Abhishek Singh — Backend Engineer focused on Java and Spring Boot. I build secure, scalable microservices and APIs with JWT authentication, JPA/Hibernate, and well‑designed data models on PostgreSQL/MySQL. Comfortable with in‑memory caching, structured logging (Kafka), timezone‑safe utilities, Docker‑based deployments and AWS. Recently, as a Java Backend Intern at PolicyBazaar (Aug–Nov 2025, Gurugram), I delivered a production healthcare consultation microservice enabling online/offline doctor bookings, patient profiling and payment tracking; integrated partner REST APIs; added robust validation, caching and observability; and implemented AiSHA health‑data endpoints (metrics/graphs and authenticated POST writes).
Bachelor of Technology — Information Technology
2021 – 2025 · Dr APJ Abdul Kalam Technical University, Lucknow
Java Backend Intern — PolicyBazaar.com
Aug 2025 – Nov 2025 · On-site GurugramBuilt a Spring Boot microservice for healthcare consultations (doctor bookings, patient profiling, payment status). Integrated JWT-secured partner REST APIs with JPA persistence and Kafka-based structured logging. Added robust validation, in-memory caching and date/time utilities for reliable, timezone-aware processing. Implemented AiSHA health-data APIs (graphs and POST endpoints) with proper JWT authentication and DB writes.
AI Researcher — Coding Jr
Jan 2025 – Feb 2025 · RemoteBuilt a custom Copilot using open Large Language Models and fine-tuned it for a specific use case.
- Machine Learning Data Science Program — Greeks for Greeks (Apr 2024 – Sep 2024)
- Java
- Spring Boot
- Git
- Docker
- SQL (PostgreSQL, MySQL)
- AWS
- Linux
- Scikit-learn
- Python
- C++
- Machine Learning
- Flutter
- Data Structures & Algorithms