Senior DevOps Engineer with Cloud & CI/CD Expertise

Harish Kalahasti

Sr DevOps Engineer

+1-203-***-**** ***************@*****.*** Linkedln USA

PROFESSIONAL SUMMARY

Certified DevOps Engineer with over 7+ years of experience in supporting, automating, and optimizing mission-critical deployments in AWS and Azure, leveraging configuration management, CI/CD, and DevOps processes. Seeking opportunities to leverage DevOps culture, cloud technologies, software development, and automation skills in a collaborative environment.

PROFESSIONAL EXPERIENCE

3E April 2025 - Present

Sr DevOps Engineer

Implemented GitHub Copilot and GitHub Actions for AI-driven code suggestions, automating CI/CD workflows, and streamlining development processes. Leveraged Copilot to boost code productivity and enhance code quality through intelligent recommendations.

Utilized Jenkins, GitLab CI, and AWS CodeBuild to design, implement, and maintain optimized CI/CD pipelines. Integrated containerized applications using Docker and Kubernetes, ensuring rapid and consistent deployment cycles across multiple environments.

Designed build plans, assisted developers with failure resolution, managed software configurations, and ensured end-to-end automated testing and continuous deployments succeed.

Designed proof of concepts and implemented auto scaling on various AWS resources like Auto Scaling Groups (ASG) for EC2, ECS tasks, and Aurora RDS instances using Lambda with various scaling policies.

Set up monitoring and alerting using AWS CloudWatch and Prometheus, enabling proactive detection and resolution of performance bottlenecks. Integrated centralized logging and monitoring dashboards with Grafana and Splunk, enhancing system observability and reducing downtime.

Integrated security checks into CI/CD pipelines using tools like SonarQube, AWS Security Hub to ensure vulnerability detection and compliance adherence early in the development lifecycle.

Set up comprehensive monitoring and alerting using AWS CloudWatch and Prometheus, enabling proactive detection and resolution of performance bottlenecks. Integrated centralized logging and monitoring dashboards with Grafana and Splunk, enhancing system observability and reducing downtime.

Athenahealth technologies PVT Ltd Nov 2021 – Dec 2023

Sr Cloud DevOps Engineer

Implemented GitOps workflows using ArgoCD and Flux for automated, version-controlled Kubernetes deployments, while configuring secure Dockerfiles for .NET and Java applications, pushing images to Azure Container Registry, and deploying via Azure Web Apps and AKS.

Developed Infrastructure as Code (IaC) solutions using Terraform modules, CloudFormation templates, and Ansible playbooks to automate provisioning, configuration management, and repeatable environment builds across Azure, with reusable modules and managed state for consistency.

Built Docker containers and Kubernetes clusters for pre-production testing, designed build plans, resolved failures, and ensured end-to-end automated testing and continuous deployments were successful.

Integrated Jenkins with Azure DevOps Repos/Pipelines to enable smooth deployments with gated approvals and implemented blue/green and canary deployments via AKS/EKS pipelines (GitHub Actions, Jenkins, GitLab CI), optimizing resources and reducing cloud costs by 20–25%.

Configured RBAC, network policies, and secrets management in Kubernetes, while integrating Prometheus, Grafana, Splunk, and AWS CloudWatch for proactive monitoring, centralized logging, and improved observability.

Designed and implemented hybrid multi-cloud architectures across AWS and Azure, enabling seamless workload migration, disaster recovery, and high availability. Leveraged Terraform Cloud, Ansible, and Kubernetes (EKS, AKS) for consistent, automated deployments across environments.

Architected and deployed Azure cloud solutions using AKS, App Services, Functions, and Azure Container Registry, integrating Azure DevOps Pipelines for CI/CD, Azure Key Vault for secrets management, and Azure Monitor for end-to-end observability and compliance.

Pragmatic Solutions Nov 2018 – Oct 2021

DevOps Engineer

Mainly our team has divided between value streams like core, offering, trading, B2B, and B2C and helping developers to support their applications and infrastructure.

Worked on GitHub management and merging to facilitate collaboration between development teams and configured webhooks for push events on GitHub to trigger a build automatically on Jenkins.

Managed. Net core and Windows services, and I am mainly responsible for maintaining test environments for a great variety of applications like Windows server services and IIS applications and checking the event logs and config files when deploy has an issue.

Wrote Terraform scripts and used CloudFormation to automate infrastructure provisioning in AWS—managing VMs, EKS clusters, NSGs, and web apps with reusable modules and secure state handling.

Involved in evaluating the performance of AWS EC2 instances CPU, memory usage, network usage, and additional vital metrics using Cloud Watch.

Built and deployed Docker containers to break up monolithic apps into Microservices, improving developer workflow, increasing scalability, and optimizing speed.

Configure and maintain applications to run on AWS resources to increases availability and reduces risk by applying Autoscaling and Blue/Green architecture.

Accenture July 2017 – Oct 2018

Jr System Administrator

Configured, managed, and monitored Windows and Linux servers across on-prem, AWS, and Azure cloud environments using tools like Azure Monitor, AWS CloudWatch and Log Analytics to ensure high availability, optimal performance, and minimal downtime.

Planned and executed regular system updates, patches, and upgrades to safeguard against vulnerabilities and enhance system stability.

Created and maintained user accounts, permissions, and access rights via Active Directory and IAM tools, enforcing least-privilege policies.

Providing AWS accounts to the team and restricting their access to resources with policies in IAM.

Developed and maintained automation scripts using PowerShell, Bash, and Azure CLI to streamline server provisioning, patching, and monitoring tasks, boosting system admin efficiency across hybrid environments.

Configured and secured network equipment, including routers, switches and firewalls (Cisco), enabling robust and segmented network architectures.

EDUCATION

Master of Science : MSc Computer Information Systems Rivier University, USA

Bachelor of Technology : Computer Science and Engineering Jawaharlal Nehru Technological University, India

EXPERTISE

Programming Languages: Basics in C# with ASP.NET, Java with Spring and Spring Boot, C, and Python.

Tools and Technologies: SQL Server Management Studio, Git, Ansible, Azure DevOps, Jenkins, GitLab, Amazon Web Services, Docker, Kubernetes, Helm, GitHub Copilot, Terraform, Windows, LINUX, Groovy, MySQL, SonarQube, Splunk, Grafana, Elasticsearch.

AWS: EC2, S3, VPC, Auto-Scaling, Load Balancer, AWS IAM, Cloud Formation, SSL Certification, Route 53, EKS, AWS Lambda, RDS, Cloud Front, Cloud Watch, Code Deploy.

Azure: App Services, Key Vault, Function App, Blob Storage, Azure Active Directory (Azure AD), Azure Container Registry (ACR), Azure Kubernetes Service (AKS), Azure DevOps, ARM Templates, Load Balancer, Azure CLI.

GCP: Compute Engine, Cloud Storage, VPC, IAM.

Relevant Skills: Networking Models, Problem Solving, Software Development, Automation, Infrastructure.

CERTIFICATIONS

Microsoft Certified: Azure Developer - Associate

Microsoft Certified: DevOps Engineer - Expert

AWS Certified: Solutions Architect - Associate

Academy Accreditation - Databricks Fundamentals, VPC, Auto-Scaling, Load Balancer, IAM, Cloud Formation, SSL Certification, Route 53, EKS, Lambda

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