A decade,
grown as a tree.
Ayush Soni — Senior Backend Engineer. Java · Spring Boot · Distributed Systems. Scroll to climb ten years of shipping, branch by branch.
Where the soil came from.
CS fundamentals, Java bytecode, a love for the JVM, and a patient habit of reading other people's stack traces. Before any company — a self-taught obsession with building things that don't fall over at 3am.
Justdial Omni.
Built backend REST APIs for a cloud-hosted SMB platform — online orders, inventory, billing, purchase orders. Enabled real-time inventory tracking with automated distributor stock flows for thousands of merchants.
Monolith → services.
Broke down legacy monoliths into services for checkout, refund, and wallet domains. Built a product recommendation engine on Neo4j and a data warehouse on AWS Redshift for BI reporting.
20M personalized emails / day.
Redesigned a monolithic email system into services that power ~20M personalized emails every day. Built Java/Spring/Kafka/BigQuery APIs delivering email tailored to each user's search & booking history. Integrated with Iterable for scale.
DS2 Feature Store.
Architected a platform-as-a-service data-science product — 6+ services (Feature Store, Metadata Store, Datalens, API gateway). Shipped the Metadata Store on Elasticsearch + Neo4j with GraphQL. Mentored 4+ engineers.
1P → Hyperforce.
On the Public Cloud migration for Salesforce Commerce Cloud — contributed to the first successful 1P tenant migration. Cut migration time from 10 days → <24 hours via zero-downtime pipelines orchestrated with Temporal. Self-serve tooling 2.5×'d team capacity. Integrated Claude, Cursor, Windsurf, and MCP servers into daily workflows.
Everything, in bloom.
Ten years of branches, all the leaves visible at once. Open source, side projects, and a running list of tools I reach for.