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Mazen T.
$65/hr
100% Job Success
$1K+ earned
Offers consultations
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✅ “Mazen was fantastic to work with—delivered high-quality work, exceeded our expectations, and was always proactive. We’ll definitely work with him again!” – Just one of many happy clients. If you want the same level of expertise, check out my profile. 🚀 About Me Hi, I’m Mazen! I’m a Full Stack Developer specializing in mobile development with Flutter and backend development with Laravel. My goal is to help you build high-quality, maintainable, and scalable applications that drive real business value. I take pride in delivering pixel-perfect, high-performance apps with clean and efficient code, ensuring smooth user experiences and easy maintainability. 🔹 Flutter Expertise: • State Management: Riverpod, Bloc, Provider • Pixel-perfect UI implementation • Firebase Integration (Auth, Firestore, Push Notifications, Analytics, Crashlytics) • MVVM & Clean Architecture • Payment Systems: Paypal, Stripe, Razorpay, Apple Pay, Paytm, and many others • Real-Time Chat Integration (Sendbird, Intercom) • Analytics & User Tracking: MixPanel, Segment • Unit & Integration Testing • CI/CD Pipelines for seamless deployment • GraphQL & REST API Integration • Native Android & iOS SDK Integration 🔹 Backend Development (Laravel): • RESTful API Development • Authentication & Authorization (JWT, OAuth, Social Login) • Real-time WebSockets & Notifications • Database Optimization & Performance Tuning • Payment Integration (Stripe, PayPal, etc.) • Web Scraping & Data Processing • Vue.js & Livewire for Interactive Web Apps • Unit & Integration Testing • CI/CD Automation 🔹 Tools & Technologies I Work With: • Cloud Services: AWS, Google Cloud, DigitalOcean • Databases: MySQL, PostgreSQL, Firebase, MongoDB • AI & ML Integration: OpenAI ChatGPT, AI-based Features • Design & Prototyping: Figma, Adobe XD, Sketch • Project Management: JIRA, ClickUp, Trello, Slack • Version Control: GitHub, Bitbucket, GitLab 🚀 Why Work With Me? • Proactive & Solution-Oriented – I don’t just build apps; I help refine ideas and improve products. • Efficient & Reliable Remote Work – Strong experience working independently with minimal supervision. • High-Quality Code – Clean, maintainable, and scalable, ensuring long-term success. If you’re looking for a dedicated developer to bring your vision to life, send me a message—let’s build something amazing together! 🎯 Android, Native Android App Developer, iOS, iOS App Developer, Flutter, Cross-Platform Mobile Apps, Android Studio, Apple Xcode, Kotlin, Java, Swift, SwiftUI, UIKit, Core Data, MapKit, Realm, SQLite, Firebase Cloud Firestore, Realtime Database, In-app Purchases, Push Notifications, Location Services, User Authentication, User Profile Creation, Payment Gateway Integration, 3rd Party SDK Integration, Twilio, Mapbox, HealthKit, Google Analytics, Amazon Web Services, DigitalOcean, QA Testing, Unit Testing, Regression Testing, Dating App, Ecommerce App, Ride Booking App, Phone, iPad, Laravel, PHP, Web App Development, REST API Development, Admin Panel, Backend Development
Mazen T. has worked .
$100/hr
67% Job Success
$3K+ earned
Available now
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Are you looking for an experienced Fractional CTO, Technical Product Manager, or AI Solutions Architect to build high performance software without wasting thousands on bad technical architecture? I am a veteran Product Leader, Technical Architect, and the active Co-Founder & COO of an enterprise-grade AI Studio. Over the past 20+ years, I have engineered, scaled, and managed complex B2B SaaS platforms, mobile applications, and high impact digital products. My career spans strategic execution for global tech giants like Microsoft Bing and Yahoo, as well as hands on architectural leadership for startups. I specialize in bridging the gap between high level business logic and complex technical execution specifically within Generative AI, machine learning pipelines, and cost efficient offshore engineering operations. CORE AREAS OF EXPERTISE & SERVICES 1. AI Integration & Intelligent Automation • Architecting Custom Generative AI Pipelines: Designing robust enterprise systems powered by OpenAI GPT models, Anthropic Claude, Google Gemini, and open-source Large Language Models (LLMs). • AI Agents & Workflow Automation: Building autonomous multi-agent systems and custom LLM orchestration layers that seamlessly automate complex business workflows. • Retrieval-Augmented Generation (RAG): Structuring proprietary company data using vector databases for secure, context-aware AI query systems and smart chatbots. • Full-Stack AI Product Development: Creating end-to-end AI SaaS web and mobile solutions using modern tech stacks (Python, Node.js, Unity, Flutter). 2. Fractional CTO & Tech Advisory • Technical Architecture & System Design: Designing highly scalable, secure, and cost-effective cloud database infrastructures. • Tech Stack Auditing & Roadmapping: Helping founders evaluate legacy systems, select the right APIs, and draft clear technical specifications (PRDs). • Product & Monetization Strategy: Leveraging my AdTech and B2B SaaS background to design user-centric interfaces and highly profitable platform architectures. 3. Offshore Team Optimization & Agile Delivery • Engineering Audits: Helping Western companies structure, align, and optimize their developer teams for maximum sprint velocity and code quality. • Scale-Up Architecture: Utilizing my 5+ years of experience building and operating dedicated engineering teams in Pakistan to optimize your global technical operations. TECH STACK & INTEGRATIONS • AI & ML: LLM APIs (OpenAI, Claude, Gemini), LangChain, Vector Databases, Prompt Engineering, AI Agents, Prompt Workflows. • Web & Mobile: Flutter, Node.js, Unity, PHP, WordPress, Python, REST APIs. • Analytics & Data: Google Analytics, CRM Integration, KPI Tracking, Usability Testing, A/B Testing. • Legacy Tech Platforms: BrightRoll DSP, Adform, Google Ad Manager, Gemini. WHY WORK WITH ME? I don't just write code; I design systems built to scale. As an active AI Studio executive based in Sweden, I bring global market insights, technical depth, and enterprise maturity to your project. Whether you need a part-time technical co-pilot to sit in on your stakeholder calls, a strategic roadmap for your upcoming AI product, or a thorough audit of your dev team's output let's connect to discuss how we can turn your product vision into production-ready software.
Muhammad Usman A. has worked .
AdzSpec Technologies
Associated with
AdzSpec Technologies
$700+
earned
Jerome L.
$125/hr
100% Job Success
$200K+ earned
Offers consultations
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- Art Director, Graphic Designer, Technologist, Videogames Veteran - Engaging and Effective User Experience Advocate. - Speaker at USC, ID-tech, Adobe, Art Institute, etc. - UI/UX, Branding, Product Design/Development - Early Stage Startup Specialist (pitch, funding, Mvp, traction, growth etc) I've about 20 years of experience and I've worked for a variety of client and style from Disney, Rockstar games, Qualcomm, Adidas, Adobe to startups and small business.
The New Buro
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The New Buro
Andrew M.
$60/hr
$1K+ earned
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I’m a senior mobile app developer experienced in building and maintaining production iOS and cross-platform mobile applications for startups and established organizations. Whether you’re launching a new app, modernizing an existing codebase, or stabilizing a live product, I can help you ship reliably and thoughtfully. I specialize in native iOS (Swift / Storyboards or SwiftUI) and React Native development with experience delivering apps to the App Store and Google Play. I’m comfortable working in existing codebases, untangling legacy issues, and improving performance, reliability, and user experience without unnecessary rewrites. I’m product- and delivery-focused with a strong eye for UX, and I regularly collaborate with non-technical stakeholders to translate ideas into practical, shippable solutions. When needed, I can also contribute to HTML/CSS and web-based projects that support mobile products. What I bring: • Native iOS & cross-platform mobile development • App Store & Play Store delivery and maintenance • UX-minded, pragmatic engineering decisions • Full project ownership from planning to release • Clear, consistent communication throughout the project I enjoy working closely with clients to turn ideas into polished, reliable products. Feel free to reach out if you’d like to explore working together.
$65/hr
100% Job Success
Available now
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I’m a results-driven AI Engineer and Senior Mobile App Developer with 15+ years of experience building intelligent, scalable solutions across fintech, healthcare, e-commerce, and more. From AI-powered SaaS features to cross-platform mobile apps and data science pipelines, I uniquely blend deep ML/AI expertise with robust mobile development to deliver impactful, production-ready systems. 𝐀𝐈 & 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: • Custom LLM Applications (GPT, Claude, LLaMA, Mistral) • AI Agent Development using LangChain, OpenAI API, Pinecone, and FAISS • NLP Pipelines for chatbots, summarization, RAG, and entity extraction • ML Models for recommendation systems, fraud detection, time series forecasting • MLOps Workflows: Docker, FastAPI, TFX, AWS/GCP, Kubernetes 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤: Python, PyTorch, TensorFlow, Transformers, SQL, Hugging Face, FastAPI 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬: SaaS, EdTech, HealthTech, FinTech, Legal, Analytics 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: • Cross-Platform Development using Flutter and React Native • Native Android/iOS Apps built with Kotlin, Swift, SwiftUI, Objective-C • Firebase & MongoDB Integration for real-time, scalable apps • UI/UX Design tailored to maximize user engagement and app store success • Secure, High-Volume Systems (e.g., healthcare apps handling TBs of data, crash-free rates over 99.7%) Let’s build AI-powered mobile apps, intelligent platforms, and data-driven systems that perform, scale, and make a measurable impact. 📅 𝑨𝒗𝒂𝒊𝒍𝒂𝒃𝒍𝒆 𝒇𝒐𝒓 𝒄𝒐𝒏𝒔𝒖𝒍𝒕𝒂𝒕𝒊𝒐𝒏, 𝒅𝒆𝒗𝒆𝒍𝒐𝒑𝒎𝒆𝒏𝒕, 𝒂𝒏𝒅 𝒍𝒐𝒏𝒈-𝒕𝒆𝒓𝒎 𝒄𝒐𝒍𝒍𝒂𝒃𝒐𝒓𝒂𝒕𝒊𝒐𝒏. Best, Musa
Zubair A.
$75/hr
100% Job Success
$1K+ earned
Available now
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I help startups ship React Native apps that users keep not just download. 5+ years, 25+ apps live on App Store & Google Play, including Rise, Daydew, and Foreca Weather. I specialize in AI-integrated mobile apps and cross-platform launches. What I actually do: 📱 Build cross-platform iOS & Android apps with React Native, TypeScript, and Expo 🤖 Integrate AI features OpenAI APIs, LLM-powered chat, smart assistants 🚀 Ship to App Store & Google Play, including rejections and ASO ⚡ Optimize performance: cut load times, reduce bundle size, fix memory leaks 🗺 Build real-time features: GPS tracking, push notifications, offline sync Recent work I'm proud of: • Rise → Productivity app for organizing your life. React Native + TypeScript, live on iOS & Android with 4.5★+ ratings. • Daydew → Journal & diary app with emotional UX. Shipped to both stores, built with React Native + offline-first architecture. • Jeyad (جياد) → Arabic lifestyle app with full RTL support. iOS + Android, published and live. • Rivetgun.ai → AI-powered SaaS tool. React Native + OpenAI integration, full-stack delivery. • Floty.ai → Real-time fleet management platform with GPS tracking and AI dispatch. React Native + Node.js backend. • Foreca Weather Radar → High-scale weather app on iOS & Android. Performance-optimized for millions of users. My stack: React Native (New Architecture) | TypeScript | Expo | Redux Toolkit | Zustand | React Query | Node.js | Express | NestJS | Firebase | Supabase | GraphQL | WebSockets | OpenAI API | Google Maps | Push Notifications | CI/CD | EAS Build | NestJS | Firebase | AWS | AI Agent | GitHub I work best with: → Founders who need an MVP live on both stores in 3–7 weeks → Teams adding AI to an existing React Native app → Startups rebuilding a slow or crashing app Not sure if I'm the right fit? Send me your app idea or current challenges. I reply within 4 hours — no pressure, just honest feedback.
Zubair A. has worked .
Youssef H.
$85/hr
100% Job Success
Available now
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Full Stack Development / AI Agents / Claude API / MCP Servers / React / Next.js / Python / TypeScript / Node.js / Supabase / Stripe / API Integration / SaaS CTO at Keystone Musical Instruments. I lead the full technical stack, review every PR across 144K lines of C++, and make architecture calls for hardware and software products shipping to market. Before that I directed projects across 3 different countries at Acoustics Masters Group, managing remote teams and stakeholder communications. I build and ship AI-powered products, full stack, from database to deployment: - idbro.app — AI platform with streaming chat, multi-tool agent, Stripe billing, 12+ API integrations, 1,316 commits - clinicalnotes — HIPAA-compliant AI audio capture, on-device ML, system extension architecture - soundprivate — Version control for music producers: Supabase, React, Rust CLI, signed macOS desktop + mobile apps - Tribalista.— E-commerce: Next.js, multi-region, Stripe checkout AI agent infrastructure I've shipped: - OpenClaw org member, shipped plugin published on NPM - Clawd Cursor — 40-tool desktop automation MCP server (TypeScript, macOS) - REAPER MCP — 58-tool DAW control MCP server, 47 GitHub stars, published on PyPI - vst-bench — 31-tool MCP server for AI-driven plugin testing (Python + C++) Top 2% Cursor power user. MS in Data Science graduating June 2026. Thesis: novel neural audio codec (53M-param GAN, PyTorch, +42dB over Meta's DAC). I've done post-production for Emmy award-winning KitchenTV on titles from HBO, Netflix, BBC, and NBCUniversal. That background means I understand production quality, client communication, and shipping under real constraints.
$125/hr
$8K+ earned
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👋 My name is Imran and I have over a decade of experience as a software engineer and project manager. I specialize in application architecture and web editors. Now I am creating Inspo, a bio-inspired no-code AI platform for developing next generation cloud apps. ✅ Competitive UI ✅ Custom Logic ✅ Custom Integrations ✅ Fixed Price ✅ FE: React, Node.js, Vite, Docker ✅ BE: GCP, Node (express), IndexedDB, Go
Jim S.
$60/hr
100% Job Success
$300K+ earned
Available now
Offers consultations
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Top 3% on Upwork | Fortune 500 & Inc. 5000 Contractor I help consumer companies build, launch, and scale apps people actually use. With over a decade of experience building consumer-facing apps, I’ve developed products that reached App Store Top Charts, attracted tens of thousands of users, and converted free users into paying subscribers. Recent Highlights - Built an anonymous confessions app with 10,000+ posts and paid subscribers across Greece - Ranked #2 in the App Store (Social Networking, Greece) within weeks of launch - Scaled survey app panel to 250k+ panelists - Created an AI creative app that generates background scenes for ecommerce products - Reduced chargebacks by 40% via a custom fraud prevention platform What I Do Best - 📱 Consumer App Development - React Native + Expo for high-performance iOS/Android apps - Supabase and custom backends (Python/Django, Node.js, Go) - In-app purchases, subscriptions, notifications, analytics integrations - Growth systems: referrals, gamification, virality loops ------------------ - 📈 Growth & Retention Systems - Optimized onboarding, paywalls, and funnels - Event tracking with Branch, AppsFlyer, Amplitude, Mixpanel - A/B testing, behavioral cohorts, and retention-focused iteration ------------------ - ⚙️ Scalable Platform Architecture - REST APIs & microservices for consumer apps - Supabase + Postgres + AWS/Vercel stack design - Real-time features, moderation systems, and internal tools Why Clients Choose Me ✅ Serial Tech Founder: Built and scaled 15+ startups, I understand product-market fit, not just code ✅ Growth-Oriented: Every feature I ship ties back to activation, retention, or monetization ✅ Consumer Expertise: I know what keeps users coming back and paying ✅ Full Lifecycle Ownership: From MVP to 100K+ users, including infrastructure and analytics If you’re building a consumer app, social product, or creative AI tool, I can help you go from idea to traction, fast!
Jim S. has worked .
$150/hr
100% Job Success
$700K+ earned
Available now
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As a senior software engineer and architect, I have over 25 years experience partnering with businesses to transform their ideas into functional software products. I excel at software engineering, software architecture design and planning, leading development teams, writing technical specifications, and designing user interfaces and experiences. My work spans development of both enterprise and consumer applications with a focus on artificial intelligence, e-commerce and online payments, iOS and Android applications, API integrations, hardware integrations, server administration, automations, content management, web development, and SEO - all with an emphasis on exceptional design. I understand the importance of striking a balance between timeline, budget and feature set when designing and phasing a project, ensuring it works realistically within a business’ constraints. My communication style is clear, concise and transparent. When you hire me, you gain a team player that takes full ownership of his assignments and is guided by a relentless work ethic. I am proactive in looking ahead for potential issues and opportunities, and provide these insights as continuous feedback to stakeholders. While I am eager to discuss projects both large and small, simple and complex, covering a wide range of disciplines, below is a list of areas where I have deep expertise: Artificial Intelligence Extensive experience implementing AI technologies, including custom AI agents, conversational chatbots, recommendation engines, automated decision-making, predictive analytics, personalized user interactions, and content analysis/generation. Skilled in prompt engineering, model fine-tuning, and building hybrid systems combining multiple AI models with traditional software components. Proficient in integrating frontier models from OpenAI, Anthropic, Google, and Meta. I maintain expert knowledge of current and forthcoming offerings, enabling me to guide clients in selecting services that deliver optimal output at economical costs. API Integration Deep expertise building secure, efficient, and well-documented API integrations, including RESTful, GraphQL, legacy services (SOAP, XML-RPC), OAuth and other authentication protocols, and real-time data synchronization. My integration experience includes: Stripe, Plaid, Square, Twilio, SendGrid, Slack, Google/Bing/Meta Ads, Salesforce, HubSpot, Pipedrive, Google Docs/Sheets/Drive, Klaviyo, Mailchimp, Hootsuite, Monday.com, Quickbase, Teamwork, Asana, Quickbooks, NetSuite, Zendesk, Freshdesk, Intercom, DocuSign, Google Analytics, Mixpanel, Segment, Google Maps, Mapbox, and more. DevOps and Server Administration Twenty years experience in setup, migration, and maintenance of Unix/Linux hosting environments, including 15 years managing AWS infrastructure as well as Azure, Google Cloud, Heroku, Cloudflare, and others. Skilled in optimizing performance, ensuring availability, load balancing, security hardening, automated deployments, monitoring and alerting systems, and maintenance automation. Thrives during emergency situations and catastrophic failures under extreme pressure. E-commerce I’ve developed custom e-commerce offerings that have processed over a billion dollars in transactions. Functionality has included payment processing integrations, bi-directional third-party inventory management and POS integrations, fulfillment pipelines, subscription services, and high volume architectures processing thousands of orders per minute. Android & iOS Development Ten years of experience building native and non-native Android & iOS apps and supporting API suites with hundreds of App Store and Google Play submissions. Feature sets include e-commerce, push notifications, user authentication, location services, deep linking, barcode scanning, and Bluetooth low energy (BLE) beacons. Cannabis Tech Fourteen years experience developing software for cannabis dispensaries and MSOs, including online ordering, in-store kiosks, in-store TV menus, and Android/iOS apps. Expert knowledge integrating with cannabis POS platforms and APIs, including Dutchie POS (formerly LeafLogix) and Dutchie Plus, Jane POS and Jane Roots, Treez, BioTrack, Greenbits, Blaze, Flowhub and MJ Platform, as well as delivery logistics platforms like Onfleet and Detrack. Subject matter expert on Android and iOS apps for dispensaries, having submitted more dispensary apps than any other developer in the world. Fractional CTO & Consulting Apart from software development, I also offer fractional CTO services as well as consultation services to businesses during the idea conception, planning, and pre-production phases of their software projects. This can include product design, strategic planning, technical feasibility analysis, market research, risk assessment, budgeting and cost estimation, project scoping, workflow design, team structure and roles, RFP creation and management, and vendor selection and staffing.
Nick M. has worked .