Available for opportunities

Manlin Roswa R

Full Stack Developer · UI/UX Designer · SaaS Product Builder
CS Engineering graduate who designs, builds, and ships production SaaS platforms end-to-end — from Figma wireframe to live deployment. I turn complex problems into clean, scalable digital products.

View My Work ↓ Download Resume ⬇ Get In Touch

Manlin Roswa R

Full Stack Developer · UI/UX Designer · SaaS Builder

Projects

Live SaaS

Certs

React.js Node.js Flutter Figma MongoDB

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Manlin Roswa R — Full Stack Developer and UI/UX Designer

Madurai, India

Live SaaS Platforms Shipped

About Me

Crafting Digital Experiences That Matter

I'm a Computer Science graduate from AAACET, Sivakasi, with a deep passion for building things that live on the internet. My work sits at the intersection of clean engineering and thoughtful design — I care equally about how an application works under the hood and how it feels to the person using it.

From architecting a real-time GPS fleet tracking system with sub-3-second location updates, to launching two live SaaS platforms — NammaEventz and SchoolSync ERP — that serve real customers today, I bring both depth and breadth to every project. I've worked across the full stack: React frontends, Node/Express APIs, MongoDB databases, Flutter mobile apps, and Socket.IO powered real-time features.

What sets my work apart is end-to-end ownership — I design the interface in Figma, architect the system, write the code, and ship it to production. On NammaEventz I served as product designer, full-stack developer, and system architect; on SchoolSync ERP I added mobile app development to that list, building the teacher-facing Flutter app myself.

Rooted in Madurai, Tamil Nadu, I'm actively seeking frontend, full-stack, or software engineering roles with teams that value craft, collaboration, and continuous learning. I'm open to relocating for the right opportunity.

🚀
Ships Real Products
Two live SaaS platforms in production today — NammaEventz and SchoolSync ERP — serving real users, not just portfolio demos.

🎨
Design + Code
Fluent in Figma, Adobe XD, and Illustrator — I bridge the gap between design and engineering.

📱
Cross-Platform
Builds native mobile experiences with Flutter alongside web apps — one engineer, full coverage.

☁️
Cloud-Ready
AWS Cloud Architecture certified, with hands-on experience deploying and scaling on MongoDB Atlas.

Madurai, Tamil Nadu, India · Open to Relocate

Technical Skills

My Toolkit

A carefully curated stack for building fast, beautiful, and scalable digital products — from pixel-perfect UIs to robust backend APIs.

⚛️

Frontend Development

React.js JavaScript ES6+ HTML5 CSS3 Tailwind CSS Bootstrap Responsive Design Component Architecture

🖥️

Backend Development

Node.js Express.js REST API Design Socket.IO JWT Auth WebSockets RBAC

🗄️

Databases

MongoDB MongoDB Atlas Mongoose ODM MySQL SQL Schema Design Query Optimisation

🎨

UI/UX Design

Figma Adobe XD Adobe Illustrator Wireframing Prototyping User Flows Design Systems

🛠️

Tools & Technologies

Git GitHub GitLab VS Code Canva Pro Agile Unit Testing

📱

Mobile & Languages

Flutter JavaScript Java Python Cross-Platform Apps

💳

SaaS & Cloud Deployment

Razorpay Integration AWS Cloud Architecture Cloud Deployment Subscription Billing Scalable Architecture

Featured Work

Products I've Shipped to Production

Live SaaS platforms serving real customers, plus full-stack and design projects that show range across the product development lifecycle.

Live in Production

Event Management SaaS ● Live in Production

NammaEventz

A full-ecosystem booking platform connecting customers with event service providers

NammaEventz solves a fragmented market problem: finding and booking trustworthy event vendors typically means juggling dozens of disconnected contacts. I designed and built a single digital ecosystem where customers discover, compare, and book photographers, caterers, decorators, makeup artists, and full event planners — while vendors manage their business through a dedicated dashboard.

The Challenge

Event services in the region were fragmented across word-of-mouth referrals and informal listings, with no unified way for customers to compare providers or for vendors to manage bookings and inquiries at scale.

My Solution

A subscription-based marketplace architecture with secure authentication, vendor profile management, and an integrated payment flow — built to scale from a regional launch to a multi-category platform covering 9+ service verticals.

Vendor discovery & comparison across 9+ categories

End-to-end service booking system

Customer inquiry management pipeline

Razorpay-integrated subscription billing

Admin dashboard for platform oversight

Mobile-friendly, fully responsive experience

🚀 Business impact: Brings customers and event service providers onto one platform, improving vendor visibility and cutting the friction out of service discovery and booking.

React.js Node.js Express.js MongoDB Razorpay REST APIs

Visit Live Site ↗ 🧩 Designer · Full Stack Dev · System Architect

School Management ERP ● Live in Production

SchoolSync ERP

A unified digital platform for academic, administrative, and communication workflows

Schools typically run admissions, attendance, academics, and parent communication through disconnected paper trails and spreadsheets. SchoolSync ERP replaces that with one centralized system serving four distinct stakeholders — administrators, teachers, students, and parents — including a dedicated mobile app for teachers.

The Problem

Manual, paper-based processes across admissions, attendance, and academic record-keeping created administrative overhead and weak communication between school staff and parents.

The Solution

A role-based ERP system with web dashboards for administrators and a native Flutter mobile app for teachers — built on a secure, cloud-deployed architecture that keeps every stakeholder on one source of truth.

Student admission & data management

Faculty and attendance management

Academic records & timetable management

Notifications, announcements & messaging

Role-based authentication for 4 user types

Native teacher mobile app (Flutter)

🚀 Business impact: Cuts manual paperwork, centralizes school administration, and strengthens communication between staff, students, and parents through one secure platform.

React.js Node.js Express.js MongoDB Flutter Cloud Deployment

Visit Live Site ↗ 🧩 Designer · Full Stack Dev · Mobile Dev · Architect

Additional Projects

🚌

Full Stack · Real-Time

Bus Tracker

Real-Time Fleet Monitoring Web Application

A full-stack GPS-based fleet management platform serving two distinct user roles — drivers and passengers — with live map rendering and role-gated dashboards. Mirrors production fleet management system architecture used in transport enterprises.

Live GPS tracking via OpenStreetMap API with <3s location refresh cycles
Dual role-based dashboards: driver controls & passenger tracking view
MongoDB Atlas schema optimised for 100+ concurrent vehicle & route records
Role-based authentication with strict data separation between user types

💡 Scalable schema design supporting 100+ concurrent records with optimised query performance — production-grade infrastructure from day one.

Node.js Express.js MongoDB Atlas OpenStreetMap JWT Auth JavaScript

GitHub →

💬

Full Stack · WebSocket

Random RoomChat

Real-Time Multi-Room Chat Platform

A WebSocket-powered chat platform enabling dynamic multi-room creation with instant message broadcasting. Built for minimal latency and maximum concurrency, demonstrating deep expertise in real-time server-side architecture.

Dynamic room creation with instant broadcast via Socket.IO
Real-time join/leave events with live user presence indicators
Server-side session & room state management across concurrent connections
Consistent UX maintained under multiple simultaneous active rooms

💡 Demonstrates mastery of event-driven architecture and WebSocket protocols — skills directly applicable to collaborative tools and live platforms.

Node.js Express.js Socket.IO JavaScript HTML5 CSS3

GitHub →

🔧

UI/UX Design · Figma

MechaFinder

On-Demand Mechanic Discovery App

A comprehensive UI/UX design project for an on-demand mechanic booking platform, covering the full design lifecycle from user research and task flows through to high-fidelity prototyping and a production-ready component library.

25+ wireframe & high-fidelity screens across two distinct user personas
6 complete end-to-end task flows for car owners and mechanics
Full onboarding, service booking, and live availability flows
Reusable Figma component library for consistent design handoff

💡 Delivered a design system and 25+ screens that any developer team could ship directly — demonstrating cross-functional communication skills valued in product roles.

Figma Adobe XD Wireframing Prototyping User Research

Design Portfolio

Work History

Professional Experience

Industry internships that built real-world perspective alongside academic theory.

Cyber Security Intern

Redington · Sivakasi

Jan 2025 – Feb 2025

⭐ Grade A Certification

Completed an intensive, structured cybersecurity training programme at one of India's leading IT distributors, gaining practical knowledge across core security domains.

Gained hands-on experience in network security, threat analysis, and vulnerability assessment through live network lab exercises.
Applied risk mitigation frameworks and incident-response strategies in real environment scenarios.
Awarded Grade A certification upon successful completion of the programme.

App Development Intern

Phoenix Softech · Madurai

May 2022 – Jun 2022

Contributed to a live software product as part of a 5-person development team, applying iterative agile practices and formal testing protocols in a commercial environment.

Built a functional Java application prototype, designing core UI components to improve navigation flow and interaction clarity.
Collaborated within an agile team using iterative feedback cycles to refine features based on stakeholder input.
Performed systematic unit testing and debugging, reducing application crash frequency by 15%.

Academic Background

Education

🎓

Bachelor of Engineering

Computer Science and Engineering

AAACET — Arulmigu Akilandeshwari Arts College of Engineering and Technology, Sivakasi

Sep 2021 – May 2025 GPA: 7.70 / 10.0 Computer Science

Four years of rigorous computer science fundamentals combined with practical project experience in web development, mobile applications, UI/UX design, and cybersecurity — graduating with multiple industry certifications and two professional internships.

Credentials

Certifications & Training

Validated expertise across cloud architecture, design, and security disciplines.

VERIFIED

☁️

AWS Cloud Architecture Certificate Course

Amazon Web Services (AWS)

📅 March 2024

GRADE A

🔐

Cybersecurity Certificate

Redington — Network Security & Threat Analysis

📅 January 2025

DESIGN

🎨

UI/UX Design Workshop Certification

UI/UX Design Workshop Program

📅 March 2023

What I Offer

Services & Capabilities

Available for freelance projects, contract work, and full-time roles. I take products from idea to live deployment — here's how I can add value to your team or business.

🚀

SaaS Product Development

End-to-end SaaS builds — from product design and architecture to live deployment, billing integration, and admin tooling. Two platforms shipped and running today.

Full product architecture & system design
Subscription billing with Razorpay
Multi-role dashboards (admin, vendor, customer)
Cloud deployment & scaling

⚛️

Frontend Development

Building responsive, performant, and accessible web interfaces using modern React patterns and component-driven architecture.

React.js SPA and PWA development
Responsive, mobile-first UI implementation
REST API & WebSocket integration
Performance optimisation and code splitting

🔧

Full Stack Development

End-to-end application development from database schema to UI — Node/Express APIs, MongoDB, JWT auth, and real-time features with Socket.IO.

RESTful API design and implementation
MongoDB schema design & optimisation
Real-time features with WebSockets
Role-based authentication systems

📱

Mobile App Development

Native cross-platform mobile apps with Flutter, built to share architecture and design language with their web counterparts.

Flutter cross-platform app development
Mobile UI matched to web design system
API integration for mobile clients
Role-specific mobile experiences

🎨

UI/UX Design

User-centred design from initial wireframes through high-fidelity prototypes, complete with component libraries and developer-ready handoff files.

Figma & Adobe XD prototyping
User flow mapping and persona research
Design system & component library creation
UX audit and interface redesign

🗺️

Real-Time & API Systems

Specialised experience in live-data systems — GPS tracking, chat platforms, and map API integrations that operate with sub-second latency.

GPS / mapping API integration
WebSocket-powered live features
Fleet & asset tracking dashboards
Third-party API integration

Social Proof

What People Say

Building a track record — testimonials from colleagues and mentors will appear here.

Manlin consistently delivered clean, well-structured code. His ability to move between frontend design and backend logic without losing quality on either side was genuinely impressive for someone at this stage of their career.

Colleague / Mentor

Software / Engineering

— Awaiting testimonial

The GPS tracking system Manlin built was among the best final-year projects we've seen. The architecture decisions, the real-time performance, and the UX polish — it showed both technical depth and design awareness.

Faculty / Academic

Computer Science, AAACET

— Awaiting testimonial

His approach to the UI/UX project — the task flow mapping, the component system, the attention to dual-persona needs — showed the kind of product thinking that most junior developers don't develop until years into their career.

Design Mentor

UI/UX / Product Design

— Awaiting testimonial

Get In Touch

Let's Build Something

I'm actively looking for my next role in frontend development, full-stack engineering, or UI/UX. Whether you have a project in mind, an open position, or just want to connect — I'd love to hear from you.

📧

manlinroswa115@gmail.com

manlin-roswa-r-592261278

🐙

GitHub

github.com/manlin115

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