Java jobs

I am a Software Developer with over 7 years of hands-on experience in Java and AWS services, and I am excited to begin my freelancing journey on Upwork. Throughout my professional career, I have designed, developed, and maintained scalable, secure, and high-performance applications while ensuring reliability and cost-efficient cloud operations. My expertise includes core Java development, Spring-based applications, REST APIs, AWS services such as Lambda, ECS, DynamoDB, S3, CloudWatch, and Infrastructure as Code using Terraform. I focus on writing clean, maintainable code, delivering production-ready solutions, and resolving issues quickly to keep systems stable and secure. As I start my freelancing career, I am fully committed to delivering high-quality work, meeting deadli...

...rock-solid productivity tool to life: a stand-alone Android app focused entirely on task management. The goal is to give users an uncluttered place to create, edit, prioritise, and complete tasks without needing any extra sign-ups or online services. Here is what I need delivered: • An APK ready for Play-Store submission, plus the full, well-commented source code (Android Studio in Kotlin or Java is fine). • A clean, responsive UI that works smoothly from Android 8.0 up to the latest version. • Core features: add, delete, reorder, and mark tasks as done; assign due dates or simple reminders; quick search or filter by status. • All data stored locally so the app functions fully offline. • Basic settings page (dark/light mode and notification tog...

... and free of design elements that might trip automated parsers—yet still feel fresh and engaging to a hiring manager. Context • I’m a final-year Computer Science student with no professional experience beyond class assignments and capstone work. • Target audience: recruiters screening candidates for web-development internships. • Core skills that need prominence: Python, HTML, CSS, basic Java, basic SQL, and general web-development know-how. What you’ll receive from me Personal and contact details, education history, a concise list of skills, and short write-ups of my key academic projects. Your task Craft an ATS-optimized résumé in professional English, trimmed to a single page, and deliver it as an editable DOCX file...

I have an existing Android app that is stable but still very lean on features. The immediate goal is two-fold: first, roll out a new “upload” capability inside the app (users...securely to our backend); second, compile, sign, and publish the updated build to the Google Play Console so the change is live for all users. The current stack is Kotlin with standard Android Jetpack libraries; the backend is ready and exposes a REST endpoint for the upload, so the mobile side only needs to handle file selection, progress indication, and a simple success/fail response. If you prefer Java that’s fine—as long as the final APK/AAB plays nicely with our existing codebase. Deliverables • Updated versionCode / versionName and release notes prepared in the Play Cons...

...scalable Selenium WebDriver framework in Java that any engineer on my team can pick up and extend. It must follow the Page Object Model throughout, execute through TestNG, and generate rich reports with either Extent or Allure—whichever you feel gives the clearest insights. Parallel execution is a must, and every test should run reliably on Chrome, Firefox, and Edge. Running the suite in headless mode isn’t required for now. A tidy repository structure, meaningful package naming, and a well-commented README are just as important to me as the code itself, so please factor that documentation time in. All work will be version-controlled in a new GitHub repository that you initiate and populate with an agreed branching model. Deliverables • Maven-based Java...

I need the official open-source Java backed of our project deployed, configured, and ready for continuous delivery. The source code is stable; what’s missing is a production-grade environment that handles build, test, and roll-out with minimal manual touch points. Here is the flow I have in mind: 1. Hybrid database approach Distributed Cluster (3 VPS server) 2. Containerize the application with Docker and automate builds via Maven or Gradle. 3. Primary Databases for Chat History Cassandra (NoSQL) 4. Secondary Databases PostgreSQL (for users Metadata) on the codebase’s data model. 5. Redis : Presence/Session 6. Backed Language: Spring Boot Java 21/25 with RabbitMQ,and Maven or Gradle configuratio 7. Real-time: WebSockets for bidirectional communication 8. a...

Project Description: Fix Failed Test Cases in Cucumber-with-Java Framework (IntelliJ) I have an existing Cucumber-with-Java automation framework built in IntelliJ, and I’m looking for an experienced Automation QA engineer to help fix several failing test cases. Some tests are running successfully, but a few are consistently failing due to errors that need expert debugging and correction. The framework is already set up with: Cucumber + Java Selenium WebDriver for UI interactions Maven for build management Running tests directly from IntelliJ What I Need From You: Review the existing project structure and identify the root cause of failing test cases. Debug, fix, and optimize the failing step definitions, locators, hooks, runner files, or any configuratio...

...meetings—similar in feel to Google Meet but trimmed to the essentials. The app must support up to ten participants in a room with smooth audio-video, built-in screen sharing, and an in-call text chat. Recording is outside the scope for this first release. WebRTC is the obvious backbone, and I’m happy with Firebase (or a comparable signaling service) alongside the standard Android SDK in either Kotlin or Java. If you have a different, battle-tested stack that hits the same quality targets, propose it and explain why. Deliverables • Release-ready APK plus Play Store–compliant build bundle • Fully commented source code in a public or private repo • README covering build steps, environment setup, and how to deploy/replace the signaling layer ...

Looking for Interview Support for Mid-Senior level Software Engineer roles at Big Tech/FAANG companies (SDE II/Senior Software Engineer). Need an expert who is good with data structures & algorithms, System Design and Behavioral interview stories. Looking for someone who has exceptional experience with Distributed Systems, Event-driven Architecture, designing fau...Support for Mid-Senior level Software Engineer roles at Big Tech/FAANG companies (SDE II/Senior Software Engineer). Need an expert who is good with data structures & algorithms, System Design and Behavioral interview stories. Looking for someone who has exceptional experience with Distributed Systems, Event-driven Architecture, designing fault tolerant systems and handling scaling especially with Java and Python b...

I’m gearing up for Big Tech companies Mid-level to Senior Backend Engineer roles and I am looking for interview guidance and support for the same who is very good with data structures & algorithms, System Design and Behavioral Interview. and I’d like expert guidance to sharpen my performance. The position I’m targeting leans heavily on Java and Python. If you’ve successfully coached other backend candidates or conducted interviews yourself, I’m ready to start right away and can adapt to your preferred scheduling and tooling.

...Create API-based integrations between different systems - Manage and troubleshoot servers (SSH, root access) - Diagnose and resolve technical issues - Optimize systems for security, performance, and scalability - Create clear, well-structured documentation for processes and code Must-Have Requirements - Proven experience with WordPress - Strong command of HTML, CSS, and JavaScript - Java knowledge - Practical, hands-on experience with MongoDB - Real experience using GoHighLevel - Regular use of Zapier and n8n - Solid experience integrating systems via APIs - Strong knowledge of hosting, domains, and deployment - Ability to work independently, in an organized and responsible way Strongly Valued - Regular use of AI tools to speed up development, auto...

I need a versatile full-stack Java developer who can dedicate a full 8-hour shift aligned with Pacific Standard Time. The work revolves around a new enterprise platform we are rolling out internally, and I expect you to be comfortable owning both back-end Java code and the corresponding front-end layer. Scope of the build The application’s first release must cover three core capabilities: • User management • Data analytics • Workflow automation We will tackle these features in two-week Agile sprints, with planning, daily stand-ups, and sprint reviews held on my calendar in PST. You will demo working software at the end of every sprint so we can decide together what to refine next. Your day-to-day – Write clean, tested Java code and w...

1. Core Framework: Platform: 100% Native Android (Kotlin or Java). Strictly NO WebView or Hybrid frameworks. Database: Real-time synchronization with a secure web-based Admin Panel. 2. Task & AdMob Integration (Full Security): Flow: User clicks Task -> Trigger AdMob Interstitial/Rewarded Ad -> Redirect to YouTube/TikTok/FB -> Task Verified. Server-Side Callbacks: Use server-side validation for AdMob rewards to prevent ad-skipping hacks. Frequency Capping: Strict limit of 4 ads per device/day to protect AdMob account health. 3. 6-Level Referral & Salary Logic: Architecture: Automated server-side tracking for a 6-level referral hierarchy. Milestones: Auto-trigger "Monthly Salary" status once user reach invite targets (e.g., 200, 500, 1000 invites). Dashboard...

AI Engineer / AI Agent Architect – ERP Platform (Monolithic Java, MySQL, SaaS) We are developing a multi-tenant ERP platform currently built as a Java Spring Boot monolithic application with MySQL as the database and Angular as the frontend. While our long-term roadmap includes migration to microservices, the immediate objective is to safely introduce an AI-powered intelligence layer without disrupting the monolithic ERP core. Objective of the Role Design and implement an external AI intelligence layer that integrates with our existing monolithic ERP to provide: Business analytics and dashboards Predictive insights and forecasts Alerts, reminders, and anomaly detection Conversational ERP intelligence (AI Copilot) The AI must be ERP-aware, secure, tenant-isolate...

Required Skills • 6+ years of professional software development experience • Strong expertise in Java as the backend language • Hands-on frontend development with ReactJS and modern TypeScript • Proficient in SQL with any relational database (e.g., PostgreSQL, MySQL, etc.) • Solid understanding of software engineering best practices and testing • Experience building and maintaining scalable full stack applications • Strong communication and team collaboration skills • Expertise with Python and various python packages Preferred Skills • Advanced SQL with PostgreSQL: joins, subqueries, CTEs, and query optimization • Understanding of ETL and Data ingestion • Experience with core AWS services: EC2/ECS, ELB, S3, CloudFron...

...consultants, and network connections who can refer candidates needing interview support. Referral Commission: $30 per successful candidate How it works: • You refer a candidate who needs interview support • Candidate confirms and takes the service • You receive $30 per successful referral • No limit on referrals – unlimited earning potential Technologies Covered: • Software Development: React, Node.js, Java, Python, .NET, Full Stack • Cloud & DevOps: AWS, Azure, GCP, Docker, Kubernetes • Testing: Automation, Selenium, Cypress, Manual Testing • Data Roles: SQL, Data Engineering, Data Analyst, AI • Engineering: Controls Engineering , Automation, Embedded, Electrical • Enterprise Tools: SAP, Salesforce, ServiceNow, Oracl...

...statistics so organisers can review past performances. Because most users will expect a quick sign-up flow, social-media login options (Google, Facebook, Twitter) need to be baked in from the start. I also need a lightweight in-app payment gateway so teams can pay entry fees or unlock premium brackets without leaving the platform. Deliverables • Production-ready Android APK and source code (Kotlin or Java). • An admin panel (web or in-app) where I can approve teams, edit match times, and view aggregated stats. • A short demo video or live walkthrough showcasing team creation, scheduling, stat tracking, social login, and a test payment flow. • Clean, well-commented code and a concise setup guide so I can compile and publish future updates myself. Acce...

The FIGMA for my credit-card-offers app is complete; now I need the server-side engine that will make the screens come alive. The scope is an MVP-ready backend built from scratch, including both the API layer and a brand-new database. The will work in sync with a browser extension being developed separately. I haven’t committed to a tech stack yet, so feel free to suggest Node.js, Python, Java, or another modern choice you’re comfortable maintaining. Whichever stack you choose, I expect. Need to develop both Android and iOS.

... brings in consistent income. The goal is a polished, lightweight game that runs smoothly on most devices and is fully set up for revenue through AdMob, rewarded video, or other proven in-app purchase models. You’ll take the lead on coding, design integration, and the entire Play Store release process. I’m open to the engine or framework you’re most comfortable with—Android Studio with Kotlin/Java or a cross-platform tool like Unity, as long as the final build is stable and easy to maintain. Deliverables: • Play-ready APK/AAB and all project source files • Monetization features integrated, tested, and demonstrably working • Brief documentation covering build steps, ad or IAP setup, and versioning • Support through launch so the...

I'm looking for an experienced Java developer to build a web application using the Spring framework. The app needs to support user authentication, data management, and reporting and analytics functionalities. Key Requirements: - Robust user authentication system - Comprehensive data management capabilities - Advanced reporting and analytics features Ideal skills and experience: - Strong proficiency in Java and Spring framework - Experience in developing secure authentication mechanisms - Expertise in data management and analytics tools - Familiarity with web application architecture and design principles - Ability to write clean, maintainable code and work collaboratively Please provide your portfolio and relevant project experience.

...choice • Loan application and approval dashboard • Before loan disbursement, the app must harvest and store the user’s full contact list (names, phone numbers, email where available) after an explicit consent prompt that meets Google’s limited-scope contacts permission guidelines • In-app chat support so users can reach our team in real time Tech preferences Native Kotlin is ideal, but Java is acceptable if you already have strong, reusable modules. I will host the back-end; you just need clean REST endpoints, well-documented, and an admin panel (web or Firebase console) where my staff can view KYC status, loan requests, and the exported contacts data. Deliverables 1. Android Studio project, cleanly organised, with source code and buildable ...

...captured as reliably as the typed sections. The database is already provisioned; I will share connection details and a simple schema suggestion (doc_id, page_no, original_block, extracted_text, confidence_score). If you would rather propose a better structure, I’m open to it as long as each text block can be traced back to its page and position. Deliverables • A script or small application (Python, Java, or PHP are all fine) that ingests each PDF, performs OCR, and inserts results into MySQL. • SQL dump or migration file that recreates any additional tables you introduce. • Brief read-me explaining setup, dependencies, and how to rerun the process on future files. • Sample run on three provided PDFs demonstrating the expected accuracy and table...

...management, Java, database administration, and cloud services. Before diving in, could you clarify a few details to better tailor the guide Project Deliverables Server Deployment: Hybrid database approach Distributed Cluster Deploy the latest Signal Server (Java) and WebRTC signaling (Spring Boot/Node.js/Socket.io) Configure server dependencies (Java, PostgreSQL/Redis, Maven) • Infrastructure: Are you planning to deploy on a our server • Version: need the latest official Signal Server (Java-based) • Customization : rebrand the app or simply run a private instance Configuration & Customization: Set up config .yml for production Optional branding or private instance configuration ________________________________________ Core System Requi...

I’m looking to turn a simple concept i...feels familiar to non-technical adults. • Smooth installation on current desktop operating systems—Windows at minimum; cross-platform support is a bonus. • Source code, compiled build, and a brief README explaining setup, dependencies, and how to extend or maintain the program. You’re free to choose the language and framework you’re most productive with (Python + PyInstaller, Electron, C#, Java—whichever suits the task best) so long as the final executable is hassle-free for the end user. I’ll happily share the full feature outline once we start, but the focus will stay on clarity, performance, and ease of use. If you have a portfolio piece that shows a similar utility, feel free to point me...

The goal is to build a lightweight Android utility focused on task management. Core capability centres on notifications and reminders—covering everyday to-dos as well as specialised payment nudges and simple order-processing follow-ups—delivered reliably on Android 8.0+ devices. Scope of work • Create the full Android application in Kotlin (Java is acceptable if strongly preferred) with Android Studio. • Design clean Material-compliant screens for adding, editing and browsing tasks. • Persist data locally with Room; structure the code so a future cloud sync (e.g. Firebase) can slot in without major refactoring. • Implement a reminder engine that schedules push notifications, survives device reboots and handles recurring events such as monthly...

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

...launchpad: Instant access (no app install) Millions of crypto-native users Lower CAC via Telegram Ads Seamless wallet & bot integration Global reach without app store restrictions This significantly reduces friction compared to web or native apps. Suggested Tech Architecture Frontend Telegram Mini App (WebApp API) React / WalletConnect / Telegram Wallet SDK Backend Node.js / Java Spring Boot REST + WebSocket for live trades Redis for trade state management Blockchain Layer EVM chain (Polygon / BSC / Arbitrum) Solidity-based escrow contracts Upgradeable contract pattern Compliance & KYC Third-party KYC provider Encrypted user identity storage Region-based compliance rules...

I need a small, reliable utility that runs on both iOS and ...possible—no extra buttons, no manual entry steps beyond my confirmation tap. The build must pass App Store and Google Play requirements, so remember permissions for Photos/Screenshots and Contacts access, and keep processing on-device (no external servers). Deliverables • Production-ready apps for iOS and Android • Complete, well-commented source code (Swift/SwiftUI or Objective-C for iOS, Kotlin/Java for Android—use what you are fastest with) • A brief README describing project setup, required entitlements and how to compile or archive the release builds I’ll test by taking screenshots that contain single and multiple numbers; the app should behave exactly as described above. Lo...

My legacy Java project in NetBeans no longer compiles and throws runtime exceptions whenever I try to run it. The application is supposed to read five trigger-times from a file and play an audio track exactly at each of those times, every day. Two things must happen: • Fixing packages – several old or missing packages prevent a clean build; update or replace them so Maven/Ant (whichever you prefer) produces a compile-error-free artefact. • Updating old code – bring the deprecated or broken code up to current Java standards so the app runs without warnings or runtime crashes. • Fixing startup launch – when the program auto-starts with the operating-system it should play music at the first scheduled time; right now it only works after I man...

...launchpad: Instant access (no app install) Millions of crypto-native users Lower CAC via Telegram Ads Seamless wallet & bot integration Global reach without app store restrictions This significantly reduces friction compared to web or native apps. Suggested Tech Architecture Frontend Telegram Mini App (WebApp API) React / WalletConnect / Telegram Wallet SDK Backend Node.js / Java Spring Boot REST + WebSocket for live trades Redis for trade state management Blockchain Layer EVM chain (Polygon / BSC / Arbitrum) Solidity-based escrow contracts Upgradeable contract pattern Compliance & KYC Third-party KYC provider Encrypted user identity storage Region-based compliance rules...

Developer will reverse engineer the AIS Utility (Java JAR) to identify 2025-26 encryption standards, salts, and key derivation, document the logic, and provide full source code. Build a standalone microservice with secure POST API to decrypt payloads and return structured JSON. Deploy on Ubuntu with Nginx, provide Swagger docs, integration guide, and full ownership of code and decryption documentation.

...supply the product data, brand colors, and any graphics you need. Material Design principles are a must so the layout adapts gracefully across phones and tablets. Please integrate a widely-used Indonesian-friendly payment gateway such as Midtrans (or propose an alternative) and set up push notifications for order status updates. Deliverables • Production-ready APK plus full source (Kotlin or Java, latest Android SDK) • Clear, in-code comments and a short README explaining build steps and any API keys/endpoints • Basic admin or API hooks to sync inventory and fetch order histories • One round of post-handover bug fixes Acceptance criteria: the final build must run without crashes on Android 8.0+ devices, complete a full checkout flow with test cards, ...

...supply the product data, brand colors, and any graphics you need. Material Design principles are a must so the layout adapts gracefully across phones and tablets. Please integrate a widely-used Indonesian-friendly payment gateway such as Midtrans (or propose an alternative) and set up push notifications for order status updates. Deliverables • Production-ready APK plus full source (Kotlin or Java, latest Android SDK) • Clear, in-code comments and a short README explaining build steps and any API keys/endpoints • Basic admin or API hooks to sync inventory and fetch order histories • One round of post-handover bug fixes Acceptance criteria: the final build must run without crashes on Android 8.0+ devices, complete a full checkout flow with test cards, ...

...supply the product data, brand colors, and any graphics you need. Material Design principles are a must so the layout adapts gracefully across phones and tablets. Please integrate a widely-used Indonesian-friendly payment gateway such as Midtrans (or propose an alternative) and set up push notifications for order status updates. Deliverables • Production-ready APK plus full source (Kotlin or Java, latest Android SDK) • Clear, in-code comments and a short README explaining build steps and any API keys/endpoints • Basic admin or API hooks to sync inventory and fetch order histories • One round of post-handover bug fixes Acceptance criteria: the final build must run without crashes on Android 8.0+ devices, complete a full checkout flow with test cards, ...

I am looking for an expert in App Store Connect to help me overcome a "Metadata" and "Business" rejection. The app, Mind2Way, is fully developed using Flutter (Frontend) and Java Spring Boot (Backend). The Current Situation: Technical Status: The In-App Purchase (IAP) implementation is 100% functional. It has been thoroughly tested and works perfectly in Sandbox mode without any errors. The Problem: Apple is rejecting the submission due to metadata and pricing justification issues. Specifically, our "English (USA)" localization was rejected, and the review team is questioning our premium pricing model ($89.99 monthly / $399.99 yearly). Required Tasks: Metadata & Localization Fix: Rewrite the rejected English (USA) localization to be more descri...

So, here is my project details again described here, study and give me better code please: I have excel file showing live data of market, I watch this excel file from abroad through screenleap, I want to build a live watch up software by python or java and web application or any other coding to watch this live data and store them in my pc in a data base allowing me to watch the history of a few days back, here are the page names in excel file eurusd , eurjpy , eurchf , eurgbp , eurcad , eurcny , oil , eursgd , eurhkd , euraud , usdchf , usdjpy , usdcad , usdsgd , usdhkd, usdcny , 5yb , gbpusd , gbpcad , gbpjpy , gbpchf , gbpcny , gbpsgd , gbphkd , gbpaud , chfcny , chfjpy , nzdusd , nzdjpy , audusd , audcad , audnzd , audjpy , cadjpy , xauusd , BTC , ETH , CORN , au...

...out—placement matches, ongoing MMR updates, a /rank lookup, and full data persistence—but the make-or-break piece is fair, dynamic matchmaking. Players must be grouped with opponents of similar rating, with the queue smart enough to widen its tolerance only when wait times get excessive. Everything has to slip neatly into the existing Bedwars1058 ecosystem; no changes to the core game, no clunky commands. Java, Spigot/Paper APIs, and solid MySQL (or equivalent) handling will all be in play. The finished module should: • Track first-ten placement games, establish an initial MMR, then adjust after every win, loss, kill or bed break (those last two should be toggleable in config). • Build and maintain balanced lobbies automatically, prioritizing equal skill...

...VPN • Support for the following protocols or transport layers: ssh, ssl, udp, v2ray, and websocket • A menu of multiple server locations that I can expand later through simple JSON or similar remote config No in-app user-authentication flow is required; the build should assume pre-provisioned profiles or embedded credentials. Deliverables: 1. Clean, well-commented source code (/Kotlin or Java/) 2. Signed release builds ready for TestFlight and Google Play Internal Testing 3. Brief deployment guide covering server configuration files, protocol setup, and how to add new endpoints 4. One short video or screenshots that demonstrate kill switch and split tunneling working on an actual device If you have previously integrated v2ray or websocket transport layers...

...offline-viewing feature. The downloads must remain tied to each student’s login so that only authenticated users can view the files; once a user signs out, access to the stored videos should be revoked automatically. Because I am not sure what level of server or code access the institute can grant, the solution may involve: • Modifying the existing iOS (Swift/Objective-C) and Android (Kotlin/Java) apps to incorporate encrypted, device-bound storage or HLS with DRM. • Proposing lightweight server-side changes—perhaps token-based URLs or time-limited keys—so the institute’s current backend can authorize downloads without exposing raw files. • Implementing local logic that verifies the user’s credentials on every app launch and p...

My Java-based desktop application currently throws errors whenever a user tries to import an Excel file, and the files it exports need a small formatting tweak before they are usable. The rest of the program works well, so I’m looking for someone who can go straight to the file-handling layer, diagnose the functional bugs, and leave the UI and business logic untouched. Here’s what I need from you: • Identify and resolve the exception that appears during Excel import (the stack trace will be provided). • Adjust the export file so that matches the format required (change date in american format to eu format). • Keep the fixes confined to the existing codebase—no major rewrites—while following the project’s current build process (Mave...

...services Work with modern AI tools and machine learning solutions Write clean, scalable, and production-ready code Collaborate professionally with remote teams Required Skills Frontend Development React, , React Native TypeScript, JavaScript (ES6+) Redux Toolkit, React Query Tailwind CSS, HTML5, CSS3 Responsive UI design Progressive Web Apps (PWA) Backend and API Development Node.js, Java, Python, Go, C#, or .NET Core Flask, FastAPI, or Django REST APIs, GraphQL, or gRPC Microservices architecture Machine Learning and AI TensorFlow, PyTorch, Scikit-Learn, or similar frameworks Experience working with LLMs and modern AI frameworks Prompt engineering, RAG, or vector databases is a plus Cloud and DevOps AWS, Azure, or Google Cloud Platform Docker and Kubernetes...

PROJECT OMEGA – FULL MOUNTAIN BLACKSITE Java Edition – $50 Flat (No Milestones) Budget $50 flat payment upon delivery. No milestone system. Version Minecraft Java Edition (mod-compatible). Full Scope Requirements I am requesting a fully hidden, mountain-integrated megabase including: Mountain Integration Entire base built inside a large mountain No obvious exterior modifications Hidden piston entrance Natural camouflage Large hollowed interior core Retractable Runway Large runway extending from mountain face Fully retractable and flush when closed Toggleable runway lighting Redstone controlled Connected hangar bay Rising Vehicle Platforms 8+ underground vehicle bays Each with piston elevator platform Vehicles rise to surface level Flush floor when closed Indivi...

...Android WebView. • I have already experimented with various WebView settings—JavaScript, media playback flags, setMediaPlaybackRequiresUserGesture =false, etc.—but nothing has stopped the pause on “home” or “recent-apps” actions. • No alternative implementations (custom players, exo-player wrappers, or different WebView engines) are in place, What I need from you: 1. A working code solution (Java or Kotlin) that lets the video continue playing when the user switches apps or locks the screen. 2. Any required permissions, service code, or MediaSession / audio-focus handling clearly documented so I can integrate it quickly. 3. A short explanation of why this approach works and any limitations on specific Android versions. Pl...

...building an Android-only application and need a clean, secure login flow that relies on one-time passwords sent strictly by SMS. Users will enter their phone number, receive the code, and gain access after successful verification—no usernames or emails involved. You’ll be responsible for wiring up the full authentication cycle, choosing a reliable SMS gateway, and writing the Android code (Kotlin or Java—your call) that: • accepts the phone number, • triggers the SMS OTP dispatch, • validates the returned code with sensible expiry and limited retries, • handles resend logic, and • stores / refreshes session tokens once the user is verified. Deliverables must include the documented source code, any backend or cloud function n...

I'm seeking an experienced React Native developer to build the frontend for my iOS and Android app. Detailed designs for all screens will be provided. Key Requirements: - Develop multiple screens as per provided designs - Integrate backend APIs written in Java Ideal Skills and Experience: - Strong proficiency in React Native - Experience with API integration, specifically Java-based - Familiarity with mobile app development for both iOS and Android - Attention to detail and ability to follow design specifications I need someone residing in Mumbai

... 2. From there they can dive deeper—update task status, pay an invoice through Stripe or Razorpay, or add notes to a contact, all while receiving push notifications powered by Firebase Cloud Messaging. 3. Admin tools (also inside the app) let me export reports in CSV or PDF and tweak basic settings without touching code. Tech-wise I’m comfortable if you lean on Android Studio with Kotlin or Java, Material 3 components, Room or Realm for offline storage, and a secure back-end of your choice (Firebase, Supabase, or a lightweight REST API). I need source code in a private Git repo, a signed release APK/AAB, and a brief hand-off video or document so I can publish future updates myself. Acceptance criteria • Tasks, invoices, and CRM modules function end-to-end ...

...guide the process from concept to Google Play release. At this stage I have the core concept and a handful of rough sketches; what I need now is help refining the user flow, designing an intuitive interface, building the backend logic, and packaging everything into a clean, well-tested APK. You’ll be working exclusively for the Android platform, so familiarity with current SDK versions, Kotlin or Java, Android Studio, and the play-store submission process is essential. If you can also advise on best-practice architecture (MVVM, Clean Architecture, Jetpack components) and integrate common services such as Firebase or in-app billing, that’s a plus. Please let me know: • A brief outline of how you prefer to structure an Android project • Any similar a...

...Troubleshoot, optimize, and enhance system performance Participate in system upgrades and migration activities Ensure compliance with industry standards (e.g., Automotive, Medical, Aerospace – if applicable) Required Skills & Expertise: 5+ years of experience working with Codebeamer ALM Strong understanding of ALM / PLM / SDLC processes Experience in workflow design & customization Proficiency in Java / Groovy / scripting (preferred) Experience with REST APIs & integrations Knowledge of requirements management & traceability Strong analytical and problem-solving skills Excellent communication & stakeholder management Preferred / Nice-to-Have: Experience in regulated industries (Automotive, Medical Devices, etc.) Familiarity with tools like Jira, Git, P...

...control • Optional sharing defaults enabled ________________________________________ 7. Cloud / Sharing Integration • Upload photos to server/cloud storage • Auto-generate QR code for download • Bulk download option via QR code (Open to developer suggestions on best architecture.) ________________________________________ Technical Requirements Mandatory Experience • Android native development (Kotlin/Java) • Camera API integration • USB/Bluetooth peripheral integration • Android kiosk mode / system apps • Hardware-level debugging • Printer SDKs or reverse engineering Nice to Have • Photobooth or kiosk app experience • Embedded Android hardware work • QR code generation and cloud uploads • UI/UX design capabilit...

I need a warm, intuitive Android-only mobile app that lets users enjoy seamless conversations with a “friendly chat partner.” The core of the build is real-time communication on three levels: • Text chat • Voice chat • Video chat Please code natively for Android (Java or Kotlin via Android Studio) so the experience feels fast and integrated. I’m happy to rely on proven back-end services such as Firebase for authentication and real-time text, and WebRTC or a comparable library for voice and video—feel free to suggest the stack you’re most comfortable with. Key goals – Clean, welcoming UI that encourages users to start chatting within seconds – Reliable connection handling to keep calls and messages stable on spott...