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 seeking a Senior RF Systems Engineer to develop software for DSP/SDR systems. Engineers will perform architecture design, software development, testing, analysis, and debugging to support R&D programs in Herndon, Virginia. This role offers a hybrid work. The engineer will have the autonomy to define their toolchains, guide lab build-outs, and select the SDR platforms and software required for the work. The primary focus of this role is RF signal generation, protocol analysis, and signal reverse engineering.
What you will do (Responsibilities):
- Reverse engineer COTS devices to map reception logic, with the objective of generating downlink messages to the device via simulated signals.
- Reverse engineer complex RF protocols, focusing on isolating, analyzing, and decoding Pseudo-Random Noise (PRN) codes.
- Synthesize and generate custom RF waveforms based on reverse-engineered signal parameters.
- Detect, identify, and decode captured RF waveforms and complex communication signals.
- Perform RF signal reception and transmission using various baseline modulation schemes (e.g., FSK, PSK, QAM).
- Implement custom SDR solutions using existing COTS platforms and software in a Linux environment.
- Solve technical challenges in communications, signal collection, data processing, and electronic warfare domains.
- Execute experiments and validate generated signals in laboratory facilities using SDR platforms and RF signal test equipment.
- Provide subject matter expertise in signal generation, RF reverse engineering, and Digital Signal Processing (DSP).
- Collaborate with cross-functional engineering teams in a rapid prototyping environment.
What you will need (Basic Qualifications):
- Active DoD Top Secret clearance with SCI eligibility required
- Degree in Computer Engineering, Electrical Engineering, Mathematics, Physics, Computer Science, or equivalent practical, military, or intelligence community experience.
- Minimum 5 years of Digital Signal Processing (DSP) and Software Defined Radio (SDR) development experience.
- Extensive experience in RF reverse engineering, including deriving transmission parameters and regenerating target signals.
- Proven ability to generate and synthesize complex RF signals and waveforms.
- Experience in SIGINT, commercial telecom, cellular, or general communications systems development and testing.
- Ability to architect and implement digital signal processing and SDR solutions, with an emphasis on software and algorithmic implementations.
Nice if you have (Preferred):
- Familiarity with the signal structures, modulations, and protocols of space-based systems (e.g., GPS L1/L2, GNSS, SATCOM).
- Experience working with space-dominant modulations like QBPSK and BOC (Binary Offset Carrier).
- Experience with Ghidra and firmware reverse engineering.
- Deep understanding of digital communication concepts, including Forward Error Correction (FEC), Viterbi and Reed-Solomon decoding, interleaving, and framing analysis.
- Experience with satellite simulation software (e.g., AGI STK) or practical knowledge of handling space-related signal phenomena, such as extreme Doppler shift mitigation.
Security Clearance:
- Active DoD Top Secret clearance with SCI eligibility required
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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.
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Ready to make the first move towards growing your career? If so, check out the Two Six Technologies Candidate Journey! This will give you step-by-step directions on applying, what to expect during the application process, information about our rich benefits and perks along with our most frequently asked questions. If you are undecided and would like to learn more about us and how we are contributing to essential missions, check out our Two Six Technologies News page! We share information about the tech world around us and how we are making an impact! Still have questions, no worries! You can reach us at Contact Two Six Technologies. We are happy to connect and cover the information needed to assist you in reaching your next career milestone.
Two Six Technologies is an Equal Opportunity Employer and does not discriminate in employment opportunities or practices based on race (including traits historically associated with race, such as hair texture, hair type and protective hair styles (e.g., braids, twists, locs and twists)), color, religion, national origin, sex (including pregnancy, childbirth or related medical conditions and lactation), sexual orientation, gender identity or expression, age (40 and over), marital status, disability, genetic information, and protected veteran status or any other characteristic protected by applicable federal, state, or local law. For more information review the Two Six Technologies Equal Employment Opportunity and Affirmative Action Policy and the EEO Poster.
If you are an individual with a disability and would like to request reasonable workplace accommodation for any part of our employment process, please send an email to [email protected]. Information provided will be kept confidential and used only to the extent required to provide needed reasonable accommodations.
Additionally, please be advised that this business uses E-Verify in its hiring practices.
By submitting the following application, I hereby certify that to the best of my knowledge, the information provided is true and accurate.
Skills Required
- Eligible to obtain and maintain a DoD Top Secret security clearance
- Degree in Computer Engineering, Electrical Engineering, Mathematics, Physics, Computer Science, or equivalent practical/military/intelligence experience
- Minimum 5 years of Digital Signal Processing (DSP) and Software Defined Radio (SDR) development experience
- Extensive experience in RF reverse engineering including deriving transmission parameters and regenerating target signals
- Proven ability to generate and synthesize complex RF signals and waveforms
- Experience in SIGINT, commercial telecom, cellular, or general communications systems development and testing
- Ability to architect and implement digital signal processing and SDR solutions with emphasis on software and algorithmic implementations
- Active DoD Top Secret or TS/SCI clearance
- Familiarity with GPS L1/L2, GNSS, SATCOM signal structures, modulations, and protocols
- Experience with QBPSK and BOC modulations
- Experience with Ghidra and firmware reverse engineering
- Deep understanding of FEC, Viterbi and Reed-Solomon decoding, interleaving, and framing analysis
- Experience with satellite simulation software (e.g., AGI STK) or handling space-related signal phenomena
What We Do
Two Six Technologies provides cybersecurity and advanced technology solutions that support missions critical to U.S. national security. Our expertise includes R&D, innovation, productization and implementation in the technology fields of cyber, data science, mobile, microelectronics and information operations. We offer a family of operationally deployed products including Pulse, IKE™, SIGMA™, 8Wire™ and others. Major customers include DARPA, Department of State, U.S. Cyber Command, Department of Homeland Security and the broader Department of Defense and Intelligence Community. Two Six Technologies is a high-growth business with over 285 employees currently, and a global operational footprint that includes a technical presence in more than 40 countries, coupled with native proficiency in more than 20 languages.
