Hari Sharma

Experience

• 

  CareTech Solutions

  Mar 2016 - Sept 2018

  Network Engineer (SDA)

  Key Accomplishments:• Raised network performance via expert troubleshooting, BGP/OSPF maintenance and efficient management of VPN and SD-WAN.• Spearheaded impactful hardware upgrades and license management initiatives, resulting in optimized performance, compliance, and cost-effectiveness for the enterprise. • Demonstrated an exceptional understanding of virtualization technology while leveraging VMware to improve resource utilization and scalability within the network environment.• Managed important components, such as PBX, Hubs, Repeaters, and Patch Panels, ensured their seamless operation, and contributed to a resilient and high-performing network. • Employed Wireshark for network analysis, augmented troubleshooting efforts, and maintained the integrity of the network. Show less

• 

  LAN/WAN Pro

  Oct 2018 - Apr 2019

  Network Engineer

  Key Accomplishments:• Oversaw the integration of an IPsec Site-to-Site VPN while seamlessly linking the Cisco ASA5505 in a remote office with the fortified Cisco 1841 ISR at the central hub.• Executed configurations for self-signed certificate generation, established a versatile RSA key-pair for certificate authority identification, and integrated CA trust points with self-enrollment for SSLVPN.• Controlled VLANs and VXLANs using NX-OS while developing virtual and adaptable subnets that surpassed the capabilities of previous-generation switches.• Configured e/iBGP peering with finesse while using direct connections, loopbacks, OSPF, eBGP-Multi-hop, and Route Reflectors; provided comprehensive routing information with surgical precision by using diagnostic commands to monitor BGP events.• Employed Nagios XI with a customized dashboard, SolarWinds Orion NPM, and CACTI for vigilant monitoring and insightful graphing of network traffic. Show less

• 

  Meridian

  May 2019 - Aug 2019

  Network Engineer

  Key Accomplishments:• Orchestrated the monitoring, analysis, and swift triage of security events from the SIEM and various security tools, resulting in timely identification and response to security incidents.• Investigated and responded to security incidents, provided detailed analyses and actionable recommendations for mitigation, and contributed to a more resilient security posture.• Showed active involvement in the management of various Well Care/Meridian integration projects as well as achieved successful project outcomes.• Executed intricate configurations on switches, optimized IP addressing, VLAN setup, Ether Channel configurations, and dynamic ISL trunking and raised network efficiency.• Formulated and implemented tailored SIEM use cases, rules, reports, and dashboards while enhancing the precision and effectiveness of the security monitoring system.• Conducted assessments of the environment, aligned defensive strategies with evolving attacker tactics, techniques, and procedures, and ensured an anticipatory approach to cybersecurity. Show less

• 

  Adient

  Aug 2019 - Aug 2021

  Network Engineer

  Key Accomplishments:• Steered collaborative efforts within the IT team to assess and implement CIS benchmarks while ensuring an unyielding commitment to defined standards and elevating the overall robustness of system security.• Innovated data-driven insights by identifying, monitoring, and presenting critical data points through daily dashboards, metrics, and reports; that initiative played a pivotal role in increasing the organization's situational awareness of cybersecurity.• Utilized advanced tools and processes to perform internal assessments while uncovering potential compliance issues, identifying compensating controls, and pinpointing areas for improvement.• Drove compliance efforts by supporting audits and addressing identified gaps, resulting in a strengthened alignment with industry standards and best practices. Show less

• 

  SAF-HOLLAND Inc.

  Aug 2021 - May 2022

  Network Engineer

  Key Accomplishments:• Led the implementation of EIGRP MD5 across sites, solidified the domain against unauthorized route insertions, and significantly strengthened network integrity.• Created manual EIGRP route summarization and optimized CPU resources, memory, and bandwidth usage for routing table maintenance, resulting in a substantial boost to overall network efficiency.• Configured and resolved complexities within Spanning-Tree Protocol, including PVST+, MST, and Port Fast while minimizing potential disruptions and improving network stability.• Evaluated and promptly addressed recommendations or alerts from internal security tools and the Managed Security Services Provider, resulting in heightened threat responsiveness and effective mitigation.• Developed and maintained security incident playbooks, assured a standardized and efficient response to potential security threats, and reinforced overall incident response capabilities. Show less

• 

  KDDI America, Inc.

  Jun 2022 - Mar 2023

  Network Engineer

  Key Accomplishments:• Engineered robust site-to-site, VPN, DMVPN, and SSL VPN setups using the CISCO AnyConnect VPN client while fortifying secure communication channels. • Directed the initiation of ISE while mastering the GUI and leveraging system certificates to transform ISE into a dynamic Network Access Policy Engine.• Defined impactful metrics reflecting the health and status of the company’s Information Security Governance, Risk, and Compliance activities and communicated effectively to Senior Leadership. • Implemented and improved CISCO ISE compliance services, client posture services, client provisioning, BYOD services, and the My Devices portal, with a focus on integrating certificates within BYOD scenarios.• Partnered with risk teams, recognized critical gaps, and drove the evolution of security measures.• Innovated and refined processes and technologies as well as bolstered containment, mitigation, and recovery capabilities. Show less

• 

  Trinity Health

  Apr 2023 - now

  Senior Network/Security Analyst

  Key Accomplishments:• Orchestrated seamless configuration and troubleshooting of routers, switches, firewalls, IDS/IPS, and anti-malware software while ensuring uninterrupted operational excellence.• Executed meticulous system performance analyses, pinpointed potential security vulnerabilities like access control table failures and corrupted data, and contributed to a fortified defense.• Interpreted and applied Company strategies, policies, and external laws to develop visionary security functional requirements, including mandatory encryption for Privacy Act data on shared servers.• Spearheaded end-to-end procurement, configuration, deployment, and maintenance of security infrastructure as well as established seamless collaboration with vendors and consistently monitored peak performance.• Played integral role in crafting Trinity Health's disaster recovery plan and secured the company's resilience in emergency scenarios.• Mastered an array of advanced security analysis tools, including Wireshark, Nmap, Kali Linux, Burp Suite, THC-Hydra, Netcat, OWASP Zed Attack Proxy, Show less