About
Java Backend Engineer with 3+ years of experience designing and developing scalable microservices and high-performance REST APIs. Improved system response time by 70% through multithreading and optimized security architecture reducing vulnerabilities by 85%. Strong expertise in the Spring ecosystem, distributed systems, and secure application design. Solid foundation in data structures, algorithms, and system design with hands-on experience delivering production-ready solutions in Agile environments.
Skills & Expertise (44)
Work Experience
Java Backend Developer
Webearn Solution Pvt. Ltd
Oct 2022 - Present
Architected and deployed scalable REST APIs for authentication, catalog management, and order processing, ensuring 99.9% system uptime in production. Optimized notification delivery system using custom thread pools and concurrent processing, achieving 70% reduction in response time and improving system throughput by 3x. Implemented dynamic Role-Based Access Control (RBAC) framework using Spring Security, AOP, and custom annotations, enabling database-driven authorization and eliminating hardcoded permissions. Integrated Razorpay payment gateway with comprehensive error handling and retry mechanisms, maintaining 99% transaction success rate. Designed OTP-based email verification system reducing fraudulent registrations by 85% and enhancing platform security. Leveraged Java 8 functional programming features (Streams, Lambdas, Optional) to improve maintainability and reduce processing time by 30%. Established comprehensive test automation using JUnit and Mockito with 85%+ code coverage, reducing production defects by 60%.
Education
Bachelor of Technology in Electronics and Communication Engineering - Dr. A.P.J. Abdul Kalam Technical University
- · Afghanistan
