Experience

  • Full Stack Data Scientist Level 2 — Helios Artificial Intelligence, USA

    02/2023 - Present

    • Leads the development of cutting-edge AI models and drives solutions to solve complex business challenges in Agriculture.
    • Develops Reinforcement Learning model to predict agricultural commodity risk and prices.
    • Improves Climate risk indicators such as weather risk, and natural disaster risk.

  • Graduate Research Assistant, Commonwealth Cyber Initiative (CCI), Arlington, VA — Virginia Tech, USA

    02/2023 - Present

    • Conducts extensive literature reviews and research, analyzes large datasets, and writes academic papers for peer-reviewed journals in water systems.
    • Collaborates with researchers and stakeholders (Deloitte, AlexRenew) to develop AI models and algorithms for optimizing water quality and security.
    • Co-builds a cyber-physical testbed from the ground up, incorporating physical water topologies and real-time sensors for simulating real-world water/agriculture systems.

  • Software Engineer — Vtech Co., Ltd, Cambodia

    08/2021 – 06/2022

    • Led a team of five engineers to build an online payment and payout solution by aggregating APIs with multiple third-party payment gateways using NestJS, PostgreSQL, and RabbitMQ.
    • Facilitated daily stand-up meetings, sprint planning, sprint demos, and sprint retrospectives.
    • Collaborated with stakeholders to define scope and deliverables and ensured project alignment with goals.
    • Created CI/CD pipelines and set up DEV/STAGE/LIVE environments.
    • Reviewed and minimized technical debt in the codebase.
    • Built tracking for app installation analytics via deep-links and app user interaction trends using NestJS, PostgreSQL, and Redis.
    • Optimized heavy load queries in metrics analytics from a 10M record database by caching and summarizing data, resulting in a 50% reduction in response time.
    • Reduced the total build and delivery pipeline in CI/CD automation by 25% by refactoring build scripts.
    • Improved API throughput in event tracking from 100 to 350 queries per second.

  • Software Solution Architect — Dynamic Technologies, Cambodia

    01/2021 – 07/2021

    • Scouted new technologies viable for business.
    • Produced architectural system designs, documentation, and implementation for Open Banking.
    • Conducted Business Process Domain (BPD) analysis to digitalize the payroll process for a company with over 2,000 workers.
    • Helped to explain technical aspects of high-level concepts.
    • Eased communication between engineers and non-technical teams.

  • Web and Mobile App Developer — IDP Education Cambodia, Cambodia

    06/2019 – 12/2020

    • Supported technical operations and maintained existing projects, continuously improving application performance.
    • Designed, maintained, and optimized data infrastructure for data collection, management, transformation, and access.
    • Developed an article submission management portal for requesting to post articles on the school website.
    • Developed and designed an exam management system, a platform to create questions and answers for exams.

  • Electronic System Engineer — Automation Advance Technology Co., Ltd, Cambodia

    11/2018 – 06/2019

    • Commissioned Extra Low Voltage Systems, designed work plans, and anticipated problems.
    • Engineered and implemented access control systems, intercom systems, IoT, Intrusion systems, energy monitoring systems, and car parking guidance systems. Integrated access control systems with elevator systems, using dry contact and relays.

  • Mechatronic Intern — Cambodia Beverage Company Ltd (Coca-Cola)

    07/2017 – 09/2017

    • Analyzed the Coca-Cola production line to identify flaws and gaps for improvement.
    • Sorted and organized spare parts and maintained the filler machine.
    • Calibrated level sensor probes and set up an automated pump system for a Heavy Fuel Oil tank.
    • Tuned PID parameters on a Programmable blower in the supply chain line.

Education

  • Virginia Tech, Blacksburg, VA

    Master of Science in Computer Engineering, Software and Machine Intelligence

    08/2022 – 05/2024

    Thesis: Trustworthy Soft Sensing in Wastewater Treatment Plant:

    • Developed a cost-effective method to measure nitrate in water that is a threat to environment and life.
    • Create a framework to enable non-expert in AI to assess and evaluation soft sensors.

  • East-West Center, Honolulu, HI

    Fellowship, Leadership Program in Innovation and Natural Resource Management

    09/2018 – 10/2018

  • Institute of Technology of Cambodia, Phnom Penh

    Engineer's Degree in Electrical and Electronic Engineering

    11/2013 – 07/2018

    Final Year Thesis: Autonomous Delivery Robot:

    • Developed a server to order the robot to navigate to a certain destination.
    • Developed android App as client application for commanding robot.
    • Utilized Google map API to routing path.
    • Applied a Kalman filter to improve the localization accuracy of the global positioning satellite (GPS).

Volunteering and Organization

  • Institute of Technology of Cambodia

    Vice president of Robotic Club

    11/2016 – 07/2018

    Hosted workshops and events to raise awareness in STEM education.

  • STEM Education Organization for Cambodia

    Event Coordinator

    11/2016 – 01/2018

    Volunteered as a content creator, making STEM-related materials for the page. Facilitated events and coordinated with stakeholders to make events happen.

  • AIESEC in Institute of Technology of Cambodia

    Team Leader in Outgoing Global Exchange

    12/2014 – 12/2015

    Recruited members, interviewed candidates for exchange programs. Led a team to achieve goals.

Achievements

  • Received the Best Final Year Project Award for Autonomous Delivery Robot.
  • Invited to be the trainer on IoT topic on behalf of department to the high school students in STEM festival.
  • Honored to be a speaker on the topic “Volunteerism and Leadership” on behalf of my scholarship.
  • Led the team to win second place in the Business Model competition in Cambodia.
  • Won second place in Mekong Business Challenge which is a regional competition.