Summary
Overview
Work History
Education
Skills
Timeline
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Krishna Madhavan

Senior Software Engineer
Chennai

Summary

Covering the full spectrum of Software Development as in Frontend, Backend, Project planning, Database schema design, DevOps, and CI/CD. Managing all development related activities & teams. Reporting directly to CTO/CEO. Senior Software Engineer with 7+ years experience in managing multi-functional local/distributed teams, for faster execution and time-to-delivery.

Overview

8
8
years of professional experience

Work History

Senior DevOps Engineer

World Health Organization
07.2022 - Current
  • Successfully migrated OpenShift cluster from version 4.8 to 4.14 without impacting production-grade systems and zero data loss.
  • Configured CI/CD setup using Jenkins & ArgoCD in a microservices architecture environment.
  • Implemented monitoring & alerting using Prometheus and Grafana in OpenShift cluster.
  • Installed and configured Velero for automated backup of Kubernetes resources, focusing on PVCs.
  • Implemented autoscaling for applications and clusters to optimize resource usage.
  • Deployed multiple clusters across different data centers to reduce latency and managed configuration repositories for various environments (Dev, UAT, Stage).
  • Ensured compliance with European security standards like GDPR using Advanced Cluster Security.
  • Managed Microsoft Azure resources including ARO, databases, and storage accounts, connecting securely via private endpoints to cluster.
  • Configured Microsoft Defender for Cloud to enforce security compliance and align with security recommendations.
  • Upgraded Azure MySQL servers from version 5.7 to 8.0 with minimal downtime (seconds to a minute) and zero data loss.

Senior Software Engineer

World Health Organization
07.2020 - 06.2022
  • Spearheaded architecture and development of backend systems and APIs for the COVID-19 application, prominently featured by WHO Academy.
  • Identified and evaluated an optimal open-source LMS system for our e-learning platform, establishing it as the foundational core for future system expansions.
  • Implemented a micro-services architecture, leading the team in creating multiple backend services that extend platform functionality via REST APIs.
  • Integrated third-party APIs to enrich application capabilities, elevating user engagement and satisfaction.
  • Revamped legacy code, enhancing maintainability and facilitating seamless future enhancements.
  • Facilitated a culture of continuous improvement through regular code reviews and feedback sessions within the team.
  • Developed modular, reusable code libraries to streamline development across various projects.
  • Developed Helm Charts for each microservice to facilitate seamless deployment within Kubernetes/OpenShift environments, ensuring scalability and reliability across the platform.
  • Created and maintained comprehensive documentation of backend architecture, simplifying onboarding for new developers and supporting future project evolution.
  • Implemented proactive monitoring tools such as Sentry and Datadog to preemptively identify and resolve potential issues.
  • Established robust communication between frontend and backend systems via well-defined API endpoints adhering to RESTful principles.
  • Executed thorough unit tests to ensure extensive code coverage and maintain code quality standards.

Python Software Developer

Adityavani Infosystems
07.2018 - 06.2020
  • API Development: Developed scalable, reusable code in REST architecture using Django REST Framework to expose APIs to be consumed by web and mobile applications. Followed standard procedures for development like 12-factor app methodology.
  • Frontend Development: Development of complete web applications using frontend frameworks such as Vue, jQuery, Javascript. Created Responsive designs to render web pages uniformly and seamlessly in desktop, tablet, mobile.
  • Redesigned Source Control and CI/CD Pipelines: Created a very flexible, integrated and secured new system with automated pipelines via a combination of GitLab CI/CD and fully operational Dev/Test/Stage/Prod data and role separation.
  • Technical Lead: Determine and define project scope and objectives. Developed and managed a detailed project schedule and work plan. Provided project updates on a consistent basis to various stakeholders about strategy, adjustments, and progress. Managed contracts with vendors and suppliers by assigning tasks and communicating expected deliverables.

Junior Python Django Developer

BillionTags Creations
06.2016 - 06.2018
  • Junior Database Architect: Develop data models for applications, metadata tables, views or related database structures. Design databases to support business applications, ensuring system scalability, security, performance and reliability.
  • Collaborate with system architects, software architects, design analysts, and others to understand business.
  • Junior Python Backend Developer: Experienced in writing server side scripts and web development using Python/Django and developing Django-based applications.
  • Moreover has integrated applications with full-text search engines(Solr, Elasticsearch, Whoosh), Celery, caching (Redis, Memcached etc), REST API, Git, unit-testing , Selenium, AWS (EC2, S3, RDS etc), external API integration (social media login, payment gateway etc).

Education

Master of Technology - Software Engineering

Birla Institute of Technology And Science
Pilani, India
07.2024

Bachelor of Engineering - Electronics And Communications Engineering

Anna University
Chennai, India
05.2016

Skills

    Java & Spring

    Python & Django Framework

    Cloud - AWS & Azure

    Javascript - jQuery, Nodejs, Vuejs

    Cloud-native - Docker, Kubernetes, OpenShift, Helm, Kustomize

    CI/CD - Jenkins, Travis CI, ArgoCD, SonarQube

    System Design - Micro-services, Distributed Tracing, Distributed Caching

    Databases - MySQL, PostgreSQL, MongoDB, Redis, Memcache

Timeline

Senior DevOps Engineer

World Health Organization
07.2022 - Current

Senior Software Engineer

World Health Organization
07.2020 - 06.2022

Python Software Developer

Adityavani Infosystems
07.2018 - 06.2020

Junior Python Django Developer

BillionTags Creations
06.2016 - 06.2018

Master of Technology - Software Engineering

Birla Institute of Technology And Science

Bachelor of Engineering - Electronics And Communications Engineering

Anna University

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Krishna MadhavanSenior Software Engineer