Resume
ATS-compliant resume for Vishnu Agarwal - Senior DevOps Engineer
VISHNU AGARWAL
Senior DevOps Engineer | Remote
Email: vishnuagarwal1545@gmail.com | Phone: +91 9884213512
Website: https://vishnuagarwal1545.github.io
PROFESSIONAL SUMMARY
Senior DevOps Engineer with 6+ years of experience in cloud infrastructure, platform reliability, and large-scale automation. Proven expertise in AWS, Kubernetes, Terraform, CI/CD, database engineering, and streaming platforms. Strong background in driving cost optimization, security hardening, and high-availability architectures for SaaS and data-intensive systems.
CORE SKILLS
AWS, Kubernetes (EKS), Terraform, ArgoCD, Argo Workflows, Kafka, Databricks, PostgreSQL, Aurora, Redis, Valkey, OpenSearch, CI/CD, Python, Bash, GitOps, FinOps, Observability, Security Engineering, IAM, VPC, Route53, Nginx, OpenVPN, Datadog, Squadcast, PagerDuty, SSM Parameter Store, Elasticache, S3, EC2, ECR
PROFESSIONAL EXPERIENCE
Teikametrics — Senior DevOps Engineer (Remote)
Nov 2022 – PresentDATABASE ENGINEERING
- Led migration POC from RDS to Aurora PostgreSQL, designing parallel infra to benchmark cost and performance
- Engineered Aurora cluster topologies including provisioned and serverless writers/readers
- Implemented blue-green deployments for database downsizing ensuring zero downtime
- Tuned PostgreSQL parameters and implemented RDS Proxy to fix high concurrency issues
- Led major PostgreSQL version upgrades and resolved Flyway compatibility issues
CLOUD INFRASTRUCTURE & NETWORKING
- Architected staging OpenVPN infra and managed lifecycle including security patching
- Resolved intermittent VPN connectivity issues for secure access to private subnets
- Migrated traffic from Convox LB to centralized Nginx Ingress
- Implemented VPC peering, Route53 DNS, DMARC/DKIM, and security groups
- Implemented Terraform-based rate limiting on ingress
KUBERNETES & GITOPS
- Upgraded EKS clusters from v1.24 to v1.33 ensuring addon compatibility
- Implemented HA for ArgoCD, Argo Workflows, and Cluster Autoscaler
- Optimized Argo Workflows reliability and safely decommissioned legacy clusters
DATA ENGINEERING & STREAMING
- Migrated Databricks infra to Terraform with full state management
- Implemented service principals and Unity Catalog credentials
- Managed Kafka ecosystem including retention tuning and ACL governance
- Built Kafka lag monitoring in Datadog
CI/CD & DEVOPS TOOLING
- Built secure CI tunnels for integration tests to access private infra
- Fixed Java OOM pipeline failures via resource optimization
- Built Python CLIs tm-ctl and tf_bootstrap to standardize Terraform bootstrapping
- Enhanced TerraformCD tooling with safety controls and drift detection
CACHING & RELIABILITY
- Led Redis to Valkey migration with zero data loss
- Scaled Elasticache clusters for Prime Day traffic and tuned eviction policies
FINOPS & COST OPTIMIZATION
- Migrated RDS fleets to Graviton and GP3 for cost-performance gains
- Implemented aggressive S3 lifecycle rules to reduce storage costs
- Investigated AWS budget overruns and removed unused resources
OBSERVABILITY & INCIDENT RESPONSE
- Implemented Datadog monitoring for RDS, Kafka lag, and services
- Managed OpenSearch upgrades and Vector log pipelines
- Integrated alerts with Squadcast and PagerDuty for Sev1 automation
SECURITY & ACCESS MANAGEMENT
- Migrated secrets to AWS SSM Parameter Store
- Led emergency credential rotations for OpenSearch and Aiven
- Re-architected IAM and Databricks permissions with least-privilege model
Infosys — Specialist Programmer, DevOps Lead (Bengaluru)
Jun 2020 – Nov 2022Project: Finacle OePayments (Edgeverve) - Payment solutions (NEFT, RTGS, UPI) deployed at multiple banks
DEVOPS & CI/CD
- Developed CI/CD pipeline using GitLab CI for payment solutions
- Established DevOps processes and conducted team awareness programs
- Managed and coordinated with a team of 4 engineers, increasing team performance by 50%
- Spearheaded client delivery scripts and implementation support with Ansible and Bash
SECURITY & COMPLIANCE
- Devised licensing code and integrated it to internal license provider
- Supervised FOSS scan for licensing checks; developed component for automated FOSS scan on GitLab CI
- Enhanced efficiency by 250% with customized FOSS scan integration artifact with Black Duck
- Integrated Seeker Scan in K8s to do dynamic code scan (Interactive App Security Scan - IAST)
- Applied Security Vulnerability fixes in code to the process
KUBERNETES & INFRASTRUCTURE
- Organized infrastructure components like Redis, RabbitMQ, InfluxDB as well as Grafana on VM and as pods on K8s
- Utilized multiple environments for Kubernetes/Istio, DevOps and Test activities on On-Premise, AWS and GCP environment
- Created Bash/Linux utility to reset, refresh k8s area and image tagging utility to tag stable, latest build of apps
- Implemented Login-Logout Architecture design, and associated with JWT, OAuth 2.0
- Used Grafana SSO integration with in-house IDP and applied Grafana startup configuration and deployment
PERFORMANCE OPTIMIZATION
- Performed System Performance Testing with JMeter, Oracle/PG db, Redis and Redis Sentinel
- Maximized app performance using tools like JMeter, Grafana & Flame-Graph to achieve 3x TPS increase
Infosys — System Engineer Specialist, Java Spring-Boot Developer (Bengaluru)
May 2019 – Jun 2020Project: Nexus (CareFirst BlueCross BlueShield) - Healthcare re-imaging product with latest tech stack and cloud implementation
- Created Spring Boot app to implement business logic using Kafka and Postgres DB
- Independently developed Kafka POC in initial phase of project to implement Kafka library
- Implemented logging and log masking
- Proficiently developed Apigee integrations
- Developed Authorization Architecture with Open Policy Agent and Kubernetes
- Participated in internal hackathon
EDUCATION
B.Tech in Computer Science
2015 – 2019SRM Institute of Science & Technology, Chennai, India
CGPA: 8.92
AWARDS & RECOGNITIONS
- Certificate of Excellence - STG Ninja Award for Individual Performance (2022)
- ESOP for Outstanding Performance (2021-2022)
- Insta Award for contribution towards Nexus, CareFirst (2019)
CERTIFICATIONS
- AWS Certified Developer - Associate (2020)