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5G Architect Jobs (NOW HIRING)

Managed Staffing

4G/5G RAN Test Engineer

Plano, TX · On-site

$60 - $63/hr

4G/5G RAN Test Engineer III Location: Plano, TX Work Hours: 40 hrs/week Travel: Up to 25% Seeking a ... Good understanding of wireless system architecture , Core and RAN networks. * Lab testing and IOT ...

Aeris

Network Architect

Chicago, IL · On-site

$190K - $209K/yr

Key Responsibilities 5G SA Deployment Leadership * Lead end-to-end technical support activities for 5G SA deployments across Australia, Central Europe, and Singapore * Drive architecture ownership ...

GDH

5G Network Engineer

Bedminster, NJ · On-site

$50 - $55/hr

Modernize and re-architect legacy telecom applications into scalable, cloud-native, Java-based platforms. * Apply AI/ML models to enhance 5G network performance, capacity planning, and fault ...

Aerospacelab, Inc.

WI · On-site

$118K - $156K/yr

Actively contribute to architecture, design and code review of the gNB software stack * Build ... Proven experience in 5G stack development, especially L2/L3 layers * Deep understanding of 3GPP 5G ...

Aalyria

Professional experience with 5G/6G Non-Terrestrial Networking standards * 7+ years of experience in solutions architecture, technical pre-sales, or similar customer-facing technical roles * Strong ...

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Infographic showing various 5G Architect job openings in the United States as of August 2026, with employment types broken down into 94% Full Time, 1% Part Time, and 5% Contract. Highlights an 77% Physical, 7% Hybrid, and 16% Remote job distribution.

Junior Vulnerability Researcher (5G & Protocol Security)

Florham Park, NJ • On-site

CACI International, Inc.
See more jobs at CACI International, Inc.external

$79K - $162K/yr

Full-time

Medical, Retirement, PTO

Re-posted 28 days ago

Job description

Job Title: Junior Vulnerability Researcher (5G & Protocol Security)
Job Category: Engineering
Time Type: Full time
Minimum Clearance Required to Start: Top Secret
Employee Type: Regular
Percentage of Travel Required: None
Type of Travel: None
* * *
The Opportunity:
We are seeking a Vulnerability Researcher to join our 5G security team, focusing on protocol analysis and firmware reverse engineering. This role is for a practitioner with a strong systems background who is ready to take ownership of research tasks within complex telecommunications stacks. You will work as part of a high-performing group, identifying security flaws in 3GPP protocols and proprietary telecom binaries while developing the automated tooling necessary to secure national mobile infrastructure.
Responsibilities:
  • Execute research into 3GPP protocols (NGAP, GTP, etc.) to identify crashes and logic flaws using stateful fuzzing techniques.
  • Perform static and dynamic analysis on compiled telecom binaries and firmware to understand undocumented protocol logic.
  • Support the development of custom Python3 scripts for protocol decoding and automating analysis of "closed-box" systems.
  • Assist in mapping state machines within 5G session management flows using symbolic or concolic execution tools.
  • Analyze signaling and data plane components to identify potential attack surfaces in 5G Core and RAN environments.
  • Use debugging tools and packet analysis software (e.g., Wireshark) to inspect protocol traffic and hardware state.
  • Document research findings and contribute to the development of technical security reports.

Qualifications:
Required:
  • An active Top Secret clearance.
  • 3-5 years of professional experience in software exploitation, reverse engineering, or protocol development.
  • Strong proficiency in C/C++ and scripting experience in Python3.
  • Working knowledge of 4G/5G architecture and networking protocols (TCP/IP, SCTP, HTTP/2).
  • Experience with disassembly tools such as IDA Pro, Ghidra, or Binary Ninja.
  • Foundational understanding of binary analysis and memory corruption primitives.
  • Demonstrated ability to conduct independent technical research and analyze complex software systems.

Desired:
  • An active SCI clearance.
  • Experience with software-defined radio (SDR) or cellular testing equipment.
  • Familiarity with Linux-based telecom network functions.
  • Participation in security research projects or CTFs with a focus on networking or pwnable challenges.

This position is contingent on funding and may not be filled immediately. However, this position is representative of positions within CACI that are consistently available. Individuals who apply may also be considered for other positions at CACI.
What You Can Expect:
A culture of integrity.
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation.
An environment of trust.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
A focus on continuous growth.
Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.
Pay Range:
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
The proposed salary range for this position is:
$79,400 - $162,700
CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

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