> Markdown version of [/jobs/ext/3938426-senior-systems-administrator-cybersecurity-network-operations-5088](https://www.wearedevelopers.com/jobs/ext/3938426-senior-systems-administrator-cybersecurity-network-operations-5088). 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).

---

# Senior Systems Administrator - Cybersecurity & Network Operations (5088)

- **Company:** Three Saints Bay, Llc
- **Location:** Philadelphia, PA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Cyber Security, Information Systems, Computer Programming, File Server, Web Servers, Network Administration, Systems Integration, Computer Networking Systems, Computer Network Operations, SC Clearance, Navsea, Information Technology
- **Published:** October 26, 2026
- **Apply:** https://www.phillyjobs.com/job.asp?id=3467338279&tx=KK303PFK&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

* Secret Clearance
 * Education Requirements
 * Bachelor's degree from an accredited college or university in one of the following disciplines:
 * Information Technology
 * Engineering
 * Computer Science
 * Information Systems
 * Experience Requirements
 * Candidates may qualify at one of two levels:
 * Level IV
 * Minimum of ten (10) years of experience in IT and computer programming
 * At least three (3) years supporting development of tools for NSWCPD and NAVSEA SEA21 programs
 * Advanced proficiency in cybersecurity and systems integration
 * Level III
 * Minimum of seven (7) years of experience in engineering, computer science, or information systems
 * Demonstrated experience supporting daily operations of network systems including workstations, file servers, and web servers
 * Intermediate proficiency in cybersecurity and network administration
 * Required Certifications
 * Certifications must align with the Cybersecurity Workforce (CSWF) and DoD IAT Level standards:
 * Level IV - IAT-3 / Advanced CSWF Proficiency
 * One or more of the following:
 * CASP+ CE
 * CCNP Security
 * CISA
 * CISSP (or Associate)
 * GCED
 * GCIH
 * Level III - IAT-2 / Intermediate CSWF Proficiency
 * One or more of the following:
 * CCNP Security
 * CySA+ GICSP
 * GSEC
 * Security+ CE
 * SSCP

## Description

* Administer and secure enterprise-level IT systems and networks
 * Support development and deployment of tools for Navy programs
 * Monitor and maintain server infrastructure, including web and file servers
 * Implement cybersecurity protocols and ensure compliance with DoD standards
 * Collaborate with engineering and program teams to support operational readiness