Software Engineer  •  Ruby on Rails  •  Java  •  Backend Systems  •  API Integrations  •  Production Engineering

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Rails engineer building production operational systems — automation pipelines, API-heavy backends, and business workflow software for real clients — including a Government of India institute (Ministry of Tourism). I own projects end-to-end: schema design, APIs, deployment, client communication, and production debugging.

Live system used daily by 200+ gym members in New Delhi · spine-fitness.com · Repo

• Built a Python bridge to sync ZKTeco biometric device (local network) with a cloud Rails API via HTTP POST — dual-layer deduplication, zero duplicate records in production
• Resolved 0% WhatsApp delivery rate by migrating from third-party provider to direct Meta Cloud API with webhook-based delivery tracking (QUEUED → SENT → DELIVERED → READ)
• Diagnosed 169ms DB latency from Paris-hosted server — migrated to Railway.app Singapore, cut response times from ~5s to 30ms (150× improvement)

Ruby on Rails Python MySQL Hotwire Meta Cloud API Railway.app

Built as a technical assessment · Reached global final round (top 7 worldwide) at Empire Flippers · Repo

• Idempotent sync pipeline: Empire Flippers API → PostgreSQL → HubSpot CRM → Google Sheets, with full pagination, deduplication, and daily Sidekiq execution
• 16 RSpec tests covering services, jobs, and edge cases

Ruby on Rails PostgreSQL Redis Sidekiq RSpec

Live payment backend for a French education business · frenchworksheethub.com · Repo

• HMAC-verified idempotent Razorpay webhooks — server-side amount control, signed download tokens (30-day/5-use cap), refund revocation.
• Admin panel for non-technical owner; rack-attack rate limiting, PII log filtering.

Ruby on Rails PostgreSQL Razorpay Cloudflare R2 Resend Railway

Backend: Ruby on Rails · Python · REST APIs · Sidekiq · Redis
Databases: MySQL · PostgreSQL
Frontend: Hotwire · JavaScript · React · Tailwind CSS
Infra: Docker · Linux · Git · Railway.app
Learning: AWS · Kubernetes · Elasticsearch · RAG Systems · LLMs

Technical articles on production Rails engineering:

• From Polling to Production: Biometric Integration with Gate Control & Auto-Enrollment
• How I Ditched Interakt and Built a Direct WhatsApp Pipeline with Meta Cloud API
• Connecting a Biometric Fingerprint Device to a Rails Web App Using Python

→ All articles on Hashnode

Contributed merged PRs to Scarpe (Ruby Desktop Framework) and Open Library (Internet Archive) through maintainer review cycles.