Jogi Hari Kumar

Backend Engineer (SDE-1)

Bangalore, India 2+ yrs exp 85 · Excellent

About

Backend Engineer (SDE-1) with 2 years of experience building scalable backend systems in Java and Spring Boot. Skilled in REST APIs, microservices, event-driven architecture, caching, and distributed systems in production environments. Hands-on experience with Kafka, Redis, PostgreSQL, MySQL, AWS S3, and Spring Security. Solved 300+ data structures and algorithms problems on LeetCode.

Skills & Expertise (24)

MySql Intermediate

5.5/10

0.5

Years Exp

AWS S3 Intermediate

5.5/10

0.5

Years Exp

Event-Driven Architecture Intermediate

5.5/10

0.5

Years Exp

Git Intermediate

5.5/10

0.5

Years Exp

Apache Kafka Intermediate

5.5/10

0.5

Years Exp

Postgresql Intermediate

5.5/10

0.5

Years Exp

Java Intermediate

5.5/10

0.5

Years Exp

Microservices Intermediate

5.5/10

0.5

Years Exp

REST APIs Intermediate

5.5/10

0.5

Years Exp

Spring Security Intermediate

5.5/10

0.5

Years Exp

Spring Boot Intermediate

5.5/10

0.5

Years Exp

SQL Intermediate

5.5/10

0.5

Years Exp

Distributed Systems Intermediate

5.0/10

0.5

Years Exp

System Design Intermediate

5.0/10

0.5

Years Exp

Data Structures & Algorithms Intermediate

5.0/10

0.5

Years Exp

Postman Intermediate

5.0/10

0.5

Years Exp

Maven Intermediate

5.0/10

0.5

Years Exp

Docker Intermediate

5.0/10

0.5

Years Exp

WebSocket Intermediate

5.0/10

0.5

Years Exp

Hibernate Intermediate

5.0/10

0.5

Years Exp

JPA Intermediate

5.0/10

0.5

Years Exp

Redis Intermediate

5.0/10

0.5

Years Exp

OOP Intermediate

5.0/10

0.5

Years Exp

Design Patterns Intermediate

5.0/10

0.5

Years Exp

Work Experience

Software Development Engineer (Backend)

Yulu

Jul 2024 - Present

Developed backend services for a DIY battery swapping system, managing the swap lifecycle through Kafka-driven event processing and asynchronous workflows. Built ride damage assessment workflows using AWS S3 image storage and validation pipelines, reducing manual review effort by approximately 35%. Implemented real-time notification orchestration using Kafka consumers and Firebase Cloud Messaging for ride lifecycle and penalty events, improving user transparency and system reliability. Designed a Redis cache-aside strategy for high-frequency bike rental APIs, reducing database load by approximately 30% and improving API response latency. Investigated and resolved 50+ production issues involving REST APIs, SQL queries, Kafka event flows, and microservices communication, improving overall system stability. Maintained backend services within a microservices architecture, ensuring reliable service-to-service communication and data consistency.

Java Developer Trainee

MountBlue Technologies

Apr 2024 - Jul 2024

Built and deployed backend applications using Java, Spring Boot, REST APIs, MySQL, and PostgreSQL, following layered architecture best practices. Optimized database schema design and JPA/Hibernate queries, improving query performance by approximately 26%. Implemented JWT authentication and role-based access control using Spring Security, securing all application endpoints. Applied data structures, algorithms, and object-oriented design principles to build maintainable and scalable backend applications.