Hire the Best Mobincube Specialists

I am a professional web developer with over 12 years of experience. My current main framework for web development is Ruby on Rails. I started using this framework in 2013 and eventually fell in love with it. Rails has now become a part of my life. Using Ruby on Rails and other technologies, I can realize innovative ideas and turn them into products that add great value to users. I always look for new challenges and never stop improving myself in order to become an expert in the field of web development. My main areas of expertise: + Ruby on Rails + Ruby gems: Devise, Carrierwave, Paperclip, HAML, Capistrano, Resque, Sidekiq, Mongoid and more + TDD and Unit Testing with Cucumber, Rspec, Cabybara + Front-end technologies: AJAX, CSS3, HTML5, jQuery, ReactJS, React-Redux + Mobile-first responsive design: Bootstrap, Zurb Foundation + Relational and NoSQL databases: MySQL, PostgreSQL, MongoDB, Redis + Payment service integration: Paypal, Stripe, Checkout, Inpendium + Deployment platforms: Heroku, AWS, DigitalOcean, VPS + Amazon Web Services: CloudFront, Elastic Load Balancer, OpsWorks, ElasticCache, ElasticBeanstalk, etc + Social network and third-party integration: Google Maps, Google API, Facebook, Twitter + Multilingual web applications + Git workflow + Management tools: Trello, Pivotal Tracker, Redmine, JIRA.

I’m an Embedded Systems Engineer specializing in Firmware development, with nearly 10 years of experience in the field. I have extensive experience with the following microcontroller families: PIC16F/18F, STM32 and other ARM Cortex-based MCUs, ATmega, ATtiny, SAMD and in the recent years the ESP32 family (Classic, S2, S3, C3, C6 single and dual core) for IoT devices. 1️⃣My strongest skill is an in-depth knowledge of MCU internal architecture and operating principles: ⚡Memory organization, ⚡Instruction sets and execution, ⚡Device configuration, ⚡Watchdogs, ⚡Interrupt services (including multiple-interrupt handling), and ⚡Peripheral management. I’ve worked with virtually all standard peripherals found on modern MCUs 🚀 Precise Timer usage; 🚀 PWM drivers; 🚀 Capture-Compare units; 🚀 ADCs; DACs; and 🚀 Serial Communications (I²C, SPI, USART, I²S). Less common peripherals I’ve tackled include the STM32 🔹AES encryption accelerator; the PIC16F’s 🔹NCO and 🔹logic-gate features; the PIC18F 🔹USB module; and the ESP32’s 🔹PDM and 🔹I²S interfaces and various other specialized modules. ➡️This deep understanding of MCU internals lets me write high-quality code with very few bugs from the outset, and it makes debugging far faster in later development stages. 2️⃣Hardware integration I deliver seamless, efficient hardware integration for: 🔹Sensors (analog and digital: temperature, humidity, light, voltage) using SPI, I²C, 1-Wire, USART, etc. 🔹Input devices from simple buttons, keypads, potentiometers, and rotary encoders to touchpads and sliders. 🔹Output devices including LCDs (various sizes), OLEDs, addressable LEDs, 7-segment displays, touchscreens, and more. I go beyond plain text and primitives, 🎨crafting eye-catching UIs with attractive fonts, colors, images, and animations whenever possible. 3️⃣I can develop and maintain a complete embedded system firmware from start to finish, ensuring it’s easily maintainable by future engineers. When your embedded system is part of a larger ecosystem (e.g., IoT devices or desktop/mobile-controlled systems), I’ve implemented higher-level protocols like USB, Bluetooth/BLE, HTTP, and MQTT. I write clean, well documented firmware APIs that integrate effortlessly into any larger system. 4️⃣An invaluable skill I bring is the ability to emulate missing peripherals entirely in software avoiding the time, cost, and chaos of a board redesign. When hardware truly falls short, I step in to replicate its functionality in firmware, keeping development on schedule and often yielding more flexible, upgradable solutions. Of course, this isn’t a cure all: some features simply demand a hardware revision. 5️⃣When required, I code “close to the metal” in low-level C or even Assembly. I’ve worked on legacy chips (e.g., Intel 8051 and 6502 derivatives) where assembly-only firmware was essential. 6️⃣Circuit and PCB design Although my primary focus is firmware, I hold an electronics engineering degree and I am proficient at reading schematics. I collaborate smoothly with hardware designers and can propose elementary hardware solutions when needed. 7️⃣I’m a thorough researcher who always studies documentation carefully before drawing conclusions. While this can slow initial progress, it pays off with faster, more reliable development later on. 8️⃣Other skills and interests Windows desktop app development (WinForms) Web scraping (I’ve built sports results scrapers) Retro game development (I’ve completed a SNES game) You can find many of my projects: console utilities, ASCII-art games, web scrapers, and more on my GitHub page. Thanks for visiting my profile!

Specialized Discourse developer with 5+ years of experience in plugins, themes, migrations, SSO, and custom integrations. I help businesses build, customize, migrate, and maintain Discourse communities — from initial setup to advanced platform development. What I Can Help You With: Custom Discourse plugin development Theme & theme component development Advanced Discourse customizations Community platform migrations to Discourse SSO implementation API & third-party integrations AI integrations & automation Docker setup & deployment Performance optimization Upgrades & maintenance Community Migration Expertise: I can migrate virtually any community platform to Discourse while preserving users, posts, categories, permissions, and SEO structure. Migration experience includes Invision Community (IPB) XenForo phpBB vBulletin Vanilla Forums wpForo bbPress Flarum NodeBB Custom-built platforms I also handle URL redirect preservation Data cleanup & restructuring Plugin compatibility Theme recreation Post-migration optimization Open Source Contributions: Active contributor to the Discourse ecosystem with contributions to Discourse core Theme components User support Feature improvements Client Feedback: "I highly recommend Jahan to anyone facing challenges in transferring forums from IPB 4.x — your expertise and support are truly invaluable." "I've dealt with numerous developers over the years and Jahan was by far the best I've ever worked with. Completed the project quickly and at an excellent price. A+++++++++" "Communication was on equal terms and everything was super relaxed. Definitely recommendable!" If you need a dedicated Discourse specialist for development, migration, integrations, or long-term maintenance, I’d be happy to help.

Android Developer | 8+ Years | 1M+ Users Worldwide With 8+ years of Android development experience, I’ve designed, built, and optimized apps trusted by over 1M users globally—including high-impact projects like Getaround and HyreCar. I specialize in writing clean, maintainable code and delivering scalable, high-performance applications with seamless user experiences. As a Top-Rated Plus Freelancer on Upwork, I’ve earned $20,000+ with a 100% Job Success Score, a testament to my reliability, quality, and client satisfaction. Whether you need a new app from scratch or want to enhance an existing one, I ensure performance, scalability, and user delight. 🛠️ Core Skills Languages & Architecture: Kotlin, Java, MVVM, Clean Architecture UI/UX & Interaction: Jetpack Compose, Navigation, Motion Layout, Material Design, Custom Views, Accessibility APIs & Communication: REST, GraphQL, Retrofit, Coroutines, RxJava, Socket.IO Firebase & Cloud: FCM, Analytics, Crashlytics, Remote Config App Publishing & Payments: Google Play Console, In-app Purchases, Stripe, Payment Gateways DevOps & Tooling: Git, CI/CD (GitLab), Docker, Fastlane Advanced Features: Hilt/Dagger, Location Services, Multi-language Support, Offline Handling, Performance Optimization, PDF/Excel Generation 🌍 Industry Experience 🚗 Car Sharing & Rentals: Getaround (1M+ users), HyreCar (500K+ users) 🩺 Healthcare & Wellness: Medicine Reminder, Alzheimer’s Detection, BMI Calculators 🛍️ E-commerce & Marketplaces: Sozer Jewelry, Weat Local Marketplace 🎙️ Media & Streaming: Silvers Radio, Streaming Radio Apps 🏋️ Fitness & Lifestyle: Custom Workouts, Freight Booking (FreightPrint) 🚀 Key Achievements ✔ Integrated advanced SDKs: Stripe (Payments), Mitek (ID Verification), Sendbird (Messaging), Instabug (Bug Reporting) ✔ Automated builds & releases with CI/CD pipelines in GitLab + Firebase distribution 💡 Why Work With Me? 🔹 Strong problem-solving skills – quick and efficient issue resolution 🔹 Proactive communication – clear updates, no guesswork 🔹 Clean code advocate – maintainability & scalability first 🔹 User-first mindset – intuitive, engaging, and accessible apps 🔹 Continuous learner – always up to date with the latest Android trends 📩 Let’s build your next Android app—scalable, performant, and user-friendly.