Gestão de Banco de Dados Jobs

Minha plataforma já está cerca de 85 % concluída. O que preciso agora é de um(a) profissional que entre, revise o que foi desenvolvido, ajuste eventuais inconsistências e coloque tudo para rodar de forma estável. Principais frentes de trabalho • Testes funcionais, de usabilidade e de desempenho: quero garantir que cada fluxo opere sem erros, ofereça boa experiência ao usuário e mantenha performance aceitável mesmo sob carga. • Criação e acoplamento de uma pequena API de bancos voltada exclusivamente para integração de pagamento — nada de consulta de saldo ou histórico, apenas processar cobranças de forma segura. Entrego acesso ao repositório Git, &agrav...

I am ready to launch a subscription-based mobile learning platform and need a developer who can deliver a polished, secure app on both iOS and Android. The core of the product is on-demand video playback, so smooth streaming, adaptive quality, and reliable buffering are essential. Every user flow must be protected with two-factor authentication to keep accounts safe and to reassure corporate clients that their learners’ data is fully secured. The commercial model is subscription only. I will rely on native in-app purchases through Apple and Google as well as promo-code support for bulk enterprise sales, so the purchase flow, renewal handling, and failed-payment recovery all have to be iron-clad. On the back end I need an admin panel where I can upload videos, assign them to courses,...

I need a web-based school management system that brings our daily academic and administrative tasks into one place. The build must cover three core modules from day one: • Student Information • Attendance Tracking • Gradebook Each module should share a clean, role-based interface so staff, teachers, students, and guardians only see what they need. Data has to stay in sync in real time and export cleanly to CSV or PDF. Communication is equally important. The platform must plug into standard email and SMS gateways while supporting in-app messaging so teachers can reach parents or students without leaving the system: • Email notifications (automatic and manual) • SMS alerts for time-sensitive updates (absences, announcements) • Secure in-app messagi...

I need an organized individual to review and update my 5000 contacts and add new contacts as they come in with notes. The initial work will be supported by me to help focus/delete certain contacts. Eventually will want regular support, probably monthly to update the latest contacts. Key Tasks: - Validate existing contacts - Find new positions/companies for outdated contacts - Update spreadsheet/contact card - Capture new business cards with notes - Enter new contacts into Apple database Ideal Skills & Experience: - Proficiency with Apple & Outlook Contacts - Strong attention to detail - Experience managing and organizing databases - Ability to provide a detailed project proposal, how will you go about validating the contact, find new details if required, not use too much time on...

I am looking to do a full re-write of our existing web application. Currently is it running an older version of Extjs, php, and html5 viewer. I would like to explore options to either upgrade existing stack or completely move to a newer more modern stack. Security and HIPPA aware audit logging is mandatory Maintaining existing features and functions are a must. Increased security. Long term ease of updating and maintenance important as well. Cosmetic updates to UI as well from older extjs to a UI with a clean, clinical-yet-modern aesthetic. (see current and sample(idea) for new UI. Current system has: User administration - Users - typical with option to allow/restrict functions Groups - To add users to g...

My Joomla site at is still online, but I can no longer log in to the administrator area—Joomla simply returns the full front end of the website. The front-end remains functional, so the files and database are intact. I do have full cPanel and phpMyAdmin access on the GoDaddy server and I have already started downloading the 24 GB backup. What I need first and foremost is to regain administrator access. I’m not certain how to reset the Super User password through phpMyAdmin or via the configuration file, so please handle that step for me or walk me through it live. Once access is restored, I’d like guidance on the safest workflow for updating several pages—whether that means taking the site offline temporarily or working on a local copy. I’m open to whic...

App Name: ManPower Pro Platform: Android Purpose: Manpower supply business ke liye worker management app — 500+ workers, multiple supervisors. Users: Owner (Main) — sab kuch dekhe, edit kare, lock/unlock kare Supervisor — sirf attendance bhar sake, payment na dikhe Features: 1. Login System Owner alag login Supervisor alag login — Owner approve kare tabhi andar aaye Owner door se real-time dekhe 2. Worker Management Worker add karo — Naam, Trade, Phone Skilled / Unskilled category ESIC aur PF toggle 3. Monthly Attendance Grid Poore mahine ka grid — 1 se 31 tak Present/Absent mark karo Sunday highlight 4. Lock System Din wise lock — us din ki attendance lock ho jaye Month wise lock — poora mahina lock Sirf Owner PIN se unlock ho sake 5. Paymen...

This project focuses on managing and organizing business and customer data accurately using Microsoft Excel and Google Sheets. The main objective is to collect, clean, format, and maintain large amounts of data efficiently while ensuring accuracy and confidentiality. The project includes tasks such as: * Data entry and data formatting * Excel spreadsheet management * Copy-paste and typing work * Data cleaning and validation * PDF to Excel/Word conversion * Customer and employee database management * Creating reports, charts, and summaries * Using Excel formulas like VLOOKUP, IF, SUM, FILTER, and Pivot Tables * Maintaining records with 100% accuracy This project helps businesses save time, improve productivity, and keep their records organized for better decision-making. ## Skills Used ...

My 9D VR Egg Chair arcade setup has suddenly lost its ability to play any of the installed movies and the main controller PC can no longer be located on the local network. Both issues appeared at the exact same time, and no one here is aware of any recent updates or changes that might explain the failure. The motion hardware still powers up fine, so I’m convinced the problem sits in Windows, the Chinese VR-launcher software, or the share/database path that feeds the headset content. I need an experienced technician who has already dealt with VR simulators, motion platforms or similar arcade cabinets to jump in remotely and get the show running again. You’ll be given an active AnyDesk session (TeamViewer could be arranged if that is absolutely required). From there I expec...

I’m looking for a developer (or team) who can deliver a polished mobile application that keeps our college community connected on both Android and iOS. The app must cover the full spectrum of day-to-day academic life while remaining fast, intuitive, and easy on the eyes. Core modules and functions • Secure student registration and login • Comprehensive college section with detailed data: history, departments, faculty bios, research opportunities, and ongoing announcements • Role-based content management for Admin, Faculty, and Students • Course and subject listings tied to individual user profiles • Faculty directory with photos, qualifications, and contact options • Student profile dashboard with attendance tracking and grade/assignment snap...

I am moving everything that currently runs under to a fresh production environment and I need an experienced engineer to take the lead on the entire move. The scope covers four main layers: the P2P signalling server, the SFU media server, the Supabase database, and the general app server. Your first task will be to replicate each service in the new cloud account, configure secure networking, then run a controlled cut-over from the legacy hosts. Once traffic is flowing, we will work together to fine-tune the P2P server, the SFU server, and the Supabase database so they perform reliably under real-world load. Typical work will include: • Clean installs of the P2P and SFU stacks (we can decide together whether to keep the existing stack or upgrade to a newer build). • Full Sup...

I need an ERP system focused on inventory management. The system must include: - Stock Tracking: Real-time visibility of stock levels. - Order Management: Streamlined processing of orders. - Warehouse Management: Efficient organization and movement within warehouses. The preferred platform is BEMET. Ideal skills and experience: - Expertise in developing ERP systems, particularly on BEMET. - Strong background in inventory management modules. - Experience with stock tracking, order and warehouse management functionalities. Looking for a developer who can deliver a robust, scalable solution tailored to my needs.

I need an end-to-end implementation that gets my web app production-ready. This includes spinning up a fresh Supabase project, wiring in secure authentication, and making sure real-time video features run flawlessly in both development and live environments. Here’s what I want accomplished: • Create a brand-new Supabase instance, configure tables, policies, and storage, then connect it to my existing codebase. • Enable Google Auth alongside passwordless OTP sign-in/sign-up, testing every edge case so users experience zero friction. • Integrate VideoSDK for real-time calls, synchronising session data with Supabase and confirming it works behind authenticated routes. • Establish clean environment variables and separate configs for dev vs. production, with sc...

ONLY FREELANCERS NO COMAPNIES Hi, I have an old .NET desktop application (around 8–9 years old) which runs as a small EXE and currently uses SQL Server Compact Edition database. We need to make some modifications: 1) Migrate the existing SQL Server Compact Edition database to a modern database system. 2) Offline-First Architecture with Auto Sync: The application should continue working offline. When internet is available, backup/offline entries should automatically sync to the main database/server. 3) The software currently has a 1-year expiry key/license system already implemented we need to change few thing here only small changes. 4) some small changes to our exe application. Please let me know: Your experience with old .NET WinForms/WPF applications

I’m looking for an experienced Laravel developer to update an existing Laravel source codebase that is currently live on the network. Requirements: Strong Laravel/PHP experience Ability to work on live source code safely Must be available to start immediately Budget: $30 Please apply only if you are available now and comfortable working within the stated budget.

Busco desarrollar un sistema que centralice todas las operaciones de mi taller mecánico. La prioridad es el seguimiento de reparaciones y servicios: quiero visualizar el estado de cada vehículo, las tareas pendientes, fotografías, piezas solicitadas y el historial de mano de obra desde que ingresa hasta que se entrega. Necesito, además, que las citas y reservas puedan gestionarse tanto desde una interfaz web responsive como desde una aplicación móvil sencilla para iOS y Android. Quiero que los clientes puedan elegir fecha, describir el problema y recibir confirmaciones automáticas por correo o notificación push. El módulo de informes debe generar, al menos, los siguientes documentos descargables en PDF o Excel: • His...

Necesito avanzar desde mi actual instalación de Microsoft Dynamics NAV 2017 on-premise hasta Business Central SaaS y, sobre todo, llevarme todos los objetos que hoy hacen que el sistema funcione a mi medida. Hablamos de tablas y campos, páginas, formularios, informes y consultas: absolutamente todo el código personalizado que hemos creado con C/AL a lo largo de los años. Tenemos bastantes desarrollos propios, de modo que el reto principal será convertir esa base a extensiones AL compatibles con la última versión de Business Central en la nube, garantizar que compilen sin errores y validar que cada proceso siga operando como antes. Lo que espero recibir: • Un paquete de extensiones AL que contenga la conversión completa de lo...

HubSpot CRM Specialists We are seeking an experienced HubSpot CRM specialist to set up HubSpot account. This project involves a comprehensive CRM setup, including custom pipeline creation, database imports, automated email sequence development. Scope of Work The successful freelancer will be responsible for the following: 1. HubSpot CRM Configuration Pipeline Creation: Design and implement 5 custom pipelines within HubSpot. These pipelines must be tailored to manage partner onboarding from initial contact to signed Tracking: From introduction to subscription. Fee Waiver Management: Tracking fee waiver eligibility and application based on successful referrals. Content Onboarding & Live Status: Tracking content delivery, airline review, and go-live dates. 2 Deal Stages: Define and ...

Job Title: GCC Jewelry Retailer Decision Maker Database Collection Description: We are looking for an experienced data research freelancer to collect a high-quality database of jewelry retailers across: - UAE - Qatar - Bahrain - Kuwait The focus should be on collecting direct decision-maker contacts from jewelry retail businesses. Required Contacts: - Owners - Founders - Directors - Decision Makers - Inventory Heads - Operations Managers - Technical Team Contacts Required Data Fields: - Company Name - Contact Person Name - Designation - Direct Mobile Number - WhatsApp Number (if available) - Email Address - City/Country - Website - LinkedIn Profile (if available) Important Requirements: - Direct owner/decision-maker numbers are mandatory - Generic business contact numbers are not...

Developer Needed – Lean MVP Build for Marketplace Startup (Circulate) Project Overview I’m building a startup called Circulate. Circulate is a local marketplace platform where users trade goods and services using an internal credit wallet system instead of cash. Think: Facebook Marketplace + OfferUp + a credit-based barter marketplace The goal is a lean but functional MVP to prove the concept to users and investors—not a bloated enterprise build. I want to use existing integrations/services wherever practical to keep development time and costs low. ________________________________________ Core Concept Users trade using internal platform credits instead of cash. Rules: • every user starts at 0 credits • users can spend down to a controlled negative balance (exam...

am looking for someone to create a professional digital check in system for my student workers/work study students. Currently, we manually track attendance, but I would like to move to a QR code based system using Jotform or a similar platform. What I need: • Students should be able to scan a QR code when they arrive • The form should collect: • Student name • Check in and check out time • Department or office location • Automatic timestamps for submissions • Responses connected to Google Sheets or Excel for tracking hours • Mobile friendly design • Simple and professional layout Bonus features if possible: • Automatic hour calculations • Admin dashboard to review attendance • Ability to export reports • Kiosk/iPad mode f...

I produce audio for my radio show called Essential Dissent, and upload it to a website called , aka the a-Infos Radio Project. The website is a media interchange site, IOW producers upload audio, and end users (radio stations, etc) can then download it for free, with the idea that they will use it for broadcast. So far so good. But radio4all does not require downloaders to reveal their identity, and although I ask that users do, almost no one does. Consequently I have almost no idea as to which radio stations are airing my audio. My project is an attempt to get them to tell me who they are. Radio4all has no way to facilitate this, and for philosophical reasons will not make the coding changes necessary to require users to identify themselves. But radio4all allows me to upload my audio t...

I need a detail-oriented freelancer to manually import 1,000 games into our gaming app's admin panel. What the job involves: The app already has a built-in API integration that automatically pulls all game data — title, platform, cover image, description, and more. Your only task is to log into the admin panel, search or browse for each game from the provided list, and click "Add" to import it into the database. That's it. No technical knowledge required. The interface is straightforward and the data is pre-fetched by the API — you're not entering anything manually. Estimated workload: ~1,000 games total Roughly 2–3 games per minute Estimated time: 6–8 hours total What I'll provide: Full list of 1,000 games (organized and ready) Admin p...

I need a clean, genuinely sourced database containing one million C-suite contacts (CEO, CFO or President) from companies located anywhere in the United States. Minimum data required for every record • Executive’s full name • Direct email address Phone numbers, postal addresses or other fields are welcome if you already have them, but they are not mandatory. What matters most is email accuracy and volume. Quality expectations • No purchased “one-click” dumps—records must be recently verified and able to pass a standard email verifier such as NeverBounce, ZeroBounce or a similar tool. • Duplicates across the file must be removed. • Invalid/bounced emails must stay well below industry norms. Delivery format • CSV o...

Statement of Work Milestone 4 - PHASE 1 — IEP SaaS MVP Complete Project: IEP SaaS MVP Project Overview The existing IEP SaaS MVP Event Planner has the core frontend and backend components implemented. This SOW is focused on finalizing features, stabilizing and preparing IEP SaaS MVP for demo and launch. Effective Date: ASAP Due Date: May 16, 2026 Duration: 10 - 15 hours Fixed Rate: $350.00 Independent Contractor Experience Requirements Full Stack Developer with 6 - 10 years of experience using Lovable/Vercel Frontend UI framework (visual editor, JavaScript, CSS); Very Strong Supabase + Postres + Auth + Row Level Security repository, GitHub and Resend knowledge; MVP startup experience (very important); Comfortable working with pre-existing codebase framework; Cl...

Website design. Upon initially setting up an account, we need to do a pre-approval loan process, it can simply be what rent to own centers or first franklin type lenders have. These loans will only be for financing transmission jobs done at local mechanic shops. 25% interest charged for either 12 month, 18 month, or 24 month terms only. ACH draft is required for payments which will need to be setup on the website. ( is a great example - click on "apply now" button to see this pre-approval process set of questions). Then this info is sent to one of our "loan approval officers" email accounts to finish getting them signed up in person at the shop when they check out to pay for their bill. Webpage will need to have account login/password feature where customers can cre...

Here's a Freelancer.com project posting ready to use. I've followed your standard Freelancer.com format with the acknowledgment message, English requirement, and future work note. Project Title: Build a 27-Page Notion Template for Home-Based Bakers (Detailed Spec Provided) Project Description: I'm looking for an experienced Notion template designer to build a comprehensive 27-page Notion template that I will sell on Etsy. This is a complete business operating system for home-based bakers, including 13 interconnected databases and 14 content pages. Please start your proposal with the word "BUTTERCREAM" so I know you read this description in full. Proposals without this word will be ignored. You must have strong English comprehension, as the spec document contains ...

I'm seeking an experienced SQL database specialist to debug my current database. Ideal Skills and Experience: - Proficiency in SQL and experience with MySQL, PostgreSQL, or Microsoft SQL Server - Strong problem-solving skills - Experience with database performance tuning and error resolution - Ability to work efficiently and communicate effectively Please provide your experience and approach to debugging SQL databases.

My Laravel-based shop is already pushing orders into Amicron, yet every import ends up tying the order to the wrong customer. The mismatch is isolated to customer information—specifically the customer ID—while product lines and amounts look fine. I need someone who knows both Laravel (PHP 8) and Amicron’s import interface well enough to: • trace the current mapping logic, • correct the field assignment for customer IDs, and • validate the fix by running test orders on our staging copy of Amicron. The work is finished when a new order placed in Laravel lands in Amicron with the exact customer ID we see in the shop database, no manual corrections required. Access to the Git repo and a staging Amicron DB will be provided as soon as we agree on the ...

Benim bir inşaat firmam var ve tüm hesap kitap işlerimi kağıt kalemden veya karışık Excel tablolarından kurtarıp, cebimde ve bilgisayarımda taşıyabileceğim çok güvenli bir sistem istiyorum. İşte uygulamanın yapacağı her şey:" 1. Güvenlik: "Benim Cüzdanım Gibi Olacak" Uygulama açılırken şifre isteyecek veya parmak izimi/yüzümü okuyacak. En önemli konu: İnternet asla gerekmesin. Şantiyenin bodrum katında bile telefon çekmese dahi her şeye bakabilmeliyim ve veri girebilmeliyim. Bütün bilgiler benim telefonumda/bilgisayarımda kalsın, buluta falan yüklenmesin. 2. İnşaat Planı: "Apartmanı Gözümün Önüne Getirecek" Önce inşaat projelerimi (Örn: Laçin Apart...

Benim bir inşaat firmam var ve tüm hesap kitap işlerimi kağıt kalemden veya karışık Excel tablolarından kurtarıp, cebimde ve bilgisayarımda taşıyabileceğim çok güvenli bir sistem istiyorum. İşte uygulamanın yapacağı her şey:" 1. Güvenlik: "Benim Cüzdanım Gibi Olacak" Uygulama açılırken şifre isteyecek veya parmak izimi/yüzümü okuyacak. En önemli konu: İnternet asla gerekmesin. Şantiyenin bodrum katında bile telefon çekmese dahi her şeye bakabilmeliyim ve veri girebilmeliyim. Bütün bilgiler benim telefonumda/bilgisayarımda kalsın, buluta falan yüklenmesin. 2. İnşaat Planı: "Apartmanı Gözümün Önüne Getirecek" Önce inşaat projelerimi (Örn: Laçin Apart...

I'm looking for an experienced mobile app developer to create a social networking app available on both iOS and Android platforms. Key Requirements: - Design and develop a user-friendly interface. - Implement robust social networking features (e.g., profiles, feeds, messaging). - Ensure high performance and responsiveness. - Integrate security measures to protect user data. - Collaborate with me throughout the project for updates and feedback. Ideal Skills and Experience: - Proven experience in developing social networking apps. - Proficiency in both iOS and Android development. - Strong knowledge of UI/UX design principles. - Experience with backend development and database management. - Excellent communication skills. Please share your portfolio and relevant project experience.

Make a professional banking app in Microsoft access format. Currency preferably in (K) Zambian kwacha It should be able to collect customer, account, and transaction details e.g. bank statements, loan details.

I have a fully-functional SQL Server database that currently sits as separate MDF and LDF files. My only goal is to turn this live set into a single, clean .BAK file that I can archive safely for future use. You can remote in or guide me through the process—whatever gets the job done quickly and without data loss. I’m not entirely sure which exact SQL Server build we’re on, so please be prepared to confirm the version first and choose the right commands or GUI path accordingly (BACKUP DATABASE, SQL Server Management Studio, sqlcmd, etc.). Deliverables • Verified .BAK file created from my MDF/LDF pair • Brief note or screen-grabbed steps so I can reproduce the backup next time That’s all there is to it—speed, accuracy, and clear instruc...

I need a Bubble.io-based website that connects seamlessly with the LINE Messaging API to create an engaging, student-friendly learning environment. The core purpose is to enhance learning for pupils, so every page, workflow, and LINE interaction must serve that objective. Here is what I have in mind: • Platform build: Use to craft a responsive website where pupils can log in through LINE, receive personalised content, and track progress. • LINE integration: When a student sends a message on LINE, the data should flow into Bubble, trigger the right workflow, and respond back with dynamic content. • Interactive layer: I will supply a detailed instruction plan outlining the learning content other activities. Your job is to translate that plan into working Bubble componen...

I’m ready to launch an online store and need a developer who can take the entire build from concept to a polished, user-friendly release. The core requirement is a robust product catalogue equipped with fast search and intuitive filters so shoppers can narrow results by category, price, and other attributes without friction. The overall flow should feel familiar to modern shoppers—clean grid or list views, quick-view pop-ups, and seamless page transitions—yet be light enough to perform well on both desktop and mobile. I have branding, imagery, and initial product data prepared; you’ll handle everything else, from installing the e-commerce framework of your choice (Shopify, WooCommerce, custom Laravel, etc.) to configuring databases, templating the front end, and en...

I created an app using AI vibe coding. This online app/portal is for managing the event staffing offered by my events management company. This app lets admins easily manage staff, staff can easily create profiles, and clients can easily view shared staff, make decisions, and make payments. I can no longer use this AI app for modifications in the code. The code is in React. I need someone who can make these few changes and modifications: 1. Integrate WhatsApp for staff number verification and for the admin to send event inquiries to staff on WhatsApp. 2. In the staff registration steps, add the database of countries and cities for the staff to select which cities they are available to work in. 3. Increase the logo size on the landing page. 4. Set up the database for this app on Ho...

Χρειάζομαι ολοκληρωμένη διασύνδεση του ημερολογίου κρατήσεων που διαχειριζόμαστε μέσω Exely PMS με το myDATA της ΑΑΔΕ. Τι ζητώ να υλοποιηθεί • Αυτόματη καταχώρηση &a...

I am looking for a single experienced full stack developer to build an internal workforce and operations management application for my company. The app will initially be used only internally by our own team and is focused on mobile field workers in property management, facility service and concierge operations. I have already built and structured around 70% of the concept and workflow logic inside Base44, including user flows, features, operational structure and app behavior. I am now looking for a developer who can professionally turn this concept into a real working application and further improve and optimize the system together with me. The system should combine: • Mobile time tracking • Geofencing and GPS based customer recognition • Task and material tracki...

I need an experienced freelance HR recruiter to help me close a senior-level Compliance Officer position for a finance-sector employer in the United States. Here’s what the assignment involves: • Source and attract qualified Compliance Officer candidates with solid finance backgrounds and U.S. work authorization. • Screen resumes, run first-round behavioral and technical interviews, and evaluate cultural fit. • Present a concise shortlist with your interview notes and compensation expectations. • Coordinate subsequent interview rounds between the candidate and our hiring team, keeping everyone updated on status until the offer is accepted. A proven track record filling senior finance roles in the U.S. market is essential, along with familiarity with ...

Project Overview: We need a cross-platform mobile app (Flutter/React Native) for a gift card and utility services business. The app will include a robust "Points/Coins" ecosystem and a comprehensive Admin Panel for management. Updated Key Features: 1. Services & API Integration: Gift Cards: API-based sourcing; display card codes/passwords to users. Mobile Recharges: Integration via API. Crucial: Users must be able to pay for recharges using their earned Reward Points/Coins. Loan & Insurance: Forms for loan applications and a display section for accidental insurance details. 2. Advanced Rewards & Milestones: Milestone Benefits: System to track spending and reward users. Example: Spend ₹1 Lakh in 1-2 months to unlock specific physical gifts (displayed in the app). Tiere...

PROJECT: Brain Bee Web-Mobile App ABOUT BRAIN BEE: Brain Bee is a comprehensive educational platform designed to make learning engaging and interactive. This fully developed web and mobile application delivers a seamless learning experience across all devices. KEY FEATURES: • Interactive quiz modules with instant feedback • User authentication and personalized profiles • Real-time progress tracking and analytics • Achievement badges and gamification • Responsive web interface • Native mobile apps (iOS/Android) • Social leaderboards • Admin content management system • Cross-platform data synchronization TECH STACK: • Frontend: React (Web) & React Native (Mobile) • Backend: Node.js/Express • Database: PostgreSQL • APIs: ...

My site is essentially complete, but the last mile is proving tricky: I still need the voice-AI flow built with Retellai and Twilio to drop confirmed calls into the site’s own calendar without ever creating a double-booking. Here’s the current state: • The calendar is a custom module inside the website—not Google, Outlook, or Apple. • Calls come in through Twilio, pass to the AI, and are supposed to reserve an open slot. • Availability isn’t checked correctly, so two clients can land on the same time. What I need now is straightforward but critical. The Twilio webhook (or a Retellai function, I’m flexible) must query the in-house calendar before offering times, lock the chosen slot atomically, and write the booking back immediately so subseque...

Project Overview: We have a live application on the App Store and we need an expert to implement a sophisticated "User Support/Donation System" using PayPal Business API. Technical Requirements: 1. Database Linking & Context: • Implement logic to track transactions in the backend: linking (User A) to (User B) and the specific (Post/Media ID). • Ensure the database accurately records who supported whom and for which content. 2. Backend Logic (Node.js): • Split Payment Logic: Upon receiving a payment (e.g., $10) into our PayPal Business account, the server must automatically: • Deduct a 5% platform fee ($0.50) and move it to a dedicated "Platform Earnings" table. • Credit the remaining 95% ($9.50) to "User B’s Virtual Wallet" t...

Online Billiards Tournament Platform Project Project Purpose A professional online billiards tournament platform will be created where users can register, purchase tokens, and participate in billiards tournaments using those tokens. The platform will operate entirely on a tournament-based system, with tournaments starting automatically at scheduled times. 1. Token System The virtual currency used on the platform will be called Token. 1 Token = 1 TL. Players will load tokens into their accounts to join tournaments. 2. Tournament System The platform will feature a total of 4 different tournament tables: Table Type Entry Fee Player Count Total Prize Pool Winner Prize (80%) Bronze Table: 25 Tokens 16 Players 400 TL 320 TL Silver Table: 50 Tokens 16 Players 800 TL 640 TL Gold Table: 100 Tokens ...

Kliniğim için hastaların tüm süreçlerini tek panelden yönetebileceğim modern bir web sitesi istiyorum. Tasarımın hem masaüstü hem de mobilde hızlı çalışması, doktor markasını net yansıtması ve veri güvenliğine uygun olması önemli. Ana fonksiyonlar • Kullanıcı kayıt ve giriş: Hastalar kendi hesaplarını oluşturup güvenli şekilde oturum açabilmeli. • Online ödeme: Randevu için kredi kartı ya da benzeri yöntemlerle ön ödeme alabilmek istiyorum. • Hasta bilgileri takibi: – Hasta kayıt ve güncelleme – Randevu geçmişi görüntüleme – Tıbbi kayıtların (rapor, tetkik, reçete vb.) yönetimi ve gerektiğinde PDF/indirme ...

Necesito desarrollar un sitio web que se conecte directamente a las APIs de Uber y FreeNow para automatizar nuestras liquidaciones económicas diarias. Alcance principal • Autenticar y mantener la conexión con ambas APIs, respetando sus límites y políticas. • Extraer y almacenar el historial de viajes, los ingresos diarios y las tarifas/comisiones de cada plataforma. • Calcular de forma automática el total a liquidar cada día, mostrando desglose por viaje, comisión y neto. Interfaz y usabilidad • Panel de control personalizable donde pueda filtrar por rango de fechas, conductor o plataforma. • Gráficas y tablas que faciliten la comparación de ingresos entre Uber y FreeNow. • Opción...

I have just provisioned a fresh Linux-based VPS that runs Apache and I need my existing website—files, database, and all configuration—moved over seamlessly. Your task is to replicate the current production environment on the new server, point the domain once everything checks out, and make sure the site is fully functional after the switch. Here is what I expect to receive at the end of the engagement: • All site files copied to the VPS with correct ownership and permissions • Database exported, imported, and linked to the application • Apache virtual host configured, SSL certificates (if any) reinstated, and relevant PHP modules enabled • Any hard-coded paths or connection strings updated • A brief hand-off note outlining what you change...

I need an experienced developer to update my website's backend. The current backend is built in JavaScript (Node.js). The specific areas that need updating include: - Database management - API integration - User authentication system Ideal skills and experience: - Proficiency in Node.js - Strong background in database management - Experience with API integration - Knowledge of user authentication methods and security protocols - Ability to work quickly and efficiently I need this completed ASAP. Please provide your relevant experience and a timeline for completion.

Busco un programador profesional, serio y comprometido, que pueda desarrollar una plataforma de tienda online propia que tengo en mente, totalmente personalizada y bajo mi control y criterio, como único dueño. No quiero depender de servicios externos ni de diseños hechos con inteligencia artificial: ya vivi esas estafas, necesito un sitio web (y preferiblemente también una aplicación móvil descargable pero eso seria para mas adelante) que sea mío, con acceso completo a la administración, seguridad garantizada y escalabilidad para crecer en el futuro mas adelante, La tienda debe ser multirrubro polirrubro y global, pensada para clientes locales de mi barrio, provincia y país, pero también para compradores internacionales....