Make your mark at Comcast -- a Fortune 30 global media and technology company. From the connectivity and platforms we provide, to the content and experiences we create, we reach hundreds of millions of customers, viewers, and guests worldwide. Become part of our award-winning technology team that turns big ideas into cutting-edge products, platforms, and solutions that our customers love. We create space to innovate, and we recognize, reward, and invest in your ideas, while ensuring you can proudly bring your authentic self to the workplace. Join us. You’ll do the best work of your career right here at Comcast. (In most cases, Comcast prefers to have employees on-site collaborating unless the team has been designated as virtual due to the nature of their work. If a position is listed with both office locations and virtual offerings, Comcast may be willing to consider candidates who live greater than 100 miles from the office for the remote option.) **Job Summary** We are looking for an experienced Principal Penetration Tester (Engineering Level 5) to join our Security Assessment Team. In this role, you will be responsible for conducting a variety of security assessments, including web application, network, mobile, and cloud penetration testing, as well as participating in red team exercises. You’ll also contribute to ongoing efforts to strengthen our security infrastructure and offensive capabilities. As a senior team member, you’ll have the opportunity to take ownership of projects, mentor junior team members, and collaborate with cross-functional teams to assess and remediate vulnerabilities. We foster a collaborative environment where continuous learning and growth are encouraged. **Job Description** **Key Responsibilities:** + Perform vulnerability scanning and penetration testing across diverse systems, applications, and environments. + Analyze and prioritize findings based on the Common Vulnerabilities and Exposures (CVE) database and the Common Vulnerability Scoring System (CVSS). + Execute application penetration tests for APIs, mobile SDKs, cloud environments and web applications from both open and closed-box perspectives. + Contribute to and maintain the team’s tools, labs, and attack infrastructure; actively share knowledge through internal wikis and repositories. + Lead security research and development efforts andprovide technical leadership. + Develop remediation strategies and architect solution to challenging cybersecurity gaps. + Effectively communicate findings and recommendations to both technical and non-technical stakeholders, preparing comprehensive reports and presentations. + Stay informed on the latest cybersecurity trends, techniques, and vulnerabilities by following industry publications and threat feeds. **Qualifications:** + 7+ years of experience in penetration testing with hands-on experience using tools like Burp Suite, Metasploit, Nessus, Nmap, and other security testing tools. + Proficiency in cloud platforms - AWS, GCP, Azure and mobile app security testing. + Solid understanding of the OWASP Top 10, CVSS, and CVE databases. + Scripting experience with Python, Bash, Ruby, C/C++, C#, or Java to automate testing processes and streamline remediation. + Strong network and application penetration testing skills, with experience in Linux and Windows environments. + Practical experience with networking protocols (IPv4/IPv6), packet capture (PCAP), and advanced techniques like pivoting and tunneling across segmented networks. **About Our Perks & Benefits:** We are determined to create an environment where our employees feel valued, understand our business goals, and are motivated. **Here's a look at just some of the perks and benefits we make available to our US-based employees:** + Medical & Dental + 401(k) Savings Plan + Generous paid time off + Life Milestones - from adoption assistance, childcare resources, pet insurance, and more, Comcast supports you at all life stages. + Courtesy Services - We offer all of our full-time employees in serviceable areas free digital TV and internet. + Discount tickets for Universal Resorts, including theme park tickets and onsite hotel rooms. **Learn more at** **jobs.comcast.com/life-at-comcast/benefits** We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, perform essential job functions, and receive other benefits and privileges of employment. Please contact us to request an accommodation. **Disclaimer:** ***This position is unable to provide work authorization sponsorship or immigration support now or in the future.*** + This information has been designed to indicate the general nature and level of work performed by employees in this role. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications. **Comcast is an** **EOE/Veterans/Disabled/LGBT** **employer.** Comcast is proud to be an equal opportunity workplace. We will consider all qualified applicants for employment without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, disability, veteran status, genetic information, or any other basis protected by applicable law. **Skills:** Information Security; Cybersecurity; Vulnerability Management; Python (Programming Language) Base pay is one part of the Total Rewards that Comcast provides to compensate and recognize employees for their work. Most sales positions are eligible for a Commission under the terms of an applicable plan, while most non-sales positions are eligible for a Bonus. Additionally, Comcast provides best-in-class Benefits to eligible employees. We believe that benefits should connect you to the support you need when it matters most, and should help you care for those who matter most. That’s why we provide an array of options, expert guidance and always-on tools, that are personalized to meet the needs of your reality – to help support you physically, financially and emotionally through the big milestones and in your everyday life. Please visit the compensation and benefits summary (https://jobs.comcast.com/benefits) on our careers site for more details. **Education** Bachelor's Degree While possessing the stated degree is preferred, Comcast also may consider applicants who hold some combination of coursework and experience, or who have extensive related professional experience. **Relevant Work Experience** 10 Years **Job Family Group:** Information Technology