Who is Mahadi Zulfiker?

Mahadi Zulfiker is a full-stack software engineer based in Dhaka, Bangladesh, with 3 years building production systems end to end: realtime voice-AI agents, commerce platforms with wallet ledgers, and multi-vendor marketplaces.

Is Mahadi Zulfiker available for hire?

Yes. He is open to full-time software engineering roles and select freelance work, based in Dhaka (GMT+6) and working with remote teams. Email is the fastest way to reach him and he replies within a day.

Has Mahadi Zulfiker built voice AI that speaks Bangla?

Yes. He is the primary builder of SeloraX Voice AI, an AI phone agent that handles inbound and outbound calls over a SIP gateway, using Gemini Live for reasoning and a custom Bangla text-to-speech voice.

Can Mahadi Zulfiker work with remote teams outside Bangladesh?

Yes. He shipped remotely with Anirix, a Korea-based team, from August to October 2025, and works remotely with Talktivity on a realtime voice-AI English tutor.

Where did Mahadi Zulfiker study?

He is studying for a BSc in Computer Science and Engineering at Uttara University in Dhaka, from 2024 to 2027, alongside full-time engineering work.

about

Mahadi Zulfiker

Full-stack software engineer, Dhaka, Bangladesh, GMT+6.

03about

Engineer who ships the whole thing

I’m Mahadi Zulfiker, a full-stack engineer with 3 years building production systems end-to-end: architecture, backend, interface, and deployment. Most of my work lives where things are hard to fake: realtime voice agents, wallet ledgers, multi-vendor marketplaces.

I like problems with a correctness cost, money that has to add up, a call that has to answer in Bangla under 300 ms, a score report that can’t silently fail. I’d rather write the stricter version that stays right than the quick one that drifts.

Comfortable owning a product solo, and comfortable being one of eight on a platform. I care about the details a reviewer actually notices, the empty state, the focus ring, the number that lines up.

Focus: Voice-AI · Commerce · Platforms
Now: Full-stack engineer @ SeloraX
Stack: Next.js · Node · PostgreSQL · RN
Based: Dhaka, Bangladesh (GMT+6)
Study: BSc CSE, Uttara University

04experience

Where I’ve worked

Nov 2025 → PresentHybrid · Dhaka, Bangladesh
Full-Stack Software Engineer
SeloraX
Building AI and commerce products end-to-end across the PERN/Next.js stack.
- Built the SeloraX voice-AI call agent engine (realtime Bangla speech over a SIP gateway).
- Sole author of Smart Sheba, a Daraz-style marketplace with a wallet and tree commission engine.
- Shipped SEO Studio and AI Marketing Studio tools; published internal npm packages.
- Contributor to the core multi-tenant SaaS: backend, dashboard, and frontend.
shipped there
and 6 more
Jun 2025 → PresentRemote
Full-Stack Engineer
Talktivity
Building a realtime voice-AI English tutor that scores spoken English and returns a CEFR report.
- Own the React Native / Expo mobile app and over half of the Next.js web frontend.
- 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.
shipped there
- Talktivity
Aug 2025 → Oct 2025Remote · Korea
Full-Stack Engineer
Anirix
Built and optimized scalable full-stack features across backend services and UI.
- Developed backend services and frontend improvements with modern frameworks.
- Worked across a distributed, remote team.
focus
- Backend services
- Frontend UI
- Distributed remote team
Jun 2025 → Jul 2025Dhaka, Bangladesh
Frontend Engineer
Softvence Agency
Delivered responsive, client-ready interfaces with a focus on UI polish.
- Built reusable component architecture and improved front-end performance.
focus
- Client-ready interfaces
- Reusable components
- Front-end performance
Jan 2025 → Aug 2025Bangladesh
Co-Founder & Full-Stack Engineer
AMGoal
Co-founded and built the product end-to-end.
- Owned architecture, backend, frontend, and delivery.
shipped there
- Question Management

before engineering

Data Annotator·Intelligent MachinesOct 2020 → Mar 2021

Education

BSc in Computer Science & Engineering (Honors)Ongoing
Uttara University · 2024–2027
HSC & SSC
Uttara High School & College · 2023

05toolkit

What I build with

Frontend

ReactNext.jsTypeScriptTailwind CSSReduxshadcn/uiReact Native

Backend

Node.jsExpressNestJSRESTGraphQLPrisma

Data

PostgreSQLMongoDBMySQLRedis

Platform & DevOps

DockerVercelCI/CDAWS S3 / R2npm packagesGit

AI & Realtime

LiveKit / WebRTCGeminiGroqLLM integrationTTS/STT

Payments

StripeSSLCommerzAamarPayLemon SqueezyEPS

06questions

Straight answers

Who is Mahadi Zulfiker?: Mahadi Zulfiker is a full-stack software engineer based in Dhaka, Bangladesh, with 3 years building production systems end to end: realtime voice-AI agents, commerce platforms with wallet ledgers, and multi-vendor marketplaces.
Is Mahadi Zulfiker available for hire?: Yes. He is open to full-time software engineering roles and select freelance work, based in Dhaka (GMT+6) and working with remote teams. Email is the fastest way to reach him and he replies within a day.
Has Mahadi Zulfiker built voice AI that speaks Bangla?: Yes. He is the primary builder of SeloraX Voice AI, an AI phone agent that handles inbound and outbound calls over a SIP gateway, using Gemini Live for reasoning and a custom Bangla text-to-speech voice.
Can Mahadi Zulfiker work with remote teams outside Bangladesh?: Yes. He shipped remotely with Anirix, a Korea-based team, from August to October 2025, and works remotely with Talktivity on a realtime voice-AI English tutor.
Where did Mahadi Zulfiker study?: He is studying for a BSc in Computer Science and Engineering at Uttara University in Dhaka, from 2024 to 2027, alongside full-time engineering work.