SQLite Jobs

I need a straightforward Flutter app for Android that lets customers build and pay for their pizza order, then pushes the full order to me over LINE. Core flow 1. The user opens the app, browses a menu that I can update myself (add / edit item names and prices). 2. For each pizza they choose toppings individually and can instantly “copy” that pizza to speed-add another. They may also add drinks. 3. At checkout the app automatically deducts 20 baht per pizza and 5 baht per drink from the total, shows the final amount, and presents a Thai PromptPay–style QR code for payment. 4. After the customer scans and pays, the app captures the payment confirmation image / reference. 5. A single LINE message is generated containing: • customer name and the customer...

I’m building a dedicated Android application and web application that lets users browse and interact with a large, well-structured library of questions. The core idea is simple: present questions clearly, let users filter or search them with ease, and ensure the whole experience feels fast and native on any modern Android device and web search platform. Clean architecture, offline-friendly data storage (Room/SQLite or your preferred solution), and a responsive Material-compliant UI are must-haves. I’d like to see a detailed project proposal from you. Please walk me through your suggested tech stack (Kotlin / Jetpack Compose, MVVM, dependency-injection choices, testing strategy, analytics, etc.), the data model you intend to use for storing questions, and a milestone-based time...

Project Title: OEE Monitoring System Development (ESP32 + Node-RED + Orange Pi + MQTT + SQLite) --- Project Description: I am looking for an experienced developer to build and complete an industrial OEE (Overall Equipment Effectiveness) monitoring system based on my existing architecture. The system is already partially designed, and the web dashboard is already available. The main task is to complete the data acquisition, processing, and integration layers. This is an edge-based industrial system, not a simple web app. --- System Architecture Overview: Machine → ESP32 → Orange Pi → Node-RED → MQTT → Dashboard ↓ SQLite (historical data) ↓ Firebase (cloud sync) --- Scope of Work: 1. ESP32 Development - Read machine data via: - Digital inputs ...

I need an Android application (translated to spanish) built that lets me keep a precise, day-by-day record of how much lysine, protein, and calories I consume. Every time I eat, I want to type the food name, quantity, and time; the app must immediately calculate the three nutrients and add the entry to the current day’s log. All food data—including lysine content—has to live in a fully editable database inside the app. I should be able to add, adjust, or delete any food and its “per-100 g” numbers without ever leaving the interface. For the records themselves, everything must be stored locally (SQLite / Room, or any robust on-device option). When I open the app I expect a clean graphical overview of today’s totals and an easy way to swipe back throug...

I already have a Flutter-based mobile POS app and need to add true offline capability so staff can keep working without connectivity and then push everything safely to the cloud. Key requirements • Data to cache and sync: sales transactions, inventory updates, and customer information. • Sync cadence: an automatic periodic job—about once an hour—that wakes up, checks connectivity, and pushes/pulls changes. • Conflict strategy: when the cloud copy disagrees with what was captured offline, the local changes win automatically. What I expect from you 1. Choose or implement an efficient local persistence layer (e.g., SQLite, Hive, or similar) and wire it into my existing Flutter codebase. 2. Build a lightweight queue/change-tracking mechanism so new or...