Suraj Kumar Singh
Hyderabad
Summary
Senior Java Spring Boot Developer with 4+ years of experience designing, developing, and mentoring in enterprise-grade backend systems. Specialized in building secure, high-performance microservices using Java (8→21), Spring Boot, and distributed architectures. Strong expertise in performance tuning, API design, caching, logging, and observability. Proven ability to modernize legacy systems, optimize microservices, and mentor engineers in industry-standard best practices.
Overview
4
4
years of professional experience
Work History
Java Spring Boot Developer
Prounce Solution
Hyderabad
05.2023 - Current
- Modernized enterprise systems from Java 8 → 21 and Spring Boot 2.x → 3.3.x with modular microservices architecture.
- Implemented authentication and authorization using Spring Security (JWT, OAuth2) and custom request interceptors.
- Enhanced system security through AES/RSA encryption-decryption for sensitive payloads and secure data flow.
- Developed performance-optimized APIs with distributed caching (Redis, Apache Ignite) and asynchronous processing.
- Configured observability stack with ELK, Prometheus, and Grafana for end-to-end log tracing and monitoring.
- Created a Common Service layer for reusable components and shared logic across microservices, improving maintainability.
- Automated CI/CD pipelines using Jenkins and Docker; deployed on AWS EKS with zero-downtime rollout.
- Collaborated in Agile teams to deliver high-quality, production-grade features focused on scalability and performance.
Java Trainer
editOneTheme / NareshIT
Hyderabad
11.2021 - 05.2023
- Trained and mentored batches of 50+ students in Core Java, Advanced Java, Spring Boot, and Microservices.
- Conducted live coding sessions and workshops on OOPs, Collections, Multithreading, Exception Handling, and JDBC.
- Delivered hands-on sessions on Spring Boot REST APIs, Dependency Injection, Security, and Hibernate/JPA.
- Guided end-to-end student project development from design to deployment following industry best practices.
Education
Master of Computer Applications (MCA) -
Osmania University
Hyderabad01.2022
Bachelor of Computer Applications (BCA) -
Mahatma Gandhi Kashi Vidyapith
Varanasi01.2019
Skills
- Java (8–21)
- SQL
- JavaScript
- Spring Boot
- Spring Cloud
- Spring Security
- Hibernate
- JPA
- Microservices
- RESTful APIs
- Modular Design
- API Gateway
- Event-Driven Systems
- JWT
- OAuth2
- AES/RSA Encryption
- API Signing
- Role-Based Access Control
- Redis
- Apache Ignite
- Kafka
- RabbitMQ
- AWS SQS/SNS
- ELK Stack
- OpenSearch
- Prometheus
- Grafana
- Sleuth
- Zipkin
- AWS (EC2, S3, RDS, Lambda, IAM)
- Docker
- Kubernetes (EKS)
- Jenkins
- Terraform
- Oracle
- MySQL
- PostgreSQL
- SQL Optimization
- GC Tuning
- Thread Optimization
- JProfiler
- JMeter
- IntelliJ IDEA
- Postman
- Git
- Jira
- Confluence
Accomplishments
- Reduced API latency by 65% through distributed caching using Redis and Apache Ignite.
- Improved transaction throughput by 40% via optimized SQL and asynchronous processing.
- Migrated enterprise systems from Java 8 → 21 and Spring Boot 2.x → 3.3.x.
- Enhanced API security with JWT/OAuth2 authentication, custom interceptors, and encryption filters.
- Designed centralized observability pipelines (ELK, Prometheus, Grafana) achieving 99.9% uptime.
- Created a Common Service module for shared logic, utilities, and security layers across microservices, reducing duplication by 30%.
- Mentored 50+ developers and students in Java, Spring Boot, and Microservices at NareshIT.
Additional Information
Strong focus on Security, Performance, and Observability as engineering pillars., Hands-on experience in full microservice lifecycle — design, develop, deploy, and monitor., Proficient in log analytics (OpenSearch, ELK), alerting, and debugging production issues., Contributor to CI/CD pipelines, reusable frameworks, and internal developer tools.
Selected Projects
- Compass (Government Financial System), Modernized a legacy SBA financial system to a microservices-based platform using Java 21 and Spring Boot 3.x., Security, Performance Optimization, Caching, Logging, Ticketing, Implemented multi-level approval workflow and financial flow from Formulation → Execution stages., Built centralized logging and audit pipelines using OpenSearch for financial transaction tracking., Created a Common Service module for shared APIs and security policies across multiple microservices., Developed financial reporting and analytics module to generate compliance-ready audit reports.
- Order Processing System, Developed fault-tolerant microservices using Kafka, Resilience4j, and AWS SQS/SNS., Implemented circuit breakers, retries, and health checks ensuring 99.9% system reliability.
- Greenfield Migration Project, Migrated a legacy monolithic system to microservices using Spring Boot 3.2, Docker, and AWS EKS., Set up Prometheus and Grafana dashboards for real-time service monitoring and alerts.
Core Skills
Java (8–21), SQL, JavaScript, Spring Boot, Spring Cloud, Spring Security, Hibernate, JPA, Microservices, RESTful APIs, Modular Design, API Gateway, Event-Driven Systems, JWT, OAuth2, AES/RSA Encryption, API Signing, Role-Based Access Control, Redis, Apache Ignite, Kafka, RabbitMQ, AWS SQS/SNS, ELK Stack, OpenSearch, Prometheus, Grafana, Sleuth, Zipkin, AWS (EC2, S3, RDS, Lambda, IAM), Docker, Kubernetes (EKS), Jenkins, Terraform, Oracle, MySQL, PostgreSQL, SQL Optimization, GC Tuning, Thread Optimization, JProfiler, JMeter, IntelliJ IDEA, Postman, Git, Jira, Confluence
Timeline
Java Spring Boot Developer
Prounce Solution
05.2023 - Current
Java Trainer
editOneTheme / NareshIT
11.2021 - 05.2023
Master of Computer Applications (MCA) -
Osmania University
Bachelor of Computer Applications (BCA) -
Mahatma Gandhi Kashi Vidyapith