GKGulshan Kumar

About Me

GK

Gulshan Kumar

DevOps Engineer (Level 1)

DevOps Engineer with 2+ years of experience automating, deploying, and securing cloud infrastructure on AWS. Proficient in containerization, CI/CD, monitoring, and cost optimization. Successfully implemented Blue-Green Deployments, AWS WAF security policies, and APM for zero-downtime releases. Demonstrated full ownership by leading solo DevOps operations, ensuring system reliability and scalability.

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Work History

Experience

DevOps Engineer (Level 1)

Onsurity Technologies Pvt. Ltd.

Nov 2023 – Present

Bengaluru, India

  • Automated AWS infrastructure (EC2, RDS, S3) using Bash and Python Boto, reducing cloud costs by 20%.
  • Took full solo ownership of DevOps during team transition — managed infra, CI/CD, deployments & monitoring, maintaining 99.9% uptime.
  • Optimized GitHub Actions CI/CD pipelines, cutting runtime by 50% and deployment time by 30%.
  • Implemented Blue-Green Deployments with APM — achieving zero-downtime releases and improving incident response by 30%.
  • Configured AWS WAF with rate limiting, geo-blocking, and IP rules — mitigating OWASP Top 10 and DDoS threats.
  • Integrated SonarQube for DevSecOps, reducing critical vulnerabilities by 50% and improving code quality compliance.
  • Introduced Terraform IaC, standardizing AWS provisioning and improving reproducibility.
  • Implemented monitoring with Prometheus, Grafana, and APM for end-to-end visibility.
  • Containerized MySQL, PostgreSQL, MongoDB, Redis, Elasticsearch using Docker — improving performance 20% and cutting EC2 costs 25%.
  • Automated Elasticsearch log rotation, reducing storage costs by 30%.
  • Contributing to Docker Swarm → AWS EKS migration, improving scalability and observability.

Capabilities

Skills

Cloud & Containers
AWS EC2AWS RDSAWS S3AWS EKSAWS WAFDockerKubernetesGCP
CI/CD & DevSecOps
GitHub ActionsSonarQubeBlue-Green DeploymentPipeline Optimization
Monitoring & Observability
PrometheusGrafanaAPMElasticsearchELK Stack
Scripting & Automation
BashPythonPython Boto3AWS CLIkubectl
IaC & Tools
TerraformHelmDocker HubGitHubAWS CLI
Disaster Recovery
AWS BackupRDS SnapshotsMongoDB BackupGitHub DRBash Automation

Academic

Education

SRM University

B.Tech — Computer Science Engineering

2019 – 2023

CGPA: 8.26 / 10

Uchh Vidyalaya

AISSCE (Class XII)

–

Percentage: 72%

Credentials

Certifications

☁️
AWS Cloud Practitioner
2023
⚙️
AWS DevOps on AWS
2022
🔧
Google IT Support
2021
🐧
Linux Fundamentals
2022