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If you need a solid desktop application, a custom scripting tool to automate your workflow, or someone to rescue a C/C++ or Python project with messy code — you’re in the right place. I’m a software developer specializing in Python and C/C++. Currently studying Information Systems and Technologies, I combine academic engineering principles with real, hands-on problem-solving. My main focus is local software development, system-level scripting, and pure automation. I don't just write code; I make sure it’s fast, memory-optimized, and reliable. Here is what I can do for you: • Desktop Applications: Need a sleek GUI app or a lightweight command-line tool? I develop cross-platform desktop software using Python (PyQt, Tkinter) for user-friendly interfaces, or high-performance C/C++ when execution speed and system resources are critical. • Custom Scripting & Automation: If you are doing repetitive tasks on your computer, let me automate them. I write custom Python and OS-level scripts for file processing, data manipulation, system tasks, and workflow automation. • Fixing & Optimizing Existing Code: Let's face it — updating old code can be a headache. I actually enjoy diving into legacy or messy codebases, finding bugs, refactoring them for better performance, and adding new features to your current Python or C/C++ programs. My Toolkit: - Languages: Python, C, C++ - Scripting & Automation: OS automation, File I/O, Data processing - Desktop & GUI: PyQt, Tkinter, CustomTkinter, CLI tools - Version Control & OS: Git, GitHub, Windows, Linux I value clear communication, clean architecture, and strict deadlines. Drop me a message, tell me about your project, and let’s build something great!

Senior .NET developer with 25+ years of hands-on experience working on real production systems. I help companies stabilize, modernize, and extend desktop and legacy .NET applications, taking ownership of existing codebases and delivering clean, maintainable solutions that work reliably long-term. Most of my work involves improving existing Windows desktop applications rather than building throwaway prototypes. I regularly take over mature or poorly documented systems, identify structural and stability issues, and extend functionality without disrupting production workflows. Clients usually come to me when a system is business-critical and needs careful, senior-level handling. My core expertise is in Windows desktop development using C#, WPF, WinForms, and the .NET Framework. I also have extensive experience supporting and modernizing legacy systems built with VB.NET, VBA, C++, and Delphi, including Office automation, custom installers, file system integration, and data-processing tools. For modernization and supporting services, I work with .NET Core, ASP.NET, Razor Pages, and REST APIs, which allows me to evolve legacy desktop systems, build internal web tools, or deliver complete end-to-end solutions when needed. I follow proven architectural practices such as MVVM, layered design, version control with Git, and predictable deployment processes. I’ve completed 120+ projects and 37,000+ hours on Upwork, working primarily on long-term and technically demanding systems where reliability, clarity, and ownership matter more than quick fixes. If you’re looking for a dependable senior .NET developer who can take responsibility for an existing system or build a stable desktop application from scratch, I’d be happy to discuss your project.

I'm a UI UX designer with 12+ years of experience in UX & UI Design, helping companies build intuitive, engaging, and high-performing digital products ⭐️⭐️⭐️⭐️⭐️ ""The final result went beyond our expectations. The user interface is both intuitive and visually striking, clearly reflecting their attention to detail and design expertise. Vlad was responsive to feedback and quick with revisions, making sure the end product matched our vision exactly." 🎯 What I bring to your product as a UI UX Designer UIUX designer: ✔️ Over 12 years of commercial UI UX Design experience, web design, and mobile app design ✔️ A results-focused user experience design: as a UI UX Designer, I create user experience strategies that boost usability and drive user engagement, leading to conversion increases of up to 150% for previous clients. ✔️ As a UI UX designer, I design clear user flows that guide users effortlessly through websites and applications. ✔️ As a UI UX Designer, I develop detailed wireframing to map out user journeys and interface structure. My Prototyping expertise allows me to test and refine design concepts before implementation. I’ve delivered 5,000+ wireframes and over 150 prototypes, helping streamline project workflows and reduce the need for costly revisions. ✔️ As a UI/UX Designer, I prioritize user experience design, ensuring that every interaction is intuitive and seamless. My approach to user interface design focuses on creating clean, and accessible experience ✔️ As a graphic designer, I create UI graphics, icons, and branding assets using Adobe Illustrator. As a UIUX Designer, I use Figma for high-fidelity wireframes, interactive prototypes, and user interfaces that support seamless team collaboration. I also use Adobe Photoshop for web and mobile visuals, and Adobe XD to build interactive prototypes and validate user flows before development. ✔️ Web & Mobile UI design: As a UI&UX Designer UI & UX designer, I focus on mobile app design, web design, creating an intuitive user interface design that increased user engagement by 40%. My mobile UI design ensures a seamless user interface with a consistent look and feel across both iOS and Android. ✔️ With deep expertise in WordPress and web design, I design and develop fully customized react and ecommerce websites. As a UI UX designer, I prioritize a web design that is visually appealing and highly functional. I’ve crafted and optimized 50+ websites, focusing on intuitive navigation and layouts that drive conversions. ✔️ I have expertise in GUI Design and mobile app design, ensuring interfaces are user-friendly and engaging. ✔️ I'm a UI & UX Designer with extensive skills in Graphic design. I create brand-aligned digital experiences, provide logo design services, and create a strong visual identity. ✔️ As a UX/UI designer, I specialise in Figma design and mobile app design ✔️ I've got deep experience in UX & UI designer 📊 My Achievements in Numbers: 🔶 UI UX Designer for a Logistics SaaS application built on React: ▪ Improved pharmacy order processing efficiency by 200%. ▪ Reduced human error in order fulfillment by 50% through enhanced user interface design ▪ Accelerated checkout process by 30%, minimizing customer drop-offs. ▪ Cut manual work by 70%, streamlining workflows and boosting productivity. 🔶 UI UX Designer for a Furniture ecommerce website: ▪ Achieved 15% increase in revenue through UX improvements. ▪ Reduced cart abandonment by 30% with a more intuitive UI redesign. 🔶 UI UX Designer for a Health Mobile App: ▪ 2x user retention by redesigning the mobile app design ▪ 3x onboarding speed through streamlined user flow and interactive prototyping Why should you hire me as a UI UX Designer? ▪ 12+ years of experience in UX & UI, Web Design, and Mobile App Design. ▪ 200+ successful projects across a wide range of industries, including ▪ 100+ happy clients who have seen tangible business growth. ▪ Expert in Figma, Adobe XD, Adobe Illustrator, WordPress, React, ecommerce ▪ Delivered high-impact prototypes in record time for urgent product launches and investor demos. ▪ Designed cross-platform experiences for web, mobile (iOS & Android), and desktop applications, ensuring visual and functional consistency. ▪ UI UX designer shopify, UI UX designer saas figma, UI UX designer ai, UI UX designer crypto game ui ux designer ▪ 200+ projects - from enterprise SaaS dashboards to high-converting e-commerce stores. ▪ 5000+ wireframes & 150+ prototypes created to streamline development and reduce costly revisions. ▪ 20+ lectures and webinars conducted for junior and mid-level UI/UX designers ▪ 30+ design awards and professional certificates I've earned over the last years ▪ 90+ web development projects in collaboration with a web developer and interior designer Looking for a expert UI/UX Designer UI UX Designer UIUX designer UXUI designer who can take your product to the next level and drive business growth? Let’s connect! ☎️

✔ IoT Solution Leader | Leading a team of 220+ engineers ✔ 11+ Years in connected products | End-to-end IoT development ✔ Hardware + Firmware + Cloud Expertise Drop me a message with “DISCOVERY” - we’ll run a free discovery session and turn your idea into a clear architecture, timeline, and execution roadmap while avoiding costly mistakes early on. I lead a 220+ engineer team specializing in end-to-end IoT development – from early discovery and architecture to prototyping, production preparation, and long-term product evolution. Over the last 11+ years, I’ve been involved in building connected solutions that combine embedded systems, electronics, firmware, cloud platforms, and user apps (web, mobile, desktop). My role is focused on bridging business goals with engineering reality: helping teams validate ideas, select the right architecture, reduce technical risks, and build products that can successfully move from prototype to production. Core expertise: • IoT system architecture Designing complete connected ecosystems: devices, communication layers, cloud infrastructure, data flows, APIs, and user applications. • Embedded systems & firmware MCU/MPU-based development, RTOS, embedded Linux, device drivers, hardware communication protocols, low-power optimization, OTA updates. • Hardware development & prototyping Electronics design, schematics, PCB development, hardware bring-up, testing, validation, and preparation for mass production. • Connectivity & communication BLE, Wi-Fi, LoRaWAN, LTE/cellular, MQTT, sensor integration, and reliable device-to-cloud communication. • IoT cloud platforms AWS IoT, device management, telemetry pipelines, real-time monitoring, analytics, and scalable backend architectures. • Connected applications Web dashboards, mobile apps, desktop applications, admin portals, device management platforms, and third-party integrations. Typical IoT products I work with: • Industrial IoT & Industry 4.0 Connected machinery, predictive maintenance, industrial automation, sensor networks, and remote monitoring. • Smart Home & Building Automation Connected devices, automation platforms, energy management, and intelligent control systems. • Healthcare & Wearables Connected medical devices, monitoring solutions, wearable ecosystems, and compliance-focused development. • Energy & Infrastructure Smart metering, energy monitoring, telemetry systems, and remote control solutions. • Location-based products GPS tracking, asset tracking, fleet monitoring, and safety-focused connected devices. • Robotics & Drones UAV/UGV/UAS platforms, telemetry, control systems, and autonomous solutions. Selected project experience: • GPS tracking ecosystem Built a connected solution combining hardware devices, firmware, cloud infrastructure, mobile applications, and management dashboards for real-time tracking and alerts. • Wearable safety platform Developed an IoT wearable ecosystem with embedded software, wireless connectivity, cloud services, and user-facing applications. • Industrial monitoring solution Created a sensor-based platform for collecting operational data, processing telemetry, and providing actionable insights through dashboards. Why clients work with me: • Strong industrial and commercial product development experience I work with complex products where reliability, scalability, security, and real-world constraints matter. • Ability to handle both hardware and software challenges IoT success depends on how all system components work together - not isolated development tasks. • Clear communication and structured development process Transparent milestones, technical documentation, predictable execution, and clear ownership at every stage. • Focus on practical solutions I help teams avoid unnecessary complexity and choose architectures that fit actual product goals. • Long-term support mindset Project scope for reference: Phase 01 – Definition & Architecture: $15k–$25k Discovery, requirements analysis, system architecture, technology selection, and roadmap creation. Phase 02 – Prototype & Validation: $35k–$120k Hardware prototypes, firmware, cloud infrastructure, applications, testing, and product validation. Phase 03 – Production Readiness: $60k–$250k+ Production optimization, manufacturing support, certification preparation, scalability improvements, and deployment. My approach: I don’t start with coding. I start by understanding the product vision, business goals, technical constraints, and future scaling requirements. The goal is to create IoT systems that work reliably in real-world conditions, avoid expensive redesigns, and provide a strong foundation for future growth. If you’re building a connected product involving hardware, firmware, cloud, or device management - feel free to share your idea. I'm ready to help evaluate the technical approach and identify the most practical path forward. Worth a chat?

🟢 𝐀𝐕𝐀𝐈𝐋𝐀𝐁𝐋𝐄 NOW 👋 Hi there, I'm Artem! Need a developer to build a SaaS, MVP, or support a legacy system? I'm your full stack developer expert. With 15+ years as a Senior .NET Full Stack Developer, I plan, architect, and deliver high-performance applications that scale. Through my agency CodeLuxSolution and direct Upwork engagements, I've completed 66+ projects globally, transforming outdated systems into modern, blazor-powered solutions that drive user adoption and slash operational costs. ═══════════════════════════════════════════════════════════ 🏆 Why Our ASP.NET Core and .NET Developer Solutions Stand Out ⭐ 15+ years as a Senior .NET Full Stack Developer and Desktop Application specialist ⭐ 66+ custom projects delivered: 36 on Upwork, 30+ through enterprise contracts ⭐ Top Rated on Upwork with 100% Job Success Score ⭐ Leading projects for USA educational platforms serving 250k+ users after regulatory updates ⭐ Enterprise SaaS platforms in management and analytics spanning 20+ person teams ⭐ Desktop application migrations from WinForms to Blazor Server reducing deployment cycles to 1 second ⭐ ASP.NET WebForms to .NET Core migrations accelerating page load times by 100x (30s down to 0.5s) ⭐ High-load IoT systems optimized from 3 servers down to 1 server, cutting infrastructure costs 66% ⭐ ASP.NET MVC to RazorPages performance gains delivering 3x faster rendering ⭐ Blazor developer expertise enabling remote-first access and real-time data sync across 1000+ concurrent users ⭐ .NET Core microservices reducing deployment risk from multi-day windows to single-second updates ═══════════════════════════════════════════════════════════ 🚀 Services | ASP.NET Core and .NET Developer Expertise ▶ Enterprise SaaS Architecture - Scalable, Management and Analytics Focused ► ASP.NET Core microservices for high-load systems processing thousands of IoT requests per second ► .NET Core backend serving 250k+ users on educational platforms with zero downtime ► Blazor Server and Blazor WASM applications enabling remote access and cross-user data synchronization ► SQL Server optimization and EF Core entity mapping for complex domain logic ► Developer-led database scaling strategies reducing server footprint by 66% ▶ Legacy System Modernization - WebForms to Modern .NET ► ASP.NET WebForms to .NET Core rewrites accelerating page loads from 30s to 0.5s ► WinForms Desktop Application refactoring into Blazor Server reducing update cycles to 1 second ► ASP.NET MVC to RazorPages migration delivering 3x performance improvement ► Eliminate version conflicts across 1000+ users with web-based Blazor deployment ► .NET Framework to .NET Core infrastructure consolidation cutting infrastructure needs from 3 servers to 1 ▶ Custom Desktop Applications - WinForms and Windows Services ► WinForms application development for enterprise productivity tools ► Windows Services for background processing and system integration ► Desktop application architecture supporting offline and connected scenarios ▶ SaaS Platform Development - Full Stack from Concept to Scale ► ASP.NET Core APIs powering management and analytics SaaS dashboards ► Blazor components for real-time reporting and user collaboration ► .NET developer expertise in multi-tenant architecture and data isolation ► High-performance SaaS solutions serving thousands of concurrent users ▶ Specialized Modernization Services ► WinForms to Blazor Server conversion enabling work-from-anywhere deployment ► ASP.NET WebForms to .NET Core rewrites for systems handling high-load IoT data ► MetaTrader indicator development and NinjaTrader platform expertise ► Educational platform scaling from pilot to 250k+ user systems ► Fire safety and emergency management SaaS currently in development ═══════════════════════════════════════════════════════════ ⚙️ Workflow, Tech-Stack and Extra Value 🔍 Discovery and Requirements Analysis ► Understanding legacy system pain points and defining success metrics for migration projects ► Competitive analysis and user experience mapping for SaaS platforms 🏗️ Architecture and Design ► Mapping WinForms components to Blazor Server architecture ► Designing ASP.NET Core microservices for SaaS platforms ► Planning infrastructure consolidation strategies for high-load systems ► .NET developer best practices for scalability and maintainability 💻 Development and Integration ► C# as primary language chosen over Python for development velocity and C++ for performance parity ► ASP.NET Core | Blazor Server | Blazor WASM | RazorPages | .NET Framework legacy ► HTML5 | CSS | JavaScript | SQL Server | EF Core with advanced querying ► WinForms for Desktop applications | Windows Services | API development ► Integration with existing enterprise systems and third-party APIs ⚡ Performance Optimization ► ASP.NET WebForms to .NET Core refactoring reducing page loa

I work best with founders and CTOs who want a senior engineer who can own the technical path, challenge weak assumptions, and ship production software without constant supervision. I reply quickly and keep you updated. I raise points early rather than surprise you later. You can always reach me. I deliver on my commitments. 🤝 How I work I use a modern AI development workflow that leverages advanced tools for code generation, refactoring, testing, and reviews. My approach is efficient without sacrificing quality. I rely on my experience and judgment, while automation handles repetitive tasks. ✔ No surprises – We get clear on the scope and what success looks like before a single line of code is written. ✔ Open communication – You’ll always know where things stand, with regular updates and early warnings if anything pops up. ✔ Easy to work with – Fast replies, direct answers, and no chasing me down. I make collaboration smooth. ✔ Modern workflow – I use the latest tools to move quickly and deliver quality, freeing up time to focus on what matters. ✔ Every change is reviewed – Nothing hits production without real testing and a second set of eyes. ✔ Clean handoffs – I write code & tests that are easy to follow, document the details, and make sure the next engineer can jump in without headaches. As a Full-Stack Engineer, I build SaaS platforms, B2B products, dashboards, admin panels, internal tools, desktop applications, and web apps. My products are reliable in production and built for growth, covering frontend, backend, and infrastructure. If your MVP needs to ship, your prototype is stuck, or your codebase is slowing the team, I take the product from architecture through launch. I own the build, the trade-offs, and the messy production details that determine whether software works. 🚀 What I do as a Full-Stack Engineer ✔ Full-stack web app development (React, Next.js, Node.js, NestJS) ✔ SaaS platform & B2B product development ✔ Electron desktop apps (macOS & Windows, code-signed & notarized) ✔ Chrome extension development (Manifest V3) ✔ Backend & API development (Node.js, Python, PostgreSQL, GraphQL, REST) ✔ MVP development & zero-to-one product builds ✔ AI feature integration (LLMs shipped to real users) ✔ AI apps launching ✔ Architecture, code review & technical strategy As a founding engineer, I work across the full product lifecycle: Architecture → Data Modeling → API Design & Backend implementation → Frontend Build → Desktop / Extension Packaging → Testing → CI/CD → Deployment & Scaling ⭐ Experience 10+ years building production software, 20+ products shipped, Top Rated Plus · 100% Job Success. I've worked as a full-stack engineer for SaaS startups, enterprise B2B platforms, and product teams in fintech, healthtech, logistics, and internal tooling. I own end-to-end delivery, not just closed tickets. 🧩 Full-Stack Engineering Services • SaaS Web App Development • Full-Stack Product Development (React + Node.js) • Electron Desktop App Development (windows, linux, mac) • Chrome Extension Development • Backend & API Development • Dashboard & Admin Panel Development • MVP Development for Startups • AI Feature Integration • Architecture & Technical Strategy • Code Review & Refactoring ⚙️ Stack React · Angular · Next.js · TypeScript · Node.js · NestJS · Python · PostgreSQL · GraphQL · REST · Electron · Chrome Extensions · AWS · Docker · CI/CD · AI-assisted development (Claude Code, Codex) Why clients hire me as a Full-Stack Developer: • 10+ years of full-stack engineering • Deep expertise in React/Next.js, Node.js, and Electron • Owns architecture through delivery - no hand-holding • Gives honest estimates and flags risks early • Cares about what ships and how they hold up If you want a founding full-stack engineer who can own your SaaS, web, or desktop product from architecture through launch, send me what you're building. I'll reply within 1 hour with honest, actionable technical feedback. Full-Stack Development · Founding Engineer · React Developer · Next.js · Node.js Developer · NestJS · Python · TypeScript · PostgreSQL · GraphQL · REST API · MVP Development · SaaS Development · Electron.js · Desktop Application Development · Cross-Platform Applications · Code Signing · Apple Notarization · Chrome Extension · AI Integration · AWS · Docker · CI/CD · Angular · API · Frontend Developer