CrawlJobs Logo

Principal Penetration Tester

comcastcorporation.com Logo

Comcast

Location Icon

Location:
United States , Philadelphia

Category Icon

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

117225.34 - 224681.90 USD / Year

Job Description:

Make your mark at Comcast -- a Fortune 30 global media and technology company. Become part of our award-winning, international engineering 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. You’ll do the best work of your career right here. We are looking for an experienced Principal Penetration Tester (Engineering Level 5) to join our Penetration Testing Team. In this role, you will be responsible for conducting a variety of Pen Tests, 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 Responsibility:

  • Perform vulnerability scanning and penetration testing across diverse systems, applications, technologies and environments.
  • Identify program improvement opportunities and develop processes to mature and scale the Pen Testing program.
  • Present thought leadership in new and emerging advanced security trends, vulnerabilities and attack techniques
  • Lead security research and development efforts and provide technical leadership.
  • Develop remediation strategies and architect solution to challenging cybersecurity gaps.
  • Execute application penetration tests for APIs, mobile SDKs, cloud environments and web applications from both open and closed-box perspectives.
  • Analyze and prioritize findings based on the Common Vulnerabilities and Exposures (CVE) database, the Common Vulnerability Scoring System (CVSS) and internal Risk Rating system.
  • Contribute to and maintain the team’s tools, labs, and attack infrastructure
  • actively share knowledge through internal wikis and repositories.
  • 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.

Requirements:

  • 5+ years of experience in penetration testing with hands-on experience using tools like Burp Suite, Nmap, Metasploit, Nessus etc.
  • Advanced proficiency in cloud platforms - AWS, GCP, Azure and mobile app security testing.
  • Stay current with emerging threats and techniques in AI/ML security.
  • Complete understanding of the OWASP Top 10, CVSS, and CVE databases.

Nice to have:

  • Extensive experience in strategic planning and executing large-scale, enterprise-wide security initiatives to address complex security challenges.
  • Proven experience in leading security research and development initiatives. Contributions such as research publications, CVEs, CTF participation, and conference presentations are considered valuable additions.
  • Demonstrated ability to work independently on complex assessments while collaborating with cross-functional teams.
  • Proven expertise in mentoring and providing guidance to junior team members
  • Strong scripting experience with Python, Bash, Ruby, C/C++, C#, or Java to automate testing processes and streamline remediation.
  • Strong analytical, problem-solving, and communication skills, with attention to detail and a proactive mindset.
  • Strong presentation skills
  • Certifications such as: OSCP, OSWA, OSWE or similar.
What we offer:
  • 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.

Additional Information:

Job Posted:
December 26, 2025

Employment Type:
Fulltime
Work Type:
On-site work
Job Link Share:

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Principal Penetration Tester

Principal Penetration Tester

Sopra Steria Benelux is a significant player in cybersecurity, offering various ...
Location
Location
Czech Republic , Prague 7
Salary
Salary:
Not provided
https://www.soprasteria.com Logo
Sopra Steria
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • more than 10 years of experience
  • strong understanding of low-level network concepts
  • Linux systems (RedHat)
  • security protocols
  • proven track record in penetration testing
  • hands-on experience with tools like Scapy and Bettercap
  • proficiency in Python or C++ for automating tasks and developing custom tools
  • ability to manage multiple projects
  • prioritize tasks
  • ability to properly collect evidence in correlation with the related pentest step
  • Fulltime
Read More
Arrow Right

Principal Security Engineer

We’re looking for a principal Security Testing Engineer to work closely with the...
Location
Location
India , Bengaluru
Salary
Salary:
Not provided
https://www.atlassian.com Logo
Atlassian
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 6+ years penetration testing experience in a consultancy, dedicated internal pentesting team, or similar offensive security function
  • 2+ years experience as an offensive security team lead
  • Strong experience in white-box application security testing
  • Full stack application security technical experience
  • Delivery focused
  • Experience mentoring junior penetration testers
  • The ability to complete a penetration test and code review of a modern cloud application
  • Experience leading security teams on complex penetration testing engagements
  • Strong, practical understanding of security testing methodologies, supporting infrastructure requirements and legal considerations
  • Strong collaboration and communication skills when working with closely with deeply technical development and infrastructure teams
Job Responsibility
Job Responsibility
  • Providing SME knowledge and guidance to a team of pen testers/code review
  • Continuing to mature pen testing/code review workflows
  • Identifying and recruiting top-class penetration testing talent
  • Supporting and guiding the growth of a India based penetration testing team
  • Analysing vulnerability data for trends and gaps in controls
  • Identifying significant vulnerabilities in Atlassian products prior to production deployment
  • Building contacts in the Atlassian engineering team, product team and security team
  • Building and leveraging existing contacts to identify potential talent to join the team
  • Establishing testing processes in the local team that complements and extends existing processes
  • Identifying insights which contribute to strategic investments
What we offer
What we offer
  • health and wellbeing resources
  • paid volunteer days
  • Fulltime
Read More
Arrow Right
New

Primary Teaching Assistant

Randstad Education is seeking an enthusiastic Primary Teaching Assistant to work...
Location
Location
United Kingdom , Horley
Salary
Salary:
Not provided
https://www.randstad.com Logo
Randstad
Expiration Date
March 04, 2026
Flip Icon
Requirements
Requirements
  • Prior experience working with children, preferably in a primary school setting
  • A firm commitment to child safeguarding and welfare
  • Relevant qualifications are a plus but not mandatory
  • ability to track progression in attainment
  • background in youth work
  • behaviour management
  • building relationships
  • classroom management
  • communication
  • de-escalation techniques
Job Responsibility
Job Responsibility
  • Assisting teachers with lesson delivery and classroom organization
  • Providing focused, one-on-one or small- group support to students
  • Helping with behaviour management to maintain classroom structure
  • Supporting children with Special Educational Needs (SEN)
  • Promoting an inclusive and positive classroom atmosphere
  • Participating in school meetings and events as needed
What we offer
What we offer
  • A competitive wage based on your expertise
  • Flexible working hours (full-time/part-time)
  • Opportunities for professional development
  • Work within a supportive, collaborative school environment
  • Access to a network of primary schools throughout Horley
  • Referral Bonus
  • training and education
Read More
Arrow Right
New

Primary teaching assistant

Primary Teaching Assistant Role - Randstad Education, Horley. Randstad Education...
Location
Location
United Kingdom , Horley
Salary
Salary:
Not provided
https://www.randstad.com Logo
Randstad
Expiration Date
March 04, 2026
Flip Icon
Requirements
Requirements
  • Prior experience working with children, preferably in a primary school setting
  • A firm commitment to child safeguarding and welfare
  • Relevant qualifications are a plus but not mandatory
  • ability to track progression in attainment
  • background in youth work
  • behaviour management
  • building relationships
  • classroom management
  • communication
  • de-escalation techniques
Job Responsibility
Job Responsibility
  • Assisting teachers with lesson delivery and classroom organization
  • Providing focused, one-on-one or small- group support to students
  • Helping with behaviour management to maintain classroom structure
  • Supporting children with Special Educational Needs (SEN)
  • Promoting an inclusive and positive classroom atmosphere
  • Participating in school meetings and events as needed
What we offer
What we offer
  • A competitive wage based on your expertise
  • Flexible working hours (full-time/part-time)
  • Opportunities for professional development
  • Work within a supportive, collaborative school environment
  • Access to a network of primary schools throughout Horley
  • Referral Bonus
  • training and education
Read More
Arrow Right
New

Primary Teaching Assistant

Primary Teaching Assistant Role - Randstad Education, Horley. Randstad Education...
Location
Location
United Kingdom , Horley, Surrey
Salary
Salary:
Not provided
https://www.randstad.com Logo
Randstad
Expiration Date
March 04, 2026
Flip Icon
Requirements
Requirements
  • Prior experience working with children, preferably in a primary school setting
  • A firm commitment to child safeguarding and welfare
  • Relevant qualifications are a plus but not mandatory
  • ability to track progression in attainment
  • background in youth work
  • behaviour management
  • building relationships
  • classroom management
  • communication
  • de-escalation techniques
Job Responsibility
Job Responsibility
  • Assisting teachers with lesson delivery and classroom organization
  • Providing focused, one-on-one or small- group support to students
  • Helping with behaviour management to maintain classroom structure
  • Supporting children with Special Educational Needs (SEN)
  • Promoting an inclusive and positive classroom atmosphere
  • Participating in school meetings and events as needed
What we offer
What we offer
  • A competitive wage based on your expertise
  • Flexible working hours (full-time/part-time)
  • Opportunities for professional development
  • Work within a supportive, collaborative school environment
  • Access to a network of primary schools throughout Horley
  • Referral Bonus
  • training and education
Read More
Arrow Right
New

Primary Teaching Assistant

As a Primary Teaching Assistant, you will be crucial in supporting the developme...
Location
Location
United Kingdom , Horley
Salary
Salary:
Not provided
https://www.randstad.com Logo
Randstad
Expiration Date
March 03, 2026
Flip Icon
Requirements
Requirements
  • Experience working with children, preferably in a primary school
  • A patient, caring, and encouraging approach to young learners
  • Strong communication and teamwork skills
  • Flexibility, adaptability, and a positive attitude
  • Relevant qualifications in education or childcare are a plus but not essential
  • A commitment to safeguarding children (an enhanced DBS check is required)
Job Responsibility
Job Responsibility
  • Work closely with teachers to deliver engaging lessons
  • Provide one-on-one or small group support to students who need it
  • Help with classroom management to keep a positive learning atmosphere
  • Support students with special educational needs (SEN) as required
  • Prepare and organize teaching materials and resources
  • Contribute to school activities, events, and parent meetings
What we offer
What we offer
  • Competitive Pay
  • Flexible Hours
  • Professional Development
  • Supportive Environment
  • Variety of Roles
  • Referral Bonus
Read More
Arrow Right
New

Primary Teaching Assistant

Primary Teaching Assistant - Randstad Education. Are you passionate about educat...
Location
Location
United Kingdom , Horley, Surrey
Salary
Salary:
Not provided
https://www.randstad.com Logo
Randstad
Expiration Date
March 03, 2026
Flip Icon
Requirements
Requirements
  • Experience working with children, preferably in a primary school
  • A patient, caring, and encouraging approach to young learners
  • Strong communication and teamwork skills
  • Flexibility, adaptability, and a positive attitude
  • Relevant qualifications in education or childcare are a plus but not essential
  • A commitment to safeguarding children (an enhanced DBS check is required)
Job Responsibility
Job Responsibility
  • Work closely with teachers to deliver engaging lessons
  • Provide one-on-one or small group support to students who need it
  • Help with classroom management to keep a positive learning atmosphere
  • Support students with special educational needs (SEN) as required
  • Prepare and organize teaching materials and resources
  • Contribute to school activities, events, and parent meetings
What we offer
What we offer
  • Competitive Pay
  • Flexible Hours
  • Professional Development
  • Supportive Environment
  • Variety of Roles
  • Referral Bonus
Read More
Arrow Right
New

Primary Teaching Assistant

As a Primary Teaching Assistant, you will play a key role in supporting the lear...
Location
Location
United Kingdom , Horley
Salary
Salary:
Not provided
https://www.randstad.com Logo
Randstad
Expiration Date
March 02, 2026
Flip Icon
Requirements
Requirements
  • Experience working with children, preferably in a primary school setting
  • A patient, caring, and supportive approach to working with young learners
  • Strong communication and teamwork skills
  • Flexibility, adaptability, and a positive attitude
  • Relevant qualifications in education or childcare are advantageous but not essential
  • A commitment to safeguarding and promoting the welfare of children (enhanced DBS required)
Job Responsibility
Job Responsibility
  • Work closely with class teachers to deliver engaging lessons
  • Provide one-on-one or small group support to students needing additional help
  • Assist with classroom management and help maintain a positive learning environment
  • Support children with special educational needs (SEN) when required
  • Prepare and organise teaching materials and resources
  • Contribute to school activities, events, and parent meetings as needed
What we offer
What we offer
  • Competitive Pay
  • Flexible Hours
  • Professional Development
  • Supportive Environment
  • Variety of Roles
  • Referral Bonus
Read More
Arrow Right