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I build products and the systems behind them.

I’m Keyur Raval, a founder-engineer with 14+ years across product engineering, technical leadership, and cloud architecture. Here’s how I turn ambiguous problems into software that ships.

Selected engineering work

The products, my role, and the engineering decisions behind them.

VibeChess

Founder & CTO

VibeChess practice screen with an adaptive mate-in-one puzzleVibeChess Progress screen showing rating, streak, puzzle history, and achievements
Practice and progress. App Store screenshots, October 2026.

Making real-time play reliable on mobile.

A Flutter chess app with adaptive practice, live duels, subscriptions, and releases for iOS and Android.

I kept game state authoritative on the server and display state in the Flutter client, with explicit handling for disconnects and simultaneous moves.

A 15-second bot fallback keeps duels playable while the player pool is small.

Flutter · Socket.IO · Real-time systems

PatternRank

Creator & Quant Engineer

PatternRank’s public ledger with model, confidence, ranking date, and completed outcome columns
Public sample ledger, captured October 2026. Select to enlarge.

Taking a research pipeline into production.

A US equities research product that connects daily model rankings with a public record of completed outcomes.

I built the workflow around data quality, validation without future information, and a repeatable pipeline from market data to published rankings.

Rankings refresh after market close; completed 7-day outcomes remain available for review.

Python · Machine learning · Next.js

IndianOps

Creator & Quant Researcher

Indian Options Ops dashboard showing broker-feed status, quote quality, and paper-only operation
Market-data quality view, captured October 2026. Paper trading only. Select to enlarge.

An algorithm suite for Indian index options.

IndianOps brings systematic options strategies and paper trading into one research workflow, spanning volatility, directional, and expiry-based approaches for Indian indices.

I built the research pipeline around market-regime detection, strategy selection, and simulated execution, with four broker data sources and checks for stale or missing quotes.

The paper-trading engine records positions, costs, and decision reasons so algorithms can be evaluated before committing real capital. A React dashboard makes that process inspectable.

Python · FastAPI · React · PostgreSQL

Talis

Freelance Full-stack Developer

2021–April 2025

Five codebases. One configurable architecture.

I worked on consolidating a multi-chain marketplace around typed configuration, capability flags, and wallet adapters. Shared fixes could ship across all five chains without being ported between repositories.

Read the Talis architecture case study

Experience

Independent products and client engineering work.

Independent products

  • PatternRank

    2025–Present

    Creator & Quant Engineer

  • VibeChess

    2025–Present

    Founder & CTO

  • VibeShip

    2025–Present

    Founder & CTO

  • IndianOps / GreekLab

    2026–Present

    Creator & Quant Researcher

Client experience

  • Talis

    2021–April 2025

    Freelance Full-stack Developer

More about my background

Let’s talk engineering.

Building a team? I’d be happy to discuss my work, the decisions behind it, and what your team needs next.

Email Keyur

keyur@keyval.me