Kotlin Jobs

I’m planning a mobile application that will pair job seekers with job offers on both Android and iOS. The core build must include robust user profiles, along with a fast, accurate job-search experience supported by filters such as location, role … In-app messaging is still open for discussion, so I’m interested in hearing how you would implement or improve that layer while keeping the platform secure and scalable. The app will run dual-sided: one workflow for seekers and another for offers, each with its own dashboard and feature set. I value clean UI/UX, solid documentation, and maintainable code (React Native, Flutter, or Swift/Kotlin native—whichever you feel best fits the brief). Please share at least one live link or store listing of a similar app you crea...

Saya ingin sebuah aplikasi pendidikan khusus untuk perangkat Android. Aplikasi ini harus menghadirkan materi belajar interaktif—misalnya video singkat, kuis pilihan ganda, dan ringkasan teks—agar pengguna dapat memahami topik-topik dasar secara mudah. Ruang lingkup pekerjaan: • Rancang antarmuka Material Design yang sederhana dan responsif. • Bangun fitur utama: daftar modul belajar, pemutar konten (teks + video), kuis dengan penilaian otomatis, serta halaman rekap kemajuan. • Pastikan aplikasi dapat berjalan mulus di Android versi terbaru dan tetap kompatibel hingga Android 8.0. • Sertakan kode sumber lengkap (Kotlin atau Java), panduan build, dan file APK siap rilis ke Google Play. Kriteria penerimaan: aplikasi stabil tanpa crash, navigasi in...

I have a RecyclerView driven by a LinearLayoutManager. Card taps are currently picked up through an OnPress handler, and I already keep the underlying data in a ViewModel. The problem is simple: when a user opens a detail screen from any card and then presses the back button, the list always jumps back to the very top instead of revealing the card they originally tapped. I need the list to remember its exact scroll position so that returning feels seamless. You’re free to solve it however you feel is cleanest—saving and restoring the layout manager state, using the Navigation component’s back-stack handling, or any other proven method—as long as: • the previous scroll position is restored every time, • orientation changes don’t break the fi...

I need a skilled Android developer to transform my concept into a fully functional, Play-Store-ready application. The project targets the latest Android releases, so solid knowledge of native Android (Kotlin or Java) is essential. I’m open to modern frameworks such as Flutter if you can guarantee a smooth Android-only build. Scope • Translate my wireframes and user-flow notes into an intuitive UI that runs smoothly across common screen sizes. • Build the complete feature set we finalise together; possibilities may include push notifications, secure user sign-in, or even in-app purchases, so prior experience with Firebase, Google Play Billing, or similar services is valuable. • Integrate any necessary back-end APIs, set up local data caching, and ensure the app remains...

I’m looking for a skilled software developer to create a mobile application for Android devices. The main goal is to turn my concept into a reliable, user-friendly app that meets current Google Play standards. Key objectives: • Translate my idea into clear technical requirements and a development roadmap. • Build the Android application, using Kotlin or Java—or another modern stack you recommend—to ensure smooth performance on recent Android versions. • Implement a clean, intuitive user interface that follows Material Design guidelines. • Connect any necessary APIs or back-end services and handle data storage securely. • Test across multiple screen sizes, fix bugs, and prepare the final APK/AAB for submission to Google Play. Deliverabl...

I’m ready to bring a new social networking experience to both iOS and Android and I need a seasoned mobile developer who can take the concept from blank screen to App Store and Google Play release. The core objective is to create a responsive, stable and scalable app that feels genuinely native on each platform while sharing a single codebase where sensible. Here’s what I’m looking for: • A developer who has already shipped social or community-driven apps and can point to live examples. • Proficiency with Swift or Objective-C on iOS, Kotlin or Java on Android, and a proven cross-platform framework if you prefer to accelerate the build (React Native, Flutter, or similar). • Solid back-end knowledge to stand up user authentication, data storage, push n...

I’m building a stripped-down social networking experience that centres entirely on text messaging. The goal is an Android-only app where users can exchange real-time text messages and spin up group chats without the heavier extras of photo sharing or profile feeds. Here’s what I need from you: • A clean Android Studio project (Java or Kotlin) that compiles out of the box. • Core screens for recent chats, one-to-one threads, and group conversations. • Real-time delivery of text messages, synced across devices even on spotty connections. • The ability for any user to create, name, and invite others to a group chat. • Push notifications for new messages. • Basic message history stored securely in the cloud (Firebase, Supabase, or a compara...

I have a RecyclerView driven by a LinearLayoutManager. Card taps are currently picked up through an OnPress handler, and I already keep the underlying data in a ViewModel. The problem is simple: when a user opens a detail screen from any card and then presses the back button, the list always jumps back to the very top instead of revealing the card they originally tapped. I need the list to remember its exact scroll position so that returning feels seamless. You’re free to solve it however you feel is cleanest—saving and restoring the layout manager state, using the Navigation component’s back-stack handling, or any other proven method—as long as: • the previous scroll position is restored every time, • orientation changes don’t break the fi...

I already have the core screens in place for an Android agri-tech application that will serve three field-side user roles plus one admin panel. What I need now is an experienced Android developer who can take the project from this UI prototype through to a production-ready release on Google Play. Scope of work • Wire the existing layouts to a robust back end so that every user can input data, monitor it in real time and receive analytic dashboards that make sense in the field. • Build an alert and notification flow (push & in-app) to keep farmers instantly informed of anything that demands attention. • Integrate a payment gateway so transactions inside the app run securely and are audit-ready. • Prepare all artefacts required for Google Play publication, gu...

I’m building a new social-networking experience focused on fast, reliable messaging for Android. The scope is a native Android app where users can register, find friends, and chat one-to-one or in groups with text, emojis, and read receipts. Core deliverables • An Android Studio project written in Kotlin (Java is acceptable if you strongly prefer) • Clean, modular architecture (MVVM or similar) with clear documentation • Firebase, Supabase, or another real-time backend wired up for authentication and message sync • Basic material-design UI: login/signup, contact list, chat screen, settings • APK and source code ready for submission to Google Play, plus a brief hand-over guide While the first milestone covers messaging only, I’d like the codeb...

I’m ready to turn my game concept into a polished Android application and need a developer who can take the project from first prototype to Google Play release. The core objective is simple: build a fun, stable, and performance-optimised gaming app exclusively for Android phones and tablets. You will handle the full development cycle—coding, asset integration, basic UI, local data storage, and Google Play Services (achievements, leaderboards, cloud saves). I already have draft gameplay mechanics and artwork; you’ll weave these together, advise on the best engine or native stack (Unity, Godot, Kotlin + OpenGL, etc.), and keep frame rates smooth across common mid-range devices. Deliverables • One signed, installable APK ready for internal testing • Clean, we...

I need a production-ready Android application that lets gamers enter Free Fire and BGMI single-elimination tournaments using a dual-currency system. Players will spend coins to register, earn diamonds for every kill and final position, then redeem those diamonds for Amazon, Flipkart, or Google Play gift cards inside the app. Core experience • Clean, modern UI with separate weekly and monthly leaderboards that reset automatically. • Email-and-password login only; no social or phone auth is required. • Coins and diamonds must be handled by a secure, server-side wallet so no values are stored locally. • Offerwalls (Timewall, CPAlead, Monlix) should credit coins instantly once their callbacks fire. • I will supply my unity account—ads keep the app comp...

I’m moving forward with a fresh Android-only mobile application centred on social networking. The core idea is to let users create profiles, connect with friends, post updates, and interact in real time, but I’m deliberately keeping the feature set flexible so we can iterate together as the concept evolves. Here’s what I need from you: • A solid Android build (Kotlin or Java) that runs smoothly on current OS versions. • Clean, well-documented code pushed regularly to a Git repository. • An early prototype (APK) we can test on physical devices, followed by improvements based on feedback. • Basic backend integration—Firebase, Supabase, or a stack you recommend—for authentication, data storage, and push notifications. I’ll provide wire...

I want to launch a word-puzzle game exclusively for Android that can turn a profit on Google Play. The gameplay revolves around players arranging or guessing words, with a clear difficulty curve spread across multiple, well-balanced levels—the only mandatory feature at this stage. Please build the game in an engine you are comfortable with (Unity, Android Studio with Kotlin/Java, or Flutter are all fine) and include lightweight AdMob integration so the title can start generating revenue from day one. If you see other monetisation tactics that suit a word game, feel free to propose them, but keep the first release lean and focused on rock-solid core mechanics. Deliverables • Release-ready APK • Full source code and project files • Documentation on how to add or ...

Dukandar – Smart Offline Retail Business & Sales Ledger Dukandar is a modern Android-based business management application designed for small retailers, kirana stores, shopkeepers, and MSME businesses to digitally manage their daily sales, cash collections, online/UPI payments, expenses, profits, transaction history, and financial analytics — without depending on an active internet connection. The application follows an offline-first architecture, allowing business data to be stored locally and accessed instantly. It replaces traditional paper-based management with a clean, intuitive and mobile-friendly digital ledger. The app provides a centralized dashboard for monitoring Cash Collection, Online UPI Collection, Total Sales, Expenses and Net Profit, while its analytics...

I want to bring a new social‐networking idea to life on Android. The project starts with a clean slate, so you will be responsible for transforming my concept into a fully functioning app—from setting up the project structure through to a polished release build ready for Google Play. Core expectations • Design and develop the entire Android application in Kotlin or Java, following modern Material 3 guidelines. • Implement the essential social features we will finalise together (user sign-up/login, profile pages, posting, commenting, liking, real-time updates, and push notifications). • Connect the app to a secure, scalable backend of your choice (Firebase, AWS Amplify, custom REST, etc.) and document the API endpoints clearly for future maintenance. • Ens...

I need an Android APK that focuses on one clear flow: letting new or existing customers complete a payday-loan application quickly and securely. Core flow • Users land on an OTP screen, enter their phone number, and receive a one-time code to unlock the app. • After successful verification, they reach a single multi-step form that gathers their personal information (name and address), employment details, and bank information. • When the final step is submitted, the data should be stored safely in a backend or Firebase collection I can later review. Interface & tech notes • A lightweight, modern UI in Kotlin or Flutter is fine—choose whichever you work fastest in. • Keep the code organised so I can hand it to another developer later for interes...

I’m looking for a developer who can turn my idea into a fully functioning Android e-commerce app. The goal is to let users browse products, add them to a cart, and complete checkout smoothly on their phones. Key objectives • Build a clean, intuitive Android interface that loads quickly on mid-range devices. • Implement core e-commerce features: product listing, search and filtering, cart management, secure checkout, and basic order tracking. • Connect the app to a simple, well-documented backend (Firebase, Supabase, or another lightweight stack you’re comfortable with). • Integrate at least one popular payment gateway suitable for my target market. • Provide authentication via email or social accounts and store user data securely. Deliverables...

I want to bring “Good to my life” to the stores as a health-and-fitness mobile app focused purely on workout plans. The goal is a clean, intuitive experience that helps users choose or build routines, schedule them, and track completion without extra distractions. Here’s what I need: • Workout plans – the heart of the app. Users must be able to browse preset routines and create, edit, or duplicate their own plans. A simple calendar view for scheduling sessions and a progress log that checks off completed workouts will cover the first release. Everything else—nutrition or broader activity tracking—can wait; I prefer to keep v1 lightweight, fast, and maintainable. Please target both iOS and Android; the framework is up to you, as long as the UI fee...

I want to launch an Android app that lets users search a full catalogue of mutual funds, narrow the list with flexible filters (by category, risk, expense ratio, etc.), and then view clean side-by-side comparison charts of any funds they pick. MPAndroidChart—or another modern library—can be used for the graphing. Access to the app should be protected only by social-media sign-in. Google and Facebook SDK integration will be enough; I don’t need any email/password flow. Please build natively in Kotlin, following a clean MVVM pattern in Android Studio. I’ll hook up the final data source later, so include a well-defined repository layer and dummy REST endpoints plus a Room cache for smooth offline behaviour. Deliverables • Complete Android Studio projec...

I need a skilled Android developer to build a dedicated e-commerce application from the ground up. The core goal is to give users a smooth shopping experience on Android phones and tablets, so performance and intuitive UI patterns matter as much as clean code. Here are the essentials I must see in the first release: • Product catalog that lets shoppers browse, filter, and view detailed item pages • Shopping cart that updates in real time and persists between sessions • Secure payment-gateway integration (I’m open to Stripe, PayPal, or any PCI-compliant option you recommend) Everything should be written natively for Android—Kotlin is my preferred language, though Java is acceptable if it speeds up delivery. I will provide branding assets and product data ...

I’m ready to turn my concept into a polished Android application and need a developer who can take the idea from the first mock-up all the way to the Play Store. The focus is 100 % Android—iOS isn’t in scope for this phase—so deep experience with Android Studio, Kotlin or Java, Material Design, and the common Google Play services is essential. I’ll supply the core feature list and wireframes; you’ll translate them into clean, maintainable code, craft an intuitive UI, and set up analytics, crash reporting, and simple CI/CD. Along the way, please advise on testing, versioning, and publishing so we end up with an AAB/APK that’s fully Play Console-ready. Deliverables • Source code in my Git repository • Release-ready AAB/APK plus signed...

I need a lightweight Android app that can take data about an approaching chicken—distance, speed, or any other sensor input we decide on—and instantly predict the safest time for it to cross a road. The prediction should be shown on-screen in simple, clear language so a farmer or handler can act without hesitation. Core requirement • Predict road-crossing times in real time for a single or multiple chickens. I do not need location tracking or intersection alerts in this phase; the entire focus is on accurate, fast predictions and an intuitive user interface. Preferred approach You are free to work with native Android (Java or Kotlin) or a well-supported cross-platform stack such as Flutter or React Native as long as the final build runs smoothly on current Android v...

I’m building an Android-only mobile app and I need a self-contained AI “command skill” that works purely through typed input. The goal is simple: when a user enters a natural-language request in a text field, the skill should recognise intent, extract any required parameters, and hand the result back to the main app so we can trigger the correct feature or workflow. Here’s what matters most to me: • Accurate intent recognition on common, short queries as well as longer, conversational text. • Fast response times; round-trip latency under a second when using a cloud NLP service, or comparable speed when running locally with a lightweight on-device model. • A clean Android interface (Java or Kotlin—your choice) that exposes one callable fun...

I need a sleek, fully-functioning Android application where people can browse, search, and view detailed profiles of “rental boyfriends.” The first release is focused only on creating, editing, and showcasing user profiles—photos, short bios, preferences, and basic availability tags. No chat or booking flow is required yet; I simply want the profile layer done right so we can test the concept and gather early feedback. Core expectations • Native Android build (Java or Kotlin) with modern UI components that feel familiar to regular Play Store users. • Secure email / social sign-up and login, plus a lightweight admin view so I can verify and approve new profile submissions. • Cloud back-end of your choice—Firebase, Supabase, or a small custom A...

I’m developing a mobile application that must launch on both Android and iOS from a single code-base. Core functionality includes: • Secure user login • Credit/Debit Card Payment integration (Stripe, Braintree, or a comparable PCI-compliant SDK) • Order tracking with: – Real-time location tracking – Order status updates The interface should remain clean and responsive, and the back-end endpoints for authentication, payments, and tracking will be provided (or you can quote for building them if that’s your preference). Please outline: 1. Your suggested tech stack (e.g., Flutter, React Native, Kotlin/Swift separately, etc.) and why it fits. 2. A high-level milestone plan with estimated timeline for each phase. 3. Total cost and anything ...

I’m ready to bring a new social-networking experience to Android and need a developer who can take the idea from concept to a polished APK on Google Play. The goal is a smooth, modern interface that lets users create profiles, connect in real time, and share content easily. You would handle the full Android development cycle—UI/UX, front-end screens, back-end integration, and deployment. If you’re comfortable working with Kotlin or Java, Firebase or a comparable cloud back end, real-time messaging, push notifications, and secure user authentication, we’ll be on the same wavelength. Deliverables I’ll review for acceptance: • Interactive Figma or XML mock-ups for sign-off • Functioning Android app (API 28+) with key social features live on a ...

I’m building a full-scale OTT service inspired by Zee5 and now need the companion Android and iOS apps engineered from the ground up. The heart of the product is seamless, high-quality video delivery, so the app must comfortably handle both on-demand titles and a lineup of live TV channels with adaptive bitrate streaming, DRM protection and offline download capability where licences allow. Every user will sign in (email, social, or phone) and create individual profiles under the same account, so the codebase has to manage profile switching, watch-history separation and personalised recommendations in the future. Subscriptions will be taken through standard credit/debit card checkout on our server as well as native in-app purchases on Google Play and the App Store; you’ll wire ...

I’m building a platform where users can watch sponsored videos and earn money in return. The project has two fronts: a responsive web portal and a dedicated Android app that work seamlessly with the same back-end. Core flow • New visitors create an account or log in. • Inside their dashboard they see a queue of ads, watch them, and once the required viewing time elapses the reward is credited. • Earnings accumulate in a user wallet; when the balance reaches a threshold the user can cash out via an integrated payment gateway (PayPal, Stripe, or another widely supported option—you can recommend the best fit). • An admin panel lets me upload/manage ad inventory, set payout rates, monitor user activity, and handle withdrawal requests. • Each user...

Quiero desarrollar una aplicación Android que me permita cargar un PDF que contiene una o varias guías de envío (manejo dos plantillas distintas). La app debe: • Detectar cada guía dentro del PDF y extraer únicamente el nombre del destinatario y el número de guía. • Tomar el número de teléfono que aparece en la misma guía y usarlo como destinatario. • Enviar automáticamente un mensaje de WhatsApp mediante la API oficial de WhatsApp, incluyendo el nombre y el número de guía en un texto que yo pueda personalizar. • Procesar PDFs con varias guías, enviando un mensaje por cada registro extraído. • Mostrarme en pantalla una lista previa con la informaci&oacu...

I run MARG E Delivery and I’m looking to extend our operation with a dedicated Android application that focuses exclusively on driver management. The app’s two must-have capabilities are straightforward: • Driver assignment – I need to see available drivers, tap a button, and push the order to the right person instantly. • Route optimization – once an order is assigned, the app should calculate the most efficient path and display turn-by-turn navigation so drivers spend less time on the road and more time completing drops. Everything else in the workflow (tracking, notifications, basic profile details) should revolve around those two pillars. You’re free to choose the Android-friendly stack you’re most comfortable with—Kotlin, Java, o...

I’m building a small utility for Android-based televisions that shows a simple, scrollable list of named links after the user logs in with a username and password. Each list item carries an “Open” button which must launch the linked content in true full-screen, hiding every browser control so the TV looks as if it is running a native channel. From the back-office side, I need full control of that list: I should be able to add new links, rename existing ones, or wipe anything I no longer need. Those edits have to propagate instantly, without forcing end-users to download an updated APK. Once the core features are working, the project has to be prepared for the Google Play launch—signed AAB, package naming, and compliance checks included. Acceptance criteria &bul...

I am looking for an experienced Android app developer to build a robust and high-performing Live TV streaming application. I currently manage web-based streaming platforms and want to expand the experience into a dedicated Android mobile application. The application should seamlessly handle live video feeds, including a wide range of regional (Indian) and international television channels. Key Features & Requirements: User Authentication: A secure user registration and login system (e.g., Email/Password, Google Sign-In, or OTP) allowing users to create accounts, manage their profiles, and save their preferences. Advanced Video Player: Integration of a powerful native or custom video player (like ExoPlayer) that smoothly supports HLS (.m3u8) streaming protocols. Channel Categorizat...

I’m building “A.S Task Earner”, an Android application where users complete light-weight activities—primarily simple clicks, quizzes and other mini games—to collect coins they can later withdraw to a UPI account. Core user flow • Multi-method sign-in via Firebase Authentication (email + password, Google, and phone) • Home dashboard that shows a real-time task list served from Firebase Realtime Database • Coin wallet with live balance, withdrawal request form, and withdrawal history • Profile page plus FCM push notifications for new tasks, approvals, or general updates Admin console A separate web panel (any modern JS or Flutter web stack is fine) must let me: – View, search, and manage every user – Add, edit,...

I need a full-stack developer to build a Library Management System (Mobile & Web). Key features required: ​Book Catalog & Inventory: List all books with Title, Author, Category, Shelf Location, Price, and status (Available/Borrowed). ​Search & Filter: Instant search by Book Title, Author Name, Category, or ISBN. ​QR Code Scanning: Scan QR code on a book to instantly view book details and status, or issue/return books. ​Borrowing & Student Tracking: Track Student Name, ID, Issue Date, Due Date, borrowing duration, and overdue days count. ​Fine & Due Management: Automatic fine calculation for late returns and pending dues status per student. ​Admin Dashboard: Overview of total books, active borrowings, overdue alerts, and member management.

I need an Android application for our college library management project, and speed is critical—I’d like to see a working build as soon as possible. The heart of the app is a reliable, fast QR / barcode scanner that can read labels on every book in our collection. A successful scan should instantly pull up (or create) a record that stores the book title, author, call number, and any notes we decide to attach later. Beyond scanning, the app must let us: • add or edit book information manually when a code is missing or damaged • record the borrower’s name or student-ID with a single tap • set a due date and have it saved to the same record for quick lookup A clean, minimal interface is enough—functionality matters more than elaborate design. Y...

Saya mencari developer Android yang dapat membangun sebuah aplikasi media sosial end-to-end. Target platform-nya Android, dikembangkan secara native (Kotlin/Jetpack Compose) atau kerangka kerja modern setara. Fungsi inti yang saya butuhkan meliputi pembuatan akun, timeline bergulir, unggah foto & video, sistem pertemanan, serta notifikasi push. Saya sudah menyiapkan wireframe dasar dan ingin Anda membantu memoles UI/UX agar tampil ringan, intuitif, dan mendukung dark mode. Backend boleh memakai Firebase atau solusi cloud lain—saya terbuka untuk masukan arsitektur terbaik. Deliverable utama: • Kode sumber lengkap (front-end + konfigurasi backend) • APK debug dan rilis beserta petunjuk build & deploy • Dokumentasi teknis singkat • Satu putaran ...

I need an Android application that lets on-site guards log their patrol routes and confirm every checkpoint by scanning a QR code. Each scan, together with a timestamp and GPS position, should sync instantly to a web-based admin panel that supports true multi-tenant use—every client company must only see its own guards, sites, and data. Inside the mobile app guards must also be able to file any security-related incident on the spot, attaching photos, short videos, voice notes, or text. At a minimum the system has to cover breaches and suspicious activities, but I am happy for the incident module to be flexible enough to add further categories later. The admin panel will let supervisors create companies, upload site maps, generate QR codes for checkpoints, schedule patrols, and watc...

I need a straightforward mobile app that quietly records where the phone has been and lets me review that trail later. It must work on both iOS and Android, so feel free to reach for React Native, Flutter, or separate Swift / Kotlin builds—whichever you’re fastest with. Core requirements • Capture the device’s location once every hour in the background. • For each entry I only need the timestamp and a human-readable address; raw coordinates are not required. • Store the history locally and display it in a simple chronological list within the app. A basic export function (CSV or JSON) would be a welcome extra but isn’t mandatory. I’ll consider the job complete when I can install an IPA/APK, see hourly entries accumulating with correct dat...

Looking for a part-time Android developer to help polish and extend an existing production app (Kotlin, Jetpack Compose, Hilt, Room, multi-module Gradle). I handle product direction and design; you handle execution using AI coding tools (Claude Code / Cursor) to move fast, then verify the output yourself before shipping. You should have: 2-3 years Android dev, strong in Kotlin + Jetpack Compose (real production apps, not just courses) Comfortable with Hilt, Coroutines/Flow, Room Active daily user of an AI coding assistant (Claude Code, Cursor, Copilot) — know how to prompt it AND how to catch when it's wrong Can follow a design spec exactly, no improvising on UI Own an Android phone to test on (budget phone like Redmi/Realme is a plus) Work: Bug fixes and feature builds from a...

I’m ready to move from spreadsheets to a unified fleet management system and have already chosen Traccar for GPS data and Odoo as the business backbone. I need someone who can tie these two platforms together and deliver a working solution that covers the core needs of my operation. Scope of work • Configure and deploy a Traccar server that reliably captures real-time GPS data from all vehicles. • Create or adapt Odoo modules to store that data and expose it to three distinct roles—Admin, Fleet Manager, and Driver—each with the right permissions and views. • Integrate vehicle tracking, maintenance scheduling, fuel management, and payment processing for platform usage so everything sits in one dashboard. • Build real-time analytics for daily oper...

I’m ready to roll out a new version of both my mobile app and its companion website, and I need your expertise to make the upgrades smooth and impactful. On the app side, I want a clean, professional-corporate user interface, stronger security from front end to backend, and noticeable performance gains in launch time and resource use. For the website, the focus is on streamlining navigation, putting a more intuitive content-management system in place, and ensuring every page is fully responsive across devices while matching the app’s refreshed look. Deliverables • Redesigned app UI in the agreed corporate style • Documented security hardening for the app (code and server) • Performance optimisation with before-and-after metrics • Reworked site...