Jinna Pavan Kumar

Linux and AWS Administrator (Consultant)

Bristlecone

05.2022 - Current

Managed Linux environments including SLES (SUSE Linux Enterprise Server), RHEL (Red Hat Enterprise Linux), and CentOS, focusing on server maintenance, upgrades, and troubleshooting
Led patching activities and performed OS upgrades for SLES and RHEL, resolving issues related to system and application performance during and after upgrades
Implemented disk management strategies including partitioning, file system tuning (ext4, XFS), and used LVM (Logical Volume Management) to manage volumes for flexibility in storage allocation
Administered user management, ensuring secure access control with sudo, ACL, and user/group policies, and created scripts to automate administrative tasks using cron jobs
Configured, managed, and troubleshot services such as FTP, Samba, NFS, and SFTP for efficient file-sharing and access control
Managed server swap memory and optimized system performance by allocating resources and tuning memory settings for better server stability
Provided on-demand SSH access and maintained secure communication channels between servers
Worked with AWS EC2 instances, providing cost analysis and recommendations for resource utilization, including the AWS Savings Plan to optimize instance costs and reduce billing
Led the provisioning of EC2 instances based on customer requirements, ensuring they met their performance, availability, and cost needs
Created, configured, and optimized EBS volumes, attaching and extending them based on storage requirements and application needs
Managed S3 buckets, ensuring secure access and implementing data lifecycle management, including backups and file storage solutions for Linux servers
Utilized AWS Health Dashboard to monitor the health of the AWS account and ensure system uptime by analyzing and resolving service issues promptly
Configured CloudWatch alarms to monitor application performance, setting up thresholds for real-time alerts
Configured and managed RDS (Relational Database Services) for customers, ensuring seamless database backup and high availability configurations
Implemented IAM (Identity and Access Management) policies to ensure granular access control for AWS resources, and created custom roles for users
Created and managed SNS (Simple Notification Service) topics for job scheduling, maintenance windows, and system alert notifications
Configured Elastic Load Balancers (ELB) to ensure high availability and distribute traffic efficiently across EC2 instances
Assisted in the purchase of AWS Savings Plans, guiding customers on optimal savings strategies based on their workload requirements
Managed AWS billing details for customers, helping them understand their cloud usage and how to optimize costs using AWS Savings Plans
Provided cloud cost optimization strategies, including recommendations for appropriate instance types, and size adjustments to reduce monthly spend
Configured and monitored GuardDuty alerts for security threats, ensuring real-time threat detection and response
Managed and implemented security measures using AWS Security Hub and Config to monitor AWS accounts for compliance and vulnerabilities
Worked on VPC (Virtual Private Cloud) design and management, ensuring the cloud network was secure, with private subnets, and public-facing services were isolated
Implemented VPC Peering for communication between VPCs, optimizing network architecture for scalable solutions