Vishwaja Marreddy

Experienced IT Engineer with 7.5+ years of expertise in end-to-end application development, specializing in AWS, DevOps, Linux, and RHEL. Demonstrated proficiency in SDLC, Agile methodologies, and effective management of ad-hoc requests, deployments, and client interactions. Proven leadership abilities with exceptional communication skills, adept at handling multiple assignments and successfully executing application migrations to Kubernetes (k8s).

• Star Employee of the Month
• Client Appreciation for Successful Kubernetes Migration

Sr DevOps Engineer

OPT IT (Jan 2023 - till now)

• Led major efforts in migrating applications from VM-based infrastructure to Kubernetes, ensuring stability and efficiency.

• Implemented robust logging and monitoring solutions using Prometheus/Grafana and EFK stacks.

• Proficient in scaling applications dynamically based on CPU, memory, Kafka lag, and HTTP requests using KEDA.

• Managed Kafka and Kafka sink connectors for efficient log processing and analysis using S3 and MongoDB.

• Ensured smooth migration and stabilization of environments, prioritizing latency and security considerations.

• Automated CI/CD pipelines using Devtron, facilitating seamless deployment of SaaS products in client environments.

• Hands-on experience with Azure AKS, ApiGateway, Keyvaults, and ACR, including setup of cross-cloud VPN connections.

• Utilized Oracle Cloud OKE for container orchestration, leveraging secretvault and container registry capabilities.

• Successfully migrated Elastic Beanstalk from AmazonLinux1 to AmazonLinux2 across all environments using CodeBuild and CodeDeploy.

DevOps Engineer

OPT IT (Dec 2021 - Jan2023)

• Collaborated closely with Dev and QA teams to provision infrastructure including EC2 instances, Load Balancers, Target Groups, Route53, S3 buckets, SNS, and SQS.

• Managed access to EC2 instances for developers using RSA keys and deployed pipelines using Jenkins for CI/CD.

• Deployed applications on EC2 instances and implemented Elastic APM for request tracing and error detection.

• Administered Elasticsearch index management and utilized Bitbucket for source code management, handling user permissions and pull requests.

• Configured Prometheus and Grafana for infrastructure monitoring and set up AWS Chatbot for Slack notifications from CloudWatch log alerts.

• Dockerized applications on EC2 and deployed to EKS using Helm charts, migrating Java (Jetty server, Spring Boot), Python, and Node applications.

• Overcame challenges such as DNS endpoint changes from internal Load Balancers to Route53 entries, ensuring smooth routing transitions.

• Utilized MultiBranch Pipeline for EKS deployments, facilitating easy branch deployment and testing.

• Successfully migrated over 50 services from EC2 to staging environments, optimizing costs by terminating unnecessary EC2 instances.

• Responsible for resolving server disk issues and managing access to RDS tables for different teams.

DevOps Engineer

AGUILASS Solutions(July 2019 - Dec 2021)

• Configured ELK stack with AWS OpenSearch, integrating Filebeat and Logstash, and implemented Rsyslog for centralized log management in Elasticsearch.

• Set up Prometheus and Grafana to monitor EC2 instances for system metrics, process monitoring, URL monitoring, and AWS Apache Kafka.

• Implemented Alertmanager to notify relevant stakeholders based on alert severity levels.

• Configured Grafana's CloudWatch datasource to monitor 4xx and 5xx errors in Application Load Balancers (ALB).

• Secured infrastructure with Pritunl VPN for restricted access, implemented two-factor authentication on Jumphosts, and used Fail2ban to mitigate IP-based attacks.

• Automated deployments using Ansible playbooks for Filebeat, Logstash, Rsyslog, Fail2ban, and SSH file modifications to comply with security standards.

• Developed Terraform scripts to provision EC2 instances, Load Balancers, Target Groups, and Security Groups, utilizing S3 for state file storage.

• Managed IAM roles and policies as needed to ensure secure access and permissions across AWS services.

Senior Systems Engineer

Infosys (July 2016 - Sep 2018)

• Analyzed and secured open ports by configuring Security Group rules for inbound and outbound traffic.

• Managed ECS clusters for container orchestration, ensuring reliability and scalability of applications.

• Developed Jenkins pipelines for building Docker images, pushing to ECR repositories, and deploying to ECS clusters.

• Maintained high availability of infrastructure through proactive monitoring and optimization.

• Created IAM users, roles, and policies to manage access permissions effectively.

• Implemented S3 buckets and enforced bucket policies to restrict unauthorized access.

• Enabled CloudTrail to monitor and audit user activities across AWS services.

• Configured CloudWatch dashboards and alerts for EC2 instance metrics (Disk, CPU, Memory), and RDS performance metrics (Read/Write IOPS).