HARSH JALNEKAR

I’m a Backend Engineer focused on building maintainable, scalable, production-ready systems. I build modular REST APIs and secure backend workflows for multi-tenant SaaS platforms, combining robust service layers with reliable repository abstractions.

In my current role at NextGen Digi Lab, I migrated legacy data access to Spring Data JPA and Hibernate ORM to improve transaction handling and reduce connection leaks. I design PostgreSQL schemas for tenant isolation and implement RBAC using Keycloak and OAuth 2.0, while also developing event-driven internal workflows with RabbitMQ.

I also integrate AI-powered features by building local LLM document summarization pipelines with Ollama, including semantic chunking, prompt engineering, and deterministic response validation. For sensitive data, I implement cryptographic safety using AES, RSA, and hybrid AES+RSA workflows to secure data-at-rest and multi-tenant payloads.