The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Java is a versatile, object-oriented programming language that is widely used for software development across various industries. Java Developers can help clients create anything from complex web applications to automated trading bots and mobile apps. With their advanced skills and knowledge, they can turn your vision into reality, providing you with tailored solutions that align with your business goals. Here are some recent projects that our expert Java Developers made real:
Hiring Java Developers on Freelancer.com gives you access to a global pool of talented professionals who can deliver high-quality solutions tailored to your needs. Our platform makes it easy and convenient to find, hire, and collaborate with skilled Java experts from around the world. So why wait? Bring your ideas to life by posting your own project and hiring a Java Developer on Freelancer.com today!
Od 247,759 recenzí, klienti hodnotí našeho pracovníka Java Developers 4.9 z 5 hvězd.Java is a versatile, object-oriented programming language that is widely used for software development across various industries. Java Developers can help clients create anything from complex web applications to automated trading bots and mobile apps. With their advanced skills and knowledge, they can turn your vision into reality, providing you with tailored solutions that align with your business goals. Here are some recent projects that our expert Java Developers made real:
Hiring Java Developers on Freelancer.com gives you access to a global pool of talented professionals who can deliver high-quality solutions tailored to your needs. Our platform makes it easy and convenient to find, hire, and collaborate with skilled Java experts from around the world. So why wait? Bring your ideas to life by posting your own project and hiring a Java Developer on Freelancer.com today!
Od 247,759 recenzí, klienti hodnotí našeho pracovníka Java Developers 4.9 z 5 hvězd.I want to launch a native Android application that makes it easy for drivers to book on-demand car washing and cleaning. The build needs three distinct roles: • Customer – register or sign in, choose a wash or deep-clean package, set location, pick a time slot, and confirm payment; then receive push notifications as the service provider accepts, starts and completes the job. • Service Provider – get a real-time list of assigned bookings, update each step of the service, upload before/after photos if needed, and track daily earnings. • Admin – oversee user accounts, pricing, service categories, promo codes and a live dashboard of all current jobs. Core requirements – Android-only release, produced with Kotlin or Java; Flutter is fine if the ...
I have a web application that is already complete and finished. I need help preparing and publishing it to Google Play Store as an Android application using WebView. No complex programming is required, just create the Android wrapper, configure everything correctly, and upload it to the store. What I need the freelancer to do: - Create a simple Android app that displays my web application inside a WebView. - Configure the package, app name, icon, basic permissions (for example, Internet access) and necessary screens to comply with Google Play policies. - Prepare all necessary resources for publication (screenshots, APK/AAB signature, etc.), using content from my web app. - Guide me or take charge of the entire upload and publication process on Google Play Store until the app is visible. ...
I need an experienced Android developer to turn my concept for a new social-media app into a functional, polished product. The core idea, visuals, and basic user flows are ready; what I’m missing is someone who can translate that vision into clean Kotlin/Java code, wire it up to a scalable back-end, and publish a rock-solid APK to the Play Store. Key goals • Create a modern Android-only application that lets users create profiles, follow each other, post text and images, and interact through likes or comments. • Implement secure authentication, preferably with Firebase Auth or a comparable solution. • Set up a real-time database or RESTful API for posts, profiles, and notifications. • Handle image upload/compression efficiently so the feed stays fast even...
I want to launch an Android-only entertainment app that feels fresh, clean, and on-brand in a blue-and-white colour scheme. The single must-have feature is real-time chat: users need to jump into a conversation quickly, exchange text in a responsive thread, and see typing or read indicators just as naturally as they do in today’s popular messengers. Beyond the chat module, the overall experience should remain light, fun, and visually consistent with the chosen palette—from the splash screen through every screen transition. Whether you build natively in Kotlin/Java or rely on a lightweight framework that still compiles to a smooth APK, the end result has to meet standard Google Play guidelines and feel fluid on modern Android devices. Deliverables • Interactive UI moc...
I already own the Wowonder timeline source and need a developer who can extend it in three focused areas before handing back a fully compiled, ready-to-publish script. 1) Private messaging button I want a native “Message” action on timelines so users can jump straight into one-to-one chats. This replaces the need for Live Streaming or Story-like additions; the emphasis is a clean, reliable private-messaging flow that feels built-in, not bolted-on. 2) New ad platform integration Integrate my chosen monetisation SDK (I’ll supply the credentials and docs) and wire up the ad unit(s) so banners, interstitials or any supported format actually render inside the app. The integration must respect Wowonder’s existing codebase, keep load times light, and give me a ...
I have a utility-focused web application built entirely in React and I’m ready to turn it into a full-fledged Android app. The codebase is clean and modular; what I need is an experienced mobile developer who can wrap or rebuild the existing React components so they run smoothly on Android, take advantage of native performance, and preserve every current feature. Beyond the straight conversion, two additions are essential: • Firebase Cloud Messaging must be wired up for real-time push notifications. I already have a Firebase project ID; you’ll configure the Android app, handle the token lifecycle, and confirm notifications arrive when the app is foregrounded, backgrounded, or closed. • In-app geolocation marking. A simple tap should capture the user’s locatio...
I need a seasoned Android developer to create a virtual camera that lets me play a pre-recorded video file as if it were a live feed. Once installed, the VCam should register at system level so any app that normally offers the “rear” or “front” camera can instead pick this virtual source. Core workflow I’m after: • Simple selector to choose or change the MP4/-MOV clip that will loop (or optionally stop at the end). • When chosen in a call, the video must stream smoothly at common resolutions (720p and 1080p) without noticeable latency. • Audio is not required—video-only is fine. It needs to work across the usual suspects—video-conferencing, social, and messaging apps—so please avoid hacks that only function inside a single pa...
java springboot react and angular help needed. must be super expert in all three.
I want to bring a brand-new utility app to life, built exclusively for Android. The core idea is clear and focused: design, code, and deliver a lightweight, reliable tool that solves a specific everyday problem for users (full details will be shared once we kick off). Scope • End-to-end Android development: UI/UX design, front-end coding in Kotlin (or Java if there’s a compelling reason), and a modest backend or local data layer only if the feature set demands it. • Play-Store-ready package: signed APK/AAB, store-listing graphics, and concise release notes. • Clean, well-commented source code pushed to a private Git repo so I can follow progress day-to-day. • Quick start guide and one-page technical handover so future iterations remain straightforward. Acc...
$125 GUARANTEED PRIZE for the best Google Apps Script solution! I'm building a catalog of sellable Google Apps Script digital products. I need YOUR most creative, useful automation solution that small business owners and consultants would pay $25-50 for. WHAT I'M LOOKING FOR: Complete, working Google Apps Script solutions that solve real problems for: • Small business owners • Freelancers and consultants • Productivity enthusiasts • Anyone using Google Workspace IDEAL SUBMISSIONS: • AI-powered automations (ChatGPT/Claude API integrations) • Email automation tools (mail merge, auto-responders, attachment savers) • Invoice/document generators (Sheets to PDF to Email) • CRM and client management systems • Data importers and report ge...
About the Role We're a bootstrapped AI/ML startup (Toronto-based, two-person founding team) looking for a Full-Stack Agent Engineer + DevOps Engineer to take our OpenAI-powered agents and Streamlit dashboards from local development into production-ready cloud infrastructure. You'll own the entire software lifecycle—from writing agent logic and APIs to designing and deploying our AWS architecture. This is a 0-to-1 role: you'll architect our first cloud deployment, establish CI/CD practices, define our codebase standards, and prepare the foundation for future team growth. You'll report directly to the founders and have significant autonomy in technical decision-making. What You'll Build Agent & Backend Development (60%) Build scalable Python services tha...
Cambiar el diseño de mi pagina web en prestashop
Quiero poner en marcha una aplicación que permita a los conductores de grúa en España gestionar el transporte de coches desde un móvil Android y, cuando estén en la oficina, acceder exactamente a las mismas funciones desde un equipo con Windows (me da igual si se resuelve con una versión web progresiva o con un instalador de escritorio; lo importante es que la experiencia sea fluida en ambos entornos). Funcionalidades clave que necesito: • Rastreo de ubicación de la recogida del vehiculo y de la entrega • Notificaciones push inmediatas ante cualquier cambio de estado (carga, salida, llegada, incidencias). El inicio de sesión debe ser sencillo: correo electrónico y contraseña, con la posibilidad de recordar se...
I’m working inside a Jupyter Notebook that contains several deep learning models for IMU fusion and activity recognition. The current accuracy is around 60%, but my target is at least 95%. i need to run the notebook on a high-performance GPU environment (such as an NVIDIA A100, V100, or T4) because the dataset is quite large and each model requires about 50 epochs of training, which takes several hours on CPU. task is to: Review the full deep learning pipeline (data preprocessing, normalization, window segmentation, and fusion setup). Tune the architectures if needed. Optimize training parameters (batch size, learning rate, dropout, and scheduler). Ensure class balance and correct label mapping Add early stopping and performance tracking per epoch. Provide comparisons showin...
I’m taking a Coursera course that teaches programming in Java and I’m getting bogged down by the weekly graded problems. The assignments sit squarely in the beginner to intermediate bracket—think loops, arrays, simple algorithms, and introductory object-oriented patterns—but they still need to compile flawlessly and satisfy the platform’s strict auto-grader. What I need is straightforward: whenever a new problem drops, I’ll send you the prompt and any starter code; you return clean, well-commented Java that the grader accepts, along with a concise explanation of your approach so I can follow the logic and learn from it. The course uses the standard JDK 11 environment Coursera provides, so please code accordingly and avoid external libraries unless the t...
I need an experienced developer to create an automation app for Android. The app's main purpose is to automate various tasks on a App. Key Requirements: - Must be compatible with Android - Ability to automate diverse tasks Ideal Skills and Experience: - Proficiency in Android app development - Experience with automation tools and frameworks - Strong problem-solving skills - Familiarity with Android UI/UX design Please provide examples of similar work done.
Necesito desarrollar con Processing una experiencia interactiva y todavía estoy terminando de definir si tomará la forma de instalación artística, juego breve o visualización dinámica de datos. Me interesa que el código quede bien estructurado y comentado para poder iterar sobre él más adelante, por lo que valoro decisiones claras de arquitectura dentro del entorno Processing 4 (Java). A nivel de plataforma, elegiré entre web (), escritorio o incluso móvil una vez analicemos juntos el alcance y las ventajas de cada opción. De igual modo, la capa de interacción podría apoyarse en teclado / ratón, entrada de audio o algún sensor externo; lo importante es que la solución res...
We are seeking an experienced Software Engineer based in the USA who can combine strong technical expertise with effective client communication. The ideal candidate will be responsible for developing and maintaining software applications while professionally engaging with clients through email, calls, or virtual meetings, clearly understanding their requirements, translating them into technical solutions, and providing regular progress updates. This role also involves handling feedback, troubleshooting issues, and resolving technical problems efficiently. Candidates should have proven experience as a Software Engineer, strong English communication skills, experience in client handling and basic project management, and solid knowledge of relevant programming languages and frameworks.
Preciso de um desenvolvedor que domine 100% a linguagem Lua no ambiente Multi Theft Auto. A missão é erguer, do zero, um servidor focado em role-play robusto, porém com forte ênfase em combates PVP espalhados pela cidade. Trata-se de um projeto novo, portanto todas as bases — da arquitetura de recursos até as rotinas de banco de dados — serão criadas do início. Mostre provas concretas de experiência: quero ver servidores ou sistemas que você tenha construído e que eu possa acessar para teste. Escopo principal • Estrutura completa em Lua: módulos bem organizados para login, inventário, economia, facções e missões. • Interface do usuário personalizada (pain&...
We are looking for a skilled business data analyst to transform our datasets into meaningful insights and build a customized reporting dashboard. The ideal candidate will have strong experience in statistical analysis and data visualization tools, with the ability to present key metrics in a clear and impactful way. This project includes evaluating current business performance, uncovering trends, and converting complex data into actionable recommendations, as well as designing tailored reports that address our specific requirements. We value analytical and innovative thinkers who can strengthen our decision-making through effective, data-driven strategies.
I have a React Native mobile app that operates an industrial gearbox via Bluetooth. The development build is stable, but I now need a clean production bundle for Android. Your task is to run the Gradle step `app:createBundleReleaseJsAndAssets`, resolve any missing asset or dependency issues that surface, and hand back a signed AAB (or APK) that is ready for the Play Store or direct sideloading. Key points you’ll handle • Generate the release JavaScript bundle and all accompanying assets. • Fix build-time errors related to Metro, Gradle, ProGuard, or native modules if they appear. • Produce a single, signed release build (AAB preferred) along with the keystore configuration you used, plus a short text file noting every command or Gradle flag so I can repr...
Tengo en marcha un proyecto de propiedad intelectual enfocado a un sistema de apuestas para el Mundial de Fútbol. El código base ya existe, pero he detectado errores de funcionalidad, concretamente en la lógica del juego: el cálculo de resultados no es correcto y está comprometiendo la fiabilidad de todo el modelo. Busco a alguien que viva en el área de San Nicolás de los Garza, N.L., México, y que disponga de tiempo suficiente para involucrarse a fondo. El sueldo es simbólico; la recompensa real es la posibilidad de integrarte como socio en la sociedad que estamos constituyendo alrededor de la plataforma. Necesito que entres al repositorio, identifiques las rutas de cálculo, depures las fórmulas y dejes cad...
I’m building a web-based space where our customers can log in, ask anything about our services, and receive instant, accurate replies without waiting for human agents. The core of the project is a trainable, scalable AI layer that understands natural language, learns from every interaction, and keeps improving its answers over time. Here’s the flow I have in mind: • A clean, friction-less sign-up / sign-in experience (email-password as a minimum, but your framework can keep the door open for social or two-factor later). • An intuitive dashboard where users submit questions, see conversation history, and track ticket status. • A back-office module for us to feed new training data, review edge-case queries, and export reports. • An AI engine—Tenso...
I need a small, fast bot that monitors Amazon Flex exclusively for Whole Foods Market “Instant Offers,” ignores every other kind of block, and snaps the offer up for me the moment it appears. As soon as the grab is confirmed I want a push notification on my phone so I know the run is locked in. Speed and reliability matter more than anything else; missing an offer because of a slow poll or an unhandled captcha defeats the purpose. Please build it so I can log in with my own Flex credentials, handle two-factor prompts, and specify my preferred delivery zone or mileage limit. A simple start/stop panel or command-line toggle is plenty as long as I have clear setup instructions. Deliverables • Compiled bot or script plus readable source • Quick-start guide that lets...
I need a minimal Jakarta EE proof-of-concept made of two parts: • An JakartaEE EAR project composed by an EJB module that exposes two simple remote and local methods returning “Hello World”, and a simple servlet who connect to the EJB. The EAR must be packaged and deployed on GlassFish 7, so the EJB can be looked up over RMI/IIOP (JNDI name is up to you). • A lightweight Java SE console client that runs on another machine, resolves the remote interface through JNDI and prints the returned message. Please build with either NetBeans or VS Code; feel free to use Maven for clean dependency management. I will supply two separate computers running JDK 17 and GlassFish 7, so the deliverable has to work in that environment without extra tweaks. What I expect from ...
I have a new web application underway and now need a developer who can own both sides of the stack. The frontend is to be written in React, the backend in Node/Express, and I’d like everything wired to a MongoDB database. You’ll set up the REST (or GraphQL, if you feel it fits better) services, build the React components, connect them to the API, and deploy a working MVP that I can test end-to-end. Clean folder structure, reusable hooks, proper error handling, and readable code comments are essential. Deliverable: • A Git-based repo containing the full React app, Node API, and MongoDB schema/config • A short README with setup steps and any environment variables Once the MVP is live I will review it for functionality, code clarity, and ease of local setup. I...
I already have an XML file that acts as the configuration backbone for my project, but I suspect it carries validation issues that are starting to surface in production. I need a close, methodical audit of the file—look at the schema compliance, catch any malformed nodes or attributes, resolve namespace inconsistencies, and ensure all values pass proper validation. Once the analysis is complete, please deliver the corrected XML along with a concise change log so I can see exactly what was adjusted and why. If you plan to use tools such as XSD validation, XPath, or automated linting, feel free—just make sure the final file is 100 % error-free and loads cleanly in any standards-compliant parser. Turnaround is important to me, but correctness is paramount. Let me know your e...
Summary Job Description We already have a working AI chatbot automation built in n8n. What is already implemented AI chatbot workflow built in n8n Chat triggers via messaging channels (Telegram / WhatsApp) web scraping tool integrated AI agent answers user questions based on scraped page content Basic memory handling inside the AI agent The chatbot currently scrapes pages on demand (per request) This part is already done and functional. What needs to be added / improved We are looking for an experienced n8n + AI automation specialist to extend this system with a scalable knowledge architecture. Website crawler & page discovery Automatically crawl a website starting from a base URL Identify and collect relevant pages only (exclude media, junk, duplicate, tracking URLs) Support d...
I need an experienced Eclipse platform plug-in developer to replace all instances of with the modern extension point for menus in my software. Another issues is facing post installation issue after “Install New Software” when regular update fix applied, required to fix that. If you know your way around the Eclipse SDK, extension points, feature updates and OSGi bundles, this should be straightforward. Must have to connect and work remotely in my environment and have to explain once after implemented.
I want a self-contained AI tutor that runs entirely on a Raspberry Pi zero w . Once installed it should let students ask anything—from world facts to coding techniques, web-design tips, image-generation prompts or audio questions—and get answers back in text, spoken audio, short video snippets, or illustrative images. Beyond answering queries, the system must also create fresh practice material: both multiple-choice and open-ended questions suitable for competitive exam preparation, complete with model answers and explanations. Key expectations • Works offline on a stock Raspberry Pi 3 with no cloud calls. • Covers “all world knowledge” plus programming, web design, image generation and audio processing. • Delivers responses in text, audio, ...
A time-sensitive project needs to move from concept to a polished Flutter application as quickly as possible. The goal is to deliver a rock-solid, production-ready build that runs smoothly on both iOS and Android and is ready for submission to the respective stores. Scope • Set up a clean Flutter codebase that follows best practices for state management, navigation, and theming. • Implement the core screens and reusable UI components based on the wireframes I will share on day one. • Integrate essential services—secure user data handling, API consumption, and persistent local storage—using proven packages (e.g., provider/bloc, Dio/Retrofit, Hive/Shared Preferences). • Provide buildable release APK/IPA files plus the complete, well-documented source ...
I run a small transport fleet and I’m ready to digitise the day-to-day paperwork my drivers juggle. What I need is a straightforward Android application that lets each driver log in with a unique ID, record every leg of a trip, and push all the critical details straight to my admin dashboard. Core workflow • A driver signs in, taps “Start Load”, and the app captures the current GPS location and date-time stamp automatically. • They fill in truck weight, freight value, expected diesel, and snap a photo of the weigh-bridge slip. • On arrival, they tap “Unload”, the app grabs the new GPS point and time, and they add the final weight, diesel used, and payment received. Everything from location and time to cost, diesel usage, and photos mus...
I’m planning to release a new Android-based game and need a developer who can take it from concept to a polished APK on Google Play. The project is purely mobile—no web or iOS components—so your focus will be on Android Studio, Java / Kotlin or a preferred game engine such as Unity or Godot. Here’s what I have in mind: • Core gameplay loop, menus, and simple in-app sound effects • Clean, responsive UI that scales well across common screen sizes • Integration of basic ads or rewarded video (AdMob or similar) • Documentation plus full source code so future updates are straightforward Once the first playable build is ready, I’ll test it on a range of devices and send feedback; we’ll iterate until the final version is stable and...
I need a complete, dynamic website made up of ten pages that cover our core company information and a dedicated career section. From the admin side I’ll manage everything through a single-login dashboard, so please keep the user role structure simple—one super-admin account with full control. Key functions I want built in: • Easy page editing for all ten sections (text, images, metadata). • A job-posting module where I can create, edit, activate or archive openings. • An application form attached to each opening that lets candidates upload a file (typically a résumé in PDF or DOC). The uploaded files should land in a secure, downloadable list inside the dashboard and trigger an email notification. The front end needs to be responsive, fa...
I’m building a modern-looking Android app that takes over the entire call experience. The app must answer or hang up when I say a custom hotword, whether I’m speaking into the phone’s mic or through a Bluetooth headset. Everything has to run locally with open-source speech tools only—no cloud services or proprietary SDKs. What I need you to deliver: • A full-screen Material-style dialer, incoming-call, and in-call interface that cleanly replaces the stock UI. • Seamless hotword detection that keeps listening in standby and during calls, mapped to “answer” and “disconnect”. The hotword itself will be custom, and I’d like an easy way to swap it later. • Integration of open-source speech engines—please evaluate ...
I need a complete e-commerce website powered by WordPress and WooCommerce. The store must feel fast, modern, and mobile-friendly, with a clean product catalogue, smooth cart flow, and a secure checkout that runs through Stripe. Core expectations • Install and configure WordPress + WooCommerce on my hosting. • Customise a theme (your suggestion or a lightweight premium option I’ll purchase) so the look matches my brand colours and typography. • Set up product, category, and attribute templates so I can add items easily on my own. • Enable Stripe for payments, making sure test and live keys swap correctly and webhooks fire for order status updates. • Optimise page speed, image sizing, and caching so Core Web Vitals remain in the green. • Harde...
I need an expert to create a complete AI evaluation task from scratch, including: 1. Prompt Creation Write a high-quality, clear, realistic scenario prompt aligned with AML/CTF compliance concepts. Must follow strict clarity, realism, neutrality, and temporal-stability rules. The prompt must be fully original and pass automated validation (Rhea validator). 2. Rubric Development Create 45 evaluation rubrics total: 26 positive, 19 negative Each rubric must include: A score weight (integers only, no decimals) A clear criterion A justification Source citations (e.g., regulations, official guidance) Weights must be diverse and consistent across the rubric set. 3. Automated Validator Compliance The final deliverables must pass validation with: No scale-consistency errors No weig...
I already have the sensor-enabled trash bins in place; what I still need is the Android side that turns their data into timely, actionable notifications. The single purpose of this first release is clear: whenever a bin signals it is ready for emptying, the user’s phone should display a push notification through the mobile app—no email or SMS for now. Here is what I expect delivered: • A lightweight Android app (Android 8.0+) able to register devices, subscribe to a specific bin ID or topic, and receive push notifications in real time. • A simple dashboard screen listing connected bins with their latest status (full, cleared, battery low, etc.). • Code for the notification gateway or integration instructions if you prefer to hook into Firebase Cloud Messagin...
I'm looking for a US based freealncer, with at least 3 samples they can provide of similar projects done in the past. I’m launching a new online store and want the entire solution built with Java 17 and Spring Boot, structured as a “service-based monolith” that can be split into microservices later. The core modules should cover catalog, cart, checkout, user accounts, and order management, with clean REST APIs between them. We are open to improvements for the below requirements. Technology Stack: ● Frontend: React/ ● Backend: Java Spring Boot ● API Gateway: Kong or AWS API Gateway ● Databases: PostgreSQL + MongoDB ● Search Engine: Elasticsearch Cluster ● Message Queue: RabbitMQ or AWS SQS ● Cache: Redis Cluster ● Hosting: AWS (ECS/EKS) Core Services (7 Services): ...
I'm seeking a skilled Minecraft mod developer to create a Harry Potter/Hogwarts-themed mod. This mod should function similarly to the "Minecraft Comes Alive" mod. Key Features: - NPCs as Hogwarts characters - Interactive quests and storylines - Customizable player Hogwarts experience - Compatibility with existing Minecraft versions -adding wands and magic similar to the movies -adding the hogwarts castle and any other building from the harry potter movies -adding a boss which is Voldemort who is nearly impossible to kill Ideal Skills: - Proficiency in Minecraft modding - Experience with Java and Minecraft Forge - Strong understanding of Minecraft mechanics and NPC behavior - Creative mindset for quest and storyline development Please include examples of previous modding w...
Cuento con un software de gestión de aparcamiento que, al final de cada turno, deja en una carpeta varios ficheros CSV y TXT con los números de matrícula y su marca temporal. Busco un pequeño módulo que lea esos archivos en modo lectura por lotes, almacene los registros temporalmente y, una vez completada la carga, genere la petición al servicio SOAP “MovimientosParking” de MadMovilidad utilizando su WSDL oficial. El flujo ideal sería: • Detector de nuevas remesas de archivos en la carpeta compartida. • Parseo e inserción en una cola interna. • Envío agrupado de los datos a la API, firmando la conexión HTTPS con nuestro certificado digital (formato PFX). • Registro en un log plano o...
I. Core Requirements 1. The contractor must decompress the client-provided target software APK installation package, perform static/dynamic analysis, and identify the software's core data structures and interaction logic. 2. Develop a lightweight dynamic library for visualizing internal test data. This function is hidden by default and requires a specific gesture/password to activate. 3. After dynamic library injection, the software must be able to seamlessly connect to the original server, run normally, and not trigger anti-fraud mechanisms on the server or client. 4. Using an authorization code, this function can only be installed and run on authorized devices; it cannot be activated on unauthorized devices. II. Technical Requirements 1. Use legal and compliant tools for APK d...
I’m ready to move forward with a mobile app project that will run natively on Android. At this stage I have the core idea, basic user flows, and a clear picture of the value the app must deliver, but I need an experienced developer to turn those notes into a polished, production-ready application. Because this is strictly an Android build, you should be comfortable working with current Android SDKs, Kotlin or Java, Android Studio, and the typical Google Play release pipeline. I value clean architecture, thoughtful UI that follows Material Design guidelines, and maintainable, well-documented code. If you can also advise on best practices for performance, accessibility, and backward compatibility, that’s a strong plus. My timeline is flexible enough to allow for proper planning...
I. Core Requirements 1. The contractor must decompress the client-provided target software APK installation package, perform static/dynamic analysis, and identify the software's core data structures and interaction logic. 2. Develop a lightweight dynamic library for visualizing internal test data. This function is hidden by default and requires a specific gesture/password to activate. 3. After dynamic library injection, the software must be able to seamlessly connect to the original server, run normally, and not trigger anti-fraud mechanisms on the server or client. 4. Using an authorization code, this function can only be installed and run on authorized devices; it cannot be activated on unauthorized devices. II. Technical Requirements 1. Use legal and compliant tools for APK d...
I need a conversational bot that sits on my website and returns precise answers pulled directly from my document collection. The focus is pure information retrieval—no sales pitches or account look-ups—so every feature you build should revolve around searching, parsing and presenting the right excerpts from those files. Here’s what I’m after: • A web-embedded chat interface that blends smoothly with my existing site design. • Back-end logic that indexes my provided documents (PDF, Word and similar formats) and makes them queryable in natural language. • Fast, relevant responses that quote or reference the source passage so the user can verify the answer. • An easy way for me to add, remove or update documents without redeploying the who...
Hi I will share the details with the shortlisted candidates. Thanks
I need a complete Android solution that lets me manage three distinct client categories—Particuliers, Entreprises and Associations—from a single back-office while offering each user a simple sign-up journey in French, English and Arabic. Core experience When the app opens, users see three prominent buttons, one per category. Tapping a button launches the appropriate registration flow. Below the buttons, a real-time list of already registered clients is displayed; this list is pushed from the administrator side rather than stored locally on each device, so updates appear instantly. Administrator side Through a secure web or in-app admin panel I want to: • Create, suspend or delete client accounts • Publish or unpublish the live list that appears on every hand...
I have a web-to-app project that already uses Firebase Cloud Messaging. Tokens generate correctly and a manual test from the Firebase console lands on the intended Android device, yet the automatic notifications that should fire from our back-end never reach either the web version or the Android web-app wrapper. Here’s the current setup: • Original website relied on Firebase Web Push. • Site was converted into a WebView-based Android app. • I added native FCM to regain push support—tokens look fine. • Cloud Functions (Node.js) create the notification payloads, log “message sent,” but nothing shows up on devices unless I issue a direct console test. What I need: 1. Diagnose why production events are not triggering visible notifications in the An...
I’m working on a Java Spring Boot micro-services application and need a seasoned hand to straighten out a few points and help me close some production Jira tickets. Most of my questions revolve around how the services talk to each other—specifically, how data moves between them in both synchronous calls (REST, gRPC or similar) and asynchronous flows (message queues, Kafka, etc.). I’d like you to walk me through the current interaction patterns, point out bottlenecks or anti-patterns, and suggest improvements. At the same time, I’ll share a small batch of Jira issues that are already reproduced in our lower environment. They typically involve cross-service data consistency or timing problems. Your role is to propose—and, if feasible within the scope, demo&m...
I’m building an education-centric Android application (Shiksha) dedicated to Bhasha Adhyayan, and the very first language we will teach is Hindi. The goal is a clean, engaging mobile experience that can take a learner from recognising the alphabet to holding short conversations. You’ll turn my prepared lesson outline into a native Android product using modern practices—Material Design components, Kotlin (or well-structured Java), MVVM architecture, local storage for offline study, and Text-to-Speech for clear pronunciation. A light layer of gamified quizzes and simple progress tracking will keep users motivated without clutter. Deliverables • Complete Android Studio project with readable source code • Signed APK / AAB ready for Play Console upload •...
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