MQT
Home

Market systems

Quant / Trading & Performance

Market-data correctness, paper execution, and deterministic replay, not live-money trading.

This is trading-systems and performance engineering on public market data and simulated execution, not employment quant experience, and not live-money trading.

Selected projects

ApexBook operator dashboard overview: feed health, paper orders, and system status

ApexBook

Quant / Trading & Performance · Crypto execution and market-data engine

Public Binance L2 data, snapshot/delta reconciliation, and a deterministic per-symbol paper matching engine. No real-money orders.

Go / PostgreSQL / WebSocket / Prometheus / fixed-point int64

Case studyGitHub
CrossVenue pipeline: venue adapters into local books, opportunity engine, risk, and simulated two-leg execution

CrossVenue

Quant / Trading & Performance · Multi-venue market-data and execution simulation

Binance, OKX, and Bybit feeds into local books, depth-aware VWAP, and non-atomic two-leg paper execution with inventory-aware risk. Not HFT and not a live gateway.

Go / PostgreSQL / Prometheus / Binance / OKX / Bybit

Case studyGitHub
QuantXecute engineering console in replay mode: depth ladder, trade-simulation result with VWAP and bps cost, and book-health counters from the live engine API

QuantXecute

Quant / Trading & Performance · Real-time market data & execution simulation

C++20 engine that reconstructs L2 order books from live exchange snapshot/delta streams, simulates execution against observed depth, and enforces deterministic live/replay parity.

C++20 / WebSocket / CMake / ASan+UBSan / TSan / Next.js

Case studyDashboardGitHub

Earlier market-systems experiments

GitHub-only precursors. They are not flagship work.

GitHub

order-book-sim

Earlier order-book simulation experiment, superseded by ApexBook and QuantXecute.

Repository

GitHub

order-matching-cp

Earlier matching experiment, superseded by ApexBook.

Repository

Experience

Shared history across tracks. Roles are not rewritten to match the page.

Takkada

May 2026 - Present · Current

Founding Engineer

Remote

  • Building PaySaathi end-to-end as the first engineer across Flutter, Supabase, PostgreSQL, Edge Functions, Next.js admin tooling, Tally connector paths, integrations, and production infrastructure
  • Rebuilt standalone accounting surfaces across app and backend: voucher-family schemas, register RPCs, bill-wise settlements, ageing/analytics, financial statements, journal/note/FY flows, and line-money contracts
  • Shipped production workflows for GRN/Receipt Note, stock journals, purchase/credit/debit note lines, GST return exports, e-invoice/e-way bill enablement, invoice PDFs, and WhatsApp delivery
  • Hardened access and operations through RBAC/voucher-type grants, tenant-write guards, license/feature gates, partner tier controls, assisted onboarding, and admin wallet/payment reconciliation
  • Improved sync performance and reliability: statement-level rewrite of hot sales-invoice aggregate triggers, fresh-before-retry tally job claiming, per-company sync status in the Tally loader, and hardened auth/payment boundaries

Flutter / Supabase / PostgreSQL / Next.js / TypeScript

Caudal AI

Apr 2026 - Present · Current

RLHF Trainer

Contract · Remote

  • Evaluate coding-agent and LLM outputs against detailed specifications, tests, expected behavior, and scoring rubrics
  • Review model-generated patches and technical reasoning for functional correctness, regressions, edge cases, and instruction compliance
  • Produce structured preference/corrective feedback for RLHF workflows while analyzing recurring model failure modes and improving evaluation consistency through reproducible verification

RLHF / LLM Evaluation / Coding Agents / Code Review / Rubric Evaluation

Zomato

Jul 2025 - Dec 2025

SDE-1

Gurgaon, India

  • Reduced API round-trip overhead by removing redundant gRPC/MySQL calls, improving p90 latency 5x at massive scale
  • Automated ticket workflows and chatbot link-ticket generation, cutting manual ops by 80% and reducing support load by 35%
  • Integrated external CX platforms (Zendesk, Freshdesk) with ticketing, data-sync, and callback handling

Golang / gRPC / MySQL / MongoDB

The Linux Foundation

Nov 2023 - Mar 2024

SDE Intern

Seoul (Remote)

  • Replaced HTTPS calls with gRPC architecture, achieving 60% faster data transfer
  • Implemented CloudForet development images supporting 50+ microservices
  • Streamlined development lifecycle with advanced container orchestration

Docker / Nginx / gRPC / Linux / Minikube

Tracks

Explore by Focus

Same site, same design. Emphasis changes; identity does not.

Backend & Systems

Distributed systems, leases, checkpoints, and crash recovery.

Quant / Trading & Performance

Order books, execution simulation, and performance engineering.

Full-Stack & Product

Product ownership across app, API, and production operations.