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> system ready.

Rutuj Kankaria

I build real-time, event-driven systems where correctness matters more than speed. My work spans trading infrastructure, AI validation pipelines, and shipped products used in production environments.

→ Systems that don’t break under pressure

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Decision Engine

This is how I approach engineering problems under real constraints.

> input: Design a Real-Time Trading System

Design a Real-Time Trading System

How would you build a system that processes streaming market data and executes decisions under strict risk constraints?

constraints

  • • Continuous high-frequency input streams
  • • Decisions must use consistent state
  • • Failures can have real financial consequences
  • • Execution latency matters, but correctness matters more

approach

  • • Use an event-driven architecture with asynchronous pipelines
  • • Separate ingestion, signal evaluation, and execution into clear stages
  • • Enforce deterministic state transitions before any trade is placed
  • • Add monitoring, cooldown safeguards, and persistent logging for traceability

tradeoffs

  • • Lower latency is valuable, but not if it breaks consistency
  • • More safeguards reduce failure risk but can slightly slow execution
  • • State clarity is more important than clever concurrency

> verified_output

Built a real-time microstructure trading engine processing L1/L2 and time-and-sales data across ~15 exchanges with $1M+ live trading volume.

system_confidence: validated

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Control Room

A quick view of the systems I’ve built, how they operate, and the signals that make them meaningful.

Trading Engine

Live
modeEvent-driven execution
signalL1/L2 + time-and-sales data
proof$1M+ live volume

FitAI

Shipped
modeAdaptive product workflows
signalWorkout history + user feedback
proof100+ App Store downloads

LLM Validation

Active
modeValidation-first inference
signalMulti-model response routing
proofStructured output selection

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Featured Projects

A selection of the systems and products I’ve built. Explore the full projects page for deeper implementation details.

View Full Projects Page

> next_step

Let’s Connect

I’m interested in backend, systems, infrastructure, and AI-integrated software roles.

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