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An experienced Software Engineer seeking job opportunities. Capabilities: - Building new architecture from scratch with strong refactoring and performance improvement skills. - Proficient in solving and fixing foreign code, even with unknown programming language (Java, C#). - Experienced in migrating outdated and complex projects to new ones, implementing the latest ECMAScript version features, Vue.js, or Typescript. - Adequate experience with backend technologies, including PHP and Node.js. - Familiarity with databases such as MySQL and MongoDB. - Good understanding of the project development lifecycle. Additionally, I have experience as a technical interviewer (junior/middle level) for new team members, further onboarding, and mentoring. - No boundaries to learn more and achieve new goals.

Freelance programmer, bachelor of Computer Science, with several decades of programming experience (since 1999), from backend programming (Perl, PHP, nodejs) to front end (HTML/js/ts). Main strengths: - vast area of expertise, from backend to frontend programming using several platforms and their combinations. - fast turnaround (usually same day - if I available - free from current tasks). Flexible in times and terms. - long term support for completed projects (one month free tech support including small design fixes, free bug fixes ) Main skills for now: - Building a browser based web apps on React, Vue js , Angular, mainly visualization oriented projects - 2d,3d, force graphs, tree graphs, complex combined graphs, dashboards...many more) - using mainly D3.js and Three.js. Over 8 years of experience with over 100 completed projects in this area (some are available online, some shown as screenshots) - backend programming (Perl, PHP), with common stacks (Apache and other web servers, Mysql, SQlite, PostgreSQL, MongoDB, NoSQL and some other dbs). - over 15 years of experience (past years) Have some experience working on multi-platform desktop software applications (using Qt library, targeted more for Linux platform). I use AI where this is justified way and helps to speed up development. Also can help fixing various AI generated errors and problems in code.

Figma files come in messy. Browsers don't care about excuses. I make the two get along. Front-end specialist. Pixel-perfect or it doesn't ship. 5+ years, 80+ projects, zero "it works on my machine" nonsense. What I bring to the table: - Layouts that hold up — mobile, tablet, 4K, doesn't matter - SCSS + BEM architecture that won't turn into spaghetti in month three - Designs implemented down to the pixel, not "close enough" - Animations that feel intentional, not decorative Stack: HTML5, CSS3/SCSS, JavaScript, Tailwind, Bootstrap, Git, Webpack. No drama. No missed deadlines. No radio silence mid-project. You send the files, I send progress — screen recordings, staging links, straight answers. Drop your design file. I'll come back with scope and timeline — fast, no fluff.

Welcome! With over a decade of experience in web development, including 4 years of successful projects on Upwork, I specialize in creating responsive, cross-browser websites. My skills include: • React; • Vue.js; • Ember.js; • Angular; • Three.js (also creation of 3d models to use with this library); • HTML5; • CSS3; • JavaScript; • jQuery; • SASS/SCSS; • Tailwind CSS; • WordPress; • Advanced Custom Fields (ACF); • PHP; • WooCommerce. Only clean, valid code optimized for all mobile and desktop systems. Whether you're a startup or an established business, I'm here to turn your vision into reality. Let's collaborate and bring your ideas to life!

Hey folks👋 Welcome to my Upwork profile! I'm a Web Developer with over 12 years of commercial experience. I provide clean, high-quality, performant, and maintainable code. I'm strong in development and support, including applications, database integrations, interfaces and new enhancements. My professional skills⤵️ - OOP and OOD principles, MVC - HTML, CSS \ SCSS, Tailwind CSS, Bootstrap - JavaScript, Vue.js\ Pinia - PHP, Laravel - MySQL, GraphQL - WordPress CMS - PSD to HTML - WebSocket - REST API and third-party APIs - AWS S3 - Docker - Unit tests and manual testing - CI/CD - Github, Gitlab and Bitbucket Previous projects: - CRM - LMS - SEO Tool - Price Comparison System; - Management Tool - E-commerce - Marketplaces - B2B - Chrome Extension 📎 Collaborative tools: Jira, Trello, Asana, Clickup Slaсk, MS Teams My goal is to build productive and long-term relationships. Happy to be the part of growing business, perspective startup or help you to update and support current project. Drop me a message and we'll discuss the terms of cooperation🚀

✅ 20+ years of enterprise engineering expertise ✅ 100% Traceability & 0% Double-Allocation Inventory Ecosystems Manual tracking, spreadsheet discrepancies, and fragmented multi-channel orders drain up to 30–40% of operational efficiency, creating massive supply chain bottlenecks. We help mid-market manufacturers, B2B wholesale distributors, and global e-commerce brands eliminate siloed workflows by architecting unified digital operating systems. Specializing in high-impact operations automation, we design and build bespoke, multi-tenant cloud SaaS platforms, advanced Warehouse Management Systems (WMS), and robust Enterprise Resource Planning (ERP) tools that safely handle heavy operational scale without adding headcount. ⚙️ What We Do Best & Our Impact Metrics: Custom ERP & WMS Platform Development: Engineering complete multi-role web architectures and secure mobile apps from scratch. Result: Replaced systems like Floorzap and legacy tools to drive 10x higher processing throughput for operations teams. Multi-Channel & Multi-Tenant Integrations: Developing deep, automated sync pipelines between core databases and external environments. Result: Seamlessly managed over 400+ active SKUs via real-time Shopify Plus, Amazon SP-API, Faire, and QuickBooks Online financial networks. Advanced Inventory Tracking & FEFO/FIFO Logic: Implementing granular lot tracking, expiration monitoring, serial numbers, and physical bin/shelf location mapping. Result: Reduced manual data capture errors by 45% and established total stock compliance in regulated spaces. Automated Fulfillment & Shipping Workflows: Custom engineering sequential label printing, weight scale/dimensioner data capture, and AI exception-tracking. Result: Automated real-time CSV extraction directly to warehouse APIs, reducing administrative overhead by ~50%. Hardware & Scan Integration Engine: Building native and hybrid mobile applications (React Native) utilizing DataWedge APIs for rugged Zebra PDA devices and real-time UPC barcode workflows. Result: Boosted on-the-floor sorting and dispatch validation speeds by 150%. 🔄 Our Proven Operational Process: Scope Discovery & Architecture Mapping: We analyze your existing workflows (including reviewing complex 20+ page specification documents, legacy DB architectures, and internal spreadsheets) to build an ironclad technical roadmap detailing milestones, data entity diagrams, and risk assessments. Custom Execution & Clean Engineering: Building on top of secure, high-performance tech stacks (Next.js, Node.js, Supabase, PostgreSQL). We build scalable database schemas featuring Row-Level Security (RLS) for complete multi-tenant data isolation and continuous server health logging. Deployment, QA & Infrastructure Scale: We ship code iteratively using strict GitHub PR reviews and automated Docker CI/CD pipelines to AWS, Vercel, or custom cloud servers, completing full functional validation inside sandboxed testing loops before turning systems live. 🛠️ Domain & Technology Expertise (Proven Results): Platform & Architecture: Custom ERP, Multi-Tenant WMS SaaS, B2B Work Order Engines, Client Portals against Floor Plans. Automations & Workflows: n8n, Zapier, Webhooks, Multi-Carrier API Integrations (ShipStation, UPS, FedEx, USPS), OpenClaw AI frameworks, ShipStation API Integration Data & Logistics Core: PostgreSQL, Supabase RLS, Secure OAuth/M365 Integrations, Automated PDF Quotation Engines. Frontend & Native Mobile: Next.js 14 (App Router), React, Tailwind CSS, Shadcn/ui, React Native (iOS & Android). Whether you need to scale your operations to thousands of monthly movements, replace a legacy system without disrupting live trade, or deploy a commercial WMS SaaS platform to market, we turn messy logistics into clean code.