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Quantrust: Investment Contract Platform & Payout Automation

We engineered a comprehensive investment management platform featuring daily interest accrual, automated bank reconciliation, and an investor portal.

Quantrust portfolio allocation and fund analytics UI
Quantrust multi-rail transaction ledger and balance overview

What We Shipped

  • Configurable contract management

    Operators can configure investment packages, duration terms, payout frequencies, and early liquidation rules directly through an administrative interface.

  • Daily interest accrual & automated payouts

    An automated computation engine calculates accrued daily interest and triggers scheduled payouts into an append-only accounting ledger.

  • Automated bank reconciliation engine

    The engine parses incoming bank transfer feeds and automatically attributes deposits to the correct investor contract.

  • Dedicated investor portal

    Investors can monitor active contracts, track accumulated yields, review transaction histories, and download tax statements.

  • Digital identity verification (eKYC)

    A fully digital customer onboarding workflow verifies identity documents and manages compliance requirements.

  • End-to-end contract lifecycle management

    Contract states, from pending deposit to active compounding, payout cycles, and maturity, are strictly validated and tracked.

  • Affiliate commission ledger

    The system tracks partner referral networks and computes commission settlements directly within the core financial ledger.

  • Decoupled portal & public site architecture

    A public-facing interest calculator and the private investor portal operate on separate domains while sharing a single core backend engine.

  • Financial-grade security controls

    Role-based access control (RBAC), end-to-end distributed tracing, and encrypted credential storage safeguard financial operations.

01 / INBOUND DEPOSITSSWIFT / Wire TransferQT-9482 · $150,000USDC On-Chain Deposit0x7a8c...91e · $50,000ACH Direct DebitQT-1092 · $25,000Institutional CustodyQT-8831 · $500,00002 / RECONCILIATION ENGINEAUTOMATIC MATCHER98%Instant zero-touch matching2% exception queue → ops review · < 5 min SLA03 / CONTRACT LEDGERContract #8491Principal $150,000 · yield accruingACTIVEContract #8490Monthly distribution · 0 errorsPAYINGContract #8412Principal repaid in fullMATUREDContract #8492Awaiting multi-sig authorizationPENDINGAutomated payout cycles · zero reconciliation errors

Problem & Context

Quantrust manages thousands of fixed-term investment contracts across diverse interest schedules. The business required an automated system to handle contract lifecycles, compute daily compound interest, and execute programmatic bank payouts.

The platform demanded arithmetic precision under strict day-count conventions alongside an immutable audit trail for external financial audits.

Engineering Challenges

01

Absolute arithmetic accuracy across compound models

Varying day-count conventions and compounding schedules required isolated calculation modules with automated reconciliation background jobs that flag discrepancies prior to payout execution.

02

Handling malformed bank transfer narratives

Inbound transfer descriptions often contain typos or truncated identifiers. The matching engine automatically resolves 98% of payments and diverts ambiguous transactions to an operator queue.

03

Full-spectrum auditability and tamper resistance

Every balance mutation, contract amendment, and financial transfer writes to an append-only log stamped with a distributed Trace ID.

Operational outcomes

98%
inbound deposits matched automatically

The automated matching engine reconciles 98% of inbound bank transfers instantly, routing only syntax errors or ambiguous memos to the operator queue.

An immutable double-entry ledger maintains end-to-end auditability across every payout cycle.

Quantrust automated reinvestment contract interface

How this benefits client projects

We bring double-entry accounting architecture, arithmetic validation engines, and automated bank reconciliation workflows directly to client financial platforms.

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