Information Systems Security Officer Information Systems Security Engineer ISSOISSE

Expression; Washington (District of Columbia); On-site; USD 100,000 - 140,000; Full time

Job summary

A leading company in information technology is seeking an experienced Information Systems Security Officer to support secure, cloud-based application environments. The ideal candidate will have a strong background in cybersecurity compliance, technical skills, and a proactive approach to problem-solving. Responsibilities include ensuring compliance with security standards, developing security plans, and collaborating with teams to enforce secure infrastructure.

Benefits

401k matching

PPO and HDHP medical/dental/vision insurance

Complimentary life insurance

Generous PTO and holiday leave

Onsite office gym access

Commuter Benefits Plan

Qualifications

• Minimum 5 years of experience in FISMA compliance and NIST RMF.
• DoD 8570 IAT Level II or IAM Level I certification (e.g., CompTIA Security+).
• Experience in cloud environments such as AWS & Azure.

Responsibilities

• Ensure compliance with NSS security standards and proper handling of classified information.
• Develop and maintain System Security Plan (SSP) and Security Assessment Report (SAR).
• Monitor infrastructure to maintain 99.9% uptime and produce performance reports.

Skills

Cybersecurity compliance

Problem-solving

Technical skills

Education

Bachelor's degree in Computer Science, IT, or related field

Tools

Xacta 360

AWS

Azure

SIEM

Job description

Expression Networks is seeking an experienced Information Systems Security Officer (ISSO) and Information Systems Security Engineer (ISSE) to join our team supporting secure, cloud-based application environments. The ideal candidate is a knowledgeable and customer-focused security professional with strong technical skills, proven experience in cybersecurity compliance, and a proactive approach to problem-solving.

Key Responsibilities

Ensure compliance with NSS security standards and proper handling of classified and Controlled Unclassified Information (CUI)

Enforce FedRAMP High, IL6, and Zero Trust Architecture requirements

Develop, maintain, and update :

System Security Plan (SSP)

Security Assessment Report (SAR) & Risk Assessment

Plan of Action and Milestones (POA&M)

Installation and Configuration Guides

Support and maintain Authority to Operate (ATO) via the NIST Risk Management Framework (RMF)

Implement end-to-end encryption and access controls for data at rest and in transit

Audit and secure enriched data, geospatial data, and sensitive spectrum data

Collaborate with Cybersecurity Engineers to enforce secure infrastructure and dashboard access

Ensure all team members complete cybersecurity training; submit proof to Contracting Officer's Representative (COR)

Monitor infrastructure to maintain 99.9% uptime (excluding maintenance)

Produce monthly system monitoring and performance reports, including root-cause analysis for downtime

Utilize Security Information Event Management (SIEM) and Software Security Tools to identify, report and remediate security vulnerabilities.

Required Qualifications

Minimum 5 years of experience in FISMA compliance and NIST RMF

DoD 8570 IAT Level II or IAM Level I certification (e.g., CompTIA Security+)

Experience in cloud environments such as AWS & Azure

Preferred Qualifications

Bachelor's degree in Computer Science, IT, or a related field

Additional certifications : CEH , GIAC

Experience using Xacta 360

Benefits :

Expression offers competitive salaries and benefits, such as :

• 401k matching
• PPO and HDHP medical / dental / vision insurance
• Complimentary life insurance
• Generous PTO and holiday leave
• Onsite office gym access
• Commuter Benefits Plan

About Expression :

Founded in 1997 and headquartered in Washington DC, Expression provides data fusion, data analytics, software engineering, information technology, and electromagnetic spectrum management solutions to the U.S. Department of Defense, Department of State, and national security community. Expression's culture focuses on creating immediate and sustainable value for our clients via agile delivery of tailored solutions built through constant engagement with our clients. Expression was ranked #1 on the Washington Technology 2018's Fast 50 list of fastest growing small business Government contractors and a Top 20 Big Data Solutions Provider by CIO Review.

Equal Opportunity Employer / Veterans / Disabled

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Information System Security Officer • Washington, DC, United States