Java jobs

I need day-to-day help customizing a steady flow of entry-level résumés for software-development openings in the technology sector. Each document must be tuned to the specific job description, highlighting relevant coursework, projects, inte...Quality benchmarks • All claims must stay truthful and verifiable. • Language: concise, active, American English. • Final files: editable .docx and matching PDF, plus a brief bullet list of keywords you injected. Expect a consistent volume—several résumés each week—so reliability and speed matter as much as writing skill. Familiarity with ATS best practices, software-development terminology (Java, Python, REST, Agile, etc.), and early-career applicant positioning is essential. If ...

I need an experienced web developer to help transition my e-commerce site from Java to HTML. Key Requirements: - Rework one page for better usability. - Add Google reviews on the restoration page. - Fix non-functioning PayPal links. Ideal Skills and Experience: - Proficient in Java and HTML - Strong background in e-commerce websites - Experience with integrating Google reviews - Familiarity with PayPal payment systems

I need a complete Android-only mobile app built from the ground up for my project, Jamzith ja. The core idea is defined, yet the feature set still needs to be refined and transformed into an intuitive, production-ready experience. I’m looking for a developer who can guide the process end-to-end—brainstorming UX, translating it into clean Kotlin or Java code, and delivering a signed release build on Google Play. Key deliverables • Interactive wireframes and UI designs approved before coding begins • Native Android app coded with modern SDK practices and a modular architecture • Integrated analytics and crash reporting, plus responsive layouts for phones and tablets • Ongoing commits to a private Git repo and clear documentation for future ma...

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...Python (FastAPI/Django), Go, Java, Apache Kafka, RabbitMQ, Redis, PostgreSQL. PROJECT B: Integrated Regulatory Management System (IRMS) * Goal: A standalone enterprise workflow automation portal and Electronic Document & Records Management System (EDRMS). * Core Deliverables: * Public-facing online licensing portal for application submissions, multi-stage approval workflows, and fee payment processing. * Centralized, searchable digital document repository (EDRMS) with strict Role-Based Access Control (RBAC). * Automated compliance tracking, inspection log management, and legal dispute tracking. * Multi-tenant helpdesk/support ticketing module for operator and public queries. * Ideal Skills: Full-Stack web development (React/Angular/Vue + Node/Python/Java...

...and syncs the moment a connection is available. • Role-based login to separate permissions for field staff and managers. • Simple filter/search to find jobs by date, worker or payment status. • One-tap export to CSV or PDF for month-end reporting. Deliverables • Release-ready APK for installation on any recent Android version. • Full Android Studio project with well-commented Kotlin or Java code. • Brief setup document showing how to add new calculation rules if my Excel sheet changes. Acceptance criteria 1. Every calculation in the original sheet produces the same numeric result inside the app. 2. A test job created by the performer account appears instantly in the manager view. 3. Payment status toggles update running balances c...

I need an objective technical feasibility review of my Java program before I invest further. The task is purely technical—no market or financial angles—so the report should zero in on whether the idea can be implemented, maintained, and scaled with confidence. What I expect you to probe • Program architecture: strengths, bottlenecks, and scalability limits. • Technology choices: the suitability of the current Java version, frameworks, libraries, and any third-party services. • Integration risk: how smoothly the program can plug into my existing systems and data sources. Deliverable A concise written report (PDF or DOCX) that calls out critical risks, offers practical mitigation steps, and ends with a clear go / no-go recommendation. Diagra...

...snippets. • Automated bug detection with one-click fixes and clear explanations. • Intelligent performance optimization that profiles, recommends, then applies improvements. Initial language scope The first release must work seamlessly with Python as well as front-end stacks built in HTML and CSS. If the architecture allows, we can later extend support to other languages such as JavaScript or Java without major refactoring. Primary users Development teams will be the main audience, so multi-user project spaces, role-based access, and integration hooks (Git, CI/CD, issue trackers) should sit at the heart of the design. Deliverables 1. A web-based MVP demonstrating the three core capabilities above. 2. Clean, well-documented source code and setup scripts (Docker...

...Core scenarios • Successful login • Product list sorted A-Z and Z-A • Add a product to the cart, then remove and re-add it • Full checkout flow with First name “ABC”, Last name “DEF”, Zip “123456” • Negative checkout where First name is left blank and the error is asserted • Validation that the Twitter and Facebook icons open their correct links Tech stack & structure – Language: Java – Test framework: TestNG (please use annotations and groups to keep suites tidy) – Browser: Chrome (WebDriver-manager or similar to keep drivers up to date) – Patterns: Page Object Model, clear helper / utility classes, and at least one example of polymorphism in action – Build:...

...lists since the previous day • Historical monthly P/E ratios for each ETF, covering the past three years Delivery and technical notes • The message should be dispatched through my iCloud account; if you prefer, you may suggest an SMTP fallback but iCloud is the target environment. • The job can be scripted in the language you feel is most efficient—Python with yfinance/pandas or a Node / Java alternative is fine as long as setup remains simple. • Scheduling must be fully automated (cron, Windows Task Scheduler, or a cloud function such as AWS Lambda—whatever suits the final build). • I only need a one-click setup guide plus well-commented source code; no graphical interface is required. Acceptance criteria 1. I receive the fi...

<PLEASE APPLY EXPRIENCED ONLY, its more than 2 year contract >The task spans both green-field builds and upgrades to our existing Java Spring Boot back-end and React typescript front-end codebases. New modules will be spun up from scratch while legacy screens, APIs, and database mappings receive incremental improvements, so versatility across the full stack is essential. We are looking for long time contract, flexible time, remote work, PART TIME for an IT company. SHOULD HAVE GOOD KNOWDGE USING Ai during work. please send Biodata with details

...slot, and pay in-app. • As soon as an order is placed, the customer sees live status updates and can follow the driver’s route on Google Maps until the groceries arrive. Management tools A lightweight web-based admin (or Firebase console extensions) should let me update inventory, set pricing & promos, assign drivers, and view analytics without touching code. Tech expectations Kotlin (or modern Java) in Android Studio, Firebase Auth/Firestore for user & data storage, FCM push notifications, Google Maps & Places for location services, plus integration with Stripe or a regional payment gateway for secure transactions. Deliverables • APK & Play-Store-ready bundle with signed release keys • Complete, well-commented source code in Git &bul...

...the ground up. The app should run smoothly on Android phones and tablets, guiding a customer from product browsing all the way to order confirmation and delivery. At minimum, the flow needs to cover browsing a live catalogue, adding items to a cart, scheduling or requesting immediate delivery, and checking out securely. I’m open to your recommendations on tech stack—whether that’s native Kotlin, Java, or a cross-platform framework that still produces a polished Android build. Clean architecture, modular code, and thorough inline documentation are very important because my in-house team will take over maintenance once the project is live. Please include examples of previous Android apps you have shipped—ideally in grocery, food, or parcel delivery—a...

...status dot, name, role, status text, current task - Status bar: Status text left, agent count right - Theme system: Full dark (#1a1a2e) and light (#f5f5f5) themes with 20+ color tokens, recursive widget theming - SimBackend: 6 agents with roles (diagnostic, repair, build, review, test, optimize), intent detection routing user input to agents, language detection (Python/Rust/Go/JS/Java/Solidity/C++), integration with LanguageEngine, CompressionEngine, HardwareEngine - Wallet: Connect dialog with 0x address validation, Arbitrum One network, 25.0 voucher balance on connect - Settings: Read-only info dialog - Headless test mode: 45+ tests runnable with --test flag SCOPE OF WORK — What needs finishing ───────────────────────────────────── The de...

...a long-press on any video clip, that clip should become “pinned.” A pinned clip must stay on the device indefinitely, while every unpinned clip should be automatically removed exactly one hour after it was created or downloaded. What I already have • The app already plays and lists video clips; you’ll be working inside an existing Android project. • Current codebase is in Kotlin, but clean Java is acceptable if you keep the modules consistent. What I need from you • Detect a long-press gesture on each clip thumbnail or list item and toggle its pinned state visually (e.g., overlay icon or colour change). • Persist the pinned flag locally so it survives app restarts. • Schedule background deletion of unpinned clips one hour aft...

I’m building a web-based product and need a seasoned Java developer to own the server side. The stack is straightforward: Spring Boot for the application layer, PostgreSQL for persistence. I already have the front-end team working on REST calls and a basic schema sketched out, so what I need now is a clean, well-structured backend that exposes the endpoints, handles business logic, and talks to Postgres efficiently. You’ll design and code the REST API, wire it to PostgreSQL with JPA/Hibernate, and set up sensible error handling, security (JWT is preferred), and unit tests. Maven or Gradle is fine—just keep the build simple and reproducible. A Dockerfile for local runs will help my QA team spin it up quickly. Deliverables • Full Spring Boot project with sou...

Hi, I’m Monika and I need a complete Android mobile app built from the ground up. This project is strictly Mobile app development, and the target platform is Android only. The work covers everything from refining the core concept with me, creating a clean Material Design-compliant interface, and coding the full stack in Kotlin or Java, through to final testing on multiple screen sizes and submitting the release build to Google Play. To wrap things up smoothly, I will require: • Production-ready APK plus full, well-commented source code • Brief setup and deployment documentation • Assistance during the Play Store publishing process Experience with Firebase, RESTful APIs, secure user authentication, and Git-based version control will make collaborat...

...initial code implementing WEB-SRM endpoints and receipt printing 3. Certification test checklist proving responses in the Revenu Québec sandbox Acceptance criteria: the sandbox validates every transaction type and an external dev team could build the final product using only the SRS you provide. If you already know the WEB-SRM spec, restaurant workflows and can write clean, well-documented code (C#, Java, Node, or similar), let’s talk timelines and get BlessPOS ready for the Québec market....

...supporting high-bandwidth features across Wi-Fi sockets. • Drive the critical modules selected for this build: the camera, IMU sensors, plus the speakers and microphones. • Optimise power draw, heat and battery life; handle sleep / wake cycles intelligently. Middleware • Integrate the OEM SDK, which exposes Android libraries first, and bridge any native C/C++ portions that sit beneath those Kotlin/Java calls. • Build or adapt media pipelines for real-time audio/video capture, encoding and playback. Mobile application • Deliver an Android app that discovers the glasses, pairs in a single step, shows live video previews, captures sensor telemetry and plays audio. • Expose in-app triggers for OTA firmware updates and diagnostic logs. Acce...

I need an Android application that recreates the core Rapido experience for use in just one city, fully branded with my own logo and colours. Users must be able to register or log in, book a ride, pay inside...or in-app) for monitoring rides and managing users • Deployment guide and one post-launch bug-fix cycle Acceptance criteria • A new user can sign up, book, pay and track a ride end-to-end without crashes or hangs • Each trip automatically appears in the ride-history list • App meets Google Play guidelines and runs smoothly on Android 8.0 and above Preferred tech stacks such as Kotlin, Java, Firebase, Node.js or similar are welcome as long as they keep the code clean, scalable and easy to hand over. Let me know your proposed approach and timeline, ...

...Android application, written purely in Java, that connects to an on-premise Microsoft SQL Server reachable over our local LAN (no cloud, no VPN). Once connected it should perform two kinds of database calls only: straightforward SELECT queries and a handful of existing stored procedures that I will supply. The result I care about is our Inventory data table; after every call the records have to appear in a clean, responsive tabular layout. The interface must feel modern yet simple: a single screen with the table and a search bar that filters rows as the user types. That is the only interaction required for now, though the code should be organised clearly enough that we could add sorting or filtering later. Deliverables • Complete Android Studio project (Java) with...

Java Cryptography Project – Caesar Cipher and Monoalphabetic Substitution I am looking for an experienced Java programmer to provide technical assistance, implementation guidance, debugging, and code review for a university-level cryptography project. The project involves developing an encryption and decryption application combining Caesar Cipher and monoalphabetic substitution. **Project Requirements:** 1. **Encryption:** Read plaintext from a file named `` and encrypt it using an alternating pattern: - Encrypt 6 letters using Caesar Cipher, with the shift determined by the alphabetical index of the next plaintext letter. - Encrypt the following 8 letters using a predefined monoalphabetic substitution table. - Repeat this pattern throughout the message. ...

I need an experienced Java/JSP security-minded developer to help me replace a single hyperlink on the Northern Railways site (page: ,4,385). The current link points to and must be updated to At the moment I have no server access, so the first step is a brief audit of the page structure, its deployment flow (likely Apache Tomcat on a Linux host), and the exact permissions or credentials required to make the change safely. I will supply our internal security documentation; all work must respect those protocols. Once you outline the legitimate method and confirm the level of admin or code-repository access I must secure, I’ll arrange that access. Afterward, you will implement the link swap

Java Trainer – Off-Campus Placement Program About the Role We are looking for an experienced and passionate Java Trainer / Industry Expert who can train students and fresh graduates to become job-ready for off-campus IT opportunities. The trainer will focus not only on teaching Java concepts but also on preparing students for coding assessments, technical interviews, projects, and real-world development scenarios. Job Location Talegaon Dabhade, Maharashtra Work Mode: Offline / On-site The trainer is required to conduct in-person training sessions at our Talegaon Dabhade location. Working Days Thursday, Friday & Saturday only This is a part-time position, with training sessions conducted exclusively on these three days. Key Responsibilities - Deliv...

...engineered with either Java (Spring Boot) or C# (ASP.NET Core)—whichever you feel will deliver the best performance, security, and maintainability. Core scope The project covers everything from architecture to deployment: account creation for vendors and customers, product and inventory management, search and filtering, shopping cart, order life-cycle tracking, and a flexible payment module. I have not settled on a specific gateway yet, so I’m open to your recommendation and subsequent integration. Clean RESTful APIs, solid unit and integration testing, and CI/CD pipelines are expected as part of the workflow. Key deliverables • React single-page application with responsive design • Secure authentication & role-based access (vendor, buyer, admin)...

...Android application that lets me look up UP Bhulekh land-records from my phone. The scope is deliberately small: the only in-app action is to search records by owner name and show the matching result exactly as it appears on the official site. A minimalist interface—logo, single search field, and a clean results screen—is all I need. You may implement it in Flutter or in native Android (Kotlin/Java). Under the hood you can either wrap the official website in a well-behaved WebView or call the public endpoints directly; whichever route you choose, the experience must stay fast and free of pop-ups or banners. No Play Store deployment is required. Just hand over: • A signed, install-ready APK • The complete, readable source code with basic build instructions ...

I’m planning a brand-new social media experience built exclusively for Android and need a developer who can carry it from first wireframe all the way to a polished Play Store release. The goal is a familiar yet fresh environment where users create profiles, share photos or short videos, follow one another, chat in real time and receive push notifications. I’d like clean, well-documented Kotlin or Java code, a modern Material-You interface and a lightweight, scalable backend—Firebase or a custom REST API, whichever you can justify best. Core features include secure sign-in (email, phone and Google), content upload with basic moderation tools, and analytics hooks so I can track engagement. Deliverables • Production-ready Android app (.apk and full source) ...

...working on long-term software projects. The goal is to build a robust, scalable cloud-based management platform with multiple modules, integrations, and features for different types of businesses and organizations. We're open to all experience levels, including beginners who have a good understanding of programming logic and are willing to learn. Experience with React, , Node.js, .NET, Java, PostgreSQL, APIs, or cloud technologies is a plus. We're looking for people who are responsible, communicate well, enjoy solving problems, and want to be part of a team for future projects. This is a long-term collaboration opportunity. Projects, budgets, deadlines, and payment terms will be discussed individually as opportunities become available. If you're interested, s...

...accurate and efficient on modern devices) to build a room mesh in real time or near-real time. 3. Measurement extraction & display
 • Derive wall-to-wall distances and ceiling height in centimetres/metres with ≤2 % error in typical indoor lighting. • Render a simple 2-D floor plan annotated with those measurements and allow export as PDF/PNG. Deliverables • Fully packaged Android (Kotlin/Java) and iOS (Swift/Objective-C) apps ready for TestFlight / internal testing • Source code with clear comments and build instructions • Brief technical document explaining the chosen CV pipeline, calibration approach, and accuracy benchmarks Acceptance criteria • I walk through a 4 m × 3 m × 2.5 m room once with my phone; th...

We are seeking Senior Full Stack Engineer with 5+ years of experience. At least one of the modern stacks (AI, React, Node.js, Python, .NET, Java, Go, Rust, and so on) Location: International Talents High communication skill in English is needed Please let me know if you are interested.

We’re looking for an experienced full-stack web developer to troubleshoot and fix bugs in an existing web project. Scope of work - Investigate and resolve reported b... Scope of work - Investigate and resolve reported bugs. - Fix layout, responsiveness, and functionality issues. - Test changes across major browsers and screen sizes. - Ensure fixes don’t disrupt existing features. - Provide a brief summary of the changes made. Requirements - Experience debugging and maintaining web applications. - Strong knowledge of HTML, CSS, JavaScript, PHP, Python, C#, Java, and relevant web frameworks. - Ability to work with an existing codebase. - Clear communication and attention to detail. We’ll share the project’s technology stack, bug list, and access details ...

...non-destructive ways. The core idea is to take an incoming music track, analyze its spectral and temporal features, and then re-synthesize it so the output feels like a fresh performance while still carrying some elements of its original recorded instrument different properties are expected as this is just a starting point. Here’s what I need from you: • A clean, well-documented codebase (Python, Java) that ingests stereo music files, performs detailed analysis (FFT, phase vocoder or another suitable method), and produces a re-synthesized signal using a refactored version of the Flow Synthesizer. • Parameter controls for users to experiment with texture, pitch, and time characteristics, ideally exposed through a simple UI modifications.. • Consideration f...

I'm seeking a freelancer to help with JavaScript homework. Requirements: - Expertise in JavaScript, especially with Java HTML - Ability to explain concepts clearly - Experience with homework assistance Ideal Skills: - Proficiency in JavaScript - Strong communication skills - Prior tutoring or teaching experience Please provide a brief overview of your experience.

...level). Every member should bring at least two years of hands-on experience building and maintaining production systems. The day-to-day work revolves around modern, component-based front ends and robust, scalable back ends. On the UI side you should feel confident with React or Angular; familiarity with Vue.js is welcome but not required. Server-side projects are currently split among Python, C#, Java and Ruby microservices, so strength in one or more of those languages is essential. Because several initiatives have an AI component, any practical exposure to machine-learning libraries or cloud AI services will be a plus. You will: • Design, code and review new features for web applications. • Collaborate in English during stand-ups and in Spanish during client sync...

I am concentrating this phase of the project on JavaScript, so your main job is to craft a responsive, interactive front-end layer that seamlessly ties into the existing back-end services written in Java and Python. The core of the assignment is to deliver polished interface behaviours that feel fluid to the user, while also handling data and form logic in-browser so the page never needs a clunky full reload. What has to be covered • User-interface interactions – subtle animations and effects that enhance, not distract – intuitive drag-and-drop for re-ordering items and uploading files – real-time updates pushed to the DOM (think websockets or long-polling) • Data manipulation on the client, including lightweight caching and transformatio...

...Technology Sales / Business Development Partner to help us acquire clients for our software engineering and technology staffing services. We provide pre-vetted software developers and engineering teams from India who can work with UK companies on contract, project or long-term engagements. Our technology capabilities can cover areas including: • Backend & Full-Stack Development • Frontend Development • Java / Spring Boot • .NET / C# • Node.js • Python • React / Angular • Mobile Development • Cloud & DevOps • AWS / Azure / GCP • Data Engineering • QA / Automation • AI / ML • Other technologies based on client requirements What you’ll do • Identify UK/US startups, SMEs and technology compani...

I already have a working Android food-delivery application and the full source code is ready for hand-over. I now need a developer who can discuss the fine points with me comfortably in Telugu and turn the required tweaks around fast. The code base is solid but a few modules must be exte...working within that limit before we begin. Deliverables (all due inside the 3-day window): • Updated Android Studio project with the new or improved modules fully integrated • Signed APK / AAB ready for testing • A concise change log so I can track what was altered Push to my Git repository once you pass internal testing and we are good to release. If you’re fluent in Telugu, confident with Java/Kotlin and Android Studio, and can hit the three-day turnaround, let&rsqu...

I have an existing Android application written in Java. The complete Android Studio source code is available and the application is already working in production. I need an experienced Android Java developer to make several specific fixes and small enhancements. This is not a new app development project. Main tasks: 1. Bluetooth thermal printer compatibility - Existing NETUM NT1809 printing must remain unchanged. - Add/fix support for a PT210 ESC/POS Bluetooth printer. - Main issue is formatting/font behavior of the Defect Tag, Minus-Carton Tag. - Physical printer testing may need to be coordinated with me. 2. Fix EXTRA carton status - EXTRA status currently carries over to following inspection records. - EXTRA must belong only to the applicable record/cart...

...experience and technical depth - Remote collaboration - Flexible engagement based on project needs - Performance bonuses for successful technical milestones - Additional bonuses for solving complex platform, Android, or virtualization problems - Long-term collaboration for strong and reliable performance SELF-FILTERING This is not a standard Android app development role Experience mainly with Kotlin/Java applications, Jetpack, Android UI, or application-level SDK work is not enough This is also not a standard DevOps role. Docker, cloud, or Kubernetes experience alone is not enough You should have real experience debugging or modifying Android below the application layer During the interview, we will ask you to walk us through a real Android platform or low-level systems pro...

...personal profile, connect with others, and share posts in a real-time feed. Smooth performance, clean Material-design UI, and modern Android best practices are essential throughout the project. What I already have: • A clear feature outline and early wireframes • Brand colours, logo assets, and user-flow notes • A rough release schedule What I expect from you: • Android-native code (Kotlin preferred, Java acceptable) • Secure email / Google sign-in, and a scalable database layer (Firebase or your suggested alternative) • Core social features: profile creation, follow / unfollow, image & text posting, push notifications, and basic in-app messaging • Well-structured project files that I can open in Android Studio, plus a signed APK ready for...

... Core scope • Sales reporting dashboards and printable summaries are the priority. • The app must process payments through popular mobile wallets (for example, Google Pay or any SDK you recommend). • Full offline functionality is essential so the cashier can keep working without internet and sync automatically once a connection is restored. Tech expectations You may code in Kotlin or Java and are free to use Android Jetpack, Room, or other standard libraries as long as the final build installs cleanly from Android 10 upward. Clean architecture, clear code comments, and a brief setup guide are mandatory so I can compile and sign the APK myself. Deliverables 1. Compilable Android Studio project with all source files. 2. Signed APK for quick testing. ...

I have an urgent requirement for legacy enterprise software projects/codebases. We are looking for privately owned repositories with substantial development history, real-world business logic, and genuinely human-developed code. Preferred Technology Stacks - COBOL - Fortran - RPG - .NET Framework / Classic ASP / VB6 / Legacy C# - Java 7 & earlier - C / C++ - Go - Rust - Ruby - Swift - Kotlin Key Requirements The project should preferably: - Be a long-running enterprise/business-critical application - Contain substantial real-world business logic - Be genuinely developed and maintained by human developers - Have authentic historical development and maintenance activity - Have meaningful commits, bug fixes, feature enhancements, PRs and issue history - Include multiple genera...

...configuration files. JSON — package manifests, API payloads, configuration, and structured data. Markdown — project documentation and development instructions. Main stack summary A developer should be strongest in: TypeScript + SQL + React/TSX + Node.js/Express They should also have practical familiarity with: HTML, CSS/Tailwind, Bash, OpenAPI, JSON, PostgreSQL, Drizzle ORM, Vite, and pnpm Python, Java, C#, Go, and Ruby are not currently required for the main LeadRescue codebase. The immediate focus is three-fold: • Feature development – shipping customer-facing functionality in short, well-tested iterations. • Performance optimization – profiling hot paths, tightening queries, and making sure our pages stay fast under load. • Bug fi...

I’m looking for a developer who can take my game concept and turn it into a fully functional Android app. The focus is purely on the Android platform, so deep knowledge of the latest Android SDK, Kotlin or Java, and Google Play deployment is essential. Scope • Build the core gameplay loop and supporting UI. • Implement smooth touch controls, basic animations, sound effects, and simple score tracking. • Optimize for common screen sizes and Android 12+. • Package a signed, ready-to-publish APK together with clean, well-commented source code. I have the initial game idea, basic wireframes, and art placeholders ready to share once we start. Code quality, performance on mid-range devices, and easy future updates are priorities. If you’ve shipped An...

I’m looking for a developer who can take my game concept and turn it into a fully functional Android app. The focus is purely on the Android platform, so deep knowledge of the latest Android SDK, Kotlin or Java, and Google Play deployment is essential. Scope • Build the core gameplay loop and supporting UI. • Implement smooth touch controls, basic animations, sound effects, and simple score tracking. • Optimize for common screen sizes and Android 12+. • Package a signed, ready-to-publish APK together with clean, well-commented source code. I have the initial game idea, basic wireframes, and art placeholders ready to share once we start. Code quality, performance on mid-range devices, and easy future updates are priorities. If you’ve shipped An...

...location. Because I update stock daily, the app needs to sync automatically with my website or a simple back-office you provide. I also keep an internal “scorecard” rating for every property; please display that score beside each listing so clients can gauge quality at a glance. A clean Material-Design UI, smooth media loading, and responsive map interaction are essential. You may work in Kotlin, Java, or a proven cross-platform framework—as long as I receive a production-ready APK and full source code. Deliverables • Fully functional Android app signed for release • Complete, well-commented source code and build instructions • Sync mechanism/API that pulls listings, media, prices, contacts, map coordinates, and scorecard data from my web...

...**real-time Money Movement Transaction Fraud Detection platform** designed to monitor financial transactions, identify potentially suspicious activity, and trigger fraud alerts based on configurable business rules and transaction patterns. The platform follows a **microservices and event-driven architecture**, using Java, Spring Boot, and Apache Kafka to process transaction events reliably and at scale. ## Key Responsibilities * Developed scalable backend services using **Java and Spring Boot**. * Designed and implemented **REST APIs** for transaction processing and service-to-service communication. * Implemented **Apache Kafka** for real-time transaction event publishing and consumption. * Developed transaction validation and fraud detection business logic based on con...

...stalemate/threefold repetition detection, timers, resign/draw options). • Seamless user account handling via Google sign-in or email. • Lightweight push notifications for ongoing games. • A small but useful stats screen: ELO-style rating, win/loss record, average move time. Deliverables 1. Production-ready APK plus signed AAB for Google Play release. 2. Complete, well-commented source code (Kotlin/Java, Flutter, or Unity C#—your call, as long as the build stays fast and maintainable). 3. Brief setup guide so I can compile and upload future updates myself. 4. One live test round with me on TestFlight-like internal testing to confirm matchmaking, timers, and resignation flow. Acceptance criteria • Multiplayer match connects in under 5 sec...

The multi-vendor food-delivery app I already have is live on Android, but it still needs a round of focused development before launch. You will be working on an existing Kotlin/Java codebase (partial documentation is available) to polish the product, fix any blocking issues, and implement the final tweaks I outline once we start. Scope • Review the current repository, understand its architecture, and map the gaps from the partial docs provided. • Implement the agreed-upon improvements—this may include visual refinements, streamlined ordering flow, or additional modules such as payment, real-time tracking, or other features we prioritise together. • Produce clean, well-commented code and a short hand-off note so future maintenance is straightforward. Time...

Backend & Web Development: Full-stack and backend development using Java (Spring Boot, Servlets, JPA/Hibernate), PHP, MySQL, and RESTful APIs. Experience with HTML5, CSS3, and Flutter for mobile state management. Systems & Low-Level Programming: Practical knowledge of operating systems concepts, memory addressing, assembly language (x86, SIC), process scheduling, and virtualized Linux environments (Ubuntu/VirtualBox). Data Science & Machine Learning: Exploratory data analysis, visualization, and classification algorithms (Naïve Bayes, Decision Trees, Neural Networks) using Python, pandas, scikit-learn, and matplotlib. Software Engineering Design: Proficient in designing system architecture and modeling artifacts (UML sequence diagrams, Use Case diagrams, dialog maps...