> Markdown version of [/jobs/ext/4032721-mid-level-isso-security-engineer-258k-yr-ts-sci-fs-poly](https://www.wearedevelopers.com/jobs/ext/4032721-mid-level-isso-security-engineer-258k-yr-ts-sci-fs-poly). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mid-Level ISSO Security Engineer [$258k/yr+] TS/SCI-FS Poly - **Company:** SYSTOLIC, INC. - **Location:** Annapolis Junction, MD, United States - **Experience:** Experienced - **Salary:** $258,000 - **Contract:** Permanent contract - **Skills:** Systems Engineering, JIRA, Audit Trail, Cyber Security, Data Security, Identity and Access Management, Information Security Management, Public Key Infrastructure, Redmine, Product Software Implementation Methods, Data Streaming, Nessus, Vulnerability Analysis - **Published:** October 30, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9277224/mid-level-isso-security-engineer-258kyr-tssci-fs-poly ## About the Role * Degree: Technical bachelor's degree or equivalent experience * Years of experience: 10+ years * Required Certifications: DoD 8570/8140 IAM Level I * Total Compensation: $258k+ yearly ## Description * Execute security architecture and systems engineering functions supporting system accreditation and continuous monitoring. * Prepare System Security Plans (SSPs) and Risk Management Framework (RMF) accreditation packages to support authorization milestones. * Perform vulnerability assessments, interpret security scans, and track engineering tasks utilizing Jira and Redmine. * Implement PKI authentication and enforce information system security policies., * Prepare System Security Plans (SSPs) and provide recommendations to obtain and maintain system accreditations. * Develop, review, and incorporate RMF accreditation package artifacts, including system boundaries, hardware and software lists, risk assessments, data flows, and POA&Ms. * Work with security stakeholders to verify package submissions and address assessment findings. * Apply continuous monitoring techniques and utilize vulnerability assessment tools such as ACAS and Nessus to evaluate security posture. * Oversee the implementation of software patches, review audit logs, and coordinate remediation tasking via Jira and Redmine. * Implement and enforce information system security policies, standards, and PKI authentication methodologies. * Manage secure data transfers and support personnel with privileged access requests and extensions.