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Avinash K.
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Avinash K.

Mobile App Developer | iOS & Android | Full-Stack App Development

Full-stack software developer with 18+ years of experience building reliable, production-ready web and mobile applications. I specialize in PHP, JavaScript, backend architecture, API integrations, and mobile app development, with hands-on experience taking products from idea to launch. In my current role as a Senior Developer, I build and maintain production applications while independently developing and shipping mobile products under Anpixels LLC. My published apps include USCIS Case Tracker, Birdly AI an AI-powered bird identification app using on-device machine learning and Kids Games 3-5 No WiFi, an offline early-childhood education app. These products are live on the App Store. I’m comfortable owning the entire product development lifecycle, including: Frontend & UI/UX: Building intuitive, responsive, and user-friendly interfaces. Backend Development: Designing scalable application architecture and business logic. API Integrations: Connecting third-party services and building reliable data flows. Mobile Development: Developing, testing, and shipping production iOS applications. AI & Machine Learning: Integrating practical AI capabilities, including on-device machine learning. Deployment & App Store Submission: Managing production releases, troubleshooting, and maintaining live applications. What sets me apart is my ability to combine deep development experience with real-world product ownership. I understand the technical details, but I also focus on usability, reliability, and delivering software that people can actually use. Whether you need a mobile app built from scratch, an existing application improved, a backend developed, or a product taken from concept to production, I can help turn your requirements into a working, polished solution.

🇺🇸Roseville, United States$60/hr100% JSSSince Sep 2026

Earnings and projects

MRR
$823

Last 6 months ÷ 2, the fewest it counts (since Oct 2026)

World#56,740 / 412k
🇺🇸Country#9,049 / 62.1k
Revenue, last 30 days
—

Read daily since Oct 20, under 30 days

Total earnings
$1.7k

Billed in all: $1.8k

World#349,958 / 412k
🇺🇸Country#53,755 / 62.1k
Per project
$1.7k

$823 in the last 6 months

World#88,223 / 412k
🇺🇸Country#14,897 / 62.1k
Projects, last 6 months
2
0% fixed100% hourly
World#88,918 / 412k
🇺🇸Country#11,762 / 62.1k
Projects in all
1

Across 2 contracts

0% fixed100% hourly
World#360,671 / 412k
🇺🇸Country#53,151 / 62.1k

Earnings, last 30 days

$1.8k+$749 earned since Oct 20Billed in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$0.5k$1.0k$1.5k$2.0kOct 20Oct 29Nov 7

Tracked from Oct 20, 2026.

Skill rankings: Top 9% in Bootstrap

Ranked by MRR among everyone on Upwork with the skill.

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  7. #650Bootstrap6,899 freelancers · 🇺🇸 #42Top 9%
  8. #909Android App Development6,395 freelancers · 🇺🇸 #80Top 14%