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Full-Stack Software Developer with Spring Boot expertise

Location:
Kolkata, West Bengal, India
Posted:
February 16, 2026

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Resume:

Rohan Singh

India

+918********* # **************@*****.*** ï www.linkedin.com/in/rohansingh8 Portfolio Summary

Highly motivated Software Developer skilled in building scalable applications using Spring Boot and PHP. Experienced in developing REST APIs, working in Agile teams, and integrating AI solutions. Quick learner with strong problem-solving and debugging skills.

Experience

INNORAFT (Drupal, PHP, Spring Boot, Kafka, MySQL, Docker, AWS) (January 2023 – Present) Software Developer Kolkata, India

• Built highly reusable components, improving development efficiency by 40%, streamlining feature integration and ensuring timely delivery.

• Optimized core system architecture for a financial publishing firm, improving performance by 40% and reducing downtime by 15%, ensuring scalability in an agile, containerized environment.

• Designed and engineered a scalable platform under RTE Act (2009), tested to handle data for 500k+ students and 50K+ schools, ensuring high performance, reliability, and efficiency.

• Automated bulk user data migration for 10K+ users, enabling efficient reconciliation from CSV files and improving processing speed by 60% through batch processing and automated scheduling.

• Developed a scalable notification system, automating email and SMS alerts, reducing manual effort by 80%, and ensuring real-time notifications without causing performance bottlenecks.

• Designed, developed and validated secure REST API with OAuth 2.0 authentication for seamless integration, enabling secure data transmission, execution of back-end workflows, and delivery of structured response.

• Troubleshoot and optimized content management dashboards as part of performance optimization, improving efficiency by 50% and resolving critical issues.

• Successfully set up continuous integration and continuous deployment (CI/CD) pipelines for multiple environments using Jenkins streamlined development workflows by 20%. Technical Skills

Languages: Java, JavaScript, SQL, Python, PHP

Web Technologies/Framework : Drupal 8/9/10, Spring Boot, Microservices, REST APIs, ReactJs, PostgreSQL, Kafka, JSON

Developer Tools: Linux, Git, AWS, Maven, Hibernate, CI/CD Pipeline, Docker, Jenkins Projects

ShopSphere Java, Spring Boot, Hibernate, Junit, Maven 08 2022 - 09 2022

• Built ShopSphere, an e-commerce web application with Spring Boot, featuring cart management, user profiles, and admin controls.

• Hands-on design and coding of admin panel for managing product listing, updates, and deletions.

• Designed a dedicated offers section to display discounts, boosting user engagement and sales. RecipeRunner HTML5, CSS3, JavaScript, Python, Flask, Postman. 03 2023 - 04 2023

• Developed web app for recipe suggestions based on user-uploaded food images, utilizing image recognition with ML models (LogMeal API) and personalized recipe generation (OpenAI API).

• Written backend logic to process data efficiently, ensuring performance and scalability. Education

Calcutta Institute of Engineering And Management 2019 – 2023 Bachelor of Technology, CSE - CGPA - 9.01/10 Kolkata, India Achievements And Certifications

• Solved 200+ problems on LeetCode

• CodeChef – 3* (max)

• Credited with 14+ Open Source Contributions on Drupal.org

• Fundamentals of Database Engineering – Udemy

• Java & Spring Boot – Udemy

• Advanced JavaScript – Sololearn



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