Ship the whole slice
A feature is not done at the API boundary. Schema, endpoint, state and the pixel someone actually clicks are one unit of work, and I would rather own all four than hand off half.
Available for work · Dhaka, BD
Rafiuzzaman Rion Software Engineer
I build the whole system: schema, API and interface. I care how every layer feels to use, because the interesting problems live between them, where a query shape decides whether a screen can ever feel instant.
- Now
- Enterprise modules at Next Level Media BD
- Stack
- TypeScript · Next.js · Node · MongoDB
MD. Rafiuzzaman Rion
Software Engineer
24
Shipped
0+
Years building for the web
0
Projects shipped to production
0+
Enterprise modules delivered
0
Roles held
Full-stack engineeringAPI designSchema modellingNext.jsDesign systemsPerformanceInternal toolsInterface motion
About
An engineer who refuses to stop at the API boundary
I work across the full stack because the interesting problems live between the layers. Most of my time goes to enterprise modules that real teams depend on every day: task and goal management, employee portals, marketing suites, file systems. The work is less about novelty than about making complicated things feel ordinary to use.
I have shipped 24 projects to production since 2022, and the ones I am proudest of are the ones nobody had to be trained to use.
- Started
- 2022
- Shipped
- 24
- Domain
- SaaS
- Method
- Small batches
MD. Rafiuzzaman Rion
Software Engineer
Fast is a design decision
Query shape and aggregation strategy decide whether an interface can ever feel instant. Performance gets designed in at the data layer, not filed as a ticket after launch.
Leave the codebase legible
The next engineer is a user too. Clear naming, honest boundaries and comments that explain the why outlast any clever abstraction.
Skills & tech stack
Three layers, one person accountable for all of them
A request travels down through the interface, the service boundary and the data model. Each layer constrains the one above it, which is why I would rather own the whole path than optimise a slice of it.
- Frameworks
- React
- Next.js
- React Native
- Redux
- Tailwind CSS
- Bootstrap
- FastAPI
- Node.js
- Express
- Languages
- TypeScript
- Python
- JavaScript
- HTML5
- CSS3
- Databases
- MongoDB
- MySQL
- PostgreSQL
- Infrastructure
- AWS S3
- Tooling
- Git
Front-end
Component systems, state that stays predictable under load, and motion that explains rather than decorates.
L1 · What people touch
React
Next.js
TypeScript- React Native
Redux
Tailwind CSS
Bootstrap
Backend
REST and async boundaries in Python and Node, authentication that fails closed, and integrations that degrade gracefully instead of taking the page down with them.
L2 · What holds it together
Python
FastAPI
Node.js
Express
JavaScript
HTML5
CSS3
Database & Tools
Schema design and aggregation pipelines: the layer that quietly determines whether the interface above it can ever feel fast.
L3 · What decides the ceiling
MongoDB
MySQL- AWS S3
Git
PostgreSQL
Selected work
Products that went live and stayed live
Client platforms, internal tools and product surfaces, built end to end and then maintained through the part nobody photographs.
References
What the people who shipped alongside me say
He took the inventory module from a vague brief to something our warehouse staff could use without training. When the stock reconciliation logic turned out to be wrong in an edge case, he found it himself and shipped the fix before we noticed.
Nadia Karim
Product Lead · Northwind Systems
We handed him a Python service and a React front end that had drifted apart over two years. He reconciled the contracts between them, wrote the schema once and used it on both sides, and the whole class of validation bugs disappeared.
Tanvir Hasan
Engineering Manager · Meridian Labs
What stood out was that he pushed back. Twice he told us a feature we had asked for would cost more than it returned, explained why, and proposed something smaller that solved the actual problem. That is rarer than the code.
Sarah Whitfield
Founder · Kestrel Digital
Experience
Roles where I owned the outcome, not just the ticket
Three roles, all full-stack, all measured by what actually reached users.
- 01Dec 2024 - Present
Full-Stack Engineer
Next Level Media BDonsite
- Engineered 8+ enterprise modules, including Task & Goals Management, Employee Portal, Marketing Suite, Community Hub, Social Integration, Calendar, and File Manager for "MyManager" and "MM Client" platforms.
- Optimized performance using MongoDB aggregation pipelines, dramatically improving query response times across the Task and Goals, Employee, and Marketing modules.
- Architected scalable REST APIs and implemented Redux Toolkit for state management across interconnected modules.
- Resolved 100+ critical production bugs across the whole project, including Task & Goals Management, File Manager, and Calendar systems, maintaining high application reliability.
- Collaborated to build drag-and-drop Web Builder and Form Builder with real-time preview, enabling non-technical users to create pages and forms without coding
- Collaborated with cross-functional teams in Agile sprints to deliver user-centric solutions aligned with business requirements.
- 02Oct 2025 - Feb 2026
Full-stack Web Developer
Lipika AIremote
- Engineered comprehensive AI-powered writing enhancement platform integrating multiple Large Language Models including ChatGPT, Claude, Grok, Gemini, and DeepSeek for intelligent content generation and refinement.
- Developed full stack paraphrasing solution replicating QuillBot functionality with advanced text rewriting capabilities, implementing both frontend interface and backend processing using Next.js 16 and Node.js.
- Built grammar correction system similar to Grammarly featuring real-time error detection, contextual suggestions, and writing style improvements across frontend and backend architectures.
- Implemented AI content detection bypass tool HixBypass and integrated GPTZero for AI-generated content verification, ensuring comprehensive content authenticity analysis.
- Architected scalable backend APIs using Node.js and Express.js with MongoDB database, handling high-volume text processing requests and managing complex LLM API integrations.
- Designed responsive user interfaces using TypeScript, Tailwind CSS, and Next.js 16, delivering seamless user experiences for multiple AI-powered writing tools within a unified platform.
- 03Jun 2024 - Dec 2024
Full-stack Web Developer
Hit solutiononsite
- Developed 3+ responsive web applications using Next.js, React.js, Node.js, and Express.js with API integration via Axios and real-time updates using React Query.
- Developed 3+ responsive web applications using Next.js, React.js, Node.js, and Express.js with API integration via Axios and real-time updates using React Query
- Implemented secure authentication systems using JWT, NextAuth, and Firebase for robust user data protection and session management.
- Designed visually engaging UIs using Tailwind CSS, Bootstrap, DaisyUI, and Framer Motion, creating smooth animations and intuitive user experiences.
- Integrated payment gateways (SSLCommerz, Stripe) for e-commerce solutions, handling secure transaction processing and order management.
Code
A habit, kept in public since 2022
Client work, internal tools and the experiments that never shipped. Most of it is private or unglamorous; the point is the consistency, not the star count.
50
Public repositories
4+
Years on GitHub
5
Languages in use
What it is written in
- JavaScript51%
- TypeScript24%
- HTML18%
- CSS4%
- Python2%
Education
Where the fundamentals came from
2020 - 2024
B.Sc in Computer Science and Engineering
World University of Bangladesh
Focused on software engineering, data structures, algorithms, and web technologies.
Available for work
Have something worth building?
Tell me what you are trying to ship and where it is stuck. I reply to everything within a day.
+8801751073892