Daniel Chen.

Crypto & trading systems

If you run, or are starting, a crypto brokerage, a forex/CFD broker or a prop-trading firm, the hard part is rarely the screens. It is the money paths: orders, balances, approvals, limits and the sync between systems. That is the part I work on every day.

What I can do

  • Crypto brokerage back offices

    Client and back-office APIs, maker-checker approvals, order and transaction views, exports with field-level permissions, KYC data sync and 8-decimal crypto precision.

  • MetaTrader 5 (MT5) integration

    Services on the MT5 Manager API (C#/.NET) and Web API: accounts, positions, deals, balance operations, trading rights and fast batch reads.

  • Prop-firm platforms

    From challenge purchase to funded account: phase rules, pass and fail logic, payouts, affiliate and campaign tracking, and the admin tools to run it.

  • Real-time risk monitoring

    Daily-loss and max-loss checks every few seconds, idempotent fail flows, and safety checks that refuse to act on numbers that do not add up.

  • Deposits, withdrawals and payouts

    Card, wallet, bank transfer and crypto payment flows with signed webhooks, refunds and reconciliation.

  • Trader and operations dashboards

    React dashboards for equity, P&L, accounts and guarded admin actions.

Proof, not promises

How we would work

  1. 01

    A short call

    A no-obligation conversation about what you need, what exists already and what success looks like.

  2. 02

    A written scope

    What I will build, what I will not, the risks, and a fixed quote or a time-based estimate.

  3. 03

    Small, visible releases

    You see working software early and often, on a staging site you can click through.

  4. 04

    Handover and support

    Documentation, access and a clean handover, with ongoing support if you want it.

Questions

Can you build a complete crypto exchange?
I build and extend the parts around the trading engine: client and back-office APIs, order and wallet flows, approvals, permissions, payments and data sync. Matching engines, custody and liquidity usually come from specialist providers, and I integrate them. We decide the split in the first call.
Do you work with MetaTrader 5?
Yes. I have built a C#/.NET service on the MT5 Manager API, used the Web API for account changes, and run a monitor that enforces loss rules on every account within seconds.
Can you help with a trading platform that is slow or buggy?
Yes. Tracing production bugs across services to the exact line is a big part of my day job. I reproduce the problem and prove the cause first, then make the smallest safe fix.
Do you build trading bots or strategies?
No. I build the platforms, integrations and risk systems that brokers and trading firms run on, not strategies or signals.

Tell me what you are building.

A few lines are enough: what it is, who it is for, and when you need it. The form is just below, or email me if you prefer. I usually reply within two working days.

Tell me about your projector email me: chendaniel150701@gmail.com

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