AbirHossainXian

@ Architect & Lead Engineer

Job-management SaaS for Australian trades. Xero accounting sync, Gmail and Outlook OAuth inboxes, Messenger and WhatsApp channels, Leaflet dispatch mapping, Celery-driven recurring contracts that spawn real visits, live ABN lookup against the register, and an AI coach running genuine tool-calling with a trace on every reply. Sentry across the web app and all three workers.

• Django
• Celery
• Postgres
• Docker
• Xero API
• Flutter

@ Architect & Lead Engineer

Peer-to-peer rental marketplace with the money handled properly: Stripe Connect Express payouts, deposits held as an authorisation rather than a charge, hold re-authorisation, and identity verification. Owner-confirmed bookings, a two-sided dispute workflow with photo evidence, content moderation, a scoped role-based admin console, and programmatic SEO landing pages per category and suburb. 432 backend and 82 Flutter tests.

• Django
• PostGIS
• Stripe Connect
• Channels
• Preact
• Flutter

@ Founder & Architect

Subscription platform for pigeon breeders — multi-generation pedigrees, breeding and health records, PDF certificates, a cross-organisation public directory, and an AI scanner that reads pedigree cards. Web plus a Flutter mobile client, with hatch-check and ring-reminder push notifications.

• Django
• Flutter
• Celery
• Stripe
• Gemini
• FCM

@ Founder & Developer

Community safety and incident-reporting app: live red-zone mapping, admin-broadcast alerts, event pinning and a trust matrix governing who sees which report. Selected for the Bangladesh Innovation Fair 2026 in Dhaka.

• Flutter
• Firebase
• Riverpod
• Maps

@ Founder & Developer

Anonymous chat platform launched globally with images, an in-house moderation pipeline, a hosted moderator console and a 90-day retention policy set in the spec before a line was written. Realtime Database messaging with an AI conversation partner.

• Flutter
• Firebase RTDB
• Django
• AdMob

@ Founder & Architect

Bangladesh's pigeon marketplace, trading live with 48 registered sellers and a community wall. SVG pedigree trees, an algorithmic feed-formula generator, direct buyer-seller messaging, and a JWT REST API feeding a native Android client — the seventh year of a pigeon-platform thread running back to 2019.

• Django
• DRF
• JWT
• MySQL
• Android

@ Developer

Platform for a pigeon racing club running since 2003 — national and local race results with a searchable archive, a member registry, and a live auction house where fanciers bid on birds.

• Django
• MySQL
• Auctions

@ Architect & Developer

National pigeon registry searchable by ring number or bloodline, wrapped around an auction house, race results, a fancier directory and an editorial section. A Django monolith carrying registry, auctions, blog and races together.

• Django 4.2
• MySQL
• reCAPTCHA v3

@ IT, Data & Product Development

Field-survey collection and dairy-market analytics for a Bangladeshi research network. Three server-enforced roles — admin, researcher and farmer — feeding CSV-driven analytics dashboards used to study the national dairy sector.

• Django 5
• MySQL
• Analytics

@ Architect & Developer

Nutrition assistant that identifies food from a photo and logs it against your goals, with a premium tier, social sign-in and a scan pipeline tuned hard for latency.

• Flutter
• Firebase
• Cloud Functions
• Vision AI