Services
Software development for fintech, trading and growing businesses.
I am Daniel Chen, a senior backend engineer in Kuala Lumpur. I take on project work for companies and founders: crypto and trading systems, payments, websites, mobile apps and backends. Tell me what you are building and we will work out whether I am the right fit.
What I can build for you
Crypto & trading systems
Back offices for crypto brokers, MetaTrader 5 integrations, prop-firm platforms and real-time risk monitoring.
Learn morePayment gateway integration
Cards, Apple Pay, Google Pay, bank and crypto payments done properly: signed webhooks, idempotency, refunds and reconciliation.
Learn moreWebsites & web apps
Fast Next.js websites, portals and dashboards that load quickly, rank on Google and work in more than one language.
Learn moreMobile apps for iOS & Android
Flutter apps for iPhone and Android from one codebase, with the backend, push notifications and store release handled.
Learn moreBackend & system development
APIs, integrations, data and cloud for systems that have to be right: event-driven services, background jobs and DevOps.
Learn moreHiring for your team?
Open to senior backend and full-stack roles, full-time or contract.
Hire me
How we would work
- 01
A short call
A no-obligation conversation about what you need, what exists already and what success looks like.
- 02
A written scope
What I will build, what I will not, the risks, and a fixed quote or a time-based estimate.
- 03
Small, visible releases
You see working software early and often, on a staging site you can click through.
- 04
Handover and support
Documentation, access and a clean handover, with ongoing support if you want it.
Questions
- Where are you based, and who do you work with?
- Kuala Lumpur, Malaysia (GMT+8). I work remotely with companies and founders in Malaysia, Singapore and anywhere else, in English or Chinese.
- How much does a project cost?
- It depends on scope. After a short call I send a written scope with a fixed quote or a time-based estimate, so you know the cost before anything starts.
- Will you sign an NDA?
- Yes, happy to sign one before you share the details.
- Are you also open to a job?
- Yes, for the right senior backend or full-stack role, full-time or contract.
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.