Back End Developer

Job Title: Magento Backend Developer Location: Chennai Experience: 5+ Years About us: 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 Backend Stack Developer with deep experience in Magento 2. to build and maintain cutting-edge headless e-commerce solutions. This role will require you to design scalable backend systems in Magento. 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 magento 2. E-Commerce Performance & Scalability Use Redis, Varnish, 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. Ensure high availability for regional storefronts during sales campaigns. 3. Security & Compliance Stay up-to-date with Magento security patches. Secure API consumption with headers, tokens, and CSRF protection. Maintain secure handling of user data in Magento. 4. 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. 5. Continuous Learning & Code Culture Back-End (Magento): Stay current with the Magento ecosystem and share backend insights. General: Maintain documentation and promote knowledge sharing within the team. Requirements 5+ years of Magento development experience. Proven expertise in Magento 2 development (custom modules, GraphQL, plugin architecture). Skilled in backend optimization (Redis, Fastly), performance profiling. Experience with Git workflows. Strong collaboration and communication skills. Nice to Have Magento Certification. Experience with headless commerce or API-first architecture. Knowledge of DevOps tools and pipelines. Exposure to A/B testing, analytics tools, and conversion optimization. Why 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 outcomes