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siddheshsonawane07/README.md

Siddhesh Sonawane

Freelance Software Engineer · Pune, India

Sole contractor for a multi-venue ice cream and food concessions operator. I own delivery end to end — scoping, architecture, deployment, maintenance.

Portfolio LinkedIn X Medium Email


Client Work

Private codebases, client names withheld. Happy to walk through any of these on a call.

Stadium Operations Platform

React 18 · TypeScript · Express · PostgreSQL · Supabase · Railway

The financial and production estate of a multi-venue ice cream and food concessions operator.

  • Unified reconciliation across the operator's sales, supplier and settlement data — invoice handling from 15 minutes to under 2, a 6x throughput gain returning 30–40 finance hours a month.
  • Reporting the operator can close the books on — per-cap, margin and forecast figures now agree across every source that feeds them.
  • Runtime venue and module configuration — opening a new venue is a 30-second toggle, not a release cycle, and reversible.

Business Directory Platform

Next.js 15 · React 19 · TypeScript · Supabase · Stripe · Docker

A regional business directory — public listings, paid subscription placements, donations and a blog CMS.

  • Migrated the whole directory off WordPress — all 140 business listings moved onto the new stack with nothing dropped, replacing a site the client could no longer grow.
  • AI-assisted business discovery — finding and vetting candidates for the directory went from open-ended manual research to a reviewed shortlist, so the directory grows without the editorial team growing with it.
  • Self-service for business owners — the routine changes owners used to email about are now handled by owners themselves, worth 40–60% support deflection.

Community Heritage Archive

React 19 · TypeScript · Expo Router (React Native Web) · Supabase · TanStack Query

A history and culture archive on the web. It preserves local knowledge — food, healing, dialect, music, ancestry — in the voices of the elders, cooks and herbalists who hold it, and in the recordings families make on their behalf.

  • Layered media makes it an archive, not a forum — audio, transcript, photographs and video sit on a single entry, and the dialect is preserved as spoken rather than corrected into standard English.
  • A live feed, not a museum — people post, follow, like and comment; the archive is the by-product of an active community rather than a static collection.
  • Offline-first — the whole archive runs with no network at all, which also takes contributor onboarding from 2–5 days to a single command.

Logistics Lead-Generation Site

Next.js 16 · React 19 · TypeScript · Plain CSS · Railway · Cloudflare

A rebuild of the site for a US third-party logistics (3PL) provider that stores, picks, packs and ships freight for other brands. Its only job is getting brands and carriers into the sales funnel.

  • WordPress rebuilt to sub-2-second load — the band Google ties to conversion lifts up to 27%, and 8.3% more form submissions per 0.1s saved on lead-gen pages.
  • Core Web Vitals as shipping gates — 90+ Lighthouse, LCP under 2.5s, CLS under 0.1, INP under 200ms.
  • Three qualified lead paths — a warehouse-space calculator, carrier signup and a brand onboarding programme, each landing pre-qualified in the client's CRM.

Projects

What it does Tech
SprintFlow AI Turns a goal into a planned sprint — epics, stories and tasks, sequenced. 80% less planning overhead Archestra.ai, MCP Demo
Crisis Voice Agent Records assessment calls and fills the clinical paperwork — 70% less documentation time, sub-800ms latency, 94% transcript accuracy FastAPI, Deepgram, React —
Support Assistant Triages support email and drafts the fix — 50+ tickets a day, triage from 18 minutes to 4 PixieBrix, Azure DevOps —
GitHub Chatbot Lets visitors ask my GitHub questions instead of reading it LangChain.js, FAISS Code
WhatsApp Parser CLI WhatsApp exports into clean JSON you can actually analyse Node.js npm
Proctorise Keeps remote exams honest — 91% pose-detection accuracy, violations flagged in under 1.2s TensorFlow.js, React Live · Code
Excel Visualizer Upload a spreadsheet, get the right charts without picking them Streamlit, Pandas Live · Code
Bounties Aggregator One place to find and publish on-chain bounties Solidity, Ethers.js Live · Code

Flutter and Android — Online Radio · Wordle · Movies List · Catalog UI · Solar System UI · Meme Share


Tech

Frontend React · Next.js · React Native (Expo) · Flutter · Redux · TanStack Query · Tailwind · Vite

Backend Node.js · Express · FastAPI · PostgreSQL · MySQL · MongoDB · Supabase · Firebase · Stripe

AI LangChain · FAISS · Deepgram · Mistral · TensorFlow.js · MCP · Pandas · Streamlit

Languages TypeScript · JavaScript · Python · Java · Kotlin · Dart · Solidity · SQL

Ops Docker · Railway · GCP · Azure · Cloudflare · Netlify

Automation Automation Anywhere A360 · UiPath · PixieBrix · Jira


Experience

Freelance Software Engineer — Independent · Aug 2026 – Present Sole engineer behind the entire software estate of a multi-venue ice cream and food concessions operator — financial operations, automated production scheduling and a retail buildout platform, all three in production, all architected, shipped and maintained by me. Built the reconciliation engine that closes their books, multi-venue tenancy that opens a site without a deploy, and a shared identity layer governing access across the estate. In parallel, deliver billed products for other clients across web and mobile — scoping from the client call through architecture, deployment and the maintenance afterwards.

Software Engineer — Xalta Technologies, Pune · Mar 2025 – Aug 2026 Architected an AI crisis-assessment voice agent — real-time browser audio capture, streaming transcription and LLM-driven structured form generation — cutting clinical documentation by 70%. Built a browser-native production-support assistant doing thread-aware triage across 50+ tickets a day, dropping average triage from 18 minutes to 4. Delivered enterprise RPA on Automation Anywhere A360 and Jira Service Management configuration for client teams.


Education

B.E. Computer Engineering — Dr. D.Y. Patil Institute of Technology, Pimpri · 8.76 CGPA · 2020–2024 Flutter Co-Lead, Google Developer Student Club.


Building an MVP, or need someone to own a product end to end?

siddheshsonawane07@gmail.com

Open to freelance and contract work.

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