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Daria B.
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Daria B.

Full Stack Developer | AI Developer | AI Integrations | AI Automation

🏆 I'm a Top-Rated .NET & Full Stack Developer with 15+ years of experience. I've delivered 60+ apps (US/UK/EU) | -45% API latency, +70% faster deploys, 3 legacy monoliths modernized | 100% Job Success, $60K+ earned on Upwork As a .NET Developer, I migrated 3 legacy monoliths to .NET Core microservices, +70% deployment speed 💥 Recent win — as a Full Stack Developer and C# Developer, I rebuilt a logistics platform using .NET Core, Angular and MySQL, cutting order processing time by 55% and lifting client retention by 22%. 🟢 Most business platforms are slow, hard to scale and expensive to maintain. With 8+ years as a .NET Developer, C# Developer and Full Stack Developer, I architect scalable web developer solutions on .NET, Angular, React and Python stacks that turn technical debt into growth 🟢 📩 Send me your project brief — I'll reply with a free technical review within a few hours, covering architecture, performance and security. ⭐️⭐️⭐️⭐️⭐️ "She's an outstanding .NET Developer and Full Stack Developer. Reliable, communicative, and delivers clean, production-ready C# code every time." 🎯 WHY CLIENTS CHOOSE ME AS A FULL STACK DEVELOPER I'm a Full Stack Developer, .NET Developer and C# Developer with full-cycle ownership — from database architecture and API design to pixel-perfect frontends. As a C# Developer, I write clean, testable code following SOLID principles, and as a Full Stack Developer I make sure the entire product, not just one layer, actually works for your users. ✔️ .NET Core & C# — as a .NET Developer and C# Developer: scalable ASP.NET Core APIs, background services, .NET MAUI apps
✔️ Frontend — React, Angular, Vue.js, jQuery, built for speed and clean UX
✔️ Full Stack Development — as a Full Stack Developer, connecting .NET, Node.js and Python backends to JavaScript frontends
✔️ Web Developer Services — as a web developer, WordPress, Laravel and PHP sites alongside custom .NET apps
✔️ Database Architecture — MySQL, SQL Server, API Integration for data-heavy systems
✔️ Cloud & DevOps — Azure, AWS, Docker, CI/CD, supporting .net full stack developer and full stack developer react deployments 📊 RESULTS THAT SPEAK 🔶 Fintech Platform: as a .NET Developer and C# Developer, -60% transaction errors, 99.9% uptime via a full .NET Core rebuild
🔶 E-commerce Marketplace: as a Full Stack Developer, React + .NET Core APIs, +28% checkout conversion, 3x page load speed
🔶 Healthcare SaaS: as a senior .net developer, HIPAA-compliant rebuild, -40% manual admin work ⚙️ TECH STACK — WHAT I ACTUALLY BUILD ✔️ As a C# Developer, I build backend services and APIs in C#, .NET and .NET Core
✔️ As a .NET Developer, I build enterprise systems on .NET Framework, deploy cross-platform apps with .NET MAUI, and ship RESTful APIs with ASP.NET
✔️ As a Full Stack Developer, I build frontend interfaces in React, Angular, Vue.js and JavaScript, and add type safety with TypeScript
✔️ As a Full Stack Developer, I build backend logic in Node.js and Python, and CMS-driven sites in PHP, Laravel and WordPress
✔️ As a web developer, I build responsive layouts with HTML5, CSS 3, Bootstrap and jQuery
✔️ As a Full Stack Developer, I build and manage data layers in MySQL and SQL Server 💼 EVERY PROJECT AS A FULL STACK DEVELOPER INCLUDES ▪️ Clean, well-documented C# and .NET code with automated testing
▪️ Direct communication, just a senior C# Developer / .NET Developer working on your project
▪️ Ongoing support after launch as your long-term Full Stack Developer and .NET Developer partner 🏭 INDUSTRIES Fintech · Healthcare · E-commerce · Logistics · SaaS · Real Estate · EdTech 🔎 ALSO EXPERIENCED AS — EVERY ROLE, PROVEN TWICE ✔️ As a react developer, I build interactive dashboards for SaaS platforms. As a react developer, I also rebuild legacy UIs for speed and scale.
✔️ As a python developer, I build backend APIs and automation scripts. As a python developer, I also ship data-processing pipelines for reporting tools.
✔️ As a java developer, I build backend modules for enterprise systems. As a java developer, I also debug and refactor legacy Java codebases.
✔️ As a blockchain developer, I build and audit smart contracts. As a blockchain developer, I also integrate wallet and token logic into existing platforms.
✔️ As a mobile app developer, I build cross-platform releases for iOS and Android. As a mobile app developer, I also ship post-launch updates and bug fixes.
deployment pipelines.
 🚀 LOOKING FOR A RELIABLE FULL STACK DEVELOPER OR .NET DEVELOPER? 👉 Share your project details and I'll reply with a clear technical plan. Hire a proven .NET Developer, C# Developer and Full Stack Developer who ships secure, scalable, production-ready software — on time, every time. 📅 Last updated: 05.11.2026

🇺🇦Zaporozhye, Ukraine$35/hr100% JSS4.83 (13)Since Mar 2016
GlobeUpwork

Earnings and projects

MRR
$99

Last 6 months ÷ 6

World#135,121 / 412k
🇺🇦Country#4,926 / 14.3k
Revenue, last 30 days
$0

Last 6 months: $594

Total earnings
$69k

Billed in all: $69k

World#57,502 / 412k
🇺🇦Country#3,556 / 14.3k
Per project
$4.6k

$297 in the last 6 months

World#37,787 / 412k
🇺🇦Country#2,240 / 14.3k
Projects, last 6 months
2
100% fixed0% hourly
World#88,918 / 412k
🇺🇦Country#3,419 / 14.3k
Projects in all
15
27% fixed73% hourly
World#161,377 / 412k
🇺🇦Country#6,688 / 14.3k

Earnings, last 30 days

$69.1kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$68k$69k$70k$71kOct 8Oct 23Nov 7

Skill rankings: Top 21% in Bootstrap

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