Senior Information Security Analyst

Job Description Advance your career while impacting our national security in cyber as Senior Information Security Analyst at GDIT. Here, technologists have many paths to grow a meaningful career supporting cyber missions and operations across the federal government.

MEANINGFUL WORK AND PERSONAL IMPACT

As an Information Security Analyst Principal, the work you’ll do at GDIT will directly support the mission of the customer by strengthening enterprise‑level cybersecurity operations and ensuring secure, compliant, and resilient systems across hybrid environments. You will play a crucial role in leading vulnerability management operations and contributing to threat detection and response activities that safeguard mission‑critical assets. Lead enterprise vulnerability management operations, including deployment, configuration, and optimization of Tenable Security Center across Linux/Red Hat environments to ensure the customer maintains a secure posture aligned with DISA STIGs, NSA guidelines, and DoW cybersecurity requirements. Collaborate with engineering, cloud, network, cybersecurity operations, and leadership teams to ensure secure configurations, rapid mitigation of vulnerabilities, and effective POA&M management across on‑prem and Azure IL5/IL6 environments. Drive continuous improvement by analyzing vulnerability data, developing actionable reporting, tuning detection rules, resolving scanner and integration challenges, and enhancing endpoint security and threat‑detection fidelity. Utilize tools such as Tenable Security Center, Microsoft Defender for Endpoint, Azure IL5/IL6 services, Linux/Red Hat administration, and enterprise security monitoring solutions to strengthen the customer’s cyber defense capabilities.

WHAT YOU’LL NEED TO SUCCEED

Bring your cyber expertise and drive for innovation to GDIT. The Information Security Analyst Principal must have: Education: Security+, bachelor’s degree, or equivalent experience Experience: 5+ years of related experience Technical skills: Tenable Security Center (Tenable.sc), Linux/Red Hat administration, DISA STIGs, NSA guidelines, DoW compliance frameworks, Azure IL5/IL6 support, Microsoft Defender for Endpoint, POA&M management, vulnerability analysis, incident response familiarity Security clearance level: TS/SCI US citizenship required Role requirements: Ability to work independently as a subject‑matter expert while collaborating with multidisciplinary teams; familiarity with RMF and NIST 800‑53 frameworks; experience supporting federal or DoW cybersecurity environments

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, competitive pay, and paid time off Community: Award‑winning culture of innovation and a military‑friendly workplace

OWN YOUR OPPORTUNITY

Explore a career in cyber at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your focus on defending and protecting what matters. The likely salary range for this position is $93,500 - $126,500. 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. 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 death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most. Our Identity Verification Process As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes. About Our Work We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission‑ready capabilities in AI, cloud, cyber and software development. Join our Talent Community to stay up to date on our career opportunities and events at Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans #J-18808-Ljbffr General Dynamics Information Technology, Inc.