Technical Skills
puneet@homelab: ~
puneet@homelab:~$ kubectl get techskills -n puneet -o jsonpath='{.spec}' | jq { "Cloud & Infrastructure": "AWS (EKS, EC2, S3, VPC, IAM, Route 53, API Gateway, CloudFormation), Bare-Metal, HA, DR (RPO/RTO)", "Orchestration & Networking": "Kubernetes, Gateway API, MetalLB (L2/BGP), Istio, Docker, TCP/IP, DNS, Nginx, HAProxy", "CI/CD & Automation": "Terraform, Ansible, Jenkins, Helm, GitOps, Shell Scripting, Python", "App Engineering & Messaging": "Java, Spring Boot (@Async, WebSockets/STOMP), Apache Kafka, Redis (Pub/Sub & Caching)", "Databases": "CloudNativePG, PostgreSQL HA, Oracle Database", "Identity & Security": "AWS Cognito, Azure AD (Entra ID), SAML 2.0, OAuth2/OIDC, IAM Policies", "SRE & Observability": "Prometheus, Grafana, Dynatrace, ELK Stack, CloudWatch, SLA/SLO, RCA" } puneet@homelab:~$ ▋
Certifications
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Experience
Lead DevOps Engineer
Jul 2025 - Present
Infosys · Chandigarh, India
- Serve as L3 technical escalation lead for mission-critical AWS enterprise and on-premise workloads, maintaining 99.99% system availability and cutting Mean Time to Resolution (MTTR) by 60%.
- Orchestrated enterprise multi-region Disaster Recovery (DR) drills across hybrid AWS/on-prem environments, achieving RPO < 5 minutes and RTO < 1 hour with zero production impact.
- Lead Root Cause Analysis for complex infrastructure and application incidents, identifying underlying failure mechanisms and driving corrective actions to reduce recurrence risk.
- Migrated a standalone 10TB PostgreSQL database to a multi-site, active-active CloudNativePG cluster, cutting failover time to under 10 seconds.
- Architected and provisioned an on-premise, production-grade 50+ node bare-metal Kubernetes cluster, implementing MetalLB (Layer 2/BGP) and the Kubernetes Gateway API (Envoy) for declarative, multi-tenant L4/L7 ingress traffic routing and full-stack Prometheus/Grafana monitoring.
Technology Analyst
Jul 2023 - Jun 2025
Infosys · Ipswich, UK
- Streamlined application delivery for core Java / Spring Boot microservices by designing end-to-end Jenkins/GitLab CI/CD pipelines with automated testing and rollbacks.
- Administered enterprise Apache Kafka clusters across multi-broker topologies, tuning partitions, replication factors, and consumer groups to support high-throughput event streaming.
- Configured and managed multi-tenant Kubernetes clusters, implementing Istio Service Mesh to enforce mTLS encryption, traffic routing, and fine-grained access control.
Senior Systems Engineer
Jul 2021 - Jun 2023
Infosys · Chandigarh, India
- Architected enterprise Single Sign-On (SSO) by federating AWS Cognito User Pools with Microsoft Azure AD (Entra ID) via SAML 2.0, enabling seamless corporate login for 5k+ internal and external users.
- Designed and implemented enterprise file-handling services supporting dynamic routing to AWS S3 for bulk asset storage and Microsoft SharePoint for collaborative document management via REST APIs.
- Provisioned and maintained AWS infrastructure using CloudFormation and Terraform.
Systems Engineer
Jul 2019 - Jun 2021
Infosys · Chandigarh, India
- Architected asynchronous processing pipelines using Spring @Async and custom ThreadPoolTaskExecutor configurations, reducing API p99 latency by 50%.
- Built full-duplex WebSocket communication using Spring Boot and STOMP backed by a Redis pub/sub broker, replacing client polling and delivering sub-second real-time UI updates.
- Developed automated Linux health-monitoring shell scripts across 40+ hosts to profile CPU, memory, and disk saturation, auto-triggering SMTP alerts and ServiceNow incident tickets.
Projects
cloud-native-homelab
GitHub ↗
GitOps-style Kubernetes manifests and automation for a self-hosted K3s homelab — Deployments, Services, ConfigMaps/Secrets, ingress, and observability, organised by category with helper scripts.
homepage-homelab
GitHub ↗
This site — a Java Spring Boot backend serving a vanilla HTML/CSS/JS portfolio and a live homelab dashboard, aggregating Prometheus metrics and self-hosted app APIs. Built into a container and deployed to K3s.
Awards & Recognition
Insta AwardInfosysJun 2021
Insta AwardInfosysAug 2022
Star PerformerBritish TelecomNov 2022
Insta AwardInfosysJun 2023
Insta AwardInfosysMar 2024
Tech-XpertInfosysApr 2025
Best Engineering Team of the YearDevOps Show 2025 · organized by Quantic, hosted by Last9Feb 2025