Site Reliability Engineer - TS/SCI with Poly

Type of Requisition: Pipeline Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Automation Tools, Enterprise Infrastructures, Enterprise Operations, Site Reliability Engineering Certifications: None Experience: 5 + years of related experience US Citizenship Required: Yes Job Description: SITE RELIABILITY ENGINEER (SRE) YOUR IMPACT Own your opportunity to support national defense. Your work will help keep critical operations secure and connected across the global enterprise—directly, contributing to a mission that protects our nation every day. CIO Infrastructure Services (CIS) is evolving—and we want the talented professionals already powering the mission to help shape its future. As an incumbent supporting our customer’s enterprise IT operations, you bring essential knowledge that strengthens continuity, accelerates transition success, and drives innovation. By joining CIS, you can continue the work you excel at while gaining new opportunities to grow in modernization, engineering, automation, and enterprise‑level operations. Your experience matters here, and we’re committed to investing in your success as you continue supporting a mission that relies on your expertise. MEANINGFUL WORK AND PERSONAL IMPACT As a Site Reliability Engineer (SRE) supporting CIS, you will ensure the reliability, availability, and performance of critical enterprise systems across multiple networks and environments. You’ll design and support monitoring capabilities, respond to system alerts, improve resilience, automate repeatable tasks, and ensure services operate efficiently on a scale. Your work strengthens operational stability, reduces downtime, and improves the user experience across a large, complex infrastructure. KEY RESPONSIBILITIES: Collaborate with engineering, operations, and tech‑refresh teams to analyze recurring incidents, prioritize improvements, and guide the rollout of reliable new features Apply Infrastructure‑as‑Code (IaC), automation, and DevSecOps practices to improve consistency, efficiency, and reliability across environments Integrate engineering and operations workflows to enhance service reliability, reduce downtime, and ensure stable system performance Design, implement, and support highly scalable, resilient, and fault‑tolerant services and infrastructure components Bridge the gap between traditional engineering and operations by optimizing system architectures for scalability, performance, and reliability Identify, assess, and mitigate risks that may impact system performance, availability, or user experience Monitor systems using alerts, logging, ticketing data, and performance indicators to maintain system health and minimize disruptions Partner with operations teams to reduce Mean Time to Resolution (MTTR) and ensure rapid, effective response to service issues Maintain and improve internal SRE tools, including those supporting troubleshooting, CI/CD pipelines, alerting, and cross‑team communication WHAT YOU’LL NEED TO SUCCEED: Clearance: Active TS/SCI with an active a Polygraph Education: Bachelor’s degree in an IT-related field, or 10+ years of relevant IT experience in lieu of a degree Certification: Meet DoD 8140 Information Assurance Workforce certification requirements (e.g., CompTIA Security+) Hands‑on experience with enterprise monitoring tools (e.g., SCOM, SolarWinds, AppDynamics, or similar) Strong knowledge of system reliability practices, including high availability, performance tuning, automation, alerting, and troubleshooting Experience supporting large‑scale, multi‑network infrastructure environments Ability to interpret monitoring data, diagnose issues, and recommend improvements to stability and resilience Strong communication, documentation, and coordination skills Familiarity with ITIL/ITSM frameworks and change management processes is highly desired GDIT IS YOUR PLACE At GDIT, the mission is our purpose, and our people are at the center of everything we do. Growth: AI-powered career tool that identifies career steps and learning opportunities Support: An internal mobility team focused on helping you achieve your career goals Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off Community: Award-winning culture of innovation and a military-friendly workplace OWN YOUR OPPORTUNITY Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward. #CIS The likely salary range for this position is $128,039 - $173,229. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range. Scheduled Weekly Hours: 40 Travel Required: None T elecommuting Options: Onsite Work Location: USA MD Annapolis Junction Additional Work Locations: USA CO Colorado Springs, USA DC Washington, USA VA Springfield Total Rewards at GDIT: Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental deat