ARJIT UPADHYAY

Results-driven Java developer with over 4 years of experience, specializing in microservices architecture and AWS Lambda. Achieved a 60% performance improvement by optimizing microservices using SQS listeners and Lambda. Proficient in MongoDB and BSON documentation for real-time data aggregation, report generation, and caching. Successfully integrated multiple B2B, B2C, and external client APIs, leading to end-to-end onboarding and streamlined operations. Experienced in MySQL for database management, Apache Kafka for real-time data streaming, and Kibana for monitoring and visualizing application performance. Adept in using Hibernate for efficient ORM management. Strong expertise in stakeholder engagement and cross-functional collaboration to deliver impactful solutions. Authentication Mechanisms: OAuth, Bearer Token, API Key, JWT (JSON Web Token), SSO (Single Sign-On), MFA (Multi-Factor Authentication)

• Industrial Certification in BEL, http://www.bel-india.in, Completed industrial project in Bharat Electronics Limited as part of internship.
• Core Java, Advance Java Certificate, http://www.Incapp.in, Java Core and Advance Java(J2EE) Completion Certificate with hands-on Project from Incapp Institution, Greater Noida.

• Contributed in all phases of development life cycle (SDLC Process).
• Requirement Gathering: Involved in requirement gathering along with Project Manager to understand functional requirements from business users.
• Feasibility study: Involved in discussion with project manager to finalize the scope, support, feasibility and schedule of modules based on requirement.
• Design: Involvement in discussion with project lead to help and develop the Functional logic of the modules, database tables with complete input and outputs of every module.
• Coding: Developed the assigned modules as per the design and following all predefined coding guidelines.
• Testing: Interaction with testing team to understand and complete the bug fixing process.

Proship (Shipment Management System) 

PROZO - 2024-Current

Role: Developer | Technologies: Java, Spring Boot, Hibernate, JPA, RESTful APIs, Microservices, MongoDB, BSON, BigQueue, Disk Storage

• Developed and maintained Proship, a shipment management system for managing order processing and tracking along with third party complete api integration.
• Built and deployed scalable microservices using Spring Boot to handle order allocation, tracking, and delivery management.
• Utilized MongoDB with BSON documentation for efficient data storage and real-time data aggregation.
• Implemented BigQueue for large-scale data management using disk-based storage to ensure reliable data processing.
• Enhanced shipment tracking accuracy and reduced processing time by 40% through optimized data pipelines.
• Developed robust data management solutions, ensuring accurate shipment records and operational data using MongoDB.
  

 AWS Lambda Microservices Optimization

Role: Developer | Technologies: AWS Lambda, Amazon SQS, API Gateway, Java, Spring Boot, MongoDB, AWS CloudWatch Logs

• Designed and implemented serverless microservices using AWS Lambda to replace traditional SQS listeners, reducing server Load by 20%.
• Integrated Amazon SQS for asynchronous task management, ensuring seamless data processing.
• Monitored and debugged Lambda functions using AWS CloudWatch Logs, identifying and resolving performance bottlenecks.
• Achieved a 60% performance improvement by reducing response time and enhancing data processing efficiency.
• Maintained real-time data processing pipelines using MongoDB for storage and retrieval.
• Developed robust error-handling mechanisms and ensured end-to-end monitoring using CloudWatch Logs for detailed insights.

Ecom Express  -June 2021-Dec 2023

 MDM (Master Data Management) 

Role: Developer | Technologies: Java, Spring Boot, Hibernate, JPA, RESTful APIs, Microservices, Kafka

• Developed and maintained a Master Data Management (MDM) system for one of the leading logistics companies.
• Contributed to the DIY module enabling customer onboarding within minutes.
• Implemented a scalable microservices architecture to handle data requests across various logistics systems.
• Performed logical data operations and integrated data pipelines for real-time data processing.
• Designed and enforced role-based access controls (RBAC) for data visibility and editing using MDM.

 Single Sign-On (SSO) 

Role: Developer | Technologies: Java, Spring Boot, Hibernate, JPA, RESTful APIs, Microservices

• Developed and implemented an SSO system providing authentication and authorization using Multi-Factor Authentication (MFA).
• Managed user roles, permissions, login activity, audit reports, and user history through SSO.
• Ensured secure API access by intercepting and validating requests based on user roles and permissions.
• Enhanced application security and user experience through centralized authentication and seamless access management.

 Siddhi-Data-Scheduler

Role: Developer | Technologies: Java, Spring Boot, Hibernate, JPA, RESTful APIs, Microservices

• Built a robust data scheduling system to run CRON jobs and fetch data from the HRMS portal.
• Processed and stored data into the organization's databases using dual database connection configurations.
• Implemented Aspect-Oriented Programming (AOP) for dynamic validation and authorization of API requests.
• Optimized data handling with an efficient scheduling mechanism to ensure accurate and timely data updates.