Skip to content
Projects

Systems I've builtand run in production.

Backends for e-invoicing, accounting, team wellness and hiring products, mostly in Go and PostgreSQL.

6 projects

Backend

Maxis E-Invoice

The Go back end behind Maxis's e-invoicing: PDF generation at scale, invoice cancellations and UBL 2.1 submissions to Malaysia's tax authority (IRBM).

Invoice PDFs generated in 30 days
20M
Fewer BigQuery calls, through batching
90%
Invoices cancelled in 2 days under a 12 RPM limit
36K

  1. Fintech

    Financfy

    Backend engineering for Financfy, a cloud-based accounting platform for growing businesses in Bangladesh. I built its Open API, bKash and Tap Payments integrations, subscription billing, API rate limiting and two-factor authentication using Go and PostgreSQL.

    • Golang
    • Gin
    • PostgreSQL
    • +6 more
    Visit site(opens in a new tab)

  2. Backend

    Career Pilot

    Developed a modular backend service for a job portal and resume builder. Designed RESTful APIs for job listings and implemented secure resume upload. Containerized services using Docker.

    • Golang
    • Echo
    • PostgreSQL
    • +3 more

  3. Backend

    Wellteam

    Built a configurable logging system and automated challenge workflows using Cron jobs. Implemented dynamic status updates and refactored database queries for performance.

    • Golang
    • Echo
    • MySQL
    • +4 more
    Visit site(opens in a new tab)

  4. Mobile

    CodePiece

    An Android app in Kotlin that teaches beginners C, C++, Java and Python side by side, with quizzes and progress tracking, downloadable books and in-app video lessons. Admins publish new content from a built-in dashboard backed by Firebase.

    • Kotlin
    • Android
    • Firebase Auth
    • +4 more
    Source code(opens in a new tab)

  5. Backend

    Blog API

    Developed RESTful APIs for user management with JWT authentication. Secured blog endpoints supporting CRUD operations and optimized API performance.

    • Golang
    • Echo
    • JWT
    • +2 more