Rahat.
Open to opportunities

Rahat Ahmed Chowdhury

Full-stack developer crafting SaaS products & meaningful digital experiences

Full-stack Developer · Pythonista · IEEE Published Researcher

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Rahat Ahmed Chowdhury

About Me

Building products that solve real problems

I build software because I love the moment an idea turns into something real — something people actually click, use, and rely on.

That curiosity pulled me deep into SaaS — multi-tenant platforms, real-time systems, role-based architectures. There's something satisfying about designing a product that quietly handles complexity so users don't have to.

Alongside my own projects, I take on freelance work that keeps me grounded — reminding me that good software isn't just clean code, it's about understanding what people actually need.

I'm a believer in clean code, honest work, and lifelong learning. Always curious, always shipping.

Toolkit

Skills & Technologies

A snapshot of the languages, frameworks, and tools I reach for to ship products end-to-end.

JavaScriptPythonPHPSQLReactNext.jsHTML5CSS3TailwindBootstrapResponsive DesignNode.jsExpressDjangoDjango REST FrameworkFlaskRESTful APIsMySQLPostgreSQLSQLiteSocket.ioJWTSession-based AuthRole-Based Access ControlGitGitHubPostmanFigmaRenderNetlifyHerokuVercelMulti-tenant SaaS ArchitectureSystem DesignSoftware ArchitectureAuthentication & AuthorizationAPI DocumentationScalingEnterprise BlockchainLaravelAWSDockerJavaScriptPythonPHPSQLReactNext.jsHTML5CSS3TailwindBootstrapResponsive DesignNode.jsExpressDjangoDjango REST FrameworkFlaskRESTful APIsMySQLPostgreSQLSQLiteSocket.ioJWTSession-based AuthRole-Based Access ControlGitGitHubPostmanFigmaRenderNetlifyHerokuVercelMulti-tenant SaaS ArchitectureSystem DesignSoftware ArchitectureAuthentication & AuthorizationAPI DocumentationScalingEnterprise BlockchainLaravelAWSDocker

Languages

JavaScriptPythonPHPSQL

Frontend

ReactNext.jsHTML5CSS3TailwindBootstrapResponsive Design

Backend

Node.jsExpressDjangoDjango REST FrameworkFlaskRESTful APIs

Database

MySQLPostgreSQLSQLite

Real-time & Auth

Socket.ioJWTSession-based AuthRole-Based Access Control

Tools

GitGitHubPostmanFigmaRenderNetlifyHerokuVercel

Concepts

Multi-tenant SaaS ArchitectureSystem DesignSoftware ArchitectureAuthentication & AuthorizationAPI DocumentationScalingEnterprise Blockchain

Familiar With

LaravelAWSDocker

Featured Work

Projects

Selected work from my journey — SaaS products and tools built to solve real problems.

Velo
SaaSReal-timeMulti-tenant

Velo

SaaS Workflow Management

Multi-tenant project & team workflow platform with Kanban, real-time updates, role-based access, and subscription plans.

Next.jsNode.jsExpressSocket.ioPostgreSQL
Live DemoPrivate repo
ShopFlow
SaaSPOSAnalytics

ShopFlow

SaaS Inventory & POS

Multi-shop inventory, POS, and sales analytics for small stores and e-commerce.

Next.jsNode.jsExpressPostgreSQL
Live DemoPrivate repo
UniMarx
EducationDjango

UniMarx

University Result Management System

University result management with batch / semester / course management, attendance, and gradesheet PDF generation.

DjangoHTMLCSSJavaScriptBootstrapPostgreSQL

Career Path

Experience

Independent

Freelance Software Developer

Jan 2025 – Present · Sylhet, Bangladesh

  • Conducted requirement analysis, project scoping, and technical proposals for multiple local clients
  • Building an online library management system for Islamic World BD using React and Node.js
  • Developing a booking & appointment platform for Hijama Ruqyah Foundation
  • Building a community health platform (blog, workshops, Q&A, user accounts) for Natural Health Care

Sylotea

Founder

Mar 2025 – Present · Sylhet, Bangladesh

  • Founded and operating an online business selling premium Sylhet tea leaves
  • Managing product sourcing, branding, digital marketing, and customer relations end-to-end

RootSoft IT

Software Engineer

May 2024 – Nov 2024 · Sylhet, Bangladesh

  • Contributed to the MPhil/PhD admission management system of Jahangir Nagar University (Laravel)
  • Redesigned and modified the official website of an AI-based metric application (WordPress)
  • Implemented client-specific features for a food ordering application (WordPress)
  • Conducted requirement-gathering meetings with foreign clients and communicated project updates
  • Tested core functionalities and APIs across multiple production projects

Actuate Research & Consulting (ARC)

Software Developer & IT Instructor

Sep 2020 – Apr 2022 · Sylhet, Bangladesh

  • Built an in-house e-commerce platform as ARC's flagship product (Django)
  • Designed and deployed ARC's official corporate website (WordPress)
  • Attended B2B client meetings to gather IT support and service-delivery requirements
  • Translated business logic into functional software during R&D for multiple client projects
  • Mentored junior teammates on project-specific technologies and delivery standards

Academic Background

Education

BSc in Computer Science & Engineering

Sylhet Engineering College (SUST Affiliated)

2024CGPA 3.55 / 4.00

Higher Secondary Certificate (HSC)

Scholarshome, Sylhet

2018GPA 4.58 / 5.00

Secondary School Certificate (SSC)

Blue Bird School & College, Sylhet

2016GPA 5.00 / 5.00

Academic Work

Research & PublicationsIEEE

xCRM: Blockchain Interoperable Crime Report Management System Utilizing Hyperledger Cacti & Private Data Collection (PDC)

2023IEEE
View on ResearchGate

SafetyNet: A Decentralized Police Complaint Management System for Bangladesh Using Blockchain Technology

2024IEEE
View on ResearchGate

S-DrivingRecords: Enhancing Trust and Transparency in Driving Records Using Hyperledger Fabric

2024IEEE
View on ResearchGate

Curriculum Vitae

My Resume

Rahat Ahmed Chowdhury

Full-stack Developer

Get a copy of my resume

Download my resume to learn more about my experience, skills, and projects. Available as a PDF for easy viewing and sharing.

Last updated: April 2026

Get In Touch

Contact

I'd love to hear from you

Whether you have a question, want to connect, or just want to say hi — my inbox is always open. Drop me a message and I'll get back to you as soon as I can!

Location

Sylhet, Bangladesh