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mahadizulfiker
résumé

Mahadi Zulfiker

Full-stack software engineer · Dhaka, Bangladesh · 3 years shipping production systems.

Download PDFmahade.adib45@gmail.com+880 1862 183566
Experience
  1. Full-Stack Software Engineer·SeloraXNov 2025 → Present
    • Built the SeloraX voice-AI call agent (realtime Bangla speech over SIP) and its self-serve platform: plans, prepaid billing, campaigns and a public API.
    • Primary author of the XCall AI assistant (~30k lines): an agent that runs calling campaigns from one chat, also served over MCP.
    • Sole author of Smart Sheba, a commerce and rewards platform with a ledger-backed wallet and rank engine.
    • Shipped SEO Studio and AI Marketing Studio; added the SEO/GEO layer and AI-consultation funnel on selorax.io.
    • Contributor to the core multi-tenant SaaS: backend, dashboard, and frontend.
  2. Full-Stack Engineer·TalktivityJun 2025 → Present
    • Core contributor across the React Native app, the Next.js web frontend (about a third of its code) and the Node backend (nearly 40% of commits).
    • Built the IELTS speaking and listening track end to end: mobile drills, web reports and the scoring APIs behind them.
    • Work across the realtime audio pipeline: LiveKit/WebRTC with Groq STT/LLM and Kokoro TTS.
    • Cut a 32% incomplete-score rate on AI reports to near zero by reworking the BullMQ scoring queue.
  3. Full-Stack Engineer·AnirixAug 2025 → Oct 2025
    • Developed backend services and frontend improvements with modern frameworks.
    • Worked across a distributed, remote team.
  4. Frontend Engineer·Softvence AgencyJun 2025 → Jul 2025
    • Built reusable component architecture and improved front-end performance.
  5. Co-Founder & Full-Stack Engineer·AMGoalJan 2025 → Aug 2025
    • Owned architecture, backend, frontend, and delivery.
  6. Data Annotator·Intelligent MachinesOct 2020 → Mar 2021
    • Produced high-quality labeled datasets and refined annotation workflows.
Selected work
  • Commerce ERPSole author

    Multi-tenant ERP for Bangladeshi online sellers: orders, couriers, stock, purchasing, finance and fraud in one system.

  • TalktivityCore contributor

    Real-time voice-AI English coach: talk to an AI tutor, get a CEFR report, replay every mistake.

  • SeloraX Voice AIPrimary author

    Bangla AI call agent, grown into a multi-tenant platform merchants run themselves.

  • XCall AI AssistantPrimary author

    An in-app AI agent that runs a whole calling business from one chat in Bangla or English, also exposed over MCP.

  • Smart ShebaSole author

    Commerce and rewards platform with a ledger-backed wallet, health cards and a rank and commission engine, built solo.

  • NewTech EngineeringPrimary author

    Company website + admin CMS for a manufacturer, staff manage everything, no dev needed.

Skills
Frontend
React · Next.js · TypeScript · Tailwind CSS · Redux · shadcn/ui · React Native
Backend
Node.js · Express · NestJS · Python · REST · GraphQL · Prisma
Data
PostgreSQL · MongoDB · MySQL · Redis
Platform & DevOps
Docker · Vercel · CI/CD · AWS S3 / R2 · npm packages · Git
AI & Realtime
LiveKit / WebRTC · Gemini · Groq · LLM integration · TTS/STT
Payments
Stripe · SSLCommerz · AamarPay · Lemon Squeezy · EPS
Education
  • BSc in Computer Science & Engineering (Honors)Uttara University · 2027
  • HSC & SSCUttara High School & College · 2023
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