Senior Network Engineer

Samsung SDS America•Rockville, MD

8d•Onsite

About The Position

Samsung SDS America is seeking a highly skilled and experienced Senior Network Engineer to join our Network Operations Team at the Samsung Biologics manufacturing facility in Rockville, MD. In this role, you will serve as the senior technical authority responsible for managing, maintaining, and implementing complex network projects while resolving high-level technical issues. You must be a subject matter expert in Routing & Switching, with extensive, hands-on experience in enterprise-grade VPNs, Load Balancers, Firewalls, and Wireless technologies. Key expectations include leading infrastructure expansion projects, generating Root Cause Analysis (RCA) reports, and mentoring junior team members. Due to the 24/7 mission-critical nature of the manufacturing facility, this position requires active participation in an on-call rotation to serve as the primary (1st-line) responder for urgent network issues and escalations during overnight/after-hours.

Requirements

Bachelor’s Degree in Computer Science, Information Technology, or a related field.
7+ years of continuous experience in large-scale, enterprise-class network operations, design, and implementation with a heavy focus on Cisco devices (Catalyst, Nexus), Firewalls, and Load Balancers.
Current CCNP Enterprise or CCIE certification (or expired within the last 3 years).
3–5 years of dedicated, hands-on experience implementing F5 Load Balancing setups, including advanced iRules configuration.
Deep, proven expertise in configuring and troubleshooting complex routing protocols: EIGRP, OSPF, BGP, MP-BGP, PIM, and EVPN.
Strong proficiency in VPNs, IPsec, vPC, STP, MLAG, LACP, VRF, IPv4 Subnetting, 802.1X, TACACS+, SYSLOG, Cisco IOS, and Cisco NX-OS.
Experience with PIM, MSDP, Anycast-RP, and Multicast deployment within manufacturing or industrial topologies.
Exceptional analytical and communication skills across all organizational levels; a strong sense of ownership, urgency, and customer focus.
Experience supporting high-availability enterprise networks within large-scale, 24/7 manufacturing or biotech environments.
Extensive experience supporting advanced server network connectivity (Teaming, vPC, LACP, etc.).

Nice To Haves

Specialized Certifications: F5 Load Balancers or Palo Alto Firewalls certifications coupled with 5+ years of hands-on experience.
Familiarity with Unix/Linux environments and the ability to script in Python, Ansible, or other automation frameworks to maximize efficiency.

Responsibilities

Act as the primary, first-line responder for overnight and after-hours on-call escalations, ensuring immediate containment, troubleshooting, and resolution of critical network incidents.
Resolve complex L2/L3 infrastructure, application connectivity, and P2P VPN issues escalated by team members and internal customers.
Setup, collect, and analyze packet captures and SSL certificates to troubleshoot intricate network and application behaviors.
Monitor network performance metrics proactively, ensure immediate remediation of incidents, and formulate Root Cause Analysis (RCA) for major outages.
Support the design, migration, and implementation of complex network topologies, traffic engineering, multicast environments, and load balancing.
Drive multiple network infrastructure projects focusing on facility expansion, hardware/software upgrades, and technology improvements.
Review, provide feedback, and approve team members' Release Plans; validate technical accuracy for network changes and represent the network team in Change Management meetings.
Oversee Proof of Concept (POC) testing in lab environments for hardware/software validation, workarounds, bug fixes, and impact analysis.
Actively mentor junior/mid-level network engineers, cultivate a collaborative learning culture, and drive internal knowledge transfer sessions.
Enforce strict adherence to Standard Operating Procedures (SOPs), standard configurations, corporate change-control, and security policies.
Manage maintenance window coordination, asset inventories, hardware staging, peer reviews, and IP address management (IPAM).
Maintain pristine, up-to-date documentation for all network systems (LAN/DC/Wireless/Firewalls) and deliver weekly operational summaries to management.