Information Systems Security Engineer II

Epsilon Inc; Arlington (VA); On-site; USD 80,000 - 120,000; Full time

Job summary

Join a forward-thinking IT services company as an Information Systems Security Engineer II, where you will play a pivotal role in safeguarding sensitive data and enterprise systems. In this hands-on position, you will design and implement robust security measures in a highly regulated environment, working closely with IT stakeholders and executive leadership. You will leverage your expertise in security engineering and federal compliance to drive security strategies and respond to evolving threats. With a commitment to professional development and a collaborative culture, this role offers the chance to make a significant impact in the cybersecurity field.

Benefits

Professional Development Funds ($3,000 annually)

Paid Time Off (PTO)

11 Company Paid Holidays

401(k) with Immediate Contribution

Comprehensive Benefits

Qualifications

• 5+ years of experience in security engineering with a focus on federal compliance.
• Proficient in security tools including SIEM and vulnerability scanners.

Responsibilities

• Design and implement security measures for enterprise systems.
• Conduct risk assessments and lead incident response efforts.

Skills

Security Engineering

Federal Compliance

Network Security

Scripting (Python, PowerShell)

Vulnerability Management

Education

Bachelor's Degree in Computer Science

Advanced Security Certifications (CISSP, CISM, CEH)

Tools

SIEM Platforms (Splunk, ArcSight)

Vulnerability Scanners (Nessus, Qualys)

Cloud Security (AWS, Azure)

Job description

Information Systems Security Engineer II

Information Systems Security Engineer II

Who is Epsilon:
Epsilon is an IT Services company that was founded in 2009 and has become an established leader in providing Information Technology services to both Federal Government and Commercial businesses across the United States. Epsilon is known for its solution-focused and innovative approach, aligning technology systems, tools, and processes with the missions and objectives of its customers.

Epsilon’s headquarters are in Weaverville, NC with other corporate offices in Greenville, SC, Crystal City, VA, and Denver, CO. We have employees in 30+ States across the U.S.

Why work for Epsilon:
In joining Epsilon’s team, you will have the opportunity to contribute to Epsilon’s business and customer initiatives, as well as influence our brand culture through people interaction and technology advancements.

Epsilon invests in our employees by promoting from within and enabling employees to elevate their knowledge and skill set in their profession by allocating $3,000 annually in Professional Development funds. We also offer competitive pay, comprehensive benefits through one of the largest national carriers, Paid Time Off (PTO) that increases with tenure and has a generous rollover, 11 company paid Holidays, and 401(k) with immediate contribution.

Where you’ll work:
You will work onsite in Crystal City, VA initially and then transition to onsite in Manassas, VA within the first year.

An average day:
As Information Systems Security Engineer II, you will play a key technical role responsible for designing, implementing, and managing advanced security measures to protect enterprise-wide systems and sensitive data within a highly regulated federal contract environment. As a technical expert, the ISSE will work closely with the Information Assurance (IA) Analyst team, IT stakeholders, and executive leadership to drive security strategies, security architect solutions, and respond to evolving threats. This hands-on role will apply an in-depth understanding of security engineering practices, ensure compliance assurance with federal standards, vulnerability resolution and proactively manage risks within complex domestic and international infrastructures. Additionally, in this position you will:

• Architect, design, and deploy robust security controls and mechanisms in line with federal standards such as NIST, FISMA, RMF, and other applicable regulations to secure both on-premises and cloud environments.
• Conduct detailed technical risk assessments, vulnerability assessments, and security audits; develop and implement tailored mitigation strategies to reduce system vulnerabilities and risks.
• Ensure up to date process and procedure documentation for the team.
• Oversee Security Information and Event Management (SIEM) systems, conduct deep analysis of security events, and lead technical incident response efforts, including investigation, root cause analysis, and remediation.
• Provide subject matter expertise and technical guidance to stakeholders, including IT, engineering, and executive leadership, to integrate security requirements seamlessly into system architecture and configuration.
• Serve as a technical expert in network security, firewalls, IDS/IPS, and encryption technologies; ensure ongoing compliance through continuous monitoring, STIG assessments, and vulnerability management.
• Utilize scripting languages (e.g., Python, PowerShell) to automate security processes, optimize workflows, and improve operational efficiency in threat detection and response.
• Tackle “big” problems, provide options, and drive solutions.
• Offer technical guidance and mentorship to junior analysts, promoting best practices in cybersecurity and information assurance across the organization.

Information Systems Security Engineer II

Who is Epsilon:
Epsilon is an IT Services company that was founded in 2009 and has become an established leader in providing Information Technology services to both Federal Government and Commercial businesses across the United States. Epsilon is known for its solution-focused and innovative approach, aligning technology systems, tools, and processes with the missions and objectives of its customers.

Epsilon’s headquarters are in Weaverville, NC with other corporate offices in Greenville, SC, Crystal City, VA, and Denver, CO. We have employees in 30+ States across the U.S.

Why work for Epsilon:
In joining Epsilon’s team, you will have the opportunity to contribute to Epsilon’s business and customer initiatives, as well as influence our brand culture through people interaction and technology advancements.

Epsilon invests in our employees by promoting from within and enabling employees to elevate their knowledge and skill set in their profession by allocating $3,000 annually in Professional Development funds. We also offer competitive pay, comprehensive benefits through one of the largest national carriers, Paid Time Off (PTO) that increases with tenure and has a generous rollover, 11 company paid Holidays, and 401(k) with immediate contribution.

Where you’ll work:
You will work onsite in Crystal City, VA initially and then transition to onsite in Manassas, VA within the first year.

An average day:
As Information Systems Security Engineer II, you will play a key technical role responsible for designing, implementing, and managing advanced security measures to protect enterprise-wide systems and sensitive data within a highly regulated federal contract environment. As a technical expert, the ISSE will work closely with the Information Assurance (IA) Analyst team, IT stakeholders, and executive leadership to drive security strategies, security architect solutions, and respond to evolving threats. This hands-on role will apply an in-depth understanding of security engineering practices, ensure compliance assurance with federal standards, vulnerability resolution and proactively manage risks within complex domestic and international infrastructures. Additionally, in this position you will:

• Architect, design, and deploy robust security controls and mechanisms in line with federal standards such as NIST, FISMA, RMF, and other applicable regulations to secure both on-premises and cloud environments.
• Conduct detailed technical risk assessments, vulnerability assessments, and security audits; develop and implement tailored mitigation strategies to reduce system vulnerabilities and risks.
• Ensure up to date process and procedure documentation for the team.
• Oversee Security Information and Event Management (SIEM) systems, conduct deep analysis of security events, and lead technical incident response efforts, including investigation, root cause analysis, and remediation.
• Provide subject matter expertise and technical guidance to stakeholders, including IT, engineering, and executive leadership, to integrate security requirements seamlessly into system architecture and configuration.
• Serve as a technical expert in network security, firewalls, IDS/IPS, and encryption technologies; ensure ongoing compliance through continuous monitoring, STIG assessments, and vulnerability management.
• Utilize scripting languages (e.g., Python, PowerShell) to automate security processes, optimize workflows, and improve operational efficiency in threat detection and response.
• Tackle “big” problems, provide options, and drive solutions.
• Offer technical guidance and mentorship to junior analysts, promoting best practices in cybersecurity and information assurance across the organization.

Basic Qualifications:

• As a requirement of this position, all candidates must be a U.S. Citizen. In accordance with 8 U.S.C. 1324b(a)(2)(C) , Epsilon will not consider candidates for this position who do not meet the aforementioned conditions.
• Minimum of 5 years as a system security engineer or information security engineer, with a strong technical background in security engineering and federal compliance.
• Proficient with security tools and technologies, including SIEM platforms (e.g., Splunk, ArcSight), vulnerability scanners (e.g., Nessus, Qualys), endpoint protection (e.g. ESS, Tellix), and cloud security in AWS, Azure, and hybrid environments.
• In-depth understanding of NIST SP 800-53, FISMA, RMF, and continuous monitoring requirements; experience with STIG compliance and vulnerability management.
• Proficiency in scripting languages (Python, PowerShell, Ansible) for security automation and process optimization.
• Advanced skills in network security principles, firewall management, intrusion detection/prevention systems, encryption technologies, and endpoint security.
• Preferred certifications include CISSP, CISM, CEH, or equivalent advanced security certifications.

Other Requirements:

• Must have an active DoD Secret clearance and be eligible to obtain Top Secret with SCI eligibility.
• Will be subject to a federal background investigation.

Physical Demands and Working Conditions:
Listed below are the physical or mental requirements necessary for the job's performance. Reasonable accommodation may be made to enable individuals with disabilities to perform essential job functions:

• Prolonged periods of computer desk work.
• Dexterity of hands and fingers to operate a computer keyboard and other computer components.
• Speaking and hearing are sufficient to converse and understand conversations, both in-person, telephone, and virtual meetings.
• The cognitive skills needed to complete tasks, including abilities such as learning, remembering, focusing, categorizing, and integrating information for decision-making, problem-solving, and comprehending.
• Ability to learn new tasks, remember processes, maintain focus, complete tasks independently, make timely decisions in the context of a workflow, and the ability to communicate with managers and co-workers.
• Mental aptitude to respond appropriately in high-pressure situations or deadline-driven environments.
• Maintain a professional emotional response when working with others.

Connect directly with your dedicated recruiter, Jessica, on Epsilon’s careers page.
www.epsilon-inc.com/careers


Epsilon is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applications will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. EEO/AA: Disabled/Vets.

Please clickhereto review your rights under EEO policy.

If you are an individual with a disability and need special assistance or reasonable accommodation in applying for employment with Epsilon, Inc., please contact our Recruiting department by phone [phone] or by email [e-mail].





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