Sep 2019 – Jun 2022 · 2 yrs 9 mos · Bangalore · On-site

• Monitoring:
• 1. Lead the architecture design and implementation of monitoring, alerting, and metric collection infra for 300+ boxes and 70+ apps from scratch, reducing the cost by 2000$ using the Prometheus stack.
• High Availability:
• 1. Guided the team to reduce the manual scaling operational time by 70% using AWS autoscaling groups for apps handling the traffic of 50000+ live users.
• 2. Solved the problem of a single point of failure and load distribution in the ELK stack by adding Logstash servers.
• Release Management:
• 1. Created Jenkins CI/CD pipelines, for building rpm packages and docker images, in turn publishing them to rpm and ECR repositories and further deploying them on respective servers and ECS clusters.
• 2. Migrated apps to Ecs clusters for easy release management and autoscaling.
• 3. Did POC on Jenkins serverless using Amazon Elastic Container Service (ECS) / Fargate plugin, for reducing the load on Jenkins master servers.
• Configuration management:
• 1. Launched salt-api in salt-stack for smooth integration with other automations.
• 2. Written various salt-state files for change management and deployment of apps across 300+ boxes.
• Data integration and analysis:
• 1. Created a tool in python for 100k+ domains that analyzes the retention period of our customers, in turn pitching in better offers, or getting better feedback from customers.
• Migrations and Benchmarking:
• 1. MySQL Zero downtime database migration using master-master replication technique from amazon rds to amazon aurora
• 2. Benchmarked MySQL RDS vs MySQL aurora, in terms of pricing, scaling, upgradations, maintenance, and operation handling
• Other roles and responsibilities:
• 1. Write parsers, backup, and metric collection scripts
• 2. Write RCAs for issues and downtimes.
• 3. Access management, AWS resource provisioning, Jenkins job creations, issue debugging
• 4. Contributed to launching infrastructure with Terraform for infrastructure as a coding initiative with the team.

Sep 2019 – Jun 2022 · 2 yrs 9 mos · Bangalore

Jan 2017 – Sep 2019 · 2 yrs 8 mos · Noida Area, India

• Configuration Management
• 1. Designing configuration management for all the third party services and in house developed applications
• Cost Cutting:
• 1. Migrating Elasticsearch on spot instances using a third party service Spotinst in turn saving $30,000 per month.
• 2. Migrated YARN compute loads to AWS EMR by using AWS spot instances and Auto Scaling techniques in turn saving the cost of $40,000 per month.
• 3. Migrated QA and development servers from AWS EC2 to On Premise Data Centers.
• AWS technologies:
• 1. Improved AWS account authentication process by introducing assume role for cross account management.
• 2. Used Other Services like EC2, S3, IAM, EMR, ELB, Spot Instances, CloudWatch, Route 53, VPC Peering, VPN Tunnelling.
• Monitoring:
• 1. Architected and established infrastructure monitoring using Prometheus, exporters and alert manager with the team.
• 2. Created my own backup and monitoring system written in python.
• Deployment:
• 1. Created jenkins jobs for deployments in production.
• 2. Written shell and ansible scripts for installation of services.
• 3. Production deployments using jenkins and ansible.
• Production Optimisation:
• 1. Optimising Elasticsearch clusters by monitoring it and resolved issues coming in production.
• 2. Issue resolutions related to Spark jobs and Yarn.
• 3. CentOS / Ubuntu system administration and performance tuning.