Network Engineer Security

Jeevan Sreeram

Email: ******************@*****.*** Tel: +1-984-***-****

PROFESSIONAL SUMMARY

• Dynamic Network Engineer with 4+ years of experience in designing, deploying, and managing high-performance network infrastructures.

• Expertise in configuring and optimizing network protocols (TCP/IP, UDP, DHCP, DNS, SNMP, NTP) and routing & switching technologies (VLANs, VTP, STP, OSPF, EIGRP, BGP) to ensure efficient and secure connectivity.

• Skilled in implementing and managing network security solutions, including NGFW, IPS/IDS, VPNs, IPsec, MFA, and RADIUS to safeguard enterprise networks.

• Proficient in cloud platforms (Microsoft Azure, AWS) and network monitoring tools (SolarWinds, PRTG, Nagios, Splunk) to ensure optimal network performance and proactive issue resolution.

• Experienced in network automation using Python and Ansible, streamlining processes and improving network efficiency.

• Strong background in working with network hardware (Cisco routers, switches, Palo Alto, Fortinet firewalls) and managing network tools like Wireshark, Nmap, and tcpdump for diagnostics and troubleshooting.

• Demonstrated ability to collaborate across teams and manage ITIL-based workflows and ticketing systems

(Jira, ServiceNow) to ensure timely issue resolution and continuous service improvement. TECHNICAL SKILLS

• Network Hardware and Software: Routers (Cisco ISR 921, ISR 4431, ISR 1120, ISR 8200), Switches (Cisco Catalyst 2900XL, 3500XL, 2950, 3550, 3750), Firewalls (Palo Alto, Checkpoint, Cisco ASA, Fortinet), Configuration and management

• Network Protocols: TCP/IP, UDP, DHCP, DNS, SNMP, NTP, HTTP, HTTPS, FTP, SSH, VPN, MPLS, QoS

• Routing & Switching: VLANs, VTP, STP, RSTP, MSTP, 802.1q, EtherChannel, VRRP, OSPF, RIP, EIGRP, BGP

• Network Security: NGFW, IPS/IDS, ACLs, IPsec, VPN, MFA, RADIUS, AAA, SIEM, 802.1X

• Network Monitoring: SolarWinds, PRTG, Nagios, NetFlow Analyzer, Splunk

• Network Tools: Wireshark, Nmap, tcpdump, SecureCRT, Putty, Traceroute

• Cloud Platforms: Microsoft Azure, AWS

• Automation & Scripting: Python, Ansible, C

• Methodologies: Agile, Waterfall, ITIL

• Operating Systems: Windows, Linux, Mac

• Ticketing Systems: Jira, ServiceNow

PROFESSIONAL EXPERIENCE

Goldman Sachs Global May 2023 to Present

Network Engineer

• Deployed and optimized Cisco Catalyst 3560, 3750, and 9000 series switches, ensuring 99.9% uptime across core and edge networks.

• Configured VLANs, VLAN trunking, inter-VLAN routing, and port security to enhance network efficiency and security.

• Led the migration of legacy Juniper switches to Cisco Nexus 7000/9000 series, improving network performance by 30% and minimizing service disruptions.

• Implemented BGP multi-homing, ISP peering, and resolved internet performance issues, optimizing network stability and reducing downtime by 25%.

• Enhanced wireless network security by configuring WPA2 encryption, 802.1X authentication, and role-based access control (RBAC) on Aruba APs.

• Utilized SolarWinds NMS for proactive network monitoring, identifying and resolving issues, improving device health and configuration management.

• Configured GRE tunnels, site-to-site VPNs, and DMVPN with IPSec encryption in Azure Virtual Networks (VNets), ensuring secure remote connections.

• Deployed SSL offloading on F5 LTM/GTM modules, boosting server performance by 15% by offloading encryption/decryption tasks.

• Integrated Palo Alto Networks Threat Prevention (IPS, Antivirus) in DMZ to protect against network threats and enhance security posture.

• Monitored and optimized network performance using Azure Monitor, proactively resolving issues and reducing network downtime by 20%.

Co-forge Jan 2019 to Jul 2021

Network Engineer

• Troubleshot and resolved VTP and trunking issues on Cisco Catalyst 3560, 3750, and 4500 switches, improving network reliability by 20%.

• Configured and maintained HSRP on Cisco 2600, 2800, and 3600 routers, ensuring redundant network paths and 99.9% availability.

• Deployed route redistribution and summarization strategies in OSPF and BGP, enhancing routing efficiency and minimizing convergence time.

• Designed and implemented secure VPN solutions for remote access and site-to-site connectivity, ensuring data confidentiality and network security.

• Utilized Nagios for real-time network monitoring, improving device uptime and reducing maintenance response times by 15%.

• Developed comprehensive network diagrams using Visio, ensuring accurate representation of network topology and IP addressing schemes.

• Led root cause analysis for TCP/IP issues in multi-protocol Ethernet environments, improving network troubleshooting efficiency by 25%.

• Implemented ACLs on Cisco ASA firewalls to control traffic flow and mitigate security risks, enhancing network security by 30%.

• Collaborated with cross-functional teams for LAN infrastructure installations, ensuring timely completion of network upgrades and relocations.

• Conducted network performance assessments and optimized configurations to enhance scalability and resilience across enterprise networks.

EDUCATION

• Master of Science in Computer Science

Saint Leo University, Tampa, FL

• Bachelor of Technology in Electronics and Communication Engineering Vel Tech University, Chennai, India

CERTIFICATIONS

• Cisco Certified Network Associate

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