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TH

Full-Stack Engineer at EraVend GmbH & Co. KG

Hello, I'm

Tanvir Hasan Tamal

Full-Stack Software Engineer

I build scalable, multi-tenant SaaS platforms — from real-time systems and payment integrations to complex data workflows.

View my workDownload Resume
Portrait of Tanvir Hasan Tamal
Dhaka, Bangladesh
Companies
3
Modules shipped
30+
Projects built
10+
AIUB CS Fest 2024
1st
  • Next.js
  • React
  • TypeScript
  • NestJS
  • Node.js
  • PostgreSQL
  • MongoDB
  • Prisma
  • Redis
  • Tailwind CSS
  • Docker
  • Stripe

About me

Engineering products that are fast, reliable and built to scale.

I'm a full-stack software engineer who enjoys turning complex business requirements into fast, reliable products. My day-to-day lives across the stack: Next.js and React on the frontend, NestJS and Express on the backend, with MongoDB and PostgreSQL underneath.

Over the past few years I've shipped production features for multi-tenant SaaS products used by multiple companies — chat, notifications, payroll, sales, finance and more — while caring deeply about clean architecture, performance and developer experience.

  • Multi-tenant SaaS

    Module architecture for platforms serving many companies from one codebase.

  • Real-time systems

    WebSocket-driven chat, notifications and live data flows across services.

  • Payments & integrations

    Secure Stripe Checkout, REST APIs and automated email workflows.

  • Performance & quality

    Caching, rate limiting, SEO and fixing high-priority production issues.

Experience

Where I've been building

Remote roles shipping production features for multi-tenant SaaS platforms and client products.

  1. Full-Stack Engineer

    EraVend GmbH & Co. KG

    Königsbrunn, Germany · Remote

    CurrentJan 2026 — Present
    • Engineering and maintaining features for a multi-tenant Employee Management System (EMS) serving multiple companies from a unified platform.
    • Architected and delivered core modules — Chat, Notifications, Email, Sales and Finance — across both the Next.js frontend and NestJS backend.
    • Built real-time communication with WebSockets and automated email workflows, integrating sales and finance data flows across microservices.
    • Improved system stability through targeted UI enhancements and extensive bug resolution across critical modules.
    • Next.js
    • NestJS
    • TypeScript
    • WebSockets
    • Microservices
    • MongoDB
    • Monorepo

  2. Junior Full-Stack Developer

    Techy's UK

    Remote

    Jul 2025 — Dec 2025
    • Developed and maintained full-stack features across multiple client platforms using Next.js, NestJS, Express.js, Prisma and PostgreSQL.
    • Engineered mobile-responsive UI components, integrated scalable REST APIs and optimized key application workflows for performance.
    • Deployed secure Stripe payment integrations, resolved build issues and remediated post-deployment problems on VPS environments.
    • Enhanced client-site SEO and OpenGraph metadata, improving search and social visibility.
    • Next.js
    • NestJS
    • Express.js
    • Prisma
    • PostgreSQL
    • Stripe

  3. Software Engineer Trainee

    Deepchain Labs

    Remote

    Oct 2024 — Feb 2025
    • Contributed to Kazentic, a multi-tenant SaaS remote office suite with CRM, HRM, Payroll, Billing, Team and Projects modules.
    • Developed backend features for the Calendar and Teams modules using NestJS, Mongoose and MongoDB.
    • Built and integrated APIs for 10+ modules including Calendar, Forms, Organization Settings and Payroll.
    • Implemented secure REST APIs, improved module performance and fixed high-priority production issues.
    • NestJS
    • MongoDB
    • Mongoose
    • Next.js
    • REST API

Skills & tools

A modern, end-to-end toolkit

The languages, frameworks and tools I use to take products from idea to production.

Languages

Typed, pragmatic and fluent across paradigms.

  • TypeScript
  • JavaScript
  • C#
  • C++
  • Java
  • Python
  • PHP
  • SQL

Frontend

Accessible, responsive and fast user interfaces.

  • Next.js
  • React
  • Tailwind CSS
  • shadcn/ui
  • HeroUI
  • Bootstrap
  • Zustand
  • Redux

Backend

Robust APIs and services that scale.

  • NestJS
  • Node.js
  • Express.js
  • Prisma
  • TypeORM
  • Mongoose
  • Swagger
  • WebSockets

Data & Performance

Reliable storage, caching and payments.

  • PostgreSQL
  • MongoDB
  • MySQL
  • MSSQL
  • Redis
  • Stripe

Tools & DevOps

Shipping with confidence, end to end.

  • Git
  • GitHub
  • Docker
  • Postman
  • Vercel
  • Linux

Web3

Blockchain research and decentralized apps.

  • Solana
  • Solidity

Selected work

Projects I'm proud of

From award-winning blockchain research to full-stack web platforms.

  • 03

    Travel Planner

    A travel planning web app with an ASP.NET Web API backend built on an N-tier architecture and SOLID principles, paired with a responsive Next.js frontend.

    • ASP.NET
    • Next.js
    • SQL Server
    • N-Tier
    Sourcefor Travel Planner (opens in a new tab)
  • 05

    GameStop

    A niche e-commerce site for PC and gaming gear with customer accounts, purchasing, and an admin dashboard to manage products, inventory and orders.

    • PHP
    • MySQL
    • AJAX
    • HTML
    • CSS
    Sourcefor GameStop (opens in a new tab)
More on GitHub

Education

Academic foundation

A computer science degree focused on software engineering, web technologies and blockchain research.

B.Sc. in Computer Science & Engineering

American International University-Bangladesh (AIUB)

2021 — 2025
Major
Software Engineering
Thesis
Towards a Next Generation Blockchain: A Framework for Future Innovation and Enhanced Efficiency
Relevant courses
Advanced Web Technologies (NestJS, Next.js, PostgreSQL), Advanced Programming with .NET (Entity Framework, SOLID, N-Tier), Software Requirement Engineering
  • 2018 — 2020

    Higher Secondary Certificate (HSC)

    Dhaka Imperial College

  • 2018

    Secondary School Certificate (SSC)

    Faizur Rahman Ideal Institute

Recognition

Achievements & leadership

Competitions won along the way, and years of leadership and service through Bangladesh Scouts.

  • 2024

    Champion — App Showcasing, AIUB CS Fest

    First place for delivering a decentralized Layer-1 blockchain with the DCLScan explorer for real-time network monitoring.

  • 2023

    Runner-up — Jarvis 4.0 Intra ACC Carnival

    Idea Prototyping & App Showcasing (Senior Category) with an AR-based virtual try-on prototype to enhance e-commerce UX.

  • 2013

    Shapla Cub Award

    The highest honor in the Cub section of Bangladesh Scouts, recognizing leadership, discipline and contributions to scouting.

Volunteer experience

Service and leadership beyond the keyboard.

6 activities · 2013 — 2022
  1. 012022

    AIUB Cyber Gaming Fest

    AIUB

  2. 02Apr 2018

    President Scout Award National Evaluation Camp

    Bangladesh Scouts

  3. 03Oct 2016

    JOTA-JOTI Jamboree

    Bangladesh Scouts

  4. 042016

    Patrol Leader Training Camp

    Bangladesh Scouts

  5. 05Apr 2014

    9th Bangladesh & 1st SAANSO Scout Jamboree

    Bangladesh Scouts

  6. 06Jan — Feb 2013

    10th National Rover Moot & 5th National COMDECA

    Bangladesh Scouts

Contact

Let's build something great together

Have a project, a role or just want to say hi? My inbox is always open — I'll get back to you as soon as I can.

Say helloConnect on LinkedIn