Pankaj Kumar

Senior Java & Spring Boot Developer

"Crafting Robust Solutions with 9+ Years of Java, Spring Boot, and Hibernate Expertise."

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About Me

Welcome! I'm Pankaj Kumar, a passionate software developer with over 9 years of experience specializing in building scalable and efficient enterprise applications. My journey into software development began with a fascination for problem-solving and a drive to create impactful solutions.

I possess deep expertise in Java, Spring Boot, and Hibernate, focusing on designing, developing, and deploying robust, high-performance backend systems. I thrive on architecting clean, maintainable code and optimizing application performance to deliver seamless user experiences.

Beyond the code, I'm committed to continuous learning and contributing to the tech community. I believe in the power of well-designed systems to solve real-world challenges.

Skills & Technologies

Core Backend

  • Java (JDK 8+, Multithreading, Concurrency)
  • Spring Boot (Spring Data JPA, Spring Security, Spring MVC, Microservices)
  • Hibernate / JPA
  • Maven, Gradle

Databases

  • SQL (PostgreSQL, MySQL, Oracle)
  • NoSQL (MongoDB)

Cloud & DevOps

  • AWS (EC2, S3, RDS, Lambda)
  • Docker
  • Kubernetes
  • Git / GitHub / GitLab
  • CI/CD (Jenkins, GitLab CI, GitHub Actions)

Other Relevant Skills

  • RESTful APIs, GraphQL
  • System Design & Architecture
  • JUnit, Mockito
  • Mentorship & Code Review

My Projects

Enterprise Order Management System

Developed a scalable backend for an order management system, handling high transaction volumes and complex business logic.

Technologies: Java, Spring Boot, Hibernate, PostgreSQL, RESTful APIs

My Role: Led backend development, designed database schema, implemented core business logic and integrations.

GitHub Repo

Microservices-based User Authentication

Designed and implemented a secure, microservices-based authentication and authorization service.

Technologies: Java, Spring Boot, Spring Security, JWT, MongoDB, Docker

My Role: Architected the microservice, developed authentication endpoints, managed security configurations.

GitHub Repo

Real-time Data Processing Dashboard

Built a backend service for real-time data aggregation and processing, feeding a dynamic dashboard.

Technologies: Java, Spring Boot, Apache Kafka, Redis, MySQL

My Role: Developed data ingestion pipelines, implemented data processing logic, ensured data consistency.

GitHub Repo

My Experience

Senior Software Engineer | [Previous Company Name]

[Start Date] – [End Date]

  • Led the design and development of critical backend modules using Java, Spring Boot, and Hibernate, significantly improving system performance by X%.
  • Mentored junior developers, conducted code reviews, and ensured adherence to best practices in a fast-paced Agile environment.
  • Contributed to architectural decisions for scalable microservices, ensuring system reliability and maintainability.
  • Implemented robust RESTful APIs and integrated with various third-party services.

Software Developer | [Earlier Company Name]

[Start Date] – [End Date]

  • Developed and maintained features for high-volume applications, utilizing Java and Spring Framework.
  • Optimized database queries and refined ORM mappings with Hibernate to enhance application efficiency.
  • Collaborated with cross-functional teams to define requirements and deliver solutions on schedule.

Education

[Your Degree] | [Your University Name]

[Graduation Date]

[Relevant coursework or academic achievements, if applicable]