VAYUZ Technologies - Backend Developer - Java

Senior Backend Engineer

DTC and retail brands

key role in architecting and developing the core backend systems

• Develop multi-tenant backend services using Java 17+ and Spring Boot, handling millions of API requests daily.
• Build push notification systems, community engagement systems, and mobile-optimized API endpoints.
• Implement advanced caching strategies and performance optimizations to maintain global response times under 200ms.
• Design and maintain robust data processing pipelines for customer analytics, engagement tracking, and business intelligence.
• Develop personalization engines to deliver tailored experiences for millions of end-users.
  

Integration & API Ecosystem

• Design developer-friendly APIs that enable seamless integrations with major e-commerce platforms like Shopify, WooCommerce, and BigCommerce.
• Build webhook systems, data synchronization services, and third-party connector frameworks.
• Develop authentication, rate limiting, and security systems to safeguard both platform and customer data.
• Create monitoring and analytics systems that provide actionable insights into platform usage and performance.
  

What We're Looking For Core Engineering Expertise

• Minimum 6 years of backend development experience with proven success in building and scaling SaaS systems.
• At least 3+ years in a product-focused company, contributing to customer-facing features and platform evolution.
• Deep proficiency in Java (JDK 17+) and Spring Boot, with strong knowledge of JVM optimization.
• Hands-on experience with Spring MVC, Spring Data JPA, and Spring Security.
• Ownership of production systems, including debugging, performance tuning, and maintaining high-availability environments.
• Expertise in microservices architecture, including service boundaries, distributed transactions, and inter-service communication.
  

SaaS Platform Experience

• Experience with multi-tenant architectures, covering tenant isolation, resource sharing, and customer-specific configurations.
• Proven API design skills, with the ability to create intuitive, well-documented APIs that developers enjoy using.
• Database expertise across SQL (PostgreSQL/MySQL) and NoSQL (Firebase/Redis) systems, with a focus on query and performance optimization