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Aldo H.
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Aldo H.

Senior Mobile App & Full-Stack Developer | React | Flutter | CRM

I'm a Senior Mobile App & Full-Stack Developer with 7+ years of experience building and improving mobile applications, web applications, CRM systems, and custom software solutions for startups, businesses, and growing teams. I've built 60+ applications that are live on the Google Play Store and Apple App Store. I also have extensive experience working with CRM systems as a CRM expert and consultant, helping businesses improve workflows, manage customer data, and build scalable business solutions. I work across both frontend and backend development, helping clients turn ideas and requirements into reliable, scalable, and easy-to-use digital products. **Tech Stack:** **Mobile Development:** React Native, Expo, Flutter, FlutterFlow, iOS, Android **Frontend:** React, Next.js, TypeScript, JavaScript, Angular **Backend:** Node.js, Python, Java, REST APIs **Databases:** PostgreSQL, MongoDB, Supabase, Firebase, SQL Server **CRM & Business Applications:** CRM Development, CRM Customization, CRM Consulting, ERP Platforms, Dashboards, Admin Panels, Internal Tools, Business Automation **AI & Automation:** AI Integrations, Automation Workflows, AI-Powered Application Features **eCommerce:** Shopify, Shopify Liquid, WooCommerce **CMS:** WordPress, Elementor **Other:** API Integrations, Third-Party Services, System Integration, Database Management, Performance Optimization, Testing, Bug Fixing and Ongoing Development I can help with new application development, existing system modernization, CRM development and integration, mobile app improvements, API integrations, feature development, maintenance, and long-term technical support. My approach is simple: understand the business requirements, review existing systems, identify the best technical approach, and build reliable solutions without unnecessary complexity or redevelopment. If you have a project in mind, feel free to share the details. I'm happy to discuss your requirements and find the best way to move forward. **Skills & Keywords:** #MobileAppDeveloper #ReactNativeDeveloper #FlutterDeveloper #iOSDeveloper #AndroidDeveloper #FullStackDeveloper #SoftwareEngineer #CRMDeveloper #CRMConsultant #CRMIntegration #CRMDevelopment #ERPDevelopment #PythonDeveloper #NodeJSDeveloper #BackendDeveloper #APIIntegration #SystemIntegration #SaaSDeveloper #AIIntegration #Firebase #Supabase #PostgreSQL #MongoDB #SQLServer #ShopifyDeveloper #AppDevelopment #MobileAppDevelopment #BusinessAutomation #MVPDevelopment #ApplicationModernization

🇺🇸Fort Lauderdale, United States$55/hr100% JSS5.00 (4)Since Jan 2026

Earnings and projects

MRR
$875

Last 6 months ÷ 6

World#54,014 / 412k
🇺🇸Country#8,730 / 62.1k
Revenue, last 30 days
$0

Last 6 months: $5.2k

Total earnings
$6.7k

Billed in all: $7k

World#229,774 / 412k
🇺🇸Country#36,378 / 62.1k
Per project
$839

$5.2k in the last 6 months

World#137,694 / 412k
🇺🇸Country#23,398 / 62.1k
Projects, last 6 months
1
0% fixed100% hourly
World#128,096 / 412k
🇺🇸Country#16,472 / 62.1k
Projects in all
8
75% fixed25% hourly
World#223,563 / 412k
🇺🇸Country#31,849 / 62.1k

Earnings, last 30 days

$7kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$6.9k$7.0k$7.1k$7.2kOct 9Oct 24Nov 8

Skill rankings: Top 10% in Apple Xcode

Ranked by MRR among everyone on Upwork with the skill.

  1. #85Apple Xcode881 freelancers · 🇺🇸 #10Top 10%
  2. #88Android SDK805 freelancers · 🇺🇸 #1Top 11%
  3. #353Liquid1,844 freelancers · 🇺🇸 #60Top 19%
  4. #360Web Application Development2,030 freelancers · 🇺🇸 #35Top 18%
  5. #521CRM Development2,819 freelancers · 🇺🇸 #88Top 18%
  6. #533iOS3,908 freelancers · 🇺🇸 #59Top 14%
  7. #608Android4,975 freelancers · 🇺🇸 #57Top 12%
  8. #881Android App Development6,395 freelancers · 🇺🇸 #76Top 14%