Senior Full Stack Developer

Full Stack Developer – Headless Magento (Adobe Commerce) + ReactAbout Codewalla: Codewalla is a New York–based product studio with engineering teams in India. Since 2005, we’ve built innovative products that scale. We work at the intersection of design, engineering, and AI developing systems shaped by real business needs and tested in the real world. Our team moves fast, thinks deeply, and cares about pushing what software can do to empower people and businesses.Role Overview: We are seeking a highly skilled Full Stack Developer with deep experience in Magento 2 and React/Next.js to build and maintain cutting-edge headless e-commerce solutions. This role will require you to design scalable backend systems in Magento while crafting high-performance, responsive frontend applications using modern JavaScript frameworks. You’ll play a critical role in delivering seamless, multi-region, multi-currency experiences, and driving performance, security, and conversion optimizations across the stack.What will you be working on? 1. Magento (Adobe Commerce) Back-End Development Design, develop, and customize Magento 2 solutions including custom modules, themes, and plugins. Implement and extend GraphQL and REST APIs for frontend consumption. Configure Magento for multi-region, multi-currency, and localized storefronts. Build and maintain headless Magento PWA websites integrating with backend services via APIs. Integrate third-party systems: ERP, PIM, payment gateways, shipping/logistics, and inventory platforms. Utilize Magento architecture: dependency injection, service contracts, events/observers, and plugin mechanisms. Manage Magento upgrades, patches, and data migrations with backward compatibility. Troubleshoot and resolve backend issues including checkout, cart logic, and third-party conflicts. Experience writing sql queries for mysql database in magento2. React Front-End Engineering Build responsive, accessible, and performant UIs using React, Next.js, JavaScript/TypeScript, HTML/CSS. Consume and connect to Magento APIs (GraphQL/REST) efficiently. Develop reusable UI components following scalable frontend architecture. Optimize Core Web Vitals using Lighthouse, Chrome UX Report, Web Vitals library, and PageSpeed Insights. Implement lazy loading, code splitting, tree shaking, and CDN-based caching. Ensure cross-browser compatibility and accessibility compliance. Configure and fine-tune frontend builds using Webpack. Collaborate with designers to build intuitive, conversion-optimized interfaces. Familiar with testing framework/system like browser stack.3. E-Commerce Performance & Scalability Use Redis, Fastly, and Magento indexing to optimize performance. Architect solutions with load balancing, microservices, and API-first design. Monitor server-side performance and scalability metrics during peak loads. Experience with new relic for monitoring and debuging.4. Security & Compliance Implement secure coding practices including token handling and input sanitization. Stay up-to-date with Magento security patches. Secure API consumption with headers, tokens, and CSRF protection. Maintain secure handling of user data in client-side code. Enforce HTTPS, CORS policies, and frontend access control.5. Agile Delivery & Collaboration Work within Agile/Scrum teams with product managers, designers, QA, and DevOps. Participate in daily stand-ups, sprint planning, and retrospectives. Deliver features end-to-end from ticket to deployment. Use CI/CD pipelines for frequent, stable releases. Collaborate via Git workflows, code reviews, and documentation.6. Continuous Learning & Code Culture Back-End (Magento): Stay current with the Magento ecosystem and share backend insights. Front-End (React/Next.js): Explore new Next.js features and contribute to design system discussions. General: Maintain documentation and promote knowledge sharing within the team.What should you have? Experience & Track Record 5+ years of hands-on full stack development experience. Proven expertise in Magento 2 development (custom modules, GraphQL, plugin architecture).Technical Expertise Strong experience with React, JavaScript/TypeScript, HTML, and CSS. Familiarity with Next.js SSR, SSG, and App Router. Knowledge of DevOps tools and pipelines. Exposure to A/B testing, analytics tools, and conversion optimization. Bonus: Magento Certification.Collaboration & Soft Skills Excellent problem-solving skills and attention to detail Strong communication and documentation abilities for effective cross-functional collaboration Comfortable owning features end-to-end from ticket to deployment and beyondWhy work at Codewalla? Build for scale: Work on products that get investor love and scale to global audiences Be part of AI-native product development: Integrate AI tools into how we design, build, and ship Global exposure: Directly collaborate with US-based startups, VCs, and product teams Learn fast: Small, elite teams with zero bureaucracy and high ownership See your impact: Every decision you make will shape user experience and business outcomesInclusion Matters We’re an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all team members.If you're excited about building scalable e-commerce systems with a modern tech stack, we’d love to hear from you. Apply now and help us redefine headless commerce.