Nagarjun Krishnan Email & Phone Number

Lehi, Ut, Us

Lehi, Ut, Us

Boston, Ma, Us

• Spawn, automate and manage Virtual Machines (Windows & Linux Servers) at scale in AWS as well as on private data centers for technology delivery and instrumentation workflows.• Configure & troubleshoot multiple levels of network infrastructure including VPN, firewalls, routers/switches, load balancers to enable unicast and multicast communication.• Scale various instances using Salt, Docker, Terraform, Packer in Amazon Web Services.• Built an automated application CI/CD pipeline for Windows, Linux and Mac environments using Jenkins, Shell, Powershell, Python, AWS (EC2, SQS/SNS, S3) and GoLang.• Created Automation API interface for partner event creation using Celery, Flask, nginx and Djano framework.• Built an Automated Testing Framework for unit tests and BDD based tests using Python, behave, cucumber, godog and Go. • Knowledge expert on various adaptive bitrate streaming technologies like HLS, Smooth Streaming and MPEG-DASH• Monitor and maintain high-availability of platforms for our stakeholders using Zabbix, Ichinga and CloudWatch.• Created Automated code signing pipeline using Azure Key vault and AWS Services.• Created a hybrid Active directory environment for WiFi and VPN auth using Azure AD and On-Premise AD for unified password management.• Introduce modern best-practices for cloud infrastructure to improve efficiency and reduce cost of cloud hosting & application platforms.• Centralize aggregation of application logging, including: log shipping and exploration tools using elastic search, logstash & kibana.• Participate in architectural, code, security and performance review for release readiness.

New York, Us

• Configured Active Directory domain users, DFS, Mac High Sierra and pushed GPO’s into domain computers.• Maintaining and managing AD servers, SQL servers, Veeam , Office 365, IIS servers, Hyper-V failover cluster management and DNS.• Developed Powershell scripts to automate mundane tasks like Managing AD users, Backing up SQL databases and One drive management.• Developed web- based applications with IAM for logging and reporting using HTML, CSS, PHP and MySQL databases.• Worked with SCCM and MobileIron configuration management for administration of Desktops and Mobile devices.• Deployed PA-200 (Pan-OS) with virtualized servers, User groups, DMZ servers, Data servers and Clients in different modes including Tap, Layer 2, Virtual Wire and Layer 3 mode to fully understand the Initial configuration and Firewall setup.• Configured User Profiles, Firewall rules, and Security Policies based on App-ID, User-ID, Content-ID including URL filtering, Anti-virus and Anti-spyware implementation.• Managing and Automating AWS, Configuration management for 100 equipment including Servers, NAS and Workstations.• Managing and Maintaining Barracuda Message Archiver, QNAP NAS, SQL/MySQL Server, and HTML/CSS websites.

• Deployed and Maintained GRE tunnels, SSL, Site-to-Site IPSEC VPN and Remote Access VPN’s on Cisco routers and ASA firewalls using both Cisco Configuration Professional and Command Line interface.• Implemented NAT and Access Control List based on Security Policies.• Administered and Maintained Multiple Firewalls on a day to day basis.• Monitoring network traffic, network activity, and network usage to ensure continued integrity.

In

• Configured Network access control policies across Cisco Routers, switches and Firewalls using Cisco Configuration Professional. • Set up different account username and passwords for specific users with authorization to access networks.• Established network connectivity using OSPF and EIGRP routing protocols.• Analyzed traffic flows and troubleshot various connectivity failures and issues using Wireshark.• Managed and gained experience working with Cisco 3750, 4948,6500,7200 series switches.• Monitored and Generated reports on network maintenance and usage.

Master’S Degree, Electrical And Electronics Engineering

Bachelor’S Degree, Electrical, Electronics And Communications Engineering