This position requires office presence of a minimum of 1 day per week and is only located in the location(s) posted.

AT&T Global Public Sector – Federal Defense and Homeland supports Department of Homeland Security customers by delivering secure connectivity, mobility, professional services, and mission-focused technology solutions. This role will provide sales engineering support for DHS customers, including FEMA, DHS Headquarters, and TSA.

Job Duties:

• Provide sales engineering support for DHS customers, including FEMA, DHS Headquarters, and TSA.
• Partner with account teams to understand customer mission needs and align AT&T products, services, and technical solutions to those requirements.
• Support strategic growth initiatives tied to DHS Enterprise and Mission Services opportunities.
• Support TDM transformation efforts, including customer discussions and solutioning for migration to fiber and wireless technologies.
• Develop technical solution recommendations, proposals, presentations, and responses to customer requirements.
• Collaborate with sales, engineering, product, finance, and partner teams to develop executable solutions and support opportunity progression.
• Maintain strong customer and internal stakeholder relationships while helping drive pipeline growth, revenue opportunities, and customer satisfaction.

Required Clearance:

DHS EOD Eligible / Public Trust (#clearable) (#publictrust)

Additional Clearance Requirements:

Ability to obtain or maintain required DHS suitability, EOD, Public Trust, or equivalent customer clearance as needed.

Required Qualifications:

• Experience supporting federal government customers, preferably DHS or related civilian agency customers.
• Strong understanding of federal sales, solution engineering, and consultative selling practices.
• Knowledge of networking, mobility, fiber, wireless, cloud, cybersecurity, and professional services solutions.
• Ability to translate customer mission and technical requirements into AT&T solution recommendations.
• Experience supporting proposals, presentations, pricing inputs, and customer-facing technical discussions.
• Ability to work independently with broad objectives and collaborate effectively across matrixed teams.
• Strong communication, analytical, problem-solving, and customer relationship skills.
• Washington, DC area-based role with required office presence in Chantilly, VA.

Desired Qualifications:

• Bachelor’s degree or equivalent experience.
• 6+ years of federal sales engineering, technical sales, solution architecture, or related experience.
• Knowledge of DHS customers, mission priorities, and federal acquisition processes.
• Experience with TDM transformation, fiber, wireless, mobility, FirstNet, or related network modernization initiatives.
• Existing DHS EOD/Public Trust or ability to obtain required customer suitability or clearance.
• Demonstrated ability to build trusted customer relationships and influence technical solution decisions.

Our Principal Sales System Engineer 5 jobs earn between $134,600.00 - $201,800.00 + commission $45,000 . 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 data 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

Weekly Hours:

40

Time Type:

Regular

Location:

Chantilly, Virginia

Salary Range:

$134,600.00 - $201,800.00

AT&T and its subsidiaries are committed to equal employment opportunity. All hiring, promotion, and other employment decisions remain merit-based and free from discrimination on the basis of race, color, religion, religious creed, national origin, ancestry, age, sex, sexual orientation, gender, gender identity, gender expression, physical disability, mental disability, pregnancy, medical condition, genetic information, marital status, citizenship status, military status, veteran status, or any other characteristic protected by federal, state, or local laws. In addition, AT&T will provide reasonable accommodations to qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made. Click here to learn more or request an application accommodation here.

Job ID R-117743 Date posted 08/03/2026