Software Engineer building scalable systems and impactful products 🛠️
About Me
Building scalable systems, engineering software for production 🛠️
I'm Rohit Patil, a software engineer focused on building scalable, production ready systems. My work revolves around API design, database modeling, asynchronous processing, and backend services that power complex applications end-to-end. I've worked on production systems involving secure request handling, asynchronous workflows, data pipelines, automation, and cloud deployments. I care about clean architecture, observability, and writing maintainable code that performs reliably in real world environments.
Skills
My Arsenal 🛠️, Ever-Expanding and Always Exciting!
JavaScript
Typescript
React.js
Next.js
Node.js
Express.js
Java
Spring Boot
MongoDB
PostgreSQL
Kafka
Redis
Docker
Git
GitHub
Linux
Nginx
Postman
SQL
MySQL
HTML
CSS
Tailwind CSS
Bootstrap
Chart.js
CPP
Python
Flask
Dart
Flutter
JavaScript
Typescript
React.js
Next.js
Node.js
Express.js
Java
Spring Boot
MongoDB
PostgreSQL
Kafka
Redis
Docker
Git
GitHub
Linux
Nginx
Postman
SQL
MySQL
HTML
CSS
Tailwind CSS
Bootstrap
Chart.js
CPP
Python
Flask
Dart
Flutter
JavaScript
Typescript
React.js
Next.js
Node.js
Express.js
Java
Spring Boot
MongoDB
PostgreSQL
Kafka
Redis
Docker
Git
GitHub
Linux
Nginx
Postman
SQL
MySQL
HTML
CSS
Tailwind CSS
Bootstrap
Chart.js
CPP
Python
Flask
Dart
Flutter
JavaScript
Typescript
React.js
Next.js
Node.js
Express.js
Java
Spring Boot
MongoDB
PostgreSQL
Kafka
Redis
Docker
Git
GitHub
Linux
Nginx
Postman
SQL
MySQL
HTML
CSS
Tailwind CSS
Bootstrap
Chart.js
CPP
Python
Flask
Dart
Flutter
Projects
My Builds, Full of Learnings and Adventures 🎢
TunnelWay
A reverse HTTP tunneling system built in Go that exposes local services through a public server using persistent WebSocket connections. Implements a custom binary framing protocol with request IDs for multiplexing concurrent requests, streaming request/response bodies in chunks. Uses io.Pipe for streaming, a bounded worker pool for concurrent request processing, and dedicated WebSocket write loops for thread-safe frame delivery. Includes heartbeat, automatic reconnection with exponential backoff, and tunnel session recovery.
Go
WebSocket
HTTP
Concurrency
Binary Protocol
CompressSync
CompressSync is an asynchronous image processing system that extracts image data from CSV files, compresses images by 50%, and stores the processed results. It features MongoDB integration, asynchronous queue processing with BullMQ, and supports API-based status tracking and webhook integration for automation.
Node.Js
Express.Js
MongoDB
Prisma
Redis
BullMQ
Cloudflare R2 Object Storage
csv-parser
Zod
Winston
Docker
GitHub Actions
Render
V2data
V2data is a Spring Boot application that enables users to upload audio recordings, which are then processed asynchronously through Spring Boot’s event-driven architecture for transcription and structured notes generation. The transcription and AI-powered notes generation are handled by a dedicated service built on Cloudflare Workers AI. The application also provides secure authentication with JWT-based authorization, email verification (via Mailgun SMTP relay), Cloudflare R2 object storage for audio files, and structured logging with Logback. The system is fully Dockerized with PostgreSQL and Flyway for database migrations.
Java
Spring Boot
PostgreSQL
Flyway
Cloudflare R2 Object Storage
Cloudflare Workers AI
JWT
Mailgun (SMTP Relay)
Logback
Docker
Docker Compose
Log Ingestor and Query Interface
Log Ingestor and Query Interface is a powerful tool designed for efficient log data management. It allows seamless log ingestion over HTTP and provides a user-friendly query interface with full-text search and various field filters.
Integrated firmwide document classification and protection into report workflows using OAuth token exchange, mTLS, and internal data-sensitivity APIs. Re-architected synchronous processing into an asynchronous workflow after tracing intermittent download failures to a 55-second API Gateway timeout, adding request tracking, status polling, and deferred downloads.
Designed an event-driven file processing pipeline for 20+ operation types using Azure Blob Storage, Event Grid, Event Hub, Azure Functions, and Spring Batch.
Introduced an annotation-driven handler model with shared record mapping, entity resolution, and configurable missing-data policies, enabling independent delivery of new operations. Cached static reference data to reduce validation database lookups from N x M to M per file.
Established a reusable FX-rate synchronization service using Spring Batch, Azure Functions, and internal SOAP-based MAP services, feeding reporting data and enabling user-selected currency views in AUM reports.
Migrated the Production Stability Dashboard from periodic CSV-based ITIL ingestion to ServiceNow Atlas Cache API ingestion using REST-based MongoDB aggregation queries. Implemented 5-minute delta loading with application-side enrichment and clustering from inventory and IT service catalog data.
Introduced Alembic-based database migrations in a Flask/PostgreSQL application, replacing manually managed schema changes with version-controlled migrations and reducing deployment issues caused by schema conflicts.
Automated Month-End Reporting and Axway Secure Transport workflows, reducing recurring manual effort by 150 and 100 minutes per month, respectively.
Optimized GitLab CI/CD pipelines through build optimization and dependency caching, reducing execution time from 13 minutes to 2 minutes.
Resolved EVA Vault HTTP 429 errors after VM reboots and patching using file locking, encrypted caching, and retry/backoff handling.
Developed a RESTful API for a Task Manager mobile application using Node.js, Express.js, and MySQL, showcasing full-stack proficiency.
Integrated advanced features such as Multer for file uploads and Nodemailer for email notifications, highlighting expertise in utilizing external libraries to enhance application capabilities.
Deployed the API to an Ubuntu 22.04 Digital Ocean server, ensuring reliable performance for client usage, and demonstrating proficiency in server administration and deployment procedures.
