Cloud & DevOps Engineer · Maharashtra, IN

Sujoy
Bhattacharya

4 years building production Kubernetes clusters, CI/CD pipelines & HA database systems

Designing air-gapped and multi-master Kubernetes environments, architecting banking-grade PostgreSQL HA solutions, and driving DevSecOps practices across AWS, on-premise, and hybrid infrastructure.

40%
Release Cycle Reduction
50%
Faster Incident Response
99.9%
Service Availability
45s
DB Failover Time
View Experience Get In Touch
01.

Technical Skills

☁️
Cloud & Infrastructure
AWS EC2VPCS3 IAMRoute53CloudFront CloudWatchOn-Premise K8sHybrid
⚙️
Containers & Orchestration
KubernetesDocker HelmKustomize
🔄
CI/CD & GitOps
JenkinsAzure DevOps ArgoCDFluxCD GitGitHub
🔐
Security & Compliance
SonarQubeTrivy SnykCheckmarx SASTSCADASTRBAC
📊
Monitoring & Observability
PrometheusGrafana AlertmanagerBlackbox Exporter ELK Stack
🗄️
Databases
PostgreSQL HAPgpool-II CloudNativePGMSSQL LiquibaseFlyway
💻
OS & Scripting
PythonBash RHELUbuntu System Hardening
02.

Experience

SEP 2022 — PRESENT
Remiges Technologies
Navi Mumbai
DevOps Engineer
  • Architected and operated production-grade Kubernetes clusters, including multi-master and air-gapped environments across 3+ client sites — reduced cluster provisioning time by 60%.
  • Engineered HA PostgreSQL architectures using Pgpool-II and CloudNativePG on Kubernetes, enabling automated failover in under 45 seconds at 99.9% availability for a banking client.
  • Built end-to-end CI/CD pipelines using Jenkins and Azure DevOps with staged approvals, quality gates, and SAST/SCA/DAST scans — reduced release cycle time by 40%.
  • Centralized infrastructure monitoring with Prometheus, Grafana, and ELK Stack, cutting incident response time by 50% across 10+ microservices.
  • Enforced RBAC model (L1/L2/L3 operations) on Kubernetes, adhering to principle of least privilege across all environments.
  • Provisioned AWS infrastructure (EC2, VPC, IAM, Route53, CloudWatch) across 4+ environments, reducing manual provisioning effort by 35%.
  • Automated database schema migrations using Liquibase and Flyway within CI/CD pipelines across 5 environments with zero-downtime rollback.
  • Developed Kustomize-driven deployment framework enabling single-command production releases, reducing deployment errors by 30%.
  • Authored Python and Bash automation scripts, saving approximately 8+ hours of manual effort per week.
JAN 2022 — JUL 2022
Experis IT
Navi Mumbai
RF Engineer
  • Delivered high-level and low-level technical designs (HLD/LLD) for 3+ enterprise client engagements with full compliance and on-time delivery.
03.

Certifications

⎈
Certified Kubernetes Administrator (CKA)
Active
☁️
AWS Certified Cloud Practitioner
Active
🔧
AWS CloudOps Engineer Associate (SOA-C03)
In Progress
04.

Projects

Air-Gapped Kubernetes Cluster
🔒

Deployed and operated production Kubernetes clusters in fully isolated, air-gapped environments for banking-grade clients. Included multi-master HA setup, private registry mirrors, and offline Helm chart repos.

KubernetesHelmOn-PremiseRBAC
View on GitHub →
HA PostgreSQL on Kubernetes
🗄️

Engineered high-availability PostgreSQL using Pgpool-II and CloudNativePG Operator on Kubernetes. Automated failover under 45 seconds with 99.9% uptime SLA for a production banking workload.

PostgreSQLPgpool-IICloudNativePGK8s
View on GitHub →
DevSecOps CI/CD Pipeline
🔄

Built end-to-end secure pipelines with Jenkins and Azure DevOps integrating SonarQube, Trivy, Snyk, and Checkmarx at each stage. Reduced release cycle time by 40% with zero-downtime DB migrations via Liquibase.

JenkinsArgoCDSonarQubeTrivy
View on GitHub →
Portfolio Site — This Website
🌐

Personal portfolio hosted on AWS EC2 with Nginx reverse proxy, SSL via Let's Encrypt, and Route53 DNS. Phase 2 will migrate to Flask + PostgreSQL backend. Phase 3: Kubernetes + ArgoCD GitOps.

AWS EC2NginxRoute53SSL
Currently Live →
05.

Blog & Write-ups

Write-ups Coming Soon
Deep dives on real-world DevOps challenges from production environments
Setting up Air-Gapped K8s PostgreSQL HA with CloudNativePG DevSecOps Pipeline Design Kustomize for Multi-Env Deployments Prometheus Alerting at Scale Zero-Downtime DB Migrations
06.

Contact

Let's work
together.

Open to Cloud & DevOps roles, especially CloudOps and Platform Engineering positions. Feel free to reach out for opportunities or technical discussions.

Site Visitors
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✉️
Email sujoybhattacharya1998@gmail.com
💼
LinkedIn sujoy-bhattacharya-cloud-devops-engineer
⚡
GitHub github.com/sujoybhattacharya