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I will develop android apps with kotlin firebase and pos device support
Avantex Smart
Level 1
About this gig
Looking for an Android App Expert in Kotlin, Firebase, and POS devices?
You are in the right place.
With 9+ years of hands-on experience, I specialize in building, fixing, and scaling Android apps from mobile commerce to advanced POS systems (Nexgo, Pax, Topwise), and everything in between.
WHAT I CAN DO FOR YOU:
- Full Android app development (Kotlin/Java)
- POS terminal apps for Nexgo, Topwise, PAX
- Firebase setup: Auth, Firestore, Notifications
- Fix critical bugs, crashes, slow performance
- Google Maps, AppFlyer, Retrofit API integration
- In-app payments, Admob, splash screen, onboarding
- TensorFlow Lite mobile deployment
- FlutterFlow screen-to-Android conversion
Whether you are building from scratch, fixing bugs, or optimizing your apps performance Ill deliver fast, secure, and scalable solutions.
WHO I WORK WITH
- Business owners building mobile solutions
- Companies using Android POS devices (PAX, Nexgo, Topwise)
- Startups building scalable apps with maps and notifications
- Anyone tired of slow, buggy Android apps
Please message me before ordering so were 100% aligned on scope and timelines.
Lets build an app that performs, converts, and delights your users.
Get to know Avantex Smart
Avantex Smart
Expert Execution Every Time
Level 1
- FromNigeria
- Member sinceNov 2022
- Avg. response time1 hour
- Last delivery2 months
Languages
English, French
With over 9 years of experience delivering quality across sectors like finance, mobile apps, digital marketing, website design, and project management, I ensure every client’s project is completed with precision and satisfaction. Let’s get started today.
Among my clients
Princess Akeema
Health & Wellness
FAQ
Can you build apps for Nexgo, Pax, or Topwise devices?
Absolutely. I’ve worked with all major Android POS SDKs and can build, test, and debug POS-based apps seamlessly.
I have an unfinished or buggy app. Can you help?
Yes. I specialize in app rescue. Just send me your codebase and I’ll take it from there.
Do you also support Java or FlutterFlow projects?
Yes! I work with Kotlin, Java, and FlutterFlow depending on your need.
Will you submit the app to Play Store?
Yes, if requested. Submission is free with Standard and Premium packages.
What if I need backend integration or complex features
No problem. I handle RESTful APIs, Firebase, and custom logic (e.g., payments, location, user auth).
