Hey, I'm Ar Rasyid Sarifullah
{ Full Stack } Web Developer_
With expertise in React, Node.js, Go, and Laravel — I architect multi-tenant platforms, background job pipelines, and automated integrations.
+
Year Experience
+
Projects Completed
%
Client Satisfaction
%
System Uptime
Architecting systems for B2B SaaS,
E-Commerce, and Logistics_
v2.4.0 (Latest)
Shopee & TikTok API Sync Pipelinev2.1.2
Multi-tenant JWT Auth & RBACv1.9.0
QR Code Asset Resolution Flowv1.1.0
Cron-based Background Job Workers
Designing solutions customized
to meet your requirements
Modern Frontend Engineering
Crafting highly reusable, data-dense interfaces, and scalable component systems using modern client-side technologies like React, Next.js, TypeScript, and Astro.
Backend & API Architecture
Designing robust, multi-tenant REST APIs and clean service-layer patterns that power complex enterprise applications using Go, Python, Laravel, and Node.js.
E-Commerce Integrations
Building automated sync pipelines and fulfilment workflows connecting your platform to major marketplaces like Shopee, and TikTok Shop.
Database & Infrastructure
Structuring scalable databases with multi-tenant data scoping, complex queries, and secure deployment pipelines using PostgreSQL, MySQL, and Redis.
Automation & Background Jobs
Streamlining business operations through scheduled cron workers, headless browser tasks, and custom bot services utilizing Playwright, Telegram API, and Go/Python scripts.
AI & Machine Learning Integrations
Implementing advanced machine learning models and intelligent API integrations to automate data processing, natural language understanding, and predictive analytics using TensorFlow, PyTorch, or cloud AI services.
Excited to take on new projects and collaborate.
Let's chat about your ideas. Reach out!
4+ years of passion for
building real products
Software Engineer
Designed and maintained the core data infrastructure and automation pipelines for cross-platform integration systems.
- Automated repetitive manual workflows by developing custom bot services, messaging bridges, and scheduled background workers.
- Implemented secure multi-tenant routing that automatically propagates organization scopes across all API layers to prevent data leaks.
- Built automated scraping scripts to extract marketplace data from Shopee and TikTok into internal database pipelines.
- Designed data sync pipelines using incremental updates, historical backfills, and reconciliation logic to ensure database consistency.
- Optimized database performance to efficiently query and store over 4 million records using advanced indexing and query tuning.
- Developed real-time communication systems and offloaded heavy tasks using WebSockets and asynchronous message queues.
Education
2021 – 2025
Universitas Nusantara PGRI KediriBachelor of Informatics Engineering
GPA: 3.92/4.002023
Vocasia (MSIB Kampus Merdeka)Frontend Development Track
Awarded Best Front-End Project of the cohort.
Research
Thesis
ResearchDigitalization of Disability Athlete Management System Using Decision Tree Cart Algorithm to Identify Potential Athletes in NPCI Kediri
- Modeled performance metrics from 72 disability athletes grouped into four classification categories.
- Developed a data augmentation pipeline using standard deviation to generate synthetic samples.
- Ran 10-fold cross-validation across multiple train-test configurations to verify classification stability.
- Built a web application currently used by NPCI Kediri to centralize athlete data and automate selection workflow.
My Recent Works
Wika Tech
Management and information system built for KONI Kediri, featuring a dedicated client frontend and robust backend API.
- Project Info
Role
Backend Developer
Category
Management System
Technologies
Python, Django, Server Management
Aventory
Inventory and stock management system designed for real-time tracking, stock flow coordination, and automated asset depreciation calculations.
- Project Info
Role
Full Stack Developer
Category
Management System
Technologies
Node.js, React, Tanstack, PostgreSQL
Makario
An integrated operational system for printing businesses that automates production workflows, tracks machine queues, and minimizes errors in real-time.
- Project Info
Role
Full Stack Developer
Category
Business Platform
Technologies
Go, React, Websocket, PostgreSQL
Brandhub
Multichannel e-commerce platform integrating Shopee and TikTok, featuring real-time profit calculations across thousands of daily orders to accelerate strategic business decisions.
- Project Info
Role
Full Stack Developer
Category
Business Platform
Technologies
Node.js, Vue, Redis, Web Scraping
Nusantarafest
Event management and ticketing platform designed to streamline ticket sales, attendee registration, and seamless check-in processes for large-scale events.
- Project Info
Role
Full Stack Developer
Category
Event & Community
Technologies
React, Firebase, Tailwind CSS, Oauth
My Skills
Front-End:
React, Next.js, TypeScript, Astro, TailwindBack-End:
Go, Node.JS, Python, LaravelDatabases:
PostgreSQL, MySQL, RedisDevOps/Tools:
Docker, GitHub, MakefileIntegrations:
Shopee/TikTok APIs, Telegram APIs, Playwright