Santu Kumar

Product Engineer

Mumbai, Maharashtra, India1 yr 8 mos experience

Key Highlights

Developed secure document vault with AES-256 encryption.
Improved backend data throughput by 30%.
Top 10.2% on LeetCode in data structures and algorithms.

Stackforce AI infers this person is a Full-Stack Developer with a focus on secure software systems in the SAAS industry.

Contact

krczsantu@gmail.com LinkedIn

Skills

Core Skills

ReactSpring Boot

Other Skills

Core JavaReact.jsMySQLCryptography BasicsMaterial UITailwind CSSWeb PagesContent Management Systems (CMS)HTMLFirebaseCloudinaryJSON Web Token (JWT)JSON ServerJavaScriptObject-Oriented Programming (OOP)

About

Final-year Computer Science student at IIT Patna and Full-Stack Developer focused on building secure and scalable software systems. Developed client-side AES-256 encryption for SecureMyDocs at GUVI, built a role-based Ticketing System as part of a technical hiring assessment for Leap Finance, and improved backend data throughput by 30% in Xzal. Also developed an accessibility focused password validation system for the HENNGE Frontend Challenge. Strong in Java, data structures, and algorithms (Top 10.2% on LeetCode). Seeking a 2026 Summer Internship in software engineering.

Experience

1 yr 8 mos

Total Experience

10 mos

Average Tenure

Current Experience

Hackerrank

Campus Crew Member

Jan 2026 – Present · 4 mos · India

Selected as HackerRank Campus Crew Member at IIT Patna after a competitive interview process.
Responsible for promoting coding culture, organizing events, leading initiatives, and helping peers improve problem-solving and competitive programming skills.

Hcl guvi

Full Stack Developer Intern

Jun 2025 – Sep 2025 · 3 mos

Developed SecureMyDocs, a secure document vault using React, Spring Boot, and MySQL with AES-
256 encryption and OTP-based verification.
Designed and implemented RESTful APIs with JWT authentication and role-based access control.
Optimized database queries and backend logic, improving response time by 30%.

Core JavaReact.jsReactSpring Boot