Hariharan Nagarajan

Background

About Hariharan Nagarajan

Professional Summary 20+ years of software development experience with top networking product companies.Committed team player passionate about learning new technology. Go getter and get things done which matters for Product. Engage responsibly in product Design, Review, Integration and Deployment. Experience with Scale Optimization, Performance Tunings in distributed systems. Strong Problem Solving and Troubleshooting skills Education BE, Computer Science, GCT, Bharatiyar University, Coimbatore, India - May 2004 Professional Experience Principal Cloud Developer HPE Aruba Networks, Chennai, India | Nov 2014 – Aug 2024 • Brought Observability on resource usage for applications to optimize resource provisioning and saving • Lead Running Scrum activity to plan, commit and deliver features in sprint for the team • Gatekeeper and Engineering Lead for Cassandra DB managing scale of 500+nodes • DB Review schema for scale and optimize config for cost • Lead 10+ features including Localization, Dashboards, Labels, New device onboarding, Authentication, RBAC and integrations with external systems • Contributed to 500+ issues/tasks to improvise Product quality/ features for app which manages millions of devices in cloud • Key Player key role in product evolution with architecture and scale of managed devices from 2k -> 3Million+ over 10 years Technical Leader HCL Cisco – Chennai, India | July 2004 – Nov 2014 • TV VOD distribution, recording and streaming system with high performance networking and QOS. • Implement ATIS standard protocol for streaming in kernel modules and quality improvements by fixing issues • Worked on platform features related to network interfaces and net filter /packet mangling in kernel modules. • CLI backend development • Delivered features for Streaming solution with WMT/RTSP and live feed distribution • Developed features in Content Acquisition/Crawling using various protocols http/https/ftp/SMB/CIFS intelligent distribution to edge nodes for content preloading. SKILLS Languages: C /C++/Python/Java/Shell Basic Proficiency: React/Scala/HTML/CSS S/W Engineering: Coding, Design, Code Review, Troubleshooting, Problem Solving, Documentation and Knowledge sharing and Agile Database: Postgres/Cassandara/Elasticsearch/GraphQL/SQL Distributed Applications: RMQ/Kafka/Spark/Redis Tools: New Relic, Prometheus, Grafana, ELK, JIRA, Confluence, Git, Jenkins CI/CD Frameworks: Flask, Spring boot, Streams Cloud: K8S/Docker/Microservices/AWS/AZURE/ Rest API and Gateways