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Stefan-Len/README.md

QDE-Systems banner

Stefan Len

Founder/operator of QDE-Systems.

I build deterministic execution infrastructure: systems where market data, risk boundaries, execution planning, audit records, and operator review stay visible instead of disappearing into a black box.

My current work is focused on QDE: source-code infrastructure for disciplined, auditable execution workflows. The commercial system is private and application-based. The public repositories show selected architecture ideas, not the full QDE product.

QDE-Systems

QDE-Systems is built around a simple engineering view:

  • decisions should be traceable;
  • risk should be checked before execution;
  • runtime boundaries should fail closed;
  • audit records should survive memory and opinion;
  • AI agents should be used as disciplined reviewers, not unsupervised operators.

This is not a signal service, trading room, managed account product, or financial advice project.

Public Technical Reference

Repository What it shows
qde-systems-infrastructure Public architecture sample for risk-gated decisions, deterministic order planning, audit trails, and fail-closed execution boundaries.

More public QDE-Systems material may be added over time, including the public operator-group page for selected licensed users.

Engineering Focus

  • Deterministic execution flows
  • Risk-gated runtime design
  • Audit-safe system boundaries
  • Broker/execution boundary design
  • AI-agent review workflows
  • Python backend architecture
  • macOS operator tooling

Commercial Scope

The public samples do not include private strategy logic, broker integrations, IBKR execution code, credentials, private market-data configuration, model artifacts, customer data, or commercial QDE source code.

Commercial QDE access is separate and application-based.

Contact

stefanlen@qde-systems.com

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  1. qde-systems-infrastructure qde-systems-infrastructure Public

    Public architecture sample for QDE-Systems deterministic execution infrastructure: risk-gated decisions, audit trails, and fail-closed execution boundaries.

    Python