Home / Node.js API Developer, South Africa
A Node.js developer building APIs your business can depend on.
Loyalty, subscriptions and system integrations, built to keep working after launch, not just at the demo.
Does this sound like you?
- “Two systems are supposed to update each other, and half the time they don’t.”
- “We paid for a ‘connector’ tool and it still needs someone to fix it every month.”
- “We need an API that can handle real traffic, not just a demo.”
- “Nobody on the team can tell us why the sync sometimes silently fails.”
What I’d do.
Map what needs to talk to what.
I find the systems, the data and the failure points before writing anything.
Design the contract first.
What each system sends and receives, and what happens when something goes wrong, agreed before the build starts.
Build it to be depended on.
Proper error handling, logging and a rollback plan, not a fragile first draft.
Proof.
A credit system linked to a Shopify store and its back-office system.
Customer balances kept in sync in both directions, with automated commission calculations.
See the Shopify credit system project →
A push notification service, independent of the main app.
Routing notifications, tracking delivery and retrying failures, used by multiple client applications.
See the push notifications project →Anton did all the tasks we requested from him expertly and quickly. We’re very pleased with the revisions he’s made to the website and would wholly recommend his work.
How it starts.
Tell me which two systems are supposed to talk to each other, and what happens today when they don’t. That’s enough for a first conversation.
For your technical person
What this covers
- Stack: Node.js and TypeScript for API servers and microservices; PostgreSQL and MongoDB for data; REST for communication; webhook pipelines and real-time sync where the work needs it.
- API work built: rewards and loyalty APIs, subscription management, billing APIs, multi-tenant systems, real-time data processing.
- Shopify credit system: bidirectional API bridge to Exigo ERP, real-time balance sync, webhook event handling.
- Push notifications microservice: routing, delivery tracking and retry logic, independent of the main application.
- Integration experience: Bazaarvoice, FormStack, Exigo ERP, WordPress REST API, South African payment gateways.
Background
- 1,900+BX1X API endpoints
- 300+practice platform API endpoints
- 26years in IT
- 175+client reviews
Rewards and loyalty API server: stamps, vouchers, QR-code redemption and admin workflows, built in 2020. Centralised cloud reporting system: a Node.js API and PostgreSQL reporting layer over WordPress and membership data.
WASP work (March to September 2022): Node.js developer on loyalty and subscription services for Vodacom, MTN, Cell C and Telkom.
Specialist terms and job titles
Also described as: Node.js developer South Africa, API developer South Africa, backend developer, integration developer, microservice developer.
Questions owners ask.
What scale of API systems have you built?
My own business platform, BX1X, is built on 1,900+ API endpoints. A medical and dental practice platform I built covers 300+ endpoints across patients, billing, medical aid claims, appointments and clinical notes. That is the kind of scale I design for from the start, not just for a demo.
What is your primary backend stack?
Node.js and TypeScript for API servers and microservices, PostgreSQL and MongoDB for databases, REST for communication. I also work with webhook pipelines and real-time sync.
Do you build new APIs or also integrate existing systems?
Both. I build custom API servers from scratch and I integrate existing systems: connecting CRMs, ERPs, payment gateways and third-party services into one working flow.
Are you based in South Africa?
Yes. I am based in Cape Town. My company, Villiers Vision Works (Pty) Ltd, is registered in South Africa. I work with clients locally and internationally.
Can you handle a system with real daily traffic?
Yes. My point of sale system processes 5,000 daily transactions across 7 branches. I design for reliability from the start, not just for the demo.
Related help.
Tell me why the sync keeps silently failing.
+27 87 150 9305Monday to Friday, 09:00 to 20:00 SAST. Or email info@antondevilliers.com.