You will get a polished full-stack web and mobile app solution
Rising Talent
Rising Talent
Project details
You will get a working Web app or Flutter mobile app connected to a real Firebase backend, not just static screens. I currently build and maintain a production app used by real users in Japan, with a Flutter mobile app and web app sharing a single Firebase/Firestore backend. I focus on clean, maintainable code, proper data structure, and getting your app working end-to-end rather than just looking good on the surface. I communicate clearly in English or Japanese and deliver reliably on schedule, so you always know where your project stands.
Programming Languages
TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$300
|
Standard
$1,000
|
Advanced
$2,000
|
|---|---|---|---|
| Delivery Time | 3 days | 30 days | 50 days |
Number of Revisions | 1 | 1 | 1 |
Number of Pages | 3 | 10 | 15 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$50 - $100
Additional Revision
+$100
Additional Page
(+ 2 Days)
+$100
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SI
Saki I.
Aug 1, 2026
Mobile App Developer Needed for Building App from Scratch
I worked with Edmer on a project for approximately nine months, and he was extremely reliable throughout the entire engagement. He is highly knowledgeable, communicates clearly and promptly, and made it easy to trust that the project was in good hands.
One of his greatest strengths is his ability to think ahead. Before important decisions needed to be made, he would proactively identify potential issues, present different options, and clearly explain the pros and cons of each approach. This helped keep the project moving smoothly and made the decision-making process much easier.
He didn't just complete the tasks he was assigned, he also took the initiative to suggest improvements that made the product better overall. He provided regular progress updates and explained technical concepts in a way that was easy to understand, which made collaboration seamless from start to finish.
He is responsible, professional, and a pleasure to work with. I would feel confident hiring him again for a long-term project and highly recommend him to anyone looking for a skilled, proactive, and dependable developer.
One of his greatest strengths is his ability to think ahead. Before important decisions needed to be made, he would proactively identify potential issues, present different options, and clearly explain the pros and cons of each approach. This helped keep the project moving smoothly and made the decision-making process much easier.
He didn't just complete the tasks he was assigned, he also took the initiative to suggest improvements that made the product better overall. He provided regular progress updates and explained technical concepts in a way that was easy to understand, which made collaboration seamless from start to finish.
He is responsible, professional, and a pleasure to work with. I would feel confident hiring him again for a long-term project and highly recommend him to anyone looking for a skilled, proactive, and dependable developer.
About Edmer De Jesus
Web App & Mobile App Developer | Project Leader | JP/EN Teacher
Shibuya, Japan - 9:25 am local time
Throughout my career, I’ve developed a strong track record in product design, implementation,
integration testing, and bug fixing for Web, Android, iOS applications. I've had the opportunity to
work on a variety of web and mobile applications, particularly in the E-COMMERCE space, including shopping
carts and IoT applications.
I’m passionate about creating user-friendly and innovative app solutions, and I’m excited to bring
my expertise to new challenges.
I have a Project Leader experience with my first IT company in Kawasaki, Kanagawa.
I had experience making an app from scratch.
I can help you build your app that will be modern, visually appealing and can be user friendly.
Steps for completing your project
After purchasing the project, send requirements so Edmer De Jesus can start the project.
Delivery time starts when Edmer De Jesus receives requirements from you.
Edmer De Jesus works on your project following the steps below.
Revisions may occur after the delivery date.
I review your requirements, confirm the app's scope, screens, and features.
I build the 3 screens in Flutter with clean, responsive layouts based on your requirements or reference designs