Senior Network Engineer

About this role

Company Overview: Samsung SDS is the digital arm of the Samsung group and a global provider of cloud and digital transformation innovations. Samsung SDS delivers enterprise-grade solutions and services in cloud, secure mobility, analytics / AI, digital marketing and digital workspace. We enable our customers in government, financial services, healthcare, and other industries to drive business in a hyper-connected economy helping them to increase productivity, safeguard assets, and make smarter decisions. Join Samsung SDS America and be part of the cutting-edge technology at our state-of-the-art Pharmaceutical Manufacturing facility in Rockville, Maryland. We are looking for an experienced Senior Network Engineer to join our Enterprise Network team. RELOCATION WILL NOT BE OFFERED FOR THIS POSITION. Position Summary: 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. Responsibilities: Overnight On-Call & Expert Tier-3 Support Overnight 1st-Line Responder: 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. Escalation Resolution: Resolve complex L2/L3 infrastructure, application connectivity, and P2P VPN issues escalated by team members and internal customers. Deep Packet Analysis: Setup, collect, and analyze packet captures and SSL certificates to troubleshoot intricate network and application behaviors. SLA & Risk Management: Monitor network performance metrics proactively, ensure immediate remediation of incidents, and formulate Root Cause Analysis (RCA) for major outages. Architecture, Project Implementation & Technical Governance AP(Access Point), WLS(Wireless LAN Controller) management Advanced Architecture: Support the design, migration, and implementation of complex network topologies, traffic engineering, multicast environments, and load balancing. Project Leadership: Drive multiple network infrastructure projects focusing on facility expansion, hardware/software upgrades, and technology improvements. Change Management: Review, provide feedback, and approve team members' Release Plans; validate technical accuracy for network changes and represent the network team in Change Management meetings. Lab Validation: Oversee Proof of Concept (POC) testing in lab environments for hardware/software validation, workarounds, bug fixes, and impact analysis. Operational Excellence & Team Leadership Mentorship: Actively mentor junior/mid-level network engineers, cultivate a collaborative learning culture, and drive internal knowledge transfer sessions. Compliance Enforcement: Enforce strict adherence to Standard Operating Procedures (SOPs), standard configurations, corporate change-control, and security policies. Lifecycle Administration: Manage maintenance window coordination, asset inventories, hardware staging, peer reviews, and IP address management (IPAM). Documentation: Maintain pristine, up-to-date documentation for all network systems (LAN/DC/Wireless/Firewalls) and deliver weekly operational summaries to management. Requirements Education: Bachelor’s Degree in Computer Science, Information Technology, or a related field. Experience: 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. Certification: Current CCNP Enterprise or CCIE certification (or expired within the last 3 years). Load Balancing Expertise: 3–5 years of dedicated, hands-on experience implementing F5 Load Balancing setups, including advanced iRules configuration. Advanced Routing Protocols: Deep, proven expertise in configuring and troubleshooting complex routing protocols: EIGRP, OSPF, BGP, MP-BGP, PIM, and EVPN. Enterprise Technologies: Strong proficiency in VPNs, IPsec, vPC, STP, MLAG, LACP, VRF, IPv4 Subnetting, 802.1X, TACACS+, SYSLOG, Cisco IOS, and Cisco NX-OS. Manufacturing Multicast: Experience with PIM, MSDP, Anycast-RP, and Multicast deployment within manufacturing or industrial topologies. Core Attributes: Exceptional analytical and communication skills across all organizational levels; a strong sense of ownership, urgency, and customer focus. Industry Specifics: Experience supporting high-availability enterprise networks within large-scale, 24/7 manufacturing or biotech environments. Server Connectivity: Extensive experience supporting advanced server network connectivity (Teaming, vPC, LACP, etc.). Specialized Certifications: F5 Load Balancers or Palo Alto Firewalls certifications coupled with 5+ years of hands-on experience. Automation & Scripting: Familiarity with Unix/Linux environments and the ability to script in Python, Ansible, or other automation frameworks to maximize efficiency. Benefits Samsung SDSA offers a comprehensive suite of programs to support our employees: Top-notch medical, dental, vision and prescription coverage Wellness program Parental leave 401K match and savings plan Flexible spending accounts Life insurance Paid H