SAYAJI CHAVAN

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

Senior Software Engineer with 4+ years of experience in DevOps and backend engineering on AWS. Experienced in designing cloud architecture, building automated CI/CD pipelines and Terraform/CDK infrastructure, and operating production Kubernetes. On the backend, specialized in developing high-throughput APIs and event-driven microservices in Python with a strong focus on system reliability and security.

Technical Skills

Cloud Platforms:

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

IaC & Orchestration:

Terraform, AWS CDK, CloudFormation, Liquibase, 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

Senior Software Engineer Jul 2024 – Present

Everstek Technosoft Solutions Remote

Provisioned 3-tier cloud infrastructure using Terraform on AWS, leveraging VPC, ALB, ECS, EKS, RDS, and S3.
Designed and shipped a serverless, event-driven document-processing pipeline on Lambda, API Gateway, DynamoDB, S3, SNS, Textract, and Bedrock, defined end-to-end in AWS CDK.
Led the migration of legacy Terraform infrastructure to AWS CDK, creating a reusable module library that cut environment provisioning time from days to hours.
Built Observability-as-Code in New Relic using AWS CDK, establishing dashboards and SLO-tied alerting across SQS, Step Functions, Lambda, and API Gateway.
Owned end-to-end provisioning of an ML Sandbox platform on AWS SageMaker with VPC isolation, custom Docker images, IAM RBAC, and least-privilege Jupyter access for customer PII.
Supported client data pipeline operations using Apache Airflow for DAG workflow orchestration and task scheduling.
Reduced EKS compute costs by 60-70% through Karpenter-based autoscaling, automated off-hours scale-downs, and Spot capacity.
Deployed AWS GuardDuty, Security Hub, Config, and WAF with real-time Slack alerts, alongside Falco runtime monitoring and ELK log analytics for EKS audit logs.
Automated security scanning across CI/CD pipelines using Trivy, Snyk, and OWASP ZAP to detect and remediate vulnerabilities before deployment.

Software Engineer Nov 2021 – Jul 2024

Everstek Technosoft Solutions Remote

Led (as module lead) an event-driven architecture processing 5,000+ concurrent updates per minute with sub-second propagation, built on microservices and distributed message queues.
Re-engineered a legacy healthcare backend in FastAPI with full unit-test coverage, halving form-processing time and cutting maintenance costs by ~40%.
Built the backend for a FinTech platform on AWS ECS with RDS and OpenSearch, serving 1,000+ daily active users through event-driven SQS and Lambda processing.
Provisioned the full AWS foundation for a large-scale Super App from scratch with Terraform and AWS CDK, covering VPC subnetting, compute, databases, and load balancing.
Built CI/CD pipelines (GitHub Actions with OIDC, CircleCI, CodePipeline) with blue-green deployments, added semantic-release for automated versioning and changelogs, and automated PostgreSQL provisioning with Terraform.
Standardized database schema lifecycle management using Liquibase in CI/CD pipelines, enabling zero-downtime database migrations across environments.
Developed EdTech admin-portal microservices with REST APIs backed by an indexed PostgreSQL schema.

Certifications & Education

AWS Certified DevOps Engineer | Solutions Architect Associate

University of Mumbai B.Sc. in Information Technology

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