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I am a game developer specializing in Godot, Roblox, and Unreal Engine with years of experience collaborating with indie studios, content creators, and startups across global markets. My focus is on transforming concepts into polished, performant, and engaging games from rapid prototypes to full scale releases on mobile, PC, and web. · GDScript, C#, 2D/3D · Luau, Roblox Studio, Roact · Unreal Engie, UnrealScript

I have over 8 years of experience in the industrial automation. I have taken part in large project design and implementation (Food industry, Machine industry, water treatment, chemical processes) of the base of hardware and software of such producers as SIEMENS, Schneider-Electric, Rockwell Automation, Codesys-platform Software: Unity Pro, SoMachine, Codesys, Step 7, Tia Portal, RSLogic 500, Studio 5000, Connected Components Workench ch etc. SCADA, HMI: Vijeo Citect, Vijeo Designer, WinCC, Indusoft, Vijeo Designer etc. Configuration and Commissioning Soft Starters and VFDs.

I am a Hardware Engineer with 10+ years of experience in PCB Design, Microcontroller Programming, and Embedded Systems development. I specialize in building robust Hardware solutions using ESP32, STM32, Arduino, and Raspberry Pi platforms. From initial Schematic capture in Altium or KiCad to final production-ready devices, I deliver high-performance electronics that work in the field. Highlights: - 100% Client success score - 95% first-pass PCB success rate across 100+ boards - Reduced BOM cost by 10–20% per unit through component optimization - Designed and reviewed 100+ PCBs across IoT, industrial, and automotive sectors - Firmware optimized on battery-powered ESP32 devices 📍 Core Services: Professional PCB Design & Schematic Capture - High-quality PCB Design delivery using Altium and KiCad with 100+ commercial products launched globally. - Schematic development and PCB Design for high-density multilayer boards (up to 16+ layers, microvias, HDI). - Hardware Design focusing on DFM/DFA, achieving 98% First-Time-Right fabrication with zero board respins. - Expertise as a PCB Designer in Altium Designer, KiCad PCB, and EasyEDA with 10,000+ hours of hands-on layout experience. - PCB Design for PCB Audio, RF (up to 6+ GHz), and high-speed digital interfaces (DDR4/PCIe Gen4 length matching). - Professional PCB Design and Circuit Designer services for Electronics projects, cutting time-to-market by 30% via IPC-Class 3 compliance. Expert Microcontroller Programming & Firmware: - Expert Microcontroller Programming for diverse industrial and consumer platforms with 99.9% uptime in production. - Microcontroller Programming for ESP32, STM32, Arduino, and Raspberry Pi, covering 200+ deployed nodes. - Embedded Systems development using Embedded C and C language, optimizing memory footprint by up to 40%. - Custom Firmware and Embedded Software for Embedded Systems IoT applications with MISRA C compliance and AES-256 security. - Advanced Microcontroller Programming for ESP32 Firmware, STM32 HAL, and Arduino Programmer tasks with FreeRTOS multi-threading. - Embedded Systems and Microcontroller Programming for Robotics and Python-based logic, accelerating sensor polling rates by 3x. Strategic Leadership & IoT Solutions: - I lead ARTAXE Electronics, a hardware engineering team. As CEO and Electronics Engineer, I ensure every Embedded Systems project is scalable and commercially viable, managing $500K+ in R&D budgets. - IoT architecture for ESP32 and Raspberry Pi systems, supporting 10k+ active concurrent devices in the cloud. - Embedded Systems Engineer services for Embedded Systems with long-range connectivity (LoRaWAN/LTE-M up to 15km range). - Integration of Schematic designs with Antenna Design and PCB Firmware, improving signal integrity and wireless range by 25-30%. - Deployment of Embedded Systems for AgTech (PivotHawk) and industrial monitoring across 50,000+ hectares / 100+ industrial sites. Mechanical Design & Enclosure Development - Bridging the gap between an Electrical Engineer and a Mechanical Engineer, ensuring 0mm clearance errors via precise ECAD-MCAD co-design. - Mechanical Design using SolidWorks, AutoCAD, and CAD tools with 0.05mm tolerance precision. - Enclosure Design and Industrial Design for IP-rated devices (up to IP67/IP68 water & dustproof standards). - Professional Mechanical Design Engineer and Enclosure Designer support, optimizing parts for injection molding to cut tooling costs by 20%. - Mechanical Designer services for custom Hardware housing, validated through 50+ rapid prototypes (3D-printed ASA/SLA). Why Partner With Me❓ ✅ Altium & KiCad Mastery: Expertise in Altium for high-end professional projects and KiCad for open-source flexibility. The workflow in Altium ensures precision, while KiCad provides cost-efficiency. ✅ Prototyping & Production: I don't just create a Schematic; I deliver a working device. From Arduino prototypes to STM32 production units. ✅ Comprehensive Hardware Support: Every Hardware project includes a thorough Schematic review and PCB Design Circuit Design validation. ✅ Reliable Microcontroller Programming: Providing Embedded Engineer grade code for ESP32, STM32, and Raspberry Pi nodes. 💡 Technical Toolkit: ✅ Software: Altium, KiCad, EagleCAD, EasyEDA, SolidWorks, AutoCAD. ✅ Platforms: ESP32, STM32, Arduino, Raspberry Pi, nRF52, i.MX8. ✅ Focus: Embedded Systems, IoT, PCB Design, Microcontroller Programming. Ready to bring your hardware vision to life❓ From the initial Schematic stage to the final PCB Design and production support, I am dedicated to your project's success. Whether you need a simple prototype or a complex Hardware system, let's discuss how my expertise can drive your innovation forward. ❗ Click the "Message" or "Invite" button to start a conversation about your project today❗

🤝 I can improve your thoughts and create for you expert advisors (EAs, bots), indicators and scripts for the MetaTrader 4, MetaTrader 5 using MQL4, MQL5. Automating your strategies, for more convenient trading, and for testing your trading strategies. Developing automated trading systems, custom technical indicators, and trading scripts for trading and analyzing Forex, and various financial markets. This saves you time and allows you to make your trade more profitable. Using my experience in trading and programming (since 2014), I help other traders implement and test their trading ideas. Also, I have experience trading Forex since 2011, which allows me to better understand the needs of traders and provide a better service. Customer services I offer: - MQL4 & MQL5 Programming; - source code providing; - clean coding (self-explanatory); - reliable programming; - quick turnaround; - long support; - if required, I will sign NDA. Thanks to my knowledge and experience, as well as the fact that I like doing what I do – you can entrust me with your projects and I will always complete your project perfectly and on time! If you have any questions – help and support your product in the future. Together we will make your trade profitable. I work and help people who are just starting trading, beginners and professional traders, investment advisors, and portfolio managers. 🤝 I am always glad to have long-term partnerships.

Hi, my name is Arsen. I’m a Senior C++ and Python developer with 5+ years of experience building software for Linux, Windows, and embedded systems. I focus on clean, efficient, and reliable solutions for low level, backend, and performance critical tasks. What I bring to projects: • C/C++ development: STL, Boost, Boost ASIO, Qt, WinAPI, OCCI, V8, POSIX, multithreading • Python development: automation tools, data pipelines, backend logic, Django • Database engineering: Oracle, SQLite, MongoDB, data export tools, batch processing, custom type conversion • Linux systems programming: networking utilities, driver level interaction, Linux kernel headers, OpenWRT, desktop and CLI tools • Wireless and low level networking: Generic Netlink, nl80211, libnl/libmnl, Wi Fi scanning tools, protocol and frame parsing • Reliability and performance: profiling, transactional workflows, data integrity focused design, Dockerized builds, CI/CD with TeamCity • Cross platform delivery: Linux and Windows applications, Make, CMake, Conan, Git/SVN, GDB, Valgrind, Doxygen, Bash I have built tools ranging from high performance Wi Fi scanners in C that interact directly with the Linux wireless stack, to cross platform C++ command line utilities that export Oracle data into SQLite with transactional safety and performance profiling. I am comfortable working close to the system, optimizing throughput, handling large datasets, and designing software that is maintainable and stable in production. Clients usually trust me with complex backend, systems, and infrastructure related tasks where performance, correctness, and long term reliability matter. If you are looking for a developer who can work on C++, Python, Linux internals, networking, or data heavy applications, let’s talk. 🙂

Full stack developer walks into a bar. The bartender asks, "What'll it be?" They say, "I'll take one of everything — and I'll build the menu while I wait." 🍺 🚀 5+ years of experience as a full stack developer React Node specialist, delivering 50+ robust and secure web applications for scaling a startup, shipping an MVP, or building a production-ready SaaS platform from early-stage concept through enterprise deployment. ✅Over 5 years building real-world web applications ✅Proven track record with 100% Job Success Score ✅Consistently earning 5⚝ client feedback ✅100% clean, scalable, production-ready code As a full stack developer and backend developer, I bring 10,000+ hours of proficiency in JavaScript, React TypeScript, and backend Node.js architecture. My passion for clean code and strong problem-solving skills help my team deliver 200,000+ hours on Upwork. I'm proactive, communicative, and able to take ownership of features independently, ready to become an ideal strategic partner for clients seeking a 100% full-time engineering role. 🏅As a full stack developer React Node, I implemented over 50 successful cutting-edge solutions using JavaScript (ES6+) with React TypeScript, and earned about $30K+ on Upwork. 🏅As a front end developer React with 10,000+ hours of strong experience, I built 50+ modern interfaces using React TypeScript, Next.js, Tailwind CSS, Material UI, Angular, Vue.js, and Redux Toolkit. 🏅ReactJS TypeScript and React Native TypeScript extend my delivery across web and mobile app developer contexts for over 3 years. 🏅I delivered 100% responsive design, Lottie animations, PWA implementations, and performance optimization for 30+ apps. 🏅As a React developer, I write clean code standards with 90%+ test coverage using Jest and Cypress QA frameworks. 🏅As a backend developer, I architect scalable backend Node.js services using Node.js, NestJS, and Express.js for my 3 Upwork projects. 🏅As a Python full stack developer, I bring additional backend Node.js versatility across data processing pipelines for about 1000 hours on Upwork. 🏅I handled API development, REST API and GraphQL integrations, role-based access control, CI/CD pipelines, and implemented secure authentication patterns for 20+ projects. 🏅As a full stack developer React Node, for over 5 years I manage environment across AWS and Google Cloud Platform (GCP) with Docker containerization. 🏅As a MERN stack specialist, for 50+ solutions I delivered comprehensive full stack developer React Firebase, full stack developer Supabase React, and full stack web developer solutions across PostgreSQL, MongoDB, and MySQL databases. 🏅My 3+ years of proven experience as a full stack developer AI includes OpenAI API integration for intelligent feature development. PORTFOLIO HIGHLIGHTS 🏆As a full stack developer AI and full stack developer React, I built an AI-powered SaaS growth suite for eCommerce marketplace sellers, integrating OpenAI API for customer segmentation and analytics dashboard. Stack included React TypeScript, NestJS, PostgreSQL, AWS, Docker, CI/CD. This full stack developer Shopify-adjacent marketplace platform reduced seller ad management time by 47 %. 🏆As a full stack developer React Node and backend developer, I delivered a telemedicine platform for EU clinics covering remote consultations, appointment scheduling, and medical records. Stack: React, GraphQL, WebSockets, Express.js, MongoDB, Docker. Usability improvements reduced patient onboarding by 54 %. 🏆As a full stack web developer and backend developer, I built an eCommerce platform for digital products with payment processing integration via Stripe and PayPal. Stack: React, Node.js, MySQL, Swagger. Payment completion rates improved by 38 %. 🏆As a full stack developer Laravel and full stack Laravel contributor, I've supported a PHP-based backend system requiring custom code, and feature enhancements alongside JavaScript stack. 🏆As a game developer TypeScript React practitioner, I've implemented interactive dashboard visualizations and engagement mechanics applicable to betting, gambing, and 4 gamified wellness platforms. My key responsibilities as a full stack developer and web developer include building complex features, developing backend Node.js services, working closely with a UX designer and product teams, implementing API integrations, building dashboards, and improving security. As a WordPress developer with CMS integration experience, I can also handle WordPress custom code. I'm looking for startups and enterprise teams seeking a talented, experienced full stack developer for a long-term relationship and ongoing SaaS platform development, Proof-of-Concept (PoC) delivery, or MVP launches. Whether you need a mobile app developer, React developer, or a full stack developer React Node engineer fulltime, I bring the architectural thinking, excellent communication skills, and ability to troubleshoot complex platforms to level them up! 🚀