Rufus Arulrajah
Joliet,IL
Summary
Dedicated and seasoned Network Services Manager with over 12 years of experience in network administration and 4 years of successful management background. Adept at designing, implementing, and maintaining secure network environments while leading and mentoring a team of Network Engineers. Expertise lies in Physical and Virtual Switching/Routing, standard network protocols, dynamic routing, and branch, cloud, and datacenter connectivity. Proven track record in Data Center & Cloud environments, particularly with Azure. Highly skilled in utilizing Safe Agile Methodology, ensuring streamlined operations and project execution.
Overview
18
18
years of professional experience
1
1
Certificate
Work History
Network Manager
TATA Consultancy Services
05.2022 - Current
- Demonstrate expertise in assessing, planning, and implementing the network infrastructure, including LAN, WAN, DMZ, and Datacenter. Ensure seamless business continuity and maximum uptime.
- Handled Layer 3 technologies, including IPv4, IPv6, BGP, OSPF, and more, applying technical knowledge to deliver efficient and reliable enterprise networking solutions.
- Monitored network system state using SNMP, Sampled Flow/Netflow, and Telemetry, ensuring compliance with capacity plan guidelines and budget constraints.
- Lead and mentor network team, fostering collaborative and motivated environment. Provide guidance and support to team members to achieve organizational objectives.
- Take charge of initiatives to manage and enhance the overall health of the network infrastructure. Collaborate with cross-functional teams to drive projects aligned with business needs and objectives on campus and remote sites.
- Collaborate with organizational leadership to enhance existing processes and develop new workflows, optimizing overall network infrastructure and user experience.
- Possess an excellent understanding of routing, switching, firewalls, and wireless technologies. Utilize this knowledge to implement robust network solutions that elevate user experience.
- Continuously improve and expand the Network Services portfolio, ensuring cutting-edge solutions and staying ahead of industry trends.
- Collaborate with network hardware and service providers/vendors to ensure efficient and effective network services.
- Implement and oversee network security protocols and best practices to protect against cyber threats and maintain data integrity.
- Maintain accurate network documentation and schematics for easy reference and troubleshooting.
- Collaborate with cross-functional teams, including Sales, Engineering, and Operations, to craft detailed and comprehensive SOWs tailored to meet clients' specific requirements and objectives.
- Lead the preparation and compilation of project proposals, ensuring accuracy, coherence, and alignment with clients' expectations and industry best practices.
- Interact directly with clients to understand their network needs, concerns, and objectives, translating them into well-defined SOWs and project proposals that deliver exceptional value.
Lead Network Engineer
TATA Consultancy Services
Chicago, IL
01.2020 - 05.2022
- Working with IT Cloud and Infrastructure Solutions, focused on enhancing customer experience and optimizing business operations by leveraging IT Solutions, Automation. Managing customer relationships across towers with ownership of Revenue Growth, Delivery Excellence, and Service Transformation.
- Collaborated closely with the NOC to optimize network operations, ensuring resource availability for projects and process enhancement.
- Worked in tandem with the Service Management team to maintain accurate device and location inventory in the CMDB and manage major incidents effectively.
- Manage, implement and monitor strategic, comprehensive corporate information security monitoring and operation program to ensure the integrity, confidentiality, and availability of information owned, controlled, or processed by the organization.
- Lead Network Engineer with support team providing IT infrastructure services to Nation's leading competitive energy provider, with one of largest electricity generation portfolios and retail customer bases in the country.
- Configured and manage Azure VPN gateway and established Site-to-Site connectivity, Express Route with On-Premise Networks, and Azure
- Configured Network Security Groups for Subnet and NIC level for Azure Virtual Machines
- Setting up and Managing Azure Network Security with NSG (Network Security Group) and Endpoint ACLS.
- Managing information/cybersecurity, infrastructure vulnerabilities, and network security products (hardware and software)
- Work and manage the fast-paced highly collaborative team and resolve network failures, security attacks, outages, etc. Perform activities, such as remote support, configuration, and maintenance of network/security solutions.
- Leverages machine learning and AI (artificial intelligence) to build software solutions with ignio™, it is cognitive automation software that helps automation Network Devices Patching in the current environment.
- Recommended network security standards and upgrades to management.
- Provided network support services for devices such ASA Firewalls, Next-Generation Firewalls, Switches routers, and other hardware.
- Deployed, implemented, configured, and managed Cisco FWSM and ASA Firewalls, Cisco IDS/IPS, Cisco ISE, Wireless Controllers/APs, and Cisco Meraki Cloud Wireless Security on high volume critical production environment.
- Installation, programming, and troubleshooting of Cisco ACI, Cisco SD-Access, and Cisco SD-WAN, APIC, DNA Center, Prime, ISE, and CDO management platforms.
- Change control management, coordination and process improvements between infrastructure and development/application management units
Network Engineer
GuavaTech
Chicago, IL
08.2017 - 12.2017
- Security infrastructure, including IDS/IPS and vulnerability management using QUALYS/ Tenable and facilitate client security reviews
- Use of Qualys produce actionable vulnerability data reports and working on industry standards regarding vulnerability management including Common Vulnerabilities and Exposures (CVE), Common Vulnerability Scoring System (CVSS)
- Provides Level 3 support and direction for production and deployment related issues
- Managing different load balancing options & features to include Persistence, SSL offload functions, profiles, etc
- Cisco ASA, PIX Firewalls (Cisco ASA 5585-X, 5555-X, 5516-X, 5515-X, 5506-X, 5505-X)
Consultant
Balanita/ GoSetUp Pvt Ltd
Chicago, Colombo and London
04.2012 - 08.2017
- Worked in many projects across UK, USA and Sri Lanka including at GuavaTech, Chicago, IL and Chicago Tribune,
- Network and Network Security (United Kingdom and Colombo, Sri Lanka), Formulation, Management and Maintenance of the IT Security policy for the project
- Management of infrastructure security for the project and for Cisco network devices
- Set up, tested and configured networks, desktops, laptops and printers to conform to Windows operating system
- Created documentation for installing all software
- Designed, implemented and maintained
- Performed network documentation and created disaster recovery plan
- Risk and Incident management for the assigned project
- Participated in forensic recovery and analysis
- Assisted in incident response and recommend corrective actions
- Design and implement corporate solutions for email, internet, virus protection, disaster recovery, data storage and backup, system and bandwidth monitoring
- Worked on different networking concept and routing protocols like BGP, EIGRP, OSPF and other technologies
Network Engineer
Tata Consultancy Services
Newark, NJ
12.2017 - 12.2020
- Managed Services practice which provides monitoring and remote/on-site technical support services for one of the largest Electric and Gas company
- Network Operations Engineer with support team responsible for providing quick resolution to client issues within strict SLA's
- The NOC services include 24/7 monitoring, ticket triage and remediation, escalation, remote and on-site support
- Working with IT Product teams and other IT areas as appropriate throughout the development, testing and implementation life cycle, including participation in troubleshooting of production issues
- Managing and supporting F5 LTM (Local Traffic Manager) Virtual Servers iRules Pools & Server Nodes
- Implementing/ Managing Cloud ELBs and F5 Load balancers including LTMs and GTMs
- Supports IPsec and SSL-based VPNs including support for clientless SSL VPN and full AnyConnect SSL VPN tunnels
- Supports deployments in infrastructures in AWS/ Azure cloud platforms
- Support Azure Load Balances and NSGs
- Security infrastructure, including IDS/IPS and vulnerability management using QUALYS/ Tenable and facilitate client security reviews.
- Use of 3rd party tools (Qualys and ect ) produce actionable vulnerability data reports and working on industry standards regarding vulnerability management including Common Vulnerabilities and Exposures (CVE), Common Vulnerability Scoring System (CVSS)
- Improve Firewall Performance & Security by Removing Unused Firewall Rules with FireMon
- Implementation and troubleshooting DLP tools (Forcepoint)
- Analyzing vulnerability scan results, system audits, and log events with Tenable security scan tool
- Monitored data transfer security to detect and prevent intrusion attempts and respond to DDoS attacks.
- Initiated and managed network test facilities to verify network hardness and resilience.
IT Engineer
Titansoft Lanka (Pvt) Ltd
Colombo
01.2008 - 02.2010
- Participated in creation of Systems Operations Centre for the company, which maintained hundreds of systems and applications for online gaming which connected through live casino environment
- Responsibilities included end-user troubleshooting
- Document creation, and system design
- Acted as Intranet webmaster and helped create and administer
- Security policies
- Oversaw initial system analysis, assessing needs and resolving any issues related to various application design and development
- Participated in Business and System Requirements project planning sessions with Business Systems Analyst and Software Developers
- Provided design and implementation of LANS/WANs, Fileservers and Workstations
- Worked closely with end-users to analyze current software/hardware requirements, and presented programs/hardware to satisfy that need
- Managed, supported, and maintained network systems
- Experience with monitoring tools including Wireshark, Microsoft Network Monitor, Cisco Network Assistant and Solar Winds
Customer Service Executive
HSBC
02.2006 - 11.2007
- Run and deliver customer operations.
- Managing the day-to-day transactions of our Retail Banking and Wealth Management business.
- Running operations for our Commercial Banking business and supporting our Global Private Banking and Global Banking and Markets businesses to serve customers across their global networks.
Education
BSc (Hons) Computer Networking -
London Metropolitan University
London, UK2010
Skills
- Network Design and Architecture: Proficient in analyzing network and security requirements and designing enterprise-level network plans with available and resilient designs
- Network Hardware Expertise: Experience with network hardware from Cisco, and F5, including installation, upgrading, and maintenance
- Network Protocols: In-depth knowledge of Layer 3 technologies, such as BGP, EIGRP, OSPF, IPv4, IPv6, HSRP, and VRRP
- Enterprise Networking Solutions: Familiarity with enterprise-level networking solutions, including MPLS/BGP, routing, switching, NFV/SDN, EVPN VXLAN, and SD-WAN technologies
- Network Monitoring and Management: Proficiency in using tools like SNMP, Sampled Flow/Netflow, and Telemetry for network system state monitoring and capacity planning
- Network Authentication Systems: Experience with network authentication systems like TACACSAutomation: Strong understanding of automation principles and experience leveraging automation tools for network management and operations
Technical Skills:
- People Management: Demonstrated ability to lead and manage teams, providing direction, training, and guidance in a fast-paced environment
- Project Management: Able to oversee complex network or security projects, including design, deployment, monitoring, incident management, and problem resolution
- Collaboration: Strong collaboration and communication skills to work effectively with cross-functional teams, IT staff, and business personnel
- Problem-Solving: Effective problem-solving abilities, especially in complex incident management and troubleshooting scenarios
- Cultural Fit: Alignment with the organization's culture and values
Leadership and Management Skills:
Soft Skills:
Certification
- Cisco Certified Specialist - Security Core, 2022
- Cisco Certified Network Professional Security (CCNP Security), 2022
- Oracle Cloud Infrastructure Foundations 2021 Associate
- CCNA Security, 2019
- CCNA Routing and Switching, 2017
- CCNA Security, 2010
- Microsoft Specialist - Windows 7, Configuring, 2009
- MCTS- Windows Server 2008 Network Infrastructure, Configuration, 2009
- MCTS- Server 2008 Applications Infrastructure, Configuration, 2009
- MCTS - Windows Server 2008 Network Infrastructure, Configuration, 2009
- CCNA (Cisco Certified Network Associate), 2007
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Timeline
Network Manager
TATA Consultancy Services
05.2022 - Current
Lead Network Engineer
TATA Consultancy Services
01.2020 - 05.2022
Network Engineer
Tata Consultancy Services
12.2017 - 12.2020
Network Engineer
GuavaTech
08.2017 - 12.2017
Consultant
Balanita/ GoSetUp Pvt Ltd
04.2012 - 08.2017
IT Engineer
Titansoft Lanka (Pvt) Ltd
01.2008 - 02.2010
Customer Service Executive
HSBC
02.2006 - 11.2007
BSc (Hons) Computer Networking -
London Metropolitan University
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