Posted:
12/3/2025, 1:41:14 AM
Location(s):
Columbia, Maryland, United States ⋅ Maryland, United States
Experience Level(s):
Junior ⋅ Mid Level
Field(s):
IT & Security
We are seeking a motivated and detail-oriented Junior Information System Security Officer (ISSO) to support our cybersecurity operation in Columbia, MD. The ideal candidate will have foundational knowledge of the Risk Management Framework (RMF) process and a strong desire to grow in the field of information security and compliance. The candidate will support the company’s system infrastructure system security plan and all related processes under the guidance of the Lead ISSO. This is an excellent opportunity for individuals looking to start their career in cybersecurity.
Primary Responsibilities
Basic Qualifications
High school diploma required; bachelor’s degree in a related technical field preferred (experience may be considered in lieu of degree).
Minimum of 2 years of relevant experience.
Current DoD 8140.03-compliant IAM Level I certification (e.g., CompTIA Security+, (ISC)² CAP, or GIAC GSLC) and ability to maintain compliance throughout employment.
Working knowledge of Risk Management Framework (RMF), NIST, and CNSS cybersecurity requirements, including NIST 800-53 security controls and compliance frameworks.
Strong understanding of cybersecurity risk management techniques.
Excellent verbal and written communication skills; able to communicate effectively across all levels of the organization.
Ability to work independently and collaboratively within a team, demonstrating adaptability, organization, and problem-solving skills.
Preferred Qualifications
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Website: https://www.leidos.com/
Headquarter Location: Reston, Virginia, United States
Employee Count: 10001+
Year Founded: 1969
IPO Status: Public
Industries: Computer ⋅ Government ⋅ Information Services ⋅ Information Technology ⋅ National Security ⋅ Software