I will build your fintech application expertise

C
callumluke
C
callumluke
callum

About this gig

Are you looking to build a secure financial app, virtual payment system, or trading software?

I am Callum Luke, a fintech software engineer. I develop modern financial technology applicationsweb platforms, mobile apps, and robust APIs designed to handle digital transactions and automate financial workflows securely.


What I Build & Integrate:

  • Virtual Payments & Gateways: BaaS virtual card issuing (Stripe, Marqeta), secure payment gateways, tokenization, and double-entry ledgers.
  • Forex & Trading Solutions: Custom broker web platforms, MT4/MT5 WebTrader setups, Client Cabinets (Trader Room), and MQL4/MQL5 EA automation.
  • Fintech Web & Mobile Apps: Web applications, mobile apps, live charting, and financial analytics dashboards.
  • Custom APIs & Backends: REST/GraphQL APIs, secure webhooks, and backend database design.

Why Work With Me?

  • Secure, clean code following industry standards
  • Fully customized end-to-end architecture

Please message me before placing an order to discuss your project scope

Get to know callum

callum

Fintech Specialist I Forex Broker Platforms, MQL4 I 5 EAs and Mobile Apps

  • FromUnited States
  • Member sinceMay 2026
  • Avg. response time1 hour
  • Languages

    English, Spanish, German
I am Callum Luke, a fintech software engineer specializing in Forex brokerage ecosystems, virtual payment platforms, and automated trading algorithms. I build secure, high-performance web and mobile applications integrating MT4/MT5 platforms, MQL4/MQL5 Expert Advisors, BaaS virtual card APIs (Stripe Issuing, Marqeta), and PCI compliant payment gateways. Whether you need a full broker CRM or a custom virtual payment system, I deliver scalable, audit-ready financial solutions engineered for real-world operations.