Sumit Roy

DevOps Engineer

Kolkata, West Bengal, India2 yrs experience

Key Highlights

Reduced AWS costs by 45% in four weeks.
Improved deployment speed by 60% through VPC redesign.
Implemented observability stack, decreasing MTTR by 40%.

Stackforce AI infers this person is a Cloud Infrastructure and DevOps expert specializing in AWS and Kubernetes.

Contact

Skills

Core Skills

Cloud InfrastructureDevopsMonitoring

Other Skills

AWSAmazon CloudFrontAmazon EC2Amazon EKSAmazon VPCAmazon Web Services (AWS)Apache DruidApache2BashCI/CDCircleCICloud ServicesCluster ManagementConfluenceContinuous Integration and Continuous Delivery (CI/CD)

About

Hi, I’m Sumit Roy — someone who enjoys building systems that work smoothly, scale efficiently, and recover intelligently. My journey in DevOps and Site Reliability Engineering started with a deep interest in automation and has evolved into a passion for designing resilient infrastructure that supports real-world applications.I’ve worked across AWS cloud and hybrid environments, where I’ve set up secure infrastructure using Terraform and Terragrunt, automated deployments with Jenkins, ArgoCD, and Helm, and containerized environments using Kubernetes and Docker. Whether it’s troubleshooting a production outage, building a GitOps pipeline, or writing a Kubernetes Operator in Go — I like being hands-on and solving challenges that have impact.🚀 Key Expertise☁️ Cloud Platforms: AWS (EKS, EC2, RDS, IAM, VPC), GCP🔧 IaC & Automation: Terraform, Terragrunt, Python⚙️ CI/CD : Jenkins🐳 Containers: Docker, Kubernetes, Helm, Karpenter, Operator SDK📈 Monitoring & Observability: Prometheus, Grafana, ELK, PagerDuty🔐 Security & Policy: Kyverno, Kubeaudit, Trivy, PSA/PSS💻 Scripting: Python, YAML, Boto3Currently exploring Fastapi, MCP servers, RAG, Langchain, Huggingface, ollamaLet’s connect! Feel free to DM me here

Experience

2 yrs

Total Experience

1 yr

Average Tenure

Current Experience

Hyland

Cloud Solution Specialist

Jun 2023 – Dec 2024 · 1 yr 6 mos · Greater Kolkata Area · Remote

⦁ Resolved EKS pod scheduling and IP exhaustion issues by redesigning the VPC with secondary CIDRs and prefix delegation, improving deployment speed by 60%.
⦁ Reduced AWS monthly infrastructure costs by 45% (~$2.5K savings) within 4 weeks by analyzing EC2 performance metrics, right-sizing Intel-based instances, migrating low-utilization workloads to AMD-based alternatives, cleaning up unused EBS volumes and Elastic IPs, and implementing basic scaling policies across Auto Scaling Groups
⦁ Migrated legacy VM-based services to Kubernetes, integrating Istio for hybrid connectivity between on-prem and cloud workloads, resulting in more stable and scalable architecture.
⦁ Automated deployment workflows using Jenkins, Helm, and ArgoCD, introducing blue-green and canary strategies that reduced deployment risk and improved release frequency.
⦁ Implemented observability stack using Prometheus, Grafana, and PagerDuty with SLO-based alerts, decreasing MTTR by 40% and improving incident visibility across teams.
⦁ Introduced HPA, VPA, and Karpenter for efficient autoscaling, reducing compute costs and eliminating overprovisioned workloads.
⦁ Hardened cluster security with RBAC, IRSA, Kyverno, PSA/PSS, and Network Policies, reducing configuration drift and improving compliance posture.
⦁ Led production on-call rotations, managed high-severity incidents, and contributed to detailed RCAs, helping maintain 99%+ uptime for critical services.
⦁ Supported zero-downtime upgrade of RDS MySQL databases using a blue-green approach, ensuring data integrity and zero customer impact.

AWSTerraformJenkinsKubernetesPrometheusGrafana+7

Texple

DevOps Engineer

Nov 2022 – Jun 2023 · 7 mos · Mumbai, Maharashtra, India · On-site

⦁ Architected and deployed secure, multi-account AWS infrastructure using Terraform and Terragrunt, creating reusable modules for VPCs, NAT Gateways, Transit Gateways, and IAM roles. Reduced infra setup time by 50% and eliminated duplication across environments.
⦁ Established hybrid network connectivity by implementing AWS PrivateLink and Site-to-Site VPN, allowing secure access to internal services without public exposure. Integrated NLB-backed VPC endpoints for private API delivery.
⦁ Designed, upgraded, and managed high-availability Kubernetes clusters (EKS) with best practices: multi-AZ node groups, PodDisruptionBudgets, custom taints/affinities, and control plane upgrades.
⦁ Wrote Python scripts using Boto3 for automating tasks like EC2 lifecycle management, log rotation, and S3 archival. Optimized idle resource usage and reduced unnecessary cloud spend.
⦁ Containerized and deployed microservices using Helm charts and GitOps workflows. Introduced dynamic scaling with HPA and rollout strategies to ensure zero-downtime releases.
⦁ Developed Kubernetes Operators in Go using Operator SDK and Helm to manage lifecycle of Apache Druid and Memcached clusters — automating provisioning, scaling, health checks, and failovers.
⦁ Implemented CI/CD pipelines in Jenkins with integrated code quality checks (SonarQube), container security scans (Trivy), and artifact publishing flows. Streamlined build-test-release cycles.
⦁ Enhanced security posture by applying IAM least privilege principles, audit logging, and image scanning in CI/CD pipelines. Conducted regular drift detection and compliance checks.
⦁ Collaborated with Dev teams to resolve environment issues, supported QA with stable test infrastructure, and led knowledge-sharing sessions to boost cross-team DevOps adoption.

TerraformAWSKubernetesPythonHelmCI/CD+3

Goldman sachs

engineering virtual program

May 2021 – May 2021 · 0 mo · India

done my practical work on cracking leaked password from database module during this internship , changed policy and made changes on the database as per the database weaknesses