Portfolio — Calvin Putra Nirwana

About Me

I’m a Fullstack Developer experienced in designing and building applications from the ground up to production. Day-to-day I ship with Laravel, Go, Next.js, React, and TailwindCSS — from company CMS platforms to commerce, events, and internal tools.

At Universe Solution Digital I work across microservices and modern frontends; through Website Calvin I also deliver client products end-to-end. Focus stays on clean structure, performance, security, and a seamless user experience.

⚙️

Backend (Laravel, Go/Gin, REST API, MySQL)

🧩

Frontend (Next.js, React, Blade, Tailwind)

💻

TypeScript, Livewire, Alpine.js & jQuery

🔧

Git, GitLab, Bitbucket & GitHub Workflow

📦

API Integrations (WhatsApp, Midtrans, Xendit)

📊

Admin CMS & Data Visualization

🧠

System Analysis & Documentation

🛠️

Error Tracking (Sentry.io)

💳

Payment Gateway Integration

📝

WordPress (Company Profile, Blog)

📣

Landing Pages & SEO On-Page

🔒

Server Setup (Nginx, SSL, Backup, Docker)

Tech Stack & Tools

🧩 Backend & Framework

Laravel Go Gin GORM Slim REST API MySQL Livewire

🎨 Frontend & UI

Next.js React TypeScript TailwindCSS Blade Alpine.js JavaScript jQuery

⚙️ DevOps & Infrastructure

Git GitHub GitLab Bitbucket Docker Jenkins Hostinger Nginx SSL Deployment Sentry.io GTMetrix Lighthouse

💳 Payment Gateway & API

Midtrans Xendit Postman Payment Gateway React Query WhatsApp API

🧠 Tools & Design

PhpMyAdmin VSCode Figma WordPress SEO On-Page DomPDF CKEditor TipTap

Experience

Fullstack Developer — Universe Solution Digital

Jan 2025 — Present • Jakarta, Indonesia

Build and maintain multi-tenant digital products across Go microservices and Next.js / React frontends.
Deliver CMS + public app pairs for community, education, merchant, and project-management domains.
Collaborate via GitLab workflows, Dockerized services, and shared API contracts.
Own features end-to-end: domain modeling, API design, UI implementation, and release support.

Key Platforms:

PMA — project management app (Next.js + Go core).
UNPAR — university web app, CMS, shortlink, streaming & LBH legal-aid backend.

Tech Stack:

Go Gin GORM Next.js React TypeScript TailwindCSS React Query MySQL Docker GitLab Jenkins CKEditor

Fullstack Developer — Website Calvin

Aug 2025 — Present • Remote / Jakarta

Deliver client websites and web apps end-to-end — from discovery and UI to backend, deployment, and iteration.
Build e-commerce, event, property, and portfolio products using reusable Laravel / Next.js starters.
Migrate store operations from Excel and offline workflows to online systems with clearer inventory and reporting.

Highlighted Projects:

PIKA RUBY ( — pikaruby.com — hair accessories store with membership and WhatsApp checkout.
Toko Metro Jaya Sanitary — tokometrojayasanitary.com — sanitary e-commerce with nationwide cargo shipping.
J&T Reporting, Harry Potter event platform, and Faith Smashers tournament app.
Sunset Garden property site, Data Ministry website, plus portfolio tools for quotation and proposals.

Tech Stack:

Laravel Livewire Next.js React Go TailwindCSS MySQL Slim Twig DomPDF Sentry Hostinger Vite

Fullstack Web Developer — Kelas.com

Aug 2022 — Nov 2024 • Jakarta, Indonesia

Led full-cycle development for Bootcamp Platform — feature design, debugging, and optimization.
Improved page speed by 40% through query optimization and Lighthouse audits.
Enhanced SEO and accessibility to maintain 100/100 PageSpeed score consistently.
Collaborated with cross-functional teams under Agile Scrum sprints.

Key Achievements:

Reduced Bootcamp main page load time to under 3 seconds.
Boosted organic traffic by 27% through SEO-driven structure updates.

Tech Stack:

Laravel Blade Bootstrap MySQL Git GitHub Trello Agile ( Sprint Backlog ) Sentry.Io

Highlighted Projects:

Progress User Journey V2.0 (dynamic user tracking & report visualization)
Internal CRUD Dashboard for User Journey Management
Project Page with Like System, Google Slides Embed, and Pagination

Fullstack Web Developer Intern — Kelas.com

Feb 2022 — Aug 2023 • South Jakarta, Indonesia

Developed and maintained web modules using Laravel MVC and MySQL.
Fixed live production bugs via Sentry.io and performed rollback via Git branches.
Implemented new UI components using Tailwind & Alpine.js with reusable Blade directives.
Collaborated with QA and design teams for test-driven deployment.

Tech Stack:

Laravel Blade Bootstrap MySQL Git GitHub Trello Agile ( Sprint Backlog ) Sentry.Io

Highlighted Projects:

New Landing Page Redesign
Job Connector CRUD & Dashboard System
Auto-Generated CV (ATS-Compatible) Module

Projects

PIKA RUBY — Hair Accessories E-Commerce

2025 — Present

Online store for hair accessories (pins, clips, and styling pieces) at pikaruby.com — catalog shopping, membership, cart checkout via WhatsApp, and reseller/grosir flows.

Laravel Octane Horizon Alpine.js Tailwind MySQL Socialite

View Website

Toko Metro Jaya Sanitary — E-Commerce Sanitary Store

2025 — Present

Live sanitary e-commerce at tokometrojayasanitary.com: kitchen sinks, faucets, bathroom fittings, flash sale/vouchers, and cargo shipping across Indonesia — “Better Clean, Better Life”.

Next.js React TypeScript Go Tailwind Docker

View Website

Faith Smashers — Badminton Tournament Manager

2025 — Present

Badminton community app at faithsmasher.com — Google login for members, admin tournament panel, and navy/gold branded session tracking.

Slim Twig MySQL Tailwind

View Website

Sunset Garden — BMI Property Experience Site

2025 — Present

BMI Property marketing site at bmiproperty.com for Sunset Garden / Bali developments — immersive maps, 3D touches, and multilingual project storytelling.

React Vite TypeScript Three.js MapLibre Tailwind

View Website

Harry Potter — Event Registration, Quiz & Word Game Platform

Oct 2025

Interactive event registration and engagement platform for a Harry Potter–themed experience, featuring participant verification, house selection, admin analytics, and mini-games like quizzes and hidden-word challenges.

Laravel Blade Tailwind MySQL

View Website

J&T Express — Seller & Returns Reporting

Sep 2025 - Okt 2025

Owner-focused reporting sourced from the official J&T portal: upload, parse, and filter data to generate per-seller and returns reports.

Laravel Blade Tailwind MySQL

Private Access

TMJS Admin — Sales, Purchasing & Stock Ops

Aug 2025 — Sep 2025

Internal admin system for Metro Jaya Sanitary sales, purchasing, and inventory (predecessor ops layer before the public storefront at tokometrojayasanitary.com).

Laravel Blade Tailwind MySQL

Private Access

SSCP — BoQ (RAB) Management for Warehouse Project

Apr 2025 — Jul 2025

Cost estimation (BoQ) and progress monitoring for warehouse construction projects.

Laravel Blade Tailwind MySQL

Private Access

AdminMetroJaya — Sanitary Store Management

Jan 2025 — Mar 2025

Offline web system for managing sales, purchases, and stock of sanitary products — replacing manual Excel workflows.

Laravel Blade Tailwind MySQL

Private Access

PIKA RUBY — Hair Accessories E-Commerce

2025 — Present

Online store for hair accessories (pins, clips, and styling pieces) at pikaruby.com — catalog shopping, membership, cart checkout via WhatsApp, and reseller/grosir flows.

Roles & Scope

PM Backend Frontend DevOps

Outcomes & Metrics

Live storefront at pikaruby.com for retail & reseller channels.
WhatsApp-assisted checkout keeps ops simple without a full payment gateway.

Business Flow

Browse catalog → add to cart → checkout form → WhatsApp confirmation → admin fulfillment.
Member join for better pricing; grosir requests handled with admin confirmation.

Key Features

Product catalog, cart, and customer membership registration.
Checkout flow that generates invoice/item list then continues on WhatsApp for shipping & payment.
Trust pages for payment, returns, and grosir/reseller guidance.
Blog tips for hair-care & styling accessories; Shopee storefront link support.
Laravel Octane/Horizon runtime with Sentry monitoring.

Tech Stack

Laravel Octane Horizon Alpine.js Tailwind MySQL Socialite

Infrastructure

Docker Sentry Hostinger

Gallery

View Project

Toko Metro Jaya Sanitary — E-Commerce Sanitary Store

2025 — Present

Live sanitary e-commerce at tokometrojayasanitary.com: kitchen sinks, faucets, bathroom fittings, flash sale/vouchers, and cargo shipping across Indonesia — “Better Clean, Better Life”.

Roles & Scope

PM Backend Frontend DevOps

Outcomes & Metrics

Public commerce site for house & project sanitary buyers.
Cargo + packing UX tailored for heavy sanitary shipments.

Business Flow

Browse best sellers → apply voucher → checkout with cargo estimate → delivery nationwide.
Admin manages catalog, promo, and order ops behind the storefront.

Key Features

Storefront categories: wastafel & sink, kran, shower, toilet/closet, grease trap, accessories.
Flash sale & voucher campaigns (e.g. SANITARY10, SINK50K, NEWUSER15).
Cargo shipping calculator with wood packing guidance for heavy sanitary goods.
Official warranty claim flow via customer account; responsive CS support.
Next.js storefront/admin with Go API for catalog & transactional operations.

Tech Stack

Next.js React TypeScript Go Tailwind Docker

Infrastructure

Docker Compose GitHub Hostinger

Gallery

View Project

Faith Smashers — Badminton Tournament Manager

2025 — Present

Badminton community app at faithsmasher.com — Google login for members, admin tournament panel, and navy/gold branded session tracking.

Roles & Scope

PM Backend Frontend

Outcomes & Metrics

Live community hub at faithsmasher.com for members and tournament admins.

Business Flow

Member joins via Google → follows community sessions → admin manages brackets & scores.

Key Features

Member login via Google (auto-created accounts, no approval wait).
Admin panel (email/password) for tournament bracket & score management.
Community session updates and badminton activity feed.
Navy/gold brand system with Twig templates + Tailwind.

Tech Stack

Slim Twig MySQL Tailwind

Infrastructure

Hostinger

Gallery

View Project

Sunset Garden — BMI Property Experience Site

2025 — Present

BMI Property marketing site at bmiproperty.com for Sunset Garden / Bali developments — immersive maps, 3D touches, and multilingual project storytelling.

Roles & Scope

Frontend UI/UX

Outcomes & Metrics

Live property experience at bmiproperty.com for BMI / Sunset Garden prospects.

Business Flow

Prospect explores footprint → opens Sunset Garden project → contacts sales office.

Key Features

React/Vite public site with MapLibre maps and Three.js presentation layers.
Project footprint storytelling (20+ Bali & Jawa developments) and Sunset Garden 2 showcase.
CMS/admin modules for pages, media, and content-driven property marketing.
ID / EN / ZH locales with CDN media delivery.

Tech Stack

React Vite TypeScript Three.js MapLibre Tailwind

Infrastructure

Hostinger Cloudflare CDN

Gallery

View Project

Harry Potter — Event Registration, Quiz & Word Game Platform

Oct 2025

Roles & Scope

PM UI/UX Backend Frontend DevOps

Outcomes & Metrics

Average registration completion under 1 minute.
Verified participant data accuracy >98%.
Manual data entry reduced by 95% through automation and exports.

Business Flow

CTA “Register Now” → form submission → email verification → participant ID/QR issued.
Participants complete mini-games (quiz & word challenges)
Admin assigns participants to their respective houses and reviews complete participant data.

Key Features

Responsive registration form with house selection and profile setup.
Email verification and unique participant ID/QR pass generation.
Integrated quiz and word-guessing mini-games for participant engagement.
Admin dashboard with filters (house, batch, region)

Tech Stack

Laravel Blade Tailwind MySQL

Infrastructure

GitHub Hostinger Nginx SSL Backup

View Project

J&T Express — Seller & Returns Reporting

Sep 2025 - Okt 2025

Owner-focused reporting sourced from the official J&T portal: upload, parse, and filter data to generate per-seller and returns reports.

Roles & Scope

PM UI/UX Backend Frontend DevOps

Outcomes & Metrics

Report preparation time reduced by 80% (manual to automated).
Improved accuracy in seller settlement & return reconciliation.

Business Flow

Export from J&T portal → upload to system → ETL parsing & normalization.
Review dashboards → apply filters → generate per-seller/returns reports.

Key Features

Upload & parse exports from the official J&T portal (CSV/Excel).
Per-seller breakdown: orders, revenue, shipment status, and fees.
Returns & refund tracking status.
Advanced filters (date range, seller, service type, status).
Custom reports (PDF/Excel) scheduled or on-demand.
Data validation & reconciliation logs to prevent duplication.
Role-based access (Owner, Seller, Admin)

Tech Stack

Laravel Blade Tailwind MySQL

Infrastructure

GitHub Hostinger SSL Backup

TMJS Admin — Sales, Purchasing & Stock Ops

Aug 2025 — Sep 2025

Internal admin system for Metro Jaya Sanitary sales, purchasing, and inventory (predecessor ops layer before the public storefront at tokometrojayasanitary.com).

Roles & Scope

PM UI/UX Backend Frontend DevOps

Outcomes & Metrics

Input time reduced by 90%.
Stock and profit accuracy improved by 90%.
Integrated online access for admin, warehouse, and finance.

Business Flow

Sales → Invoice → Payment with live stock updates.
Purchasing → Cost & COGS adjustments.
Automatic margin calculation including admin fee per item.
Accounts receivable follow-ups with due reminders.

Key Features

Sales recording with itemized admin fees per product.
Customer invoicing with PDF export and automatic stock reduction.
Supplier purchasing and cost tracking.
Real-time dashboard showing revenue, margin, profit, and expenses.
Comprehensive PDF reports with date range filters.
Online-based architecture for multi-user access and synchronization.

Tech Stack

Laravel Blade Tailwind MySQL

Infrastructure

GitHub Hostinger SSL Backup

SSCP — BoQ (RAB) Management for Warehouse Project

Apr 2025 — Jul 2025

Cost estimation (BoQ) and progress monitoring for warehouse construction projects.

Roles & Scope

PM Backend Frontend DevOps

Outcomes & Metrics

Budgeting process accelerated by 3×.
Reduced manual errors in RAB calculation.
Improved cost transparency and project efficiency.

Business Flow

BoQ draft → review → approval → realization.
Each progress and material usage updates stock and variance report automatically.
Comparison between planned and actual costs for performance tracking.

Key Features

Create and evaluate RAB (BoQ) for warehouse construction.
Automatic classification of budget as cheap, normal, or expensive.
Customizable RAB format with built-in formulas — just input volumes and prices.
Manual BoQ entry and Excel import support.
Material stock tracking for real-time cost control.
Role-based access for PIC Warehouse, Admin, and Owner.

Tech Stack

Laravel Blade Tailwind MySQL

Infrastructure

GitHub Hostinger Nginx SSL

AdminMetroJaya — Sanitary Store Management

Jan 2025 — Mar 2025

Offline web system for managing sales, purchases, and stock of sanitary products — replacing manual Excel workflows.

Roles & Scope

PM UI/UX Backend Frontend DevOps

Outcomes & Metrics

Operational efficiency improved by 50%.
Report compilation reduced from 2 hours to 10 minutes.
Seamless transition from Excel to a web-based system.

Business Flow

Sales → Payment → Stock Update.
Purchasing → Stock In → COGS Adjustment.

Key Features

Sales and purchasing with automatic stock adjustments.
Real-time stock overview with item-based cost tracking.
Receivables reminders based on payment due dates.
PDF reports for revenue, margin, and expense summaries.
Offline deployment for single-store operation (no online sync).

Tech Stack

Laravel Blade Tailwind MySQL

Infrastructure

GitHub Hostinger SSL Backup

About Me

Tech Stack & Tools

Experience

Projects

PIKA RUBY — Hair Accessories E-Commerce

Toko Metro Jaya Sanitary — E-Commerce Sanitary Store

Faith Smashers — Badminton Tournament Manager

Sunset Garden — BMI Property Experience Site

Harry Potter — Event Registration, Quiz & Word Game Platform

J&T Express — Seller & Returns Reporting

TMJS Admin — Sales, Purchasing & Stock Ops

SSCP — BoQ (RAB) Management for Warehouse Project

AdminMetroJaya — Sanitary Store Management

PIKA RUBY — Hair Accessories E-Commerce

Toko Metro Jaya Sanitary — E-Commerce Sanitary Store

Faith Smashers — Badminton Tournament Manager

Sunset Garden — BMI Property Experience Site

Harry Potter — Event Registration, Quiz & Word Game Platform

J&T Express — Seller & Returns Reporting

TMJS Admin — Sales, Purchasing & Stock Ops

SSCP — BoQ (RAB) Management for Warehouse Project

AdminMetroJaya — Sanitary Store Management

PIKA RUBY — Hair Accessories E-Commerce — Gallery

Toko Metro Jaya Sanitary — E-Commerce Sanitary Store — Gallery

Faith Smashers — Badminton Tournament Manager — Gallery

Sunset Garden — BMI Property Experience Site — Gallery

Harry Potter — Event Registration, Quiz & Word Game Platform — Gallery

J&T Express — Seller & Returns Reporting — Gallery

TMJS Admin — Sales, Purchasing & Stock Ops — Gallery

SSCP — BoQ (RAB) Management for Warehouse Project — Gallery

AdminMetroJaya — Sanitary Store Management — Gallery