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  • Tokyo, Japan

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Achievement: Pull Sharkx2Achievement: Arctic Code Vault Contributor

Achievements

Achievement: Pull Sharkx2Achievement: Arctic Code Vault Contributor

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damian123/README.md

Lars Schouw

Backend and systems engineer in Tokyo, focused on reliable financial systems and performance-critical C++.

Current open-source work

I contribute SIMD embedding search and stable neural kernels to DR3, a real AVX2 library:

  • PR #34 — exact float32 similarity, stable top-k retrieval, and alignment-safe tails.
  • PR #35 — stable softmax, LayerNorm/RMSNorm, and activation kernels.
  • PR #36 — fixed-weight small-batch MLP inference with scalar agreement tests.

Selected original work

  • ClientLoop — TypeScript CRM with permissions, audit history, outbox delivery, OIDC, and Playwright.
  • Financial Event Ledger — Spring Boot double-entry ledger with idempotent ingest, outbox processing, and reconciliation.

Pinned Loading

  1. clientloop clientloop Public

    TypeScript CRM modular monolith with Fastify, Next.js, Prisma, permissions, outbox delivery, and Playwright.

    TypeScript

  2. financial-event-ledger-java financial-event-ledger-java Public

    Spring Boot financial event ledger with idempotent ingest, double entry posting, transactional outbox, and reconciliation.

    Java

  3. transaction-reconciliation-typescript transaction-reconciliation-typescript Public

    TypeScript transaction reconciliation with deterministic matching, ambiguity handling, reversals, and financial control totals.

    TypeScript

  4. trading-execution-safety-typescript trading-execution-safety-typescript Public

    TypeScript trading execution safety with sequence integrity, durable order intent, unknown outcomes, and fill replay.

    TypeScript

  5. internal-transfer-approval-fastapi internal-transfer-approval-fastapi Public

    FastAPI and PostgreSQL transfer approvals with separation of duties, concurrency controls, and idempotent execution.

    Python

  6. free-tier-lab free-tier-lab Public

    Terraform for Oracle Always Free ARM compute: Docker host, SSH locked to a /32, and cost ceilings. Apply in your own tenancy.

    HCL