Java fring application mobile jobs
£4 for 5 minutes of work. Android only. NY ends in 2 days. Let me do the math for you. 10–15 tasks per hour = $30–$46 per hour That’s not “side hustle” money. That’s better-than-minimum-wage money. United Kingdom – £4 per task Android only (sorry, iPhone – not this time) The clock is ticking. Only ~5,000 tasks left depends on which city you live. Once they’re gone? They’re gone. The work (stupid simple) Walk into a retail store Film the table/chair/rack for <40 seconds (no faces = no privacy drama) Select a Wi-Fi SSID in our app Take 3 storefront photos outside Total time per store: ~5 minutes.
i need European people to read and record 100 short sentences using mobile app in a quiet environment in English. English accent should be neutral. more details with selected candidates.
need to record audio, save the file after 2 minutes, create new file, save the file after 2 minutes and so on. must run only in background. need to use Android Studio and Java. Not Kotlin
...developer who can build a real-time voice chat application centred on group conversations. The core requirement is smooth, low-latency audio so several participants can talk at once without echoes or long delays. Because the app revolves around groups, I also need a solid set of admin controls: the room creator should be able to mute or remove users, lock a room, and assign co-moderators. A simple dashboard or in-room toolbar is fine as long as the workflow is intuitive. We can start with this focused feature set—group voice channels plus admin moderation—and keep the codebase modular so we can layer in extras like private messages, file sharing, or end-to-end encryption later if the roadmap calls for it. Preferred stack • Native Android (Kotlin or Java...
...of expertise needs to balance specific technical "must-haves" with the actual project goals. Here is how you can organize that text for maximum clarity: ### Full-Stack Architect (Java/Spring & Angular/Micro-Frontends) ### 2. Role Overview We are looking for an SME to lead the design and optimization of a high-performance agent application. You will be responsible for end-to-end architecture, from UI patterns to microservices and cloud deployment. ### 3. Core Technical Stack Organize your requirements into logical categories so experts can quickly see if they fit. * **Backend & Cloud:** Java/J2EE, Spring, Hibernate, Oracle DB, and Microservices. * **Infrastructure:** Expertise in ECS, Kubernetes, and OpenShift. * **Data & Performance:** El...
...straightforward offer-wall earning application on Android and need someone who has already built this kind of system before. The app’s core loop is simple: users complete surveys, watch ads, or make small in-app purchases and are rewarded with points that are stored against their profile. What I need built • Rewards points system that instantly credits points for three earning channels—completed surveys, rewarded ads, and verified in-app purchases—and shows the live balance on every screen. • User profile management with secure sign-in (e-mail, Google, or similar), avatar, and a running history of earned points. All data must sync to the cloud so users keep their balance if they reinstall. Preferred stack Native Android (Android Studio). Kotl...
...documents. Accuracy matters more than speed, yet I still expect the agreed daily volume without rushed copy-paste errors or duplicated submissions. Each evening, please drop a concise update in the tracker so I can review: • company name • job title • platform used • direct application link Deliverables (per day) • 100–150 completed applications, fully submitted • Same-day log in the shared tracker • Zero missed fields, duplicated roles, or expired postings Payment is set at $0.10 per successful application, released once the daily log is verified. To show you’ve read everything, begin your bid with exactly: “I read your project and I can search job market platform like Glassdoor from google and I can ...
Developed Lumo, a full stack AI chat web application with multiple interactive personalities and secure user authentication. Built the backend using Python Flask to manage routing, APIs, sessions, and application logic. Integrated SQLite database with SQLAlchemy ORM for efficient data storage and management. Implemented user registration and login system with password hashing for security. Added Google OAuth authentication for quick and seamless social login. Designed a responsive frontend using HTML, CSS, JavaScript, and Flask templates. Created an interactive dashboard where users can select and chat with different AI personalities. Developed real-time chat functionality with multiple characters from Western, Indian, Korean, and fictional backgrounds. Implemented chat histo...
I’m putting together the first-release mobile app for a healthcare marketplace that lets patients and service providers—doctors, therapists, specialists—connect seamlessly. The scope is a lean but fully functional MVP that covers the complete appointment flow. Core experience • On-boarding: phone-number verification only, with a forked flow for patients and providers after sign-up. • Provider discovery: patients browse, search, or filter practitioners, then open rich profiles that list verified qualifications, professional experience, and live user reviews with ratings. • Scheduling: real-time availability displayed in each profile; patients tap a slot to book. • Notifications: instant booking confirmation plus reminders for both parties....
Profile creation: Random name generation (rules will be given) , Random profile pic generation (rules will be given) chat: Text, image, voice notes, Audio call, Video call. Security: disappearing chats in 24h. no ss or recording, etc,, sign in: google auth and apple auth payments: razorpay Location coordinates: yes
I’m gearing up to build a mobile app and want to start on the right foot with a rock-solid brief. Because the concept is still taking shape, I’m looking for a partner who can help me turn scattered ideas into a clear, developer-ready roadmap. Here’s where I stand: • Project type is firmly a mobile app—that much is decided. • I’m still weighing whether the core focus should lean toward e-commerce, social interaction, or a productivity angle, so your strategic insight will be valuable. • Platform choice (iOS, Android, or both) is also open for discussion; I’m interested in what you’d recommend based on features, timeline, and budget expectations. What I need from you: 1. A structured discovery session (or series) to...
We are looking for an experienced YouTube video editor who can take raw video footage shot on mobile phones and turn it into high-quality, engaging, upload-ready YouTube videos. Our YouTube channel focuses on friends, entertainment, and food-based storytelling, with a strong emphasis on home cooks and unique recipes. The videos will feel casual, fun, and real — often featuring everyday cooking moments, social gatherings, and comic light-hearted interactions around food. The editing style should enhance the natural energy of the footage, making simple home-cooked recipes and friendly interactions feel engaging, entertaining, and watchable on YouTube. The goal is to create content that feels authentic yet visually compelling, blending storytelling with food culture and social m...
...background and tag it with an emotion label (happy, sad, angry, etc.). • At the end of every 7-day cycle, compile a weekly recap and keep the previous weeks available for scrolling back. • Inside a settings or dashboard screen, display the recap in an interactive bar, pie, or line chart—whichever communicates the distribution of emotions best. Technical notes – Native Android code in Kotlin or Java is fine; please follow modern practices (Jetpack libraries, MVVM preferred). – Data can live in Room or another lightweight local DB. – Feel free to integrate MPAndroidChart or a comparable open-source graph library for the visual. – The code should be modular so future categories (parts of speech, topics) can plug in without rewri...
...built with clean, well-tested code. Your job is to design and implement REST APIs in both Java and Python, wire them up to PostgreSQL for transactional storage, and index searchable content into OpenSearch so that each event is instantly discoverable. The core of the work is twofold. First, map and integrate the existing internal services with the cloud resources I will provide (IAM-secured endpoints, message queues, and object storage). Second, expose that integrated functionality through RESTful endpoints that follow standard HTTP semantics, are documented with OpenAPI/Swagger, and include unit and integration tests. When the work is complete I expect: • A Git repository containing modular, readable Java and Python services. • Docker-ready builds that spi...
...food-delivery concept to life and need an experienced Android developer to build a complete mobile app from the ground up. The core idea is straightforward: customers browse local restaurant menus, place an order, pay in-app, and track their courier in real time until the meal arrives at their door. Here’s what I have in mind: • A clean, intuitive customer interface for account sign-up/login, location detection, menu browsing with search & filters, customisable orders, cart management, secure checkout, and live order status. • A lightweight courier module that receives delivery requests, turn-by-turn navigation, and status updates (“accepted”, “picked up”, “delivered”). • A simple restaurant portal (mobile-...
We are looking for an experienced Python developer to build a desktop-based application for assisting with high-speed booking workflows (Tatkal-type use case). Requirements: - Strong experience in Python (Desktop app development) - Knowledge of automation tools (Selenium / Playwright preferred) - Experience in building fast and optimized UI (Tkinter / PyQt / Electron optional) - Ability to handle session management and form auto-fill systems - Clipboard integration (auto-read data like train number, passenger details, etc.) - Multi-user input handling (up to 6 passengers) - Manual captcha support (no automation required for captcha/OTP) - Fast execution with minimal delay (performance-focused coding) Features Needed: - Auto-fill passenger details - Quick form submission system -...
... and discover on the spot whether they’ve won a prize. The customer’s brand guidelines are already defined; every screen, colour value, font and icon you create must sit naturally inside that look and feel. The aesthetic we need is firmly Realistic—think genuine depth, subtle lighting and true-to-life textures rather than cartoonish or ultra-flat minimal styles. Scope of work • Map the mobile user journey from QR-landing page through game play, win/lose reveal and share screens. • Produce high-fidelity mock-ups and clickable prototypes in Figma, Sketch or Adobe XD (whichever you prefer). • Supply final asset packs (SVG/PNG/JSON for any Lottie or Spine animations) ready for our front-end devs to plug straight into the web build. Acce...
I need a developer to quickly build a simple mobile app along with a basic admin dashboard. This is a small project with a tight deadline (3 days), so only apply if you can deliver fast. The system should include user login, admin login, and a minimal dashboard to manage users and basic data. Scope of Work Mobile App (User Side) User registration & login Simple dashboard (show basic info like status or data) Clean and minimal UI API integration with backend Admin Panel (Web Dashboard) Admin login View all users Basic stats (total users, activity) Approve/reject simple requests (optional but preferred) Technical Requirements Frontend (App): Flutter / React Native preferred Admin Panel: Simple web dashboard (React / HTML template) backend no need i will takecare
My web application needs a careful round of debugging and optimisation. The biggest headaches sit in the MySQL layer—query errors, slow statements, and the occasional data inconsistency that ripples through the site. Alongside that, a handful of logic errors and controller-level bugs in the Laravel backend have crept in. I’d like you to trace, fix, and test every issue so the whole system runs smoothly again. Here’s what the engagement looks like: • Database: profile queries, rewrite inefficient ones, resolve data mismatch issues, and verify indexes so response times drop. • Backend: clean up logic errors and controller bugs, then refactor where necessary to keep the codebase readable and performant. • Frontend: once the above are stable, confirm t...
I need a cleanup of a Base 44 mobile e-commerce application. The goal is to enhance performance and user experience. Ideal skills and experience: - Mobile app development - Experience with Base 44 platform - Strong background in e-commerce applications - Proficiency in code optimization and UI/UX improvements The app is built and needs some expertise on cleaning it and finding issues.
I need help with the filing of my EB3 category application. I have all the required documents ready, and I am looking for an expert who is well-versed in the application process to assist me in completing and submitting the forms correctly. Ideally, you are familiar with EB3 requirements and can ensure the application is filed accurately and efficiently.
Hello Developers, I am looking for a highly experienced developer to design and develop a Stick-style simulation game tailored for a voice application. **Key Requirements:** - Develop a simulation game with strong, medium, and weak modes balanced to avoid significant losses. - Include an admin panel with full control features: - Profit monitoring - Member management - Transaction tracking **Budget:** $150 per game package. **Important:** The project requires prior experience in developing similar games. Please send your proposal only if you have proven expertise in this domain. Looking forward to working together!
...with interviews and networking calls, so I need a reliable partner who can take the day-to-day application work off my plate for Technology & IT roles I’m pursuing. Your focus will be threefold: • Tailor my existing résumé for each target position, aligning keywords with the job post and keeping formatting ATS-friendly. • Craft persuasive, original cover letters that echo the tone of the company and speak directly to the role’s requirements. • Complete any online or PDF application forms quickly and accurately, flagging any fields that require my personal input. I’ll supply my master résumé, past cover letters, and links to each vacancy as they arise. Turnaround of 24 – 48 hours per application...
For the design of the travel application in figma. Clickable prototype of all the screens of the application
...experienced freelance developer to build custom plugins, contribute OpenSearch commits, perform bug fixes, and optimize search functionality for our Lucene-based search engine projects. This is a short-term to ongoing remote contract (10-20 hours/week initially). Key Requirements 5+ years hands-on experience with OpenSearch, Elasticsearch, or Solr (OpenSearch preferred). Strong proficiency in Java (core language, JVM tuning, build tools like Maven/Gradle). Deep expertise in Apache Lucene (indexing, querying, analyzers, postings, segments). Proven track record building plugins/extensions (e.g., custom analyzers, scorers, or transport layers). Experience with OpenSearch contributions (GitHub PRs, release processes) and bug triage/fixes. Familiarity with search engine interna...
...need an MVP Android application that lets patients view doctor profiles, pick an available slot, confirm the booking, and automatically receive a push or in-app reminder before their visit. The flow should stay friction-free, so skip any sign-up or social login screens; users land straight on the home screen and start searching. Core screens and behaviour • Doctor list with photo, specialty, and quick bio • Appointment calendar per doctor with real-time slot availability • Simple booking confirmation page and success screen • Local notification reminding the user of the upcoming appointment Design can stay minimal—native Material components are fine—but navigation must feel intuitive and responsive across current Android versions. Code in...
...competitive-exam preparation. The core idea is simple—students sign up, take timed tests, and receive instant feedback—yet the execution must be rock solid, mobile-first, and easily maintainable. Here’s what I need you to deliver: • Secure user sign-up / login flow • Responsive web interface that works smoothly on phone, tablet, and desktop • MCQ test engine with a visible countdown that auto-submits when time expires • Instant results page showing score, correct answers, and basic analytics • Admin dashboard for bulk question upload, test creation, and user management Tech preference: React on the front end and either Node.js or Java on the back end. If you have an alternate stack that meets the requirements and speed...
I’m preparing to launch a UK-based learning mobile app aimed at both parents and students (age 9 to 11), and I need an experienced designer who can shape a fun, playful brand identity from the ground up while still weaving in a few legacy elements I’ll share for reference. First, I’d like you to establish the core identity: a primary logo with an icon variant, a colour palette that works in light and dark modes, a clear typography system for headings, body copy and UI labels, plus an iOS- and Android-ready app icon. Once that foundation feels right, we can roll it out across the rest of the assets. Deliverables • Core Brand Identity (logo suite, colours, typography, app icon) • App-ready assets (splash/launch screen and a 3–5 s logo-reveal animati...
We are looking for an experienced mobile app developer to build a clean, reliable, and scalable driver-focused application. Scope of Work: - Real-time GPS tracking (driver location visibility) - Background location updates (low battery consumption) - Document scanning (camera-based, auto-crop, clear image processing) - Upload and manage documents - Status updates (arrived, loaded, in transit, delivered) - Push notifications for tasks and updates - Simple and clean UI for daily driver usage - Secure login and user authentication - Key Requirements: - Experience with mobile app development (iOS & Android) - Strong experience with GPS tracking and background services - Experience with document scanning and image optimization - API integration experience - Clean, fast...
Job Title: Freelance Web & Mobile App Manual Tester Job Description: We are looking for a detail-oriented and experienced Manual Tester to thoroughly test our web and mobile applications. The ideal candidate will be responsible for identifying bugs, ensuring usability, and verifying that our products meet quality standards before release. Responsibilities: Perform manual testing on web and mobile applications (Android & iOS) Identify, report, and track bugs using issue tracking tools Create and execute test cases, test plans, and test scenarios Conduct functional, usability, regression, and exploratory testing Collaborate with developers and designers to resolve issues Verify bug fixes and ensure product stability Provide clear and concise test reports Req...
I’m building an AI-driven security solution that watches live video feeds, decides in real time whether something needs my attention, and instantly pushes a mobile notification when it does. The heart of the job is the end-to-end pipeline: ingest the camera stream, run fast and reliable AI inference, and fan out alerts to my iOS and Android app with minimal delay. Every alert should arrive with a snapshot, timestamp, and location tag so I can act immediately from my phone. Low latency, high accuracy, and rock-solid reliability matter more to me than bleeding-edge experimentation. I’m happy for you to choose the framework—TensorFlow, PyTorch, OpenCV, or another stack—as long as the result is well-documented, container-friendly (Docker/Kubernetes welcome), and...
...event site () needs immediate attention on mobile. Right now the navigation is awkward to use and, on smaller screens, the homepage and event-details pages suffer from overlapping elements, unreadable text, and images that refuse to size correctly. First, I’d like a rapid audit of the current CSS/JS so we can pinpoint exactly why the layout breaks. From there, I expect fixes that make the menus intuitive, align every element, scale the typography for easy reading, and keep visuals sharp and proportionate across iOS and Android devices. Feel free to leverage responsive techniques in plain CSS, Bootstrap, or another lightweight framework—whichever gets reliable results without bloat. Once the mobile experience is solid, I’d like to keep you on for ongoi...
...creation of multi-week plans, with the ability to edit on the fly. A lightweight account system is required: email or Google sign-in, basic profile storage, and cloud sync for routines and history—nothing more elaborate such as leaderboards or community messaging at this stage. Material-style UI, smooth navigation and offline functionality are important. Please structure the code clearly (Kotlin or Java), document major classes, and supply the final APK along with source in a Git repo so I can continue iterating after launch. If you foresee optional add-ons like nutritional guidance, note how they could be integrated later without major rework....
...videos** for my mobile app, **EasyHome** — a platform that connects customers with trusted home service providers. **What I need:** * **Video 1: Service Providers (Individuals & Companies)** → Show how both **independent providers and businesses** can join EasyHome, receive job requests, manage bookings, and **earn money easily**. → Highlight key features like **job notifications, ratings, business growth, and seamless withdrawals of earnings**. * **Video 2: Customers** → Showcase how customers can quickly **find, book, and pay for reliable home services** (cleaning, plumbing, electrical, etc.) with ease and confidence. **Requirements:** * High-quality, **professional ad-style videos** * Strong storytelling with clear value propositions * Expe...
i need European people to read and record 100 short sentences using mobile app in a quiet environment in English. English accent should be neutral. more details with selected candidates.
...runs smoothly on both iOS and Android. The core mandate is simple: the app must analyse the market in real time and automatically place only the most profitable trades, aiming for a zero-loss strategy. I will supply access to my broker’s API as soon as the project starts. Your job is to build the full mobile application, design or fine-tune the trading algorithm, and ensure everything is production-ready. To be considered, tell me about your direct, hands-on experience building mobile trading systems or quantitative strategies—screenshots, links, or concise summaries are perfect; no lengthy proposals needed. Deliverables I expect: • A fully functional iOS & Android app packaged for App Store / Google Play release • The underlying tra...
We are looking for an experienced SEO + ASO specialist to help grow the organic visibility of our astrology platform AstroVoice AI across both: Website SEO (Off-Page / Offsite SEO only) App Store Optimization (ASO) + Offsite App Promotion About Our Product AstroVoice AI is an AI-powered astrology platform with: A live website Android mobile app on Google Play Store Strong traction with a growing user base Focus on Indian users and multilingual audience We need a results-driven expert who can help improve: Organic traffic Keyword rankings App discoverability Backlinks / authority App installs from organic channels Brand mentions across the web Important Note This project is ONLY for OFF-PAGE / OFFSITE SEO and ASO We are NOT looking for on-page SEO, technical website fixes, or a...
IOs and Andriod app version The app and database need to be safe from cyber-attacks. Input data to be split and saved to different providers. All encrypted with a random key. The app does not track the user or stores the IP address. If appropriate IP spoofing, device spoofing, Onion, TOR, Linus OS. Whatever ensure best security but does not affect performance too much. Accept payments in crypto and gift cards - as anonymous as possible Accept payments from bank accounts Partner website to the app also with the same security requirements Security and developer confidentiality is essential as this is a whistleblower app and the users need to be protected.
**Project Title** Mobile App Technology & Product Consultant (Freelance) --- ## Project Overview We are looking for an experienced **freelance consultant** to guide us end-to-end on the planning and technology decisions for a new mobile application. We come from a business background and are currently evaluating how to build the app correctly from day one. We are **not looking for someone only to code**. We need someone who can help us understand the right path forward and advise us on all major technology and execution decisions. This role is ideal for someone who has experience launching mobile products and can simplify technical choices for non-technical founders. --- ## What We Need Help With We need guidance on: * How to approach building a mod...
need to develop android and ios mobile app as well as website for tasks approval (example : for official works, technicians, workers, supervisors, managers used to travel from office to project sites for which they will approach back office executives for train / bus ticket booking. on raising request with proper justification, the system to send notification to their reporting manager for approval. On approval the back office executive will have to initiate ticket booking. note there will be pre-assigned ceiling to various catagories of personnel like technician ticket shall be below 500, engineer can have 800 and manager can have 1000 like wise. If the back office team cant book ticket in the limits, he/she will mention the reason and will route to manager for approval. on success...
I’m ready to turn a new app idea into reality on both Android and iOS and need an experienced developer who can guide the entire build—from refining core features through to final submission in Google Play and the App Store. The concept is already outlined, but I’d like your expertise to shape the technical architecture, create a clean, maintainable code-base, and advise on any best-practice improvements before we launch. Here’s what I’d like you to handle: • Build native-quality apps using a shared code approach (Flutter, React Native, or similar—open to your recommendation). • Connect the front-end to a secure, scalable backend (Firebase, AWS, or another option you trust). • Implement standard app essentials such as user authentic...
I need a developer who can put together a simple, static website in Java for my new packaged drinking-water venture. The visual direction is already set: a classic, elegant look that reflects purity and trust. All logo files and brand assets are in hand, so you can jump straight into layout and coding without waiting on design collateral. Scope of pages • Home • About Us • Product • Contact Us • Query Form (basic enquiry capture) The site will be hosted in the cloud, and I’d like the hosting plan and domain secured for the first 12 months as part of the job. Clean, well-commented code is important because I may expand the site later. Deliverables 1. Fully functional static Java website with the five pages above 2. Deployment to ...
Hi, I am looking for an experienced mobile app developer to build a **Wallpaper App** for Android (and iOS if possible). The app should be modern, fast, and user-friendly with a clean UI. **Requirements:** * Large collection of HD & 4K wallpapers (categories like nature, cars, anime, etc.) * Easy browsing with search and category filters * One-click download and “set as wallpaper” feature * Favorite/save option for users * Admin panel or backend to upload and manage wallpapers * Push notifications for new wallpapers * Ad integration (Google AdMob or similar) * Smooth performance and fast loading **Optional (Bonus):** * User login/signup * Dark mode * API integration for auto wallpaper updates I want a complete solution including design, development, and deploym...
...PLM (E6) to pull out Product data and Document data cleanly and reliably so that I can load it into Siemens Teamcenter. The engagement is entirely about safeguarding data integrity—I am willing to trade speed for absolute correctness. The work involves: • Understanding the E6 database schema, metadata tables, and file vault structure • Writing repeatable PL/SQL / SQL Plus queries or custom Java-based utilities that can scale to the full production volume • Exporting BOMs, items, revisions, attributes, attachments, and related files in a format Teamcenter import tools will accept (XML, CSV, JT, bulk-load packages, etc.) • Logging, error handling, and reconciliation reports that prove every record in Agile has an exact counterpart in the export se...
I need a compact GLB file that drops straight into my WebAR platform and plays a short, realistic sequence: a small fire ignites at the base of the screen, heat waves rise, the on-screen temperature gauge climbs, and the sprinkler head I'll provide photograph for you triggers exactly at 155 °F, releasing water that extinguishes the flames. Key points to hit • Style: keep flames, steam, and water photo-real; no stylized or cartoony effects. • Color: standard reds, oranges, and yellows for fire, clear water, neutral metals—nothing fancy beyond nature’s palette. • Performance: must load quickly and run smoothly on both iOS and Android handsets in browser-based AR. Aim for low-poly geometry, efficient PBR textures, and minimal draw calls so the file...
I bui...simplified nav that tucks away gracefully, touch-friendly buttons, and a few mobile-specific elements (sticky call-to-action, condensed hero images, font sizes that scale cleanly). Everything should look consistent across breakpoints without sacrificing loading speed. Deliverables I’ll use to sign off: • Reworked navigation menu implemented in Squarespace settings • Updated page layouts with balanced text-image sections and consistent styling • Mobile views tested on iOS and Android, showing the new slimmed-down nav and responsive design tweaks • Brief handover notes so I can maintain the structure moving forward If you’re comfortable diving into Squarespace’s Style Editor, Fluid Engine, and the platform’s mobil...
I'm looking for an experienced Wix developer to help finish and perfect my website design, and make it mobile compatible. The site needs layout adjustments on the following pages: - Home page - About Us page - Contact Us page Ideal skills and experience: - Proficiency in Wix - Strong design sense - Experience with mobile optimization - Attention to detail
I’m ready to turn my idea, “Yono,” into a polished mobile title that runs flawlessly on both iOS and Android. The core requirement is a game that offers a satisfying single-player journey but can also switch seamlessly into multiplayer sessions. I’m open on genre—puzzle, adventure, or even action—so long as the concept feels fresh and the mechanics stay intuitive for touch controls. You would handle the full development cycle: refining the concept with me, producing art and audio that match an upbeat, modern aesthetic, building the core mechanics, and implementing reliable real-time or turn-based multiplayer. A lightweight back-end for player accounts, matchmaking, and basic stats is essential, whether you prefer Firebase, PlayFab, or a similar s...