Systems I Build

Four categories. Defined by architecture, not by a toolchain. No framework evangelism. No language wars.

Trading Systems

A trading system is a coordinated architecture: market data in, signal out, orders submitted, fills tracked, state reconciled, risk enforced. It runs continuously. It survives partial failures. It treats risk as a layer, not a pre-trade checkbox.

Components

  • market data ingestion
  • signal engine
  • execution engine
  • risk layer
  • position & state manager
  • monitoring & alerting

Flow

data signal execution monitoring adjustment

Keywords

algorithmic trading execution layer market microstructure backtesting live trading signal engine position tracking risk management

Financial Infrastructure

The backend that moves capital without losing it. Correct under partial failure. Idempotent at the client. Reconciliation as a first-class operation, not a cron job someone forgot to monitor.

Components

  • custody integration
  • settlement engine
  • reconciliation service
  • compliance layer
  • audit trail
  • ledger & accounting

Flow

intent validation execution settlement reconciliation

Keywords

settlement systems custody reconciliation financial APIs payment rails ledger systems idempotency audit trail

Crypto Execution Systems

Orders routed across exchanges and on-chain venues. One consistent view of state, positions, and risk. A venue going down does not corrupt the position model. A reconnection does not produce duplicate fills.

Components

  • exchange connectors
  • smart order router
  • unified state store
  • on-chain settlement bridge
  • risk & exposure engine
  • latency monitor

Flow

order routing venues state sync risk check

Keywords

multi-exchange trading smart order router on-chain settlement slippage position reconciliation exchange connectivity crypto infrastructure

Tokenized Systems

Assets and access as programmable tokens. The token model, issuance logic, and transfer rules are the contract. Everything else is implementation. On-chain state, off-chain policy, clean separation.

Components

  • token model
  • smart contracts
  • issuance layer
  • transfer rules
  • governance
  • off-chain indexers

Flow

asset token model issuance transfer redemption

Keywords

tokenization smart contracts digital assets on-chain settlement programmable money token economics governance

Ignacio Montoya is a systems architect specializing in algorithmic trading infrastructure, financial systems, and digital asset platforms. He designs and operates trading systems, financial infrastructure, crypto execution systems, and tokenized systems for firms where capital, risk, or execution are on the line.

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