Senior IT Support Specialist Jobs in District of Columbia

Are you looking for a Challenge? Looking for an innovative organization and the opportunity to learn and grow professionally? We can help! We are seeking IT Support Specialist (Tester)to support the Internal Revenue Service's (IRS) Criminal Investigations (CI) Client Management Support Services (CMSS) & U.S. Windows Client OS Support and Onsite Services contract at the IRS test lab in Washington, DC.

I've never heard of Terrestris. What do you do?

At Terrestris, we leverage technology to create better mission outcomes through better human performance. We form strong client and team relationships through transparency and strive to create an environment where our team can let their excellence shine through. By finding, developing, and incorporating new ideas, we provide memorable services. Rooted in the USMC values of honor, courage, and commitment, Terrestris seeks to deliver extraordinary value to the American people by helping the Government become more efficient and effective.

So, what will the IT Support Specialist (Tester) at Terrestris do?

The IT Support Specialist (Tester)will support the IRS Criminal Investigation (CI) enterprise endpoint test environment by performing structured validation and testing of Windows-based hardware, software, operating systems, applications, and endpoint-management solutions. The position will help ensure that new technologies, configurations, updates, and hardware platforms are thoroughly tested and ready for enterprise deployment.

You will maintain test environments, execute test plans, document results, identify defects, and recommend corrective actions. You will also support endpoint imaging and lifecycle-management activities, automated testing initiatives, configuration and change management, and the development of technical documentation and communications. This position will play an important role in ensuring that endpoint solutions meet IRS-CI operational, security, and performance requirements before they are deployed to users.

What does a typical day look like for a IT Support Specialist (Tester)?

You will:

• Execute structured validation and testing within the enterprise endpoint test environment.
• Support the configuration and lifecycle management of endpoints, software, hardware, and associated test environments.
• Analyze, develop, implement, and maintain modernized endpoint imaging methodologies and lifecycle-management solutions, including operating systems, firmware, drivers, BIOS, standard software, clients, and servers.
• Support automated image and version tracking and the integration of new hardware into established image lifecycles.
• Analyze, develop, implement, and maintain automated testing methodologies and solutions supporting user profiles, endpoint management, software management, and captured test use cases.
• Maintain test environments daily and gather requirements from stakeholders.
• Review, develop, improve, and maintain test plans and associated testing documentation.
• Perform testing of hardware and software changes using agile and continuous-delivery methodologies.
• Validate endpoint deployments across different hardware configurations, authentication methods, and network environments.
• Identify defects, document test results, and recommend corrective actions.
• Provide management reporting on test execution, results, defects, and overall readiness.
• Support Alternatives Analysis, decision documents, white papers, and implementation of approved solutions using IRS-CI processes.
• Support configuration, change, and communications management activities.
• Assist with release communications, Standard Operating Procedures (SOPs), knowledge articles, self-help content, and other technical documentation.
• Ensure testing activities and deliverables comply with DISA Security Technical Implementation Guides (STIGs) and applicable IRS/CI security controls and policies.

What qualifications do you look for?

You might be the professional we're looking for if you have:

• Authorization to permanently work in the United States without sponsorship.
• A minimum of 3 years of experience supporting enterprise endpoint management, desktop engineering, software-deployment testing, operating-system validation, or similar activities in Microsoft Windows environments.
• Experience with Microsoft Endpoint Configuration Manager (MECM), Microsoft Intune, Group Policy, and PowerShell scripting.
• Experience with application compatibility testing and documenting detailed test execution results.
• Experience testing hardware and software deployments across multiple endpoint platforms, authentication methods, and network configurations is preferred.
• CompTIA A+, CompTIA Security+, Microsoft 365 Certified: Modern Desktop Administrator Associate, or equivalent endpoint-management, desktop-support, or security certification(s).
• Strong analytical, troubleshooting, documentation, and communication skills.
• Ability to work onsite Monday–Friday, 9:00 AM–5:00 PM Eastern Time, excluding U.S. Federal holidays. Holiday work may be required with advance scheduling.
• Must undergo a High-Risk Background Investigation and complete a 7-panel drug screening.

What kind of benefits does Terrestris Offer?

We offer outstanding benefits including health, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, and work-life programs. Our award programs acknowledge employees for exceptional performance and superior demonstration of our service standards. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in our benefit programs. Other offerings may be provided for employees not within this category.

Terrestris is an Equal Opportunity Employer (EOE). Qualified applicants are considered for employment without regard to age, race, color, religion, sex, national origin, sexual orientation, disability, or veteran status. Applicants must be authorized to work in the U.S.