Freelance Software Engineers in South JakartaFreelance Software Engineers in South Jakarta
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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)
Rama Satriana's avatar
Rama Satriana
South Jakarta, Indonesia
Full Stack Developer | Business Systems & API Specialist
New to Contra
Full Stack Developer | Business Systems & API Specialist
Cover image for Digiland — Digital Campaign Microsite Built
Digiland — Digital Campaign Microsite Built a standalone campaign microsite for a digital doorprize event. Features include participant registration, CRUD management for winners, Excel import/export for data reporting, and a custom-styled admin dashboard. Delivered on deadline and used live during the event.
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Cover image for Healthcare CRM Overhaul: Laravel-Powered Sales Optimization
Refactored a healthcare CRM using Laravel to optimize sales workflows. Key Contributions: Sales Dashboard: Built real-time visualization for "Deals Won/Lost" and performance metrics. Smart Task Automation: Engineered productivity logic that auto-adjusts schedules based on national holidays. Data Integrity: Implemented director-level approval workflows for sensitive actions. Result: Streamlined sales operations with accurate performance tracking and improved data security.
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Cover image for Engineered a complex "Legal Drafting
Engineered a complex "Legal Drafting & Review" workflow within the HRIS using Laravel to enforce internal governance. Key Logic Implemented: Multi-Level Approval: Built a dynamic approval hierarchy involving Directors and HR Managers based on priority levels (High/Medium/Normal). Automated SLA: Programmed auto-cancellation logic that invalidates "Hold/Discussed" requests after 3 days of inactivity to prevent bottlenecks. Validation Rules: Enforced mandatory justification fields for High-Priority requests to ensure accountability.
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Cover image for Engineered a robust REST API
Engineered a robust REST API (Bridging) connecting the Hospital System (HIS) with BPJS Mobile JKN. Key Achievements: Standard Compliance: Built endpoints strictly adhering to BPJS technical specs for interoperability. Digital Queuing: Enabled real-time data exchange for mobile check-ins. Rigorous Testing: Validated 100% data accuracy and schema compliance using Postman. Security: Implemented secure token-based authentication. Result: Seamless integration allowing patients to book hospital queues via mobile app.
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Software Engineer(5)
Sasak X's avatar
Sasak X
Jakarta, Indonesia
Cybersecurity & Blockchain Expert Developer
Cybersecurity & Blockchain Expert Developer
Cover image for Opensource Based SOAR
Opensource Based SOAR
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Cover image for Searchable-Symmetric-Encryption
Searchable-Symmetric-Encryption
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6
Cover image for Zamrud-chain
Zamrud-chain
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4
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Software Engineer(3)
Muhammad Rydwan's avatar
Muhammad Rydwan
South Tangerang, Indonesia
Software Engineer crafting solutions with mobile & web tech
Software Engineer crafting solutions with mobile & web tech
Cover image for Shamo: E-commerce Shoes App Development
Shamo: E-commerce Shoes App Development
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Cover image for ReMedi Medicine Management App Development
ReMedi Medicine Management App Development
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Cover image for Mobile Trading App Development for Reku.id
Mobile Trading App Development for Reku.id
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5
Cover image for BIONS Investment Platform Development
BIONS Investment Platform Development
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5
Software Engineer(2)
Randi Ardiansyah's avatar
Randi Ardiansyah
Parung Panjang, Indonesia
Software Engineer | Back End Developer | Laravel Developer
Software Engineer | Back End Developer | Laravel Developer
Cover image for Company Profile Waroengduasatoe
Company Profile Waroengduasatoe
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Cover image for Validate Third Party Claims Softfile Document
Validate Third Party Claims Softfile Document
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Cover image for Generate Claims Account Payable
Generate Claims Account Payable
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Software Engineer(3)
Daniel Abed's avatar
Daniel Abed
Tangerang, Indonesia
Experienced .NET Software Engineer
Experienced .NET Software Engineer
Cover image for WhatsApp Flow Manager
WhatsApp Flow Manager
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Cover image for Razor and .NET to create CRM
Razor and .NET to create CRM
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Cover image for Attendance App for a construction company
Attendance App for a construction company
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Software Engineer(2)