Freelance Software Engineers in IndonesiaFreelance Software Engineers in Indonesia
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Resa Qulyubi's avatar
Resa Qulyubi
Malang, Indonesia
Mobile/Web/AI Engineer • Backend & Cloud • Scalable products
132
Followers
Mobile/Web/AI Engineer • Backend & Cloud • Scalable products
Cover image for Today I built a website demo theme for Contra Space showcasi...
Today I built a website demo theme for Contra Space showcasing satellite technology and capabilities. Built with Next.js 14 (App Router), TypeScript, and Tailwind CSS, using React Three Fiber + Drei for 3D visuals and Framer Motion for smooth animations. Stack: Next.js 14 • TypeScript • Three.js • React Three Fiber • Drei • Framer Motion • Tailwind CSS • Lucide Icons Live demo: https://demo-web-space.qulyubis.biz.id/ -> feedback is welcome! Note: I’m currently waiting for my first client no projects yet, so I’m staying consistently productive. 🔥
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Cover image for I’ve open-sourced AI API Proxy,
I’ve open-sourced AI API Proxy, a lightweight gateway that standardizes calls to multiple AI providers through an OpenAI-style API. Why it matters: easier vendor switching, centralized keys/quotas, and response caching to cut latency and cost. 🔗 GitHub: https://github.com/Resaqulyubi/ai-api-proxy (https://github.com/Resaqulyubi/ai-api-proxy)🧪 Live example app: https://portfolio.qulyubis.biz.id/?app=16 Highlights: - One endpoint, many providers/models - Built-in caching + retries - Simple auth & rate limits per client - Logs/metrics for observability I’m looking for feedback & contributors. If you’d like to collaborate, DM me, and please ⭐ the repo! While I’m waiting for the first client, I’m staying consistent: weekly small ships-bug fixes, docs polish, new integration examples, and mini benchmarks. Progress over perfect.🔥
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Cover image for Hello e-commerce builders Today I’m exploring
Hello e-commerce builders Today I’m exploring how AI can power every step of a marketplace: discovery, conversion, trust & safety, ops, and retention. This demo shows the journey with ready-to-adopt workflows and a Seller Co-pilot. 🖥️ Try the live website: https://ai-demo1.qulyubis.biz.id/ (https://ai-demo1.qulyubis.biz.id/)Feedback welcome! 😊
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Cover image for Discover my latest mobile and web applications Check demo: h...
Discover my latest mobile and web applications Check demo: https://portfolio.qulyubis.biz.id/ (https://portfolio.qulyubis.biz.id/)I'm available for freelance work and open to discussing new opportunities.
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Software Engineer(6)
Valentinus Theo Prathama's avatar
Valentinus Theo Prathama
proJakarta, Indonesia
Full-stack engineer: SaaS, ERP, CMS and marketing sites
Full-stack engineer: SaaS, ERP, CMS and marketing sites
Cover image for Land of Moe A custom baby
Land of Moe A custom baby blanket brand, and the storefront that sells it. Moms browse the patterns, pick the size and the back fabric, and the finished configuration lands in WhatsApp. What I built The catalogue: every pattern in one grid, filtered by the brand's own tags — animals, letters, colours, occasions — and sorted by price or date. Over a hundred tags, and search answers "bunny" with ninety-four patterns. Product pages that configure the product: type, size, backside (printed fleece, or a minky dot colour), quantity, with the front and back of the pattern shown side by side. An order that carries its own configuration into WhatsApp. Pattern, type, size, backside, price and quantity are written into the message before it is sent, so the conversation starts at the right blanket instead of at the beginning. The pages the shop runs on: how to order, washing instructions, FAQ, about — plus a customer gallery built from the brand's own Instagram posts, so the social proof lives on the site and not only in the feed. Behind the login, a back office where the patterns, tags, prices and pages live as data rather than hand-built pages. Stack Next.js, Tailwind CSS, Cloudflare. Land of Moe has been making these since 2017, and everything is made to order, so the storefront is built around how an order actually happens.
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Cover image for Megaverse is a fitness club
Megaverse is a fitness club in Palembang, built as one platform instead of four disconnected tools. The public site sells the club: programs with intensity and duration, the padel club with court pricing and availability, and the club's postings. The member area is where members live day to day — registration with KTP and address, then profile, class booking, attendance and renewal history. The front desk side covers renewals and payments, gate logs, and lockers with their rentals. Behind that sits the business: a POS with products, suppliers, units and categories, employee and personal trainer records with specialisations, and finance with chart of accounts, journals, fiscal periods and fixed assets, with the heavy tables exported to Excel. Laravel with Blade, Tailwind and MySQL. Built together with Tengku Kevin Juldianto (dev.tengkukevin@gmail.com). https://mega-verse.id
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Cover image for UTARA A music platform for independent
UTARA A music platform for independent Indonesian artists. An artist uploads a release, it goes live on the platform, and listeners find it through artist pages and the catalogue. Payments run through Duitku, and the whole thing runs on the edge, so catalogue pages stay fast without a server to babysit. What I built Artist and listener accounts, with an upload flow that takes a release from draft to published. Artist pages and a browsable catalogue, built for slow connections first. Payments through Duitku. A Hono API over D1 on Cloudflare Workers, with a Next.js front end on the same edge runtime. Stack Next.js, Hono, Cloudflare Workers, D1, Duitku. It is early and I am building it in the open, so the parts that exist are the ones people actually asked for.
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Cover image for Evo Academy The system a dance
Evo Academy The system a dance school actually runs on. Parents enquire, students enrol, teachers take attendance at the door, packages get billed monthly, teachers get paid, and the money lands in a real ledger instead of a spreadsheet. What I built Students, guardians and registrations, so the studio can enrol a new student in one screen. Attendance per class session, on weekly schedules with teacher assignments. Packages and recurring billing, so the monthly run is a report instead of a reconciliation. Teacher payroll, calculated from the classes they actually taught. A studio POS for walk-in payments, and bookkeeping that ties the day's takings together. Stack Laravel, PostgreSQL, React, Inertia, Tailwind CSS. Built for one school first, which is why it fits the way a studio works instead of the way a generic school system thinks it should.
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Software Engineer(7)
Mohamed AALABOU's avatar
Mohamed AALABOU
Bali, Indonesia
CEO and Founder | Blockchain Expert
$1k+
Earned
1x
Hired
6
Followers
CEO and Founder | Blockchain Expert
Cover image for Adswinner - Facebook Ads Scraper
Adswinner - Facebook Ads Scraper
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Cover image for Blink Pharma - Advanced solutions for the pharma industry
Blink Pharma - Advanced solutions for the pharma industry
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Cover image for Gofer - Sentiment analysis and AI coaching for customer support
Gofer - Sentiment analysis and AI coaching for customer support
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Software Engineer(3)
sugiman S's avatar
sugiman S
Pontianak, Indonesia
AI Automation Engineer | APIs, Webhooks, Python
New to Contra
AI Automation Engineer | APIs, Webhooks, Python
Cover image for AI automation engineering showcase demonstrating
AI automation engineering showcase demonstrating a practical workflow pattern using APIs, webhooks, Python, validation, logging, and reliable integrations. Designed to turn repetitive processes into traceable, maintainable automation with error handling and human oversight.
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Cover image for I built this owner gateway
I built this owner gateway to handle event-driven notifications in a more controlled way. Incoming events are validated, checked for duplicates, and logged before they are routed to the appropriate notification path. I also kept the Telegram and n8n integration behind a clear boundary so the workflow stays easier to review, test, and control. The focus here is reliability and traceability — making sure an event is handled once, important actions can be audited, and automation does not bypass human oversight.
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Cover image for I built this research lab
I built this research lab to help me evaluate new tools and technical opportunities without jumping straight into adoption. Each candidate goes through a simple process: record the source, review what it could be useful for, check the risks and constraints, and keep evidence for the decision. I also built a small Python policy gate and offline test fixtures so some checks can be repeated without relying on live services. The goal is simple: experiment freely, but keep important decisions traceable and under human control.
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Cover image for I built this operational workflow
I built this operational workflow as part of INAPRA PMS, a system designed around the everyday work of running a small hospitality property. This example follows the flow from a confirmed reservation through housekeeping operations and folio handling, with an operational audit trail to make important actions easier to trace. I developed and tested this in a local UAT environment using fictional hotel data. My focus was not just making the screens work, but making the workflow clear, dependable, and practical for day-to-day operations.
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Software Engineer(4)
Maulana Royyan Tsubaisa's avatar
Maulana Royyan Tsubaisa
Bandung, Indonesia
Full-Stack Developer | AI, Automation & Web Apps
New to Contra
Full-Stack Developer | AI, Automation & Web Apps
Cover image for Larisio — Multi-Platform POS &
Larisio — Multi-Platform POS & Retail Management SaaS Larisio is a multi-platform POS and retail management system designed for businesses that need reliable daily operations, centralized inventory control, and flexible access across multiple devices. I built the platform to handle point-of-sale transactions, product and category management, stock monitoring, purchasing, customer management, transaction history, and business reporting from one centralized dashboard. The system follows an offline-first approach, allowing essential operations to continue even when internet connectivity is unstable. Once the connection is restored, locally queued transactions can be synchronized back to the central PostgreSQL database. Larisio also supports multi-outlet operations, role-based access, subscription billing, and deployment across web, Windows desktop, and Android.
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Cover image for Maintenance Inventory Management System —
Maintenance Inventory Management System — PT Daiki Aluminium Industry Indonesia I designed and developed a maintenance inventory management system for internal spare-part operations at PT Daiki Aluminium Industry Indonesia. The system was created to improve visibility and traceability of maintenance spare parts, especially for stock-in, stock-out, stock opname, item searching, and transaction history. I implemented QR-based item scanning, inventory transaction tracking, audit records, and a hybrid offline-online workflow so operations can continue when network connectivity is limited and synchronize with the main database when connectivity is restored. The project was built around real manufacturing and maintenance workflows, with the goal of reducing manual recording, improving stock accuracy, and making spare-part movement easier to monitor.
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Cover image for Wassie — Discord & Web3
Wassie — Discord & Web3 Automation System Wassie is a private Web3 Discord automation project I built to support community operations, alerts, and engagement workflows. I designed and configured the Discord server structure, channels, onboarding flow, permissions, and role organization, then connected automation workflows for community management and Web3 activity monitoring. The project includes custom bot automation, NFT and market activity alerts, wallet/whale tracking, role-based server organization, and operational monitoring workflows to help the community stay organized and informed in real time. My role covered both the Discord server architecture and the automation/backend integration behind the system.
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Cover image for OpsPilot — AI Business Operations
OpsPilot — AI Business Operations Dashboard OpsPilot is an AI-powered business operations platform designed for creative agencies, studios, and freelancers to manage clients, deals, projects, invoices, and financial workflows from a single workspace. I designed and developed the platform as a full-stack application, combining CRM functionality, automated invoicing, business analytics, and an AI assistant that can answer operational questions using real business data. Key capabilities include client and deal management, branded PDF invoices, recurring retainers, automated payment reminders, revenue and accounts receivable tracking, pipeline analytics, multi-user workspaces, and AI-powered business insights. The goal was to reduce the fragmented workflow of managing clients in messaging apps, invoices in spreadsheets, and business data across multiple tools by bringing the entire operational workflow into one integrated system.
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Software Engineer(3)
Hilmi H's avatar
Hilmi H
Banyuwangi, Indonesia
Senior Full-Stack Engineer | SaaS, Workflows & Payments
Senior Full-Stack Engineer | SaaS, Workflows & Payments
Cover image for LuxuryStays.nyc – Premium Property Booking Platform
LuxuryStays.nyc – Premium Property Booking Platform
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Cover image for LakuLagi - Second-Hand Marketplace
LakuLagi - Second-Hand Marketplace
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Cover image for WhatsApp Chat Link Generator
WhatsApp Chat Link Generator
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Cover image for Built a Singapore business-for-sale marketplace
Built a Singapore business-for-sale marketplace from the ground up, covering architecture, database design, public listings, seller onboarding, pricing plans, admin operations, and production deployment. I initially integrated HitPay for payment processing, then implemented Stripe Checkout, webhooks, and payment status workflows as the platform evolved. I continue to develop new features, resolve production issues, improve the user experience, and support the platform's ongoing growth.
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Software Engineer(3)
Sahibul Nuzul Firdaus's avatar
Sahibul Nuzul Firdaus
Aceh, Indonesia
Flutter Developer | iOS, Android, Web Apps | Supabase & Go
Flutter Developer | iOS, Android, Web Apps | Supabase & Go
Cover image for Building PukatFlow — an offline-first
Building PukatFlow — an offline-first mobile ledger & AI assistant designed for maritime vessel operators ⚓📱 Most bookkeeping apps completely break down at sea once you lose cell signal. With PukatFlow, everything works seamlessly offline: • Local-first sync via PowerSync + Supabase (zero data loss when back at port) • Voice logging & receipt parsing powered by Gemini API • Instant profit-sharing (bagi hasil) calculation right from the dock Stack: Flutter, Supabase, PostgreSQL RLS, Gemini Multimodal. Would love to hear your thoughts on offline-first UI patterns!
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Cover image for Offline-First Fisheries Ledger & Voice AI Assistant Development
Offline-First Fisheries Ledger & Voice AI Assistant Development
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Cover image for Thesis Track App
Thesis Track App
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Cover image for Nourdaily | All-in-One Islamic Content
Nourdaily | All-in-One Islamic Content Platform
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Software Engineer(8)