SHIVA MADDOJU
Chicago,IL
Summary
Dynamic Senior Network Engineer with extensive experience at PepsiCo, specializing in network automation and security. Proven expertise in optimizing performance through advanced traffic analysis and implementing robust cloud solutions. A collaborative problem-solver, adept at aligning technical strategies with business goals to enhance operational efficiency and ensure high availability.
Overview
6
6
years of professional experience
Work History
Senior Network Engineer
PepsiCo
Chicago, USA
01.2025 - Current
- I am developing and implementing automation tools, scripts, and workflows to streamline network operations, enhance efficiency, and minimize manual interventions.
- Maintaining accurate and up-to-date documentation of network configurations, procedures, and incidents to ensure clear communication across teams.
- PepsiCo, Inc. is an American multinational food, snack, and beverage corporation.
- Design, implement, and maintain network infrastructure for PepsiCo's data centres and remote sites to ensure high availability, scalability, and security.
- Manage and troubleshoot routers, switches, firewalls, and load balancers to optimize network performance and support internal and external applications.
- Configure and maintain VLANs, VPNs, MPLS, and IPSec for secure and efficient communication across multiple networks.
- Implement and manage network security policies and firewall rules to protect against unauthorized access and mitigate cyber threats.
- Collaborate with vendors and service providers for issue resolution.
- Design and deploy scalable, secure, and high-performance network solutions for PepsiCo's global infrastructure.
- Implement LAN, WAN, WLAN, and SD-WAN solutions to support business operations.
- Use tools like Cisco DNA Center, Juniper Mist, or Aruba Central for network automation and management.
- Monitor network performance using tools like SolarWinds, PRTG, or Nagios.
- Analyze network traffic and optimize performance using Wireshark, NetFlow, or Riverbed SteelCentral.
- Ensure minimal downtime and high availability for critical business applications.
- Diagnose and resolve network issues using tools like Ping, Traceroute, and Cisco Prime Infrastructure.
- Provide Level 2/3 support for network-related incidents and outages.
- Implement and manage network security solutions like firewalls (Palo Alto, Cisco ASA), VPNs, and intrusion detection/prevention systems (IDS/IPS).
- Conduct regular security audits and vulnerability assessments using tools like Nessus or Qualys.
- Ensure compliance with PepsiCo's security policies and industry standards (e.g., ISO 27001, GDPR).
- Manage and optimize cloud networking solutions (AWS) using tools like AWS VPC.
- Integrate on-premises networks with cloud environments for seamless operations.
- Automate repetitive network tasks using scripting languages like Python or tools like Ansible, Puppet, or Chef.
- Leverage Cisco DNA Center or Juniper Apstra for intent-based networking and automation.
- Maintain detailed network documentation using tools like Microsoft Visio or Lucidchart.
- Generate reports on network performance, security, and capacity planning using SolarWinds or Splunk.
- Work with cross-functional teams (IT, security, operations) to align network infrastructure with business goals.
- Communicate technical concepts to non-technical stakeholders effectively.
Network Engineer
Northern Trust Corporation
Chicago, USA
03.2024 - 12.2024
- My role is to designed and managed network security platforms, including VPN implementations and architectural enhancements.
- Defined standards and managed the technical lifecycle of network products, including upgrades and migrations.
- Northern Trust Corporation is an American financial services company.
- Led the design and implementation of wide area networks (WAN) and local area networks (LAN), enhancing connectivity between remote sites and headquarters.
- Monitored and resolved network performance issues, identifying bottlenecks and recommending solutions to improve efficiency.
- Ensured seamless integration of IoT devices used in the production floor, supporting real-time data collection and analysis.
- Worked closely with IT security teams to implement VPNs and secure access protocols across all manufacturing units.
- 24x7 on-call escalation support as part of the security operations team.
- Configured and managed Cisco access layer routers and switches.
- Responsible for service request tickets generated by the helpdesk such as troubleshooting, maintenance, upgrades, patches and fixes with all around technical support.
- Key contributions include troubleshooting of complex LAN /WAN/WLAN infrastructure that includes routing protocols EIGRP.
- Supporting EIGRP and BGP for problems of L2/L3 in internal teams external customers.
- Responsible for implementing, engineering, level 2 support of existing network technologies / services integration of new network technologies / services.
- Extensive experience in configuring and implementing EIGRP, OSPF and BGP.
- Experience in installation, configuration and administration of application Sun Solaris on Window OS System.
- Working closely with Data center management to analyze the data center sites for cabling requirements of various network equipment.
- Supported core network consisting of Cisco 7200 series routers running multi area OSPF.
- Performed network administration tasks such as creation and management of VLANS, Port security, Trunking, RPVST, Inter- VLAN routing, and LAN security.
- Configured FWSM on Cisco 7600 router to reduce costs and operational complexity while enabling organization to manage multiple firewalls from the same management platform.
- Configured Hyper-V LAN which decouples virtual networks from the physical network infrastructure, removing the constraints of VLAN and hierarchical IP address assignment from virtual machine provisioning.
- Worked with ASA Firewall configuration and Participated in Migration of PIX to ASA for hardware devices.
- Knowledge in implementing and configuring F5 Big-IP LTM-6400 load balancers.
- Configured ASA 5520/5500 to ensure high-end security on the network with ACLs and Firewall.
- Worked with Cisco Catalyst 4500, 4900 switches and Cisco 2800, 3600, 3800, 7200 7600 series Routers.
- Involved in Network Designing, Routing, DNS, IP Subnetting, TCP/IP protocol.
- Deployed Nexus 2000, 5000 and 7000 series switches.
- Worked on commissioning and decommissioning of the MPLS circuits for various field offices POPs.
Network Engineer
AstraZeneca
Chennai, India
06.2020 - 11.2022
- I managed and configured network devices, including Cisco routers, switches (Catalyst and Nexus series), firewalls (ASA, Check Point), load balancers (Netscaler), and cloud-based proxies like Zscaler, to maintain a secure and efficient network environment.
- AstraZeneca plc is a British-Swedish multinational pharmaceutical and biotechnology company.
- Integrated IoT devices into the corporate network for real-time data monitoring and operational efficiency in smart office environments.
- Managed the implementation of VoIP solutions across all offices, leveraging Cisco Unified Communications Manager to support seamless communication.
- Employed IPSec tunnelling to secure data traffic between branch offices and central data centres, ensuring encrypted communication over public networks.
- Managed the firmware updates and patch management of network devices to ensure the latest security features and functionality.
- Led the integration of disaster recovery solutions, leveraging cloud-based backups and replication technologies to ensure quick recovery in case of network failure.
- Performed professional level documentation using Visio diagrams.
- Configuring BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks.
- Experience in designing MPLS VPN and QoS for architecture using Cisco multi-layer switches.
- Effective team player with an aptitude to learn and ability to prioritize, organize and accomplish multiple tasks, both as part of a team and independently.
- Excellent customer management/resolution, problem solving and debugging skills with good verbal/written communications and presentation skills.
- Expertise in maintenance of layer2 switching tasks which advocate VLAN, VTP, STP, RSTP, PVST, RPVST, configuring of ether channel with LACP and PAGP along with troubleshooting of inter-VLAN routing.
Education
Masters - Information Studies
Trine University
Michigan, USA12.2024
Skills
Network protocols and routing
- LAN/WAN management
- Cisco and FortiGate expertise
- Cloud services (AWS, Azure, Google)
- Network security (IPSec, SSL)
- Traffic analysis (Wireshark, NetFlow)
- Wireless networking (80211ac, 80211ax)
- VoIP and SIP configurations
- Infrastructure as code (Terraform, Ansible)
- Monitoring tools (SolarWinds, PRTG)
- Version control (Git)
- Virtualization technologies (VMware NSX)
- Load balancing (F5, Citrix)
- Active Directory management
- DDoS mitigation strategies
- Network performance optimization
Timeline
Senior Network Engineer
PepsiCo
01.2025 - Current
Network Engineer
Northern Trust Corporation
03.2024 - 12.2024
Network Engineer
AstraZeneca
06.2020 - 11.2022
Masters - Information Studies
Trine University