Mobile developer with experience working in a React Native + Expo environment with the Meta SDK.

@hirujiyu

➰➰ EXPERIENCED MOBILE APP DEVELOPER SINCE 8+ YEARS Hi there, Yes, I can surely help you with you provided details and here are the answers to your questions :- 1️⃣ Have you ever built a CAPI server yourself? Yes. I’ve built custom Meta Conversions API (CAPI) servers using Node.js and Firebase Functions, handling secure event forwarding, server-side tracking, and fallback logic to improve attribution accuracy. 2️⃣ Do you have experience with Event Deduplication? Yes. I’ve implemented browser + server event deduplication using event_id matching between Pixel and CAPI to prevent double reporting and ensure clean ad performance data. 3️⃣ Have you ever integrated a Meta SDK into Expo managed? Yes. I’ve integrated Meta SDK in Expo (managed workflow) using config plugins and EAS build, including handling native dependencies without ejecting when possible. 4️⃣ Do you have experience with RevenueCat webhook → Meta transfer? Yes. I’ve built webhook listeners that capture RevenueCat subscription events and forward them to Meta CAPI with proper event mapping (Purchase, Subscribe, Trial Start) and value/currency parameters. 5️⃣ Do you have experience with iOS ATT? Yes. I’ve implemented App Tracking Transparency (ATT) flow, including pre-permission prompts, handling user consent states, SKAdNetwork fallback, and ensuring compliance with App Store policies. ♾️ That's all for now. I can commence immediately. I am open to a chat to proceed forward with the next step. Thank You.

@AwaisChaudhry

Hello, I’m excited to work with React Native + Expo in a Meta SDK setup. I’ll build a robust, lightweight CAPI-like server, implement event dedup, and connect RevenueCat webhooks to Meta events. I’ll integrate Meta SDK into an Expo managed workflow with careful handling of iOS ATT and user consent, plus a clean API layer for easy tuning. My approach is modular: set up the backend, wire the Meta SDK frontend, implement dedupe logic, test end-to-end flows, and provide clear docs and tests. I’ll deliver in measurable milestones with quick wins and non-disruptive code changes. What are your target platforms (iOS/Android) and current backend stack, plus any existing Expo config or METAsdk versions we must align with? Best regards,

@corpmember29

Hi There!! **** You can track the project’s progress using the tracker. I’m available to work 40 hours per week **** After reading your request, I found it to be rather intriguing. I can provide timely, high-quality assistance for your project as a senior full-stack engineer (React Native + Expo Android & iPhone /iPad) and App admin with development (API) web services admin can manage the app from the backend. successfully implement this project from start-to-finish. Let's come together and create a platform that not only propels your business but also stands out prominently within the marketplace. Awaiting for your positive response. Thanks >>>>>> We'll share our portfolio in Chat. Let's talk further speak over the freelancer call or chat. <<<<<<

@Julian29

Hello, HAVE HANDS-ON EXPERIENCE WITH SUCH PROJECT. 1. Have you ever built a CAPI server yourself? Yes. I have built Meta Conversions API (CAPI) servers using Node.js/Express, handling secure event forwarding, SHA-256 hashing of user data, event_id generation, and server-side purchase/subscription tracking to improve Event Match Quality and reliability. 2. Do you have experience with Event Deduplication? Yes. I’ve implemented proper event deduplication between client-side Meta SDK events and server-side CAPI events using consistent event_id strategies to prevent double counting and ensure clean attribution reporting. 3. Have you ever integrated a Meta SDK into Expo managed? Yes. I’ve integrated the Meta SDK within Expo managed workflow using config plugins and custom development builds where necessary, ensuring proper native module linking, event tracking, and validation through Meta Events Manager. 4. Do you have experience with RevenueCat webhook → Meta transfer? Yes. I’ve built webhook listeners that receive RevenueCat subscription events (initial purchase, renewals, cancellations) and forward them to Meta via CAPI with correct value, currency, and subscription event mapping for accurate ROAS tracking. 5. Yes. I’ve implemented App Tracking Transparency flows, managed permission prompts strategically, configured SKAdNetwork fallback tracking, and ensured compliance while maintaining optimal attribution performance. Thanks & regards, Julian

@tangramua

Dear ,   We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time.   We are 25 years in this business and our technical specialists have strong experience in JavaScript, Mobile App Development, iPhone, iOS Development, React Native, Mobile Development, Facebook SDK, App Development, API Integration, Expo and other technologies relevant to your project.   Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews.   Please contact us via Freelancer Chat to discuss your project in details.    Best regards, Sales department Tangram Canada Inc.     

@OutsourceMan

⭐⭐⭐⭐⭐ Yes. CnELIndia has built custom CAPI servers for Meta using Node.js, securely handling browser/server events, hashing user data, and managing high-volume event pipelines with logging and retry logic. Yes. We have implemented event deduplication by aligning Pixel and CAPI events via shared event_id, ensuring accurate attribution and preventing double counting across web and app sources. Yes. We have integrated the Meta SDK into Expo Managed workflows using config plugins and EAS builds, resolving native module constraints without ejecting, and validating event tracking end-to-end. Yes. We have connected RevenueCat webhooks to Meta via secure server endpoints, transforming subscription lifecycle events into compliant CAPI events for optimized ROAS tracking. Yes. We have implemented iOS ATT flows, including pre-prompts, consent tracking, SKAdNetwork configuration, and compliance testing. Under Raman Ladhani’s leadership, CnELIndia will audit your stack, architect the tracking flow, implement securely, test attribution accuracy, and deliver fully validated deployment.

@softsolution2000

Yes, I have extensive experience in working with React Native and Expo, including integrating the Meta SDK. I have built a CAPI server, handled Event Deduplication, and integrated RevenueCat webhook → Meta transfer successfully. Additionally, I am well-versed in iOS ATT requirements. My 15 years of experience in JavaScript, Mobile App Development, iPhone, iOS Development, and React Native make me a perfect fit for your project. I am confident in my abilities to deliver high-quality results within your budget. Let's discuss the details and get started right away. Please go through my profile to see my past work. Looking forward to hearing from you.

@contriverz

Yes. I’ve built Meta Conversions API (CAPI) servers using Node.js (Express/NestJS). I handled event validation, hashing (SHA-256 for PII), event_id generation, server-side tracking, and fallback logic from client → server. I also implemented retry queues and logging for reliability and debugging via Meta Events Manager. Do you have experience with Event Deduplication? Yes. I’ve implemented proper browser + server event deduplication using shared event_id values between Pixel and CAPI events. I structured events to ensure Meta correctly deduplicates purchase and subscription events. Have you ever integrated a Meta SDK into Expo managed? Yes. In Expo managed workflow, I’ve integrated Meta SDK using expo-dev-client and config plugins when native modules were required. I handled iOS and Android permissions, deep linking, and verified event tracking inside Meta’s Test Events tool. Do you have experience with RevenueCat webhook → Meta transfer? Yes. I’ve built webhook listeners that receive RevenueCat subscription events (initial purchase, renewal, cancellation) and forward them to Meta via CAPI. I mapped RevenueCat payloads to Meta’s required event structure and ensured proper event_id handling for attribution consistency. Do you have experience with iOS ATT? Yes. I’ve implemented App Tracking Transparency (ATT) using Expo and native iOS configurations. I handled permission prompts, conditional tracking logic based on user consent, Regards Dinesh L

@ASirbescu

Hello, As an experienced full-stack developer, I have a keen eye for detail and a strong track record in successfully delivering complex projects with diverse requirements. My expertise in JavaScript will be invaluable for this project, particularly given the emphasis on React Native and Expo. I'm well-versed in creating web and mobile applications that are both efficient and user-friendly. In terms of Meta SDK integration into an Expo managed environment, I've worked with it extensively in the past, leveraging its robust capabilities for event deduplication and RevenueCat webhook. Additionally, I have a solid understanding of iOS ATT. I am confident that my breadth and depth of experience can contribute immensely to your project. I'm committed to not just meeting your needs but exceeding your expectations through clean code, modern design, and remarkable end-user experience. Let us collaborate to create something extraordinary together! Thanks!

@XanvraTECH

Hello, I am Warda Haider, a skilled iOS developer with extensive experience in Mobile App Development, iPhone, JavaScript, React Native, and API Integration. I have successfully completed projects similar to yours, showcasing my expertise in developing mobile applications using React Native and integrating various SDKs. I understand the project requirements for working in a React Native + Expo environment with the Meta SDK. My portfolio demonstrates my ability to tackle complex tasks like CAPI server creation, Event Deduplication, Meta SDK integration into Expo managed, RevenueCat webhook → Meta transfer, and iOS ATT integration. I am confident in my ability to deliver high-quality results for your project. Let's discuss further to explore how I can contribute to your project's success. - MY WORK STATS: ✨ https://www.freelancer.com/u/XanvraTECH Best regards, Warda Haider

@efanntyo

Hi there, I’m Efanntyo, a seasoned mobile developer with extensive React Native and Expo experience, including deep work with Meta SDK integrations and event-driven analytics. I’ve led multiple projects where we built custom CAPI-like endpoints, implemented robust event deduplication, and connected Expo managed workflows with native SDKs, ensuring smooth OTA updates and reliable analytics pipelines. For RevenueCat webhook to Meta data flow and iOS ATT compliance, I’ve architected secure, privacy-conscious integrations that respect user consent while preserving conversion reliability. Why I’m a strong fit: ⭐ Proficient in API integration, JavaScript, and Facebook/Meta SDKs, plus hands-on iOS development and Expo management. ⭐ Experience with serverless or microservice backends to host CAPI-like interfaces, ensuring scalable event ingestion and deduplication. ⭐ Familiar with RevenueCat webhooks, and with iOS 14+/ATT prompts, configurable at runtime for a seamless user experience. Approach: I would start with a concise integration plan outlining data flows, event schemas, and idempotent deduplication rules. Then I’d implement a minimal Expo-compatible module for Meta SDK events, set up a secure backend endpoint to receive and forward events, and wire up RevenueCat webhook triggers with appropriate privacy controls. I’ll provide clear documentation, robust error handling, and test harnesses to validate end-to-end flows before deployment. The project will follow CI/CD practic

@abhisaini0188

Hello, As a seasoned web and mobile application developer, I've gathered over a decade of experience that would place me in an excellent position to execute your project. I have a deep understanding of the skills you require and have successfully implemented them in various projects. I possess specific expertise in React Native development and have hands-on experience working with Expo and Meta SDK. Moreover, my ability to integrate complex APIs seamlessly, including RevenueCat webhooks and Meta transfer ensures that there are no compatibility issues or data loss. Furthermore, my knowledge and execution of iOS ATT implicates I understand the intricacies associated with Apple's privacy requirements in your project. My proficiency extends beyond this into full-stack mobile development and my broad understanding of modern development tools like Git, GitHub, GitLab, etc., makes me highly adaptable to any technology stack your project might require. Employing cutting-edge technology such as AI/Machine Learning, provides me with the unique capability of identifying strategies that yield precise results. Whilst collaborating closely with clients like yourself is essential for me to deliver well above expectations; my primary aim is to ensure quality, security, adherence to milestones/delivery dates, all while providing long-term support. Feel free to tap into my proficiency for optimal outcomes on your project – let’s get started! With Regards!

@Curveballsol

Hello, I understand that you are seeking a mobile developer with expertise in React Native, Expo, and the Meta SDK. I have extensive experience in JavaScript, Mobile App Development, iOS Development, and React Native, including integrating SDKs and handling server-side functionalities. I have successfully implemented CAPI servers, managed Event Deduplication processes, integrated Meta SDKs into Expo environments, worked with RevenueCat webhooks for Meta transfers, and navigated iOS ATT requirements. Effective communication and collaboration are key aspects of my work ethic. You can view examples of my previous projects in my portfolio https://www.freelancer.com/u/Curveballsol I am confident in my ability to deliver high-quality results for your project. Best regards, Curveball Solutions

@vishal1145

Your Meta SDK integration will fail Apple's App Store review if you're not handling ATT consent before firing tracking events. I've seen 3 clients get rejected for this exact reason - the fix requires coordinating the consent flow with Meta's data processing queue. Quick question - are you using Expo's managed workflow or bare workflow? The SDK integration strategy is completely different. Also, what's your current event volume? If you're processing more than 1K conversions per day, you'll need batch deduplication logic or Meta will flag duplicate purchases. Here's what I've built: - CAPI SERVER: Built 2 custom CAPI implementations using Node.js + Express that handle server-side event forwarding with automatic retry logic for failed requests. One processed 50K events/day for an e-commerce client. - EVENT DEDUPLICATION: Implemented event_id matching between client-side SDK and server-side CAPI to prevent double-counting purchases. Used Redis to track event IDs with 24-hour TTL. - META SDK + EXPO MANAGED: Integrated Facebook SDK into Expo managed workflow using custom config plugins. Had to work around Expo's limitations by creating a development build with expo-dev-client. - REVENUECAT → META TRANSFER: Set up webhook listeners that capture RevenueCat subscription events and forward them to Meta CAPI with proper event mapping (Subscribe, StartTrial, Revenue values). - iOS ATT: Implemented App Tracking Transparency prompts using expo-tracking-transparency, ensuring Meta SDK only fires after user consent. Handled the "Ask App Not to Track" edge case where limited data events still need to fire. I've done this exact stack for 2 subscription apps that scaled past 10K MAU. Let's discuss your event architecture and deduplication strategy before you start sending production traffic to Meta.

@arbu1499

Hi, I’ve worked hands-on with Meta CAPI servers, including proper event deduplication using shared event_id between Pixel and server events to prevent double tracking. I’ve also integrated Meta SDK in Expo managed apps (with EAS + config plugins), handled RevenueCat webhooks to forward subscription events to Meta via CAPI, and implemented iOS ATT flows correctly before SDK initialization. Your stack and tracking flow requirements are very aligned with projects I’ve already delivered, so I can jump in confidently and set this up cleanly and reliably. Looking forward for your positive response in the chatbox. Best Regards, Arbaz H

@kareemmaize

Hi, there Have you ever built a CAPI server yourself? Yes. I’ve implemented server-side Conversions API pipelines using Node.js where events (purchase, subscribe, trial_start) are validated, normalized, and forwarded to Meta with hashed identifiers (email, phone, external_id). The server handled retry logic, idempotency keys, and logging for audit traceability. Do you have experience with Event Deduplication? Yes. I’ve implemented browser + server deduplication using shared event_id values, ensuring the Meta Pixel and CAPI events match exactly. I designed middleware to generate and persist deterministic event IDs to prevent duplicate attribution. Have you integrated a Meta SDK into Expo managed? Yes. I’ve worked with Expo-managed workflow using expo-build-properties and config plugins to inject native Meta SDK dependencies while preserving OTA compatibility. RevenueCat webhook → Meta transfer experience? Yes. I’ve built webhook listeners that capture subscription lifecycle events from RevenueCat, transform payloads, and forward them via CAPI to Meta with proper attribution mapping. Experience with iOS ATT? Yes. I’ve implemented ATT permission flows using Expo + native modules, including pre-permission UX, tracking status validation, and conditional SDK initialization based on user consent.

@rbtech1984

Hi There!!! ★★★★ ( React Native + Expo Mobile Developer with Meta SDK Expertise ) ★★★★ I understand you need a React Native developer experienced in Expo and Meta SDK integration, focusing on CAPI server setup, Event Deduplication, RevenueCat → Meta webhook transfer, and iOS ATT compliance. You want someone who can handle all these end-to-end with precision. Services mentioned here based on project details ⚜ Built CAPI servers for mobile apps and managed server-to-server event flows ⚜ Implemented Event Deduplication to ensure accurate analytics and ad reporting ⚜ Integrated Meta SDK in Expo managed workflow for iOS and Android apps ⚜ Connected RevenueCat webhooks to Meta for subscription and revenue tracking ⚜ Configured iOS ATT prompts and tracking consent handling ⚜ Optimized event data for ad targeting and conversion accuracy ⚜ Troubleshooted SDK conflicts and ensured smooth app performance I have 9+ years of mobile development experience, mostly in React Native & Expo, with hands-on Meta SDK projects and deep knowledge of subscription analytics and tracking. I’ll follow a structured approach, using Expo, Meta SDK, Node.js for CAPI, and RevenueCat webhooks to deliver a seamless solution. Looking forward to discussing your project and getting started soon. Warm Regards, Farhin B.

@rajubhalani

For the project requirement of working in a React Native + Expo environment with the Meta SDK, I would begin by thoroughly reviewing the project specifications and analyzing the necessary steps to integrate the Meta SDK seamlessly. My approach would involve first understanding the existing codebase, identifying potential compatibility issues, and then proposing a clear plan for the integration process. So I believe that by leveraging my experience in React Native development and previous work with SDK integrations, I can ensure a smooth and efficient integration of the Meta SDK into the Expo managed environment. This approach will result in a robust and reliable application that meets the project's requirements effectively. By the way, could you provide more details on the specific functionalities or features that need to be implemented using the Meta SDK? This information would help me tailor my approach and ensure that the integration aligns perfectly with the project goals.

@johnallenvillan1

Hi there, I'm an experienced mobile developer specializing in React Native and Expo environments with proficiency in the Meta SDK. I have built CAPI servers, worked on Event Deduplication, integrated Meta SDK into Expo managed, handled RevenueCat webhook to Meta transfer, and managed iOS ATT. I am well-versed in JavaScript, iOS development, API integration, and mobile app development. Let's discuss how I can bring value to your project.