Kafka & Cloud Systems Administrator (Azure/AWS)

Narayana C K

Kafka Administrator/

Azure/AWS Admin

Address:

**** ********* ****

APT# 201

Buffalo grove, IL-60089

Email: **.*******@*****.***

Phone: 309-***-****

AWS Certified Sysops Administrator

Associate

https://www.credly.com/users/killada-narayana-charyulu

Validation Number: KBPCPGHBCMBE1GGJ

Work Status: Permanent Resident

SUMMARY

Seasoned IT professional with over 25+ years of experience in cloud computing, specializing in Azure and AWS solutions, and proficient in managing large-scale data pipelines using Kafka. Managed and optimized Azure and AWS cloud infrastructures for diverse clients, ensuring high availability and scalability. Implemented and maintained robust data solutions using Kafka, resulting in improved data processing efficiency.

Azure:

Virtual Machines (VMs): Proficient in creating and managing Azure VMs, ensuring optimal performance and scalability.

Resource Groups: Experienced in organizing and managing resources within Azure using resource groups.

Networking: Skilled in configuring Virtual Networks (VNETs) and Subnets, creating Private Link Endpoints (PLEs), and setting up Private DNS Zones.

Kubernetes: Expertise in deploying and managing Azure Kubernetes Service (AKS) clusters, including configuring internal and external load balancers and creating load balancer rules.

Security: Proficient in configuring security groups to ensure secure access and communication between resources.

Database Management: Experienced in managing MySQL databases within Azure.

Log Analysis: Skilled in analyzing logs using Kusto Query Language (KQL) to monitor and troubleshoot Azure resources.

Data bricks:

oExperience in

Azure Databricks workspaces

ETL Pipelines

Integration with kafka, AEH and ADSL Gen2

Load Balancers:

oManaged Azure Standard Load Balancers with optimized rules, health probes, and backend pools for highavailability workloads.

oIntegrated load balancers with VM Scale Sets and AKS nodes to support seamless scaling and resilient application delivery.

oConfigured internal and external load balancers to secure and streamline northsouth and eastwest traffic flows.

oDiagnosed and resolved connectivity, probe failures, and routing issues using Network Watcher and NSG flow logs.

o

Kafka:

Installation and Configuration: Proficient in installing and configuring Confluent Kafka on Azure VMs and Azure Kubernetes Service (AKS), ensuring optimal performance and scalability.

Support and Maintenance: Hands-on experience in managing Confluent Kafka environments, including handling support requests, disk resizing in production environments, cluster rebalancing, and managing replication and out-of-sync replicas.

Cluster Management: Expertise in performing cluster upgrades for production and non-production clusters, disk downsizing, and configuring consumer lag application alerts.

Security and Access: Skilled in configuring internet user access to Kafka clusters and managing authentication and authorization issues.

Connectors: Extensive experience with Kafka connectors, including Snowflake DB sink connectors, Kafka connect replicators, and CDC Debezium connectors.

Troubleshooting: Proficient in troubleshooting various issues, including authentication, authorization, client onboarding, publisher and consumer applications, and schema and kSQLDB issues.

Monitoring and Alerting: Experienced in using monitoring tools such as Prometheus, Grafana, and Tview to monitor Kafka environments and ensure system health and performance.

AWS:

Infrastructure Setup: Strong experience in setting up enterprise infrastructure on AWS, including EC2 instances, Elastic Load Balancers (ELB), Elastic Block Store (EBS), S3, Security Groups, Auto Scaling, RDS, IAM, CloudFormation, CloudFront, and VPC services.

Terraform: Proficient in using Terraform for infrastructure management, including writing Terraform scripts to set up AWS resources such as EKS, VPC, EC2, RDS, AMI, Redshift clusters, and ELB, and automating deployment and infrastructure.

Security: Extensive knowledge and experience with AWS IAM security policies and roles, including designing roles and creating users/groups, and managing security using Security Groups and IAM policies.

DevOps Tools: Experience in working with DevOps Configuration Management tools like Ansible, and proficient in Cloud automation using AWS CloudFormation, Terraform, and Ansible (IaC).

Rest api

oUsing postman to

Publish to kafka topics

Consume from topics

Deploy connectors

Deploy replicators

Create ACLs (IAM)

Networking: Configured Virtual Private Cloud (VPC), private subnets, public subnets, and deployed AWS resources in VPC.

Serverless: Extensive experience with AWS Lambda, running scripts and code snippets in response to events occurring in AWS Cloud, and maintaining serverless applications.

Instance Management: Expertise in working with multiple AWS instances, setting up security groups, Elastic Load Balancers, and AMIs, and creating snapshots and AMIs of instances for backup and cloning.

Cost Optimization: Strong experience in AWS cost optimization, identifying high spending resources, and implementing cost-saving measures.

Ansible:

Experience server setup, software deployment, and fault-tolerant updates.

Automation and Orchestration: Hands-on experience in automating and orchestrating complex workflows using Ansible Tower, incorporating access control and generating automated workflows to streamline deployment processes.

Playbooks and Modules: Skilled in creating and managing Ansible playbooks, utilizing various modules, handlers, and roles to ensure efficient and reliable configuration management.

Infrastructure as Code (IaC): Expertise in implementing Infrastructure as Code (IaC) principles using Ansible, enabling consistent and repeatable infrastructure deployments.

Integration with CI/CD: Experience in integrating Ansible with Continuous Integration and Continuous Deployment (CI/CD) pipelines to automate the deployment and delivery of applications and infrastructure.

DevOps:

CI/CD Pipelines: Expertise in setting up Continuous Integration and Continuous Deployment (CI/CD) pipelines for various applications and Docker containers using tools such as Jenkins and AWS CodePipeline, ensuring seamless and automated deployment processes.

Version Control: Proficient in administering version control tools such as Git, including branching, merging, rebasing, and resolving conflicts during merges, to maintain a clean and efficient codebase.

Configuration Management: Skilled in managing the software configuration management process, including code compilation, packaging, deployment, release methodology, and application configuration, to ensure consistent and reliable software delivery.

Agile Tools: Experienced in using JIRA as a change management, work management, and SCRUM Agile tool to track and manage project tasks, sprints, and workflows effectively.

o.

Docker:

Containerization: Proficient in working with Docker and Kubernetes, including creating and managing Docker containers to ensure efficient and scalable application deployment.

Image Management: Expertise in building Docker images, pushing them to Docker registry, and deploying and maintaining microservices using Docker, ensuring seamless integration and continuous delivery.

Automation: Skilled in writing Dockerfiles for container management and setting up automated builds on Docker Hub, streamlining the development and deployment process.

Kubernetes Integration: Experienced in installing and configuring Kubernetes to orchestrate Docker containers, ensuring high availability and fault tolerance of applications.

OS:

Linux Administration: Extensive experience in administering various Linux distributions, including Redhat, CentOS, SUSE, and Ubuntu, ensuring optimal performance and security.

Windows Administration: Proficient in managing Windows operating systems, including XP, 2003, 2008, and 2012, with a focus on system stability and security.

System Administration: Skilled in system administration tasks across multiple platforms, including RHEL, CentOS, and Ubuntu, with expertise in installation, configuration, tuning, security, backup, recovery, and upgrades.

Scripting: Proficient in Bash and Python scripting for automating administrative tasks and enhancing system functionality.

Networking: Experienced in TCP/IP network setup and troubleshooting, ensuring reliable and secure network communication.

Network Analysis: Hands-on experience with tcpdump and analyzing pcap files for network troubleshooting and performance optimization.

Operation Support 24x7:

oExperience in 24x7 production support environments, on-call, and weekend support.

TECHNICAL SKILLS:

Operating Systems

Redhat Linux 5.x/6.x/7.x, Sun Solaris8, 9/10/11, SGI Irix, SUSE Linux, Ubuntu, VMWARE ESX 3.5, 4.0,Windows XP/NT/ 2000/2003/2008/2012

DevOps Tools

AWS CodeCommit, Code Deploy, Code Build, Code Pipeline, OpsWorks, Chef, Puppet, Ansible, Jenkins, GIT, Terraform

Data Streaming

Confluent Kafka

Cloud

AWS EC2, Load Balancing, Auto scaling, RDS, EKS, Lambda, S3, Cloud formation, Cloud front

Azure, VMSS, AKS, Private End Points, Private Link Services

Hardware

HP Blade Servers, IBM Blade servers, Dell PowerEdge Series Servers, SUN Blade and Fire series Servers, SGI Servers and Workstations, CISCO NW HW

Languages

Visual Basic, XML, PHP, Shell Scripting - ksh, Bash, and csh, Java scripting, Perl, Ruby, and Python.

Virtualization

VMware

Databases

MySQL, SQL server, Oracle 8i, 9.2.x, 10 and Sybase

Storage Technologies

IBM, EMC/Clariion, NetApp, SUN & HP NAS/SAN

Backup Technologies

TSM Tivoli Storage Manager

Monitoring Tools

Nagios

Networking Protocols:

SNMP, SMTP,TCP/IP,NetBEUI, SSH,SSL,BGP,EIGRP,LAN,WAN,ARP/RARP, LDAP, FTP/TFTP, RIP, DHCP, DNS, NIS

Application Servers

Tomcat, Web Logic, JBoss

File System:

Xfs, ext2, ext3, ext4,NFS

PROFESSIONAL EXPERIENCE

AT&T, Atlanta (Remote) 01/2022 - Present

Role: Network Operations Administrator

Responsibilities: Tier2 Support

Experience in Infrastructure Management, Monitoring and Alerting, and Operational Support**

Proficient in Kafka Connect utilizing Schema Registry in a high-volume data handling environment.

Experienced with Kafka brokers, Zookeepers, KSQL, KStreams, and Kafka Control Center.

Knowledgeable in Avro converters, JSON converters, and String converters.

Skilled in various Kafka connectors, including Snowflake Connector, MQ connectors, Elastic Search connectors, JDBC connectors, File Stream Connector, and JMS Source connectors, as well as tasks, workers, converters, and transforms.

Developed custom connectors using Kafka core concepts and APIs.

Actively worked on connectivity to Azure VMs, with Confluent Kafka deployed in both production and non-production environments and provided knowledge transfer to the team as needed.

Experience in setting up Kafka REST Proxy.

Provided active support for client requests.

Extensive experience writing Bash scripts using Confluent Kafka commands.

Utilized techniques to achieve optimum performance, high availability, and stability of solutions.

Experienced with stream processing using Kafka.

Worked with Azure Event Hubs, focused on creating Event Hubs and educating the team.

Actively engaged in troubleshooting REST APIs.

Strong background in the publish/subscribe model and the observer pattern.

Familiar with everyday use cases for Apache Kafka.

Experienced with the Confluent Platform for Apache Kafka.

Expertise in cloud computing platform such as Azure, including their offered services and functionalities.

Solid experience with Infrastructure as Code concepts, working with this methodology, and proficient in Terraform.

Cluster Management

oCreate and configure AKS clusters using Azure CLI, ARM templates, or Terraform.

oEnable Microsoft Entra ID (formerly Azure AD) integration for secure identity-based access.

oManage node pools (scaling, upgrading, and OS patching).

Monitor cluster health using Azure Monitor, Prometheus, and Grafana.

oAccess Control & Security

oImplement Azure RBAC for Kubernetes authorization to unify access control across Azure and Kubernetes.

oConfigure Kubernetes RBAC roles and bindings for granular access to namespaces and workloads.

oManage secrets and credentials using Azure Key Vault and integrate with AKS workloads securely.

Audit access and activity logs to ensure compliance and traceability.

oWorkload Deployment & Operations

oDeploy containerized applications using Helm, kubectl, or CI/CD pipelines.

oManage namespaces, services, and ingress controllers for multi-tenant environments.

oConfigure autoscaling and resource quotas to optimize performance and cost.

Monitoring & Logging

oIntegrate with Azure Monitor and Log Analytics for centralized observability.

oSet up alerts and dashboards for proactive issue detection.

oUse container insights to track pod performance and resource usage.

Updates & Maintenance

oPerform cluster upgrades with minimal downtime.

oApply security patches and monitor CVEs affecting Kubernetes components.

oBackup and restore cluster configurations and workloads.

I interacted directly with external and internal business partners and collaborated with team members across different time zones.

Skilled in switching between projects and troubleshooting customer issues.

Proven ability to manage disagreements with team members or customers effectively.

Environment: Confluent – Kafka, Terraform, Ansible, Microsoft Azure, AKS, IEBUS Application, Rest API, Snowflake Connector, CDC connectors, Elastic Search connectors, JDBC connectors, File stream connectors.

Cisco, Sanjose, CA 06/2021 – 10/2021

Role: AWS DevOps Engineer

Responsibilities:

Worked on Identity Access Management service (IAM) in creating and managing the user accounts, groups, and their policies.

Automate Deployment using Terraform and use a configuration management tool like Ansible to provision AWS Instances to enable continuous Deployments.

Profound in managing the Configuration Management and source code repository using tools like GIT, Bitbucket.

Experience in using Jenkins, Code Deploy for CI/CD pipelines.

Expertise in assessing the AWS spend per annum and deriving cost optimization in the AWS environment

Identify probable cost spending areas with the help of tools such as Cloud Health, Cloudaware, and AWS Trusted Advisor

Expert in automating various procedures to identify high spending resources

Experience in developing the lambda functions below as part of automation.

Extensive experience in developing the License Manager Project for Cisco.

Experience in RDS Clusters.

Environment: AWS, Jenkins, Python, Ansible, Jira, Circle CI, Atlantis, Cloud Health, Cloudaware.

Freelancing support to various clients in India and in USA 01/2014 – 04/2020

Role: Freelancer Cloud & Systems Administrator

AWS Azure Linux DevOps

AWS Administration

Deployed and managed EC2 instances, configured VPCs, subnets, route tables, NAT gateways, and security groups for secure multitier architectures.

Implemented IAM policies, roles, MFA, and leastprivilege access for client environments.

Configured S3 lifecycle policies, versioning, and crossregion replication for backup and archival.

Set up CloudWatch alarms, dashboards, and log monitoring to improve visibility and reduce downtime.

Managed RDS instances, snapshots, parameter groups, and automated backups.

Performed cost optimization by rightsizing instances and implementing reserved instance strategies.

Managed Application Load Balancers (ALB) and Network Load Balancers (NLB) for scalable, fault tolerant architectures supporting EC2, ECS, and containerized workloads.

Configured listener rules, target groups, health checks, and cross zone load balancing to optimize traffic distribution and reduce latency.

Integrated ALB with Auto Scaling Groups, enabling dynamic scaling and automated backend registration/deregistration during scale events.

Improved security and performance by implementing AWS WAF, SSL/TLS termination, sticky sessions, and fine tuned idle timeouts for high traffic applications.

Azure Administration & DevOps

Managed Azure resources including VMs, VNets, NSGs, Load Balancers, Storage Accounts, and Azure AD.

Built and maintained Azure DevOps CI/CD pipelines for application deployments using YAML and classic pipelines.

Automated provisioning of resources using ARM templates and basic Terraform modules.

Integrated Azure Monitor, Log Analytics, and Application Insights for proactive monitoring.

Supported identity and access management using Azure AD, RBAC, and conditional access.

Managed Azure Standard Load Balancers with optimized rules, health probes, and backend pools to support highavailability VMSS, AKS nodes, and multitier applications.

Configured internal and external load balancers to secure and streamline northsouth and eastwest traffic across VNets, subnets, and private endpoints.

Implemented NGINX ingress + Azure Load Balancer for AKS clusters, enabling Layer7 routing, SSL termination, and bluegreen/rolling deployments.

Diagnosed and resolved loadbalancing issues using Network Watcher, NSG flow logs, packet captures, and connection monitoring.

Linux Administration

Installed, configured, and maintained RHEL, CentOS, and Ubuntu servers for production workloads.

Performed patching, kernel upgrades, log rotation, cron automation, and system hardening.

Configured Apache/Nginx, SSH security, firewall rules, and SELinux policies.

Automated routine tasks using Bash and Python scripts, improving operational efficiency.

Troubleshot performance issues using top, htop, iostat, netstat, journalctl, and system logs.

DevOps & Automation Projects

Automated deployment workflows using Git, Azure DevOps, and shell scripting.

Implemented backup automation, log cleanup scripts, and monitoring integrations.

Containerized applications using Docker for development and testing environments.

Supported CI/CD for microservices and monolithic applications.

Sreesaila Networks Pvt. Ltd, INDIA 05/2012 – 12/2013

Role: Chief Technology Officer

Responsibilities:

Head of RIMC (Remote Infrastructure Management Centre) Project and successfully implemented the same. Spice works (Open Source) is used for ticketing, Inventory, Alerts and Monitoring. It is interfaced with MS Excel for Ticket Display and generation of reports.

Head of Service Delivery operations and lead a team IT Support service professionals L3 support

Activities include

Support for IT infrastructure consisting of more than 200 Servers, 1200 Desktops and Laptops

Installing and upgrading Redhat 5.x, CentOs 5.x, SUSE and Solaris 9/10

Installing and upgrading Windows 2008, 2012 Servers

Patch Management of all Servers and Desktops for windows and linux

Creating sparse root and whole root zones and administered the zones for Web, Application and Database servers and worked on SMF on Solaris 10.

Implemented and administered VMware ESX 3.5, 4.x for running the Windows, Redhat Linux and Ubuntu Servers on development and test servers.

Involved in managing SAN disks like EMC Clariion using EMC Powerpath and Volume Management software

Computer Maintenance Agency, Hyderabad, INDIA 02/1993 – 03/2012

Role: Technical Manager

Responsibilities:

Lead a large maintenance team - involving Service Delivery for more than 3000 Servers + Desktops + Laptops +Storage

Providing L2 support

Training for Support engineers

Installation and management of HP/DELL/SGI/SUN Servers and work stations

Installing SGI Irix/ SUN Solaris/ Redhat OS

Installation and management of EMC/Clariion, HP EVA Series and SUN Storage.

Storage Management of EMC/Clariion NAS, HP EVA Series NAS and SUN Storage

Installation and configuration of NW Hardware Campus wide.

Network Management of Campus wide networking.

Education:

Electrical communication Engineering

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