Saurab Bikram Sen

Full Stack Software Engineer

Polyglot engineer with 3+ years of experience architecting scalable backend systems, optimizing multi-tenant databases, and building robust APIs. Specializing in highly concurrent environments, strict data compliance, and Generative AI integrations.

LinkedIn Profile Pokhara, Gandakī, Nepal

Technical Arsenal & Competencies

Languages & Core

TypeScript Golang Java C++ C Rust C# PHP OOP / SOLID

Data Engineering & Infrastructure

PostgreSQL MongoDB Redis (Caching/PubSub) SQLite (Embedded) Query Optimization B-Tree Indexing HashiCorp Vault

Domains & Architecture

Generative AI Multi-tenant SaaS Architecture Role-Based Access Control (RBAC) In-App Purchase (IAP) Validation 3rd-Party API Integration Embedded Systems

Professional Experience

Sep 2022 - Present 3 yrs 9 mos

Full Stack Developer

Yarsa Labs
Pasal.com / Enterprise Inventory System

Role: Solo Developer | Architecture: Multi-tenant SaaS

  • Architected and developed a full-fledged multi-tenant inventory management system handling autonomous shop instances.
  • Engineered strict financial compliance features, successfully achieving IRD (Inland Revenue Department) verification for automated billing/invoicing directly from the software.
  • Integrated NCHL API services for direct and secure B2B supplier payment settlements.
  • Designed granular Role-Based Access Control (RBAC) and secure JWT-based authentication for dynamic staff permissions.
  • Implemented real-time infrastructure event notifications, utilizing a custom Telegram Bot API integration to alert staff on low-stock anomalies.
YarsaPlay
  • Engineered a highly scalable Tasks and Achievements engine processing daily, weekly, monthly, and yearly user milestones.
  • Optimized query performance to handle high-frequency reads/writes for real-time player task progression.
  • Authored comprehensive test coverage (unit and integration) ensuring 99.9% uptime across distinct micro-services.
PhotoMaker App Backend & YarsaBazar
  • Built a robust In-App Purchase (IAP) validation server tracking user tokens and consuming API quota limits.
  • Established secure server-to-server communication with Apple App Store and Google Play billing servers to enforce cryptographically secure receipt validation.
  • Deployed HashiCorp Vault for stringent secrets management and environmental variable injection.
  • Developed a high-throughput on-the-fly image manipulation and resizing microservice for YarsaBazar, minimizing CDN bandwidth costs.

Education & Licensure

Degree Academia

Bachelor in Software Engineering

Pokhara University School of Engineering

Completed rigorous foundational coursework covering System Architecture, Algorithms, Data Structures, and Advanced Computing concepts.

Licensure Professional

Registered Software Engineer

Nepal Engineering Council (NEC)

Certified Professional Licensure & National Engineering Accreditation, validating formal engineering competency and ethical software practice.