Senior Software Engineer at Luminous Labs · Dhaka, Bangladesh

Alamin Biswas PlabonFull-stack software engineer.

Hi, I'm Plabon. I build production SaaS end to end, from SIP telephony and real-time voice AI to the dashboards people use every day. The products I've shipped serve real users in the US, France and Bangladesh.

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Plabon (Alamin Biswas Plabon), software engineer in Dhaka
3+ years
shipping production software
7 products
live with real users
3 countries
US, France and Bangladesh

About

About Plabon

I'm Alamin Biswas Plabon, and most people just call me Plabon. I'm a software engineer in Dhaka, Bangladesh, and I studied Computer Science and Engineering at the University of Liberal Arts Bangladesh (2019–2023).

I came to software through competitive programming: I was runner-up in the national Takeoff Programming Contest 2021. Since then I've worked across .NET, Ruby on Rails and the Node.js/TypeScript stack, led backend work for RentYard in the US, and today I build real-time voice AI at Luminous Labs.

Selected work

Live products I've built

Every project here is in production. Click through and use them.

VoiceNimble

AI voice calling automation · SaaS

  • Businesses deploy AI voice agents that hold real-time phone conversations and run high-volume outbound campaigns.
  • Core voice infrastructure: SIP/telephony and call routing, real-time speech recognition, LLM conversations, AI voice synthesis, IVR, campaigns and call analytics.
  • Multi-tenant architecture supporting multiple AI providers and voice vendors, business knowledge bases and live customer data.
  • Node.js
  • TypeScript
  • MongoDB
  • React
  • Jambonz
  • SIP
  • LLM
  • STT / TTS
voicenimble.com ↗  ·  Shopify app ↗

RentYard

Property rental SaaS · US market

Landlord and tenant platform for listings, applications, leases and online rent collection, with role-based access.

  • Next.js
  • Node.js
  • PostgreSQL
  • AWS
rentyard.com ↗

AlertComm

Real-time alerts · Web + mobile

Alert and messaging platform with a React web app and a React Native mobile app, push notifications and state synced across devices.

  • React
  • React Native
  • Node.js
  • Push
app.alertcomm1.com ↗

Beige

Modern web product

End-to-end ownership of design, frontend, backend and the deployment pipeline, built with an AI-assisted workflow.

  • Next.js
  • Node.js
  • Cloud
beige.app ↗

AristoCar

Automotive platform · France

Customer-facing automotive site with a localized French experience, fast page loads and an SEO-friendly Next.js architecture.

  • Next.js
  • TypeScript
  • Node.js
aristocar.fr ↗

ChurchScroll

Faith-tech content platform

Community content platform with role-based dashboards for creators and admins, and optimized media delivery.

  • Node.js
  • PostgreSQL
churchscroll.com ↗

Skin cancer detection

Machine learning · Capstone

Hybrid EfficientNet-B4 + SVM model reaching 97.91% accuracy on the ISIC 2021 dataset, with augmentation and hyperparameter tuning.

  • Python
  • TensorFlow
  • Keras
University capstone

Experience

Where I've worked

  1. Dec 2025 – Present

    Senior Software Engineer · Luminous Labs, DhakaNow

    End-to-end delivery of in-house SaaS products (VoiceNimble, Beige, AlertComm) for international users: architecture, secure REST APIs, database design, performance work and code reviews.

  2. Mar 2025 – Dec 2025

    Technical Lead Officer · RentYard Inc, USA

    Built CI/CD pipelines that cut release time by 40%, designed REST APIs in Node.js, Express and NestJS on PostgreSQL, and introduced automated testing that raised coverage by 30%.

  3. May 2024 – Mar 2025

    Software Engineer (Team Lead) · Spark Tech, Dhaka

    Ruby on Rails APIs serving thousands of active users, React and Next.js frontends, and secure payment-gateway integrations.

  4. Sep 2023 – Dec 2023

    Software Engineer · DevSpace, Uttara

    Multi-tenant Ruby on Rails + PostgreSQL applications with role-based auth and tuned Active Record queries.

  5. Mar 2023 – Sep 2023

    Software Engineer · ChimbukIT

    ASP.NET Core / C# / SQL Server enterprise web apps with normalized schemas and optimized stored procedures.

Skills

What I work with

Highlighted: the tools I use every day.

Languages & frameworks

  • TypeScript
  • JavaScript
  • Node.js
  • Next.js
  • React
  • Express
  • NestJS
  • React Native
  • Ruby on Rails
  • Tailwind CSS
  • Redux
  • .NET Core / C#

Data

  • PostgreSQL
  • MongoDB
  • MySQL
  • SQL Server

Voice & AI

  • LLM integration
  • Speech-to-text / Text-to-speech
  • SIP / telephony
  • Jambonz
  • AI-assisted development
  • TensorFlow / Keras

Platform & practice

  • Git / GitHub
  • CI/CD
  • Docker
  • AWS
  • Linux
  • Shopify apps (App Bridge, Polaris)
  • Automated testing
  • Code review
  • Agile / Scrum

Achievements

Competitions

  • Runner-up, Takeoff Programming Contest 2021 (national)
  • 7th place, Takeoff Programming Contest 2020 (national)
  • Finalist, CTO Forum Hackathon 2022 (national)
  • Active competitive programmer on Beecrowd; HackerRank certified in Data Structures & Algorithms

Education

University of Liberal Arts Bangladesh

  • B.Sc. in Computer Science and Engineering, 2019 – 2023
  • Languages: Bangla (native), English (professional working proficiency)

Contact

Let's build something.

Open to interesting products, contract work and full-time roles. Email or call me.

Email me Call me GitHub LinkedIn
alaminbiswasplabon98@gmail.com
+880 1767-517978