FastAPI backend engineer and AI agent builder with 5+ years of production experience: Python, n8n, LangChain, RAG, and LLM-powered automation systems that actually ship, not prototypes that break under real use. Recent production work: MarbleBee: AI voice agent platform for a wholesale/DTC business. Twilio for calls, OpenAI for reasoning, RAG-based knowledge retrieval, and ~20 interconnected n8n workflows handling everything from lead classification to Shopify/Etsy product sync and Pinterest publishing. AskVideo: AI video Q&A platform. FastAPI backend, ChromaDB vector search, LangChain orchestration. Users ask questions about video content and get answers with source citations, not guesses. Chatpaper: document Q&A system with hybrid retrieval (dense + BM25 + reciprocal rank fusion), multi-format file support (PDF, Word, Excel), and citation tracking back to source. ALE: enterprise healthcare operations platform. Multi-tenant SaaS, JWT auth, RBAC across three role tiers, RabbitMQ-driven async workers, 35+ REST endpoints, deployed on AWS with CI/CD. What I build: Agentic AI Systems - AI agents with tool-calling, memory, and multi-step reasoning (LangChain, LangGraph) - RAG pipelines with hybrid search (ChromaDB, Pinecone) - Voice and conversational AI with real-time processing Backend & Automation - FastAPI/Django backends: REST APIs, JWT auth, RBAC, async task processing (Celery, RabbitMQ) - n8n workflow automation: webhook-driven integrations, CRM/lead pipelines, third-party API connectors - PostgreSQL/Supabase data models, Docker deployment, AWS infrastructure Core stack: Python · FastAPI · LangChain · LangGraph · OpenAI · Anthropic Claude · n8n · PostgreSQL · Redis · ChromaDB · Docker · AWS · Supabase · Celery · RabbitMQ Anthropic-certified (Claude API, prompt engineering): most AI freelancers on here are OpenAI-only. Also searched as: FastAPI developer, LangChain engineer, LangGraph developer, AI agent developer, n8n developer, RAG developer, agentic AI engineer, Python automation engineer, OpenAI integration developer, AI workflow automation engineer, backend API developer, LLM application developer, Python backend engineer, multi-agent system developer, n8n automation specialist, LangChain RAG developer, FastAPI backend developer, AI agent builder.

Hi, I’m Aarti, a Web Development & Digital Growth Specialist with 15+ years of experience helping businesses build high-performing websites, improve online visibility, and generate qualified leads. I have worked with international brands including Global Yellow Pages Singapore and iProperty Singapore, as well as businesses across multiple industries. Web Development & Design: == WordPress – Elementor, Divi, WooCommerce == Webflow, Wix & Squarespace == Laravel & Custom Full-Stack Development == Custom website design and redesign == Figma to WordPress/Webflow == Landing pages and lead-generation websites == E-commerce development == Responsive and mobile-first development == Website speed and performance optimization SEO & Digital Marketing: == Technical, On-Page & Local SEO == Keyword and competitor research == SEO audits and website migrations == Content and SEO strategy == Google Search Console & GA4 == Google Ads & PPC == Meta/Facebook Ads == Conversion Rate Optimization (CRO) == Lead generation and marketing funnels UI/UX & Graphic Design: == Website UI/UX design == Figma design and prototypes == Landing page design == Marketing banners and graphics == Social media creatives == Promotional materials Why Clients Choose Me: == 15+ years of hands-on industry experience == Experience working with international companies and brands == Development and SEO expertise in one place == Strong focus on performance, usability, and conversions == Experience improving existing websites as well as building new ones == Clean, responsive, SEO-friendly development == Clear communication and reliable project delivery == Available for both one-time projects and ongoing support Whether you need a WordPress, Webflow, Wix, Squarespace, or Laravel website, a redesign, SEO campaign, Google Ads, landing page, or complete digital growth solution, I can help take the project from strategy through implementation and optimization. Regards, Aarti

🎖As a Microsoft Partner · Data Architect & Senior Data Engineer · I build Enterprise Data Platforms & Reporting Systems in which every Power BI Dashboard is backed by a well-structured Database · reliable ETL Pipeline · robust Data Modeling & practical Data Analysis 👨🏻‍💻As a Data Analyst & Data Engineering specialist I help companies turn scattered data into trusted reporting systems using: Azure DevOps · Snowflake · Microsoft Power BI · Microsoft Azure SQL · Database · Microsoft SQL Server · Azure Data Factory · Databricks Platform · modern Data Warehousing architecture My core focus is simple: Azure DevOps for reliable delivery Power BI Dashboard systems for executive reporting Database architecture for real scale Snowflake for scalable Data Warehousing ETL Pipeline automation for stable data flow Data Analyst thinking behind every business metric I usually help when data is spread across: SQL Server Microsoft Azure SQL Database PostgreSQL MySQL NoSQL APIs ERP systems Excel files Google Sheets Snowflake Azure Data Factory Azure Data Platform Azure Databricks Databricks Platform dbt data build tool workflows I design the full path from raw data to business reporting: Data source to ETL Pipeline to Database to Data Warehousing to Data Modeling to Data Analysis to Power BI Dashboard to Data Visualization For Azure projects I use Azure DevOps · Azure Data Factory · Git · Terraform · CI/CD · DataOps · structured deployment workflows to make Data Engineering predictable. Azure DevOps is especially useful when your ETL Pipeline needs version control · automated releases · environment separation & stable deployment For Snowflake projects I design Snowflake Database architecture · Snowflake Data Warehousing · Snowflake cost optimization · dbt data build tool workflows · Database layers · Data Integration logic & reporting-ready Data Modeling. A Snowflake system should not just store data. It should make every Dashboard faster · cleaner & easier to trust For Power BI projects I work across the full lifecycle: requirements Database audit ETL Pipeline logic Data Modeling DAX KPI Scorecards KPI Dashboards Dashboard Design Microsoft Power BI reporting Microsoft Power BI Data Visualization Power BI Developer support Power BI Expert consulting Power Bi Report Builder A recent Azure Data Architect project included ADF ingestion workflows + incremental & full-load pipelines + reusable templates + logging + scheduling + error handling + schema drift handling & bronze layer reliability. That is the type of practical Data Engineering foundation I build before dashboards are created I can help with: ▪ Azure DevOps workflows for CI/CD · Git · Terraform · DataOps & controlled data releases ▪ ETL Pipeline and ETL Pipelines architecture with Azure Data Factory · SQL · Python · APIs & dbt ▪ Snowflake Database architecture · Snowflake Developer tasks & Snowflake Data Warehousing ▪ Microsoft Azure SQL Database · Microsoft SQL Server · SQL Database · SQL Server · PostgreSQL ▪ MySQL & NoSQL optimization ▪ Databricks Platform & Azure Databricks workflows for scalable processing ▪ Data Modeling with star schema · DAX · semantic models · KPI logic & Database reconciliation ▪ Microsoft Power BI Dashboard development for finance · healthcare · sales · SaaS · ecommerce & operations ▪ Data Visualization · Dashboard Design · Looker Studio · Tableau Dashboard migration & Excel Dashboard migration ▪ Business Intelligence · KPI Dashboard · KPI Scorecards · Automated Reporting & Reporting Tool setup ▪ Python automation · Python Data Analysis · Data Science · Machine Learning · Statistics Data Analysis · Data Analytics & MLOps-ready reporting If your Database is slow I optimize the structure If your ETL Pipeline is unstable I redesign the workflow If your Snowflake warehouse is expensive I review the architecture If your Power BI Dashboard is beautiful but unreliable I rebuild the Data Modeling layer If your reporting still lives in Excel Dashboard files I migrate it into a scalable Power BI Dashboard & Database setup If your team needs: Database Architect Azure Data Engineer Data Engineer Data Analyst Power BI Developer Snowflake Architect Business Intelligence specialist I can help define the right technical path before development starts I'm not just a Power BI developer. I work as a Data Analyst · Data Engineer & Data Architect who understands how raw data becomes business value I also help teams with: Data Quality Data Governance Data Cleaning SQL Reporting Power BI Reporting Database Documentation KPI logic stakeholder-ready dashboards Send me your current reporting problem & I will show you how I would structure: Azure DevOps workflow Snowflake Database ETL Pipeline Data Modeling Microsoft Azure SQL Database layer Power BI Dashboard ⭐⭐⭐⭐⭐ 🏆Wait, you’ve actually made it to the very end! I highly value your attention. As a reward, I’ll grant you a discount. Just mention "1 in 100" in your first DM

⚡Let's turn your Shopify store into a higher-converting, better-performing eCommerce business. ✅I’m a Shopify Expert, Shopify Developer, CRO Specialist, and eCommerce Growth Consultant with 8+ years of experience helping Shopify stores, DTC brands, eCommerce businesses, and online stores improve their design, user experience, conversion rate, customer retention, SEO, tracking, and overall revenue. I’ve completed 60+ projects and 3,600+ hours on Upwork, with a 100% Job Success Score, Top Rated Plus status, and 4.9★ client rating. 🛍️ SHOPIFY DESIGN & DEVELOPMENT • Shopify Expert • Shopify Developer • Shopify Designer • Shopify 2.0 📈 CONVERSION RATE OPTIMIZATION (CRO) I help Shopify and eCommerce brands turn more visitors into customers through Conversion Rate Optimization, UX optimization, and data-driven store improvements. • Shopify CRO • eCommerce CRO • Conversion Rate Optimization • Conversion Optimization 📧 KLAVIYO & EMAIL MARKETING I build automated Klaviyo email marketing flows designed to increase customer retention, repeat purchases, and customer lifetime value. • Klaviyo Expert • Klaviyo Setup • Klaviyo Email Marketing • Klaviyo Flows 🔎 SHOPIFY SEO & ECOMMERCE SEO I help Shopify stores improve organic visibility, search rankings, technical SEO, and Google traffic. • Shopify SEO • eCommerce SEO • Technical SEO • On-Page SEO • Product SEO 📊 GOOGLE ADS & META ADS • Google Ads • Google Shopping • Performance Max • PMax • Search Ads • Shopping Campaigns • Google Merchant Center 📊 ANALYTICS & TRACKING • Google Analytics • GA4 Setup • GA4 Audit • Google Tag Manager • GTM Setup • Meta Pixel Setup • Facebook Pixel If you're looking for a Shopify Expert, Shopify Developer, Shopify CRO Specialist, eCommerce SEO Expert, Klaviyo Expert, or eCommerce Growth Consultant, I'm ready to help. #Shopify #ShopifyExpert #ShopifyDeveloper #ShopifyDesigner #ShopifyDevelopment #Shopify2 #ShopifyCRO #CRO #ConversionRateOptimization #eCommerce #eCommerceExpert #eCommerceDevelopment #eCommerceCRO #DTC #ShopifySEO #eCommerceSEO #SEO #TechnicalSEO #Klaviyo #KlaviyoExpert #EmailMarketing #EmailAutomation #GoogleAds #GoogleShopping #PerformanceMax #MetaAds #FacebookAds #InstagramAds #GA4 #GoogleTagManager #GTM #ConversionTracking #GoogleMerchantCenter #ShopifyLiquid #ShopifyTheme #ShopifyRedesign #UIUX #UXDesign #FigmaToShopify #LandingPage #ProductPageOptimization #MobileOptimization #AOV #CustomerRetention #RetentionMarketing #Upsell #CrossSell #ProductBundles #EmailMarketing #DigitalMarketing

🏆 Top-Rated Plus expert (Top 1%) 🍀 Digital Product Design & Development Partner of Startups, Founders, and Businesses 🚀 I create designs for SaaS, Fintech, Web3, AI, E-Commerce, Edtech, Fitness & Wellness, Healthcare, etc. DESIGN SKILLS: 🔹 UI/UX Design 🔹 Web Design 🔹 Web Application Design 🔹 Mobile Application Design 🔹 iOS App Design 🔹 Android App Design 🔹 Prototypes 🔹 Wireframes 🔹 Logo Design 🔹 SaaS and CRM Software Design 🔹 Interaction Design 🔹 Product Design TOOLS I USE: 🛠️ Figma, FigJam, Webflow, Spline, Jitter STACK & TECHNOLOGIES: 🔹 FRONT END: React, Next.js, React Native, HTML5, CSS3, JavaScript (ES6+), Redux, Redux Saga, Redux Thunk, Bootstrap, Material-UI, Ant Design, Tailwind, TypeScript, ShadCn, Socket.io, Sass (Scss), Chrome Extensions, Three.js, Recharts.js 🔹 BACK END: RESTful APIs, GraphQL, AI Integrations, Docker, Node.js, Express.js, Nest.js, Mongoose, .NET, Python 🔹 DATABASE: PostgreSQL, MySQL, SQLite, MongoDB, Redis, Firebase, Supabase 🔹 APIs: REST API, GraphQL 🔹 HOSTING: AWS, Microsoft Azure, Google Cloud Platform (GCP) WORDPRESS STACK: 🔶 Page Builders: Elementor, Elementor Pro, WPBakery, others 🔶 Other: WooCommerce, REST API, Custom Theme Development, Custom Plugin Development, SEO Optimization, Google PageSpeed My mission is to support entrepreneurs by transforming their visions into reality — through strategic planning, cutting-edge user experience, and continuous delivery of high-quality design.

React Native & AI Mobile Engineer with 10+ years of experience building scalable SaaS products, AI-powered mobile applications, and high-performance cross-platform apps for iOS and Android used by real businesses and paying customers. I specialize in React Native, Expo, Node.js, Express.js, NestJS, MongoDB, PostgreSQL, JavaScript, and TypeScript, delivering end-to-end mobile solutions from architecture and backend APIs to polished, production-ready mobile experiences. I also help businesses integrate AI-powered features using OpenAI, Claude, AI Agents, RAG, MCP, and intelligent workflow automation. I’m Top Rated Plus on Upwork with 32,000+ hours, 340+ completed projects, and a proven track record of building long-term partnerships through quality work, clear communication, and reliable delivery. 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗛𝗶𝗿𝗲 𝗠𝗲: • Senior React Native & Full-Stack Mobile expertise across AI, SaaS, FinTech, EdTech, Healthcare, CRM & ERP. • AI-first mobile development with OpenAI, Claude, AI Agents, RAG & automation workflows. • Native-quality performance with clean, scalable, and maintainable architecture. • Reliable communication, proactive problem-solving, and on-time delivery. 𝗖𝗼𝗿𝗲 𝗠𝗼𝗯𝗶𝗹𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: React Native Development • React Native, Expo & React Native CLI • JavaScript, TypeScript • Redux Toolkit, Zustand & Context API • Responsive UI, Native Animations & Custom Components • Push Notifications, Deep Linking & Offline-First Apps Backend (Node.js) • Node.js, Express.js, NestJS • REST APIs, GraphQL APIs & WebSockets • Authentication, RBAC & Multi-tenant Architecture • Background Jobs, Queues & Event-driven Systems Database & Cloud • MongoDB, PostgreSQL, MySQL, Redis • Firebase (Authentication, Firestore, FCM, Analytics) • AWS, Docker, GitHub Actions & CI/CD • Performance Optimization & Scalable Architecture 𝗔𝗜, 𝗦𝗮𝗮𝗦 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: • AI Integrations (OpenAI, GPT, Claude, LangChain) • AI Agents, MCP, RAG & Intelligent Automation • AI Chatbots, Voice AI & Workflow Automation • SaaS Platforms, Subscription Systems & Billing 𝗠𝗼𝗯𝗶𝗹𝗲 𝗙𝗲𝗮𝘁𝘂𝗿𝗲𝘀 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: • App Store & Google Play Deployment • Stripe, RevenueCat & In-App Purchases • Maps, GPS, BLE, Camera & Location Services • Real-time Chat, Notifications & Live Tracking • Secure Storage, Biometrics & Offline Data Sync 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜’𝘃𝗲 𝗪𝗼𝗿𝗸𝗲𝗱 𝗜𝗻: • AI & SaaS Products • FinTech & EdTech • Healthcare & Medical Platforms • CRM & ERP Systems • Logistics & On-Demand Platforms • eCommerce & Marketplaces • Real Estate & Enterprise Applications 𝗔𝘃𝗮𝗶𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆: • Available for Full-time & Long-term Projects • Direct Communication (No Agency / No Subcontracting) • Comfortable with Technical Interviews, Agile Sprints & Regular Standups 𝗟𝗲𝘁’𝘀 𝗕𝘂𝗶𝗹𝗱 𝗦𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗚𝗿𝗲𝗮𝘁 Whether you’re building an AI-powered mobile app, launching a cross-platform SaaS product, scaling an existing React Native application, or integrating intelligent AI features into your mobile experience, I can help you design, build, and launch a secure, scalable solution. Send me an invite, and I’ll review your requirements and recommend the best technical approach.

I help businesses fix broken Salesforce orgs and build automations that actually work, 7x certified Salesforce Developer & Architect with $70K+ delivered on Upwork at 100% Job Success. Whether your org is drowning in legacy Process Builders, your integrations keep breaking, or your team has given up on Salesforce and gone back to spreadsheets, I’ve seen it, fixed it, and built systems that stick. What I Do ▸ Sales Cloud & Service Cloud - implementation, optimization, and admin support ▸ Apex Development & LWC - custom triggers, batch jobs, Lightning Web Components ▸ Flow Automation - Process Builder migration, scheduled flows, approval processes ▸ Integrations - REST/SOAP APIs, MuleSoft, QuickBooks, HubSpot, Google Calendar, Stripe ▸ Data - migration, cleanup, deduplication, reporting & dashboards ▸ Experience Cloud - custom portals, user management, payment integrations Recent Wins ▸ Ran a 187-hour fractional Salesforce Admin engagement - user provisioning, integration architecture, data flow (5-star review) ▸ Built a license expiry notification system using Salesforce Flow for a healthcare org - automated credential tracking across hundreds of clinicians ▸ Designed a 3-layer Salesforce integration (TitanX + Salesloft) for a 60 person sales team - 2x to 4x connect rate improvement ▸ Architected a legal case management platform on Salesforce Lightning with CloudFiles integration and custom LWC Certifications 7x Salesforce Certified: Admin, Platform App Builder, Platform Developer I, Sales Cloud, Service Cloud, and more. Why Clients Stay ▸ 100% Job Success Score | Top Rated Plus | 1,400+ hours delivered ▸ Fortune 500 and SMB experience across healthcare, legal, fintech, and construction ▸ Direct communication, you talk to me, not a junior ▸ Fast response, plain English, no fluff Currently taking on 1 to 2 new Salesforce projects. Send a message, and I’ll respond within an hour with a clear approach.

A brand isn't just a logo. It's the system that makes every touchpoint feel like the same company. I build that system for product and lifestyle brands: the identity, and everything it has to live on. Over the last 8 years I've helped founders launch and relaunch brands that need to look as good on a shelf as they do on a screen. Most of my work goes past the logo into the places customers actually meet the brand, like packaging, menus, retail signage, and print collateral. That is exactly where a weak identity falls apart and a strong one pays for itself. That's the difference in how I work: I don't hand off a logo and a PDF and disappear. I design the identity and the system that carries it, so the brand stays consistent the day after the project ends. What I build: - Brand identity systems: logo suite, color, type, and the rules that hold them together - Visual language for product brands: packaging, labels, and on-shelf presence - Brand collateral: menus, brochures, signage, business cards, and marketing print - Brand guidelines your team or your next designer can actually follow Where I'm strongest: brands that live in the physical world, like F&B, wellness, lifestyle, and consumer products, where the identity has to survive real packaging and print, not just a mockup. How it works: clear scope before we start, a first concept within 3 to 4 days, and full source files plus guidelines on handoff. Nothing locked to me. If you're building a brand that needs to feel coherent everywhere a customer sees it, send over what you're working on and I'll tell you honestly what it needs.

✅ 𝗠𝘂𝗹𝘁𝗶𝗽𝗹𝗲 𝟳-𝟴 𝗳𝗶𝗴𝘂𝗿𝗲 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗲𝘀 & 𝗦𝗮𝗮𝗦 𝗰𝗹𝗶𝗲𝗻𝘁𝘀/𝗮𝗽𝗽𝘀 𝗮𝗰𝗾𝘂𝗶𝗿𝗲𝗱. ✅ 𝟳𝟱+ 𝗮𝗽𝗽𝘀 𝗯𝘂𝗶𝗹𝘁. 𝟭𝟭+ 𝘆𝗲𝗮𝗿𝘀 𝗽𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲. ✅ 𝗔𝗰𝗰𝘂𝗿𝗮𝘁𝗲 & 𝗴𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲𝗱 𝗾𝘂𝗼𝘁𝗲𝘀 𝘄𝗶𝘁𝗵 𝟯𝟬-𝟰𝟬% 𝗹𝗼𝘄𝗲𝗿 𝗰𝗼𝘀𝘁𝘀 𝗮𝗻𝗱 𝗱𝗲𝘃 𝘁𝗶𝗺𝗲𝘀 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗽𝗿𝗼𝗽𝗿𝗶𝗲𝘁𝗮𝗿𝘆 𝗳𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸 𝘂𝘀𝗲(prebuilt-SaaS code). ✅ 𝗣𝗵𝗲𝗻𝗼𝗺𝗲𝗻𝗮𝗹 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗺𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝘀𝗸𝗶𝗹𝗹𝘀. 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁 𝗱𝗲𝘃 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝗳𝗼𝗹𝗹𝗼𝘄𝗲𝗱 𝗯𝘂𝗶𝗹𝘁 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗼𝘁𝗵𝗲𝗿 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗲𝘀. ✅ 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀, 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲-𝗿𝗲𝗮𝗱𝘆 𝗳𝗿𝗼𝗺 𝗹𝗮𝘂𝗻𝗰𝗵. ✅ 𝗨𝗦 𝗰𝗹𝗶𝗲𝗻𝘁 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝘁𝘆. Hi, I’m Andrew! I specialize in delivering polished SaaS apps consistently focused on earning revenue. 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝗼𝗿 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝗮𝗻𝗱 𝗶𝗳 𝘁𝗵𝗲𝗿𝗲’𝘀 𝗮 𝗹𝗶𝗸𝗲𝗹𝗶𝗵𝗼𝗼𝗱 𝗼𝗳 𝗮 𝗴𝗼𝗼𝗱 𝗳𝗶𝘁 𝘁𝗼 𝘄𝗼𝗿𝗸 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿, 𝗜’𝗹𝗹 𝗶𝗻𝘃𝗶𝘁𝗲 𝘆𝗼𝘂 𝘁𝗼 𝗯𝗼𝗼𝗸 𝗮 𝗰𝗼𝗺𝗽𝗹𝗶𝗺𝗲𝗻𝘁𝗮𝗿𝘆 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝗰𝗮𝗹𝗹 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿. 🗣 𝗝𝗼𝗵𝗻 𝗠𝘂𝗹𝗹𝗲𝗻𝗵𝗼𝗹𝘇 - 𝗛𝗲𝗮𝗱 𝗼𝗳 𝗦𝗮𝗹𝗲𝘀, 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 - 𝗨𝗯𝗲𝗿 𝗘𝗮𝘁𝘀 ❝ 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. ❞ 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: ⚡ amzalert.com (8-Figure Acquisition - Rebuilt In 4 Months) ⚡ launchcontrol.us (8-Figure Annual Recurring Revenue - ARR) ⚡ 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: ☑️ Existing Businesses - Post-revenue ☑️ Solopreneurs & Small Teams - Wanting to build an MVP app ☑️ Funded Startups - Focused on turning funding into MRR ☑️ Existing Early Stage SaaS - Want to rebuild and scale up I’m the founder of a small, hand-picked team of talented humans. I’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: 📱Cross Device Compatibility - Desktop - Mobile - Tablet 📈 App Speed Optimization 🧩 Scaleable - Cost-Effective Feature Addition Potential 🛡️ Security 📊 User Analytics & Internal Dashboards 🌐 Multi-Language Localization 🤖 Quality Assurance - QA 📜 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 you’re interested in working together. Talk soon! Andrew Mace - Founder - Lean Engineering Highlights of the work I have extensive experience in includes: SaaS MVP • AI Automation • No-Code/Low-Code • Process Automation • RPA • .NET 8 • Python • AWS • Azure • Docker • Serverless • OpenAI / ChatGPT • Generative AI • Zapier • Make.com • UiPath • Power Automate • n8n • Bubble • Airtable • Stripe • PayPal • Twilio • Slack • Teams • REST APIs • Webhooks • SQL • PostgreSQL • Redis • Power BI • KPI Dashboards • ETL • Airflow • Real-Time Chat • Push Notifications • Subscription Billing • CRM Integration • Lead Generation Bots • Data Analytics • Digital Transformation • Workflow Automation • Rapid Prototyping

Is your tracking built on a shaky foundation? I fix broken attribution for high-growth brands by building GTM Server-Side "Truth Engines" that restore your ROAS. Stop guessing. Start measuring with 100% precision. In 2026, standard browser-based tracking is dead. Between iOS privacy, ad-blockers, and messy DataLayers, most brands lose 30%+ of their data. With 8+ years of experience and a track record of managing tracking for €20M+ quarterly E-commerce revenue, I provide the technical fix. 🏗️ Google Tag Manager (GTM) Architecture I don’t just "install" tags; I build a scalable measurement framework. My core setup ensures your site remains fast while your data remains 100% accurate: - Custom DataLayer Design: I write the technical specifications for your developers (or implement them myself via JS) to ensure that every user action—from E-commerce transactions to complex form interactions—is captured in the DataLayer. - Server-Side GTM (SSGTM): I specialize in moving your tracking off the user’s browser and onto a private server (GCP/Stape). This bypasses ad-blockers, extends the life of cookies (ITP), and drastically improves your Google PageSpeed scores by reducing heavy "tag bloat." - Variable & Trigger Optimization: Using Custom JavaScript variables and CSS selectors to track interactions that standard GTM triggers miss (e.g., dynamic "Thank You" messages, partial form fills, and scroll-depth milestones). -The "One-Tag" Principle: I organize your container using a clean, professional hierarchy that makes it easy to audit and scale, preventing "tag soup" and redundant firing. 📊 Google Analytics 4 (GA4) Specialist - I architect GA4 for business intelligence, not just basic reporting: - Advanced Event Tracking: Precision setup for Phone Calls, Form Submissions, and Button Clicks. - Full Ecommerce Suite: Implementation of ViewItem, AddToCart, and Purchase events with exact revenue mapping. - Cross-Domain & UTM Fixes: Ensuring data continuity across domains and cleaning up messy "Unassigned" traffic via UTM parameter logic. 📈 Google Ads & High-Performance Tracking I feed the Google algorithm high-quality signals via Enhanced Conversions for: - Purchase, Lead, & Call Conversions: Linking every sales event, form lead, and CallRail phone call back to specific ad spend to optimize Smart Bidding. 📱 Meta & TikTok Conversion Specialist (CAPI & Events API) I implement robust, privacy-first tracking to reclaim signals lost to iOS: - Server-to-Server (StS): Full implementation of Meta CAPI and TikTok Events API with 100% event deduplication. - Lead & Call Attribution: Capturing Purchases, Forms, and Phone Calls directly from your ads. 🛍️ Shopify Tracking Specialist I specialize in the modern Shopify tracking ecosystem to ensure zero data loss: - Shopify Customer Events: I implement tracking via the Shopify Web Pixel API (Customer Events) for a secure, sandbox-compliant setup that doesn't break during theme updates. - Custom Pixel Integration: Seamlessly connecting Shopify data to GTM and GA4 without relying on buggy third-party apps. 🔗 Technical Integrations & Tools CRMs & Forms: Full attribution for HubSpot and Typeform. - CMPs: Expert implementation of OneTrust and Cookiebot via Google Consent Mode v2. 📉 Looker Studio (Data Visualization & Reporting) I turn raw tracking data into a visual "Command Center" for your business. I specialize in deep GA4 integration to pull real-time insights directly from your measurement protocol: - GA4 Native Integration: Building custom reports using GA4 data to visualize user journeys, engagement rates, and lifecycle stages. - Full-Funnel Visualization: Creating intuitive dashboards that show exactly where users drop off—from the first click to the final purchase or lead. - Cross-Channel ROI: Blending GA4 data with Meta, TikTok, and Google Ads to show your Blended ROAS and Customer Acquisition Cost (CAC) in one view. -BigQuery & SQL Reporting: For high-volume stores, I connect GA4 to BigQuery to bypass data sampling and provide 100% accurate, high-speed reporting. Languages: JavaScript, SQL (BigQuery), HTML/CSS. The Goal: 95%+ data accuracy, perfect attribution, and total compliance. Most tracking issues can be identified in a 10-minute audit. If you’re tired of "ghost data" and want to scale your ads with confidence, click the 'Invite' or 'Hire' button and let’s fix your data today.