VICKY ANAND SINGH - Senior Java Backend Developer - Grappus Technologies Pvt Ltd

Summary

Results-driven Backend Developer with over 5 years of experience designing and implementing scalable, high-performance distributed systems using Java and Spring Boot. Strong expertise in microservices architecture, Kafka-based event-driven systems, and REST API design, complemented by a solid background in system design and asynchronous processing. Proficient in performance optimization techniques, including query tuning and indexing for high-throughput applications, while ensuring reliability through effective debugging, code reviews, and system monitoring. Adept at collaborating with stakeholders to analyze requirements and deliver robust backend solutions that meet business needs.

Overview

5

years of professional experience

Work History

Senior Java Developer / Backend Developer

Grappus Technologies Pvt Ltd

02.2021 - Current

Telecom Platform – Thunder (Microservices Architecture)

Dec 2024 – Present

Built microservices for SIM lifecycle, Plan, Account (CSR), Inventory & Order Management
Implemented Kafka-based async workflows for bulk telecom operations
Improved scalability using event-driven communication and loose coupling
Integrated with external systems (BSS, OCS)
Contributed to microservices architecture and system optimization

Telecom Platform – AMX & AONE (Legacy Systems)

Oct 2023 – Nov 2024

Developed backend modules for Account, Inventory, Order, Rule Engine, Logging

Maintained and enhanced systems ensuring stability and performance

Doing transition to microservices architecture

SITA – Destination Management System (Travel Platform)

Feb 2021 – Sep 2023

Developed backend for itinerary planning, hotel search, and booking workflows

Integrated Elasticsearch for advanced filtering (price, ratings, amenities)

Built scalable REST APIs for dynamic travel customization

Improved search performance and response time

Education

Bachelor of Engineering - Electrical & Electronics

Oriental Institute of Science And Technology

Bhopal, India

05-2019

Skills

Java programming (versions 8, 21)
Experience with JPA and Spring Boot
Experience with relational databases: MySQL and PostgreSQL

Tools: Git, Postman, Confluence
Kafka messaging expertise
Search & Cache: Elasticsearch, Redis

Timeline

Senior Java Developer / Backend Developer

Grappus Technologies Pvt Ltd

02.2021 - Current

Bachelor of Engineering - Electrical & Electronics

Oriental Institute of Science And Technology