New

Principal Radio Frequency Engineer

Herndon, Virginia

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the boundaries of what’s possible to empower our team and support our customers in building a safer global future.

Overview of Opportunity 

Two Six Technologies is actively seeking a Principal Radio Frequency Engineer to join our Embedded Security Research team. The team is composed of intellectual individuals, passionate about software-defined radio (SDR), digital signal processing (DSP), and RF reverse engineering. The team is growing and looking for someone with an advanced RF engineering and signal processing background who has an understanding of how to serve as an RF Subject Matter Expert (SME) to lead technical planning, reverse engineer complex RF protocols, and architect solutions for embedded security research programs. If you are actively using SDR platforms, custom waveform synthesis, and advanced DSP techniques in Linux environments, the team wants to talk to you!

What you will do

  • Lead the technical planning, architectural design, and software execution for advanced DSP/SDR systems supporting critical embedded security research programs.
  • Provide subject matter expertise and technical mentorship to cross-functional engineering staff while solving complex challenges in communications, signal collection, and electronic warfare.
  • Reverse engineer complex COTS devices and RF protocols, isolate PRN codes, and synthesize custom RF waveforms to generate simulated signals.
  • Guide lab build-outs, define software toolchains, select SDR platforms, and validate generated signals using laboratory RF test equipment.
  • Contribute to project scheduling, budget preparation, and business development efforts by leading technical sections for proposals and white papers.

What you will need (basic qualifications)

  • Active DoD Top Secret clearance with SCI eligibility.
  • Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, Physics, Mathematics (or equivalent military/IC experience) paired with 9+ years of experience in DSP, SDR development, and RF reverse engineering.
  • Proven capability to serve as a technical lead, including experience mentoring engineering staff, guiding project deliverables, and contributing to technical sections of proposal efforts.
  • Demonstrated experience reverse engineering complex RF protocols and COTS devices, deriving transmission parameters, generating custom waveforms, and decoding Pseudo-Random Noise (PRN) codes.
  • Extensive hands-on experience implementing custom SDR solutions on COTS platforms in Linux environments, executing baseline modulation schemes (FSK, PSK, QAM), and performing RF test equipment validation.

Nice to have (preferred)

  • Familiarity with space-based system signal structures (e.g., GPS L1/L2, GNSS, SATCOM), space-dominant modulations (QBPSK, BOC), and satellite simulation software (e.g., AGI STK) for Doppler shift mitigation.
  • Practical experience using reverse engineering tools such as Ghidra for firmware reverse engineering.
  • Deep understanding of digital communication concepts, including Forward Error Correction (FEC), Viterbi and Reed-Solomon decoding, interleaving, and framing analysis.
  • Prior experience authoring technical white papers, presenting at technical panels, or supporting proposal capture efforts within SIGINT or Electronic Warfare domains.

Security Clearance:

  • Active DoD Top Secret clearance with SCI eligibility.

#LI-ZS1

#LI-ONSITE

Two Six Technologies is committed to providing competitive and comprehensive compensation packages that reflect the value we place on our employees and their contributions. We believe in rewarding skills, experience, and performance. Our offerings include but are not limited to, medical, dental, and vision insurance, life and disability insurance, retirement benefits, paid leave, tuition assistance and professional development.

The projected salary range listed for this position is annualized. This is a general guideline and not a guarantee of salary. Salary is one component of our total compensation package and the specific salary offered is determined by various factors, including, but not limited to education, experience, knowledge, skills, geographic location, as well as contract specific affordability and organizational requirements.

Salary Range

$215,924 - $323,886 USD

Apply for this job

*

indicates a required field

Phone
Resume/CV*

Accepted file types: pdf, doc, docx, txt, rtf

Cover Letter

Accepted file types: pdf, doc, docx, txt, rtf


Education

Select...
Select...
Select...

Select...
Select...

For more information on clearances, review this document

Select...
Select...
Select...
Select...
Select...
Select...

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in Two Six Technologies’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

Select...
Select...
Race & Ethnicity Definitions

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

Select...

Voluntary Self-Identification of Disability

Form CC-305
Page 1 of 1
OMB Control Number 1250-0005
Expires 07/31/2029

Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury
Select...

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.