Available to join immediately
TCS · Bengaluru
Sreeharinath Peetla.
DevOps Engineer architecting enterprise-grade infrastructure across banking and DTH media domains. Specialized in multi-environment CI/CD, Kubernetes & RHOCP operations, and zero-touch HashiCorp Vault security. Currently scaling systems at CIBC GOW, with prior experience at Tata Play.
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KUBERNETES✦AWS✦TERRAFORM✦RHOCP✦JENKINS✦HASHICORP VAULT✦ISTIO MESH✦GITHUB ACTIONS✦ANSIBLE✦SNYK✦JFROG✦SONARQUBE✦NEXUS✦TRIVY✦
KUBERNETES✦AWS✦TERRAFORM✦RHOCP✦JENKINS✦HASHICORP VAULT✦ISTIO MESH✦GITHUB ACTIONS✦ANSIBLE✦SNYK✦JFROG✦SONARQUBE✦NEXUS✦TRIVY✦
Technical Arsenal
Tools & Craft.
Cloud & Orchestration
- AWS — EC2, EKS, S3, VPC, CLOUD WATCH
- Kubernetes — Vanilla & AWS EKS
- Red Hat OpenShift (RHOCP 4.x)
- Istio Service Mesh — mTLS & Canary
- Docker & Helm Charts
Pipelines & Automation
- Jenkins — Declarative & Scripted
- GitHub Actions Workflows
- Terraform — Modules & Remote State
- Ansible — Playbooks & Roles
- JFrog Artifactory & Nexus
Security & Observability
- HashiCorp Vault Agent Injector
- Snyk · Trivy · SonarQube
- Grafana · Prometheus · Kibana
- FluentBit / Fluentd Log Shipping
- Linux (RHEL, Ubuntu) & Bash
Measurable Impact
By the Numbers.
Production metrics extracted from banking & high-traffic DTH media environments.
0%
Downtime Reduced
0%
MTTD Accelerated
0%
AWS Cost Optimized
0%
Manual Work Automated
0%
Uptime SLA
0
Outages Prevented
Architecture & Impacts
How My Work Brings Value
Core system architecture powering enterprise deployments across banking and DTH media platforms.
DevOps
Core
Writing & Insights
Articles & Notes.
DevOps patterns, platform engineering learnings, and infrastructure war stories.
Kubernetes
Zero-Downtime Deployments with Istio Canary & Traffic Mirroring
A deep dive into safe progressive delivery across CIBC's 8-stage pipeline using Istio's traffic management — without a single user-facing outage.
HashiCorp Vault
Eliminating Hardcoded Secrets: Vault Agent Injector at Scale
How the Vault Agent Injector pattern transformed secret management across 15 dev teams — zero code changes, full audit trail, dynamic rotation.
AWS EKS
Cutting AWS Bills 30%: JIT Provisioning with CronJobs + Lambda
From bloated static node pools to just-in-time provisioning combining K8s CronJobs, Lambda scheduling, and Cluster Autoscaler.
Terraform
Module Design Patterns for Enterprise Multi-Env Infrastructure
Reusable Terraform modules that scale across dev, staging, and prod without drift — remote state and workspace strategies included.
Observability
Building an Alerting System That Doesn't Cry Wolf
Reducing alert fatigue using Grafana + Prometheus rules, smart thresholds, and PagerDuty routing for on-call sanity.
OpenShift
RHOCP 4.x Day-2 Operations: What No One Tells You
Lessons from administering OpenShift in a regulated banking environment — MachineConfig pitfalls, etcd backup strategies, and upgrades.
Career Journey
Experience Timeline.
May 2024 – Present
System Engineer — DevOps Engineer
TCS · CIBC GOW (Canadian Imperial Bank of Commerce)
- Engineered multi-stage CI/CD via Jenkins & GitHub Actions across 8 distinct environments (DEV through PROD).
- Administered RHOCP 4.x clusters; integrated HashiCorp Vault Agent Injector for zero-touch secrets management.
- Deployed Istio Service Mesh with mTLS, Canary routing, and Traffic Mirroring for zero-trust networking.
- Directed Git branching strategy for 15+ developers and managed Helm versioning via JFrog Artifactory.
Mar 2022 – Apr 2024
Associate System Engineer – DevOps Engineer
TCS · Tata Play (DTH Media Platform)
- Orchestrated vanilla Kubernetes and AWS EKS clusters — node scaling, upgrades, and EBS/EFS volume management.
- Reduced AWS costs by 30% via JIT provisioning using K8s CronJobs coupled with Lambda scheduling.
- Configured HPA & Cluster Autoscaler, cutting cluster over-provisioning by 35% across all environments.
- Deployed Grafana/Kibana observability pipelines; averted 10+ outages and reduced system downtime by 70%.