Career Journey

Work Experience

5+ years of professional software engineering — from Flutter specialist to senior full-stack engineer and DevOps architect at NTT DATA Thailand.

business_center

NTT DATA (Thailand) Co., Ltd.

Nov 2025 — Present

Bangkok, Thailand

Current

Senior Associate Software Applications Development Engineer

  • check_circleDeveloped and implemented RESTful APIs for new features of the SKL Smart Application using Java Spring Boot.
  • check_circleOptimized the image upload process for the Promise Mobile Store Application, improving performance and reliability.
  • check_circleDesigned and developed a new service integration with LINE Official Account (LINE OA) to support webhook messaging.
  • check_circleBuilt CRUD APIs integrating with PostgreSQL, AWS S3, and Redis using Spring Boot 3.
  • check_circleDesigned and implemented CI/CD pipelines using GitLab Runner, Docker, and AWS ECR.
  • check_circleImplemented monitoring with Prometheus, Grafana, and Loki for real-time container and system metrics.
  • check_circleOptimized the report export service for large datasets, improving data retrieval performance by ~20% and reducing CPU spikes.
Spring BootJavaPostgreSQLRedisAWSDockerGitLab CI/CDPrometheusGrafanaLoki
business_center

Independent Contractor

Nov 2024 — Present

Remote

Freelance

Freelance Software & Mobile Application Developer

  • check_circleDelivered end-to-end mobile and web application solutions for clients via Fastwork and direct contracts.
  • check_circleConducted requirement analysis and collaborated with clients to define project scope and technical solutions.
  • check_circleDesigned scalable system architecture and developed full-stack applications using Flutter and FastAPI / Node.js.
  • check_circleBuilt and integrated RESTful APIs and third-party services (payments, authentication, external APIs).
  • check_circleDeveloped cross-platform mobile applications (iOS/Android) with Flutter, ensuring performance and responsive UI.
  • check_circleOptimized application performance, improving responsiveness and UX across multiple client projects.
FlutterFastAPINestJSNode.jsPostgreSQLFirebase
business_center

NTT DATA (Thailand) Co., Ltd.

Apr 2024 — Oct 2024

Bangkok, Thailand

Full Time

DevOps Engineer

Support & Consultation

  • check_circleMaintained and supported deployed mobile applications, ensuring stability and performance.
  • check_circleProvided technical guidance and troubleshooted issues for team members.

Promise Mobile Store Application

  • check_circleDeveloped, maintained, built, and deployed a document management app for loan approval.
  • check_circleImplemented automated upload queue, ensuring seamless batch processing.
FlutterDartRiverpodDockerAWSGitLab CI/CD
business_center

NTT DATA (Thailand) Co., Ltd.

Oct 2021 — Apr 2024

Bangkok, Thailand

Full Time

Associate DevOps Engineer

Promise Mobile Application — iOS & Android (Public)

  • Developed and maintained a financial loan application for applying, tracking balances, and managing payments.
  • Implemented biometric authentication (Face ID & Fingerprint) for secure app access.
  • Integrated QR Code payment for seamless bill payments via mobile banking.
  • Applied data encryption and Jailbreak/Root device detection for security.
  • Integrated Google Maps API for branch locations and push notifications for real-time updates.
open_in_newApp Storeopen_in_newPlay Store

Promise Mobile Store Application — Internal Document System

  • Developed a document management app for loan approval with real-time sync across branches.
  • Enhanced image processing (auto-crop, resize, quality adjustment) and digital signatures.
  • Utilized Riverpod, go_router, scanner, Hive, and image processing libraries.

SKL Smart Application — Leasing & Financing System

  • Developed a leasing app for dealers to process financing requests seamlessly.
  • Integrated Smart Card Reader for ID verification and application processing.
  • Built UI for financing terms, installment plans, promotions, and application tracking.

ASH Redmine Export — Internal Web Tool (Honda)

  • Developed a web-based reporting tool using Vue.js for the back-office team.
  • Enabled filtering and exporting of issue tracking reports, streamlining workflow.
FlutterDartRiverpodGetXgo_routerFirebaseGoogle Maps APIVue.js
business_center

Waylar Tech Co., Ltd.

Jul 2020 — Oct 2021

Bangkok, Thailand

Specialist

Flutter Developer

  • check_circleMaintained and deployed a sales staff application to the App Store.
  • check_circleDeveloped a technician management application with RESTful API integration.
  • check_circleBuilt a state management prototype using BLoC and GetX.
  • check_circleCreated a check-in and user tracking system for internal company use.
  • check_circleDeveloped a web-based user tracking application using React.
FlutterDartBLoCGetXKotlinReactRESTful APIs
business_center

Waylar Tech Co., Ltd.

Mar 2020 — Jun 2020

Bangkok, Thailand

Internship

Internship — Flutter Developer

  • check_circleSet up CI/CD for Flutter using Jenkins Pipeline.
  • check_circleDeveloped a social login system with Firebase.
  • check_circleBuilt multiple CRUD applications using Firestore and SQLite.
  • check_circleAssisted in building a sales staff application with RESTful API integration.
FlutterDartFirebaseFirestoreSQLiteJenkins CI/CD