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Santosh Kafle

Backend Developer | DevOps Engineer

santoshkafle.dev@gmail.com|linkedin.com/in/santosh-kafle-dev|github.com/santosh-kafle|kaflesantosh.com.np|Kathmandu, Nepal

Summary

Backend Developer and DevOps Engineer with hands-on experience building high-performance e-commerce platforms, RESTful APIs, and containerized environments. Skilled in Laravel, NestJS, Express.js, PostgreSQL, Docker, and Linux server administration. Proven track record of improving query performance by 70%, achieving sub-300ms API response times, and maintaining zero security breaches across production systems.

Technical Skills

Languages: PHP, JavaScript, TypeScript

Frameworks: Laravel, NestJS, Express.js

Databases: PostgreSQL, MySQL, MongoDB, Redis, Meilisearch

DevOps & Tools: Docker, Linux, Bash Scripting, Nginx, CI/CD, GitHub Actions, AWS, Server Security, Cloudflare DNS, Incident Response, Git, Composer, Postman, DataGrip, PhpStorm

Other: RESTful APIs, Microservices, OAuth2, JWT, OWASP Security Practices, Clean Architecture, Design Patterns, SOLID Principles, Database Optimization

Work Experience

Backend Developer – Quark InfoTech, Lalitpur

Apr 2025 – Present

  • Built high-performance e-commerce backends (zolpastore.com, ultima.com.np, singingbowlvillagenepal.com) serving thousands of daily users
  • Architected RESTful APIs with Redis caching and Meilisearch, achieving sub-300ms response times
  • Implemented OAuth2/JWT auth with RBAC, automated 2FA emails, and configured Cloudflare DNS (SPF, DKIM, DMARC) for strict deliverability
  • Migrated MySQL → PostgreSQL, improving query performance by 70% through indexing and optimization
  • Led incident response on a compromised React SSR server: removed cryptocurrency miner, rotated env variables, and hardened the server

Backend Developer Intern – Quark InfoTech, Lalitpur

Jan – Mar 2025

  • Developed RESTful microservices with Laravel and Node.js using JWT auth and rate limiting, serving 250+ daily API consumers
  • Wrote comprehensive API documentation covering 15+ endpoints, reducing onboarding time for frontend team
  • Shipped production features for e-commerce backends including product filtering, pagination, and order processing workflows

Projects

zolpastore.com

Laravel, Redis, Meilisearch, PostgreSQL, MySQL, Docker

E-commerce platform with Redis caching, Meilisearch search, OAuth auth, event-driven architecture

ultima.com.np

PHP, Laravel, MySQL, Docker, GETPAY

E-commerce backend with optimized APIs, GETPAY payment integration, high-traffic infrastructure

singingbowlvillagenepal.com

PHP 8.4, Laravel 12, PostgreSQL, GETPAY

E-commerce site built with latest PHP & Laravel, migrated MySQL → PostgreSQL

iteam.com.np

Laravel, PostgreSQL, Docker, Deployment

Supported setup, planning, and initial-phase backend work; Docker-based environment, database provisioning

Education

Bachelor's of Computer Applications (BCA) – Reliance College, Kathmandu

2020 – 2025

High School Diploma, Computer Science – Reliance International Academy

2018 – 2019