Comcast · 19 hours ago
Comcast Cybersecurity: Principal Security R&D Engineer
Philadelphia, PA
Full-time
Onsite
Senior Level, Lead/Staff
5+ years expComcast is a Fortune 30 global media and technology company, and they are seeking a highly skilled Principal Cybersecurity Engineer to lead research and development of advanced security solutions. This role focuses on security engineering, system design, and embedded technologies to build next-generation secure platforms and solutions.
InternetTelecommunicationsTVVideoWeb Hosting
Responsibilities
Develop and integrate open-source security solutions with existing systems
Research and prototype new cybersecurity and privacy technologies, including cryptographic mechanisms
Develop and optimize embedded software solutions in languages such as C/C++ and Python
Collaborate with internal teams and external partners to validate findings, publish research, and contribute to open-source tools
Build proof-of-concept models to validate security designs and performance in real-world environments
Stay current with evolving standards in cryptography (e.g., TLS 1.3, post-quantum crypto) and network security
Collaborate with software, hardware, and device teams to ensure seamless integration of security features into embedded, software, and hardware platforms
Qualification
Required
Bachelor's degree in computer science, Cybersecurity, or a related technical field with 4+ years of professional experience OR equivalent
Strong understanding of cybersecurity and privacy engineering principles and network protocols (e.g., TLS, IPsec, DNSsec)
Proficiency in development and engineering skills using languages such as Python and C
Familiarity with cryptographic algorithms (RSA, ECC, AES) and digital signatures
Ability to learn and work independently, with strong communication and problem-solving skills
Preferred
Master's or Ph.D. in Computer Science, Cybersecurity, or related technical field
Experience with or familiarity with cryptography and post-quantum cryptography
Contributions to open-source security tools or frameworks
Track record of publications, contributions to patents, and active involvement in cybersecurity research and engineering projects
Benefits
Best-in-class Benefits
Company
Comcast
Comcast is a media and technology company that provides broadband internet, mobile services, and entertainment platforms. It is a sub-organization of SkyShowtime.
10001+ employees
H1B Sponsorship
Comcast has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (705)
2024 (561)
2023 (624)
2022 (750)
2021 (588)
2020 (583)
Funding
Current Stage
Public CompanyTotal Funding
$4.92BKey Investors
California Public Utilities CommissionMassachussetts Broadband InstituteMaine Connectivity Authority
2025-11-13Grant· $3.2M
2024-07-02Grant· $2.69M
2023-04-24Grant· $0.28M
Leadership Team
Neil Smit
President and Chief Executive Officer
Candy Lawson
SVP, Chief Compliance Officer and Senior Deputy General Counsel
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