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Andrey C.

Los Angeles, California

$35/hr
4.8
97 jobs

๐Ÿ…ท๐Ÿ…ด๐Ÿ†ˆ ๐Ÿ‘‹ Hi! Iโ€™m a veteran full stack developer, mobile app developer, and team lead leading a senior long-term team capable of taking products from idea โ†’ launch โ†’ scale โ†’ maintenance. Iโ€™ve been in professional software development for 25+ years and mobile app development for 17+ years, delivering scalable iOS Development, Android App Development, Flutter, React Native, and backend-driven platforms across startups, SaaS products, enterprises, and high-growth mobile ecosystems. Clients usually come to us when they need more than just coding - they need a technical partner who understands architecture, business logic, scalability, monetization, and long-term product growth. As a mobile application developer, ios developer, android developer, flutter developer, and full stack developer, I specialize in building high-performance native and cross-platform mobile apps used by millions of users worldwide. I work with native iOS development using Swift, SwiftUI, UIKit, and Objective-C, native Android development with Kotlin and Java, as well as Flutter, React Native, and hybrid app development for scalable cross-platform delivery. Over the years, Iโ€™ve helped build 700+ apps across fintech, healthcare, social networking, education, entertainment, e-commerce, IoT, and enterprise SaaS. My experience covers the full mobile app development lifecycle - system architecture, UI/UX implementation, backend development, API Integration, DevOps, deployment, scaling, optimization, and long-term product evolution. ๐Ÿ† Why Clients Choose Me โœ”๏ธ 25+ years as a full stack developer and software architectโ€จ โœ”๏ธ 17+ years in mobile app developmentโ€จ โœ”๏ธ 700+ mobile apps delivered across iOS, Android, Flutter & React Nativeโ€จ โœ”๏ธ Expertise in native app development, hybrid app development, and scalable backend systemsโ€จ โœ”๏ธ Reduced crash rates by up to 70% and improved app performance by 50% on production appsโ€จ โœ”๏ธ Built mobile platforms used by 5M+ users worldwideโ€จ โœ”๏ธ Strong experience with Mobile App Improvement, Mobile App Bug Fix, and modernization projectsโ€จ โœ”๏ธ Long-term experience with startups, SaaS companies, enterprises, and Fortune 500 clientsโ€จ โœ”๏ธ Full-cycle delivery: architecture โ†’ development โ†’ deployment โ†’ scaling โ†’ support ๐Ÿ“ฑ Native iOS & Android Development โ€ข Native iOS Development with Swift, SwiftUI, UIKit, Combine, Objective-C โ€ข Native Android App Development with Kotlin, Java, Jetpack Compose โ€ข Smartphone app optimization for performance, UX, and scalability โ€ข Clean Architecture, MVVM, VIPER, modular app structures โ€ข Device integrations: BLE, GPS, biometrics, camera, sensors, HealthKit, Google Fit โ€ข App Store & Google Play deployment pipelines โ€ข Multi-language apps with localization and accessibility support โ€ข Advanced performance optimization and memory management ๐Ÿ” Cross-Platform & Hybrid App Development โ€ข Flutter developer expertise for scalable cross-platform products โ€ข React Native development with custom native module integrations โ€ข Kotlin Multiplatform Mobile (KMM/KMP) โ€ข Shared business logic across iOS and Android โ€ข Adaptive UI systems and responsive mobile layouts โ€ข Cross-platform architectures reducing development time by 40โ€“60% ๐Ÿ”ง Backend, API Integration & Infrastructure โ€ข REST API and GraphQL API Integration โ€ข Firebase, Node.js, PHP, and scalable backend services โ€ข Authentication systems, caching, offline sync, token management โ€ข SQLite, Room, Realm, Core Data โ€ข Push notifications: FCM, APNS, OneSignal โ€ข Real-time chat, geolocation systems, dashboards, and live data platforms โ€ข Backend-connected mobile ecosystems with scalable cloud infrastructure โš™๏ธ DevOps, CI/CD & Delivery โ€ข Fastlane, GitHub Actions, Bitrise, Firebase App Distribution โ€ข Automated testing and deployment pipelines โ€ข Beta testing, crash analytics, staged rollouts โ€ข CI/CD optimization for faster and safer release cycles โ€ข AWS and scalable cloud deployment workflows ๐Ÿ“Š Analytics & Monetization โ€ข Firebase Analytics, Mixpanel, Amplitude, Google Analytics โ€ข In-app purchases, subscriptions, AdMob, Facebook Ads โ€ข Retention optimization and funnel analytics โ€ข Data-driven product iteration and growth optimization ๐Ÿ”Œ Advanced SDK & Hardware Integrations โ€ข AVFoundation, CameraX, Core Bluetooth, Core Motion โ€ข Stripe, Twilio, Agora, Sendbird, Mapbox, OpenCV โ€ข IoT dashboards, BLE integrations, voice/video systems โ€ข Camera-heavy and sensor-based mobile applications ๐ŸŒ Industries Served โ€ข Fintech & Banking โ€ข Healthcare & Fitness โ€ข E-commerce & Retail โ€ข Smart Home & IoT โ€ข Education & E-learning โ€ข Social Networking โ€ข Travel & Hospitality โ€ข Entertainment & Media โ€ข SaaS & Enterprise Platforms โœ… Letโ€™s Build a Mobile Product That Scales!

  • Mobile App Development
  • iOS Development
  • Android App Development
  • iPad App Development
  • Android
  • iOS
  • Smartphone
  • Flutter
  • Swift
  • Objective-C
  • Firebase
  • Apple Xcode
  • In-App Purchases
  • API Integration
  • Hybrid App Development
  • User Authentication
  • User Profile Creation
  • JavaScript
  • React Native
  • Kotlin
Andrew M.

Scottsdale, Arizona

$45/hr
5.0
169 jobs

โœ… ๐— ๐˜‚๐—น๐˜๐—ถ๐—ฝ๐—น๐—ฒ ๐Ÿณ-๐Ÿด ๐—ณ๐—ถ๐—ด๐˜‚๐—ฟ๐—ฒ ๐˜€๐˜‚๐—ฐ๐—ฐ๐—ฒ๐˜€๐˜€๐—ฒ๐˜€ & ๐—ฆ๐—ฎ๐—ฎ๐—ฆ ๐—ฐ๐—น๐—ถ๐—ฒ๐—ป๐˜๐˜€/๐—ฎ๐—ฝ๐—ฝ๐˜€ ๐—ฎ๐—ฐ๐—พ๐˜‚๐—ถ๐—ฟ๐—ฒ๐—ฑ. โœ… ๐Ÿณ๐Ÿฑ+ ๐—ฎ๐—ฝ๐—ฝ๐˜€ ๐—ฏ๐˜‚๐—ถ๐—น๐˜. ๐Ÿญ๐Ÿญ+ ๐˜†๐—ฒ๐—ฎ๐—ฟ๐˜€ ๐—ฝ๐—ฟ๐—ผ๐—ณ๐—ฒ๐˜€๐˜€๐—ถ๐—ผ๐—ป๐—ฎ๐—น ๐—ฒ๐˜…๐—ฝ๐—ฒ๐—ฟ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ. โœ… ๐—”๐—ฐ๐—ฐ๐˜‚๐—ฟ๐—ฎ๐˜๐—ฒ & ๐—ด๐˜‚๐—ฎ๐—ฟ๐—ฎ๐—ป๐˜๐—ฒ๐—ฒ๐—ฑ ๐—พ๐˜‚๐—ผ๐˜๐—ฒ๐˜€ ๐˜„๐—ถ๐˜๐—ต ๐Ÿฏ๐Ÿฌ-๐Ÿฐ๐Ÿฌ% ๐—น๐—ผ๐˜„๐—ฒ๐—ฟ ๐—ฐ๐—ผ๐˜€๐˜๐˜€ ๐—ฎ๐—ป๐—ฑ ๐—ฑ๐—ฒ๐˜ƒ ๐˜๐—ถ๐—บ๐—ฒ๐˜€ ๐˜๐—ต๐—ฟ๐—ผ๐˜‚๐—ด๐—ต ๐—ฝ๐—ฟ๐—ผ๐—ฝ๐—ฟ๐—ถ๐—ฒ๐˜๐—ฎ๐—ฟ๐˜† ๐—ณ๐—ฟ๐—ฎ๐—บ๐—ฒ๐˜„๐—ผ๐—ฟ๐—ธ ๐˜‚๐˜€๐—ฒ(prebuilt-SaaS code). โœ… ๐—ฃ๐—ต๐—ฒ๐—ป๐—ผ๐—บ๐—ฒ๐—ป๐—ฎ๐—น ๐—ฐ๐—ผ๐—บ๐—บ๐˜‚๐—ป๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ฎ๐—ป๐—ฑ ๐—ฝ๐—ฟ๐—ผ๐—ท๐—ฒ๐—ฐ๐˜ ๐—บ๐—ฎ๐—ป๐—ฎ๐—ด๐—ฒ๐—บ๐—ฒ๐—ป๐˜ ๐˜€๐—ธ๐—ถ๐—น๐—น๐˜€. ๐—œ๐—ป๐˜๐—ฒ๐—น๐—น๐—ถ๐—ด๐—ฒ๐—ป๐˜ ๐—ฑ๐—ฒ๐˜ƒ ๐—ฝ๐—ฟ๐—ผ๐—ฐ๐—ฒ๐˜€๐˜€ ๐—ณ๐—ผ๐—น๐—น๐—ผ๐˜„๐—ฒ๐—ฑ ๐—ฏ๐˜‚๐—ถ๐—น๐˜ ๐˜๐—ต๐—ฟ๐—ผ๐˜‚๐—ด๐—ต ๐—ผ๐˜๐—ต๐—ฒ๐—ฟ ๐—ฝ๐—ฟ๐—ผ๐—ฑ๐˜‚๐—ฐ๐˜ ๐˜€๐˜‚๐—ฐ๐—ฐ๐—ฒ๐˜€๐˜€๐—ฒ๐˜€. โœ… ๐—ฆ๐—ฐ๐—ฎ๐—น๐—ฎ๐—ฏ๐—น๐—ฒ ๐˜€๐—ผ๐—น๐˜‚๐˜๐—ถ๐—ผ๐—ป๐˜€, ๐—ฒ๐—ป๐˜๐—ฒ๐—ฟ๐—ฝ๐—ฟ๐—ถ๐˜€๐—ฒ-๐—ฟ๐—ฒ๐—ฎ๐—ฑ๐˜† ๐—ณ๐—ฟ๐—ผ๐—บ ๐—น๐—ฎ๐˜‚๐—ป๐—ฐ๐—ต. โœ… ๐—จ๐—ฆ ๐—ฐ๐—น๐—ถ๐—ฒ๐—ป๐˜ ๐˜€๐—ฝ๐—ฒ๐—ฐ๐—ถ๐—ฎ๐—น๐˜๐˜†. Hi, Iโ€™m Andrew! I specialize in delivering polished SaaS apps consistently focused on earning revenue. ๐—œ๐—ป๐˜ƒ๐—ถ๐˜๐—ฒ ๐—บ๐—ฒ ๐˜๐—ผ ๐˜†๐—ผ๐˜‚๐—ฟ ๐—ฝ๐—ฟ๐—ผ๐—ท๐—ฒ๐—ฐ๐˜ ๐—ผ๐—ป ๐—จ๐—ฝ๐˜„๐—ผ๐—ฟ๐—ธ ๐—ผ๐—ฟ ๐˜€๐—ฒ๐—ป๐—ฑ ๐—บ๐—ฒ ๐—ฎ ๐—ฑ๐—ถ๐—ฟ๐—ฒ๐—ฐ๐˜ ๐—บ๐—ฒ๐˜€๐˜€๐—ฎ๐—ด๐—ฒ ๐—ฎ๐—ป๐—ฑ ๐—ถ๐—ณ ๐˜๐—ต๐—ฒ๐—ฟ๐—ฒโ€™๐˜€ ๐—ฎ ๐—น๐—ถ๐—ธ๐—ฒ๐—น๐—ถ๐—ต๐—ผ๐—ผ๐—ฑ ๐—ผ๐—ณ ๐—ฎ ๐—ด๐—ผ๐—ผ๐—ฑ ๐—ณ๐—ถ๐˜ ๐˜๐—ผ ๐˜„๐—ผ๐—ฟ๐—ธ ๐˜๐—ผ๐—ด๐—ฒ๐˜๐—ต๐—ฒ๐—ฟ, ๐—œโ€™๐—น๐—น ๐—ถ๐—ป๐˜ƒ๐—ถ๐˜๐—ฒ ๐˜†๐—ผ๐˜‚ ๐˜๐—ผ ๐—ฏ๐—ผ๐—ผ๐—ธ ๐—ฎ ๐—ฐ๐—ผ๐—บ๐—ฝ๐—น๐—ถ๐—บ๐—ฒ๐—ป๐˜๐—ฎ๐—ฟ๐˜† ๐—ฐ๐—ผ๐—ป๐˜€๐˜‚๐—น๐˜๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ฐ๐—ฎ๐—น๐—น ๐˜๐—ผ๐—ด๐—ฒ๐˜๐—ต๐—ฒ๐—ฟ. ๐Ÿ—ฃ ๐—๐—ผ๐—ต๐—ป ๐— ๐˜‚๐—น๐—น๐—ฒ๐—ป๐—ต๐—ผ๐—น๐˜‡ - ๐—›๐—ฒ๐—ฎ๐—ฑ ๐—ผ๐—ณ ๐—ฆ๐—ฎ๐—น๐—ฒ๐˜€, ๐—ฆ๐˜๐—ฟ๐—ฎ๐˜๐—ฒ๐—ด๐—ถ๐—ฐ ๐—˜๐—ป๐˜๐—ฒ๐—ฟ๐—ฝ๐—ฟ๐—ถ๐˜€๐—ฒ - ๐—จ๐—ฏ๐—ฒ๐—ฟ ๐—˜๐—ฎ๐˜๐˜€ โ Andrew is the most skilled freelancer and developer I have ever worked with, and I have worked with a lot. He was able to take very broad ideas and turn them into actionable insights and plans in a way I could never imagine was possible. Andrew is the best possible thing to happen to our business and the definition of a true professional. I could not recommend him enough. Anyone who has the opportunity to work with Andrew should consider themselves extremely lucky. โž I excel at expertly guiding the app dev process to max out your revenue-earning potential in contrast to your costs, and to steer you away from common SaaS app pitfalls. Client Outcome Examples: โšก amzalert.com (8-Figure Acquisition - Rebuilt In 4 Months) โšก launchcontrol.us (8-Figure Annual Recurring Revenue - ARR) โšก GuestBan.com (Concept-To-Live in 5 Months - 1M+ Monthly App Checkins) My support is based on hard-won successes built through more than a decade of SaaS app obsession. Most of my clients are: โ˜‘๏ธ Existing Businesses - Post-revenue โ˜‘๏ธ Solopreneurs & Small Teams - Wanting to build an MVP app โ˜‘๏ธ Funded Startups - Focused on turning funding into MRR โ˜‘๏ธ Existing Early Stage SaaS - Want to rebuild and scale up Iโ€™m the founder of a small, hand-picked team of talented humans. Iโ€™m personally involved in all projects, and we only employ senior developers and native English speakers from the US for project management and communication. My team and I are able to consistently reduce dev costs by about 30-40% by leveraging pre-built development frameworks for common app experiences like the user login or checkout, for example, while reserving valuable dev hours for truly custom functionality. Every project we build delivers: ๐Ÿ“ฑCross Device Compatibility - Desktop - Mobile - Tablet ๐Ÿ“ˆ App Speed Optimization ๐Ÿงฉ Scaleable - Cost-Effective Feature Addition Potential ๐Ÿ›ก๏ธ Security ๐Ÿ“Š User Analytics & Internal Dashboards ๐ŸŒ Multi-Language Localization ๐Ÿค– Quality Assurance - QA ๐Ÿ“œ Paid User Subscription, Billing & Renewal Management Thanks for taking the time to learn more about me. Invite me to your project or send me a direct message if youโ€™re interested in working together. Talk soon! Andrew Mace - Founder - Lean Engineering Highlights of the work I have extensive experience in includes: SaaS MVP โ€ข AI Automation โ€ข No-Code/Low-Code โ€ข Process Automation โ€ข RPA โ€ข .NET 8 โ€ข Python โ€ข AWS โ€ข Azure โ€ข Docker โ€ข Serverless โ€ข OpenAI / ChatGPT โ€ข Generative AI โ€ข Zapier โ€ข Make.com โ€ข UiPath โ€ข Power Automate โ€ข n8n โ€ข Bubble โ€ข Airtable โ€ข Stripe โ€ข PayPal โ€ข Twilio โ€ข Slack โ€ข Teams โ€ข REST APIs โ€ข Webhooks โ€ข SQL โ€ข PostgreSQL โ€ข Redis โ€ข Power BI โ€ข KPI Dashboards โ€ข ETL โ€ข Airflow โ€ข Real-Time Chat โ€ข Push Notifications โ€ข Subscription Billing โ€ข CRM Integration โ€ข Lead Generation Bots โ€ข Data Analytics โ€ข Digital Transformation โ€ข Workflow Automation โ€ข Rapid Prototyping

  • C#
  • SaaS
  • .NET Framework
  • SQL
  • ASP.NET
  • Web Development
  • Web Application
  • Microsoft Azure
  • Chatbot
  • Customer Portal
  • Customer Relationship Management
  • B2B Marketing
  • Machine Learning
  • Chatbot Development
  • Artificial Intelligence
Vladislav K.

Redmond, Washington

$35/hr
5.0
5 jobs

Need a โญ ๐—ง๐—ผ๐—ฝ ๐—ฅ๐—ฎ๐˜๐—ฒ๐—ฑ ๐—ผ๐—ป ๐—จ๐—ฝ๐˜„๐—ผ๐—ฟ๐—ธ Full Stack SaaS Developer who's shipped products to ๐Ÿ”ฅ ๐Ÿ๐— + ๐˜‚๐˜€๐—ฒ๐—ฟ๐˜€ ๐—ฎ๐—ป๐—ฑ ๐—ต๐—ฎ๐—ป๐—ฑ๐—น๐—ฒ๐—ฑ ๐Ÿ“๐ŸŽ๐ŸŽ๐—ž ๐—ฐ๐—ผ๐—ป๐—ฐ๐˜‚๐—ฟ๐—ฟ๐—ฒ๐—ป๐˜ ๐—ฐ๐—ผ๐—ป๐—ป๐—ฒ๐—ฐ๐˜๐—ถ๐—ผ๐—ป๐˜€? I build SaaS applications, Full Stack web apps, AI SaaS platforms, AI automation systems, and scalable full-stack backends with React, Next.js, Node.js, and Python - fast, production-ready, and built to grow. ๐Ÿ“ฉ Comment โ€œ๐Œ๐€๐โ€ and Iโ€™ll send you a ๐…๐‘๐„๐„ system blueprint with a clear plan of how your product should be built or scaled. Available now - July 7 ๐–๐ก๐จ ๐ˆ ๐€๐ฆ โญโญโญโญโญ๐—œ'๐—บ ๐—ฎ ๐—™๐˜‚๐—น๐—น ๐—ฆ๐˜๐—ฎ๐—ฐ๐—ธ ๐—ฆ๐—ฎ๐—ฎ๐—ฆ ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—ฒ๐—ฟ, ๐—™๐˜‚๐—น๐—น ๐—ฆ๐˜๐—ฎ๐—ฐ๐—ธ ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ, ๐—ฎ๐—ป๐—ฑ ๐—ฎ๐—ด๐—ฒ๐—ป๐—ฐ๐˜† ๐—น๐—ฒ๐—ฎ๐—ฑ ๐—ฏ๐—ฎ๐˜€๐—ฒ๐—ฑ ๐—ถ๐—ป ๐—ฅ๐—ฒ๐—ฑ๐—บ๐—ผ๐—ป๐—ฑ. What sets me apart is the combination of enterprise-scale delivery (retail, FinTech, healthcare, iGaming) with startup speed - I've reduced manual work by up to 60% for clients through AI-powered workflow automation and have led teams scaling SaaS platforms and full-stack products past one million active users. Here's what I build: ๐Ÿ”น SaaS Web Apps & Full Stack Development - React, Next.js, TypeScript frontends paired with Node.js or Python backends, Supabase/PostgreSQL, Stripe, and full API integration ๐Ÿ”น AI SaaS & AI Automation Systems - n8n workflows, OpenAI/Claude integrations, CRM automation, document processing, and lead management pipelines ๐Ÿ”น Full Stack Backend & APIs - FastAPI, Django, REST, GraphQL, real-time systems, cloud infrastructure (AWS, GCP, Azure), Docker, Kubernetes, CI/CD ๐Ÿ”น SaaS Dashboards & Internal Tools - analytics platforms, admin panels, logistics dashboards, custom CRM systems ๐Ÿ”น Data & Integrations - PostgreSQL, MongoDB, Redis, Elasticsearch, Excel-to-CRM sync, webhook pipelines for SaaS applications Retail loyalty platform - 1M+ users, 20% growth Live streaming portal - 500K peak concurrent connections OCR document automation - 66% faster processing Lead automation system - 43% faster response time AI internal workflow platform - 45% faster operations Certified: Generative AI with OpenAI API (DeepLearning.AI) | Full-Stack AI Automation Engineering | Full Stack SaaS Development Send me a message describing your SaaS, AI, or Full Stack project and I'll respond within a few hours. I'm available now and happy to share a free system blueprint outlining how your SaaS application, Full Stack product, or AI platform should be built or scaled.

  • React
  • Next.js
  • Node.js
  • Full-Stack Development
  • Python
  • Artificial Intelligence
  • JavaScript
  • SaaS
  • MongoDB
  • MySQL
  • TypeScript
  • API Development
  • PostgreSQL
  • Automation
  • Web Development
  • SaaS Development
  • AI Agent Development
  • Front-End Development
  • Automated Workflow
  • Web Design
Guibin Z.

Plano, Texas

$85/hr
5.0
2 jobs

๐Ÿš€ Ex-Meta / Yahoo | AI Full-Stack Engineer | GenAI, LLM, SaaS, APIs I build end-to-end AI products โ€” from LLM-powered features to scalable full-stack systems. With 10+ years at Meta, Yahoo, and startups, Iโ€™ve shipped production systems used by millions and designed platforms that scale reliably. I focus on delivering real, usable AI applications โ€” not just demos. โœ… What I Can Help You Build: โ€ข GenAI Applications: GPT / Claude integrations, AI copilots, workflows, prompt engineering โ€ข RAG Systems: chat over documents, knowledge bases, retrieval pipelines โ€ข Full-Stack AI Apps: frontend + backend + APIs + AI integration โ€ข AI Agents: tool-using agents, automation workflows โ€ข Backend Systems: scalable APIs, microservices, cloud architecture โ€ข AI SaaS: MVP โ†’ production-ready systems ๐Ÿ’ผ Experience Highlights: โ€ข Meta โ€” built large-scale production systems โ€ข Yahoo โ€” personalization systems serving billions of requests/day โ€ข Indeed / Workday โ€” scalable backend and cloud platforms โ€ข Tech Lead โ€” owned architecture and built systems end-to-end โ€ข Real-time systems processing TBs/day (Kafka, distributed systems) ๐Ÿ“Š What You Get: โ€ข End-to-end builder (AI + full-stack + product) โ€ข Production-ready systems, not fragile prototypes โ€ข Scalable architecture from day one โ€ข Fast execution and clear communication ๐Ÿ”ง Tech Stack: AI: GPT-4/5, Claude, RAG, AI agents, prompt engineering Frontend: React, Next.js, TypeScript Backend: Python (FastAPI, Flask), Node.js, Java, Scala, APIs, microservices Cloud: AWS (S3, Lambda), serverless architecture Infra: Docker, Kubernetes, CI/CD Data: Spark, Kafka Databases: PostgreSQL, MySQL, MongoDB, Redis ๐ŸŽฏ Typical Projects: โ€ข AI chatbot / copilot โ€ข RAG over internal/company data โ€ข AI SaaS MVP โ€ข Full-stack GenAI applications โ€ข Workflow automation with LLMs Keywords: Generative AI, GenAI, LLM, GPT-4, GPT-5, Claude, OpenAI API, Anthropic Claude, RAG, Retrieval Augmented Generation, AI Agents, Prompt Engineering, AI Automation, Chatbots, Copilots, Python, FastAPI, Flask, Full-Stack Development, Frontend Development, Backend Development, React, Next.js, TypeScript, Node.js, API Design, REST APIs, GraphQL, Microservices Architecture, SaaS Development, Multi-Tenant Systems, Authentication, OAuth, JWT, Cloud Architecture, AWS, Serverless, Docker, Kubernetes, CI/CD, Distributed Systems, System Design, PostgreSQL, MySQL, MongoDB, Redis, Machine Learning, MLOps, Data Engineering, Apache Spark, Kafka Industries: AI Platforms, SaaS, Enterprise Software, AdTech, MarTech, E-commerce, Marketplaces, FinTech, Payments, Healthcare, HealthTech, Developer Tools, Productivity Tools, Analytics Platforms, Data Platforms, Media, Social Platforms

  • Artificial Intelligence
  • Machine Learning
  • Large Language Model
  • Retrieval Augmented Generation
  • Claude
  • API
  • React
  • TypeScript
  • Next.js
  • Node.js
  • JavaScript
  • Python
  • Docker
  • Amazon Web Services
  • GraphQL
  • PostgreSQL
  • MLOps
  • REST API
  • MongoDB
  • Kubernetes
Ahmad A.

California City, California

$14/hr
5.0
6 jobs

Anthropic-certified (2026): Claude Code in Action ยท Building with the Claude API ยท Model Context Protocol ยท AI Agent Skills. I build AI systems that run real business workflows, not demos that break in production. 10+ years shipping production-grade AI, working daily in Claude Code, Cursor, and Lovable to deliver 3โ€“5x faster without sacrificing code quality. Recent AI Platforms I've Shipped B2B sales intelligence & revenue forecasting platform with deal scoring Voice-enabled SaaS appointment scheduling system (Vapi + ElevenLabs + Twilio) Agentic real estate investment analytics with predictive market forecasting n8n + OpenAI marketing automation platform with LLM-driven decisioning LLM-powered planning & collaboration SaaS with intelligent summarization Multi-agent customer support system with live CRM action and tool calling What I Build For Clients Agentic AI & Autonomous Agents: Multi-step reasoning systems with LangChain, LangGraph, CrewAI, and MCP Servers that plan, act, and self-correct across long-horizon workflows. AI Voice Agents: Real-time inbound/outbound voice systems using Vapi, Retell AI, ElevenLabs, Whisper, and Twilio for booking, lead qualification, and 24/7 support. RAG & Knowledge Systems: Citation-accurate retrieval pipelines using Pinecone, Qdrant, ChromaDB, and GraphRAG over private documents and databases. n8n Workflow Automation: Event-driven automation connecting OpenAI, Claude, CRMs, GoHighLevel, Slack, and Notion into autonomous business operations. AI SaaS & Rapid MVPs: Production-grade products built with FastAPI, Next.js, and modern AI-first tooling: shipped in days, not months. Forecasting & Predictive Analytics: Time-series forecasting, demand prediction, and AI-driven analytics dashboards with real-time insights. Tech Stack LLMs: GPT-4o, Claude Sonnet, Gemini 2.0, LLaMA 4, DeepSeek R1, Mistral Agentic: LangChain, LangGraph, CrewAI, AutoGen, LlamaIndex, PydanticAI, MCP Servers Voice AI: Vapi, Retell AI, ElevenLabs, Whisper, Twilio, Deepgram RAG/Vector: Pinecone, Qdrant, Weaviate, ChromaDB, FAISS, pgvector Automation: n8n, Make,com, Zapier Dev Tools: Claude Code, Cursor, Lovable, v0, Replit Backend: Python, FastAPI, Django, Node.js Frontend: React, Next.js, TypeScript, Tailwind Cloud: AWS, GCP, Azure, Docker, PostgreSQL, Redis, Supabase Why Clients Choose Me I think in systems, not features, every layer talks to each other reliably at production scale 10+ years means I know what breaks in production before it becomes your problem Clear written technical spec before a single line of code is written Structured milestone delivery and maintainable architecture you can hand to any developer Ready to build? Send me your idea and I'll reply with a clear action plan within 30 minutes. Ahmad Ali

  • Artificial Intelligence
  • AI Agent Development
  • Large Language Model
  • OpenAI API
  • Generative AI
  • Retrieval Augmented Generation
  • n8n
  • AI Chatbot
  • AI Speech-to-Text
  • Vector Database
  • Prompt Engineering
  • Python
  • FastAPI
  • Claude
  • Automated Workflow
  • API Integration
  • Machine Learning
  • Natural Language Processing
  • Chatbot Development
  • Node.js
Mark R.

New York, New York

$32/hr
5.0
4 jobs

If you're looking for an ๐€๐ˆ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ž๐ซ, ๐€๐ˆ ๐„๐ง๐ ๐ข๐ง๐ž๐ž๐ซ, ๐…๐ฎ๐ฅ๐ฅ-๐’๐ญ๐š๐œ๐ค ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ž๐ซ, ๐๐ฒ๐ญ๐ก๐จ๐ง ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ž๐ซ, ๐จ๐ซ ๐๐š๐œ๐ค๐ž๐ง๐ ๐„๐ง๐ ๐ข๐ง๐ž๐ž๐ซ who can take full ownership of your product and turn it into a scalable, production-ready system, message me. Building software is easy. Building software that businesses can launch, scale, and rely on is where engineering makes the difference. I build AI-powered products, scalable SaaS platforms, backend systems, and modern full-stack web applications that help startups and businesses turn ideas into production-ready software. From AI agents and intelligent automation to enterprise SaaS platforms and API-driven systems, I focus on building solutions that are reliable, maintainable, and built for real users, not just prototypes. With 8+ years of experience, I work with founders and teams to design and develop complete software products, handling everything from system architecture and backend development to frontend interfaces and AI integration. ๐Ÿš€ What I Build I specialize in building end-to-end digital products, including: โ€ข AI-powered SaaS applications โ€ข AI agents & automation systems โ€ข LLM & RAG-based applications โ€ข Scalable backend systems & APIs โ€ข Full-stack web applications โ€ข Enterprise software platforms โ€ข Dashboards, admin panels & portals โ€ข Workflow automation tools โ€ข CRM & internal business systems ๐Ÿค– AI Engineering I design and integrate AI systems that add real functionality to products, not just experimental features. โ€ข OpenAI, Claude, Gemini integrations โ€ข LangChain, LangGraph, MCP โ€ข Retrieval-Augmented Generation (RAG) โ€ข Vector databases (Pinecone, Weaviate, ChromaDB) โ€ข AI agents & multi-agent systems โ€ข Semantic search & embeddings โ€ข Intelligent document processing โ€ข AI workflow automation โš™ Backend & Full-Stack Development I build secure and scalable systems that power real applications and users. โ€ข Python, FastAPI, Django โ€ข Node.js, Express.js โ€ข REST & GraphQL APIs โ€ข PostgreSQL, MySQL, MongoDB, Redis โ€ข Multi-tenant SaaS architecture โ€ข Authentication (JWT, OAuth, RBAC) โ€ข Payment integrations (Stripe, PayPal) โ€ข React, Next.js, TypeScript โ€ข Modern responsive UI development ๐Ÿ† What Iโ€™ve Built โœ” AI-powered SaaS platforms โœ” AI agents for business automation โœ” RAG-based knowledge systems โœ” Enterprise backend APIs โœ” CRM and ERP systems โœ” Customer portals and dashboards โœ” Internal workflow tools โœ” Marketplace platforms โœ” Scalable API-driven systems โœ” Full-stack business applications ๐Ÿ’ผ Industries I have worked with AI โ€ข SaaS โ€ข FinTech โ€ข Healthcare โ€ข LegalTech โ€ข HR Tech โ€ข EdTech โ€ข Logistics โ€ข E-commerce โ€ข Marketplaces โ€ข Enterprise Software โ€ข Automation Why Clients Work With Me โœ” End-to-end product development (idea โ†’ production) โœ” Strong focus on scalable system architecture โœ” Clean, maintainable, production-ready code โœ” Ability to combine AI, backend, and full-stack in one system โœ” Clear communication and fast execution โœ” Focus on business outcomes, not just technical delivery Let's connect for a quick 10โ€“15-minute video call to discuss your project in detail. Feel free to message me, I'd be happy to help and answer any questions.

  • Python
  • FastAPI
  • AI Agent Development
  • OpenAI API
  • Full-Stack Development
  • MERN Stack
  • Next.js
  • React
  • Node.js
  • RESTful API
  • SaaS Development
  • API Integration
  • AI Model Integration
  • Minimum Viable Product
  • ExpressJS
  • Django
  • AI Chatbot
  • Machine Learning
  • Back-End Development
  • Interactive Voice Response

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