Official Curriculum Vitae
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LEAV SIS

Software Developer • Computer Science • Founder of LS Tech Cambodia

Phnom Penh, Cambodia
sisleav.dev@gmail.com
https://lstech.com.kh

Accomplished software engineer and technology entrepreneur with 5+ years of production experience architecting scalable backend systems, high-throughput RESTful APIs, and modern responsive web applications. Founder of LS Tech Cambodia, specializing in Laravel, cloud workflows, relational database optimization, and high-performance glassmorphic UI design.

Professional Experience

Founder & Lead Software Architect — LS Tech Cambodia

Jan 2023 — Present

Founded and lead LS Tech Cambodia, an engineering studio creating bespoke digital platforms, cloud integrations, and enterprise software. Directing architecture, product strategy, and technical delivery.

  • Delivered 20+ production web applications and SaaS tools with 99.9% uptime record.
  • Engineered custom dual-currency payment gateway integrations for local banking infrastructure.
  • Mentored and guided junior developers on clean architecture, automated testing, and CI/CD pipelines.
Laravel Vue.js MySQL Docker Ubuntu Redis AWS

Senior Full-Stack Software Developer — InnovateTech Solutions

Mar 2021 — Dec 2022

Spearheaded backend architecture and API integrations for enterprise logistics and customer management systems across the ASEAN region.

  • Refactored legacy monolithic applications into modular Laravel service architectures, cutting response latency by 45%.
  • Implemented comprehensive automated test suites increasing test coverage from 20% to 85%.
  • Designed multi-tenant database partitioning strategies for enterprise clients.
PHP Laravel React PostgreSQL Docker Nginx Git

Software Developer — CyberNet Solutions

Jan 2020 — Feb 2021

Developed and maintained customer-facing web applications, administrative dashboards, and database schemas.

  • Built 12+ responsive portals with clean UI/UX and mobile-optimized interfaces.
  • Optimized MySQL relational queries and indexes to handle high concurrent traffic spikes.
PHP Laravel JavaScript MySQL CSS3 Linux

Education

Royal University of Phnom Penh (RUPP)

Bachelor of Science (B.Sc.) in Computer Science & Software Engineering

2016 — 2020

Certifications & Accreditations

Docker & Containerization Specialist
Linux Foundation • 2023
AWS Certified Cloud Practitioner
Amazon Web Services • 2023
Laravel Certified Professional Developer
Laravel Certification Program • 2022
Meta Frontend Developer Professional Certificate
Meta • 2022

Technical Competencies

Backend Architecture

PHP & Laravel 11/12 RESTful API Engineering Authentication & OAuth2 Asynchronous Queues & Jobs

Frontend Engineering & UI/UX

Modern JavaScript / ESNext Vue.js & React Frameworks Glassmorphic & Responsive CSS Alpine.js & Blade Components

Database & Storage

MySQL / MariaDB Optimization PostgreSQL & JSON Queries Redis In-Memory Caching

DevOps, Cloud & System Administration

Docker & Containerization Linux Server Administration (Ubuntu) CI/CD Pipelines & Git Workflows Nginx Reverse Proxy & SSL