Software development jobs

Create one instance of CRM Software in HTML and using Ruby Rails. Import data from CSV file into predetermined fields

Hello, Thank you for confirming the budget. I want to ensure we build a system that is stable, scalable, and genuinely useful for your operations rather than rushing into an overloaded implementation. Based on the project requirements, the complete solution includes multiple independent modules (AI logic layer, RFQ engine, promotions system, automation workflows, admin analytics, etc.), which are typically implemented in structured stages. Within the current budget of $500, we can confidently deliver a strong and production-ready Phase 1, which would include: • WhatsApp Business API integration • Core conversational logic & intent handling • Product search & availability via your platform APIs • Pricing response flow • Basic order / status handling • E...

Only candidates with a Computer Science degree from a UK institution will be considered.

I’m looking for an independent developer who can take full ownership of designing and building an AI-driven chatbot from the ground up. At this stage I have a clear business need for an intelligent assistant but I’m open to your recommendations on the exact feature set, tech stack, and deployment channel. Here’s what I’ll rely on you to handle: • Scoping: translate my high-level objectives into a practical bot roadmap and recommend the most suitable NLP or LLM framework (e.g., Python with LangChain, Node.js, Dialogflow, Rasa, or another option you trust). • Architecture & Build: create the conversational flows, implement the model logic, and wire up any required APIs or data sources. • Training & Fine-tuning: curate or generate sample da...

I want to replicate the smooth, quick-credit experience that apps such as KreditBee and Money View deliver, but with my own branding and flow. The build is strictly for Android and must be submitted to – and accepted by – Google Play, so every screen, permission request, and data-handling practice has to comply with the latest Play Store lending and personal-loan policies. Core flow • Registration → basic details • KYC verification – Aadhaar/PAN capture, selfie match, secure API hand-off to a third-party service of your choice • Loan application and approval dashboard • Before loan disbursement, the app must harvest and store the user’s full contact list (names, phone numbers, email where available) after an explicit consent prompt ...

Build E-commerce Website for Fashion Brand (TriKr) Project Description (Post This) Hello, I am launching a new fashion clothing brand called TriKr (slogan: Think Young). We are looking for an experienced developer or team to build a modern, stylish, and mobile-responsive e-commerce website. About the Brand: TriKr is a trendy and classy fashion brand targeting youth and modern customers. The design should look premium (black, white, gold theme preferred). Website Requirements: • Home Page (Brand-focused design) • Shop Page (Men / Women categories) • Product Details Page • Add to Cart • Secure Checkout • Payment Gateway Integration (Razorpay / Stripe) • User Login / Signup • Admin Panel to manage products, prices & inventory • Order Manage...

Community Matrimonial Mobile App (Android + IOS) + Website Basic Application Flow Users will receive an official website link. From the website, they will download the mobile app (Android / iOS, if applicable). Inside the app: Users will enter their mobile number and login via OTP. They will fill in their child’s biodata form (personal details, family details, etc.). They will upload photos. They will complete the required payment. After payment: The profile will be sent to the Admin for review. If approved, the profile will be added to the assigned group. If rejected, the payment will be refunded and the user will be notified. Inside the Group: Members can view other profiles. Members can shortlist profiles. Members can contact Admin via support option (chat/call as enabled). Su...

I'm looking for an experienced developer to create an algorithmic trading bot for trading stocks using the Alpaca API. Key Requirements: - Implement algorithmic trading strategies - Trade exclusively in stocks - Use of Python programming language Ideal Skills and Experience: - Proficiency in Python - Experience with Alpaca API - Strong background in algorithmic trading - Familiarity with financial markets and stock trading Please provide examples of similar work done and your approach to this project.

...journey, I have achieved skills in CAD software, 3D modeling, BIM modeling, and graphic presentation. In my previous 2 years of experience as a junior architect at Aishwarya Architects and Maheshwari architects & associates, Mumbai. I have successfully led multidisciplinary teams through various stages of project development, from initial concept design, site planning, coordination with site, construction documentation. My experience collaborating with clients, consultants, and contractors has equipped me with strong communication and interpersonal skills. BIM Certification and experienced working on Live International Projects.  Experience in 3D modeling, BIM modeling, and graphic presentation.  Architect with prior experience and architectural software s...

We are looking for an experienced WordPress developer to design and develop a modern, fast, and conversion-focused website for our event management company. The website should include pages such as Home, About, Services, Events/Portfolio, Gallery, Blog, and Contact, with features like full responsiveness, fast loading speed, SEO-friendly structure, lead capture forms, WhatsApp integration, event gallery, blog system, and secure setup. The design should be premium, clean, and professionally branded — no cheap templates or bloated plugins. Final delivery should include a fully functional live website, admin access, source files, backup, and minimum 7 days of post-launch support. Please share 3–5 relevant WordPress projects, live demo links, estimated timeline, and your fixed pric...

Community Matrimonial Mobile App (Android + IOS) + Website Basic Application Flow Users will receive an official website link. From the website, they will download the mobile app (Android / iOS, if applicable). Inside the app: Users will enter their mobile number and login via OTP. They will fill in their child’s biodata form (personal details, family details, etc.). They will upload photos. They will complete the required payment. After payment: The profile will be sent to the Admin for review. If approved, the profile will be added to the assigned group. If rejected, the payment will be refunded and the user will be notified. Inside the Group: Members can view other profiles. Members can shortlist profiles. Members can contact Admin via support option (chat/call as enabled). Su...

I'm seeking an experienced programmer to create a Windows-compatible software tool for automating exam registrations. This tool will be used to register for a large number of exams and will require user authentication, but only for admin users. Key Requirements: - Windows compatibility - Automation of mass exam registrations - Admin authentication for software access Ideal Skills & Experience: - Proficiency in Windows software development - Experience with automation tools and scripts - Knowledge of secure authentication protocols Please provide examples of similar work and an estimated timeline for completion.

GAME IDEA: 6 CURSES Core loop: Players pick 1 of 6 pads. Each pad triggers a different curse. Survive the curse → stay. Fail → you fall / die. Arena Simple square or circular arena Void or kill floor underneath 6 pads in the center (same size, same color) Each pad is tied to one curse THE 6 CURSES (simple + popular) 1 Speed Curse Players get very fast → easy to slip/fall 2 Low Jump Curse Jump is weak → obstacles become deadly 3 High Jump Curse Too much jump → players overshoot platforms 4 Ice Curse Floor becomes slippery 5 Darkness Curse Lighting drops → hard to see 6 Swap Curse All players swap positions once (These are common mechanics, easy to script, and fun.) Round Flow 10 seconds: “PICK A PAD” Everyone gets cursed based on p...

Freelance Web Developer / Site Builder (Simple Content MVP) Budget: $100 (fixed) Timeline: ASAP (5–10 days) Project Type: One-off, fixed-scope build ⸻ Project Overview I’m launching a content-led website. All site structure and written copy are already complete. This role is implementation only: • no copywriting • no design exploration • no custom features The goal is a clean, readable MVP using reusable page layouts. ⸻ Pages to Build (Exact Scope) Most pages reuse the same layout with different content. ⸻ Core Pages • Home • AI & Jobs (hub page) • Newsletter (signup section or simple page) ⸻ Economy & Policy • Economy & Policy (hub) • Signals Dashboard • AI Regulation Tracker • Action Notes (i...

I run a boutique app-development agency and I’m ready to scale by bringing on a commission-only specialist who can feed me a steady stream of qualified leads. Primary focus • Healthcare organisations are my top target right now—hospitals, clinics, health-tech startups, medical device makers, you name it. • That said, if you already have a strong network inside insurance companies, I’m happy to tap that too. What we actually sell My team delivers end-to-end custom software, mobile app development and layered cybersecurity solutions. Any lead that needs a HIPAA-ready patient portal, an internal claims mobile app, or a hardened API is a potential fit. Your day-to-day – Hunt for decision-makers, warm them up, and hand them off o...

I'm seeking a skilled developer to create a visually appealing chess app for both iOS and Android platforms. The app should allo...The app should allow users to edit starting positions of pieces and offer both player vs player and player vs computer modes. Key Requirements: - 3D animations for piece movements and taking pieces, with an emphasis on visual effects. - Advanced AI for computer opponent - User-friendly interface for easily editable game starts. Ideal Skills and Experience: - Proven experience in mobile app development for both iOS and Android. - Strong background in 3D animation and graphics design. - Experience in developing AI for games, particularly chess. - UI/UX design skills to ensure a smooth user experience. Please provide examples of similar projects yo...

I need a complete astrology application whose core job is to generate accurate birth (natal) charts. A user should be able to enter date, exact time, and place of birth and instantly receive a visual chart with the usual planetary positions, house cusps and aspect table. Platforms The solution must run natively on Windows and through a Web interface; I would also like Mac OS support and, if you can package the same codebase into Android and iOS apps, even better. Please indicate how you plan to achieve this multi-platform reach—whether that is via Electron, Flutter, React/Node, or another framework that compiles to desktop, web, and mobile. Key requirements • High-precision ephemeris calculations so the chart data is reliable • Clean UI that shows the wheel, table...

I already have a fully developed Android and iOS LMS IQ app. I am looking for an experienced mobile app developer to configure the existing codebase. This is not a new app development project. Tasks: - Connect the app to my server/backend - Change app logo, app name, and package/bundle ID - Make small guided edits as per provided documentation - Generate Android (APK/AAB) and iOS builds Clear documentation will be provided. This is a small and quick task for an experienced developer. Requirements: - Experience with Android and iOS app developer - Comfortable working with existing code - Familiar with app build and store requirements Timeline: Expected completion: 1–2 days Do not apply if you are proposing to rebuild the app. Note: I need 3 apps to be configured, on...

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Laravel Architect / Plugin System Engineer — LaravelCP Collaboration Project Overview I’m building LaravelCP, a modular Laravel 11 backend engine designed to power browser-based PBBG (Persistent Browser-Based Game) systems. LaravelCP is not a theme or a single game — it is a plugin-driven backend framework intended to: • Provide authentication, roles, permissions, 2FA • Provide an extensible Action Pipeline system • Support a fully modular plugin architecture • Allow developers to build game mechanics as installable plugins • Remain kernel-pure (Core contains zero plugin imports) • Power multiple frontends (custom UIs, SPAs, community hubs, etc.) The system is currently in advanced architectural state and undergoing hardening for pr...

I want a user-friendly Vedic astrology application that runs smoothly on web and mobile. Core modules need to calculate planetary positions using the Vedic (sidereal) system, then translate that data into: • Daily horoscope readings generated automatically from the planetary transits • Accurate birth-chart (kundali) generation with divisional charts • Compatibility (synastry) reports based on the two birth charts • Integrated numerology engine that derives and explains life-path numbers • Instant lucky-number and lucky-stone suggestions drawn from the user’s chart and the day’s transit Source code, cleanly documented, and an admin panel for managing user accounts, content text, and horoscope rulesets complete the package. Modern stacks such as...

I’m preparing to launch a new initiative called “150.000koin” and need an experienced developer to help shape the technical side of the project from the ground up. Because the concept is still being finalized, I’m looking for guidance on which platform—web, mobile, or desktop—will best fit our eventual goals, as well as practical recommendations on architecture, security, and scalability. Key objectives: • Clarify and document the core functionality that will power 150.000koin. • Propose a technology stack that balances performance, cost, and ease of maintenance. • Deliver an initial, working prototype (basic interface plus back-end logic) that demonstrates main workflows such as user registration, asset tracking, and secure transact...

This project involves developing structured frontend interfaces for IELTS and CELPIP practice exams within an existing web application. The scope focuses on implementing real-exam-like user interfaces that replicate the structure, navigation flow, and timing behavior of official exams. Development will be integrated into the client’s existing codebase using Firebase/Supabase as currently configured (no backend redesign included in this phase). Core Deliverables 1. Question Management UI • Interface for creating and managing questions • Support for multiple question types (MCQ, short answer, essay) • Module categorization (Reading, Writing, etc.) • Editing and updating capabilities 2. IELTS Exam Interface • Section-based layout • Structur...

I'm looking for an experienced website developer to create an e-commerce platform focused on physical goods. The site should support multiple vendors and include essential features such as: - Product search and filtering - Customer reviews and ratings - Inventory management Ideal skills and experience: - Proven track record in developing multi-vendor e-commerce sites - Strong understanding of user experience and interface design - Expertise in inventory management systems - Ability to integrate customer review functionalities Please provide examples of similar work done.

I'm looking to develop a mechanical device with 4 adjustable roads coming in and going out from the center diagonally. The roads should have adjustable lengths, and the adjustments will be done manually. Ideal skills and experience: - Mechanical engineering - Proficiency in designing adjustable structures - Experience with manual adjustment mechanisms - Strong problem-solving skills Please provide examples of similar work done.

I want to add a page to my existing website. Details will be shared soon

I need a modern and professional company logo for my IT training center named SparkLine. The logo should reflect innovation, technology, growth, and digital learning. Since this is an IT training center, the design should represent concepts like coding, networking, software development, digital transformation, or knowledge advancement. The logo must use a creative and unique concept that visually connects with the name “SparkLine” — symbolizing a spark of ideas, electricity, connectivity, progress, or a rising digital line. It should look clean, smart, and tech-focused while remaining simple and memorable. Color selection will be chosen by the designer, but it should match a professional IT and education theme (modern, energetic, and trustworthy). The logo...

Build Full Stack API with FastAPI, PostgreSQL & Streamlit UI You said: Uploaded image Give me matter for this ChatGPT said: Good. This is important. If you write a weak description, you’ll attract low-quality freelancers. If you write clearly, you get serious professionals. I’ll give you a strong, clear project description you can directly paste. Option 1: FastAPI + PostgreSQL + Streamlit Project Project Title Idea: Build Full Stack API with FastAPI, PostgreSQL & Streamlit UI I need a developer to build a full-stack application using FastAPI, PostgreSQL, and Streamlit. Project Requirements: • Build REST APIs using FastAPI • Connect to PostgreSQL database • Implement full CRUD operations (Create, Read, Update, Delete) • Database table fi...

I’m ready to launch my own personal blog and need a skilled developer to build it end-to-end. The site must include an easy-to-moderate comment section under every post, smooth social media integration so readers can share content in a click, and a newsletter subscription form that feeds new sign-ups straight into Mailchimp (or a comparable service) with double-opt-in enabled. I’m flexible on the tech stack—WordPress, Ghost, or another solid CMS are all fine as long as I get a clean design, fast load times, and a back-end that lets me publish without hassle. I’ll supply the logo, colour palette, images, and initial copy; you handle installation, theme or template customisation, plugin setup, security hardening, and cross-device testing. Deliverables: • Full...

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Hello, I am building a small data collection tool for a medical AI research project. The goal is to collect doctor-patient role-play audio data and prepare it for AI training. I need a simple system with the following features: 1) Web-based interface (works on mobile and desktop) 2) Upload audio files (WAV/MP3) 3) Automatic speech-to-text using Whisper 4) Editable transcript (dialect correction) 5) Field for medical Arabic normalization 6) Term notes input 7) Automatic folder/package generation per session 8) Cloud storage (Google Drive / S3 or similar) This is Phase 1: Data collection only (no diagnosis, no reports). Tech preference: - Frontend: Web (React or simple HTML) - Backend: Python (Flask/FastAPI) - ASR: Whisper - Storage: Cloud + Local Deliverable: A working MVP that allow...

We are looking for an experienced mobile application developer to develop a user-friendly mobile-based application for : * Real-time data entry * Temperature monitoring and recording * Product traceability management * Basic reporting and tracking features The application will primarily support food safety and operational monitoring requirements, so experience in developing apps related to compliance, monitoring systems, or industrial/food sectors will be an added advantage. Preference : We are specifically looking for developers based in South India for ease of coordination and communication. More detailed project requirements, workflow expectations, and technical specifications will be shared with shortlisted candidates. Interested professionals may share their profile, relevant exp...

*** globeNest *** globeNest is a web application inspired by Airbnb that allows users to rent out properties and book accommodations based on personal preferences. It simplifies the process for both property owners and users looking for stays. * Features * 1. List your property with price per night 2. Browse listings based on location and filters 3. Authentication & Authorization with 4. User roles for Owners and Renters 5. Deployed on Render Tech Stack Frontend: HTML, Bootstrap, JavaScript Templating Engine: EJS Backend: Node.js, Database: MongoDB Authentication: Getting Started Clone the repository git clone cd globeNest Install dependencies npm install Run the app node Visit : Live Demo Check out the deployed version here: License This project is open-source and ava...

PLEASE READ DESCRIPTION AND TASK TO COMPLETE - DO NOT APPLY IF YOU DO NOT HAVE ALL THE QUALIFICATIONS OR HAVE EXPERIENCE. YOU WILL BE IGNORED IF YOU DO NOT MEET THE MIN REQUIRMENTS Website Design Brief Brand: Cre8tive Media Group Objective: Build a premium, high-converting, user-friendly website that positions Cre8tive Media Group above competitors (e.g. Digital 1) and makes booking fast and effortless. ⸻ 1. Primary Goals 1. Create a modern, premium, cinematic brand presence 2. Make the website extremely easy to navigate 3. Enable fast online booking & enquiry 4. Clearly position Elevate 360 as higher quality than competitors 5. Convert visitors into bookings, enquiries, and long-term clients 6. Showcase visual storytelling & video dominance 7. Optimise for mobile first ...

You are a senior cybersecurity + machine learning engineer. Build a practical, runnable, end-to-end Transformer-based Web Application Firewall (AI-WAF) prototype suitable for Smart India Hackathon / ISRO SIH demonstration. The system must implement the full pipeline: Log Ingestion → Parsing → Normalization → Tokenization → Transformer Training → Multi-Class Attack Classification → Anomaly Scoring → Real-Time Non-Blocking Inference → Alerting & Logging → Incremental Fine-Tuning ======================================== 1. CORE FUNCTIONAL REQUIREMENTS ======================================== A. Multi-Class Attack Detection The Transformer model must classify HTTP requests into: - BENIGN - SQL_INJECTION - XSS - COMMAND_INJECTION - PATH_TR...

I’m ready to have a brand-new feature built from scratch for my mobile application, and the entire codebase needs to be written in pure Java. Performance, clean architecture, and clear inline documentation are non-negotiable because this module will slot straight into an existing codebase that already follows solid, maintainable practices. Here’s what I need from you: • A concise outline of your technical approach—how you’ll structure the code, the patterns or libraries you prefer, and the way you’ll keep the footprint lightweight on a mobile device. • A short overview of your relevant Java mobile experience, especially any instances where you created a feature end-to-end rather than extending existing code. • Your best estimate of the cale...

I'm looking for an experienced Shopify developer to create a complete e-commerce store for my healthtech nutraceutical products. Key Requirements: - Store setup and customization - User-friendly navigation - Secure payment gateway integration - Mobile-responsive design - SEO optimization for better visibility Ideal Skills and Experience: - Proven Shopify development experience - Strong understanding of e-commerce best practices - Knowledge of SEO and mobile optimization - Ability to deliver high-quality work on an ASAP timeline Please provide examples of previous work and an estimated completion time.

I'm looking for an experienced web developer to create a professional website for a healthtech company focused on clinical research. The goal is to provide comprehensive information about our clinical research services and trials. Ideal Skills and Experience: - Strong background in developing websites for healthtech or similar industries - Ability to create a user-friendly, informative layout - Experience with SEO and digital marketing - Knowledge of compliance requirements in the health sector - Strong design skills to ensure a professional and modern look Please include examples of previous work in your bids.

I need an experienced AEM developer for component development. You will need to create components that align with specific design guidelines and branding. Key requirements: - Expertise in AEM component development - Strong understanding of design implementation in AEM - Ability to follow and translate specific design guidelines Please provide: - Relevant experience - Examples of past work in a similar context Ideal skills include proficiency in AEM, front-end technologies (HTML, CSS, JavaScript), and a keen eye for detail to ensure brand consistency.

I need a straightforward utility-style Android application that serves as a responsive calculator. You may build it in JavaScript (React Native, Ionic, etc.) or Python (Kivy, BeeWare, Chaquopy—whatever you are most productive with). Core requirement • A clean calculator interface that handles reliable, real-time calculations. At minimum I need the standard arithmetic operations; if you can architect it so scientific or financial functions can be added later that would be even better. Deliverables • APK ready for installation on current Android versions • Complete, well-commented source code • Brief read-me explaining framework setup, build steps, and how to extend the operation set Acceptance I will install the APK on a physical device and cross...

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...Booking system with calendar view - In-app notifications for booking updates and reminders - Dashboard for hosts showcasing their vehicles, earnings, and ratings - In-app chat functionality Vehicle Discovery: - Map view with GPS - List view sorted by distance - Search by location Ideal Skills and Experience: - Mobile app development (iOS and Android) - Experience with GPS and map integration - Strong UI/UX design skills - Familiarity with in-app payment systems - Backend development for real-time data management I'm looking for a developer who can create a user-friendly, efficient, and secure platform. Please provide examples of similar projects you've completed. -The UI should be simple, intuitive, and fast. -The app should support multi-language capability ...

I need a comprehensive appointment scheduling software tailored for the medical sector, to be developed specifically for Windows. Key requirements: - User-friendly interface for both patients and healthcare providers. - Secure login and user authentication. - Ability to view, book, and manage appointments. - Integration with existing medical databases for real-time updates. - Notification system for reminders via email or SMS. Ideal skills and experience: - Proven experience in developing scheduling software. - Strong knowledge of Windows application development. - Expertise in database integration and security protocols. - Ability to provide detailed project proposals. Please include a detailed project proposal in your application.

Website development related work for your website.

I need a web-based platform that lets brands and social media creators handle everything from first contact to post-campaign reporting in one place. The flow should feel seamless: a brand signs in, discovers relevant influencers, agrees on terms, runs the campaign, then follows performance data live. Scope of work • Plan the overall architecture, database schema and a clean, mobile-friendly interface. • Create secure user roles for brands, influencers and administrators. • Build modules for influencer discovery, automated campaign workflow and real-time analytics. • Integrate with Instagram, TikTok, YouTube (and similar) APIs so follower counts, engagement rates and post metrics sync automatically. • Include an admin dashboard where I can approve or susp...

I’m building Agreecultur as an information-sharing mobile app and need an experienced developer to turn my concept into a polished iOS and Android product. The core idea is simple: users open the app and immediately see fresh, well-structured content that I publish through an admin dashboard. Clean navigation, quick load times, and an intuitive layout are critical. Here is what I have in mind: • Cross-platform build using Flutter or React Native so we keep a single codebase. • A lightweight backend (Firebase, Supabase, or a Node + PostgreSQL stack) that lets me log in, create articles, tag them, and push updates instantly. • Push notifications the moment new content goes live. • Basic user analytics so I can track reads, session length, and popular topics...

I run a boutique app-development agency and I’m ready to scale by bringing on a commission-only specialist who can feed me a steady stream of qualified leads. Primary focus • Healthcare organisations are my top target right now—hospitals, clinics, health-tech startups, medical device makers, you name it. • That said, if you already have a strong network inside insurance companies, I’m happy to tap that too. What we actually sell My team delivers end-to-end custom software, mobile app development and layered cybersecurity solutions. Any lead that needs a HIPAA-ready patient portal, an internal claims mobile app, or a hardened API is a potential fit. Your day-to-day – Hunt for decision-makers, warm them up, and hand them off o...

...roster of dependable freelancers so I can delegate work on a continuing basis instead of posting one-off tasks every time something new comes up. My priority is building long-term projects together; if you’re only after a quick, one-day assignment this listing probably isn’t the best fit. Because my workload is varied, I’m open to many disciplines: writing & translation, graphic design, software development, marketing, technical support, consulting and related specialties are all useful to me. What matters most is that you communicate clearly, meet agreed deadlines, and are comfortable collaborating over time as priorities shift. Here’s what I’d like to receive from you after you place a bid: • A concise overview of the services you...

...roster of dependable freelancers so I can delegate work on a continuing basis instead of posting one-off tasks every time something new comes up. My priority is building long-term projects together; if you’re only after a quick, one-day assignment this listing probably isn’t the best fit. Because my workload is varied, I’m open to many disciplines: writing & translation, graphic design, software development, marketing, technical support, consulting and related specialties are all useful to me. What matters most is that you communicate clearly, meet agreed deadlines, and are comfortable collaborating over time as priorities shift. Here’s what I’d like to receive from you after you place a bid: • A concise overview of the services you...

Seeking experienced hardware engineer to build a prototype of a wall-mounted emergency device. Specs: Form Factor: Wall-mounted, compact, durable enclosure (weatherproof if outdoor use intended). Primary Function: Transmit pre-programmed GPS coordinates to a central monitoring location (e.g., server, app, or emergency service) upon activation for real-time tracking. Transmission Methods: Primary: GSM (cellular network) for cost-effective, low-latency sending. Failover: Satellite (e.g., Iridium or Globalstar network) if GSM unavailable. Power Source: Battery-powered with optional mini solar panel for recharging. Standby Battery Life: Minimum 1 year without charging (low-power mode). User Interface: Single button for activation; 2 LEDs for status feedback. Key Features Programming: Devic...