Java simulation projects punët

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I need an experienced developer to integrate the Sharekhan Trade Tiger API. The primary function is accessing 20 years of historical data. Additionally, I need real-time market data for the equity market. Key requirements: - Access to 20 years of historical data - Real-time market data for equities - Proficiency in working with financial APIs...the Sharekhan Trade Tiger API. The primary function is accessing 20 years of historical data. Additionally, I need real-time market data for the equity market. Key requirements: - Access to 20 years of historical data - Real-time market data for equities - Proficiency in working with financial APIs - Experience in data handling and integration - Strong programming skills, preferably in Python or Java Please provide examples of previous sim...

Buscamos un Arquitecto Backend / Senior Java Developer con más de 10 años de experiencia comprobable para diseñar, estructurar y desarrollar desde cero los proyectos base de un sistema complejo. Este rol es crítico y definirá la base técnica sobre la cual se construirá todo el producto. **Objetivo del rol** Diseñar e implementar una arquitectura backend sólida, escalable y mantenible, estableciendo estándares técnicos obligatorios y una base profesional lista para escalar con múltiples equipos. **Responsabilidades principales** * Diseñar la arquitectura del sistema aplicando DDD y arquitectura hexagonal * Construir y estandarizar los proyectos base backend * Definir una separación es...

I am building a specialised web application for an import-export business and need an experienced full-stack developer who is comfortable in both Angular and Java. The core of the platform will be written in Java on the server side, exposing RESTful endpoints, while the client side must be a clean, responsive Angular interface that feels fast even when large data sets are moving through it. You should have at least four years of hands-on experience with: • Modern Angular (v10+) components, services and state management • Java (preferably 11+) with Spring Boot or a similar framework for rapid API development • Secure, token-based authentication and role management • Relational databases and basic schema design What I need from you: 1. A modul...

We are looking for a highly skilled Java Full Stack Developer with 5+ years of hands-on experience in designing, developing, and deploying scalable applications. The ideal candidate should have strong expertise in Core Java, Spring/Spring Boot, RESTful web services, MySQL, and REACT. Experience with Liferay is added advantage. ⸻ Key Responsibilities • Design, develop, and maintain Java-based backend services and RESTful APIs • Work on full-stack development, including front-end components and integration with backend systems • Develop efficient database queries, procedures, and schemas using MySQL • Collaborate with cross-functional teams to deliver high-quality software solutions • Troubleshoot, optimize, and improve application performance &b...

...designing systems according to USA standards (NEC, IEEE, UL, etc.). The ideal candidate must have hands-on experience in commercial and industrial-scale solar projects, not just residential systems. Scope of Work: Design complete Solar PV systems (rooftop / ground-mounted) Perform load calculations and system sizing Prepare single line diagrams (SLD) Create detailed layout drawings (AutoCAD or similar) Equipment selection (inverters, panels, protection devices) Ensure compliance with US codes and standards (NEC) Provide bill of materials (BOM) -Simulation tools like Helioscope / PVsyst Requirements: Proven experience in US-based solar projects Strong understanding of NEC codes Experience with commercial & industrial systems (must) Proficiency in tools like...

...lightweight option) so I can simulate and fat-finger test every sequence before we go live. Deliverables 1. Complete CODESYS (2.3 0r 3.5) project file (.project archive) with all libraries and global constants. 2. A spreadsheet that documents every Modbus address, data type and engineering unit. 3. Step-by-step commissioning checklist plus short video or screenshots proving the logic runs in simulation. Specify PLC &I/O configuration and program a PLC control system based on the i/O quantity below 2x PLC (750-885) 21x Digital Inputs 39x Analogue inputs (8x 4-20ma, 31x resistive) 58x Digital outputs The PLC and I/O will be duplicated, both will feedback modbus data to the vessel master, loss of heartbeat signal will determine what PLC vessel master reads from...

...now need to turn it into a working motion model inside Siemens Simcenter 3D. The scope is limited to the digging and lifting cycle—boom, stick, bucket and their hydraulic actuators—so there is no need to model swing, rotation or travel. Your job is to import or link my CAD, define the joints, masses, centre-of-gravity data, hydraulic cylinders and motion drivers, then run a complete dynamic simulation of one full digging–lifting sequence. I’m particularly interested in actuator loads, reaction forces at the pins, power/energy consumption and overall cycle time, so please set up the appropriate sensors and output requests. Deliverable • A concise performance analysis report (PDF or Word) generated directly from Simcenter 3D that includes plots, key...

...tracker) dengan pengingat notifikasi. • Modul aktivitas kesehatan—misalnya log olahraga ringan, meditasi, atau catatan asupan air. • Sistem poin atau badge untuk memotivasi konsistensi dan rasa tanggung jawab. • Dasbor ringkas yang menampilkan statistik kemajuan harian dan mingguan. Saya membutuhkan: 1. Desain antarmuka yang sederhana dan ramah pemula. 2. Pengembangan full-stack Android (Java atau Kotlin), termasuk integrasi local database/Room atau solusi lain yang Anda rekomendasikan. 3. File APK siap install, beserta kode sumber yang terdokumentasi singkat agar mudah saya kembangkan lanjut. 4. Uji coba dasar pada beberapa ukuran layar serta versi Android terbaru yang masih banyak dipakai. Bila Anda memiliki pengalaman membangun aplikasi p...

...information for every line. 4. Push notifications for all user roles covering delays, schedule changes, and service announcements. 5. Secure sign-in with role-based views (Passenger, Driver, Admin). 6. A simple backend (Firebase, AWS, or your suggested stack) that stores routes, schedules, and location streams efficiently. Deliverables • Full Android Studio project with clean, well-commented Java code. • Backend source, database schema, and deployment instructions. • API documentation and a short user guide so I can onboard new drivers and admins myself. • One-week post-handover support to squash any urgent bugs. • build debug APK that can be shared with users to install it in physical devices and interact with directly If you have previou...

We need to create webview Mobile app for andorid and ios by this link "" in flutter and app have features app icon, splash screen, Enable Installs Statistics, Enable Java Script, Enable Swipe To Refresh, Load Cache Else Network, Allow HTTP Requests, Add Internet Permission, Add Storage Permissions, Add GPS Permissions, Add Audio Permissions, Add Video Permissions, Enable Firebase setting, Enable Push Notification some more requirement Requirements: • Load a specific URL inside a WebView • Pull-to-refresh support • Error handling (e.g. show a message if no internet connection) • App icon and splash screen (we’ll provide design assets) • Minimal permissions (e.g., allow file/camera upload via browser input type) • Push notifications via fi...

We're currently hiring Sales Agents (Chatters), and you might be a great fit for the role. Want to test your skills? Here's a quick overview of what we ...Performance-based growth > higher sales = higher commissions and bonuses - 10-hour shift with a 1-hour paid break - 5-6 working days per week, with 1-2 days off (your choice whether you can work 6 days or 5 days per week) If you're interested and confident in your ability to sell and engage, go ahead and proceed through the link below. You'll be asked to provide basic information and complete a short simulation (via TG), where we'll assess your chatting and sales skills. We're excited to see what you can do, and we hope to see your name in the system very soon! >

I need a comprehensive online entrance exam software built on Java technology. The software should support multiple-choice questions, essay-type questions, and problem-solving/coding questions. Key Requirements: - User Roles: Students, Examiners/Teachers, Administrators - Features for Exam Creation and Management: - Question Bank: A robust repository of questions - Automated Grading: For efficient evaluation - Timed Exams: To simulate real exam conditions Ideal Skills and Experience: - Proficiency in Java and experience with developing educational software - Knowledge in database management for a question bank - Familiarity with automated grading algorithms - Experience in creating user-friendly interfaces for multiple user roles Looking for a developer who can deliv...

Saya ingin menghadirkan aplikasi Android bernama “10 Juta Pertama”. Fokus utama versi awal ini sederhana: aplikasi harus berjalan mulus di Android, menawarkan pengalaman pengguna yang rapi, dan mendukung pembelian dalam aplikasi (in-app purchases) sebagai sumber monetisasi. Lingkup kerja: • Rancang struktur proyek di Android Studio (Kotlin atau Java, pilih yang paling efisien). • Buat antarmuka inti—layar beranda, detail fitur, dan halaman pembayaran—dengan tampilan modern namun ringan. • Implementasikan Google Play Billing Library agar transaksi in-app berjalan aman dan sesuai pedoman Google. • Sertakan dokumentasi setup dan panduan rilis ke Google Play Console. Keluaran yang saya butuhkan: APK siap uji, kode sumber terorgan...

I'm looking for an experienced sales freelancer to find and close clients for Machine Learning and Python development projects. Your job is to prospect potential clients, pitch our services, and bring in signed projects. You will handle the initial communication until the client is handed off to our technical team. We work on ML models, data analysis, Python automation, AI solutions, and chatbot development. This is a commission-based role. You earn a percentage of every project you close. The more you bring in, the more you earn. Remote and flexible work arrangement. Ideal candidate has experience selling tech or software services, knows how to use platforms like LinkedIn or Upwork for outreach, and has strong English communication skills. Please include examples of pas...

Saya ingin menghadirkan aplikasi Android bernama “10 Juta Pertama”. Fokus utama versi awal ini sederhana: aplikasi harus berjalan mulus di Android, menawarkan pengalaman pengguna yang rapi, dan mendukung pembelian dalam aplikasi (in-app purchases) sebagai sumber monetisasi. Lingkup kerja: • Rancang struktur proyek di Android Studio (Kotlin atau Java, pilih yang paling efisien). • Buat antarmuka inti—layar beranda, detail fitur, dan halaman pembayaran—dengan tampilan modern namun ringan. • Implementasikan Google Play Billing Library agar transaksi in-app berjalan aman dan sesuai pedoman Google. • Sertakan dokumentasi setup dan panduan rilis ke Google Play Console. Keluaran yang saya butuhkan: APK siap uji, kode sumber terorgan...

My Gazebo hospital-auction simulation runs three TurtleBot3s under ROS 2 Humble on Ubuntu 22.04. The nodes launch without crashing, NLP commands publish correctly, yet nothing appears or moves in RViz. RViz throws its usual “Global Options → Fixed Frame does not exist” warning, so the TF tree clearly is not reaching the visualiser; after that the robots ignore the velocity messages as well. I need someone experienced with ROS 2 Humble, TF2, Gazebo / Ignition, and TurtleBot3 launch stacks to jump in, inspect the running graph, and eliminate the missing-frame problem so the three bots become visible and responsive again. I have all launch files, URDFs, and NLP command source ready to share over a screen-share or repo. You’d trace the TF broadcasts, confirm the ...

1. Project Overview(Backend Microservices System (SPRING FRAMEWORK ONLY)) We are developing a large-scale, enterprise-level digital commerce platform on a Java-based microservices architecture (Spring Ecosystem). The development phase is "LARGELY COMPLETED". We are not looking for a builder to start from scratch, but rather a "finisher"—a skilled Backend Engineer to take ownership of the existing codebase. The primary goal is to validate current integrations, stabilize the logic, and ensure the system is production-ready through rigorous testing. WE WILL PROVIDE TESTING HELP FROM OUR SIDE TOO. 2. Current Project Status & Scope The following microservices have been developed. Your role is to ensure these services communicate seamlessly, handle edge cas...

...Minh City and would strongly prefer someone who can meet on-site when needed to review schematics, probe the board, and iterate quickly once the bitstream is loaded. Remote collaboration is possible, but local availability will weigh heavily in my decision. Final deliverables • SystemVerilog RTL source targeting the DE-10 • Self-checking ModelSim test-benches with assertion coverage • Simulation logs, waveforms, and coverage reports demonstrating pass criteria • Synthesis/timing report confirming the design meets the board’s constraints • Brief hand-over document so I can maintain and extend the design later If you have a solid track record of taping out—or better yet, shipping—FPGA designs of similar complexity, I’...

...cargar una lista M3U remota, pero la aplicación debe tener un campo para ingresar una URL de la lista M3U personalizada. - La aplicación debe mostrar un logo al momento de cargarse. • Función de búsqueda integrada para localizar rápidamente canales dentro de la lista. Entregables • APK instalable y versión de prueba firmada en modo debug. • Código fuente completo (Android Studio, Kotlin o Java) con instrucciones para cambiar la URL/archivo de la lista M3U. • Breve guía de instalación y uso. Valoro un arranque rápido, consumo ligero de recursos y compatibilidad con la mayoría de dispositivos Android TV actuales. La aplicación debe ser similar a la siguiente: (M3U IP...

...mismatch keeps resurfacing. I clearly need a deeper diagnostic and a clean, reliable fix. What I need from you is: • Root-cause analysis explaining why execution, position tracking, and internal state become unsynchronised under rapid or partial fills. • Corrected code (or a well-documented patch) that guarantees exit order quantities always mirror the current position. • A repeatable test or simulation showing the solution working in high-velocity/partial-fill scenarios. • A concise hand-off note so I can maintain or extend the solution confidently. Acceptance criteria: • After the fix, every time a new TP/SL pair is queued, their quantities exactly equal the open position size at that moment. • No orphaned or over-sized exit orders can ...

I am building a full-path DVB-T2 physical-layer simulation in MATLAB / Simulink and need a clean, well-documented model that demonstrates Adaptive Modulation and Coding using Quadrature Amplitude Modulation. The core emphasis is on the modulation scheme itself rather than error-control blocks or post-detection processing, so the model should let me vary constellation orders (e.g., 16-QAM, 64-QAM, 256-QAM) and observe the impact on throughput and BER under different channel conditions. Key elements I need: • A runnable Simulink (.slx) file that instantiates the complete DVB-T2 baseband chain up to the QAM mapper, includes channel impairment blocks (AWGN, fading), and ends with demodulation so I can plot BER and EVM. • Parameter masks or scripts that let me switch conste...

...operation. • Behind the scenes, the system should borrow just long enough to cover the transfer, pay only the network fee from Wallet A, and then settle so the balance never actually rests in Wallet B. • Real-time transaction status updates while the operation is in flight and an automated check that confirms the loan was repaid in the same block. • A transaction history log that records each simulation with hash, timestamp, and success/fail state for later review. I’m focused on the mechanics and visibility, not production funds, so feel free to use testnet resources or small-value mainnet calls during development. Deliver clean, well-commented code (JavaScript/TypeScript with TronWeb or another suitable SDK is fine), plus a short README that shows me...

...double-head CNC machines driven by both Siemens and Fanuc controls, and every part runs through Surfcam. The immediate need is clean, collision-free CNC programs that fully exploit the two heads, cover any required 3D modelling tweaks, and are ready to post from Surfcam without further editing at the machine. Surfcam projects will arrive as rough part sketches or STEP/IGES models; toolpath generation, head synchronization and final G-code are expected back. Please keep each program simulation-verified inside Surfcam so that when I load it on either controller it runs from the first part. Deliverables • Native Surfcam files with documented operations • Verified G-code for Siemens and for Fanuc (separate posts) Programs that cut accurately on both hea...

...already in production; performance slow-downs on the older Mirth instances are the issues I meet most often. All access is through AnyDesk screen-share sessions—no direct log-ins or code exports—so you should be comfortable working live while we talk through each ticket. Your background must cover both the classic Mirth interface and the newer BridgeLink tool-set, with enough HL7, JavaScript, Java and SQL knowledge to trace bottlenecks, tweak transformers, and keep message queues flowing smoothly. Typical tasks you’ll handle: • Diagnose and resolve performance issues on legacy Mirth channels • Update or patch existing channels/destinations across both platforms • Build an occasional new channel when a facility is onboarded • Docum...

I need my earlier casual-wear line—four to six coordinated pieces—re-created as fully dressed avatars in Clo3D, and I need everything wrapped up within 48 hours. I’ll forward the flats, reference photos, fabric details, and any specs I have the moment we start, so you can dive straight into garment construction and simulation. Your task is to rebuild each style in Clo3D, drape it realistically on the default avatar (or a size-appropriate one if you prefer), assign the correct fabrics, adjust fit, and polish the final presentation so it mirrors the original collection. Fast, accurate pattern work and an eye for casual silhouettes—think tees, relaxed pants, hoodies, light jackets—are essential, because the finished looks must feel exactly like my physica...

...A sandbox integration that demonstrates at least one live mobile wallet transaction will form part of acceptance testing. Tech Stack Native Swift/Kotlin or a robust cross-platform framework like Flutter or React Native is acceptable; I’m open to your professional recommendation as long as performance, security, and code maintainability are fully addressed. A containerised backend (Node.js, Java Spring, or similar) running behind an API gateway with JWT or OAuth 2.0 is preferred. Deliverables (MVP) 1. Universal iOS and Android apps compiled for App Store and Google Play internal testing. 2. Secure backend API with full documentation and Postman collection. 3. Admin/ops panel (basic) for dispute management and escrow release. 4. Automated test suite covering c...

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...integrity, ensuring full control even when no user is logged in. Core Deliverables: Driver-Level Capture: Implementation of an Indirect Display Driver (IDD) or WDDM Mirror Driver to capture frames directly from the GPU buffer. Secure Desktop Access: Ensure the capture agent can switch between the Default and Winlogon desktops seamlessly via a SYSTEM Service. Input Injection: High-integrity input simulation (Mouse/Keyboard) that works on UAC prompts and the Windows Login screen. Session 0 to Session 1 Bridge: A robust service-to-user-session IPC (Inter-Process Communication) framework. Required Expertise (Technical Requirements): Languages: Expert-level C++ and C#/.NET. Windows Driver Development: Proficiency with WDK (Windows Driver Kit), UMDF (User Mode Driver Framework), and th...

Saya ingin mengembangkan sebuah aplikasi media sosial untuk platform Android. Fokusnya adalah pengalaman berbagi konten singkat dan interaksi ringan antar-pengguna. Lingkup kerja yang saya butuhkan: • Rancang arsitektur front-end (Kotlin/Java) dan back-end ringan—Firebase atau solusi setara sangat dipertimbangkan. • Buat UI modern sesuai pedoman Material Design. • Implementasikan fitur inti: pendaftaran & login (email/Google), profil pengguna, unggah foto / video singkat, like dan komentar, notifikasi push dasar, serta pencarian teman. • Siapkan database cloud, autentikasi, dan penyimpanan berkas. • Sediakan dokumentasi build supaya aplikasi mudah dipelihara dan dikembangkan lebih lanjut. Kriteria penerimaan: – APK debug & rel...

I'm looking for a Python script to simulate DDoS attacks for the purpose of testing defense mechanisms. The simulation should cover: - Detection mechanisms: How to identify DDoS attacks. - Mitigation strategies: Methods to counteract the attacks. - Attack patterns: Different types of DDoS attack vectors. The level of detail should be intermediate, providing some technical specifics without going too deep. Ideal skills and experience: - Strong proficiency in Python - Experience with DDoS attack simulations - Knowledge of network security - Ability to document the simulation process clearly I need it within 2days of posting happy to pay, and i need screenshots and explained briefly on a document with between 5-8 mistakes pointed and explained why it wouldn’t wor...

I have a fully tested TradingView strategy using open access PineScripts, there is a separate pinescript for each indicator and there are Seven Indicators total. The strategy needs to be ported over to NT8 intended to be used as an automated strategy. Your task would simply be to port over each indic...custom alerts or risk templates are required right now—just reliable automated execution of the Range Filter reading the crossover signals for Automation. Deliverables: • Clean, well-commented NinjaScript (.cs) file ready to import • Quick walkthrough or notes on settings so I can verify behaviour against TradingView I will test side-by-side on historical data first, then run it forward in simulation. If the trade timings match to the bar and orders fire corr...

...simple Python-based blockchain (search for "Simple Python Blockchain" on GitHub). The Action: Write a script where, every time an ONOS controller blocks an IP address, it sends that IP to the Python blockchain. Simple Words: This ensures all controllers are reading from the same "Blacklist." Step D: The "DDoS" Test What to do: Use a tool like Scapy or Low Orbit Ion Cannon (LOIC) script in your simulation. The Action: Target one controller and watch it struggle. The Result: Show that the other controllers are still working perfectly and that the "Bad Car" is blocked everywhere else....

I need a fully-parameterised ASPEN Plus V14.2 model that captures the key biological steps of anaerobic digestion so I can observe how the plant responds when I vary two levers: substrate concentration and hydraulic retention time. My core interest is methane production, so the flowsheet must report CH₄ flow rate (Nm³ h⁻¹ or similar) at every run and allow easy extraction of the data for comparative plots. Your task is to build, validate and hand over: • the working ASPEN Plus (.bkp) file with all relevant property methods and reaction kinetics implemented, • a concise run guide that shows where and how to change the two investigated parameters, and • a brief results note or dashboard (Excel, MATLAB or embedded Aspen Analysis) illustrating at least three op...

...flows are defined; I now need a developer who can translate them into a smooth, production-ready app. You will own the coding of the Android front-end and connect it to a scalable cloud back-end that supports real-time data exchange, notifications, and secure user authentication. Clean architecture, thoughtful UI/UX, and solid performance are priorities. I’m open to your recommended stack—Kotlin or Java in Android Studio with Firebase, RESTful APIs, or other proven solutions. Deliverables • Complete Android Studio project with readable, well-commented source code • Signed release APK/AAB ready for Google Play submission • Concise setup & deployment documentation When you reply, please share links to Android social apps you’ve built, o...

I'm seeking an experienced developer to improve my existing front-end tests using Java, Selenium, and Cucumber. Key tasks include: - Analyzing current test suite - Identifying and resolving inefficiencies - Enhancing test coverage and reliability Ideal skills and experience: - Proficiency in Java, Selenium, and Cucumber - Strong background in front-end testing - Experience with test optimization and debugging Looking for someone detail-oriented, with a strong problem-solving mindset.

Saya ingin...Ruang lingkup: • Rancang UI/UX sederhana dan intuitif (material design). • Kembangkan fitur inti: daftar peluang, detail langkah-langkah, bookmark, dan notifikasi. • Bangun backend ringan (Firebase atau setara) untuk sinkronisasi konten serta penyimpanan data pengguna. • Sertakan contoh data dummy agar saya bisa melihat alur lengkapnya. • Buat APK siap instal beserta source code terstruktur (Java atau Kotlin). Kriteria penerimaan: • Aplikasi berjalan lancar di Android 8+. • Navigasi jelas dan bebas crash. • Kode diberi komentar seperlunya agar mudah dipelajari dan dikembangkan. Saya terbuka jika Anda memiliki ide tambahan, atau jika nanti kita ingin memperluas ke iOS atau Web. Kirimkan portofolio proyek serupa da...

...) * Developing backend services and APIs (Node.js or Java preferred) * Designing and implementing the database schema (PostgreSQL or equivalent) * Implementing task workflow logic, role-based dashboards, and admin controls * Integrating payment systems (e.g., Stripe or similar) * Setting up cloud infrastructure and deployment (AWS, GCP, or equivalent) * Ensuring security best practices and performance optimization Nice-to-have experience includes building marketplace platforms, SaaS products, workflow/task management systems, or gig economy applications. The ideal candidate should be comfortable making product and technical trade-offs, not just executing instructions. Please include in your proposal: * Relevant past projects (especially marketplaces or workflow systems)...

I’m building a new web application and the entire user interface needs to be planned, coded, and polished in React while communicating seamlessly with an existing Java-based REST API. The goal is a fast, responsive, component-driven front end that speaks the same language as the Java services behind it, so a solid grasp of both React (hooks, context, modern tooling) and core Java concepts is essential. Scope of work • Set up the project scaffold (Create React App or Vite, ESLint, Prettier, Jest). • Implement authentication against the provided Java endpoints, handling token storage and refresh. • Develop a reusable component library and page layouts that match supplied Figma designs. • Integrate REST calls for dashboard widgets...

The task is to build a complete Android utility-style mobile app, taking it from initial architecture through to a polished Google Play–ready release. I need one person who can comfortably handle both the client side (Kotlin / Java, Jetpack components, adaptive UI) and the server side—API design, database schema, and cloud deployment—so every layer meshes smoothly. Core expectations • Clean, modern Android codebase with clear separation of concerns • Secure backend (Node.js, Django or similar is fine) exposed through REST/GraphQL endpoints • Basic authentication, settings storage and offline data caching typical of a productivity or tool-oriented app • Unit tests plus concise build & deploy documentation Deliverables 1. Full Andr...

My Android application is already live, but a lingering bug keeps mis-displaying the user’s Name and Referral No. I need an experienced Android developer who can dive into the existing codebase, trace the root cause, and push a clean, well-documented fix to Git (or your preferred VCS). Scope of work • Review the current Kotlin/Java code (the project uses standard Android Studio tooling). • Identify why the Name and Referral No. are not updating or showing correctly. • Implement a solid fix, test it across the latest Android OS versions, and supply an APK or bundle for verification. • Leave concise inline comments so future maintenance is straightforward. Deliverables 1. Updated source code with the bug resolved. 2. A brief change-log summarising what was ...

...accessing camera, storage, or sensors; the app must never crash on denied permissions. • Keep UI components modular and reusable—Material Design guidelines are a must so the catalog, product detail, and checkout screens feel consistent and modern. • Implement secure token-based authentication and persist sessions locally without compromising user privacy. • Ship the full, well-documented Kotlin/Java source, a signed release APK, and a short README explaining build and deployment steps. This is primarily an E-commerce app, so flawless product browsing, smooth cart operations, and responsive checkout flow are non-negotiable. I’m comfortable iterating in milestones: product catalogue first, cart and payments next, polishing and optimisation last. I...

I want to turn a fresh idea into a polished desktop application I can sell and use to support my family. I’m starting from the ground up, so I need a developer who can guide me through the full lifecycle—defining a viable concept, choosing the best tech stack, coding, testing, and packaging the final installer. You’re free to work in a language you’re most comfortable with—whether that’s C#, Java, Python, Electron/JavaScript, or something comparable—as long as the result runs smoothly on Windows and can later be adapted for macOS or Linux if sales demand it. Robust error handling, an intuitive UI, and clean, well-commented code are must-haves so I can maintain or expand the product later. Deliverables • A brief proposal outlining tw...

We’re looking for a Finland-based freelance developer! Looking for someone experienced in Java and comfortable working with AWS cloud environments to help us maintain and improve our systems. What we need: Strong Java development skills Hands-on experience with AWS (deployment, monitoring, maintenance) Ability to troubleshoot, optimize, and keep systems running smoothly Good communication and ability to work independently Nice to have: Experience with cloud architecture and scalability Familiarity with CI/CD pipelines This is a freelance/contract role with flexible hours. If you’re interested or know someone who might be a great fit, feel free to reach out!

I need a production-ready robotic welding arm built in Blender that I can drop straight into an industrial-simulation scene for unreal engine . The model should sit in the “moderate detail” sweet spot: clean, believable geometry with sensible poly counts, visible joints, cabling and a realistic torch head, but without the ultra-fine nuts-and-bolts treatment that would bloat file size. Please rig the arm so every axis of motion is functional—base rotation, shoulder, elbow, wrist, and torch swivel—and then create a short, looping cycle that shows a full weld sequence: move into position, strike arc, trace a seam, retract, and reset. All pivots have to align with real-world kinematics so the animation can be retimed later without drifting. PBR materials matter...

I want to turn our in-house gas-turbine know-how into an engaging, self-paced online course built entirely around interactive modules. Your job is to design and develop those modules so learners don’t just watch—they experiment. The core of each lesson must be simulation driven. Trainees should be able to click through virtual engine bays, strip components, reassemble them, and see immediate feedback on what went right or wrong. Drag-and-drop activities will reinforce part identification, torque-sequence orders, and seal placement. I also need decision-based scenarios that ask, “Would you proceed with this clearance reading?” or “Which risk mitigation step comes next?” and then show the consequences. At any point learners must be able to pull up ...

...Listings should appear on an interactive Google Maps view so location becomes immediately clear. I also want integrated payment processing for reservation fees or first-month deposits, plus a straightforward rating & review system so both parties build trust after every transaction. Essential deliverables • Complete UI/UX designs (Figma or similar) • Production-ready Android code (Kotlin or Java) with clean architecture and documented APIs • Admin panel or backend endpoints enabling listing moderation, user management, and payment tracking • Play Store-ready APK, signed and aligned • Source code repository with build instructions and a short demo video that walks through search, profile login, chat, map view, payment flow, and review submis...

I’m Erwin, 34, and I want to bring my idea to life as a native Android app. Right now the concept is open, so I’ll lean on your expertise to shape the feature set and interface while keeping the build clean, fast, and future-proof....with me to refine the core idea and user flow. • Design a simple, modern UI that follows Google Material Design guidelines. • Develop the full Android application, including any required API calls or local data storage. • Deliver the complete, well-documented source code and a release-ready APK. Please include • Links to Android apps you’ve developed. • Your preferred tech stack (Kotlin, Java, Flutter, etc.). • Estimated timeline and any questions you need answered before starting. I’m re...