Linux / Windows System Administrator

Position Summary:Supports administration and operations of Linux and Windows systems, including provisioning, configuration, monitoring, and maintenance of servers across the hosting environment.The role works in an enterprise hosting environment and requires practical capability in enterprise linux and windows system administration; provisioning and configuration.What You Will Be Responsible For:performs Tier 2/3 troubleshooting, root cause analysis, and system updates, patches, and performance tuning.supports onboarding of applications and systems.executes changes through ITSM processes.maintains configuration accuracy, documentation, and compliance. Supporting Deliverables: D-TEC-01 and D-TEC-07. D-TEC-03 and D-TEC-04. D-OM-01 and D-OM-02. D-ITSM-01 and D-ITSM-02. D-TEC-06.Core Skills You Need on Day One:Enterprise Linux and Windows system administrationprovisioning and configurationpatching and updatesmonitoring and troubleshootingperformance tuningautomation and scriptingvirtualization environmentsand ITIL-aligned ITSM processes.

Roles and Responsibilities

Supports administration and operations of Linux and Windows systems, including provisioning, configuration, monitoring, and maintenance of servers across the hosting environmentHow the Role Operates:Provide Tier 2/3 operational support, troubleshoot complex issues, perform root cause analysis, and drive issues through resolution.Use ITIL-aligned ITSM processes for incidents, changes, configuration tracking, approvals, and operational documentation.Keep system/configuration records, technical documentation, status information, and implementation details accurate and current.Support onboarding, implementation, and rollout activities while coordinating dependencies with engineering and operations teams.Monitor service/system performance, identify trends or risks, and take or recommend corrective action before issues affect service delivery.What Success Looks Like:Systems and services remain stable, supportable, documented, and compliant with operational standards.Incidents and technical issues are diagnosed efficiently, root causes are addressed, and recurring problems are reduced.Changes, patches, provisioning, maintenance, and onboarding activities are executed accurately through approved processes.Deliverables You Will SupportYour responsibility:Provide accurate operational/technical inputs, maintain supporting records, and complete assigned sections or artifacts early enough for internal quality review and Government submission.D-TEC-01 – Engineering Design Document / Implementation Plan: Document architecture/design, test plans, and implementation steps for new services or significant modifications and support Change Management approval. Timing: As required.D-TEC-07 – Operational Rollout Plan: Plan operational integration of new technology, including SOPs, training, monitoring integration, cutover steps, and operational readiness. Timing: As required for new technology/onboarding.D-TEC-03 – Monthly System Performance & Availability Report: Provide system health, availability, SLA uptime, CPU/memory/storage trends, capacity forecasts, and service interruption summaries. Timing: Monthly, as agreed upon award.D-TEC-04 – Root Cause Analysis (RCA) Report: Document the incident timeline, root cause, business impact, corrective actions, and recurrence-prevention measures for P1/P2 or major service-impacting incidents. Timing: Within 72 hours of incident resolution.D-OM-01 – Monthly Patch Management Execution Report: Report patch compliance, success/failure rates, approved exceptions, and remediation plans. Timing: First day of each month.D-OM-02 – Disaster Recovery / Restore Test Report: Document recovery-test results, test logs, findings, and corrective action plans. Timing: Semi-annually.D-ITSM-01 – CMDB Accuracy Report: Report CMDB audit results, data-accuracy metrics, discrepancies, and remediation actions needed to maintain accurate configuration-item inventory. Timing: First day of each quarter.D-ITSM-02 – Change Management Process Report: Report RFC volume, change success rate and trends, and include ERB/CAB meeting minutes. Timing: First day of each month.D-TEC-06 – Technical Documentation Library: Create and continuously maintain SOPs, configuration guides, and system-administration documentation reflecting the current environment. Timing: Initial delivery 60 days after award; continuously maintained.Candidate Profile:Hands-on experience performing the core responsibilities and using the technologies/processes identified above in an enterprise IT environment.Able to work independently on assigned activities while coordinating effectively across engineering, operations, service management, and program teams.Strong troubleshooting, documentation, communication, and follow-through skills; comfortable working in structured change and compliance environments.About Our Company:22nd Century Technologies, Inc. (TSCTI) is a leading IT Services Integrator and Workforce Solutions provider, serving the public and private sectors since 1997. As a Certified National Minority Business Enterprise (MBE), TSCTI has built a nationwide workforce of 6,000+ professionals, including 600+ Cybersecurity Subject Matter Experts (SMEs), supporting clients across all 50 U.S. states, Canada, and Mexico.With 14 regional offices and headquarters in McLean, Virginia, TSCTI delivers mission-critical technology, workforce, and managed services solutions across Federal, Department of Defense (DoD), State, Local, Education, Healthcare, and Commercial markets.Federal & Defense:TSCTI supports 500+ Federal projects and 160 DoD contracts, serving 14 of the 15 Federal Executive Departments and 37 additional Federal agencies. Our Federal capabilities span IT modernization, cybersecurity, cloud, digital transformation, infrastructure, application development and modernization, managed services, and workforce solutionsState, Local & Education (SLED):TSCTI supports government and educational organizations nationwide, with 350+ SLED projects, serving all 50 states, 98 counties, 105 cities, 92 quasi-government organizations, and 37 school districts. Our services support critical areas including public safety, healthcare, education, transportation, justice, human services, finance, cybersecurity, and digital transformation.Commercial:TSCTI has significantly expanded its private-sector presence and currently supports 80+ Fortune 500 and other commercial clients, providing technology, digital transformation, cloud, cybersecurity, infrastructure, managed services, and workforce solutions.Quality, Security & Compliance:Our delivery organization follows mature, industry-recognized processes and certifications, including CMMI Level 3 for Development and Services, ISO 9001, ISO 20000, and ISO 27001, supporting our commitment to quality, security, reliability, and operational excellence.Awards & Recognition:TSCTI has been recognized for business growth, technology excellence, customer service, diversity, and workplace excellence, including recognition by Forbes as a Best Company to Work For, America's Best Large Employers, America's Greatest Workplaces for Diversity by Newsweek, Inc. 5000 recognition, CRN Fast Growth 150, CRN Solution Provider 500, NVTC Tech 100, CIO Review, Virginia Values Veterans (V3), and recognition from the State of Maryland for Outstanding Services during the 2020 Presidential ElectionToday, TSCTI combines technology, cybersecurity, AI and innovation, digital transformation, cloud, IT infrastructure, managed services, and workforce solutions to help government agencies, businesses, and communities solve complex challenges and deliver better outcomes. TSCTI's current portfolio represents $3B+ in award value and a growing nationwide presenceEqual Employment Opportunity:All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.