Open to opportunities

Alfaj Khan

@alfajkhan

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Java Spring Boot developer delivering secure, scalable backend systems and API excellence.

India

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What I'm looking for

I seek backend roles building scalable, secure APIs and microservices in Agile teams, with opportunities for performance optimization and cloud-native deployment.

I am a results-driven Java Spring Boot developer with over 3.10 years of experience building secure, high-performance backend systems for enterprise applications.

I design and implement RESTful APIs, microservices, and OAuth/JWT-based security using Spring Boot, Spring Security, Spring Data JPA, and Hibernate, and I have improved backend efficiency by up to 30% on production projects.

I thrive in Agile teams, contribute to API documentation and testing (Swagger/OpenAPI, Postman), and focus on maintainable architecture, performance tuning, and cross-team collaboration to deliver reliable solutions.

Experience

Work history, roles, and key accomplishments

Current

Java Spring Boot Developer

Current

Cognizant

Feb 2024 - Present (1 year 11 months)

Contributed to a large-scale business insurance platform by designing high-performance RESTful APIs with Spring Boot and Spring Data JPA, implemented OAuth2/JWT security, and reduced manual processing turnaround time by ~30%.

Java Spring Boot Spring Security OAUTH2 RESTful APIs Postman Microservices

Associate Software Engineer

Tech Mahindra

Jul 2021 - Jun 2023 (1 year 11 months)

Engineered scalable RESTful APIs using Java and Spring Boot, optimized MySQL/PostgreSQL schemas and queries, and implemented OAuth2/JWT security to support enterprise-grade applications and improve performance and stability.

Java Spring Boot Hibernate MySQL PostgreSQL RESTful APIs OAUTH2 JWT Agile Performance Tuning

Education

Degrees, certifications, and relevant coursework

Shivaji University

Bachelor of Engineering, Computer Science and Engineering

2013 - 2018

Grade: 64.00

Completed a Bachelor of Engineering in Computer Science and Engineering with a GPA of 64.00, covering core subjects in computing and software engineering.