Toan Nguyen | DuyToan.net

Software Engineer with many years of experience in designing and developing high-quality backend applications. Eager to leverage expertise in software architecture and cloud technologies to contribute to innovative, large-scale development projects. πŸš€β˜•

About me

Hi, I’m Toan Nguyen (Kevin) β€” a results-driven Software Engineer with over many years of experience building high-quality backend systems.

Throughout my career, I’ve worked on complex, large-scale applications across various industries including fintech, retail, and game development. My strength lies in crafting robust system architectures and delivering scalable backend solutions using Java, Spring Boot, and cloud-native tools on AWS. I’ve consistently contributed to projects from initial design to production, collaborating with cross-functional teams and mentoring junior developers along the way.

πŸ”§ My Technical Toolbox

  • Languages & Frameworks: Java, Spring Boot, JavaScript, HTML5, CSS3
  • Databases: MySQL, Oracle, SQL Server
  • Cloud & DevOps: AWS (Lambda, S3, ECS, Step Functions, SQS), Docker, Jenkins
  • Message Brokers: Kafka, MSK

πŸ’Ό Experience Highlights

  • TymeX: Built and maintained a personal lending platform for the South African market, integrating financial data analysis and loan disbursement workflows.
  • MoMo: Developed merchant onboarding systems and enhanced partner portal features to support millions of users in Vietnam.
  • Kido Group: Designed and developed a sales management backend system from scratch.
  • GNT Vietnam: Migrated legacy PHP systems to Java and built core modules for online strategy games.
  • IMT Solutions: Worked on enterprise distribution systems and led small-scale projects as a team lead.

πŸ’‘ What Drives Me

I love solving complex problems, optimizing performance, and making systems more scalable and reliable. I’m passionate about learning emerging technologies and improving team workflows through thoughtful engineering practices.

πŸ“ Based in BΓ¬nh DΖ°Ζ‘ng, Vietnam
πŸ“« [email protected] | LinkedIn

Table of Contents

Experience Work

  1. •

    Software Engineer

    TymeX

    A lending platform designed for individual users, primarily serving South African customers. The system automates loan eligibility checks using a decision engine, analyzes bank statements, calculates affordability, and processes disbursements. Repayments are managed monthly via the DebiCheck debit order system.
  2. •

    Backend Developer

    Kido Group

    The New Kido Shop project aimed to build a comprehensive sales management system from scratch to support sales staff, trade departments, and administrators. The platform includes mobile applications for sales representatives, admin tools, distributor interfaces, and reporting dashboards to manage end-to-end sales operations.
  3. •

    Backend Developer

    M_SERVICE(MoMo)

    Developed a new system to support merchant onboarding and integration within the MoMo ecosystem. The system allowed users to register as merchants via the MoMo app, submit business information for KYC/KYB verification, and manage transaction history and promotional deals.
  4. •

    Backend Developer

    GNT Viet Nam

    An online strategy game where players engage in boss battles beyond the frontier and collect valuable in- game items upon victory. The multiplayer mode enables players to join Guilds, compete in rankings, or collaborate with allies to defeat powerful bosses.
  5. •

    Software Engineer

    IMT

    DMS ONE is an enterprise-grade distribution management system designed for goods distribution businesses. It enables centralized control and oversight of operations across company headquarters, distributors, and on-field sales teams.

Stack Technological

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