Backend Developer with Frontend Knowledge & E-Commerce Expertise Location: Sector 132, Noida Job Type: Full-time Experience: 3-7 years Industry: IT Services, E-Commerce, SaaS, FinTechJob Overview:We are looking for a Backend Developer with expertise in frontend technologies, payment gateway integrations, and e-commerce development. The ideal candidate should have strong programming skills, experience in developing scalable web applications, and knowledge of integrating APIs, third-party services, and cloud platforms.Key Responsibilities:1. Backend Development & API IntegrationDevelop, maintain, and optimize server-side applications using Node.js, Python, Java or Ruby on RailsDesign and develop RESTful and GraphQL APIs for seamless frontend-backend communicationIntegrate third-party services and APIs including payment gateways, authentication systems, and cloud servicesEnsure high availability, performance, and security of backend applications2. Database Management & OptimizationDesign and optimize relational (MySQL, PostgreSQL) and NoSQL (MongoDB, Firebase) databasesImplement database indexing, caching strategies, and query optimizationDevelop and maintain data pipelines for real-time and batch data processing3. Payment Gateway & E-Commerce DevelopmentIntegrate payment gateways (Stripe, PayPal, Razorpay, Square, etc.) ensuring PCI-DSS complianceDevelop and optimize e-commerce platforms (Shopify, Magento, WooCommerce, custom-built solutions)Implement cart, checkout flows, order management, and transaction security measures4. Frontend Collaboration & IntegrationWork closely with frontend developers (React.js, Angular, Vue.js) to ensure smooth API integrationDevelop and optimize server-side rendering (SSR) and dynamic content loadingImplement authentication (OAuth, JWT, SSO) and user authorization systems5. DevOps, Security & Performance OptimizationDeploy and manage applications on AWS, Google Cloud, Azure, or other cloud platformsSet up CI/CD pipelines (Jenkins, GitHub Actions, Docker, Kubernetes) for automated deploymentImplement security best practices for data protection, API security, and complianceOptimize backend performance for high-traffic applicationsKey Skills Required: Backend Languages: Node.js, Python, Java, PHP, Ruby on Rails Frontend Technologies: React.js, Vue.js, Angular (for integration purposes) Databases: MySQL, PostgreSQL, MongoDB, Firebase APIs & Integrations: RESTful, GraphQL, OAuth, JWT Payment Gateways: Stripe, PayPal, Razorpay, Square E-Commerce Platforms: Shopify, Magento, WooCommerce Cloud & DevOps: AWS, Google Cloud, Docker, Kubernetes Security & Performance: PCI-DSS compliance, authentication protocols, server securityQualifications & Experience: Bachelor's/Masters degree in Computer Science, IT, or related field 3-7 years of experience in backend development, API integration, and e-commerce solutions Experience with high-traffic applications, payment gateway integration, and cloud hosting Ability to work in fast-paced, agile development environmentsWhy Join Us? Work on cutting-edge e-commerce and SaaS projects Be part of a global team working on scalable applications Opportunity to innovate and optimize high-performance systems Competitive salary + performance-based incentivesIf you're passionate about building scalable, secure, and high-performance backend solutions, apply now!