Lester Artis

About Lester Artis

Cleared Cybersecurity Professional with a Bachelor of Science in Cyber Operations from Old Dominion University and hands-on experience in defense-sector environments. I bring a proven track record in Risk Management Framework (RMF) implementation, vulnerability assessment, and policy enforcement across complex enterprise systems. I’ve successfully led initiatives that strengthened compliance with DoD cybersecurity standards and improved overall security posture. My technical toolkit includes tools like Nessus, ACAS, Splunk, and Evaluate-STIG, and I’m adept in scripting, automation, and AI-driven cybersecurity solutions. Known for my analytical thinking, cross-functional collaboration, and commitment to continuous learning, I deliver secure, compliant, and efficient solutions in mission-critical environments.

Experience

1. Cybersecurity Analyst

   Pioneertech, Inc

   Oct 2024 — Present

   Supported RMF compliance for JS-J7 enterprise systems by managing eMASS operations, including implementing NIST 800-53 and CNSSI 1253 controls, entering test results, uploading artifacts, and coordinating the documentation and accreditation processes. Achieved 100% compliance and successful ATO renewals with no delays in control implementation.Created and tracked POA & Ms in eMASS to monitor remediation efforts, coordinating with system owners and security teams to ensure on-time completion of security findings, maintaining continuous authorization for all systems.Updated and enforced cybersecurity policies to align with DoD and federal requirements (DoDI 8500.01, 8510.01), implementing Cyber Task Orders, Executive Orders, and DISA/FISMA regulations, achieving full compliance with federal cybersecurity mandates and zero policy violations during audits.Applied STIGs and ACAS scans to assess system configurations, achieving a 95% STIG compliance rate within six months and reducing high-risk vulnerabilities by 40% across critical systems.Collaborated with engineering, system admins, network engineers, and developers to gather inventories and resolve vulnerability assessment issues, enabling secure deployment of 15+ mission-critical applications and reducing deployment delays by 60%.Used RMF Knowledge Service to improve control application accuracy by 30%, translating complex requirements into actionable strategies and reducing errors that caused ATO delays.Validated security controls within the CAC and developed SSPs, PPSM lists, and implementation plans, improving audit prep efficiency by 50% and supporting successful audits with zero documentation deficiencies.

Education

• Old Dominion University

  Bachelor of Science, Cyber Operations

  2019 — 2024