Roshan Mishra

Backend Java Developer with 4+ years of experience building scalable, high-performance enterprise applications using Java 8/11, Spring Boot, Microservices, REST APIs, SQL, and distributed system design. Experienced in developing low-latency backend services, optimizing database performance, handling concurrent transactions, and building production-grade systems in banking and healthcare domains. Skilled in Spring Security, Hibernate/JPA, asynchronous processing, Docker, Kubernetes, AWS, and CI/CD pipelines.

Strong problem-solving skills with experience in debugging critical production issues, improving system reliability, and delivering scalable backend solutions.

Senior Software Engineer - Infosys

(2025-01)

• Designed and developed scalable RESTful microservices using Java 8, Spring Boot, and Hibernate/JPA for healthcare workflows, familiarity working with Kafka.
• Improved API performance by 35% through SQL query optimization, indexing strategies, pagination, batching, and reduction of redundant database calls.
• Implemented authentication and authorization using Spring Security, JWT, and OAuth2 for secure access management.
• Developed a python automation utility using Django to dynamically generate structured error reports from system logs and input datasets.
• Developed optimized SQL views and reporting datasets that significantly reduced Power BI report generation time.
• Collaborated in Agile development, code reviews, deployment activities, defect fixes, and production support.
• Diagnosed and resolved production issues related to API failures, database bottlenecks, and concurrency handling.
• Wrote unit and integration test cases using JUnit and Mockito for backend services.

Software Engineer - HSBC

(2022-06 - 2024-12)

• Designed and developed enterprise billing and reporting modules using Core Java, Spring Boot, Microservices and SQL for internal banking operations.
• Built backend functionalities for validating and processing high-volume external CSV datasets with downloadable report generation.
• Designed and developed REST APIs and implemented business logic for incremental and full data processing based on API responses across multiple application modules.
• Designed concurrent data-processing utilities using multithreading and asynchronous execution to improve throughput and reduce processing time.
• Diagnosed and fixed critical production issues involving memory leaks, connection pooling, and application performance bottlenecks.
• Optimized SQL queries and backend workflows resulting in improved application response time and operational efficiency.
• Followed secure coding standards and compliance practices aligned with enterprise banking and financial regulations.
• Participated in code reviews, release deployments, defect fixes, and production support activities in Agile environment.

Bachelor of Engineering (B.E.) - Mechanical - St. John College of Engineering, Mumbai (2020)