Ajay Kumar

I am a dedicated and results-oriented Java Developer with over 3 years of hands-on experience in designing, developing, and deploying robust backend systems and scalable microservices. My expertise spans across Java, Spring Boot, RESTful APIs, and cloud-integrated DevOps tools, enabling me to deliver high-performance software solutions across diverse industries.

Throughout my career, I’ve demonstrated a strong ability to understand business needs, architect reliable systems, and write clean, maintainable code. I’ve worked with international clients as a freelancer on Upwork, where I resolved complex backend issues, optimized e-commerce platforms, and led API development—resulting in significant improvements in client revenue and platform performance.

Previously at NXPRO and Lucrortech, I contributed to the full software development lifecycle—developing secure payment integrations, automating billing systems, conducting rigorous testing, and mentoring junior developers. I’ve also implemented tools like Google Analytics, integrated third-party services, and maintained high unit test coverage to ensure production-grade stability.

With a solid foundation in Agile practices, DevOps principles, and secure coding standards, I bring a holistic approach to backend development, balancing performance, maintainability, and scalability. My work is driven by a passion for problem-solving, client satisfaction, and continuous improvement.

I hold a Graduate Certificate in DevOps for Cloud Computing from Lambton College, Toronto, Ontario, where I gained advanced knowledge in cloud-based infrastructure, continuous integration/continuous deployment (CI/CD), and automation practices using modern tools like Docker, Kubernetes, and Jenkins. This program has strengthened my expertise in building scalable, secure, and efficient systems tailored for modern cloud environments.

Additionally, I earned a Bachelor of Technology in Computer Science from Deenbandhu Chhotu Ram University of Science and Technology, India. This comprehensive academic foundation provided me with a strong understanding of core computer science principles, software development methodologies, and programming languages such as Java, C++, and Python—skills that continue to support my professional growth and backend development capabilities.

Together, these qualifications have equipped me with both the theoretical grounding and the practical skills required to succeed in fast-paced, technology-driven environments.