Full Stack Developer | React • Spring Boot • JS. Turning database schemas into clean, highly responsive UIs.

Devee Ananya Kothuru  • Peerlist

Built a full-stack system to transform negative user experiences into actionable preventive rules using AI-driven analysis. Designed relational data models (AntiVisionEntry, Pattern, Rule) with JPA/Hibernate to manage entity relationships and persistence. Developed RESTful services using layered architecture (Controller ? Service ? Repository) ensuring modular and maintainable code. Integrated Gemini AI using Java HttpClient and JSON parsing, with fallback handling for consistent system behavior

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Designed a 5-table relational PostgreSQL schema with cascading foreign key constraints (users -> clients -> projects -> invoices -> payments) for complete data integrity. Built 15+ REST APIs with Spring Boot covering full CRUD operations, JWT-based stateless authentication, and role-based data isolation ensuring each freelancer accesses only their own data. Implemented Spring Security filter chain with a custom JWT filter to intercept every request, validate tokens, and populate the security context prior to controller execution. Developed a React frontend with protected routing, Axios interceptors for automatic token injection, and a real-time dashboard displaying earnings, active projects, and pending invoices. Built a payment tracking module logging every transaction with mode (UPI/Bank Transfer/Cheque), reference ID, and timestamps – eliminating payment disputes with permanent audit records.