Panduan Kejuruteraan: Hire a Freelance FinTech Programmer for Immutable Double-Entry Ledgers. Aldian Fazrihady ialah Programmer Bebas Kanan & Jurutera AI (Python, Django, FastAPI, React, Next.js, TypeScript, Golang).

Eliminate balance drift and race conditions by hiring senior freelance FinTech programmer Aldian Fazrihady to architect ACID double-entry accounting ledgers in PostgreSQL.

CREATE TABLE ledger_postings (
    id BIGSERIAL PRIMARY KEY,
    journal_id UUID NOT NULL,
    account_id BIGINT NOT NULL REFERENCES ledger_accounts(id),
    amount_minor BIGINT NOT NULL CHECK (amount_minor != 0),
    currency CHAR(3) NOT NULL,
    created_at TIMESTAMPTZ NOT NULL DEFAULT clock_timestamp()
);
-- Every journal_id must sum to exactly 0 across all postings

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