Ujjwal Kumar

Software Engineer

Noida, Uttar Pradesh, India1 yr experience

Key Highlights

LeetCode Knight with 1900+ rating.
Expertise in backend engineering and data structures.
Delivered scalable UI components for high-traffic applications.

Stackforce AI infers this person is a Backend-focused Software Engineer with a strong emphasis on performance and system design.

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Skills

Core Skills

Data StructuresAlgorithmsReact.jsWeb Development

Other Skills

C++Express.jsDistributed SystemsBackendAPI DesignAuthenticationAuthorizationDatabase indexingSystems DesignBack-End Web DevelopmentCascading Style Sheets (CSS)JavaScriptLow LatencyGitGitHub

About

I don’t just write code I visualize how it behaves. Execution paths, memory flow, branching, and bottlenecks are things I reason about before the code exists.I am a Software Engineer and LeetCode Knight (1900+ rating) with strong foundations in C++, backend engineering, and data structures & algorithms, having solved 800+ DSA problems across competitive platforms. I’ve trained myself to think like a compiler: eliminate unnecessary work, optimize every execution path, and build systems that are fast, predictable, and clean. Through projects like DocSeek and my work at AAR Infotech, I’ve learned to engineer with intent where correctness, performance, and clarity matter more than complexity. If you’re looking for someone who simply codes, you’ll find many. If you need someone who understands the system before building it, that’s where I stand.

Experience

1 yr

Total Experience

1 yr

Average Tenure

1 yr

Current Experience

Self-employed

DSA Mentor — Self-Organized Sessions

Apr 2025 – Present · 1 yr · India · Remote

Conducted daily DSA sessions for 4-5 peers, improving problem-solving speed and interview readiness.
Organized outreach via Google-based form, receiving 70 responses from Tier 1 & 2 students.
Designed practice roadmaps, mock tests, and guided peers on DSA patterns and algorithms.

C++Data StructuresAlgorithms