sourav@devops:~$
Available for Cloud & DevOps Roles / Consulting

Hello, World! I am

Sourav Hajra

Cloud & DevOps Engineer

Cloud & DevOps Engineer with extensive hands-on experience in AWS cloud infrastructure, CI/CD automation, Docker, Kubernetes, and Linux system administration. Skilled in infrastructure automation using Terraform and Ansible, with a dedicated focus on building scalable, secure, and 99.9% highly available production microservice ecosystems.

Explore ProjectsInteractive CI/CD PipelineResume (PDF)

99.9%

Production Uptime

40%

Latency Reduced

10+

Microservices Shipped

3x

Cloud & DevOps Certs

bash ~ sourav@k8s-control-plane
ONLINE
Quick:
$sourav --info

Sourav Hajra | Cloud & DevOps Engineer

Specializing in AWS Infrastructure, Docker, Kubernetes, CI/CD Automation (Jenkins, ArgoCD), and Full Observability.

✔ Status: Production Systems Running (99.9% Uptime)

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Architecture: AWS Multi-AZType 'help' for commands
Continuous Delivery & GitOps Engine

Automated CI/CD & DevSecOps Pipeline

Click through each pipeline phase below to inspect the real-world tooling, automated security gates, and deployment workflows implemented in production.

Phase 01 of 06• Active Gate

Code Commit & GitFlow

Feature branches trigger automated webhooks into Jenkins upon pull request creation.

Engineering Benefits & Implementation:

Primary Stack: Git & GitHub
Quality Verification: Verified
pipeline-runner.sh
EXIT 0
# Executed command in CI container:
$ git push origin feature/service-upgrade

# Pipeline stage log stream:

[INFO] Triggering Git & GitHub executor...

[INFO] Stage status: Verified

[SUCCESS] Artifact and audit passed all policy checks.

Production Engineering Portfolio

Featured DevOps & Cloud Projects

Real-world microservice containerizations, multi-branch CI/CD security pipelines, and resilient production systems engineered in industry environments.

AI Microservices
Production Ready

Akunah ARYA (AI)

Enterprise AI Medical & Analytical Platform Containerization

Full-scale containerization and automated multi-branch CI/CD engineering for the ARYA AI intelligent microservice ecosystem.

Containerized full-stack application tiers encompassing React frontend, Node.js backend services, and MongoDB database clusters.
Engineered optimized multi-stage Dockerfiles, cutting image sizes by 50%+ and dramatically decreasing CI pipeline build times.
Designed and scripted declarative Jenkinsfile multi-branch pipelines tailored for dev, staging, and QA environments.
ReactNode.jsMongoDBDockerJenkinsSonarQubeTrivy ScannerNGINX
AI Microservices
Production Ready

Akunah PROMMSV2

Multi-Service Container Orchestration with FastAPI AI Inference

Containerized high-concurrency FastAPI AI services alongside React and Node.js microservices with automated security gates.

Containerized the dedicated FastAPI AI inferencing engine and decoupled full-stack React frontend and Node.js business backend.
Optimized Dockerfiles for GPU/CPU inference workloads with lean base images, minimizing cold-start latency.
Created automated Jenkins multi-branch CI/CD workflows triggering linting, unit testing, and dev branch verification.
FastAPIReactNode.jsMongoDBDockerJenkinsSonarQubeTrivy
Full-Stack DevOps
Production Ready

Plexper

Full-Stack Containerization, Reverse Proxying & Database Lifecycle

Dockerized full-stack architecture with production NGINX reverse proxy, automated MySQL migrations, and CORS resolution.

Containerized full-stack application consisting of React client, Node.js API services, and persistent MySQL database.
Configured precise container networking and isolated database access to the backend subnet only.
Diagnosed and resolved critical cross-origin resource sharing (CORS) and header mismatches across decoupled domains.
ReactNode.jsMySQLDockerDocker ComposeNGINX
Full-Stack DevOps
Production Ready

QueryFuel

FastAPI & PostgreSQL Containerized Staging with Migration Automation

Built standardized container environments for high-throughput FastAPI and PostgreSQL with automated schema transitions.

Containerized application services ensuring absolute parity across local developer environments and staging servers.
Deployed asynchronous FastAPI backend integrated seamlessly with PostgreSQL relational database.
Managed database migration sequences during application updates to protect data integrity and avoid locks.
ReactFastAPIPostgreSQLDockerDocker ComposeLinux
Distributed Systems
Production Ready

Email Monitoring Dashboard

Distributed Master-Agent Telemetry Architecture for Service Observability

Architected a scalable master-agent telemetry framework collecting distributed email service metrics into PostgreSQL.

Architected a distributed master-agent architecture to collect, aggregate, and report email delivery telemetry in real time.
Engineered lightweight agent services running on remote worker nodes streaming telemetry to central master FastAPI service.
Modeled efficient PostgreSQL relational schemas optimized for high-write telemetry ingestion and analytical dashboard queries.
HTMLFastAPIPostgreSQLDockerMicroservices Architecture
Technical Competencies & Tooling

Infrastructure & DevOps Arsenal

Over 45+ technologies mastered across AWS cloud services, containerization, GitOps orchestration, automated pipelines, and 24/7 observability.

AWS Cloud Infrastructure

10 core technologies

EC2 & Auto Scaling95%
S3 & CloudFront90%
VPC & Networking92%
IAM & Security94%
RDS & DynamoDB88%
Lambda & Serverless85%
EKS & ECS88%
CloudWatch & SNS/SQS90%
CloudFormation85%
API Gateway86%

Containers & Orchestration

5 core technologies

Docker & Multi-Stage Builds96%
Docker Compose95%
Kubernetes (K8s)88%
ArgoCD (GitOps)90%
cAdvisor85%

CI/CD & Automation

5 core technologies

Jenkins (Multibranch & Declarative)95%
GitHub Actions92%
Git & GitFlow96%
Freestyle Pipelines90%
Automated Staging & QA Deploys92%

Infrastructure as Code

4 core technologies

Terraform90%
Ansible88%
AWS CloudFormation84%
Configuration Drift Management86%

Observability & Monitoring

6 core technologies

Prometheus92%
Grafana94%
Loki (Log Aggregation)88%
Node Exporter90%
Grafana Alloy86%
AWS CloudWatch88%

DevSecOps & Security

5 core technologies

SonarQube (Static Code Analysis)92%
Trivy Container Scanner94%
Docker Scout86%
OWASP Dependency-Check85%
SSL/TLS & Edge Security90%

Web Servers & Reverse Proxies

5 core technologies

NGINX & Virtual Hosts95%
NGINX Proxy Manager92%
Cloudflare (CDN, WAF, DNS)94%
Apache HTTP Server86%
LiteSpeed & CyberPanel / CWP84%

OS & Scripting & DBs

5 core technologies

Linux Administration (Ubuntu, CentOS, RHEL)95%
Bash / Shell Scripting94%
Python Automation88%
PostgreSQL & MySQL86%
MongoDB86%
Career Journey & Track Record

Professional Experience

Proven track record of architecting high-reliability cloud systems, accelerating deployment velocity, and maintaining strict 99.9% uptime SLAs.

May 2026 – PresentCurrent Role

DevOps Engineer

Delostyle Studio Pvt. Ltd•Kolkata, West Bengal•Full-time

Leading production DevOps initiatives, infrastructure modernization, automated DevSecOps pipelines, and enterprise-grade observability.

Key Accomplishments & Impact:

Architected a high-throughput microservices layer delivering 99.9% production uptime across client workloads.
Led the migration of legacy monolithic backends to modern Node.js and Next.js services, slashing latency by 40%.
Optimized Dockerfiles across microservices repositories, achieving up to 65% reduction in container image sizes.
Designed and maintained Jenkins multi-branch and freestyle CI/CD pipelines for automated building, testing, and deployment.
Enforced security gates with SonarQube static code analysis and Trivy container vulnerability scanning in continuous delivery.
Configured robust DNS routing, automated SSL/TLS certificate renewals, and edge CDN acceleration via Cloudflare and NGINX Proxy Manager.
Constructed an enterprise observability suite incorporating Prometheus, Grafana, Loki, Node Exporter, cAdvisor, and Grafana Alloy for unified metrics and logging.
AWSDockerKubernetesJenkinsSonarQubeTrivyPrometheusGrafanaLokiCloudflareNGINX Proxy Manager
May 2025 – April 2026

Server Administrator & DevOps Engineer

Intlum Technology Pvt. Ltd•Kolkata, West Bengal•Full-time

Managed Linux server infrastructure, container deployments, GitOps Kubernetes clusters, and reverse proxy traffic routing.

Key Accomplishments & Impact:

Administered high-availability Linux production servers, overseeing system health, patch updates, and security hardening.
Engineered containerized application rollouts with Docker and managed Kubernetes clusters leveraging ArgoCD for declarative GitOps.
Built automated Jenkins CI/CD pipelines reducing deployment turnaround time from hours to minutes.
Configured NGINX reverse proxies, virtual hosts, upstream load balancing, and integrated Cloudflare CDN/SSL.
Handled automated database backups, log rotation, and server disaster recovery procedures.
LinuxDockerKubernetesArgoCDJenkinsNGINXCloudflareBash Scripting
Feb 2025 – Apr 2025

DevOps Trainer

Shamgar Software Solutions•Hyderabad, Remote•Contract

Trained aspiring cloud engineers on modern Linux systems, containerization, Git workflows, and CI/CD pipelines.

Key Accomplishments & Impact:

Delivered hands-on practical training covering Linux system administration, Git & GitHub workflows, Docker, Kubernetes, CI/CD, and AWS fundamentals.
Designed real-world containerization and pipeline troubleshooting lab exercises for engineering batches.
Guided students through container security best practices and production infrastructure deployment principles.
LinuxGitDockerKubernetesAWS CloudCI/CD FundamentalsMentorship
Industry Credentials

Verified Certifications

Accredited certifications proving rigorous real-world competency across AWS cloud architecture and modern DevOps engineering.

AWS Certified Solutions Architect – Associate

Intellipaat / AWS Curriculum

Verify Credential

Validation of comprehensive expertise in designing secure, resilient, high-performing, and cost-optimized cloud architectures on Amazon Web Services.

AWS VPC & SubnettingEC2, Auto Scaling & ELBS3, Glacier & EFSIAM, KMS & Security GroupsRDS, DynamoDB & ElastiCacheLambda, SQS & SNS Event-Driven ArchitectureHigh Availability & Disaster Recovery

Advanced Certification in Cloud Computing & DevOps

iHUB DivyaSampark, IIT Roorkee | Skill India & NSDC

IIT Roorkee VerifySkill India | NSDC Certificate

Prestigious executive certification in enterprise cloud computing, container orchestration, GitOps automation, and Infrastructure as Code from IIT Roorkee's iHUB DivyaSampark, recognized by Skill India and the National Skill Development Corporation (NSDC).

Production Kubernetes OrchestrationInfrastructure as Code with Terraform & AnsibleJenkins CI/CD & Automated DeliveryDevSecOps (SonarQube & Vulnerability Auditing)Microservices Observability & MonitoringCloud-Native Distributed Architecture
Academic Background

Education

Engineering foundation in Electrical and Computing Systems.

2012 – 2016CGPA / DGPA: 7.52 / 10.0

Bachelor of Technology (B.Tech) – Electrical Engineering

SDET Brainware Group of Institutions / Maulana Abul Kalam Azad University of Technology (WBUT)

Studied engineering mathematics, digital systems, control theory, and computing fundamentals.

2008 – 2010Percentage: 65%

Higher Secondary (Class XII) – Science

Howrah Zilla School (WBCHSE)

Major coursework in Physics, Chemistry, Mathematics, and Computer Science.

2007 – 2008Percentage: 80.62%

Secondary Education (Class X)

Tenpur Nabasan Anantaram High School (WBBSE)

Foundational education in General Sciences, Mathematics, and Languages.

Get In Touch

Let's Build Resilient Infrastructure Together

Whether you are looking for a full-time Cloud/DevOps Engineer, infrastructure automation, or technical consulting, I'd love to connect.

Contact Information

Direct Email
souravhajra123@gmail.com
Phone & WhatsApp+91 87092 80912
Location

Howrah / Kolkata, West Bengal, India

Professional Profiles:
GitHubLinkedIn
Download Official Documents:
Resume (PDF)

Send a Direct Message

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