Hi, I'm David. I'm a senior full-stack engineer with 18+ years building production web systems. I currently work on an AI-powered HR software suite (ATS, automated video and phone interviews, AI-driven competence evaluation, skill-assessment games) built on a Go and Node/TypeScript microservice architecture, serving enterprise clients. I take on projects where a real engineer is needed – the kind where a quick no-code build falls apart under real load, real data, or real integration complexity. What I do well: === System integrations: connecting platforms, APIs, and services so they work reliably end to end, including the messy edge cases API design & backend work: Go, Node/TypeScript, type-safe data models, PostgreSQL, indexing and performance Frontend delivery: React, Next.js, TanStack, TypeScript, with attention to UX, accessibility, and maintainability Full-stack SaaS: architecting and shipping complete applications, from data layer to interface === Selected background: - Enterprise e-commerce platforms for global brands (React, Vue Storefront, BigCommerce) - End-to-end machinery management SaaS for John Deere's Slovakian division – including resolving database scaling bottlenecks for hundreds of concurrent users - Multiple full-stack SaaS products architected and launched independently I work best on well-defined projects with a clear deliverable. I communicate plainly, scope honestly, and tell you if something is the wrong approach before you spend money on it. If you've got a web system, an integration, or a backend that needs someone who actually knows how it works under the hood, let's talk.

Hello, I help authors turn their ideas into beautiful, market-ready children’s books that kids love and parents remember. Whether you’re starting with just an idea or a full manuscript, I handle everything from illustration to final publishing-ready files, so you don’t struggle with design, consistency, or formatting. ✨ What I Can Do for You: ✔ Children’s Book Illustration (2D & 3D Disney-style) ✔ Character Design (consistent across all pages) ✔ Storybook & Picture Book Illustration ✔ Watercolor & Cartoon Illustration ✔ Book Cover Design ✔ Full Book Formatting (Amazon KDP – Paperback & Hardcover) 🎯 Why Clients Choose Me: ✔ Strong focus on storytelling and emotion ✔ Clean, engaging visuals kids connect with instantly ✔ Consistent characters from first page to last ✔ Print-ready files with correct KDP specifications ✔ Clear communication and fast response 💡 Flexible & Client-Friendly Approach I understand every project has a different budget, so I’m open to working with you to find the best approach that delivers quality while staying within your range. I’m also open to starting with a small test or sample page at a minimal cost, so you can evaluate the style, character direction, and overall quality before committing to the full project. This gives you confidence in the final result and ensures we’re perfectly aligned from the start. I don’t just create illustrations I help you build a book that is ready to publish, sell, and stand out. Let’s Get Started Send me a message with your idea I’ll be happy to bring your vision to life. I’ll be looking forward to working with you.

I specialize in Amazon product listing optimization, imagery strategy, and Amazon Pay Per Click Advertising. Working with different brands, I have made existing listings professional and also have created some very exclusive listings & storefronts from scratch. I also help Amazon brands build a profitable PPC strategy for any target ACoS level aligned with business objectives, providing stable Organic Sales and Ranking growth as a result. You can check my portfolio below for advertising campaign results with very enticing figures to a seller. Services I offer: ✅ Listing Copywriting & SEO ✅ Listing Images ✅ Amazon A+ Pages ✅ Amazon Advertising ✅ Amazon Seller Central ✅ Amazon Pay Per Click Advertising ✅ Amazon Campaign Management Questions? Feel free to send me a message here and I will be excited to help you! Seller's life is complicated, Let me make your's simple.

SUMMARY Experienced and innovative software engineer with over 13 years of experience driving technical strategy, managing cross-functional teams, and delivering scalable solutions across retail and e-commerce sectors. Expertise in leveraging machine learning, cloud-based systems, and data engineering to deliver high-value, customer-centric solutions. Strong leadership skills with a track record of mentoring engineers, optimizing performance, and leading complex projects to successful completion. KEY STRENGTHS * Strong leadership and team collaboration skills * Ability to mentor and guide junior engineers * Expertise in data engineering and machine learning systems * Proven ability to optimize system performance and reduce operational inefficiencies