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    1,500 java peer peer chat application source code u gjetën punë
    Write an Android application
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    Virtual Assistant: Application & Outreach
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    I need a proactive virtual assistant who can start each day with a quick morning video or voice call to align on priorities and report progress. Your foremost responsibility will be tracking every job application I submit across LinkedIn, Indeed and individual company websites updating status, noting follow-ups and keeping me informed of next steps so nothing slips through the cracks. Beyond application tracking, you’ll maintain light social-media marketing activity, handle personalised LinkedIn reach-outs, and place competitive bids or proposals on selected social platforms when relevant. Clear communication, reliable availability for the daily call, and meticulous record-keeping are non-negotiable. If you can keep my job search pipeline organised while driving stea...

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    10 ofertat

    I need purpose-built software that moves USDT from one wallet to another almost instantly and keeps a clear, tamp...any time. Those two capabilities—reliable wallet-to-wallet transfers and an internal log of every operation—are the absolute priorities. Price tracking and alert functions aren’t required for this first release; if you already have a lightweight way to fold them in, feel free to flag it as an optional add-on. Deliverables • Working executable or installable package • Full, well-commented source code • Usage guide covering setup, transfer steps, and history access • Short test report showing successful transfers and their logged entries I’ll respond quickly to questions or feedback requests so we can keep dev...

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    I want to bring a brand-new social networking experience to Android users. The core idea is a clean, modern mobile app where people can create profiles, follow others, share posts (text, images, short video), and chat one-to-one in real time. Smooth scrolling feeds, push notifications, and a simple onboarding flow are essential so adoption feels effortless from day one. Here is what I need from you: • Full Android codebase (Kotlin or Java) ready for Android Studio • Backend setup for user auth, real-time chat, feed storage, and push notifications (Firebase, Supabase, or a comparable stack) • Basic but attractive UI/UX that can be expanded later: light/dark themes, intuitive navigation, and accessible design • A signed APK plus clear instructi...

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    ESP32 Thermostat Control Bridge
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    ...circuit at the heater end - The two ESP32s communicate via ESP-NOW (Espressif peer-to-peer protocol — no WiFi router or broker required) What I need built and tested: 1. Sender unit — ESP32 dev board with a PC817 optocoupler circuit to safely read the 24VAC W/R signal on a GPIO pin, transmitting state changes via ESP-NOW 2. Receiver unit — ESP32 dev board with a 5V relay module, receiving ESP-NOW packets and switching the relay to close/open the W/R circuit at the heater board 3. Both units to include a heartbeat/watchdog: sender transmits a keepalive every 60 seconds; receiver opens the relay (fail-safe off) if no packet received for 2 minutes 4. Code written in Arduino IDE (C++), well commented, provided to me as source files 5. Both unit...

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    44 ofertat

    Saya ingin meningkatkan kualitas saya sebagai freelancer dengan cara membalas chat WhatsApp secara lebih cepat, jelas, dan profesional. Fokusnya khusus pada komunikasi dan pesan yang berkaitan dengan kegiatan sehari-hari klien maupun calon klien. Apa yang saya butuhkan: • Review singkat cara saya saat ini merespons chat WA. • Rekomendasi dan contoh template balasan yang sopan namun efisien untuk skenario umum (pertanyaan harga, follow-up pekerjaan, konfirmasi jadwal, dll.). • Panduan gaya bahasa agar selalu konsisten, ramah, dan tetap sesuai konteks Indonesia. • Tips praktis pengelolaan notifikasi, penandaan pesan penting, serta pengaturan waktu agar respons tidak terlambat. • Saran aplikasi pendukung (jika ada) yang bisa membantu otomasi bal...

    €641 Average bid
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    1 ofertat
    Android Delivery Tracking App
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    I want a single-platform Android application that lets me oversee every step of my delivery operations from dispatch to proof of drop-off. The driver will log in, see the day’s route that I either create manually in the admin panel or pull automatically from Tally invoices, and then follow turn-by-turn navigation while the app streams GPS coordinates in real time. Those coordinates should trigger automated SMS or WhatsApp updates to customers so they always know where their package is. At each stop the driver must scan the paper invoice with the phone camera or select an existing photo from the gallery—whichever is faster in the moment—and store that image alongside the delivery record. Once the parcel is handed over, a simple “Delivery Complete” tap f...

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    45 ofertat

    More details: What programming language is your code written in? Python What kind of adjustments are needed with the API communication? Fixing bugs What types of checks need to be adjusted or added? This question was skipped by the user

    €128 Average bid
    €128 Oferta mesatare
    32 ofertat

    I am looking for a graphic designer to create a modern, professional marketing piece for an automotive AI application called SmartAutoTech. I will provide a Word document containing a real chat conversation between an automotive technician and an AI diagnostic system. The goal is to visually present this conversation to clearly demonstrate the diagnostic process. The design should look and feel like a real chat interface (similar to iMessage or WhatsApp), with a clear distinction between the technician and the AI. It is very important that the AI’s formatting is preserved exactly as provided, including headings, bullet points, and structured diagnostic sections. Designers have flexibility in format (flyer, brochure, or other creative layout), but the final piec...

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    €34
    64 kandidaturat
    Application
    9 ditë left

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    €128 Average bid
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    1 ofertat
    Comprehensive Health Care App Suite
    6 ditë left
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    ...move securely between the web portal, the two mobile apps, and the database layer without duplication or loss. Technical expectations I am open to modern frameworks—React or Vue for the web front end, Swift/Objective-C and Kotlin/Java (or a cross-platform solution such as Flutter or React Native) for the mobile layer, and a scalable REST or GraphQL API behind it. Containerised deployment on AWS, Azure, or GCP with automated CI/CD, monitoring, and routine backups is essential so maintenance stays predictable. Key deliverables • Production-ready web application (health & social care focus) • Native or cross-platform apps for iOS and Android with identical feature sets • Secure, well-documented API and database schema • Automated clou...

    €7 / hr Average bid
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    37 ofertat

    Ich suche verlässliche deutschsprachige Unterstützung für meinen Live-Chat-Kundendienst. Deine Hauptaufgabe ist es, allgemeine Anfragen unserer Kunden freundlich und zügig zu beantworten. Was ich mir vorstelle: • Du bist Muttersprachler*in oder beherrschst Deutsch auf C2-Niveau. • Du hast bereits Erfahrung im Kundendienst und kennst die üblichen Chat-Tools. • Schnelle Reaktionszeiten, klare Antworten und ein professioneller Ton sind für dich selbstverständlich. So läuft die Zusammenarbeit ab: – Du erhältst Zugang zu unserem Live-Chat-System sowie kurzen FAQ-Leitfäden. – Während deiner Schicht kümmerst du dich ausschließlich um allgemeine Fragen; für technis...

    €402 Average bid
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    5 ofertat

    ...polished, academically sound research proposal that satisfies undergraduate requirements in the natural sciences. My goal is to submit a document the department will immediately approve, so clarity, proper structure, and strict adherence to scholarly conventions are crucial. The scope covers topic refinement (based on the general idea I will share), a concise literature review that cites recent peer-reviewed work, clearly stated aims and hypotheses, an appropriate methodology with data-collection plan, a realistic timeline, and a properly formatted reference list in APA style. I expect the argument to flow logically from background to proposed methods, with every claim supported by evidence drawn from reputable journals. Deliverables: • Complete proposal, about 2 500 words...

    €287 Average bid
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    36 ofertat

    Title: China Peptide Manufacturer Sourcer – Account Setup & Sample Order Project Description: I'm looking for someone with direct connections to legitimate peptide manufacturers in China to help me establish a direct ordering relationship. This is not a reseller or middleman project — I need access to actual manufacturers (not trading companies) that produce research-grade peptides. What I need from you: A verified list of legitimate peptide manufacturers in China with contact info, MOQs, and pricing — each backed by a verifiable listing, business license, or Made-in-China/Alibaba verified profile Confirmation that each manufacturer can provide third-party CoAs with every batch — if they can't, don't include them Account setup and registration wi...

    €151 Average bid
    I cilësuar
    €151 Oferta mesatare
    12 ofertat

    We are seeking a USPTO-registered patent attorney or experienced US patent professional to complete refinement and filing of a non-provisional patent application (Track One). Important: We already have a complete draft specification, figures, and supporting materials. This is NOT a from-scratch drafting project. Scope: • Review existing draft and figures • Refine and optimize patent claims (primary focus) • Strengthen Section 101 eligibility (software/blockchain positioning) • Align and finalize specification (minor adjustments only) • Prepare all required filing documents (ADS, abstract, declarations, etc.) • File the application with the USPTO under Track One prioritized examination Invention: Blockchain-based access control syst...

    €973 Average bid
    €973 Oferta mesatare
    10 ofertat

    Hiring n8n & WhatsApp Automation Developer (Chat Mitra + Razorpay) – Fixed Project

    €29 Average bid
    €29 Oferta mesatare
    12 ofertat

    Saya mencari seseorang yang bisa secara konsisten membalas chat pelanggan yang masuk ke akun WhatsApp bisnis saya. Fokus utamanya adalah menjaga hubungan dengan pelanggan—menanggapi sapaan, menindaklanjuti pertanyaan ringan, dan membuat mereka merasa diperhatikan sehingga mereka tetap loyal. Apa yang saya butuhkan: • Respons cepat dan sopan pada jam kerja yang telah kita sepakati. • Gaya bahasa ramah namun profesional, sesuai karakter brand. • Pencatatan singkat percakapan penting agar saya dapat menindaklanjuti kebutuhan pelanggan lebih lanjut. Anda boleh menggunakan WhatsApp Web atau aplikasi WhatsApp Business selama pesan tersampaikan tepat waktu. Jika pernah menangani customer service berbasis chat sebelumnya, beri tahu saya pengalaman dan pende...

    €15 / hr Average bid
    €15 / hr Oferta mesatare
    23 ofertat

    I need a skilled developer to build a multi-tenant SaaS application. The platform should include: Core Functionality: - User Management: Implement role-based access control, user activity logs, and profile customization. - Subscription Billing: Support annual subscriptions. - Analytics and Reporting: Provide detailed insights and reports. Ideal skills and experience: - Strong background in SaaS application development. - Expertise in user management systems and subscription billing integration. - Proficiency in analytics and reporting tools. Please provide examples of previous work and a timeline for project completion.

    €1658 Average bid
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    81 ofertat
    Develop UniHive Social Mini Program
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    ...perspective * Rapidly iterate MVP (Minimum Viable Product) to support early user growth * Integrate third-party services (authentication, cloud services, push notifications, etc.) * Support app store submission (App Store / Android markets) for name reservation and deployment ⸻ Requirements Must-have (Core Skills) * Proficiency in at least one major programming language (JavaScript / Python / Java / Swift / Kotlin) * Experience with web or mini program development (e.g., WeChat Mini Program, H5) * Understanding of basic full-stack architecture (APIs, databases, user systems) * Ability to independently build features with a 0→1 mindset Nice-to-have (Any of these is a plus) * Experience in mobile app development (iOS / Android / Flutter / React Native) * Experience build...

    €17 / hr Average bid
    €17 / hr Oferta mesatare
    155 ofertat

    I’m launching an e-commerce jewellery brand and need a sourcing expert who can quickly connect me with a reliable factory able to produce custom, waterproof necklaces at the lowest possible price point. My collection will include gold-plated, silver and stainless-steel pieces, so the manufacturer must already work with all three materials and guarantee long-lasting plating that will not tarnish with everyday wear. You will research, vet and present manufacturers—ideally in regions known for competitive unit costs—who can handle small initial MOQs yet scale up as the brand grows. I also need confirmation that they offer private-label packaging, assist with custom designs, and can ship globally. Deliverables (discrete and specific): • A shortlist of verified manufact...

    €14 Average bid
    €14 Oferta mesatare
    8 ofertat

    ...Play catalogue and need a flow of lightweight projects I can launch quickly. If you can deliver either a straightforward utility app or a casual, easy-to-pick-up game, I’m open to both paths. The key is that it must be fully store-ready: clean code, no policy violations, and attractive enough to earn downloads. Per finished project that meets the criteria below I can release ₹1,500 – ₹2,000, so feel free to pitch multiple ideas if you work fast. Deliverables • Signed release AAB or APK, ready for upload • Complete source code (Android Studio Java/Kotlin or Unity/C# are both fine) • Simple icon, screenshots, and a short store description • Confirmation that all assets are licence-free or originally created . Need to ...

    €15 Average bid
    €15 Oferta mesatare
    19 ofertat

    ...Alerts: If the device moves outside the defined fence, immediately activate the LED, buzzer, and/or vibration. Stop alerts automatically once the device returns within the fence. 3. Peer Notifications: Instantly send a short BLE advertising packet when a fence is breached, allowing nearby, pre-paired devices to react. Fast and reliable BLE advertising is the highest priority. 4. Low Power Operation: Maintain power efficiency similar to BLE beacons. // Application Layer: 5. Build the application on top of SoftDevice S132, or another suitable alternative if justified. 6. Provide well-commented source code, linker scripts, and a clear README explaining compile-time options, testing procedures for fence updates, breach events, and alert behavior. ...

    €455 Average bid
    MRS
    €455 Oferta mesatare
    31 ofertat

    ...Scope • Analyse the case study strictly through two lenses: Decision Trees (DT) and K-Nearest Neighbours (KNN). • Open the paper with a brief overview of machine learning, then introduce DT and KNN in turn, tying both back to the problem at hand. • For every question I list you must provide a detailed explanation, support it with at least one peer-reviewed journal citation, and illustrate the concept with a small Google Colab example (include code snippets plus screenshot images). • Conclude with a short synthesis of findings and any limitations. Style and Integrity No AI-generated passages, no copy-paste; paraphrase and reference properly in APA 7th edition style. Keep the tone academic but readable and limit the entire document to what ca...

    €32 / hr Average bid
    €32 / hr Oferta mesatare
    34 ofertat

    ...responsive UI as per Figma design Accurate calculation logic Proper error handling (divide by zero, invalid inputs, etc.) Important: I will provide the Figma design link after you request access Please review the design before finalizing your bid Requirements: Strong experience in Android development (Java/Kotlin) Experience building calculator or math-based apps (preferred) Ability to follow UI designs precisely Clean and optimized code Deliverables: Fully functional Android app Source code Proper testing to ensure accuracy Budget & Timeline: Please share your best price and estimated timeline after reviewing the Figma If you have built similar apps before, please share examples....

    €107 Average bid
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    78 ofertat

    Job Title: Android Java Developer (Camera, Image Processing, USB Integration) About the Role We are building a real-time vision application for a USB-connected glasses device. This role focuses on low-latency camera processing, Android performance optimization, and SDK integration — not AR/Unity development. Key Responsibilities Develop an Android (Java) application for a USB-C connected UVC camera device Display live camera feed in fullscreen on external glasses display Implement real-time image processing features: Zoom (1x–10x) with clarity preservation Contrast enhancement Brightness control Edge detection (outline mode) Color filter modes Integrate OCR + Text-to-Speech (TTS) for real-time text reading Build a minimal, responsive on-screen UI ...

    €297 Average bid
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    24 ofertat

    Hosszú távra keresek olyan kollégát, aki telefonon és chat-en is magabiztosan kezeli az ügyfeleket. A feladat egyszerű, de felelősségteljes: hívások és bejövő üzenetek fogadása, ügyfélkérdések megválaszolása, valamint rövid jegyzetek rögzítése a rendszerünkben. Amit kínálok • Stabil, kiszámítható munkamennyiség • Fix, kezdetben alacsonyabb, de teljesítmény alapján növekvő bér • Barátságos, támogató csapat és részletes betanítás Amit kérek • Megbízható, ...

    €13 - €21 / hr
    €13 - €21 / hr
    0 ofertat

    I’m seeking an experienced 3D specialist who can deliver highly realistic, high-poly object/prop models for a confidential assignment. Full creative and technical briefs will be shared after we sign a mutual NDA, but the work centres on a small set of precision-modelled items that must stand up to close-up scrutiny in stills and animation. My current pipeline favours ArchiCAD, so the ideal partner is fluent with that environment. If you’re stronger in Blender, Maya or 3ds Max, let me know—interoperability is possible as long as the final output retains the required polygon count, clean topology and physically-accurate scale. To move forward, please send: • A link to comparable high-poly prop work in your portfolio • Your primary software stack (note if you c...

    €109 Average bid
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    46 ofertat

    Saya mencari seseorang yang siap bal bal obrolan dapet uang—tugasnya sederhana: bal ngobrol wa dengan pengguna yang mengirim pesan secara acak dan menjaga percakapan tetap mengalir. Lingkup kerja: • seperti bales chat random—jawab setiap pesan WhatsApp dengan sopan, cepat, dan ramah. • Gunakan bahasa Indonesia santai tetapi tetap profesional. • Catat pertanyaan atau masukan penting dalam spreadsheet sederhana agar mudah saya pantau. Jam kerja fleksibel; yang penting respons sigap di jam yang sudah kita sepakati. Jika kamu terbiasa multitasking di ponsel dan menikmati mengobrol, ini peluang penghasilan lancar tanpa kerumitan.

    €10 / hr Average bid
    €10 / hr Oferta mesatare
    2 ofertat

    I want to line up reliable, export-ready manufacturers in India who can supply a full range of two-wheeler parts—engine components, suspension parts, brakes and clutches. The goal is to move quickly from short-listing factories to placing purchase orders, so I need someone already familiar with India’s automotive supply chain who can handle the leg-work on the ground. Your role covers locating qualified plants, securing quotations, confirming MOQs and lead times, arranging samples, and coordinating with shippers once orders are placed. If you have relationships with Tier-1 or Tier-2 factories, even better, but what matters most is proven experience sourcing mechanical or automotive components inside India. When you apply, highlight the sourcing projects you have managed, any ...

    €144 Average bid
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    2 ofertat

    Saya ingin meningkatkan kualitas saya sebagai freelancer dengan cara membalas chat WhatsApp secara lebih cepat, jelas, dan profesional. Fokusnya khusus pada komunikasi dan pesan yang berkaitan dengan kegiatan sehari-hari klien maupun calon klien. Apa yang saya butuhkan: • Review singkat cara saya saat ini merespons chat WA. • Rekomendasi dan contoh template balasan yang sopan namun efisien untuk skenario umum (pertanyaan harga, follow-up pekerjaan, konfirmasi jadwal, dll.). • Panduan gaya bahasa agar selalu konsisten, ramah, dan tetap sesuai konteks Indonesia. • Tips praktis pengelolaan notifikasi, penandaan pesan penting, serta pengaturan waktu agar respons tidak terlambat. • Saran aplikasi pendukung (jika ada) yang bisa membantu otomasi bal...

    €35238 Average bid
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    4 ofertat

    Saya membutuhkan seorang asisten yang dapat mengambil alih tugas membalas chat WhatsApp untuk keperluan komunikasi personal sehari-hari. Fokus utamanya adalah menjaga percakapan tetap hangat, responsif, dan natural—bukan penjualan atau layanan pelanggan. Ruang lingkup tugas: • Memantau dan merespons pesan WhatsApp saya sepanjang hari pada jam yang kita sepakati. • Meniru gaya bicara santai saya agar teman, kerabat, atau rekan merasa tetap berbicara langsung dengan saya. • Menyaring pesan penting dan menandai obrolan yang memerlukan perhatian pribadi saya. • Menyusun ringkasan harian singkat tentang percakapan penting atau tindakan lanjutan yang perlu saya lakukan. Kualifikasi yang saya cari: • Lancar berbahasa Indonesia informal dan sop...

    €31608 Average bid
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    2 ofertat
    Long-Term Backend API Developer
    6 ditë left
    Të verifikuara

    ...the next several months. The immediate need is to design and implement RESTful APIs that handle user authentication and authorization, data retrieval/manipulation, and a handful of third-party integrations. Most of our existing micro-services are written in Python and Java, with a few high-performance components in Go, so the more comfortable you are jumping between those languages the better. You’ll be expected to: • Draft an endpoint specification we can review together. • Build the services in clean, idiomatic Python, Java, or Go (your choice per module), following REST best practices. • Wire in secure auth (JWT, OAuth2, or similar) and role-based access control. • Integrate external services where required, shielding the core logic behi...

    €11 / hr Average bid
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    322 ofertat

    Project Details 1. Project Overview(Backend Microservices System (SPRING FRAMEWORK ONLY)) We are developing a large-scale, enterprise-level digital commerce platform on a Java-based microservices architecture (Spring Ecosystem). The development phase is "LARGELY COMPLETED". We are not looking for a builder to start from scratch, but rather a "finisher"—a skilled Backend Engineer to take ownership of the existing codebase. The primary goal is to validate current integrations, stabilize the logic, and ensure the system is production-ready through rigorous testing. WE WILL PROVIDE TESTING HELP FROM OUR SIDE TOO. 2. Current Project Status & Scope The following microservices have been developed. Your role is to ensure these services communicate seamlessly,...

    €91 Average bid
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    8 ofertat

    ...science journal with a large readership. Any journal with a large readership will do, it doesn’t have to be the most reputable one. 2. Reformat the three papers into a form suitable for submission. Rewrite the abstract, conclusions, references, and fix the font, paragraph layout, number of figures, figure placement and figure titles to conform to the journal’s submission standards. Find peers for peer review if necessary. 3. Submit the papers. A quick check with me before submission. Topic. I’ve called these three papers “Banishing divergence” Part 1 to Part 3. The first two parts have already been accepted by ArXiv. The third part has been rejected by ArXiv, possibly because of poor quality references or extravagant claims in the abstract. The ce...

    €321 Average bid
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    28 ofertat