Java jobs

I’m ready to turn a fresh idea into a fully-functional Android app and I need an experienced mobile software developer to work with me from concept to launch. This project is strictly for Android, so deep familiarity with Android Studio, Kotlin or Java, common libraries, and Google Play deployment is essential. Here’s what I have so far: a clear problem the app will solve, basic wireframe sketches, and a short feature wish-list. What I’m missing—and what I’m hiring you for—is the technical build, iterative testing, and guidance on best practices so the final APK meets current Play Store requirements and runs smoothly on modern Android devices. Deliverables I expect: • Clean, well-commented source code hosted in a shared repo • A sign...

...into a fully-featured Android application. The project is strictly app development—no web or iOS work for now—so I need someone who can take the idea from blank screen to a polished release on Google Play. Here’s what the engagement will look like: • Collaborate with me to refine the feature set, then translate it into a clean, modern Android interface. • Build the app natively in Kotlin or Java inside Android Studio, following Material Design best practices for performance and accessibility. • Connect any required back-end services (Firebase, REST API, or a solution you recommend) and implement secure local data storage. • Run thorough functional and usability tests, fix bugs, and prepare a signed release build. Deliverables &bull...

...user opens the app, it should load the public website exactly as it appears in a mobile browser—no extra screens, log-in, or separate navigation. Behind the scenes, my private web application (the admin area) must still be reachable through its current URL, yet remain invisible to normal users just as it is on the site today. I am only targeting Android, so please build with native Android Studio (Java or Kotlin) or a reliable cross-platform tool that compiles to a clean Android package. A lightweight WebView container with proper handling for links that open outside the domain, file uploads, basic permissions, and back-button navigation will cover everything I need. Deliverables • Signed release APK and debuggable APK • Complete Android Studio project/sourc...

I already have the core of an ERP SaaS platform in place, built with Java 17, Spring Boot, Spring Data JPA, RESTful APIs, and a MySQL backend. What I need now is a fully-featured Customer Relationship Management module that my employees can use day-to-day inside the same application. The scope of this engagement is limited to CRM functions only, but they must plug seamlessly into the existing codebase and follow its clean-architecture approach: • Lead Management – endpoints, UI pages, and persistence layers that let staff capture, qualify, score, and assign leads. • Sales Tracking – pipeline views, deal stages, and automated status updates tied to existing authentication and role policies. • Customer Support – ticket creation, SLA timers, comme...

I’m building an Android app for general eye-tracking and need a standalone capture module that records o...even during rapid saccades, so please optimise the processing pipeline with OpenCV, GPU acceleration, or other techniques you prefer. The finished module must: • take a live camera feed, • crop it in real time to the eye-strip, • save the result as .mp4, and • drop into my existing project with minimal wiring. Please include the full Android Studio project, clearly commented Kotlin or Java source, and a brief README explaining any build flags, permissions, or MediaPipe versions used. I’ll review performance on a Pixel device first, then on a tablet with an external UVC camera; meeting the frame-rate target under both scenarios will ...

...workflows in production environments. enterprise integration experience — building integrations with Oracle (EBS, Oracle Cloud, Fusion SCM) and/or ServiceNow via REST/SOAP APIs, webhooks, or middleware platforms. Proficiency with AI/LLM orchestration frameworks such as LangChain, LangGraph, Semantic Kernel, AutoGen, Haystack, or equivalent. Strong programming skills in Python (primary) and/or Java/Node.js for building integration and orchestration components. API design and consumption (REST, GraphQL, OpenAPI/Swagger) and message queuing systems (Kafka, RabbitMQ, Azure Service Bus, or similar). Technical Skills Cloud platforms: AWS, Azure, or GCP — platform agnostic, comfortable deploying on any major provider. Containerization and orchestration: Docker,...

I’m building a bite-sized learning section inside our portal and want it stocked with engaging, India-made “reel” videos that make programmers stop scrolling and start coding. Every clip should focus on Programming Languages, specifically Python, Java, or JavaScript, and can take one of three angles: a concise tutorial that teaches a single concept, a rapid-fire set of tips & tricks, or a quick project walkthrough that shows the real-world use of the topic. Here’s the flow I have in mind • Format: vertical (9:16) or square, 60-90 seconds each, HD, .mp4 • Delivery style: screen capture with clear voice-over in neutral English; on-camera intro/outro optional but welcome • Tools: feel free to record with OBS, Camtasia, ScreenFlow, or an...

I successfully built and configured a test Java Servlet project using Eclipse, Apache Tomcat, and the classic Java EE servlet architecture in order to understand how servlet-based web applications are structured, compiled, deployed, and executed within a traditional Java web development environment.

...recovered. Social sign-in (Google, Facebook, email/password) would be an added bonus if you’re comfortable wiring it up with Firebase Authentication, AWS Cognito, or another reliable backend. The design assets and basic screen sequence are finished; what’s missing is production-quality code that follows current Android guidelines, runs smoothly from Android 8 upward, and is easy to maintain. Kotlin or Java are both acceptable—just keep the project cleanly structured (MVVM preferred) and well documented. Deliverables • Complete Android Studio project with all source code • Integrated authentication (signup, login, password reset) connected to the chosen backend • Simple post-login home screen confirming the active user session • READ...

From Pakistan or India at low budget. I need one junior-level Android developer for some easy tasks.

Hi, I looking for job support for automation testing, required support immediate support initially one month i need end to end support. who have strong knowledge in Automation testing and who are willing to handle our projects pls let us know. Required kills: java, selenium,API automation,kafka, SQL Framework: Cucumber, karate,rest assured, testNG Domain: telecom API Automation skills(mandatory)

...experience in mobile app testing across Android and iOS platforms. Adept at identifying defects, improving test coverage, and enhancing product quality using Java, Selenium WebDriver, and TestNG. Passionate about building efficient testing frameworks and ensuring seamless user experience Manual Testing, Functional Testing, Regression Testing, Smoke & Sanity Testing, System Testing, Integration Testing, Test Case Design, Test Planning, Defect Reporting & Tracking, Requirement Analysis, UAT Support, Mobile Application Testing (Android & iOS), Functional Testing (Mobile Apps), App Installation, Upgrade & Uninstallation Testing Java, OOP Concepts, Selenium WebDriver, Basic Automation Framework Understanding, Test Script Development, Katalon Studio Agile/...

...The goal is to deliver a smooth, modern experience that lets users connect, chat, and build relationships on the go. Core requirement • Messaging — one-to-one, group, and push-notification support Beyond this key feature, the basic social framework—user authentication, profile creation, and a clean feed—should be in place so the messaging element feels naturally integrated. Kotlin (or modern Java) in Android Studio is preferred, and I am comfortable with Firebase or an equally robust cloud backend for real-time data, user management, and media storage. Deliverable An installable APK plus complete, well-documented source code hosted in a private Git repository, ready for me to compile locally. Include a brief README outlining build steps, environment ...

I’m ready to move forward with a fresh Android application focused on smooth, reliable social-media integration. The core idea is to let users connect their existing social accounts, pull in profile details, and share in-app content directly to the major platforms without friction. Here’s what I need from you: • A clean, modern Android code-base (Kotlin preferred, but Java is fine) that follows current Google Play and Material Design guidelines. • Secure social sign-in and token handling for at least Facebook, Instagram, and X/Twitter, expandable to others later. • An intuitive UI/UX that shows off the social feed or sharing options clearly. • Clear, well-commented code plus a short setup README so I can compile and test builds locally. ...

From Pakistan or India I need a New Freelancer and expert in JAVA Android Apps I need work for long term but at low budget I neea serious and hard working willing to work at very low budget

...defined problem Include both code changes and corresponding test updates Be reasonably scoped (neither too large nor trivial) Highly Preferred: PRs demonstrating Fail → Pass (F2P) behavior (i.e., tests fail before the fix and pass after implementation) :warning: Note: Repositories where PRs contain only code changes without test coverage will not be considered. 3. Preferred Technology Stack C# Java Python PHP .NET Framework COBOL Other legacy enterprise technologies 4. Preferred Industry Domains (High Priority) Banking / Financial Services Accounting Insurance Healthcare Legal Technology Government Systems Enterprise SaaS (complex workflow-driven platforms) Note: Ecommerce, retail, content platforms, and frontend-heavy applications are not within scope. 5. Tec...

... CRM flags, user choices, etc.). • A customer-support dashboard where agents can jump into live conversations, review history, tag or close tickets, and keep template messages handy. Project outline You will build (or configure) the middleware to handle authentication, webhook events and template management, then layer on the workflow logic. Language or framework is up to you—Node, Python, Java or serverless functions—so long as it uses the official WhatsApp Business Cloud API and can live on AWS. Deliverables 1. End-to-end API integration, including webhook setup and message-template handling. 2. Workflow engine that meets the complex conditional scenarios we map together. 3. Web dashboard (React, Vue or similar) streaming live chats and allowing age...

... • Reformat to each language’s canonical style. • Language support required: Python and Java (JavaScript may follow later, so keep the architecture open for pluggable language engines). 2. ErrorAnalyzer • Ingest console or build logs, identify stack traces, and correlate them with source files. • Primary priority: produce a concise PDF report that flags root causes and ranks them by severity. • Where possible, append AI-generated fix suggestions in an appendix, but the PDF itself is the must-deliver artefact. 3. AutoTestGen • From inspected code, scaffold unit tests aiming for roughly 80 % branch coverage. • Output frameworks: pytest for Python and JUnit for Java. Core expectations • Written...

...theme; what I need now is a developer who can move every piece of existing content into WordPress while keeping the site live, the URLs intact, and the search traffic unaffected. The job breaks down into three core pieces: • Export the full article archive—including body text, images, authorship data, dates and categories—from the Contentteller MySQL database. Whether you script the export in Java, generate XML, or follow another reliable route is completely up to you; my only requirement is that the process is seamless and nothing is lost. • Import that data into WordPress so it maps cleanly to the new theme’s post types, taxonomies and media library. I’m not certain how much visual tweaking the theme will need until we see real content in pl...

...refreshes automatically. • Seamless, secure online payment that supports major Indian cards, UPI and popular wallets, with receipts issued instantly inside the app. The flow should stay light: customers choose items from our partnered stores, pay, then follow the delivery in real time until it arrives. I will supply all product-data endpoints and the store list; you wire them into a clean Kotlin/Java codebase (no cross-platform frameworks, please) and connect to Firebase or a comparable backend for auth, notifications and live-tracking. Deliverables 1. Production-ready Android Studio project with well-commented source. 2. Signed APK plus Play Store-ready bundle. 3. Brief setup guide covering build, deployment and how to switch to my API keys. 4. Two-week post-lau...

...workflows Supplier and customer management GST/tax invoicing Credit and payment tracking Multi-branch operations Reporting and dashboards Retail Pharmacy POS Pharmacy billing/POS Barcode integration Fast billing workflows Stock visibility and inventory lookup User roles and access control Prescription-based sales workflows (preferred) Preferred Technology Stack Preferred backend technologies: Java / Spring Boot Node.js Preferred frontend technologies: Angular React Preferred databases: PostgreSQL MySQL Other stable and maintainable technology stacks may also be considered. Qualification Criteria Only bidders meeting the following criteria are requested to apply: Existing working product/platform available Production deployments with active business usage Ability to prov...

I'm looking for an experienced Minecraft developer to create both a custom plugin and a mod for my server. Key Features Needed: - Custom Commands - New Items/Blocks - Minigames Ideal Skills: - Proficiency in Java and Minecraft's API - Experience with Bukkit/Spigot and Forge - Strong understanding of game mechanics and balance Please provide examples of previous work and your approach to this project.

...location • Signature (on-screen) Essential features • Instant PDF export of the completed receipt (with our logo and the signature embedded) • Seamless QuickBooks Online sync—no manual re-entry • Offline mode with queued sync when the device reconnects • Simple, touch-friendly interface tailored for Android phones in the field Deliverables 1. Full Android Studio project (Kotlin or Java) with clear build instructions 2. Signed APK for testing plus Play-ready bundle for production 3. QuickBooks API keys handled through secure env variables 4. One-page setup guide for updating credentials and branding 5. Source-code level documentation of all classes that touch the QuickBooks SDK Acceptance criteria • A receipt creat...

From Pakistan or India at low budget. I need one junior-level Android developer for some easy tasks.

...single-page PDF ready for distribution. My design file shows exact font sizes, margins, headers, and footers, so the app must respect those specifications pixel-for-pixel. Dynamic text should auto-shrink only when a block overruns its allotted space; everything else should remain fixed. No images or tables need processing—pure text only. I’m open to your preferred stack (Python with PyPDF2/PDFPlumber, Java with PDFBox, or any robust alternative) as long as the final solution: • Web based app, runs on Windows 10+, or ipad's without extra paid dependencies • Processes at least 200 pages in under two minutes on a standard laptop • Lets me update the template later without touching the core code (e.g., via an external JSON or simple GUI field ma...

Looking for an experienced Android developer to upgrade and modernize an existing VP...Main goal is to make the app fully compatible with latest Android versions and support 16 KB memory page size devices. Tasks Fix and upgrade old Android project Update Gradle & dependencies Fix build errors and deprecated APIs Rebuild/fix native VPN libraries (.so) Ensure 16KB page size compatibility Verify VPN connection works properly Generate working APK & AAB Skills Required Android Studio Java/Kotlin ICS OpenVPN / OpenVPN Android Android NDK Gradle migration VPNService API Native library handling Important Project source code already exists. Need someone experienced with VPN apps and legacy Android project upgrades. Please share: Similar VPN projects Android NDK experience Estimat...

...defined problem Include both code changes and corresponding test updates Be reasonably scoped (neither too large nor trivial) Highly Preferred: PRs demonstrating Fail → Pass (F2P) behavior (i.e., tests fail before the fix and pass after implementation) :warning: Note: Repositories where PRs contain only code changes without test coverage will not be considered. 3. Preferred Technology Stack C# Java Python PHP .NET Framework COBOL Other legacy enterprise technologies 4. Preferred Industry Domains (High Priority) Banking / Financial Services Accounting Insurance Healthcare Legal Technology Government Systems Enterprise SaaS (complex workflow-driven platforms) Note: Ecommerce, retail, content platforms, and frontend-heavy applications are not within scope. 5. Tec...

...Clover reporting can properly track: -Quantity sold per item -Gross revenue -Tip totals -Sales across both Clover devices under the same merchant account Please do NOT simply send a generic lump-sum payment amount unless Clover item-level reporting will still function correctly. Technical Details: Must use Clover Android SDK / Clover Payments API Android Studio project required Kotlin preferred (Java acceptable if simpler) Signed APK required Private APK deployment only App must support installation on two Clover devices tied to the same merchant account NOT Needed: No inventory tracking No cloud sync No backend server No employee logins No advanced reporting dashboard No customer accounts No online ordering No barcode scanning No App Market publishing Important: Please keep ...

Full-Stack Java back and Front Development

We need some java android developer for some long term work.

I'm looking for a datapack for Java Minecraft 1.21.11 Paper. This datapack should allow players to receive a weak mace via command and upgrade it through kills. Requirements: - Command: /getweakmace to receive weak mace (please provide it so I can give @a not just @s) - Upgrade mace enchantments based on player kills, displayed via chat messages - Max enchantments: Wind Burst 1, Breach 2, Unbreaking 3, mending 1 - Fire Aspect banned on maces - One "God Mace" that is craftable using the dragon egg 2 silence trims 2 elytra 2 nether stars and 2 netherite blocks Ideal Skills and Experience: - Proficiency in Minecraft datapack creation - Experience with Minecraft commands and enchantments - Familiarity with Java Minecraft 1.21.11 Paper Please provide a sample of...

...Required Technical Skills: Strong experience with Android Device Policy Manager (DevicePolicyManager) APIs Hands-on experience building Device Owner / DPC (Device Policy Controller) applications QR code-based provisioning during initial device setup DeviceAdminReceiver implementation Lock task mode and custom lock screen development Firebase Cloud Messaging (FCM) integration Kotlin (preferred) or Java REST API integration with backend services Android Enterprise / Android for Work experience is a strong plus What You Will Build: Customer locker Android app with Device Owner provisioning QR code provisioning flow for factory-fresh devices Lock and unlock functionality controlled via FCM messages from our backend Custom lock screen showing EMI payment information Anti-tamper det...

...update through the Play Console. • Swap in updated screenshots that better showcase new builds or seasonal themes. • Edit or rewrite the store listing text for promotions, keyword tweaks, or policy compliance. • Roll out light feature updates inside the APK when needed—think minor UI improvements or hooking in a small new function. You should already be comfortable with Android Studio, Kotlin/Java, and the Google Play release process (including asset requirements and rollout tracks). Speed matters; I’m looking for someone I can ping and, ideally within a day or two, see the update live or at least in review. When you reply, let me know: 1. How you normally handle quick asset swaps without risking version code mishaps. 2. Your turnaround time...

I'm looking for an experienced Java game developer to create a multiplayer online game similar to Old School RuneScape (OSRS) with both PvP and PvE elements. Key Features: - Quests and missions - Skill development and leveling (including skills like attack, strength, defense, hit points, ranging, prayer, void arts (mage), mining, smithing, etc.) - Zone development - Point-and-click movement system with two-button gameplay inspired by OSRS mechanics - Basic animations and simple design approach Ideal Skills and Experience: - Proficiency in Java and game development - Experience with MMO and RPG mechanics - Strong background in creating engaging quests and skill systems - Ability to design expansive, interactive game zones Looking for someone who can bring creativity a...

...were present—credit establishment, vend authorization, end-of-sale, and error reporting must all follow the MDB 4.2 spec. Key points that will be checked during acceptance • Reliable real-time exchange of MDB packets at the required 9600 bps, 9-bit, even-parity format • Robust parsing of product prices, credit totals, and vend confirmations from the Sanden controller • Clean, well-documented Java/Kotlin (or C++ with the NDK if you can justify it) so future updates remain simple • Configuration screen on Android for device address, timeouts, and logging level • Optional JSON log export so sales data can be pushed to our backend later The objective is to add credit to the VMC so the buyer can make a selection and then our android app does t...

I’m enhancing my existing Android app with an AI-powered feature that can generate smart, real-time routes for users. The core requirement is a self-contained module (Java or Kotlin) that takes a set of waypoints plus live constraints—traffic, distance, user preferences—and returns the most efficient path within milliseconds. You’ll design the model or algorithm, handle the data ingestion (maps SDK, traffic feeds, user inputs), and expose clean, well-documented functions that my front-end can call. Accuracy, speed, and low battery impact are all priorities, so please factor in on-device optimisation techniques or lightweight cloud calls where truly necessary. I’ll consider the task complete when I can drop your module into my Android project, feed it ...

I urgently need Java development support to convert a manual office process into a lightweight web application. The work is strictly Java-based and must run as a web application; you are free to choose the stack—Spring Boot, Jakarta EE, or even plain servlets—as long as it can be deployed on a standard Linux server with Tomcat (or similar). I’d like to collaborate immediately, outline the workflow together, and move straight into coding, testing, and deployment. A functional first cut is needed within days, with final polish delivered as soon as possible. Deliverables • Complete Java source code • Deployable WAR/JAR file • README covering build and deployment steps • Short user guide for my team Please share relevant...

I want to learn, hands-on, how to add a Google Play in-app subscription to an Android Studio project. I’m comfortable with Java and Kotlin but I’ve never used the Play Billing Library, so I need you to walk me through the complete flow: configuring products in the Play Console, wiring the BillingClient in code, handling purchases, acknowledging them, and making sure the UI reacts properly when a user upgrades, downgrades, or cancels. We can work in a fresh demo project or inside my existing one—whatever you feel showcases best practices. I’ll share my screen during a live session and record it for later reference. By the end I expect to have a clean, commented code sample I can reuse, plus clarity on testing with sandbox accounts and pushing the build to int...

...defined problem Include both code changes and corresponding test updates Be reasonably scoped (neither too large nor trivial) Highly Preferred: PRs demonstrating Fail → Pass (F2P) behavior (i.e., tests fail before the fix and pass after implementation) :warning: Note: Repositories where PRs contain only code changes without test coverage will not be considered. 3. Preferred Technology Stack C# Java Python PHP .NET Framework COBOL Other legacy enterprise technologies 4. Preferred Industry Domains (High Priority) Banking / Financial Services Accounting Insurance Healthcare Legal Technology Government Systems Enterprise SaaS (complex workflow-driven platforms) Note: Ecommerce, retail, content platforms, and frontend-heavy applications are not within scope. 5. Tec...

I need help setting up an ominous trial spawner loot table and configuring an ominous vault for Minecraft Java Edition using data packs. Requirements: - Configure loot table to drop End City treasure, including: - Elytra (not directly, but via an Ecliptic key) - Diamond gear - Enchanted books - Shulker shells - Tools and weapons with enchantments - Create a custom "Ecliptic Trial Key" to drop from the spawner. - Set vault config to require Ecliptic Key for access using NBT matching and custom loot. Ideal Skills: - Experience with Minecraft data packs - Proficient in NBT editing and loot table configuration - Familiarity with Minecraft Java Edition mechanics - Knowledge of End City and vault customization My discord is asher_is_cool23 or text/call me ...

...Backend Developer to design and build scalable backend systems and API integrations for a FinTech platform. Responsibilities: Develop backend services using Java (Spring Boot) Build and maintain REST & SOAP APIs Integrate with third-party systems (mobile operators, e-wallets, EMIs, payment providers) Work with Oracle databases (design, optimization, migrations) Ensure security, scalability, and performance of backend systems Support and improve existing mobile money / FinTech platforms Handle deployment, testing (UAT), and production releases Maintain API documentation and technical records Requirements: Strong experience in Java + Spring Boot backend development Experience in API development and system integration Solid knowledge of Oracle or relational databases ...

I need an Android application that pulls a small packet of ​text data—essentially a list of BLE MAC addresses—from my web server whenever the user taps “Refresh.” Once the list is loaded, the a...portion. Key points you will work on • Manual server call also server or sql data. • Parse the returned MAC list and connect only to those devices, not to every advertiser in range. • Maintain a continuous, low-latency RX/TX channel with the ESP32. • Integrate the printer SDK so the user can tap “Print” and receive an immediate printout. Deliverables 1. Full Android Studio project (Java or Kotlin) with clear, modular code. 2. Signed APK for quick field testing. The job is straightforward, so I expect a compact soluti...

I’m creating an education-focused Android app called “Hanakutupu” and need a developer who can take it from idea to a ready-to-publish build. What I’m after • A modern Android application (Kotlin or Java) built to current SDK standards • Core screens: lesson/library browsing, in-app viewing or playback, user progress tracking, and a simple dashboard • Basic sign-up/login (email or Google) so learners can save progress • Local or cloud-synced database for storing lessons and user data • Clean Material Design UI with smooth performance on recent Android versions Deliverables • Production-ready APK and full, well-commented source code • Any design assets or libraries used, clearly licensed • Brief set...

I’m ready to turn a fresh idea into a fully-fledged Android application and need a developer who can guide the project from concept to Google Play release. This is a ground-up build, so expect to help refine requirements, design intuitive screens, write clean Kotlin or Java code, connect any necessary APIs, manage local data, and handle store-listing compliance and testing. To move forward, please send a detailed project proposal that outlines your approach, milestone breakdown, estimated timeline, and any assumptions you’d need me to confirm. The clearer your plan, the faster we can get started on bringing this Android-only app to users.

...results * Notifications for updates **2. Admin Panel:** * Full control over numbers and results * User management system * Manual/auto result update option * Notification control * Basic analytics dashboard **3. App Features:** * Fast and responsive UI * Lightweight and smooth performance * Secure backend system * API integration support **4. Technical Requirements:** * Android App (Kotlin / Java preferred) * Backend (PHP / Node.js / Firebase) * Database (MySQL / Firebase) **Additional Requirements:** * Similar past experience preferred * Clean and professional UI design * Easy-to-manage admin panel **Note:** This is a number-based application. Developer should have experience in similar dashboard-based or real-time update apps. Please share your previous work or demo a...

From Pakistan or India at low budget. I need one junior-level Android developer for some easy tasks.

I need a pair of polished entry screens for my Android app: a login page and a sign-up page that immediately feel premium. The look I’m after is modern and sleek—clean typography, subtle motion where it adds value, and a clear visual hierarchy that guides the user effortlessly from first tap to successful authentication. Core requirements • Platform: Android only (Kotlin or Java—whichever you’re strongest in). • Authentication options to surface on both screens: – Email & Password fields with proper validation – One-tap Social Media Login buttons (Google and Facebook at minimum; more if you have ready-made components) – Biometric prompt (Fingerprint / Face ID) once the device supports it, falling back gracefull...

...right architecture to the final Play Store submission. I already have relevant domain knowledge and clear, concise feature notes, so you won’t be starting from a blank page. Expect rapid feedback cycles and prompt answers to technical questions; I’m committed to keeping the project moving and I’m easy to collaborate with. Here’s how I picture our workflow: • You propose the tech stack (Kotlin, Java, Flutter, React Native—whatever you feel suits the brief best) and outline a development schedule. • Together we refine UI/UX wireframes. • You build modular, well-commented code, integrate any required APIs and handle basic QA. • We complete a round of user testing, apply final tweaks, and you provide everything needed for Go...

From java source to JIT code ,javac transformations to runtime compiler optimizations

...• Shows a rich history of pull requests and issues that are tied back to automated or manual tests. • Originated inside a real company and has been used in production—no demos, tutorials or AI-generated skeletons. • Lives in a domain such as finance, healthcare or government systems; if your project spans more than one of those areas that is perfectly acceptable. • Is primarily written in Java, Python, C++ or a comparable mainstream language; mixed-language monorepos are fine. What to send me: 1. A public or private link to the repository (GitHub, GitLab, Bitbucket, etc.). 2. A one-paragraph overview of the system’s purpose, the company it was created for, and the period of active development. 3. The key metrics: mandatory LOC, and if av...