Freelance full-stack developer — Batam, ID
Open for freelance projects — fullstack web, mobile, and backend systems from architecture to deployment. Let's build something that actually ships.
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Production systems
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Years building
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Production stacks
Erghi Septiandi Putra
Full-stack developer
Role
Freelance Full-Stack Dev & DevOps
Company
PT Persero Batam
Since
February 2025
Based in
Batam, Indonesia
Profile
A freelance full-stack developer open for projects — web, mobile, backend, and DevOps. Experienced in delivering internal systems, customer-facing interfaces, and deployment automation.
Career highlights
Built HRIS system serving full HR lifecycle at PT Persero Batam
Delivered 10+ production systems across web, mobile & DevOps
Payment integrations: Midtrans QRIS, Virtual Account
CI/CD automation & server migration without data loss
I'm open for freelance work — fullstack web, mobile, and backend projects. My experience ranges from HRIS platforms and queue dashboards to mobile operational tools, payment-enabled POS systems, and backend automation.
Whether you need a new system built or an existing one improved, I bridge product thinking with solid technical execution — responsive interfaces, stable data flows, and systems that hold up under real traffic.
Working principles
Fast implementation without sacrificing structure
Interfaces that stay usable across desktop and mobile
Backends designed for integrations and business workflows
Services
Full-stack freelance services — from concept to production.
Full-stack web apps with Next.js, Laravel, NestJS. From landing pages to complex admin dashboards.
Cross-platform mobile apps with Flutter & Expo. Biometric auth, GPS, QR scanning, push notifications.
RESTful APIs & microservices with Go, NestJS, Node.js. Payment integration (Midtrans QRIS/VA), WhatsApp Gateway, webhooks.
Docker containerization, CI/CD pipelines (GitLab/GitHub Actions), Nginx reverse proxy, server migration.
Connect existing systems: WhatsApp API, payment gateways, fingerprint devices, Odoo ERP, Oracle databases.
Code review, architecture planning, performance optimization. Fix what's already running.
Projects
Each project represents a real problem solved. From finance apps to airport systems — I ship products that work. Open for similar freelance projects.
01
Multi-Device WhatsApp API Gateway & Dashboard. A SaaS platform to connect, manage, and automate multiple WhatsApp numbers via a centralized dashboard. Features QR code authentication, dynamic API keys, webhooks, contact sync, and role-based access.
02
Comprehensive freelance service management platform. Handles the entire end-to-end workflow from service catalog, ordering, real-time progress tracking, revision system, automated invoicing, WhatsApp notifications, to OTP & 2FA security.
03
This portfolio website itself. A modern, dark-themed personal site built with Next.js, Tailwind CSS, and Framer Motion. Features 3D tilt project cards, cursor glow, mobile bottom nav, and scroll-triggered animations.
04
Personal finance mobile app built with Expo. Covers onboarding, authentication, biometric unlock, wallets, categories, budgets, notifications, and mobile-friendly finance workflows.
05
Go backend API with package-by-feature architecture. Handles auth, refresh tokens, transactions, notification settings, migrations, Docker, and MySQL.
06
Comprehensive HR management for Persero Batam. Automated payroll with tax calculation, realtime fingerprint attendance integration, and overtime management.
07
Full-stack Point of Sale for Candu Roti Bakar. Stock management, financial reports (Profit/Loss), and Midtrans QRIS payment integration.
08
Mobile acceptance application for Hang Nadim Airport. Scans and integrates package QR codes directly into the central airport system.
09
Tax Center PBL Project. Optimized tax formulas, session security, and implemented recurring payments via Virtual Accounts.
10
Various backend systems for clients including HappyBeauty (E-commerce), Tritunas, and Grand Batam Mall (IG Automation).
11
GitLab CI/CD auto-deployment, Docker auto-recovery services, and Odoo migration from cloud to internal server without data loss.
Experience
A selection of work across product engineering, freelance projects, operational systems, integrations, and deployment support.
01
PT Persero Batam
Batam, IndonesiaBatam Toteles Application
Batam, IndonesiaCandu Roti Bakar
Batam, IndonesiaPT Jala Armada Rinjani
RemoteFolxcode
RemoteTax Center — PBL Project
Batam State Polytechnic02
Batam State Polytechnic (Politeknik Negeri Batam)
Software engineering, web & mobile development, database systems. Completed PBL with Tax Center e-filing system.
Approach
I take freelance projects across the stack — building UIs, integrating APIs, automating deployments, and making systems more reliable.
Most of my work comes from real business problems, so I prioritize practical solutions over over-engineering. Let's talk about your project.
Skills
Grouped by where I use them most — from interface work to backend operations and infrastructure.
Core web stack
6+ projectsGo-to tools for product interfaces, admin systems, and full-stack dashboards.
Backend and data
5+ projectsService architecture, integrations, and data storage for production-ready backends.
Mobile delivery
3+ projectsCross-platform execution for internal tools and customer-facing mobile products.
Infrastructure
ProductionDeployment, runtime reliability, and operational support around shipped systems.
Process
From your idea to a live product — here's how I approach every project.
Understand your goals, requirements, and constraints. Free initial consultation.
Architecture design, tech stack selection, timeline & estimate.
Iterative builds with regular updates. You see progress every step.
CI/CD setup, domain config, SSL, production launch.
Post-launch maintenance, monitoring, and future iterations.
Contact
Looking for a freelance developer? Have a project in mind or need help shipping one? Let's talk.
Direct contact
Reach out directly or fill in the form. I usually respond within a day.