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Principal Cybersecurity - CSO Email Domain Security

AT&T

Principal Cybersecurity - CSO Email Domain Security

AT&T logo

AT&T

full-time

Posted: November 30, 2025

Number of Vacancies: 1

Job Description

Job Description:

This position requires office presence of a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.

Join AT&T and reimagine the communications and technologies that connect the world. Our Chief Security Office ensures that our assets are safeguarded through truthful transparency, enforce accountability and master cybersecurity to stay ahead of threats. Bring your bold ideas and fearless risk-taking to redefine connectivity and transform how the world shares stories and experiences that matter. When you step into a career with AT&T, you won’t just imagine the future-you’ll create it.

Working as a Principal Cybersecurity within the Chief Security Office (CSO), you will work with Email Domain owners, business partners, and other AT&T teams; to design, implement, and maintain AT&T email security strategy and infrastructure. Focusing on protecting email systems from threats (E.g. phishing, malware, data breaches) enacting new security standards, and research emerging standards and protocols.  The role involves creating, maintaining and enforcing robust email security policies that align with AT&T's business needs and security best practices. 

Responsibilities:

  • Ensure security best practices are enforced, report KPIs, work with GTO Operations and other business units, to implement email security solutions.
  • Develop and maintain email security standards, policies, and best practices.
  • Ensure compliance, including relevant regulatory and industry standards.
  • Identify emerging threats, assess risks and consult with stakeholders to implement email security practices.
  • Identify and report on solution performance metrics.
  • Continual evaluation of both new technologies and the threat landscape.
  • Communicate to a broad audience information explaining email security, standards, and enforcement actions.
  • Assist other business units to design implementations that adhere to existing standards. 

Required/Desired Skills:

  • Strong understanding of relevant Internet protocols, including SMTP, DNS, message structure.
  • Strong understanding of email deliverability issues, email authentication (SPF/DKIM/DMARC), and email reputation systems.
  • Understanding of email solutions (Proofpoint, Exchange, etc.).
  • Understanding of encryption technologies.
  • Strong understanding of the roles of various sub-components of email systems (MTA, MDA, MUA, etc.) and their requirements.
  • Good communication skills and the ability to coordinate multiple projects simultaneously.

Education/Experience: Bachelor’s degree (BS/BA) desired in Computer Science or Cybersecurity. 7+ years of related experience. Certification is required in some areas.

Supervisor:

No

Our Principal Cybersecurity earns between $141,300-$211,900 USD Annual, not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.  

Joining our team comes with amazing perks and benefits:

  • Medical/Dental/Vision coverage  
  • 401(k) plan  
  • Tuition reimbursement program  
  • Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)  
  • Paid Parental Leave  
  • Paid Caregiver Leave  
  • Additional sick leave beyond what state and local law require may be available but is unprotected  
  • Adoption Reimbursement  
  • Disability Benefits (short term and long term)  
  • Life and Accidental Death Insurance  
  • Supplemental benefit programs: critical illness/accident hospital indemnity/group legal  
  • Employee Assistance Programs (EAP)  
  • Extensive employee wellness programs  
  • Employee discounts up to 50% off on eligible AT&T mobility plans and accessories,
  • AT&T internet (and fiber where available) and AT&T phone.

#LI-Onsite – Full-time office role-

Ready to join our team? Apply today.


 

Weekly Hours:

40

Time Type:

Regular

Location:

USA:NC:Charlotte / Research Dr - Dat:9139 Research Dr

Salary Range:

$141,300.00 - $211,900.00

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

Locations

  • Charlotte, North Carolina, United States

Salary

141,300 - 211,900 USD / yearly

Estimated Salary Rangemedium confidence

180,000 - 280,000 USD / yearly

Source: ai estimated

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Strong understanding of relevant Internet protocols, including SMTP, DNS, message structureintermediate
  • Strong understanding of email deliverability issues, email authentication (SPF/DKIM/DMARC), and email reputation systemsintermediate
  • Understanding of email solutions (Proofpoint, Exchange, etc.)intermediate
  • Understanding of encryption technologiesintermediate
  • Strong understanding of the roles of various sub-components of email systems (MTA, MDA, MUA, etc.) and their requirementsintermediate
  • Good communication skills and the ability to coordinate multiple projects simultaneouslyintermediate

Required Qualifications

  • Bachelor’s degree (BS/BA) desired in Computer Science or Cybersecurity (experience)
  • 7+ years of related experience (experience)
  • Certification is required in some areas (experience)

Responsibilities

  • Ensure security best practices are enforced, report KPIs, work with GTO Operations and other business units, to implement email security solutions
  • Develop and maintain email security standards, policies, and best practices
  • Ensure compliance, including relevant regulatory and industry standards
  • Identify emerging threats, assess risks and consult with stakeholders to implement email security practices
  • Identify and report on solution performance metrics
  • Continual evaluation of both new technologies and the threat landscape
  • Communicate to a broad audience information explaining email security, standards, and enforcement actions
  • Assist other business units to design implementations that adhere to existing standards

Benefits

  • general: Medical/Dental/Vision coverage
  • general: 401(k) plan
  • general: Tuition reimbursement program
  • general: Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
  • general: Paid Parental Leave
  • general: Paid Caregiver Leave
  • general: Additional sick leave beyond what state and local law require may be available but is unprotected
  • general: Adoption Reimbursement
  • general: Disability Benefits (short term and long term)
  • general: Life and Accidental Death Insurance
  • general: Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
  • general: Employee Assistance Programs (EAP)
  • general: Extensive employee wellness programs
  • general: Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone

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AT&T logo

Principal Cybersecurity - CSO Email Domain Security

AT&T

Principal Cybersecurity - CSO Email Domain Security

AT&T logo

AT&T

full-time

Posted: November 30, 2025

Number of Vacancies: 1

Job Description

Job Description:

This position requires office presence of a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.

Join AT&T and reimagine the communications and technologies that connect the world. Our Chief Security Office ensures that our assets are safeguarded through truthful transparency, enforce accountability and master cybersecurity to stay ahead of threats. Bring your bold ideas and fearless risk-taking to redefine connectivity and transform how the world shares stories and experiences that matter. When you step into a career with AT&T, you won’t just imagine the future-you’ll create it.

Working as a Principal Cybersecurity within the Chief Security Office (CSO), you will work with Email Domain owners, business partners, and other AT&T teams; to design, implement, and maintain AT&T email security strategy and infrastructure. Focusing on protecting email systems from threats (E.g. phishing, malware, data breaches) enacting new security standards, and research emerging standards and protocols.  The role involves creating, maintaining and enforcing robust email security policies that align with AT&T's business needs and security best practices. 

Responsibilities:

  • Ensure security best practices are enforced, report KPIs, work with GTO Operations and other business units, to implement email security solutions.
  • Develop and maintain email security standards, policies, and best practices.
  • Ensure compliance, including relevant regulatory and industry standards.
  • Identify emerging threats, assess risks and consult with stakeholders to implement email security practices.
  • Identify and report on solution performance metrics.
  • Continual evaluation of both new technologies and the threat landscape.
  • Communicate to a broad audience information explaining email security, standards, and enforcement actions.
  • Assist other business units to design implementations that adhere to existing standards. 

Required/Desired Skills:

  • Strong understanding of relevant Internet protocols, including SMTP, DNS, message structure.
  • Strong understanding of email deliverability issues, email authentication (SPF/DKIM/DMARC), and email reputation systems.
  • Understanding of email solutions (Proofpoint, Exchange, etc.).
  • Understanding of encryption technologies.
  • Strong understanding of the roles of various sub-components of email systems (MTA, MDA, MUA, etc.) and their requirements.
  • Good communication skills and the ability to coordinate multiple projects simultaneously.

Education/Experience: Bachelor’s degree (BS/BA) desired in Computer Science or Cybersecurity. 7+ years of related experience. Certification is required in some areas.

Supervisor:

No

Our Principal Cybersecurity earns between $141,300-$211,900 USD Annual, not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.  

Joining our team comes with amazing perks and benefits:

  • Medical/Dental/Vision coverage  
  • 401(k) plan  
  • Tuition reimbursement program  
  • Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)  
  • Paid Parental Leave  
  • Paid Caregiver Leave  
  • Additional sick leave beyond what state and local law require may be available but is unprotected  
  • Adoption Reimbursement  
  • Disability Benefits (short term and long term)  
  • Life and Accidental Death Insurance  
  • Supplemental benefit programs: critical illness/accident hospital indemnity/group legal  
  • Employee Assistance Programs (EAP)  
  • Extensive employee wellness programs  
  • Employee discounts up to 50% off on eligible AT&T mobility plans and accessories,
  • AT&T internet (and fiber where available) and AT&T phone.

#LI-Onsite – Full-time office role-

Ready to join our team? Apply today.


 

Weekly Hours:

40

Time Type:

Regular

Location:

USA:NC:Charlotte / Research Dr - Dat:9139 Research Dr

Salary Range:

$141,300.00 - $211,900.00

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

Locations

  • Charlotte, North Carolina, United States

Salary

141,300 - 211,900 USD / yearly

Estimated Salary Rangemedium confidence

180,000 - 280,000 USD / yearly

Source: ai estimated

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Strong understanding of relevant Internet protocols, including SMTP, DNS, message structureintermediate
  • Strong understanding of email deliverability issues, email authentication (SPF/DKIM/DMARC), and email reputation systemsintermediate
  • Understanding of email solutions (Proofpoint, Exchange, etc.)intermediate
  • Understanding of encryption technologiesintermediate
  • Strong understanding of the roles of various sub-components of email systems (MTA, MDA, MUA, etc.) and their requirementsintermediate
  • Good communication skills and the ability to coordinate multiple projects simultaneouslyintermediate

Required Qualifications

  • Bachelor’s degree (BS/BA) desired in Computer Science or Cybersecurity (experience)
  • 7+ years of related experience (experience)
  • Certification is required in some areas (experience)

Responsibilities

  • Ensure security best practices are enforced, report KPIs, work with GTO Operations and other business units, to implement email security solutions
  • Develop and maintain email security standards, policies, and best practices
  • Ensure compliance, including relevant regulatory and industry standards
  • Identify emerging threats, assess risks and consult with stakeholders to implement email security practices
  • Identify and report on solution performance metrics
  • Continual evaluation of both new technologies and the threat landscape
  • Communicate to a broad audience information explaining email security, standards, and enforcement actions
  • Assist other business units to design implementations that adhere to existing standards

Benefits

  • general: Medical/Dental/Vision coverage
  • general: 401(k) plan
  • general: Tuition reimbursement program
  • general: Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
  • general: Paid Parental Leave
  • general: Paid Caregiver Leave
  • general: Additional sick leave beyond what state and local law require may be available but is unprotected
  • general: Adoption Reimbursement
  • general: Disability Benefits (short term and long term)
  • general: Life and Accidental Death Insurance
  • general: Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
  • general: Employee Assistance Programs (EAP)
  • general: Extensive employee wellness programs
  • general: Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone

Target Your Resume for "Principal Cybersecurity - CSO Email Domain Security" , AT&T

Get personalized recommendations to optimize your resume specifically for Principal Cybersecurity - CSO Email Domain Security. Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "Principal Cybersecurity - CSO Email Domain Security" , AT&T

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Tags & Categories

TelecommunicationsTelecommunications

Related Jobs You May Like

No related jobs found at the moment.