Backend Engineer with 4 years of experience building scalable, cloud-native microservices and distributed systems using Java, Python, and PHP.
I specialize in high-performance backend systems, asynchronous processing, and event-driven architectures using Kafka, AWS, and Elasticsearch.

Currently working at SHL India Pvt. Ltd, delivering production-grade systems that improve performance, scalability, and cost efficiency.

Languages

• Java, Python, PHP

Frameworks

• Spring Boot, Spring Security, Spring MVC, Hibernate
• Flask, FastAPI

Cloud & DevOps

• AWS (ECS, ECR, SQS, AppConfig)
• Docker, Bamboo, Git
• Apache Kafka

Databases

• MySQL, SQL Server
• Aerospike, Elasticsearch

Software Engineer — SHL India Pvt. Ltd (Jul 2023 – Present)

• Reduced API response time by 30% using caching (Memcached / Redis)
• Designed asynchronous scoring microservices (Java & Python) cutting processing time by 67%
• Built Kafka-based centralized logging pipeline, reducing infra cost by 23%
• Scaled Python services to handle 100 concurrent requests in under 2 seconds

Associate Software Engineer — SHL India Pvt. Ltd (Jun 2021 – Jun 2023)

• Implemented JWT-based authentication for secure APIs
• Built CI/CD pipelines (Bamboo) reducing release cycles by 30%
• Migrated 10M+ records using multithreaded Python pipelines
• Dockerized applications and deployed on AWS ECS

Inventory Management System

• JWT-based authentication
• Elasticsearch-powered search
• MySQL + NoSQL integration
• Built using Spring Boot & Spring Security

Sustained Attention Detection (Research)

• EEG signal processing using MNE Python
• Feature extraction using FFT
• Neural network models with Keras
• Published on IEEE Xplore

🔗 https://ieeexplore.ieee.org/document/9752135

• Backend Engineering roles (Java / Python)
• Distributed systems & microservices
• High-scale backend & system design discussions

📫 Reach me at

• LinkedIn: https://www.linkedin.com/in/ajay-arora-b082651a6/
• Email: aroraajay0511@gmail.com