As a Senior Rust Engineer, I can help you: - Build, test and deploy custom smart contracts for your needs in Ethereum, Polkadot, Solana and Cosmos blockchains. - Build tools/scripts for interacting and extracting useful data from blockchains (ERC20 tokens, NFT, etc.), building subgraphs, etc. - Build your full stack application in Rust, NodeJS, Python and React from scratch to production. - Build your customized blockchain with Polkadot's Substrate or Cosmos SDK - Design and build React applications - Debug and extend existing applications

I am an experienced full-stack developer and teaching assistant at the Faculty of Mathematics and Informatics (Bulgaria), with a strong background in building and delivering production-grade web applications. My work spans the full development lifecycle, from system design and database architecture to performance optimization and long-term maintainability. I specialize in designing robust, scalable database solutions, identifying and resolving performance bottlenecks, and debugging complex, real-world systems. With hands-on experience across multiple projects, I consistently focus on clean architecture, reliability, and pragmatic engineering decisions that scale with business needs. Beyond technical execution, I place a strong emphasis on clear, structured communication. I work closely with clients and stakeholders to ensure expectations are aligned, progress is transparent, and solutions deliver real value at every stage of development. As both a practitioner and an educator, I bring a balance of deep technical expertise, practical problem-solving, and the ability to explain complex concepts clearly, ensuring not only that systems work, but that they are understandable, maintainable, and built to last.

Welcome ⭐⭐⭐⭐⭐ TOP Rated Plus ⏱ Reply within 24 hours 24/7 💼 I'm a Full-Stack Developer from Bulgaria with over 3 years of experience in building applications from scratch using JavaScript / Typescript / Node / React / Angular / Nest / MongoDB / Express. Graduated with the honors student of Software University, Sofia, involved in leading and organizing students. I love programming, especially Web Development, solving problems and working with new and exciting technologies. I've been working on different types of projects so far in various domains such as CRM, ERP, Finance, Traveling, Fitness, Staffing Service, and E-commerce. Currently, I am working on two exciting 💗 projects: ✅ Open-Source Commerce Platform for On-Demand Economy and Digital Marketplaces ✅ Open-Source Business Management Platform (ERP/CRM/HRM) 🌟 You can check both projects under GitHub ⏩ github.com/ever-co 🔥 Tech Stack: Frontend: ✔ JavaScript ✔ HTML / CSS ✔ TypeScript ✔ Angular ✔ React ✔ Redux ✔ Next ✔ RxJs ✔ SASS ✔ TailwindCSS Backend: ✔ Node ✔ Nest ✔ Express ✔ Firebase Databases: ✔ MongoDB Additional Tech: ✔ Chrome Extention ✔ Git ✔ Unit Testing (Mocha, Chai) 📢 Currently working from ✅ Upwork EXPERT-VETTED (TOP 1%) Agency, but if you decide to hire me will work DIRECTLY with you, while our agency will only stay behind unless you need any other services, e.g. additional developers, designers, or an architect/CTO. 📈 Feel free to review our agency on Upwork (⏩ upwork.com/ag/ever): track record history, feedbacks, portfolios, and team. I can help you build your exciting product using good coding practices and building scalable and maintainable code!🏆 Glad to answer any questions, let's jump in a call, Best regards, Orfey | Software Development | Applications | App | Software Design | Design | UI | UX | Product Development | Product Design | Prototyping | Drafts | Mockups | Backlog | Idea | Mobile development | Mobile Apps | Single App | Server | Architecture | Roadmap | Scale | QA | Test | Data Analysis | Machine Learning | AI | Crypto | CMS | CRM | ERP | HRM | Ecommerce | SaaS | PaaS | DevOps | Data Base | WEB | Mobile | Adaptive | Responsive | Tablet | Desktop | Script | Code | Cloud | IoT | Agile | Scrum | Team | Agency | Serverless | Docker | Startup | Enterprise | MVP | GitHub | GitLab | Bitbucket | Behance | Figma | Native | Hybrid | Portal | Program | Timeline | Frontend | Backend | Full-Stack |

🚀 Multiple Startup experiences from day 1 🥇5+ years of UI/UX and development experience ⏰ Fastest response time 👋 Hey there! Every project requires unique approach. My goal is to design and build products that don't just work - they make an impact for your business. With vast experience in startup world, I've spent much time crafting, launching, and refining innovative products that get users hooked and businesses scaling fast. Whether you're a startup founder or looking to level up your existing product, I'm here to find solutions to your problems by delivering best possible results in no time. 𝗪𝗵𝘆 𝗜’𝗺 𝗮 𝗚𝗿𝗲𝗮𝘁 𝗙𝗶𝘁 𝗳𝗼𝗿 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 1. 🔥 Product Design That Converts
 I believe that users are the centre of any product - ”People ignore design that ignores people”. That’s why products I work on always deliver high conversion rates.
 2. 🎯 Startup-veteran
 I know what it takes to build products fast, and lean with fast iterations. But I also understand how to scale products, and develop for many years to come.
 3. ⛏️ Flexibility
 From concept to launch, I’ve built many products from scratch. In my professional career I came across many problems to solve. From building SaaS and dashboards to retails business and e-commerce. 
 4. 📡 Clear Communication & Fast Turnaround
 I am very communicative and prefer to talk through every important project decision with my client. There is no resting time for me, and I would be willing to reply to your messages even at night to make sure the project is delivered on time. 𝗠𝘆 𝗣𝗿𝗼𝗰𝗲𝘀𝘀: 𝗙𝗿𝗼𝗺 𝗜𝗱𝗲𝗮 𝘁𝗼 𝗥𝗲𝗹𝗲𝗮𝘀𝗲 I follow a structured and flexible process that is clear to my clients.
 1. Discovery & Strategy
 We’ll start by understanding your vision, audience, and goals.
 2. Design & Prototyping
 User-centric designs and prototypes created. Ensuring that client is satisfied.
 3. Build & Refine
 With constant feedback loops, I iterate and refine until we have a product that's polished, scalable, and ready to launch.
 4. Launch & Support
 Once your product is ready, I’ll assist with a smooth launch and be available for further support as needed. “To build a great product, you need to craft with both the artist’s brush and the engineer’s precision” Ready to take your product to the next level? Let’s build something great together! 💡

Core work: - eliminating wasted spend - lowering acquisition costs - improving ROAS - fixing campaign structure - scaling what works Recent results: - $420K+ managed across 3 accounts (Q4 2025 – Q1 2026) - Improved ROAS and reduced CPA across eCommerce and Lead Gen --- How I work: 1) Audit & Diagnosis - Deep audit using a custom-built monitoring system - Identify wasted spend and scaling opportunities - Provide a clear breakdown of performance insights - Clear actions: what to stop, fix, and scale 2) Strategy & Structure - Use audit findings to build the new strategy and account structure - Build scalable campaign architecture - Apply the right campaign structure based on the account plan: - Retargeting - Lookalikes - Broad targeting - Advantage+ / DPA 3) Optimization & Scaling - Continuous performance optimization - Systematic testing (audiences, structure, angles) - Scale based on validated data 4) Ongoing Management - Performance monitoring - Clear reporting with actionable insights - Strategy updates based on data --- I use a custom-built system to: - monitor performance efficiently - detect inefficiencies fast - identify scaling opportunities - support data-driven restructuring decisions --- Credentials: - 13+ years Meta Ads - 128 projects completed - Meta-Certified - $500K+ earned - Top 1% Expert-Vetted --- Agency-side experience: - Paragone - Rebel Marketing - Yellow Cake Media - Point2Web --- Experience across: - eCommerce (DTC, retail, and consumer brands) - Lead Generation (B2B and B2C service-based businesses) - SaaS & Apps (subscription products and user acquisition) --- If your campaigns are underperforming or stuck, I can identify why and outline the next steps. Message me and I’ll review your account and outline clear next steps. --- Client feedback: "Managed $250K+ monthly spend for 2 years. Highly skilled media buyer and a valuable asset to any team." "Absolutely fantastic experience! Deyan is a top-tier media buyer—strategic, responsive, and delivered outstanding results. Highly recommend and would gladly work with again!" "Working with Deyan was an excellent experience. They demonstrated deep expertise in Meta advertising, quickly understanding our goals and building campaigns that delivered strong results." "This is the second time I've used Deyan's service and can really recommend him! He is extremely professional and knows what he is doing!"

Your website has one job: turn the right visitors into clients. I build WordPress and Divi 5 websites for service businesses that need clarity, trust, and enquiries — not just another site that looks finished. Visual polish matters. Effects, plugins, and trends all have their place. But every choice should support the same goal: helping the right visitor take the next step. My work is focused on: • clear positioning and first-screen messaging • page structure built around how visitors decide • trust signals placed before the visitor is asked to act • clean, fast WordPress / Divi 5 implementation • mobile-first layouts that are easy to scan • simple editing setup so you are not locked into a developer forever I work mainly in WordPress, with Divi 5 as my strongest production stack. I started working with Divi 5 during its beta stage and spent the past year building a faster, cleaner, more controlled workflow around it. I can also work with Gutenberg and Elementor when they are the better fit, but Divi 5 is where I can deliver the strongest balance of speed, structure, visual control, and maintainability. Before web design, I spent decades building, running, and improving real businesses. That matters, because a website is not just a visual project. It is a business tool. It has to explain value, reduce doubt, guide decisions, and make the next step feel obvious. I can help if: • your current site looks finished but does not bring enough enquiries • you have already paid for a website and still feel it is not working • you are not sure whether you need a rebuild, redesign, or smaller strategic fix • you want a WordPress / Divi site that feels professional, clear, and built to convert I also work at the strategy level — conversion audits, structure, and UX direction. I will not push a full rebuild if a smaller fix makes more sense. Send me your link or a short message about your problem or plan. I will tell you honestly what I would do first.

I help companies deliver scalable software products that improve efficiency, reduce operational friction, and support growth. I’m a Senior Full-Stack Engineer and Tech Lead with 20+ years of experience building and leading complex platforms across e-commerce, fintech, telecom, and enterprise systems. I combine hands-on development with technical leadership to move projects from idea to reliable production delivery. How I can help: - Build full-stack web applications end-to-end - Design secure, scalable APIs and microservices - Modernize backend systems and improve performance - Lead engineering execution with clear communication and predictable delivery - Improve release quality through testing, CI/CD, and coding standards Core stack: Backend: Java (Spring Boot, Spring MVC, Spring Data JPA, Hibernate, etc.), Python (FastAPI, Django, Flask, etc.), Node.js (Express.js, NestJS, etc.) Frontend: JavaScript/TypeScript, React (Redux, React Query), Next.js, Angular, HTML5, CSS3, Tailwind CSS, Material UI Cloud & DevOps: AWS (EC2, S3, RDS, Lambda, IAM, CloudWatch, etc.), Docker, Kubernetes, GitHub Actions, Jenkins, Terraform Databases: PostgreSQL, MySQL, Microsoft SQL Server, MongoDB, Redis, etc. Selected impact: - Built high-scale commerce and platform systems - Led cross-functional teams in distributed environments - Delivered robust cloud-native services with strong reliability and maintainability If you need a senior engineer who can both build and lead, I can help you scope, implement, and scale your product with a business-first mindset and transparent communication.

💻 I help freelancers, small business owners, and personal brands stand out online with websites that not only look great but are also clear, structured, and built to convert visitors into clients. What I offer: ✅️ Custom web design with a strong focus on UX & UI ✅️ Strategic site structure tailored to your business goals ✅ Clear, persuasive copy that speaks directly to your ideal audience ✅ Clean, modern design that reflects your brand and objectives ✅ Fast, responsive development in Wix / Wix Studio / Tilda (with built-in SEO and smooth animations) ✅ Fully responsive versions for mobile, tablet, and desktop ✅️ Personal approach, excellent communication, and attention to every detail ✅ No need to hire a separate designer, copywriter, and developer — I handle it all, saving you time, reducing costs, and helping you launch faster. If you also need a logo – I’ve got you covered! I work closely with an expert logo designer to create unique, professional brand identities. ✨ Send me your ideas and project needs, and we’ll discuss your business and goals in detail. I’ll then prepare a final proposal with pricing and timeline. - Ekaterina - Web designer & founder of Millionix

⌛ Available Now 🏆 Ranked 3rd place in a Bulgarian national Front-End competition. 💼 3+ years of experience 🖐 I'm an ambitious client-focused Front-end developer who regularly attends events and competitions in my field of work. I specialize in transforming design files (PSD, Sketch, AI, Adobe XD, Figma) into pixel-perfect, semantic, and W3C standards-compliant HTML/CSS code. 🛠️ My skills: ✅ PSD to HTML | Sketch to HTML | Figma to HTML ✅ W3C Valid HTML 5 | CSS 3 | SASS | SCSS ✅ Tailwind CSS | Bootstrap 5 ✅ Pixel perfect | SEO Friendly | Responsive design ✅ Figma | Adobe Photoshop | Adobe Illustrator ✅ JavaScript | React ✅ Git | Github With a passion for web development and a drive to stay ahead of the latest industry standarts. I'm confident that I have the skills, experience, and knowledge to help you achieve your goals and bring your web development projects to life.

I build web applications that solve real business problems — not just websites, but systems that teams actually rely on daily. Over the past few years I've co-founded two SaaS products from scratch: DISA, a practice management platform used by accounting firms in Bulgaria, and Documentor, a document automation tool that eliminates repetitive copy-paste work for legal and accounting teams. Both are live, both have paying customers, and both were built end-to-end by me — from database design to deployment. Before that, I spent nearly three years at Visteon Corporation writing automotive software for in-vehicle infotainment systems — an environment where reliability and correctness aren't optional. What this means for you: I understand what it takes to build something that works in production, not just in a demo. I ask the right questions before writing a line of code, and I don't disappear after delivery. My stack: Python & Flask PostgreSQL & MySQL JavaScript (vanilla) REST APIs & third-party integrations Web scraping & automation AI API integration (OpenAI, Anthropic) If you have a business process that's held together by spreadsheets, manual work or outdated tools — that's exactly the kind of problem I enjoy solving.