Principal Sales Systems Engineer V (Government

Position: Principal Sales Systems Engineer V (Government)
## Principal Sales Systems Engineer V (Government)
Apply remote type:
Office Worker (NOT Remote) locations:
Chantilly, Virginia time type:
Full time posted on:
Posted Todaytime left to apply:
End Date:
November 3, 2026 (30+ days left to apply) job requisition :
R-117743

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) (#public trust)
** 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, First Net, 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 $ - $ + 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)
*…