John Antony

About John Antony

Hands-on and impact-driven Principal Architect with 25+ years of experience building and scaling cloud-native platforms, real-time analytics systems, and enterprise SaaS products across startups and global enterprises.I specialize in blending strategic vision with deep technical execution—from selecting the right data platforms to leading multi-system integrations post-acquisition. I’ve led teams through greenfield builds, cloud cost overhauls, AI automation pipelines, and agile transformations. As a technical leader, I take pride in mentoring engineers into leads and enabling fast, high-confidence delivery by promoting ownership, TDD, and an open feedback culture.Constantly exploring modern AI tools to accelerate prototyping, coding, model deployment, and dev automation. I believe AI is reshaping how we build, and I actively integrate it into engineering workflows to improve both speed and quality. Key Impact Highlights- Delivered 65% infra savings and 35% ACV uplift via real-time analytics platform (ClickHouse)- Scaled product from 100K → 1M+ users through event-driven architecture- Built Theori CMS: AI pipeline automation with 80% engineering time savings- Enabled unified SuperApp through multi-system M&A integration- Resolved ElasticSearch/Kafka production instability: 30% cost savings, latency from 10s → <200ms, incidents and crashes eliminated- Mentored engineers into leadership roles using hands-on coaching and ownership culture- Introduced AI-assisted tooling and code automation to shorten delivery cycles and 10x developer efficiency.Technical and Functional Skills- Cloud & Architecture: AWS, Microservices, Event Driven Architecture, CQRS, Kubernetes, Docker,CI/CD, DevOps, Spinnaker, Capacity Planning- Data & Messaging: ClickHouse, Elasticsearch, Kafka, Redis, Postgres, MongoDB, DynamoDB,Kinesis, NATS, EventBridge- Frameworks & Languages: Go, TypeScript, Node.js, Express, Nest.js, GraphQL, REST, OpenAPI,React.js, KeyCloak, Casbin- Monitoring & Testing: Prometheus, Grafana, Zipkin, TDD, Mocha, Chai, Instanbul, SonarQube- Technical Leadership: Org Design, Hiring (Intern to CTO), Stakeholder Alignment- Coaching & Mentoring: Ownership Culture, Hands-on Enablement, Transformational Leadership

Experience

1. Senior Principal Engineer

   Atlassian

   Jan 2026 — Present · Bengaluru, IN

Education

• National Institute of Technology Calicut

  B.Tech, Computer Science and Engineering

  1994 — 1998

Skills

• Java Enterprise Edition
• Etl
• Multithreading
• Jquery
• Tomcat
• Xml
• Ecmascript
• Maven
• Relational Databases
• Web 2.0
• Spring
• Design Patterns
• Mongodb
• Agile
• Agile Methodologies
• Web Architecture
• Gruntjs
• Chai
• D3.js
• Rmi
• Angularjs
• Cloud Applications
• Redux
• Solution Architecture
• Test Driven Development
• Talend Open Studio
• Responsive Web Design
• Microservices
• Software Design
• Socket.io
• Sql
• Restful Webservices
• Hibernate
• Service-Oriented Architecture (Soa)
• Node.js
• Ajax
• Multi-Tenant
• Data Visualization
• Informatica
• Oracle