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Aryan Kumar

Aryan Kumar

Backend Developer

Jalandhar, Punjab, In
+91-7765945165

Background


About

About

Highly motivated Backend Developer with a strong leader mindset and over 2 years of intensive experience in backend development, robust system architecture, and scaling user-centric platforms. Proficient in Golang, Node.js (Hono / Express), TypeScript, and Rust, with hands-on experience in PostgreSQL, MySQL, MongoDB, and various AWS and GCP services. Key achievements include architecting and scaling "Check Valorant" to 22k+ DAU and significantly improving API latency by 43% at Engineer's Cradle through microservices adoption. Proven ability in end-to-end tech product development from scratch (e.g., hackathon-winning SoundPrint leveraging blockchain principles with ICP) and strong understanding of Low-Level Design (LLD) principles.

Work Experience

Work Experience

  • Backend InternEngineer's Cradle

    Dec, 2024 - Apr, 20254 months

    Contributed to core backend development and system architecture improvements in a fast-paced environment.

    • Spearheaded the decoupling of monolithic infrastructure to a PUB/SUB model, resulting in a 43% improvement in API latency and laying groundwork for microservices architecture.

    • Constructed a comprehensive in-house authentication system, incorporating OIDC and M2M auth over OAuth2, adhering to industry best practices for secure product development.

    • Launched a robust search service utilizing Meilisearch, RabbitMQ for asynchronous processing, and a Golang-based authentication proxy for secure and efficient data retrieval.

  • FounderCheck Valorant

    Nov, 2022 - Mar, 20234 months

    Led end-to-end product development, architecture, and scaling of a user-centric platform in a startup environment.

    • Demonstrated founder mindset by conceptualizing, architecting, and scaling a Valorant companion platform from idea to 22k+ daily active users (100k+ MAU) and 2M+ monthly page views with near-instantaneous response times.

    • Devised a high-performance serverless backend using AWS Lambda, API Gateway, and DynamoDB, maintaining sub-200ms response times during peak viral growth.

    • Introduced advanced features including passwordless authentication and real-time notifications, ensuring platform security with Cloudflare WAF, showcasing full product lifecycle development.

Projects Experience

Projects Experience

  • SoundPrint (ICP Hackathon Winner)

    - Present

    • Developed an innovative web3 application generating unique NFTs from Spotify listening data, winning first prize at the Internet Computer Protocol hackathon, demonstrating full product development lifecycle.

    • Created a secure, decentralized NFT minting and management system using Rust and ICP, showcasing proficiency in backend system design.

    • Integrated Internet Identity Protocol for secure authentication, showcasing understanding of blockchain principles and decentralized systems.

  • TokenGate (OIDC Identity Provider)

    - Present

    • Planned and rapidly generated a minimalist OIDC-compliant identity provider in under 24 hours, featuring secure user authentication, OAuth 2.0 endpoints, and client management, highlighting rapid product development and LLD.

    • Authored a comprehensive authentication system with PostgreSQL for user/client data persistence, RESTful APIs for OAuth flow, and intuitive UI elements, demonstrating robust backend engineering.

  • First Principles Web Server (Golang)

    - Present

    • Defined and built a basic web server from scratch in Golang, gaining deep insights into HTTP protocols, handling requests, routing, and concurrent connections.

    • Produced a robust server structure demonstrating core principles of network programming and efficient resource management, contributing to a solid understanding of backend systems.

    • Enhanced understanding of low-level system interactions and performance optimization in backend development, directly applicable to building robust and scalable web-based applications.

  • LPU WiFi Manager (llogin CLI)

    - Present

    • Engineered a high-performance Rust CLI to automate WiFi authentication for 1000+ users, significantly reducing login times, showcasing practical product development.

    • Architected a secure credential management system with multi-account support and encrypted password storage, emphasizing secure system design.

    • Led an open-source project (22+ stars, 8+ contributors), demonstrating leadership and collaborative development.

  • DDNS (mlcommunity.dev)

    - Present

    • Created and maintained a community-driven DNS management platform providing free subdomains, acting as a full-stack product owner.

    • Planned an IaaC DNS system using declarative configuration (JSON) for various record types, showcasing system design and automation.

    • Streamlined a fully automated GitOps workflow for DNS provisioning via pull requests with validation and Cloudflare integration, reflecting CI/CD and distributed system principles.

Skills

Skills

  • Languages

    TypeScript

    Golang

    Rust

    Python

    C++/C

    SQL (PostgreSQL, MySQL)

    NoSQL (DynamoDB, MongoDB)

    JavaScript

  • Backend Frameworks / Libs

    Gin

    Express.js (Node.js)

    Hono

  • Databases / Stores

    PostgreSQL

    MySQL

    DynamoDB

    Redis

    MongoDB

    Meilisearch

    Kafka

    Elasticsearch

    RabbitMQ

  • Tools & Platforms

    Git

    GitHub

    Docker

    Postman

    AWS (Lambda, API Gateway, DynamoDB, S3)

    GCP

    ICP

    Cloudflare

    Firebase

    Terraform

    Bun

  • Testing

    Vitest

    Bun Test Runner

  • Concepts

    RESTful APIs

    Microservices

    Distributed Systems

    Serverless Architecture

    OAuth2

    OIDC

    Web3 (Solana Ecosystem)

    Blockchain (ICP)

    CI/CD

    GitOps

    System Design

    Low-Level Design (LLD)

    Scalability

    Performance Optimization

    Kafka

Education

Education

  • Bachelor of Technology, Bachelor, Lovely Professional University

    Aug, 2022 - Mar, 2026

  • Intermediate, Secondary, Sainik School (Goalpara, Assam)

    Mar, 2014 - Mar, 2021

Certificates

Certificates

  • Google Cybersecurity Specialization, Google on Coursera

    Issued on: Mar 01, 2025

  • Cloud Computing, NPTEL

    Issued on: Feb 01, 2025

  • RedHat System Administration II, RedHat

    Issued on: Oct 01, 2024

Awards

Awards

  • Gold Medal - Operation Blackout CTF , DriveDev

    Awarded on: Apr 01, 2025

  • Gold Medal - ICP (SoundPrint Project) , Internet Computing Protocol

    Awarded on: Mar 01, 2025

  • Silver Medal - Chakravyuh CTF , Lovely Professional University

    Awarded on: Mar 01, 2025

  • Bronze Medal - Concoction CTF , Lovely Professional University

    Awarded on: Nov 01, 2023

  • Zonal #3 - National Cyber Olympiad , Science Olympiad Foundation

    Awarded on: Mar 01, 2019

Volunteer Work

Volunteer Work

  • Web Lead, Google Developer Student Clubs - LPU

    Aug, 2023 - Aug, 2024

    Led technical initiatives and mentored student developers, fostering a collaborative environment for product development.

    • Led a team of 15+ student developers on 5+ projects, including an event management platform for 1000+ students, demonstrating leadership in tech product development.

    • Authored and delivered 10+ technical workshops on API design, cloud deployment, and modern web frameworks to 75+ attendees per session.

    • Gained experience in leadership, team and resource management, crucial for product delivery.