Aryan Kumar
Jalandhar, India
hello@ba3a.tech
+91-7765945165
ssh://ba3a.tech
https://ba3a.tech
ba3a
ba3a-g

Backend Engineer with experience of building scalable microservices and high-performance APIs in Go, Node.js, and Rust. Architected platforms serving 22k+ DAUs, reduced API latency by 43%, and shipped hackathon-winning decentralized applications.

Experience

Backend Intern
December 2024
 — 
April 2025
Engineer's Cradle
  • Refactored monolithic architecture into a PUB/SUB microservices pipeline, slashing P95 API latency by 43%.
  • Built a secure OAuth2-based authentication system with M2M + OIDC support, enabling scalable client integrations.
  • Implemented a Meilisearch-based service with RabbitMQ for async handling and Golang proxy for access control.
Creator
November 2022
 — 
March 2023
Check Valorant
  • Built and scaled a Valorant utility platform from scratch, growing to 22k DAUs and 2M+ monthly pageviews.
  • Designed a high-performance serverless backend with AWS Lambda, DynamoDB, and Cloudflare WAF, achieving sub-200ms response times.
  • Added features like passwordless auth and real-time notifications, maintaining uptime during viral growth spikes.

Projects

SoundPrint (ICP Hackathon Winner)
  • Built a decentralized NFT platform from Spotify data using Rust & Internet Identity, winning first place at the ICP Hackathon.
  • Implemented secure Web3 authentication and blockchain-based asset storage on the Internet Computer Protocol.
LPU WiFi Manager (llogin CLI)
  • Built a Rust CLI automating WiFi authentication for 1000+ users, reducing login friction significantly.
  • Designed credential management with multi-account support.
  • Open-source project with 25+ stars and 8+ contributors.
DDNS (mlcommunity.dev)
  • Created a community DNS platform providing free subdomains with automated GitOps provisioning.
  • Built IaaC system using JSON configuration for DNS records with Cloudflare integration.
  • Managed full-stack product development and community adoption.
TokenGate (OIDC Identity Provider)
  • Built a production-ready OIDC identity provider with OAuth2 compliance, and client management.

Leadership Experience

Web Lead
August 2023
 — 
August 2024
Google Developer Student Clubs - LPU
  • Led 15+ developers across 5+ projects, including an event management platform serving 1000+ students.
  • Delivered 10+ technical workshops on APIs, cloud deployment, and web frameworks to 75+ attendees each.
  • Managed cross-functional teams and technical mentorship programs.

Education

Lovely Professional University
August 2022
 — 
March 2026
Bachelor of Technology
Sainik School (Goalpara, Assam)
March 2014
 — 
March 2021
Secondary

Awards & Certifications

Awards:
Gold Medal - Operation Blackout CTF - 2025 
Gold Medal - ICP (SoundPrint Project) - 2025 
Silver Medal - Chakravyuh CTF - 2025
Certifications:
Google Cybersecurity Specialization 
RedHat System Administration II

Skills

Languages:
TypeScript, Golang, Rust, Python
Backend Frameworks / Libs:
Gin, Express, Hono
Databases:
PostgreSQL, DynamoDB, Redis, MongoDB, Elasticsearch
Tools & Platforms:
Docker, Postman, AWS, GCP, Cloudflare, Terraform, Kafka, RabbitMQ
Concepts:
Microservices, OAuth2, OIDC, Web3 (Solana, ICP), CI/CD, System Design, Low-Level Design (LLD)
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