Open to opportunities

Avtar Singh

@avtarsingh2

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Full-stack software engineer building secure, real-time web apps with React, Node, Spring Boot, and PostgreSQL.

India

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What I'm looking for

I’m looking for a team where I can own full-stack features end-to-end—secure REST APIs, real-time experiences, and scalable deployments—while growing into distributed systems and microservices engineering.

I’m a Full Stack Software Engineer who ships production-grade web applications end-to-end, delivering “6+ end-to-end projects across the full software development lifecycle” — from “REST API architecture and JWT authentication” to “real-time features with Supabase.” I build scalable, secure, and maintainable systems using React.js, Next.js 14, Node.js/Express.js, Spring Boot, and PostgreSQL, with deployments on Vercel, Render, and Railway.

I focus on correctness and security at every layer: atomic database logic, race-condition prevention, and strong auth/authorization. For example, in SkyBook I engineered atomic PostgreSQL RPC functions for booking, implemented Row Level Security policies so users access only their own bookings, and integrated Supabase Realtime for live seat availability. I’m currently deepening expertise in “distributed systems and microservices,” while pursuing B.Tech CSE at Chandigarh University.

Experience

Work history, roles, and key accomplishments

Software Development Intern

Chandigarh University

Jun 2024 - Jul 2024 (1 month)

Completed a 2-month software development internship applying data structures and algorithmic problem-solving in Java to practical programming modules. Strengthened time-complexity analysis and data-structure implementation skills supporting backend-focused engineering work.

Java Data Structures Algorithms Algorithm Design Problem Solving

AI/ML Intern

Teachnook

Jan 2023 - May 2023 (4 months)

Completed a 5-month AI/ML program with Teachnook (in collaboration with IIT Roorkee Cognizance'24), covering core ML concepts and real-world AI applications. Built and evaluated supervised learning models using classification and regression techniques on real-world datasets.

Python Machine Learning Supervised Learning Classification regression Model Evaluation

Education

Degrees, certifications, and relevant coursework

Chandigarh University

Bachelor of Engineering, Computer Science Engineering

2023 -

Grade: CGPA: 6.9/10

Activities and societies: Relevant coursework includes Data Structures & Algorithms (Java), DBMS, Operating Systems, Computer Networks, OOP, Theory of Computation, Software Engineering, and System Design.

Pursuing a B.E. in Computer Science Engineering with a CGPA of 6.9/10, covering core topics including data structures, DBMS, and system design.