Android ui design jobs

We need experienced UI/UX Designer, Graphic Designer, Web Designer. Our hourly price is INR.300-400 per hour. Need your behance or any portfolio URL to review.

Objective: Develop a dltHub Python script to fetch data from Airtable, convert it into a reusable e2e-Data template with dynamic placeholders, and validate it across three specific architectural scenarios within the UI as described below. 1. Template Development & Source Placeholders The script must leverage the dlt Airtable source. You must replace hardcoded configuration with dynamic placeholders that the e2e-Data UI will swap at runtime. Required Placeholders: ● <base_id> – The unique ID of the Airtable base. ● <table_names> – Specific table(s) to fetch (should allow for multiple or "all"). ● <api_key> – Handled via __secrets.AIRTABLE_API_KEY or custom named key. Reference: Use the existing platform templates as a referen...

...I’m looking for 1–2 experienced Metin2 developers for a long-term paid project. Project: Custom Metin2 private server with unique systems (runes, custom drops, balance changes, PvE/PvP improvements). The goal is to build a stable, long-term server, not a quick copy-paste project. Requirements: Proven experience with Metin2 server core (C++) Experience with Metin2 client modifications (Python/UI) Ability to create custom systems (e.g. rune system, special bonuses, dungeon mechanics, drop systems) Bug fixing, optimization, performance improvements Good communication and reliability Nice to have: Previous work on known Metin2 private servers Experience with server security / basic anti-cheat Long-term availability What I offer: Paid cooperation (hourly or fi...

...Proficiency in Python (FastAPI/Flask) or Node.js. Front-end: JavaScript, HTML/CSS (React or Vue experience is a plus). Security: Knowledge of environment variables and secure API handling. Project Timeline & Budget Estimated Duration: I am looking for this to be completed in 2 to 3 weeks. Milestones: Payment will be released in stages: Successful connection to AI APIs (Back-end). Front-end chat UI implementation. Final testing and deployment. A Note for Freelancers: I am looking for an efficient integration using existing APIs. Please do not bid if you plan to over-complicate the project with unnecessary custom-trained models. I value clear communication, clean code, and security. Budget: CAD$250 The website itself is built in Laravel and vue.js...

...Native Speakers Required – Short Audio Recording Project We are currently expanding our contributor base for a voice data collection project and need native Malay speakers to participate. Participants will be asked to record 445 brief sentences using our official mobile application. The sentences are simple and designed for natural pronunciation. Native Malaysian speaker from Malay Access to an Android or iOS smartphone Ability to record in a quiet setting Clear and understandable speech Total items to record: 445 sentences Content type: Short and straightforward Platform: Recording app provided Estimated completion time: Around 30–45 minutes 8 USD for completing all 445 sentences. If you are interested in this project, please feel free to contact me. A Good O...

...packaged as native apps on both iOS and Android. The goal is a smooth, branded mobile experience that mirrors my current site’s catalogue and checkout flow while adding the engagement tools mobile users expect. Core functionality I need implemented: • User login & registration tied to my existing customer database • Product search with fast filtering and sorting • A secure payment gateway (the one used on the website, plus Apple Pay / Google Pay where possible) To boost retention and sales I also want: • Push notifications for promotions and order updates • Wishlist / favourites so shoppers can save items • Real-time order tracking inside the app • A lightweight social chat function so customers can ask questions withou...

...neutral, airy scheme built around soft grays. The end result should read as clean and minimalist rather than stark, with generous white space, understated typography and subtle accent tones that can be easily swapped once the definitive palette arrives. Here’s how I’d like us to proceed: • Deliver a compact style guide (typography hierarchy, gray scale, spacing and shadow rules) alongside a small UI kit covering headings, buttons, form inputs and icon treatments. • Apply that system to 3–5 representative desktop and mobile layouts so I can visualise the approach in context. Figma is preferred for easy hand-off. • Leave colour variables clearly labelled so, when I share the exact notes, updating is a quick pass instead of a rebuild. The ...

I want to launch an Android-only mobile application whose core purpose is blogging so I can share lessons and insights from my online classes with students. The must-have capabilities for this first release are a smooth post-publishing workflow (text, images, short videos) and built-in shareability that lets readers pass any article straight to their social-media apps with a single tap. You are free to choose the tech stack—Kotlin, Flutter, React Native, or any modern Android-friendly framework—as long as the final APK is stable on current versions of Android and the codebase is clean and well-documented. A lightweight backend or Firebase setup for storing posts is fine; I simply need to create, edit, and delete articles from an admin side and have them ...

I currently manage a website built for display management. It runs on a Linux server with an SQL database. Over time, the system has slowed down and is struggling to handle the increa...been completed in Figma. The platform synchronizes its main database with local databases on connected desktop workstations, and the new version must remain fully compatible with the existing desktop software to ensure seamless synchronization. There are three user roles: Super Admin, Admin, and User, each with specific permissions to manage or view different levels of content. In addition, the UI needs to be improved to make it more intuitive and user friendly, with the developer thinking from the end user's perspective, and existing system bugs must be identified and resolved as part of the...

I'm looking for a skilled developer to create a button map for my company's website. This is needed for the website company building my site. Ideal Skills and Experience: - Proficiency in web development - Experience with interactive maps or diagrams - Strong understanding of user interface (UI) design - Ability to collaborate with web design teams Please provide samples of similar work.

...for long term recording project. We are expanding our team for an ongoing voice collection project and are currently searching for native Brazilian Portuguese speakers. Participants will record 370 short sentences using our dedicated mobile app. The sentences are clear, simple, and require natural pronunciation only — no professional experience needed. Native speaker of Portuguese (Brazil) Android or iOS smartphone Quiet environment for recording Ability to follow basic guidelines Total: 370 brief sentences Duration: Approximately 30–45 minutes Platform: Recording completed in our app 5 USD for completing all 370 sentences. If you are interested in this project, please feel free to contact me. A Good Opportunity For New Freelancers For taking 5 Star Review afte...

I’m turning a concept into a working mobile application that runs natively on both iOS and Android. The very first milestone is to set up a clean, maintainable codebase and wire in secure email-and-password authentication. I’m flexible on the tech stack—whether you prefer Flutter, React Native, Kotlin Multiplatform, or another cross-platform framework—so long as the result feels native, performs smoothly, and can be extended easily. Deliverables • Single codebase compiling for iOS and Android • Onboarding flow: sign-up, sign-in, password reset, session persistence • Placeholder home/dashboard screen ready for future features • Well-commented code pushed to my private Git repo with clear build/run instructions I’ll...

...brackets or final summaries. Everything must run in a browser so I can open it from any laptop in the gym. I’m flexible on the tech stack—React or Vue paired with Node.js, Django, or Laravel and a SQL database makes sense as long as the code is clean, documented, and easy to deploy. An exportable data format and concise installation guide are part of the final hand-off. I’ll share detailed rules, UI sketches, and workflow diagrams once we connect. We can break the build into milestones for architecture, core engine, interface, testing, and deployment, with demonstrations at each step so I can verify registration, bracketing/seeding, match scheduling, score tracking, team scoring, and printing all work together. Show me examples of similar sports or event-mana...

...packaging + documentation support Our team will handle: - OpenSIPS / SBC (Call logic) - SIP infrastructure - APIs You will handle: - React Native SDK layer - Mobile VoIP calling integration - Native module bridging if required - Call UI handling - Stability + performance tuning --- ### Required Experience (Must Have) Do NOT apply if you don’t have these: - Strong React Native experience (3+ years) - VoIP or WebRTC calling integration - or similar SIP/WebRTC libraries - Push notifications for call flows - Background service handling (iOS + Android) - Native bridge modules experience - SDK development experience (not just apps) --- ### To Apply — Answer These 1. Have you built any VoIP or calling app? Share links 2. Have you worked with WebRTC or 3. H...

...audio. " Interactive addition card "When two number cards and an addition card is scanned by an Android app. The app should show the addition of two numbers. When scanned alone information of addition should be played. Information of card should be printed on backside in regional language. " Interactive subtraction card "When two number cards and a subtraction card is scanned by an Android app. The app should show the Subtraction of two numbers. When scanned alone information of subtraction should be played. Information of card should be printed on backside in regional language. " Interactive multiplication card When two number cards and a multiplication card is scanned by an Android app. The app should show the Multiplication ...

I’m building an MVP called SVS DriveMate using Thunkable. I need a designer + no-code builder to: Create logo, app icon, splash screen Design clean red-black UI Build Map (Google Maps + traffic), fuel calculator, expenses, SOS, reminders Store data locally or Airtable Test APK/IPA and guide publishing Budget: ₹25000 Timeline: 3–4 weeks Experience with Thunkable & Google Maps API required.

...with all screenshots attached or embedded What I Provide A detailed test script document with step-by-step instructions, seed data setup guide, and bug report template — no guesswork required APK access via Google Play Internal Testing (you must provide your Gmail address after agreement so I can add you to the testing group) Support via chat for any setup questions Requirements Android physical device running Android 10+ (emulators NOT accepted) Device must have a SIM card (SMS-related test cases require it) Experience with manual QA testing and writing clear bug reports Ability to take and attach screenshots Estimated effort: 4–5 hours Deliverables (All Required for Payment) ✅ Completed test script with every row filled (Actual Output + Status + Notes) ✅ Scr...

UI/UX Designer Needed for Social Media Startup (MVP) We are building an Innovation Networking Platform connecting Students, Entrepreneurs, Investors & Mentors. Looking for an experienced UI/UX Designer to design our MVP with scalable architecture for future growth. MVP Features (Must Design) • User Registration & Profiles (4 roles) • Social News Feed (posts, like, comment, share) • Connections & Messaging • Notifications • Groups & Events • Admin Panel • Profile Verification • Mentor Directory • Knowledge Library • Video/Audio Calls • Fundraising Module • Gamification Requirements • Modern, clean, mobile-first UI • Wireframes + High-fidelity design • Fi...

I am for an experienced MERN stack devel...for organizers (JWT-based) CRUD operations for events and RSVPs Responsive React frontend for a seamless user experience MongoDB backend for storing event and RSVP data Optional features: email notifications, real-time updates, simple analytics dashboard Requirements: Proven experience with MERN stack development Ability to build secure, production-ready APIs Experience with responsive UI/UX design using React Familiarity with email integration and basic analytics (preferred) Strong communication skills to provide updates and suggestions during development The goal is to create a minimal yet fully functional RSVP platform that is both technically robust and easy for users to navigate. The project should be scalable for fut...

I need a warm, intuitive Android-only mobile app that lets users enjoy seamless conversations with a “friendly chat partner.” The core of the build is real-time communication on three levels: • Text chat • Voice chat • Video chat Please code natively for Android (Java or Kotlin via Android Studio) so the experience feels fast and integrated. I’m happy to rely on proven back-end services such as Firebase for authentication and real-time text, and WebRTC or a comparable library for voice and video—feel free to suggest the stack you’re most comfortable with. Key goals – Clean, welcoming UI that encourages users to start chatting within seconds – Reliable connection handling to keep calls and mes...

UI Designer for a Puzzle game. You've to create designs in Figma replacing the existing UI. example: Send examples you've done

I want to launch a cohesive suite of AI-powered creation tools that runs smoothly in any modern browser and ships as a companion iOS/Android app. The platform will revolve around four core experiences: • Chatbot: A conversational assistant driven by a large language model (OpenAI GPT-4, Claude, or a comparable open-source model) with memory, retrieval-augmented generation, and an admin panel so I can refine prompts and monitor usage. • Image & Video Generator: Text-to-image and text-to-video pipelines using Stable Diffusion / Stable Video Diffusion (or a stronger alternative) with prompt weighting, negative prompts, and upscaling. • 3D Image Generator: Generation of glTF/OBJ assets ready for WebGL display, including basic texture baking. • AI-Assisted ...

I want to take my travel and tourism business online with a fully-functioning e-commerce website that sells tours and packages end-to-end. From branding and UX design right through to launch and post-launch tweaks, I need someone who can own the entire build. Core objectives • A slick storefront that showcases each tour or package with rich photos, itineraries, pricing tiers and real-time availability. • A seamless booking funnel: choose dates, collect traveller details, upsell add-ons, accept secure payments (credit card, PayPal, preferably local gateways too). • A back-office dashboard where I can create, edit and retire products, control inventory, view orders and export reports. • Mobile-first performance and fast page load times to keep travellers e...

I’m creating a Swift-based Sudoku app whose primary mission is to teach people how to crack puzzles rather than simply letting them play. I already have the general UI vision; what I need now is a developer who can write the underlying Sudoku engine and weave in an engaging learning layer. Core objectives • Generate valid Sudoku boards on demand, analyse the current grid in real time and expose every classic solving technique (singles, pairs, X-Wing, etc.) through a clean API. • Provide instructional modes—contextual hints & tips —triggered by the user’s choice or by their mistakes. • Cover the whole spectrum of difficulty: beginner, easy, intermediate, tough and devious. Internally I’d like five granular levels, so please make...

I need help with a technical issue on Linphone, integrated with FusionPBX. I’m on a custom-built version of Linphone. Current Problem: - Calls do not come through at all when the app is in the background Requirements: - Expertise in VoIP, FusionPBX, and Linphone, espec...on Linphone, integrated with FusionPBX. I’m on a custom-built version of Linphone. Current Problem: - Calls do not come through at all when the app is in the background Requirements: - Expertise in VoIP, FusionPBX, and Linphone, especially with custom builds - Proven experience with similar issues Ideal Skills: - Strong background in mobile VoIP applications - Familiarity with both iOS and Android systems - Ability to troubleshoot and resolve background operation issues Please only bid if you have ...

I’m ready to give my 27-language Paleo Hebrew Scriptures platform the visual and functional overhaul it deserves. The current interface feels dated, cluttered, and unintuitive; I want every reader—whether they open the English, Spanish, or Mandarin text—to enjoy a seamless, modern experience that invites deeper engagement with the content. Here’s what I need from you: • A new design system that celebrates the beauty of Paleo Hebrew while feeling universally familiar to readers from any culture • Responsive layouts for web and mobile that keep navigation effortless, even with our extensive language selector and multi-column scripture view • Thoughtful typography and color choices that ensure readability across long passages • Stream...

I’m rebuilding my Shop...it by extending an existing app or by coding a lightweight private app from scratch is up to you—as long as it works reliably, respects Shopify’s API limits, and keeps the admin dashboard clean. I’m open on timing; quality matters more than speed, and there’s no hard deadline. What will help me decide is seeing solid evidence of your Shopify experience, especially projects where you designed the UI and built (or adapted) custom features beyond basic theme tweaks. If you’ve already integrated third-party logistics, delivery modules, or anything comparable, point me to those examples. We’ll agree on milestones together—theme implementation first, custom delivery-agent workflow second, polish and QA last—a...

I’m ready to turn my online store idea into a full-featured mobile shopping experience that works flawlessly on both iOS and Android. The app’s single goal is clear: let customers browse products, purchase securely, and track their orders from their phone. Here’s what I need from you: • End-to-end mobile development (code, UI, and basic QA) for the two platforms • A clean product catalogue with search, filters, and a simple checkout flow • Integration with at least one mainstream payment gateway plus order confirmation e-mails/push notifications • Secure user account creation, sign-in, and profile management • Source code, build files, and brief hand-off documentation so I can maintain or extend the project later Feel free ...

...summarising daily intake versus goal, with simple colour coding for “under”, “on target”, or “over”. • Secure account storage and data sync across devices. If you prefer Flutter, React Native, or native stacks, let me know—performance and a clean UI/UX matter more to me than the specific toolkit. Please outline how you’ll structure the backend (e.g., Firebase, Supabase, or a custom REST/GraphQL API) and any third-party nutrition data sources you plan to integrate. Acceptance criteria will be: 1. A test build installable on iOS and Android that completes every flow above without crashing. 2. Source code pushed to a private repo with clear README instructions. 3. Brief hand-off call or video walkthrough summari...

This project is a college assignment: create a fully-functioning web application for selling men’s clothing, then demonstrate it running inside AI Studio. I already have the product catalogue content; what I need is the actual online store built and wired up. Core scope • Build the storefront UI so visitors can browse the men’s collection. • Each product page must offer dynamic size and colour selection that feeds straight into the cart logic. • Deploy and run everything inside AI Studio so I can present the project from a single, self-contained workspace (code, data and notebook if needed). Tech notes AI Studio can host standard web stacks, so feel free to work in React, Vue, plain Django templates, or another lightweight framework—jus...

We need a ready-made eCommerce store built on Bagisto. Requirements: Proper professional UI setup theme included Fully configured store standard pages created with content (Home, About Us, Contact, Terms & Conditions, Privacy Policy, etc.) Admin panel ready Complete source code included No customisation required – we only need a ready-to-launch store Please share: Live demo link Delivery timeline We are looking for the lowest bidder offering the best ready-made Bagisto-based eCommerce site. No customisation needed Only serious bidders with demo links should apply.

I need a clean, modern interface created in a flat-design style for several currently static pages, and I want a touch of life added through tasteful micro-animations. The pages are already laid out in wireframe form; what I’m missing is the polished visual layer and the subtle motion that guides the eye and makes the experience feel premium. Because of time-zone coordination and language familiarity, I’d love to work with someone based in Indonesia or Malaysia. If that’s you and you have a strong portfolio that shows crisp visual hierarchy plus small interactive details—think hover feedback, gentle scroll reveals, or quick page-to-page fades—then we’re likely a good fit. Core deliverables I’ll need: • High-fidelity flat-style mock-up...

...mobile devices, so the design must be mobile-first, highly responsive, and optimized for smaller screens while still looking clean and professional on desktop. We are looking for an experienced UI/UX designer with strong Figma skills to design a complete landing page and structured design system from scratch. We will provide visual inspiration (generated concepts), content, and reference websites. Your role is to transform those ideas into a clean, cohesive, professional interface. The initial scope includes designing: • Mobile-first landing page (with desktop version) • Hero section with clear call-to-action • Trust and credibility section • How-it-works section • Loan simulation UI component • Investor information sectio...

I’m ready to build a dedicated parcel-only delivery service and need a full mobile solution that runs smoothly on both iOS and Android. Core functionality must include: • Real-time driver and package tracking so users can watch their parcel move on the map • Push and in-app delivery notifications at each status change • Instant chat between customer, driver, and support to resolve issues on the spot A clean customer app, a driver app with route optimisation, and a simple web-based admin panel for order management will round out the system. Code should be written with future scalability in mind (React Native or Flutter are both fine) and integrate with standard mapping and push-notification services. Please outline your preferred tech stack, an estimat...

We are looking for a developer to build a small restaurant web application using React for the frontend and Node.js for the backend. The application will allow users to browse the restaurant ...order details in the database. After a successful order, an automated confirmation email must be sent to the customer using a third-party email service. The backend will handle order management, payment processing, and email integration, while the frontend should provide a clean and responsive user experience. The focus of this project is functionality and proper integration rather than complex UI design. This is a small, fixed-scope project with a limited budget, so the implementation should remain simple, clean, and extendable for future improvements such as an admin dashboard or d...

...mobile application that must run seamlessly on both iOS and Android from a single codebase. The core job is to own feature development end-to-end: architecting clean Dart code, wiring up real-time data flow, refining UI components for multiple screen sizes, then shipping fully tested builds to the App Store and Google Play. The project already has a high-level product roadmap; you will turn that vision into production-ready widgets, state management (Bloc or Provider is fine), secure API integrations, and smooth animations. Regular collaboration with our designer and back-end team happens in Slack and Jira, with code reviews in Git. I release milestones every two weeks, and each sprint should close with: • A compiled iOS and Android build (TestFlight / intern...

I need a SUPER SIMPLE job portal. Consider it as my side project. It won't be like other job portals , it will be one with much less friction. No need to build an ATS, just a portal where applicants will come and browse jobs, click on the job, that job opens up the job pr...details and click send for approval, and then I receive the application , if i approve they get link to payment, once payment is made, their job is up. if rejected, they get rejected email. Once posted, the employers must see basic info about the post including number of clicks and number of unique viewers. Just a few more such super simple features too. Important features: SEO optimized, beautiful ui (no animations), lightning fast, ability to handle many visitors at once. NEED HELP WITH DOMAIN, EMAIL H...

...high-performance, and high-contrast stage-ready UI (likely using JUCE or a custom OpenGL/vulkan-based skin). Code Standardization: Refactoring the existing codebase to industry standards (OOP best practices, memory safety, and thread-safe audio logic). Feature Polishing: Finalizing the implementation of parallel sequencing logic, complex audio editing functions, and our Python-based MIDI scripting API. Optimization: Ensuring the host remains low-latency and high-stability while hosting unlimited VST tracks and professional mastering chains. Requirements Expertise in C++: Strong understanding of modern C++ (17/20) and real-time audio thread constraints (lock-free programming). Audio Frameworks: Extensive experience with JUCE or equivalent audio frameworks. GUI Design for Mu...

I’ve got an existing functioning software that I want to upgrade my UI for. It’s a data provider company so the users search through records and perform various actions like taking notes or exporting data. My current design is functional but dated and not state of the art. This isn’t a new idea this, this is a functioning business and I need to hit a big home run and make this look like a million dollar interface for the users. Currently we don’t have an app but we do make the site mobile friendly for the users.

...rigorous quality assurance. This is an ongoing, weekly-paid position for a "Product-First" assistant who can ensure our user-facing and internal tools are performing at their peak. Key Responsibilities App Feature Feedback: Act as a "power user" to test new features from a user's perspective, providing clear documentation on any friction points or UI/UX issues. App Store Optimization (ASO): Manage and optimize our mobile store listings (iOS & Android). This includes keyword research, metadata updates, and monitoring rankings to increase organic downloads. Search Engine Optimization (SEO): Improve the visibility of our landing page. You will be responsible for on-page SEO, basic content updates, and ensuring the site ranks for relevant poke...

...and now need a complete UI/UX package that feels modern, intuitive, and conversion-focused on mobile. The core flows to cover are product search with smart filtering, a smooth shopping-cart and checkout sequence, plus user account areas for order tracking and profile management. The work starts with clarifying user personas and journeys, then moves into low-fidelity wireframes, high-fidelity visual designs, and finally an interactive prototype I can hand straight to developers. Figma is my preferred tool, but Sketch or Adobe XD are fine if you can export assets cleanly. Deliverables • User-flow map covering search, browse, product detail, cart, checkout, login/signup, and account dashboard • Full set of wireframes for each screen size we target (iOS and And...

...Use placeholder UI where needed; architecture, logic, and scalability matter more than visuals right now. The codebase is on Unity 2021 LTS with Addressables already in place. ScriptableObjects, event-driven architecture, and clean separation between runtime logic and data are a must so we can bolt on future features like unlockable rewards or leaderboard rankings without refactoring. Deliverables – Clean, commented C# scripts (namespaces and assembly defs) – Minimal UI hooks that surface XP, level-ups, and unlocked power-ups – Editor tools or ScriptableObjects that let a designer tweak XP curves and unlock tables without code changes – Integration guide or short Loom walkthrough showing how the meta layer plugs into the existing LevelMana...

Title: Senior Android Developer: Hybrid Computer Vision Pipeline (Local ML + Gemini API) Project Description: We are seeking a Senior Android Engineer to develop a modular, high-performance infrastructure for real-time video capture and analysis. The core of the project is a "Hybrid AI Routing Engine" that intelligently switches between on-device local processing and high-depth cloud analysis. This application is an R&D prototype that must be Play Store Ready, with a heavy focus on background stability, thermal management, and seamless connectivity transitions. Technical Specifications: 1. Camera Pipeline & Intelligent Routing: Implement CameraX to ensure maximum compatibility across various Android OEMs (Samsung, Pixel, Xiaomi, etc.). Develop a ...

...Females and 250 Males Speakers for long term recording project. We are currently onboarding additional freelancers for a short voice recording assignment and are seeking native Brazilian Portuguese (PT-BR) speakers. Record 370 short sentences using our secure mobile application. The sentences are simple and require clear, natural pronunciation. Native Portuguese speaker from Brazil Owns an Android or iOS smartphone Able to record in a quiet environment Can follow straightforward instructions 370 short lines to record Estimated completion time: 30–40 minutes Recording must be done through our provided app 5 USD for completing all 370 sentences. If you are interested in this project, please feel free to contact me. A Good Opportunity For New Freelancers For taking 5 St...

Spectrum Studios is hiring talented freelance designers for paid, project-based work. We’re looking for creative professionals skilled in brand identity, social media design, UI/UX, landing pages, or presentation design who can deliver clean, modern, and strategically aligned visuals. You should have a strong portfolio, solid command of Figma or Adobe tools, and the ability to meet deadlines consistently. If you’re detail-oriented, professional, and serious about high-quality design, we’d like to collaborate.

...bug related to money transfers and now want someone to debug and fix  problem happens when two or more transfers from the same source account run at the same time. Under concurrent load, the system sometimes allows the account to spend more money than it actually has (double‑spend). With normal, single requests everything appears to work fine: balance checks pass, transfers look correct, and the UI/API responses are OK. The bug only shows up with concurrent requests. 1. Expected behavior: • Balance checks should be safe even under concurrency. • If an account has a balance of 100 and two transfers of 70 run at the same time, at most one sho...

I need a skilled Android developer to create an e-commerce app. Essential features: - Product catalog: Comprehensive and user-friendly. - Payment gateway integration: Secure and seamless transactions. - User reviews: Section for customer feedback. Experience in developing e-commerce apps and expertise in payment integrations is ideal.

...support 3. Website – Delivery Cost Calculator & Booking Customers must be able to: Calculate delivery cost before booking Enter pickup & drop-off location (Google Maps integration) Select delivery type (standard, express, scheduled) View estimated delivery time Book delivery online Make payment online Receive booking confirmation Track delivery in real-time 4. Courier Mobile App (iOS & Android) The courier app must include: Secure login Online/Offline (Available/Unavailable toggle) Push notification alerts for new delivery requests Accept/Reject delivery Navigation integration (Google Maps/Waze) Delivery status updates (Arrived, Picked Up, Delivered) Earnings dashboard Delivery history Rating system Identity verification Performance statis...

I’m refreshing my GitHub profile for upcoming university applications and I need a concise, well-architected Django backend that illustrates how I approach data modelling, API design and clean code. Tech stack is fixed: Python 3.x with Django (latest LTS). Because this is a portfolio piece, clarity, documentation and sensible project structure matter more than production-grade scaling or DevOps extras. Scope of the system The app should let authenticated users track items in and out of stock and generate simple reports. I expect models for items, categories and basic stock movements, JWT or session-based authentication, and a small reporting module summarising current inventory levels and movement history. Deliverables • Django project and apps organised with reu...

...image processing, and notifications Storage S3-compatible object storage for images Infrastructure CDN integration (Cloudflare or similar) Docker-based deployment preferred Admin / CMS Custom admin dashboard for marketplace management Optional headless CMS (Statamic, Strapi, or Directus) for content pages TECHNICAL REQUIREMENTS Mobile-first responsive design Fast loading pages Clean UI/UX Secure authentication Image optimization Email notification system SEO-ready architecture Scalable backend structure DELIVERABLES Fully functional website Admin dashboard Seller dashboard Source code Database setup Deployment support Documentation NICE TO HAVE (OPTIONAL) Multi-language support Multi-curren...