Darttrabajos

...Android builds. I need these issues diagnosed and patched immediately so the service is stable again. You’ll start by reproducing every reported symptom, tracing the root cause in the relevant codebase, and then pushing clean, tested fixes. Because the bugs touch every tier, expect to jump between PHP (Laravel controllers, Eloquent models, queues), JavaScript/TypeScript on the Node.js side, and Dart in the Flutter code. Clear commit messages and concise documentation of each change are essential so my in-house team can follow along. Deliverables • Verified fixes for all current frontend display issues in Node.js • Resolved Laravel processing errors with no new exceptions in the log • Crash-free Flutter build submitted as updated source plus release APK/...

...in real-time to user validation states (isThinking, isSuccess, isError). Overhaul Photo Upload Pipeline: Re-engineer a broken photo module using client-side downscaling/compression (flutter_image_compress), background upload streams (Dio), native .heic array conversion, and direct-to-CDN ingestion (Cloudinary/Uploadcare). Required Technical Stack & Experience: Proven track record with Flutter & Dart (minimum 3+ years production experience). Deep mastery of clean state management architectures (Bloc, Riverpod, or Provider). Experience working with Rive or complex interactive layout vector runtimes. Strong understanding of RESTful API contracts and secure multi-part chunked media uploads. Must provide portfolio examples of slick, highly animated onboarding flows or produc...

...services, analytics, and optional subscription payments. - Implement secure authentication, access controls, and data protection. - Write automated tests, debug issues, and optimize application performance. - Configure CI/CD and prepare Android and iOS production releases. - Publish the application to Google Play and the Apple App Store. Required Skills: React Native, Expo or Flutter, TypeScript or Dart, REST APIs, PostgreSQL, Firebase or Supabase, AI API Integration, Push Notifications, Real-Time Communication, Git, Mobile Testing, and App Store Deployment. Expected Deliverables: 1. Working Android and iOS applications. 2. Complete backend APIs and database integration. 3. Secure authentication and user management. 4. Social networking and real-time messaging features. 5. AI...

...existing developer to explain findings and proposed fixes. - Review important fixes before release. - Help determine which issues must be resolved before production launch. Required Experience: We are looking for a senior engineer with strong technical auditing experience. Previous experience with StackFood or similar platforms is strongly preferred. Strong experience required in: - Flutter / Dart - Laravel / PHP - React / JavaScript - Flutter State Management - REST APIs - Google Maps SDK - GPS / Geolocation - Google Places / Geocoding - Firebase / FCM - Android & iOS debugging - MySQL - Authentication / OTP flows - Git / Code Review - Application Architecture - Production debugging Previous experience with food delivery, courier, taxi, logistics, marketplace, or other r...

Mobile Application Penetration Tester – Flutter Android & iOS We are looking for an experienced mobile application security / penetration tester to perform a security assessment of our Flutter-based mobile application. About the application The application is a relatively small business SaaS mobile app built with Flutter/Dart, with a Laravel-based backend/API. The mobile application is intended for only two user roles: - Worker - Manager / Supervisor There is no Admin functionality in the mobile application. Admin functionality is web-only. The app is already functionally developed and internally tested. We are now looking for an independent security review before production release. Platforms Please test: - Android - iOS The application communicates with our TEST backend ...

I'm seeking an experienced Flutter developer to create a cross-platform freelance application for both iOS and Android. Core Functionalities: - Job posting and bidding - User profiles and ratings - In-app messaging system Design Requirements: - The app should have a modern and sleek design. Ideal Skills and Experience: - Proficiency in Flutter and Dart - Experience in developing cross-platform mobile applications - Strong UI/UX design skills, particularly in modern and sleek aesthetics - Knowledge of backend integration for real-time data handling - Excellent communication skills for project collaboration and updates Please provide a portfolio showcasing similar projects.

...We have a fully functional Matrimonial Application that was recently published on the Google Play Store [Play Store]. The app frontend is stable, but the backend is running on an outdated tech stack. We need an experienced developer or team to upgrade our entire system to modern standards for security, speed, and scalability. Our Current Tech Stack (Advanced Version): • Mobile Frontend: Flutter / Dart (Null-Safety compliant) • Backend Admin Panel: CodeIgniter 3.x • Server Language: PHP 7.4 • Database: MySQL 5.6 (Legacy version) What We Need From You (Scope of Work): 1. Backend Migration: Rewrite and migrate the full admin panel and REST APIs from CodeIgniter 3 to the latest Laravel (11.x or 12.x) on PHP 8.2+ [Laravel 12.x Releases]. 2. Database Upgrade & M...

...deposit funds, – withdraw funds, – transfer funds to another in-app user, and – convert balances between multiple currencies in-app. Required currency coverage (for conversion engine) • USD • EUR • XOF (CFA Franc) • UGX (Ugandan Shilling) • ZAR (South African Rand) • KES (Kenyan Shilling) • AED (UAE Dirham) Technical expectations The project must be written in pure Dart/Flutter, follow clean architecture, and include clear API stubs or service classes so our backend team can wire up existing banking APIs. State management is up to you (Provider, Riverpod, Bloc are all acceptable) but it has to be consistent throughout the codebase. Deliverables 1. Complete Flutter source code & assets. 2...

...deposit funds, – withdraw funds, – transfer funds to another in-app user, and – convert balances between multiple currencies in-app. Required currency coverage (for conversion engine) • USD • EUR • XOF (CFA Franc) • UGX (Ugandan Shilling) • ZAR (South African Rand) • KES (Kenyan Shilling) • AED (UAE Dirham) Technical expectations The project must be written in pure Dart/Flutter, follow clean architecture, and include clear API stubs or service classes so our backend team can wire up existing banking APIs. State management is up to you (Provider, Riverpod, Bloc are all acceptable) but it has to be consistent throughout the codebase. Deliverables 1. Complete Flutter source code & assets. 2...

FREELANCER MILESTONE: Global Kirtan App — Flutter Code Audit PROJECT OVERVIEW: We need an experienced Flutter developer to perform a thorough audit of our Kirtan App's source code. The project is built with Dart/Flutter and is live on Android. The review must cover platform-specific nuances, the shared Flutter codebase, and the supporting backend. --- SCOPE OF AUDIT: **1. Code Quality & Maintainability** - Structure, readability, and design patterns - State management choices and widget tree optimization - Test coverage and overall maintainability - Dependency management and library versions - Technical debt and refactoring priorities **2. Security Vulnerabilities** - Insecure storage and data handling - Improper network calls and API secur...

...Clean product cards. - Modern dashboard. - Smooth animations. - Responsive layouts. - Modern AI chat interface. - Pill-shaped chat input. - Microphone and send actions. - Arabic and English UI. - Full RTL / LTR support. - Consistent design system across the application. The UI should feel modern, professional, premium, and suitable for a real commercial product. Technical Requirements - Flutter - Dart - Firebase Authentication - Cloud Firestore - Firebase Storage - Riverpod - GoRouter - Clean Architecture - Arabic / English Localization - RTL / LTR Support - Speech Recognition - Text-to-Speech - Real-time Firestore Streams - Role-Based Access Control - Scalable Data Architecture Architecture Requirements The project should follow a clean and scalable architecture. Important...

...build a production-ready Android application combining an offline AI Background Remover with a Product Photo and Micro-Ad Studio. The app workflow: SELECT PHOTO → REMOVE BACKGROUND → EDIT → CREATE AD → EXPORT The most important requirement is that the core AI background removal and image editing work directly on the Android device without a paid cloud AI/API. PREFERRED TECHNOLOGY • Flutter + Dart preferred • Native Android/Kotlin also accepted • TensorFlow Lite, ONNX Runtime, MediaPipe or another suitable on-device ML solution 1. OFFLINE AI BACKGROUND REMOVAL The background-removal AI must run locally on the device. NO API or other paid cloud background-removal API. The developer must propose the exact AI model before development and p...

...Home, Profile, and Settings. I will share the complete feature list and all design assets up front. State management must follow the Provider pattern; navigation should combine tab, drawer, and stack flows in the way that feels most natural to the journey. Clean, well-structured code is a must, so please organise folders, keep components lean, and document anything that isn’t obvious. Flutter (Dart) or React Native (TypeScript) are both acceptable—choose whichever lets you implement Provider cleanly and deliver smooth performance. At the close of each milestone I need signed builds (TestFlight IPA and Google Play APK/AAB) that I can load on real devices for hands-on testing, along with the corresponding pull request so I can review the diff. Push notification ke...

...our CI build. I test each pull request on TestFlight and Google Play internal track before accepting. Deliverables 1. Updated Flutter source with new buttons/icons and responsive layout adjustments. 2. Verified fixes for the reported bugs, along with concise commit messages. 3. A brief changelog so future maintenance stays straightforward. If you are comfortable jumping into an existing Dart codebase and turning around small improvements quickly, let’s get started right away....

I need a straightforward iOS app that lets me keep score during x01 darts games—specifically 501, 701 and 1001. The focus is entirely on real-time score tracking, nothing more for this first release. Core flow • I open the app, pick the starting total (501, 701 or 1001) and enter throws. • The app automatically subtracts each dart or turn, shows the running total, and flags busts. • When a player checks out on an exact zero, the leg ends and the screen clearly announces the winner. That’s all the functionality I want right now—no player profiles, long-term stats or extra game types. A clean, uncluttered interface built with Swift or SwiftUI that runs smoothly on the latest iOS is what matters most. Deliverables • An Xcode project that...

...management, deep Firebase integration, and complete store deployments. Key Responsibilities Develop cross-platform apps using Flutter and Dart 3 for iOS and Android. Implement a Feature-first MVC architecture. Manage state using StatefulWidget, ChangeNotifier, and ValueNotifier. Integrate and manage backend services via Firebase: Firestore & Realtime Database Firebase Authentication (FireAuth) & App Check Firebase Cloud Messaging (FCM) Cloud Functions (2nd Gen) Utilize Git for code management and collaboration. Handle app deployment and management on Google Play Console and Apple App Store Connect. Requirements Proven experience in Flutter development using Dart 3. Strong knowledge of Feature-first MVC pattern and lightweight state management (ChangeNotifier / Valu...

I need a clean, reliable Flutter mobile application whose sole purpose is to present my existing Business / Corporate website inside an app experience. The build should feel fully native on both Android and iOS while simply reflecting everything users can already do on the site—pages, navigation, forms and any embedded media—without losing branding consistency. Please package the project in Dart / Flutter with all source code, a clear README for local builds, and the final release-ready APK and IPA. If you use WebView or a hybrid approach, be sure links open correctly, external URLs behave as expected, and basic offline handling is in place so blank screens never appear. Push notifications, analytics hooks and app-store screenshots are welcome bonuses if you can add ...

...handles categories or filters gracefully. • A persistent shopping cart with a clean, secure checkout experience. • User reviews and ratings displayed on each product page to build trust and engagement. For access control, the app should support email-and-password registration/login as well as social media sign-in; I don’t need guest checkout at this time. Please build with clean, well-commented Dart code, follow Flutter best practices for state management and responsive UI, and keep the architecture ready for future feature expansion. On hand-off, I’ll need: • Complete source code • Android (APK/AAB) and iOS (IPA) builds ready for store submission • A short setup/read-me so another developer can run the project locally without gue...

...format—PDF, Excel or Word—as long as the layout matches the existing receipt style and can be saved or shared from both Android and iOS builds. Second, the rerun module is producing wrong figures whenever a discount is applied. Core sales totals and taxes are fine; only the discount logic misfires, so totals after discount do not reconcile with the day-end report. All calculation code sits in a single Dart service class, and the discount rules are simple percentage or fixed-amount values pulled from Firestore. Deliverables • Add an “Generate Estimate” action on the cart/checkout page that outputs a well-formatted document and stores a copy in the local device and Firestore. • Refactor the discount calculation in the rerun module so totals a...

...can search, pick and display locations on an interactive map. 2) A payment module that supports both Razorpay and UPI end-to-end, from order creation to callback handling. The backend is flexible—I already have skeleton services running in PHP/Laravel for one project and Node.js for another, so if you are comfortable with either stack that is perfect. I care mainly about clean, well-documented Dart on the front end and solid REST hooks on the server side. Deliverables • Updated Flutter project with the Maps widget fully wired to my existing screens. • Secure payment flow with Razorpay & UPI, including webhook processing and success / failure handling. • Brief setup notes so I can reproduce the build locally. If you are in Tamil Nadu, know your ...

...Proposed payment milestones - Testing and UAT approach - Deployment approach - Warranty period after go-live - Post-production support and maintenance options - Maintenance cost after the warranty period - Cost/process for future enhancements - Any assumptions or exclusions from your proposal Preferred Technology Stack The preferred technology stack for planB is: - Mobile Application: Flutter / Dart for both Android and iOS - Backend / APIs: ASP.NET Core using .NET - Admin Web Portal: / TypeScript - Database: PostgreSQL - Caching / Booking Availability Controls: Redis - API Style: REST APIs - API Documentation: Swagger / OpenAPI - Push Notifications: Firebase Cloud Messaging - File and Image Storage: Cloud object storage such as AWS S3 or Azure Blob Storage - Hosting / Cloud ...

...OutSystems certifications 3. Experience with O11, ODC or both 4. Examples of complex OutSystems projects you have delivered 5. API integration experience 6. AWS and SQL Server experience 7. WebRTC or video integration experience, if applicable 8. Your daily rate 9. Your availability 10. Whether you can work independently as a technical lead Develop and maintain mobile applications using Flutter/Dart where required. Integrate Flutter applications with OutSystems and backend REST APIs. Implement authentication, push notifications, real-time communication and secure API access in Flutter. Experience with Flutter state management, mobile deployment, Android/iOS builds and app-store release processes. Experience integrating WebRTC / into Flutter is a strong advantage Please apply onl...

...Develop the complete banking app using Flutter and Dart. - Build clean, responsive, and professional UI. - Implement authentication, OTP verification, login/signup, and secure sessions. - Develop banking features such as account balance, transactions, money transfer, beneficiaries, payment history, and profile management. - Integrate REST APIs and handle API responses, loading states, errors, and authentication. - Implement secure token/session management. - Use Riverpod/Bloc or another scalable state-management solution. - Integrate push notifications. - Follow clean, maintainable, and reusable code architecture. - Test the application and fix bugs before delivery. - Prepare Android and iOS release builds. Required Skills - Strong Flutter/Dart experience - REST API inte...

...will provide the relevant API documentation and existing resources required for development. The developer will therefore **not be required to build the backend from scratch**. The main task is to take the existing mobile application and bring it to a properly functioning, polished and production-ready state. ### Main Requirements The successful developer will be responsible for: * Flutter/Dart development * iOS and Android support * Modern UX/UI redesign * Existing API integration and troubleshooting * Completion of unfinished functionality * Bug fixing * Firebase/push notifications * Performance optimization * Proper loading, error and empty states * Secure handling of user data * Cross-platform testing * App Store and Google Play preparation ### Quality Is Extremely Impo...

...GPS tracking accuracy, AI-generated alerts, and live video streams. Verify stability of WebSocket connections under varying network conditions. Perform regression, load, and user acceptance testing as required. Ensure multi-tenant data security and appropriate access permission controls. Preferred Technical Stack Layer Technology Frontend React, TypeScript, , Tailwind CSS Mobile Flutter, Dart, Firebase Backend Node.js, NestJS, TypeScript Database PostgreSQL, PostGIS Real-Time Redis, WebSockets Cloud AWS, Docker, GitHub Actions, CI/CD Video WebRTC, HLS, RTSP, FFmpeg, H.264/H.265 IoT OEM SDK/API, GPS/Telematics, JT/T808, JT/T905, JT/T1078 Testing Postman, Playwright/Cypress, Appium Candidates are not required to possess deep expertise in every listed technology. Strong full-stack f...

...navigation structure—to make the experience cleaner, faster to grasp, and consistent with current Material 3 guidelines. You will take the current Dart code and widget tree, diagnose pain points, and propose refreshed layouts, colour hierarchy, and animation cues that lift clarity without bloating the build size. Usability is the priority, so every change should be justified by real UX value: quicker first-task completion, reduced cognitive load, and an intuitive menu hierarchy. Deliverables • High-fidelity mock-ups or Figma frames showing the reworked home screen and navigation flow • Corresponding Flutter implementation (clean, commented Dart code) ready to merge into the existing repo • A short hand-off note explaining design rationale and any...

...alerts even when the app is in the background or closed. • Apply Provider for state management; if you see clear advantages in refining the pattern (e.g., layered providers, change notifiers), explain your approach before you code. • Supply signed builds (.apk and TestFlight / .ipa) for every milestone so I can install and test on physical devices. Quality expectations • Readable, modular Dart code with meaningful folder structure. • Clear separation of UI, business logic, and data layers. • In-code comments only where they add value; no commented-out dead code pushed to the repo. • Consistent naming conventions and linting. • All network or local-storage calls wrapped so they can be swapped or mocked later. I will open the repos...

I have a fully developed and stable Flutter application. I need an experienced individual freelancer to generate the production builds and submit the app to both Google Play Store and Apple App Store. Responsibilities: • Generate a signed AAB/APK for Android • Create an App Store-ready iOS archive • Configure signing, cert...screenshots and required accounts will be provided. Budget: ₹1,000–₹1,500 Timeline: 1–2 days Important: Please share links or evidence of your previously published Flutter applications. Your previous work will be reviewed, and the project will be awarded only if your experience and work quality are satisfactory. Only individual Indian freelancers should apply. No agencies, please. Skills: Flutter, Dart, Android, iOS, Xcode, Andro...

...release * iOS permissions and platform-specific configurations * Flutter plugins and iOS compatibility * Test and resolve issues on real iOS devices. * Continue working on other Flutter development tasks, bug fixes, and improvements when required. * Help ensure the Flutter application works properly and consistently on both iOS and Android. Requirements * Strong experience with Flutter and Dart. * Good practical knowledge of iOS development and Xcode. * Experience publishing Flutter applications to the Apple App Store. * Must have access to their own Mac and physical iPhone/iOS device for development and testing. * Experience troubleshooting Flutter iOS build and deployment issues. * Ability to work collaboratively with another Flutter developer. Main Objective The primar...

...system and reusable component package for our Flutter application. The goal is to create a robust, deterministic, and feature-rich reusable UI foundation and technology stack that delivers a consistent user experience across Windows and Android. We rethink how components will be used with our system. WHAT WE ARE LOOKING FOR The ideal developer should have strong experience with: * Flutter and Dart * Windows desktop application development with Flutter * Android application development * Responsive and adaptive UI development * UI/UX implementation and design systems * Reusable Flutter widgets and component libraries * Custom controls, themes, layouts, animations, and interactions * Consistent behaviour across different devices, resolutions, and platforms * Clean, maintainable...

...management that synchronises account data between app and web Design wise, think colourful and vibrant—bright accents, lively transitions and playful micro-animations that still keep navigation intuitive. I will supply the brand palette and logo assets; you translate them into a consistent Flutter UI using Material 3 or an equivalent modern toolkit. Key deliverables: • Complete Flutter/Dart codebase linked to my Git repo • All screens for catalog, product detail, cart, checkout, login, registration and profile • Real-time integration with the WooCommerce REST API (products, orders, customers) • Working builds uploaded to TestFlight and Google Play internal testing • App Store and Play Store-ready packages with icons, screenshots and listi...

...and set their required budget. After fit has been assessed, the lowest price will be considered. Current technical setup The platform includes a website hosted on Firebase, an Android application based on the same platform with additional features, and a local server connected to the website through ngrok. Local manual directories are part of the current setup. Frontend and application: Flutter, Dart, Android, and REST. Backend and local servers: Python and FastAPI. Data storage: local JSON files and custom Windows directories mapped through JSON files....

...Play Console without requiring an app update or developer changes for normal pricing adjustments Do not hard-code subscription prices in the app; display applicable store pricing Track trial starts, paid conversions, cancellations, and expirations in analytics Test the complete purchase flow on both iOS and Android Submit/update the production builds in both stores Required experience: Flutter/Dart, Firebase, Apple StoreKit/App Store Connect, Google Play Billing/Play Console, mobile subscription entitlement management, and previous production subscription implementations. Please provide examples of Flutter apps where you personally implemented subscriptions on both Apple and Google, explain the subscription architecture you used, and provide your fixed-price quote and estimated...

...interface must feel instantly familiar and intuitive to users who may not be tech-savvy. Core objectives • A clean, modern UI that follows Material 3 / Cupertino guidelines as appropriate • Smooth navigation and fully responsive layouts that adapt from small phones to large tablets • Snappy performance with careful state management and optimized build sizes • Production-ready, well-structured Dart code with meaningful comments, clear folder architecture, and null-safety throughout • Comprehensive testing: unit, widget, and integration tests covering critical paths Project scope 1. High-fidelity designs translated into Flutter widgets (Figma files will be supplied at kick-off or created collaboratively if you also offer design). 2. Impl...

...experience to feel complete even with its limited scope, so include only the essential screens—splash, onboarding, auth, home placeholder, profile, and a bare-bones settings drawer—styled through a central Theme so I can tweak branding without touching code. Solid error handling, basic form validation, and tidy state management matter more to me than flashy UI. Deliverables 1. Well-structured Flutter/Dart source code with clear folders and widget separation. 2. Firebase project configured for Authentication (plus Firestore or Realtime DB only if needed for profile storage). 3. Builds uploaded to Google Play Internal Testing and TestFlight, ready for invite-only distribution. 4. A brief Loom or similar walkthrough explaining project structure, environment variables, a...

...fixed-per-requirement will be decided together based on what makes sense for each piece of work — we're open to either. Confirmed Tech Stack Mobile app (Flutter/Dart): flutter_riverpod (state management), go_router (navigation), dio (networking), just_audio + audio_service (media playback and session handling), youtube_player_iframe (embedded video), flutter_map, flutter_secure_storage (encrypted credential storage). Release builds use R8 obfuscation and are properly signed. Backend (as specified): Node.js + TypeScript modular monolith, PostgreSQL, versioned REST API (/api/v1/), JWT-based authentication. What We Need From You • Real, demonstrable Flutter/Dart experience — ideally including audio or media-heavy apps • Comfort inheriting and w...

I need a series of responsive websites built from scratch using clean, well-structured HTML5, CSS3, vanilla J...concept, I’m open to your recommendations on structure and stack. Typical features such as authentication, search or contact forms can be added case-by-case, so please outline how you’d implement them (e.g., Firebase/Auth0, Elasticlunr, EmailJS or similar) and mention any libraries you prefer. Deliverables • Fully responsive, live website on my chosen host • All source files (HTML, CSS, JS, Dart/Flutter) clearly organised and commented • Short hand-off guide covering build steps, assets and content updates When you reply, include links to two or three modern sites you’ve coded with these technologies and let me know your usual turn...

...Git/GitHub * Docker * CI/CD * Database architecture * System architecture * Third-party integrations * Basic AI/LLM integration * Ability to review code and manage technical implementation You should be capable of creating a technical architecture, selecting the appropriate technology stack, estimating development effort and guiding other developers. ### 2. MOBILE APP DEVELOPER Preferred: * Flutter/Dart OR React Native/TypeScript * Android & iOS development * Firebase * REST APIs * Push notifications * Payment integrations * Maps/location * Authentication * Camera/file uploads * App Store & Google Play deployment * Performance optimization ### 3. AI / AUTOMATION DEVELOPER We are particularly interested in developers experienced with modern AI applications. Required...

...and, if time permits, social sign-in) • Product listings pulled in real time from the existing endpoints • In-app UPC scanning with the device camera to fetch item details instantly • PDF parsing so users can upload or open a document and have key fields auto-extracted Project scope You will take the UX from Figma (or propose a lean, responsive layout if you prefer), wire it up in Flutter/Dart, handle state management, and integrate every call to the backend. Clean architecture, null-safety, and modular code are important as this project will evolve. Deliverables 1. Complete Flutter source code in a Git repo, clearly documented 2. Working builds for TestFlight and Google Play Internal Test that pass store-level checks 3. Brief integration guide des...

...configuration • Security and authentication • GitHub/GitHub Actions CI/CD • Android production builds and Google Play submission • iOS production builds and App Store Connect submission • Real-device testing and production debugging ### Required Experience Strong production experience is required with: • / React / TypeScript • Turborepo / pnpm • PostgreSQL / Prisma / Supabase • Flutter / Dart • REST APIs • JWT/OTP/RBAC • Payment gateways • Google Maps • AWS S3 • Push notifications • GitHub Actions / CI/CD • Vercel • Android & iOS production deployment We are specifically looking for someone capable of taking ownership of an existing complex codebase, understanding it quickly, indepe...

...show up every time I run the app—no randomness involved—so you’ll be able to reproduce them quickly. What I’m seeing: • UI/UX issues: the user screen doesn't display • Performance problems: janky scrolls and noticeable frame drops on list-heavy pages. • Functionality errors: many API-driven features fail to return data even though the backend is healthy. Your task is to dive into the existing Dart code, locate the root causes and deliver clean, well-commented fixes. Once done, I expect a debug build for review, followed by a signed release APK/AAB. All changes should compile without warnings, run smoothly on Android 8+ devices, and keep the current architecture intact. I work with Git so please push each logical fix to its own co...

I want a single-click Excel macro that handles our end-to-end shipment monitoring. The source workbook already lists LR numbers, supplier names and the courier used; VRL is the most frequent carrier, but the code should be structured so I can easily plug in the GATI, Blue Dart or any new tracking URL later. Here is what the macro must do every time I press the button: 1. Read every new tracking number on the “Source” sheet, open the correct courier site, grab the live status text and time-stamp it back into the same row. 2. Capture a full-page screen-shot of that tracking result, save it to a dated folder (PNG is fine) and note the file path beside the status. I have no preference on how you grab the image—use native VBA calls, Snipping Tool automation or any l...

...applications using Node.js, , React, Flutter, and AI technologies. The ideal candidate should have strong experience in full-stack development, REST APIs, mobile application development, AI integration, database architecture, authentication, third-party API integration, and cloud deployment. Required Technology Stack Backend: Node.js, / NestJS Web: , React.js Mobile: Flutter / Dart AI: AI/LLM API integration, AI-powered features, automation and intelligent workflows Database: PostgreSQL / MySQL / MongoDB APIs: REST API, third-party API integrations Authentication: JWT, OAuth, social login and secure authentication Cloud: AWS / Google Cloud / Azure or similar Version Control: Git, GitHub / GitLab / Bitbucket Responsibilities Develop responsive and scalable web applications

...permissions, and obtain a reliable device token every launch. • Implement foreground, background, and terminated-state handling so alerts arrive and display correctly no matter what the user is doing. • Parse the notification payload and, when a user taps on it, deep-link straight to the Messages screen (other screens may come later, but Messages is the first target). • Provide clean, well-commented Dart/Swift/Obj-C glue code plus any necessary updates to , Podfile, and firebase_messaging initialisation. • Test on at least one physical device running the latest iOS version and supply a short walkthrough or screencast that proves delivery and navigation work. Acceptance will be based on: – Successful receipt of push notifications in all app st...

...loop and game mechanics for the two sort puzzles, running smoothly in 3D. • At least 50 playable levels OR a lightweight procedural level generator with a sample seed list. • Simple but functional UI: title screen, level select, in-game HUD, pause, win/fail dialogs. • A progression layer that unlocks levels sequentially and stores player state locally. • Well-structured, commented C# (or Dart) scripts and an organised scene/prefab hierarchy so I can drop in new art, tweak variables, and push new puzzles without refactoring. • Stubs for ads (interstitial / rewarded) and basic IAP hooks; no SDK integration yet, just clearly-marked methods I can wire up later. • Clear build instructions and a quick README outlining where to extend mechanics,...

...configuration • Security and authentication • GitHub/GitHub Actions CI/CD • Android production builds and Google Play submission • iOS production builds and App Store Connect submission • Real-device testing and production debugging ### Required Experience Strong production experience is required with: • / React / TypeScript • Turborepo / pnpm • PostgreSQL / Prisma / Supabase • Flutter / Dart • REST APIs • JWT/OTP/RBAC • Payment gateways • Google Maps • AWS S3 • Push notifications • GitHub Actions / CI/CD • Vercel • Android & iOS production deployment We are specifically looking for someone capable of taking ownership of an existing complex codebase, understanding it quickly, indepe...

...but critical change inside my existing utility-style task-management app. The app already handles to-do lists smoothly, so the core codebase is stable; the only work required is updating specific document details that appear in several screens and their related models. You’ll get the current Flutter project (Dart 3, Material 3 widgets) and a concise list of every field, label and model property that must be renamed or reformatted. I expect: • Clean, commented edits to the relevant Dart files • Verification that each modified screen still compiles and behaves identically aside from the updated text/data • A brief changelog so I can track which classes and widgets were touched Once the changes are complete and I confirm the new document details re...

...Database * PostgreSQL * Prisma * Supabase * Complex relational databases * Transactions and migrations * Query optimization ### Authentication/Security * JWT * jsonwebtoken * jose * bcrypt * OTP * Role-based access control * Secure API architecture ### Integrations/Cloud * AWS S3 * Payment gateways * SMS/OTP providers * Google Maps APIs * Push notifications * Vercel ### Mobile * Flutter * Dart * Android * iOS * REST API integration * Google Maps * Push notifications * Payment integration * Secure local storage * Production Android/iOS builds * Google Play Store deployment * Apple App Store deployment ### DevOps * Git/GitHub * GitHub Actions * CI/CD * Vercel * Android release process * iOS/App Store release process * Production debugging ## SENIOR-LEVEL RESPONSIBILITIES ...

...the existing gateway logic. PCI-DSS compliance and graceful error handling are non-negotiable. Ongoing scope • Keep dependencies, Flutter version, and plugins up to date. • Triage and fix bugs, improve performance, and fine-tune API calls to WooCommerce. • Collaborate on future modules such as loyalty, in-app promotions, or any other growth ideas we brainstorm. Tech landscape Flutter, Dart, WooCommerce REST API, cURL, Stripe/PayPal/UPI (or your recommended stack), Firebase Cloud Messaging, Git. Deliverables 1. Working notification module fully tested on Android & iOS. 2. Unified payment service supporting the three listed methods with sandbox and live credentials. 3. Clean, documented commits merged into the existing Git repository and a shor...

...working on a staging deployment, with the new integration tests passing. Acceptance = a deposit confirmed end-to-end via webhook, a tournament that survives a server restart, a player that reconnects mid-game, and push notifications received on Android & iOS. Required skills Strong Node.js + (real-time, server-authoritative). MySQL with transactional money handling (no floats). Flutter/Dart (Android/iOS/Web). Payment-gateway / webhook integration. Plus: prior real-money, betting/gambling, or fintech experience. Terms Budget: €1,500 (fixed price, Phase 1) Timeline: 1 month Intended as the first milestone of a longer engagement for the right developer. To apply Share relevant real-money or real-time multiplayer projects (links), your take on the biggest risk in Phase 1, a...