I design and engineer backend systems that move real money.
Currently working in fintech, building and maintaining payment gateway infrastructure that powers enterprise merchants across Southeast Asia — handling high-volume transactions, strict uptime requirements, and production-grade reliability.
I specialize in scalable API architecture, transactional workflows, and backend systems that don't break under pressure.
- Architect high-availability payment services
- Design RESTful APIs for high-volume transactional systems
- Build asynchronous workers & background processing pipelines
- Optimize database performance for production workloads
- Improve system reliability in live payment environments
- Contribute to Golang-based service components
- Clean architecture > messy features
- Reliability > shortcuts
- Observability > guessing
- Scalability by design, not by accident
- Code that survives production
Backend
- PHP (Laravel)
- Golang
- RESTful API Design
- OOP & Service-Oriented Architecture
Databases
- MySQL
- PostgreSQL
- CouchDB
- Prisma ORM
Systems & DevOps
- Docker
- PHPUnit
- Queue Workers & Cron Jobs
- Production Monitoring
- Agile / Scrum
Frontend Exposure
- Angular
- Next.js
- Livewire
- JavaScript
Razer Merchant Services | May 2025 – Present
- Maintain high-availability payment gateway services supporting enterprise merchants (Shopee, TikTok, Zus Coffee).
- Built systems supporting credit/debit cards, BNPL, recurring billing, and DuitNow QR.
- Designed scalable REST APIs handling high-throughput transactional workflows.
- Contributed to Golang-based components including QR transaction generator modules.
- Implemented asynchronous background workers to improve system throughput.
- Optimized MySQL & CouchDB for transactional integrity in production.
- Monitored and resolved live payment-critical incidents.
3TD Solutions | June 2023 – May 2025
- Delivered secure large-scale systems for government agencies (KPM, CGSO).
- Architected backend systems handling high volumes of sensitive data.
- Led a development team for a major government project.
- Designed secure REST API integrations across internal and external systems.
- Managed relational databases with performance and data integrity focus.
Stampede Solutions | Sept 2022 – May 2023
- Contributed to Volare, used by 90% of major Malaysian debt collection agencies.
- Built banking-grade REST APIs integrated with financial systems.
- Improved SQL performance and backend scalability in production.
- Worked in structured Agile/Scrum delivery cycles.
Deep learning computer vision system:
- 3,000+ annotated images
- Real-time image, video & webcam detection
- Built in Python
- Laravel Livewire-based HR modules
- Real-time interactive backend-driven features
- Integrated Shopee, Amazon, Lazada, eBay
- Automated listing & inventory synchronization
📍 Shah Alam, Malaysia
📧 nazrinafzal.official@gmail.com
🔗 LinkedIn: https://www.linkedin.com/in/nazrin-afzal1997/