Information Systems Security Engineer (ISSE)

Evans & Chambers Technology; Arlington (VA); On-site; USD 100,000 - 130,000; Full time

Job summary

Evans & Chambers Technology in Arlington, VA is looking for an Information Systems Security Engineer (ISSE) to support cloud-based applications within a classified environment. The ISSE will work with a multidisciplinary team focusing on security aspects of technical developments.

Qualified candidates must have 6-10 years of ISSE experience, a TS/SCI clearance, and a technical degree. Desired skills include proficiency with Linux, scripting, and strong knowledge of NIST security guidelines. The role involves hands-on tasks in a dynamic Agile setting.

Qualifications

• 6-10 years of relevant ISSE or cybersecurity experience.
• Active TS/SCI with Polygraph required.
• Hands-on Linux experience, including command line proficiency.
• Strong knowledge of networking fundamentals.
• Experience working within Agile development teams.

Responsibilities

• Identify and implement NIST SP 800-53 security controls.
• Lead security scans and analyze findings.
• Develop secure architecture designs.
• Conduct vulnerability scanning and remediation strategies.
• Support system accreditation efforts.

Skills

Linux experience

Scripting in Bash or Python

Networking fundamentals

Agile development

NIST SP 800-53 knowledge

CISSP or CompTIA Security+

Communication skills

Education

BS in a technical discipline or equivalent experience

Tools

AWS

Ansible

Terraform

Job description

Position Overview

Evans & Chambers Technology (EC) is seeking an experienced Information Systems Security Engineer (ISSE) to support a technical development program centered on cloud-based applications and associated infrastructure operating in a highly secure, classified network environment. The ISSE will integrate directly into a multidisciplinary team that includes software developers, systems engineers, DevOps engineers, database administrators, and systems architects.

Clearance: Active TS/SCI with Polygraph.
Location: Arlington, VA Onsite.

Evans & Chambers partners with the US national defense community to create fully integrated, resilient, and innovative digital solutions that enable them to make smart decisions in real-time. We work with our customers on everything from conquering their data to improving and safeguarding IT infrastructure. Our ultimate goal is to enhance our nation’s ability to identify, address, and act—no matter what challenges arise.

What a Typical Day Looks Like

• Participate in daily Agile standup (scrum) meetings and provide status updates on assigned Jira issues.
• Attend ad-hoc Technical Exchange Meetings (TEMs) to assess security impacts of proposed architectural and system changes.
• Lead or assist with security scans; analyze and report on findings and their system impact.
• Review externally reported security findings (CVEs) and conduct impact analysis with recommended remediation paths.
• Evaluate upcoming system changes and new features for security implications during team design reviews.

Primary Responsibilities

• Identify, select, implement, and assess NIST SP 800-53 security and privacy controls.
• Develop and integrate secure configuration baselines per DISA STIGs and CIS benchmark guidelines.
• Contribute to the design of secure architectures and system designs.
• Ensure security requirements are embedded throughout the System/Software Development Life Cycle (SDLC).
• Execute Continuous Monitoring (ConMon) activities in support of Assessment and Authorization (A&A) requirements.
• Create, review, and maintain A&A artifacts and supporting documentation.
• Perform security analysis and monitoring across a 100% AWS cloud‑based environment.
• Conduct vulnerability scanning, analyze results, and develop remediation strategies and security implementations.
• Interface with Information System Security Managers (ISSMs) to support system accreditation efforts.
• Lead or participate in TEMs; document outcomes and brief management as needed.

Required Qualifications

• 6-10 years of relevant ISSE or cybersecurity experience.
• Active TS/SCI with Polygraph.
• BS in a technical discipline or equivalent demonstrable experience.
• CISSP (Certified Information Systems Security Professional) or CompTIA Security+ preferred.
• Hands‑on Linux experience, including proficiency with the command line.
• Scripting and programming experience in Bash, Python, or similar languages.
• Solid understanding of networking fundamentals—ports, routing, subnets, VPNs, firewalls, and troubleshooting.
• Experience working within Agile development teams and workflows.
• Strong working knowledge of NIST SP 800-37, NIST SP 800-53, NIST SP 800-160, DISA/CIS STIGs, and CVE management.
• Experience with RMF workflow tools and processes.
• Strong written and verbal communication skills; able to clearly articulate findings and recommendations, and receptive to alternative approaches raised by team members.

Desired Qualifications

• Experience with Infrastructure as Code (IaC) tools such as Ansible, Terraform, or similar automation platforms.
• Prior experience working in cloud‑based environments.

All employment opportunities are made without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status or any other basis protected by law.