Demo

Cloud Systems Administrator

Sienna Systems Corporation
Alexandria, VA Full Time
POSTED ON 10/24/2026
AVAILABLE BEFORE 11/23/2026

Run AWS and Active Directory in the same week, and prefer a small team to a big one? Read on.

Sienna Systems is seeking a capable Cloud Systems Administrator to join our Social Security Administration Special Notice Option (SNO) team in Alexandria, Virginia.

SNO is how SSA delivers notices to beneficiaries who need them in an alternate format — Braille, large print, audio, and data files. This is the senior technical seat on the team: the cloud and directory backbone that everything else in the program runs on.

The team is lean, so you will own real systems end to end rather than filing tickets for someone else to action. You will work on-site alongside the government IT staff, with room to shape how the environment gets automated and hardened.

Why You'll Want This Role:

  • $127,500 – $132,500 based on experience
  • On-site in Alexandria, Virginia — easy commute from the DC metro, no relocation needed if you are already local
  • Established SSA program with a defined mission and a stable government customer
  • 401(k) with 4% matching, immediate vesting, no restrictions
  • 3 weeks Paid Time Off plus 11 Federal Holidays
  • Genuine ownership of the AWS and Active Directory environment on a small, self-directed team

Key Responsibilities:

Administer and maintain AWS cloud infrastructure and the systems hosted in it.

Design, deploy, and manage Active Directory including users, groups, systems, permissions and hierarchy, organizational units, and group policy objects; build and integrate AD Federation Services.

Manage and maintain virtualized environments and support operating system and application virtualization.

Analyze, design, develop, and deploy systems in a technically complex environment.

Provide operations and maintenance for fielded systems including security patching, backup and restore, upgrades, and lifecycle replacement.

Research and recommend automated approaches to system administration; write and maintain scripts.

Perform performance tuning and resource optimization, and produce performance reporting to support capacity planning.

Remediate Plan of Action and Milestones (POA&M) security findings in coordination with the information assurance team.

Provide Tier III support for complex issues and lead recovery from system failures.

Document the environment, systems, and processes, and transfer knowledge of system configurations to the core government project team.

Required Qualifications:

Able to obtain and maintain a Public Trust suitability determination

At least 2 years of cloud computing administration experience

At least 7 years of systems administration experience

AWS experience including VPC, EC2, AMI, GuardDuty, Bastion, IAM, CloudWatch, CloudTrail, AWS Systems Manager, and AWS Config integration

Extensive Active Directory experience: design, deployment, and management; users, groups, and permissions hierarchy; OUs and GPOs; ADFS

Experience managing VMware ESX/ESXi

Experience working with IIS and SQL Server

Experience administering SharePoint environments

Strong understanding of TCP/IP and other networking principles

Critical-thinking skills to analyze, troubleshoot, and resolve issues in a small, complex IT environment with or without direction from the government IT team

Proven effective written and verbal communication, teaming, and customer service skills

Ability to work independently, prioritize workload, and provide guidance to others

Preferred Qualifications:

Scripting experience with Ansible, AWS CLI, or PowerShell

Federal cloud or compliance experience including FedRAMP, NIST 800-53, or FISMA

AWS certification (Solutions Architect or SysOps) or VMware VCP

Experience supporting cloud migrations

Familiarity with Section 508 accessibility standards

Salary: $127,500 – $132,500 based on experience

Job location: Alexandria, Virginia

Company Benefits:

  • Medical/dental/vision insurance
  • 401(k) plan: 4% matching, immediate vesting, no restrictions
  • 3 weeks Paid Time Off (PTO)
  • 11 Federal Holidays
  • Long- and short-term Disability coverage
  • Company-sponsored Life Insurance coverage
  • Hiring Referral Bonus

#LI-AC1

Salary : $127,500 - $132,500

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