Hire the Best AppFuse Specialists

I run Amigda Labs, where I help businesses use AI to work smarter. Whether it's automating repetitive tasks, improving marketing, or building custom AI systems, my focus is always on creating solutions that make a real difference to the business. Alongside running Amigda Labs, I'm an AI Engineering Lead at Novare, where I work on enterprise-scale AI initiatives and help build production-ready AI solutions for large organizations. That gives me experience delivering systems that are not only technically sound but also practical for real business environments. I don't just build AI models. I design end-to-end solutions that simplify operations, reduce manual work, and help businesses grow more efficiently. Here's what I can help with: - AI automation for business operations and internal workflows - AI agents and multi-agent systems using the OpenAI Agents SDK, ADK, and LangGraph - Custom AI assistants, chatbots, and knowledge bases (RAG) - Process automation and system integrations - AI-powered dashboards and business intelligence - Marketing automation, lead generation, and customer engagement - FastAPI backends, API integrations, cloud infrastructure, and production deployments - AI strategy, solution architecture, and technical consulting My approach is simple: understand the business first, then choose the right technology. AI isn't always the answer. Sometimes a better workflow or a well-designed automation creates more value than adding another AI model. I focus on finding the most practical solution that saves time, reduces costs, and helps businesses scale. Whether you're building your first AI solution or looking to improve an existing one, I'd be happy to discuss your project and explore what makes the most sense for your business. 🔧 EXPERTISE: AI Automation | AI Agents | Multi-Agent Systems | OpenAI Agents SDK | LangGraph | Google ADK | RAG | Chatbot Development | LLM Integration | ChatGPT API | Claude API | Prompt Engineering | Workflow Automation | Business Process Automation | API Integration | FastAPI | Python | Backend Development | Cloud Deployment | Supabase | Vector Databases | AI Dashboards | Business Intelligence | Marketing Automation | Lead Generation | AI Strategy | Solution Architecture

Struggling to grow your SaaS product? I turn launches into traction and traffic into paying users. With 300+ successful Product Hunt launches, $50K+ revenue generated through AppSumo, and proven Reddit growth campaigns, I help SaaS founders scale efficiently... from pre-launch strategy to post-launch growth and community engagement. Why Clients Choose Me Proven systems, not guesswork Full-funnel growth execution Hands-on leadership for launches and campaigns Expertise in SEO, reviews, and community-driven traffic What I Deliver ✅ Get featured on Product Hunt (50+ times) ✅ Plan & manage AppSumo lifetime deals that convert ✅ Run Reddit marketing campaigns that feel organic and build trust ✅ Optimize G2, Capterra, and Trustpilot reputation ✅ Drive SEO traffic & backlinks with smart content ✅ Plan & execute launch emails, PR, and LinkedIn campaigns Core Skills Product Hunt Launch Strategy AppSumo Campaign Planning Reddit Growth & Community Marketing SaaS SEO & Link Building Review Site Reputation Management (G2, Capterra, Trustpilot) Email Marketing & Automation Copywriting (Landing Pages, Launch Sequences) Notion, Asana, Slack, Calendly, Zapier, WordPress Why Clients Trust Me 10+ years of SaaS marketing experience 300+ launches, $50K+ revenue on AppSumo 50+ 5-star reviews and long-term relationships Fast, clear communication & proactive execution Recent Projects NotCommon – Relaunched & got Product of the Day on PH StepsInvesting – Unique health + wealth SaaS, launched & positioned ZeroTrusted.ai – SEO + review strategy across G2 & Capterra Podial – Pre-launch growth & PH prep for an AI podcast tool Biela.dev – Planned 100K+ reach Reddit campaigns to build awareness Let’s make your SaaS the next success story. Drop me a message, I’ll show you exactly how we can grow together.

Author of Backend by Proxy for Mobile Developers, I've worked with startups and growth-stage companies to design, build, and ship high-performance Android and cross-platform applications used by thousands of users. My expertise spans solutions with Kotlin Multiplatform, Compose Multiplatform, backend integration, offline-first architectures, real-time systems, payments, and modern CI/CD pipelines. I am the creator and maintainer of Subscribio, the free subscriber management application designed to help workspaces and subscriber-based businesses scale and manage their user base seamlessly. 🟢 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝗸𝗶𝗹𝗹𝘀 Multiplatform & Native Architecture: Expert in Kotlin Multiplatform (KMP) and Compose Multiplatform (CMP) for shared business logic and unified UI across Android & iOS. High proficiency in standard Android architecture components (MVVM/MVI, Jetpack Compose, Coroutines, and Flows). Backend Integration & Real-Time Data: Deep experience integrating RESTful APIs and real-time synchronization pipelines. Advanced proficiency with Firebase and Supabase ecosystems (Authentication, Firestore/Real-time DB, Cloud Functions). Payment & Lifecycle Management: Integrating secure gateways (Stripe, PayPal, Paystack), handling complex in-app purchases (IAP), and architecting scalable subscription models and user management systems. Location & Hardware Services: Advanced implementation of Google Maps, location-based services, and geofencing. Testing & Quality Assurance: including Unit (JUnit/MockK), UI/Component, and Integration testing leveraging CI/CD pipelines to enforce strict code coverage benchmarks and ensure flawless, production-ready deployments. Core Language & Tools Command: Kotlin, Java Data & Backend: SQLite, SQL, JSON dataset manipulation Web & Scripting: JavaScript, HTML5, CSS3 VCS: Git/GitHub Git workflows Cloud & Push Notifications: Seamless integration of cloud messaging platforms (FCM) and background notification workers. 🟢 𝗦𝗼𝗳𝘁 𝗦𝗸𝗶𝗹𝗹𝘀 Analytical Problem-Solving: Sharp capability to architect performance-driven solutions for complex, large-scale consumer applications. Technical Writing & Documentation: Strong commitment to professional documentation practices, writing clear technical specifications, and API documentation. Business Alignment: Ability to translate high-level business requirements and brand architectures into concrete technical implementations. Collaborative Leadership: Proactive team player with experience mentoring internal peers, leading code reviews, and working effectively with cross-functional stakeholders. 🟢 𝗥𝗼𝗹𝗲𝘀 𝗮𝗻𝗱 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀 End-to-End Product Ownership: Design, develop, test, and deploy robust mobile applications across the Android and iOS ecosystems using KMP/CMP. Cross-Functional Collaboration: Partner closely with UI/UX designers, QA teams, and stakeholders to deliver high-fidelity, user-friendly digital products. Component Standardization: Architect and maintain highly reusable UI components and libraries to ensure rapid, scalable product development. Legacy Maintenance & Optimization: Specialized in auditing and maintaining legacy mobile codebases; enforces clean code practices, eliminates memory leaks, and systematically refactors technical debt into modern alternatives.

Experienced AI & Low-Code developer. I build production automation systems and mobile apps that actually ship — not prototypes. Two focus areas: AI automation (n8n): I design workflows that connect LLMs (OpenAI, Claude, Gemini) to real business processes — content generation pipelines, lead qualification and routing, document/image analysis, and multi-platform publishing. I build with structured JSON outputs, error handling, and retry logic by default, and I bake human review gates into the parts that matter (compliance, brand approval, anything that shouldn't auto-publish on a hallucination) rather than chasing full automation for its own sake. FlutterFlow app development: production iOS/Android apps with Firebase backend, RevenueCat subscriptions, and third-party API integrations — taken from spec through App Store/Play Store launch, not just prototyped. Selected experience: - Built and launched multiple production FlutterFlow apps on the App Store and Google Play, including one with OpenAI-powered personalization features - Designed n8n pipelines combining LLM-based classification/extraction, structured data storage (Airtable/Postgres/Supabase), and automated multi-step workflows for content, recruitment, and outreach use cases - Participated in building one of the biggest Adalo apps — MyLabourBase - Contributed to the fast-growing startup TimeLeft Tech stack: n8n, OpenAI / Claude / Gemini, FlutterFlow, Firebase, Supabase, Airtable, PostgreSQL, RevenueCat, Docker, Xano, Make, Google Cloud, AWS. I'm direct about scope and honest about what a system can and can't reliably do — you'll get a realistic estimate, not an oversold one. Let's talk about what you're trying to build.

I help iOS & Android apps grow—from store discovery to in-app activation. My specialty is Paid Media for Mobile Apps powered by ASO, Answer Engine Optimization (AEO), Generative Engine Optimization (GEO), and SEO so every dollar spent on Apple Search Ads, Google App Campaigns, Meta, TikTok, and YouTube compounds with organic discoverability. I also build social media systems for apps that convert attention into installs and engaged users. Core Skills (Mobile-App First) ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ ✔️ ASO + ASA Synergy: Keyword research, metadata testing, creative sets, CPPs/CRPs, and ASA intent capture to lift CVR and cut CPI. ✔️ Search Engine Marketing for Apps: Google App Campaigns (Install/Action/Value), deep link routing, Firebase events, UAC creative feeds. ✔️ Paid Social for Apps: Meta, TikTok, Snapchat & YouTube—audience architecture, creative iteration, and SKAN-friendly optimization. ✔️ AEO & GEO: Structure content and store pages for answers and AI summaries (Perplexity, Gemini, ChatGPT, Bing Copilot), plus optimized snippets that feed generative overviews and app packs—bridging SEO with emerging AI-discovery. ✔️ SEO for App Brands: Site architecture, app landing pages, schema, web-to-app journeys, Smart Banners/Deferred Deep Links. ✔️ Measurement & Privacy: SKAdNetwork strategies (postback mapping, lockWindow), ATT prompts, MMP setup (AppsFlyer/Adjust/Branch), MMM basics. ✔️ Lifecycle & Monetization: Onboarding flows, push/in-app messaging hooks, event mapping for AEO/Value optimization, subscriptions & IAPs. ✔️ Social Media for Mobile Apps (Organic): Playbook for short-form video, UGC pipelines, community loops, and pre/post-launch calendars. Tools Expertise ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ ✔️ Ad Platforms: Apple Search Ads, Google Ads (UAC), Meta, TikTok, Snapchat, YouTube. ✔️ MMPs & Analytics: AppsFlyer, Adjust, Branch, Firebase/GA4, Data Studio/Looker, Amplitude/Mixpanel. ✔️ ASO Suites: AppTweak, AppFollow, Sensor Tower, data.ai. ✔️ SEO/AEO/GEO: Google Search Console, Screaming Frog, schema.org, Surfer/Frase, programmatic snippets. ✔️ Creative Stack: Canva/Figma, Motion templates, UGC briefing frameworks, product shot automation. ✔️ Automation: Bulk sheets, API-based reporting, alerts, creative testing matrices. Key Achievements (Representative Outcomes) ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ ✔️ Reduced CPI and lifted store CVR by pairing keyword-led ASA with metadata/creative tests in ASO. ✔️ Scaled Google App Campaigns from install to in-app action/value objectives using event prioritization and creative feed expansion. ✔️ Built AEO/GEO content hubs that earned “quick answers” and generative summaries, increasing non-branded app traffic and store visits. ✔️ Launched UGC + short-form video systems for apps, improving install-to-open rates and lowering first-purchase CAC. ✔️ Implemented SKAN-friendly campaign structures and MMP mappings to stabilize optimization under privacy constraints. Approach to Collaboration ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ ✔️ Discovery & Audit: ASO + paid + analytics baseline; surface constraints (tracking, creatives, SKAN setup). ✔️ North-Star Metrics: Agree on CPI, IPM, CVR, ROAS/Payback, or AEO/Value goals; define guardrails. ✔️ Plan & Sprint: Two-week sprints—ASO experiments, creative batch tests, bid/budget ladders, audience frameworks. ✔️ Measure & Learn: Weekly readouts with clear deltas, next hypotheses, and creative briefs; build a learnings log. ✔️ Scale & Compound: Shift budget to winners, broaden GEOs/placements, and reinforce with AEO/GEO/SEO & social proof. Vision for Growth ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ Discovery is converging: ad platforms + stores + search + AI answers. I design growth systems where Paid Media for Mobile Apps drives momentum while ASO, AEO, GEO, and SEO amplify it—and social media keeps the flywheel spinning with content that your users actually share. Let’s Talk & Collaborate ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ Launching a new app and need an end-to-end growth plan? Struggling with SKAN measurement or creative fatigue? Want your app to surface in generative answers and AI overviews—not just traditional search? Send me a message with your app store links (iOS/Android), current KPIs (CPI, CVR, IPM, ROAS/Payback), markets, and monthly budget. I’ll outline a pragmatic, testable plan you can act on immediately.

My portfolio: vietleh.vercel.app Senior Mobile Specialist | Flutter & Full-stack Expert | Agentic AI & LLM Integrator Hi there! I don’t just write code; I build intelligent, scalable products that drive real business ROI. With 6+ years of experience and currently serving as a Mobile Team Leader, I’ve led complex projects in Healthcare, Banking, and E-commerce. I specialize in bridging the gap between high-performance mobile interfaces and powerful backend systems, now enhanced with Agentic AI capabilities. Why work with me? AI-Driven Solutions: I don’t just "call an API." I build Agentic AI workflows using LLMs (OpenAI, Claude, Llama) to create apps that can reason, automate tasks, and provide personalized user experiences. Strategic Thinking: I help elaborate and expand your ideas, ensuring the final product isn't just functional but market-ready and future-proof. Full-stack Mastery: Expert in Flutter (my core strength), KMP (Kotlint Multi-platform), React Native, and robust backends (Node.js, Java Spring Boot, Python). Security & Scale: Extensive experience in Banking-grade security, Payment Gateways (Stripe, PayPal, IAP), and Cloud Infrastructure (GCP, AWS). Management Mindset: As a Team Lead, I prioritize clean architecture, strict deadlines, and transparent communication. My Tech Stack: - AI & Agents: ADK, Claude Agent SDK, OpenAI API, Agentic Workflows, Vector Databases. - Mobile: Flutter, Kotlin Multi-Platform, React Native. - Backend: Node.js, Java Spring Boot, Next.js, Python. - Other: N8N, FlutterFlow I’m a graduate of Ho Chi Minh University of Science (HCMUS). My goal is simple: deliver top-tier quality and build a long-term partnership with your business. Ready to build the next generation of AI-powered apps? Let’s chat!