. We hire and retain the best in the industry, offering exceptional benefits that protect the well-being of our employees, their spouses and domestic partners, and their families. Our corporate philosophy is centered on hiring and retaining employees with the requisite skills, professional experience, personal commitment, and ethical standards necessary to foster a culture of operational excellence necessary to surpass our customer’s expectations. Disclaimer The above information on this description has been designed to indicate the general nature and level of work performed by employees within this classification. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities, and qualifications required of employees assigned to this job. Obsidian Solutions Group is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy and gender identity), national origin, political affiliation, sexual orientation, marital status, disability, genetic information, age, membership in an employee organization, parental status, protected veteran status, and any other non-merit factor, or any other characteristic protected by law.

Keywords: Obsidian Solutions Group LLC, Alexandria , Radio Frequency (RF) Engineer Digital, IT / Software / Systems , Alexandria, Virginia