Hire the Best OsCommerce Developers in Kyiv, UA

PHP/Symfony backend developer. 10+ years of experience. I work with payments, APIs, and e-commerce systems. I read unfamiliar code fast, debug well, and write clean code with tests. Code reviewer for 4+ years - I catch problems before they reach production. Stack: PHP 8, Symfony, MySQL, Redis, Memcached, Python, Docker. I use AI tools daily (Claude Code, Copilot). For 6 years I was part of a payments team (~6 people) building a white-label subscription platform - 50+ sites on one codebase. As part of that team I worked on: → Payment integrations: SEPA, card processing, Apple iTunes in-app purchases → Recurring billing: retry logic, rebill scheduling, refunds → REST APIs: internal and third-party integrations → Background jobs: crons, queues, data migrations → Per-site config: payment methods, offers, cross-sells, compliance flows Available 20-40 hrs/week. Looking for long-term hourly work. Open to: backend tasks, API integrations, payment features, general PHP/Symfony work. Let's talk.

🟢 AVAILABLE TO START TODAY — ✓ 7+ years production experience ✓ milestone-based delivery ✓ senior-level code review on every line ✓ quick communication ✓ shipping production-ready solutions that launch fast and scale without rewrites. ⭐️⭐️⭐️⭐️⭐️ From a client: "Great and talented developer... very much appreciated working with her" I am a full-stack engineer working on the ecommerce side and the product side. Top Rated Plus with a 100% Job Success Score, $80K+ earned across 14 contracts and 1,880 hours on Upwork. In practice that means one person handles the store, the app that extends it, and the dashboard, reporting or CRM sitting behind it, instead of you coordinating two or three vendors who each blame the other one. 🛠️ WHAT I BUILD Custom Shopify apps. Public and private apps: embedded admin apps, Node.js backends, webhooks, background jobs, billing, and the API work that keeps a store in sync with the tools around it — this is where a store stops fighting its own software and starts running the way the merchant actually operates. Shopify themes and storefronts. Custom themes and theme customization in Liquid, sections and blocks a non-developer can safely edit, metafields, third-party integrations, and cleanup on themes that have collected too much code over the years. Headless and React front ends. Next.js and React storefronts and dashboards sitting on Shopify, on custom APIs, or on neither — whatever the product needs. SaaS, CRM and ERP platforms. Role-based dashboards, reporting, and integrations, built in Node.js, Python, Vue.js or Laravel depending on what the project already runs on. Systems that need to hold up as the business grows, not just ship once. Web and mobile product work. Internal tools, companion apps, and full products end to end. 📁 SELECTED WORK 🔹 A public Shopify app for age verification, listed for any merchant to install. 🔹 A private app and API integration built for a single store's operations. 🔹 A headless commerce build for a Shopify store — 380 hours. 🔹 An ERP/CRM web app — a B2B tender management platform with portals and multi-step workflow. 🔹 A SaaS platform for SMS marketing campaigns. 🔹 A web application on Node, React, Python and AWS that ran to 948 hours on one contract. ⚙️ HOW I WORK Milestone-based delivery. Every engagement is broken into deliverables you approve one at a time, so you are never committing more than one step ahead. If the first milestone does not meet your bar, you find that out early and cheaply, not after the budget is spent. Nothing reaches you as a first draft. Code gets a review pass before it goes to you, so what you sign off on at each milestone is something you can actually judge. Fast, honest replies. My published response time on Upwork is 0 to 4 hours. When you message me you get a straight read on timeline, budget fit, and whether I am the right person for the job. If I am not, I say so in the first reply instead of the third week. Proof before you commit. I am happy to share past project examples, code samples, or a reference call before you hand anything over. 📋 BEFORE YOU SPEND ANYTHING I ask questions instead of sending a pitch deck. What the thing has to do, who uses it, what happens today when it breaks. I read the store or the repo first. On an existing build, half the scope lives in decisions somebody already made — I would rather find those before quoting than explain them to you afterwards. If what I find changes the estimate, you hear it then. Not in week three, and not in an invoice. Milestone one is small on purpose. Something you can open in a browser and judge for yourself, so the first thing you risk is one deliverable rather than a project. ✅ GOOD FIT IF Your store has outgrown an off-the-shelf app and needs a custom one built for how you actually operate. Your theme is slow, fragile, or three developers deep, and needs one person to take ownership of it. You need a public app built to Shopify's review standards, not just something that works on your own store. You need the Shopify side and the platform behind it — dashboard, reporting, CRM or ERP — handled by the same developer. You need a full-stack developer for a SaaS, CRM or ERP product built to survive the next two years of features. You are mid-build with a developer who went quiet, and you need someone who will read the existing code before touching it. You need a web or mobile product handled end to end by one person rather than a rotating bench. 🚫 PROBABLY NOT A FIT If you are comparing on hourly rate alone, I will not be the cheapest name on your list. 🧰 MY STACK Node.js, React, Next.js, TypeScript, Python, AWS, Vue.js, JavaScript, PHP, Laravel, MySQL, PostgreSQL, REST API, Shopify, Liquid, HTML5, CSS3, SaaS 📩 NEXT STEP Tell me what you are trying to ship. You get an honest read and a small first milestone. Updated: August 21, 2026

Got a Shopify problem? I fix it fast. I work with store owners and agencies on focused Shopify tasks — the kind that are too technical for the theme editor but don't need a 3-month project: — Theme bugs & layout fixes (Liquid, CSS, JS) — App conflicts & broken checkout — Custom features: pricing logic, filters, calculators — Third-party integrations: CRM, ERP, payment gateways — Speed optimization & Core Web Vitals — Shopify API & webhooks I've been in web development for 6+ years and I know how real stores look — messy apps, inherited themes, no documentation. I don't need perfect conditions to get things done. ✓ Fast turnaround — most fixes same day or next ✓ Clear communication — you'll always know what's happening ✓ Honest scope — if it takes longer, I'll tell you before, not after Send me your issue — I'll tell you exactly what's wrong and how to fix it.

I’m an experienced Shopify & WordPress developer with 5+ years of building online stores, custom apps, and high-performing themes that not only look 😍 beautiful but sell effectively ⤴️ From sleek Shopify customizers and API integrations to fully responsive WordPress builds, I specialize in creating e-commerce solutions that feel effortless for your customers and powerful for your business. What sets me apart? I don’t just code - I think about scalability, usability, and long-term success. Whether you need a custom Shopify app, a WordPress plugin tailored to your business, or a full site refresh with modern UX/UI, I bring together clean development practices, advanced tooling (Liquid, PHP, REST APIs, SCSS, Docker), and design-driven precision to deliver results that go beyond expectations. If your goal is to launch a store that’s fast, flexible, and future-ready - you’re in the right place. Let’s talk about your project, and I’ll show you how we can turn your idea into a store customers love to shop. Kind regards, Anastasiia

Hi there! After receiving PhD in material science, I decided to turn my hobby into a career of web developer. With almost 10 years of experience I have already developed a lot of complex projects. Currently, I'm a Teamlead of the Ecommerce Web Development Agency - Polyany s.r.o (upwork.com/ag/polyany/). Our team provides services in web, mobile (Flutter), e-commerce development, design, and consulting. We create, modify, and support stores based on Prestashop, Shopify, Magento, etc. Our company specializes in custom product configurator development that enhances the online shopping experience. This solution is designed to integrate seamlessly into the eCommerce platform, allowing your customers to modify products directly on your website. From Printing to Jewelry, our configurators streamline the customization process, helping companies improve customer engagement, reduce order processing times, and increase overall sales. ⭐️⭐️⭐️⭐️⭐️ TOP Rated Why you should choose me? 🚀 10+ years proven track record experience 🚀 Tech Stack: Prestashop, WordPress, WooCommerce, HTML5, CSS3, SCSS, JavaScript, jQuery, AJAX, Bootstrap, PHP, Adobe Photoshop, Adobe Illustrator, Joomla, Opencart, Magento, Set up and maintenance of VPS 🚀 Extensive experience in Module/Plugin/Theme development - any level of complexity 🚀 Huge experience in API integration: shipment, payment (Stripe, Paypal), supplier warehouses, social media integrations, CRM integrations, Prestashop API etc. 🚀 I provide long-term support, emergency support 🚀 I'm fluent in English We are proud that our clients stay with us for the long term and recommend us to others. “The Polyany team and more specifically Roman, who was the developer on this job, was very professional and efficient in all manners. The work was done in time and the code was clean. We highly recommend them and will work with them again without hesitation (actually we already are).” I like working on different challenging projects and always try to provide the best results. I'm communicative and easy to work with. If you're interested, please drop me a line, I'll be glad to help you. If you're still not sure how good I'm at my job - you can see excellent feedbacks below along with 100% job success!

I help businesses build high-performing websites and web platforms tailored to their industry, growth stage, and business model. I’m Anastasiia, a Full-Stack Developer with 6+ years of experience in building scalable web solutions. At Dinamicka Development, we’ve contributed to 80+ digital products – from corporate websites and complex e-commerce platforms to real estate systems, logistics tools, and healthcare solutions. My focus is simple: build websites and platforms that don’t just look good – but actually support operations, automate processes, and drive revenue. 🏆 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂 𝗚𝗲𝘁 𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝗪𝗶𝘁𝗵 𝗠𝗲 ✅ Custom website & web platform development (from landing pages to complex systems) ✅ Industry-focused architecture (E-commerce, Real Estate, Logistics, Healthcare) ✅ Full-cycle team: UX/UI, development, QA & DevOps ✅ Scalable backend infrastructure built for growth ✅ Clear processes, predictable timelines & transparent communication ✅ I also actively use an AI-assisted coding approach (Claude, Cursor, GitHub Copilot) to speed up development, reduce repetitive work, and optimize project costs. Depending on the project, this can reduce implementation time by around 20–30% while keeping code review and QA processes in place. 𝗪𝗵𝗮𝘁 𝗜 𝗕𝘂𝗶𝗹𝗱 ✔️ Corporate & marketing websites (CRO, SEO, website revamp) ✔️ Shopify & WordPress E-commerce stores (custom checkout, payment integrations) ✔️ Real estate platforms (property listings, MLS integrations, CRM sync) ✔️ Logistics portals (ERP, shipment tracking, dashboards, workflow automation) ✔️ Healthcare platforms (patient portals, admin systems, secure data flows) ✔️ Manufacturing (Document management systems, WMS, third party integration) ✔️ Admin panels & analytics dashboards ✔️ Marketplace platforms 📌 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜 𝗙𝗼𝗰𝘂𝘀 𝗪𝗶𝘁𝗵 E-commerce & Retail | Real Estate & Construction | Fintech & Insurance | Healthcare & Sports | Logistics & Supply Chain | B2B Platforms | HR & Internal Systems | SaaS & Enterprise Software ⚒️ 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 • Frontend: React.js, Next.js, Vue.js • Backend: Node.js, Python (Django, FastAPI), PHP (Laravel), .NET, • Databases: PostgreSQL, MongoDB, MySQL 🚀 Let’s build a website or platform that works not only today, but supports your growth long term.