Nyu
Freelance web & app developer. From landing pages to monitoring systems.
nyu@dev:~
story
- Hi, I'm Nyu.
- A developer in Yogyakarta with a background in Informatics, building websites and apps as a freelancer since 2025.
- From landing pages and web-based monitoring systems to Android apps that keep working without internet.
- Got an idea or a problem you want help with? Tell me about it by email first, and we'll find the shape that fits best.
Pick a command:
01
About
I'm Nyu, a developer in Yogyakarta with a background in Informatics from Sanata Dharma University. Since 2025 I've been working on website and app projects as a freelancer, from profile pages to web-based monitoring systems built with PHP and MySQL. I've also built an Android app that runs entirely without internet for community data collection in areas with limited signal, so I'm used to designing solutions that fit the conditions of the people using them. On the side, I teach Python basics to junior high school students, so I'm used to explaining technical things in simple language. I'm also interested in application security and artificial intelligence. Outside the screen, I like basketball and the gym, play games now and then, and enjoy taking photos.
If you have a website or app need, tell me about the problem by email first. We'll work out the most sensible shape together before I start building.
- Location
- Yogyakarta
- Education
- Informatics, Sanata Dharma University
- Freelance
- since 2025
02
Experience
Experiences that shaped how I build web and apps.
First client: a monitoring system, end to end
My first client project. I worked on a monitoring system end to end, from start to finish.
- PHP
- MySQL
1st Place, Web Development, IT Days 2026
Won 1st place in the Web Development category at IT Days 2026.
- Web Development
KKN community service: an offline Android app and a seminar paper
My KKN (community service program) project was building an offline Android app to record congregation members' data in an area with limited internet. At the end of the program, I wrote a paper on using Claude as a coding assistant to build apps like this, then took it to the USDB 2026 National Seminar.
- Kotlin
- Android Studio
- Claude
03
Skills
Frontend
- Next.js
- Tailwind
Backend
- PHP (Laravel)
- JavaScript (Express)
- MySQL
- PostgreSQL
- MongoDB
Comfortable with relational databases (MySQL, PostgreSQL), NoSQL (MongoDB), and building offline-first mobile apps.
Mobile Development
- Kotlin
Fullstack
End-to-end app development, from client-server architecture to database design, with a focus on performance and communication flow optimization.
Favorite AI assistants
- Claude Code
- ChatGPT
- GitHub Copilot
- DeepSeek
- Gemini
- Cursor
- AntiGravity
What I can build
- Profile websites & landing pages
- Web apps
- Monitoring systems & dashboards
- Have another idea? Let's talk →
04
Certificates
05
Start a project
Pick a few things below, then copy the summary and paste it into an email. Press an active choice again to unselect it. Nothing is sent from this page.
Brief summary
Pick a project type to see the summary.
Paste it into an email. The email address is in the Contact section →
06
Frequently asked questions
Email me your problem or need, it doesn't have to be tidy. I'll reply with a few questions, then we agree in writing on the scope, time estimate, and cost before I start working.
It depends on size and requirements. Websites usually take 3–14 days, apps 1–4 weeks. The clock starts once the requirements are clear, the down payment is received, and you've sent the materials needed. I'll give you an exact estimate after we discuss your needs.
There are 5 free revision rounds. One round is one batch of feedback sent at once. Additional revisions are charged at Rp85,000 per round. Requests for new features beyond the agreement are discussed separately.
For websites, a 50% down payment up front and 50% before handover. For apps, a 40% down payment, 30% when the first version can be tried, and 30% before handover. The down payment is non-refundable once work has started. Domain and hosting costs are itemized separately at the provider's price.
Yes. Bug fixes for my own work are free for 1 month after handover. After that, if I manage the hosting, paid monthly maintenance applies as part of the service, covering bug fixes, backups, system and security updates, and regular monitoring. If you manage the hosting and domain yourself, monthly maintenance is optional. The fee is discussed based on the project's needs. Domain and hosting costs are separate, at the provider's price.
Ideally the logo, text, and photos you already have. If you don't have them yet, we'll talk it through first: I'll help draft a text outline at no extra cost, and for the logo or photos you can use your own or have someone else make them. Content that isn't ready doesn't stop us from starting, but it affects the schedule.
Yes for small businesses and SMEs, from a business profile page to a simple record-keeping system. For clinics or services that store patients' personal data, the requirements are stricter (data security and confidentiality), so we'll first discuss what is needed before I give you a firm answer.
07
Comments
Leave a note or say hi. Comments appear right away; I remove inappropriate ones.
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08
Contact
Have an idea for a website, app, or monitoring system? Tell me what you need by email or on social media below.