SAYAJI CHAVAN

Mumbai, India sayaji.dev@hotmail.com +91 9892200636 LinkedIn GitHub

Senior Software Engineer with over 3.5 years of experience in architecting scalable multi-cloud infrastructure (AWS, Azure, GCP), automating high-velocity CI/CD pipelines, and leading engineering teams. Expert in Kubernetes, Terraform, and GitOps. Proven track record in collaborating with CTOs to align infrastructure with business goals, achieving 35%+ cost reduction and 99.9% system availability.

Technical Skills

Cloud Platforms:

AWS (EKS, Lambda, SageMaker, Bedrock), Microsoft Azure, Google Cloud (GCP)

IaC & Orchestration:

Terraform, AWS CDK, CloudFormation, Kubernetes (EKS/GKE), Helm, Docker-compose

CI/CD & GitOps:

GitHub Actions (OIDC), ArgoCD, BitBucket Pipeline, Jenkins, GitLab CI/CD

Observability Stack:

Prometheus, Grafana, Loki, Mimir, Thanos, ELK Stack, New Relic, Site24x7

DevSecOps:

SonarQube, Trivy, Snyk, Hashicorp Vault, AWS WAF, Security Hub, IAM OIDC

Languages:

Python (FastAPI, Django), Go, Bash, SQL, YAML

Professional Experience

Lead DevOps Engineer & Team Lead Jul 2024 – Present

Everstek Technosoft Solutions Mumbai, India

Team Leadership: Manage a team of engineers and oversee customer cloud accounts, collaborating directly with CTOs to design infrastructure roadmaps that support 100k+ daily Gen-AI records.
Multi-Cloud Strategy: Architected and automated cross-provider infrastructure using Terraform and AWS CDK, enabling seamless transitions between AWS, Azure, and private cloud environments.
Advanced Observability: Integrated a full-stack monitoring system using Prometheus, Loki, and Mimir to gain real-time insights into EKS clusters, reducing incident response time by 45%.
DevSecOps Integration: Implemented automated security scanning (Trivy, SonarQube) and eliminated static credentials by enforcing GitHub OIDC and Hashicorp Vault.
Cost Management: Optimized multi-tenant cloud architectures, achieving a 35% reduction in OpEx through auto-scaling, spot instance orchestration, and workload rightsizing.

Software & DevOps Engineer (Module Lead) Nov 2021 – Jul 2024

Everestek Technosoft Solutions Mumbai, India

Container Orchestration: Managed large-scale production deployments on Amazon EKS and ECS, utilizing Helm and ArgoCD for GitOps-based continuous delivery.
High-Availability Architecture: Engineered a real-time event-driven engine for 5,000+ live bus nodes using AWS SQS and the Observer pattern, ensuring 99.9% uptime for telemetry processing.
Migration & Modernization: Led the refactoring of legacy monolithic systems into FastAPI microservices, resulting in a 2x increase in API throughput and 40% lower maintenance costs.
Database Automation: Standardized database lifecycle management using Liquibase, ensuring zero-downtime schema migrations across all environments.
Pipeline Automation: Built custom CI/CD workflows for FinTech applications with Blue-Green and Canary deployment patterns to ensure risk-free releases.

Key Projects & Impact

Scalable ML Sandbox: Provisioned an isolated AWS SageMaker environment with VPC hardening to allow secure model training on PII data, complying with global data privacy standards.
Serverless Data Pipeline: Developed a high-performance Python-based pipeline using Lambda, Kinesis Firehose, and S3 to automate data extraction from external APIs into AWS RDS.
Static Site IaC: Engineered a secure, serverless resume platform using AWS CDK, incorporating CloudFront, Route53, and a Lambda-based visitor counter with 100% automated provisioning.

Certifications & Education

AWS Certified DevOps Engineer – Professional | Solutions Architect Associate

Certified Kubernetes Administrator (CKA) | Terraform Associate (HashiCorp)

University of Mumbai B.Sc. in Information Technology

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