Rathinavelkumar Murugan

Summary

Results-driven technology leader with 8.5+ years of experience in building scalable backend systems, cloud-native architectures, and DevOps automation. Deeply proficient in designing robust, high-performance infrastructure on AWS using Terraform, Puppet, and Docker along with extensive Python backend engineering. Proven track record in architecting fault-tolerant systems, optimizing resources, and mentoring high-impact teams—all geared towards operational excellence and rapid product delivery. Passionate about solving complex problems with innovative technical solutions that drive measurable business outcomes.

Core Skills

Professional Experience

Lead Software Developer | Athenahealth Technology

Jul 2022 – Present

• Cloud Migration & Infra Modernization: Led migration of Bitbucket Data Center to AWS using Terraform IaC, reducing errors and boosting efficiency by 50%.

• Resiliency & Disaster Recovery: Designed automated backup and restore processes with high-availability architecture to ensure data integrity and minimal downtime during system failures.

• CI/CD Optimization: Standardized Git branching and unified CI/CD pipelines, swift accelerating release cycles and elevating overall code quality with sonarqube integration.

• Team Leadership: Mentored junior engineers and led rigorous code reviews, fostering a strong Agile culture that steadily drove team excellence.

• Cost Optimization: Streamlined AWS resource utilization via rightsizing and proactive monitoring, achieving a 20% reduction in compute and storage costs.

Key Technologies: AWS, Terraform, Puppet, Bitbucket, Java, OpenSearch, SonarQube

Software Developer | CBTS Technology Solutions

Feb 2021 – Jul 2022

• Dashboard Development: Engineered a TCO Dashboard using Python, MySQL, and Tableau to consolidate cost data from 7+ systems for strategic decisions.

• Compliance & Audit Automation: Developed a Compliance Dashboard that automated data aggregation, slashing audit turnaround by 40% and boosting regulatory transparency.

• Monitoring Enhancements: Integrated the ELK stack for real-time log analytics and automated alerts, enabling proactive incident detection and quicker resolutions.

Key Technologies: Python, MySQL, Tableau, ELK Stack, ServiceNow

Associate – Automation Engineer | Cognizant Technology Solutions

Dec 2016 – Feb 2021

• Process Automation: Automated various web and SAP workflows using Python, Selenium, and Protractor, reducing manual QA effort by 50% and expediting test cycles.

• Internal Tools: Developed Flask dashboards with RESTful APIs and MySQL to streamline operations and enhance cross-team collaboration.

• CI Framework Development: Designed a CI framework using TCShell and TOSCA that significantly increased test coverage and accelerated execution speed.

Key Technologies: Python, Flask, Selenium, Protractor, MySQL, TOSCA

Key Projects

🏗️ Infrastructure as Code (IaC) Modernization

Migrated Bitbucket Data Center’s legacy IaC from Sparkle Formation to Terraform. Established modular configurations that improved deployment efficiency by 50% and enabled ~$1000/year cost savings.

🛡️ Bitbucket Disaster Recovery Modernization

Redesigned AWS Backup Manager infrastructure to support snapshot/restore-based disaster recovery. Developed IaC from scratch using Terraform to enable DR testing for microservices, safeguarding against data loss and ensuring compliance.

🛠️ Perforce Infrastructure Migration to Oracle Linux 8

Executed a zero-downtime migration of the Perforce infrastructure, transitioning to Oracle Linux 8 and hosting on a virtualized environment. Authored comprehensive SOPs to ensure future scalability and operational agility.

🌍 HITRUST Disaster Recovery Testing for Bitbucket

Led disaster recovery testing in a sandbox setup across AWS regions. Defined recovery time and point objectives, strengthening compliance and audit readiness.

🚀 Bitbucket Upgrade and Puppet Module Rewrite

Managed end-to-end upgrades including Bitbucket LTS, Java, operating system upgrades, and transition from Elasticsearch to OpenSearch—along with rewriting Puppet modules to ensure compatibility and boost system stability.

🔍 Bitbucket Metrics Extraction Plugin Development

Developed a plugin that captured development metrics and seamlessly migrated data from bitbucket to Snowflake, enhancing real-time insights and resource planning for engineering teams.

📊 TCO & Compliance Dashboards

Built dashboards integrating data from CHEF, VROPS, and ServiceNow. Enhanced financial forecasting, audit readiness, and operational transparency through intelligent, real-time visualizations.

Certifications

• Core Python – Cognizant / HackerRank Certified
• TOSCA AE1 – Tricentis Certified Automation Engineer
• Core Java – Cognizant Certified Professional

Notable Achievements

• 🏆 Recognized by clients for automation during cloud migration, accelerating delivery by 40%.
• 💰 Reduced AWS infrastructure cost via custom Terraform modules and resource tuning.
• 👨‍💻 Ranked Top 25% in HackerEarth Leaderboards (DSA: #62,576, Algo: #20,355, Basic Prog: #7,536).
• 👥 Led a 5-member team, ensuring code quality and on-time delivery.
• 🔄 Proactively upskilled in new technologies to support delivery on evolving project scopes.

Education

• Bachelor of Engineering (BME) - PSNA College of Engineering & Technology | 2016
• Higher Secondary (H.S.C) – H.D.I Jain Matric Hr. Sec School | 2012
• Secondary School (S.S.L.C) – B.M.S Vidhyalaya Matric School | 2010