Full-Stack Developer Shopify

mohi.to is a 60-person team of specialists in e-commerce, digital product design & development. On a daily basis, we help e-commerce brands, scale-ups and software houses create new digital products as well as develop existing one. In our internal satisfaction surveys, the developers appreciated a great team, from which you can learn, growth driving challenges and interesting projects for global brands, informal workplace, work comfort, professional and personal development. Our clients (Answear.com, Durex, Scholl, Mowi, Eurocash, L’Occitane, Eveline Cosmetics, Nokia – to name a few) value us for partner relations, knowledge, quality and efficient communication. We are currently looking for a Full-Stack Developer with a strong background in e-commerce and Shopify to join our team at wecanfly | Shopify Premier Partner agency WHAT WE OFFER Salary: 17,000 – 21,000 PLN net + VAT on a B2B contract 100% remote work, with optional offices in Wrocław and Rzeszów Life insurance and health care Referral bonus for recommending developers to our team Exciting and challenging projects for global brands Easy Recruitment Process - typically takes 2-3 days: Interview with CTO + code review or test assignment Interview with one of the co-founders JOB REQUIREMENTS Senior Shopify Expertise Deep experience with the Shopify ecosystem, including Liquid, Storefront & Admin APIs, complex theme architecture, and custom app development. Proven track record in configuring Shopify B2B solutions and managing multi-market setups via Shopify Markets. Strong familiarity with popular e-commerce tools, ecosystem integrations (e.g., Klaviyo, ReCharge, Yotpo, Gorgias), and connecting Shopify with external PIM/ERP systems. Strong Full-Stack background Solid commercial experience building applications across the stack, heavily focused on the JavaScript ecosystem. While moving fluently between modern frameworks, you maintain a strong appreciation for core web fundamentals, including clean, semantic HTML and modern CSS. Business-oriented mindset Deep understanding of e-commerce processes, customer journeys, and business goals. Ability to align technical decisions with key metrics (e.g., conversion rates, performance, user retention) and translate business needs into effective solutions that drive sales AI proficiency Strong, practical skillset in using AI coding assistants and AI tools to accelerate problem-solving, code refactoring, and architectural planning API Development & Integration Experience working with APIs, including fluency in REST & GraphQL development and integration Communication Excellent verbal and written communication skills in English (B2+). Fluency in Polish is required. Problem solving High independence in diagnosing technical problems and proposing scalable architectural solutions. TECHNOLOGY STACK Languages & Frameworks: JavaScript / TypeScript, Node.js or PHP, React, Remix, Next.js Shopify Ecosystem: Liquid, Shopify Admin & Storefront API, custom embedded apps, Shopify Functions, Shopify Extensions, Shopify Markets, Shopify B2B, Shopify Flow, Hydrogen API & Integrations: GraphQL, REST API, Webhooks, Postman Infrastructure & DevOps: Docker, GitHub Actions, CI/CD Tools & Architecture: Git, Jira/ClickUp, Headless Commerce Architecture