Bhavana Balachandran
Bangalore
Summary
Over 10+ years of experience in supporting business-critical applications, with a focus on robust cloud infrastructure and network security. As a DevOps leader with good managerial skills, I excel in guiding teams to design and manage scalable microservices and implement effective observability solutions, ensuring platform reliability and performance.
Overview
11
11
years of professional experience
Work History
Lead DevOps Engineer
Falabella India
Bangalore
10.2020 - Current
- Led and supervised an India-based DevOps team consisting of 4 members
- Ensured seamless integration of a new application into cloud infrastructure through collaborative design discussions
- Securely built highly scalable business critical application by following operational standards
- Implemented Private Service Connect to enhance network security and simplify service consumption through enabling secure, private connectivity between Google Cloud services and VPCs
- Achieved significant cost reductions of nearly 2 million USD through the optimisation and adoption of industry-leading methods.
- Manage GCP end to end using Infrastructure as Code (Terraform)
- Facilitated smooth application integration through ArgoCD for GitOps based continuous deployment
- Brought in many security features such as IAP tunneling, shielded nodes, Workload identity Federation, KMS encryption which made GKE cluster robust
- Manage Billing, IAM, Networks, DB and many more on GCP
- Designed and Orchestrated Istio (service mesh) upgrade and GKE upgrade for 80+ clusters with minimal downtime
- Implemented effective solutions to troubleshoot and rectify production issues based on comprehensive application expertise.
- Plan and manage entire infrastructure before the cyber event and make it 100% stable and available
- Identified potential improvements in DevOps through researching and implementing cutting-edge technologies and tools
- Panel member for recruiting candidates for DevOps team.
Senior DevOps Engineer
Falabella India
Bangalore
10.2018 - 09.2020
- Help and support developers to fix all the issues related to CI/CD pipeline on both gitlab and ArgoCD
- Experience in debugging Helm deployment and supported application team to upgrade their deployment to a stable version of Helm
- Automate and reduce time spent by DevOps team to debug and fix deployment related issues
- Experience in setting up the entire cluster in GKE, from dev env to production
- Efficiently deployed VictoriaMetrics to establish high-performing and scalable monitoring infrastructure across several kubernetes clusters.
- Experience in administration controllers like Kyverno
- Executed a successful POC for the implementation of Metabase, a DB Analytics tool. Deployed and managed its hosting on Read Replica through Helm.
- Experience in managing GCP Networking Services like Cloud load balancer, Cloud DNS, Cloud NAT
- Experience in managing and configuring Google VPC network, creating firewall rules, Routes, VPC network peering
- Worked on creating Compute Engine with IAP tunnelling using terraform with restricted access
- Managing different databases like Prometheus, Postgress, Redis, Bigquery
- Responsible for writing comprehensive Terraform configurations, as well as incorporating optimization with the use of Terralint and Terrascan
- Worked on CDN called Cloudflare - created page rules, A records, Authentications, firewall rules etc.
Sr. Systems Executive/Technical Lead
Cognizant Technology Solutions
Bangalore
10.2015 - 10.2018
- Developed Chef Recipe for infrastructure as well as application deployment automation and the house keeping scripts to start/stop/clean applications
- Integrated the same with Jenkins job to implement CI-CD
- Installed software such as, NodeJS, PM2, OneAgent, Zabbix, required by the business team, manually and by using Chef
- Created VMs(Linux) in Azure by using templates and Chef based on the requirement
- Monitored the VMs in Azure Management portal
- Created Azure service bus, Queues, Topics, Subscription to support various development requirements
- Created JBoss instance to support ATG applications
- Apache web server instance creation and support
- Created housekeeping scripts for Apache and JBoss instances
- Developed directory monitor Shell script that will delete files older than specific days
- Created entire environment set up required for Micro services on nodeJS and Springboot
- Environment setup for hosting PM2 for nodeJS applications
- Created configuration files required for the startup of micro service
- Also created scripts for starting PM2 on nodeJS micro service application
- Automated many status reports using Shell scripting
- Made a process to run as a service to enable auto start of application on system reboot
- Upgraded OpenSSL to 1.0.2u version
- Compiled it from source code and have done the upgrade from Development to Production Environment
- Owner of Splunk tool, and renewed the license whenever required
- Hosted Splunk forwarders in the app/web server for log analysis
- Configured Alerts and remedy measures in Splunk, so that it will trigger the alert to Production Support Team once reached threshold
- Owner of license, certs and jks applied in all the application, and maintained the same
- Implemented any configuration or Code deployment changes in Production Environment using Change Requests
- Supported Agile model of code release and deployment
- Incident management procedure to roll out a change in Environments.
Engineer Trainee/Sr. Systems Executive
Cognizant Technology Solutions
Bangalore
10.2013 - 10.2015
- Handled Incident/Request which included Login and other issues for DNBi Application
- Monitored Database using Oracle Enterprise Manager 12c
- Coordinated with client to restart schedulers on Production server
- Monitored Disk/ Space Utilization on Production server
- Monitored servers for high Apache/thread count and Garbage collection
Education
Skills
- Cloud Providers: GCP, Azure
- Containerisation: Docker, Kubernetes
- IAC: Terraform
- GitOps: ArgoCD
- CI/CD: Gitlab, Jenkins
- Scripting: Unix Shell
- Monitoring and Observability: Stackdriver, Datadog, Grafana Loki, Splunk, VictoriaMetrics, Prometheus
- Configuration Management: Chef
- Package Manager: Helm
- CDN: Cloudflare
- Service Mesh: Istio
- Authentication Platform: Auth0, KeyCloak
Timeline
Lead DevOps Engineer
Falabella India
10.2020 - Current
Senior DevOps Engineer
Falabella India
10.2018 - 09.2020
Sr. Systems Executive/Technical Lead
Cognizant Technology Solutions
10.2015 - 10.2018
Engineer Trainee/Sr. Systems Executive
Cognizant Technology Solutions
10.2013 - 10.2015
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