Dakshinamurthy Ranganathan
Bettystown
Summary
Cybersecurity and Cloud Security Specialist with over 10 years of experience in securing complex network infrastructures within cloud and on-premise environments. Proven expertise in formulating and executing comprehensive security strategies, vulnerability management, and compliance. Known for exceptional leadership in cross-regional teams and a deep understanding of identity and access management solutions. Eager to apply cybersecurity skills in a dynamic and challenging setting.
Overview
12
12
years of professional experience
1
1
Certification
Work History
Senior Network and Security Engineer
McAfee
Cork
11.2022 - Current
- Designing, Implementing and Deploying secure connectivity between On-premises and various cloud platforms (AWS, GCP and Azure)
- Led Business Continuity Programme and Disaster recovery efforts for the Engineering and Infrastructure team at McAfee
- Configuring, Deploying and Managing Identity Service Engine (Cisco ISE) and Identity Access Management Solutions (AWS, OKTA)
- Led comprehensive security assessments and vulnerability analyses across cloud and on-premise networks, identifying critical risks and formulating strategic remediation measures that enhanced overall security posture
- Creating and Maintaining documentation, architecture diagrams, PCI audit, troubleshooting procedure and Security measures.
Senior Cloud Network Engineer
Yapstone
Drogheda
01.2022 - 10.2022
- Design, implement and manage high availability AWS cloud solutions
- Responsible for public cloud security including explicit routing, VPC segmentation, Identity and access management, Zero-Trust principles, Network ACL’s, Security groups, Load and Application Balancers
- Collaborating with technical leadership, multivendor product teams to develop cloud solutions to meet business goals for performance, stability and cost-efficiency
- Leading efforts for PCI,ISO 27001 and 27701 audits with internal and external vendors.
Senior Network Engineer
Merck
Cork
08.2020 - 12.2021
- Planned, designed and implemented Local area network (LAN), Wide area Network (WAN) and wireless networks (WIFI) across EMEA
- Led migration from HP to Cisco for LAN environment and Cisco to Aruba in Wireless domain
- Created SDWAN profiles, deploying templates, configuring overlay and underlay tunnels and, WAN optimization in silver peak
- Involved in AWS and Azure Cloud migrations, troubleshooting VPN issues and setting up connectivity between On-premises and cloud.
Network Engineer
Prometric
Dundalk
12.2017 - 07.2020
- Designed and implemented DMVPN solutions across 15+ Prometric offices in EMEA and Asia/APAC
- Subject matter expert in network performance monitoring applications, optimizing WAN and VPN solutions
- Successfully migrated 500+ test sites from Juniper SSG5 environment to Cisco Meraki
- Performed firmware upgrade in Network devices such as Nexus9k, 7k, ASR-1001-X, ASA5525,5555, FTD 4110, Firepower module, FXOS, ISR4331 and Catalyst 3850.
Network Administrator
Cognizant
Bangalore
09.2012 - 07.2016
- Administrated, supported and monitored LAN and WAN environments
- Configured QoS and NetFlow in more than 1000+ devices as part of WAN and LAN optimization
- Subject matter expert in network performance monitoring applications, optimizing WAN and VPN solutions
- Deploying agents in Linux and Windows systems for performance and availability monitoring solutions.
Education
Masters in Information and Network Security -
University of Limerick
Masters in Sports Performance -
University of Limerick
Skills
- Cybersecurity tools - Ipsec VPN ,Firewalls, FMC/FTD, DLP,IDS/IPS,SIEM (Sentinel),Vulnerability management and Compliance Frameworks ( PCI DSS, ISO 27001)
- Cloud Technologies - AWS, GCP, Azure ,Cisco SDWAN and Meraki
- Documentation and Collaboration - Lucidscale, Microsoft Visio, Confluence and Notepad
- Monitoring - Solarwinds, Salesforce, BMC Patrol, Cisco Prime, BMC Entuity, Splunk
- Identity Access Management Solutions- Okta, Radius, TACACS, DUO, AWS IAM
- Networking - TCP/IP, 8021Q,OSPF/IS-IS, BGP, MPLS, ACLs, IPSEC, DNS
Certification
- CISSP
- AWS Solutions Architect
- CCNP
- CCNA
- ITIL V3
- NSE 2
Extra Achievements
- Level 2 Qualified ECB coach
- Stage 2 Umpire Certified
- Current Cricket Player in Leinster Cricket Union.
References
Available Upon Request
Timeline
Senior Network and Security Engineer
McAfee
11.2022 - Current
Senior Cloud Network Engineer
Yapstone
01.2022 - 10.2022
Senior Network Engineer
Merck
08.2020 - 12.2021
Network Engineer
Prometric
12.2017 - 07.2020
Network Administrator
Cognizant
09.2012 - 07.2016
Masters in Information and Network Security -
University of Limerick
Masters in Sports Performance -
University of Limerick
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