Poldet

Poldet Assanangkornchai

Backend Engineer · Node.js · TypeScript · DevOps

Living in Bangkok, Thailand
Thai Nationality, 34 years old (1991)
poldet.ai@gmail.com
https://linkedin.com/in/beerpoldet
https://github.com/BeerPoldet
Resume in PDF

EXECUTIVE SUMMARY

Backend engineer with 10+ years of experience specializing in Node.js, TypeScript, and microservices architecture. Expert in building high-performance RESTful APIs and scalable messaging systems. Proven track record in database optimization (MySQL, Redis), monorepo management with Turborepo, and DevOps automation with containerization and CI/CD pipelines. Successfully architected systems processing 1M+ messages per batch with optimal resource utilization. AWS Certified Cloud Practitioner with expertise in Kubernetes, Terraform, and security compliance (ISO27001, SOC2). Fluent in English, with a passion for creating software that enhances people's lives.

SKILLS

Programming & Development

Node.js (8+ years), TypeScript (8+ years), Bash, MySQL (10+ years), PostgreSQL, Redis, MongoDB, RESTful APIs & Microservices Architecture, TailwindCSS, React (8+ years), NextJS (4+ years), Drizzle ORM, Swift (7+ years), SwiftUI (7+ years), UIKit (7+ years), Turborepo

Infrastructure & Cloud

AWS (5+ years), EC2, S3, RDS, Lambda, CloudFormation, Secret Manager, EKS, ECR, Kubernetes (4+ years), Terraform (4+ years), Docker (7+ years), ArgoCD (4+ years), External Secrets, Keda, EBS CSI, Drone CI (4+ years), Grafana, Prometheus Stack

ACHIEVEMENTS

  • Re-architected the legacy message sending system to efficiently support high-throughput operations, enabling the delivery of over 1 million messages per batch with optimal compute and memory usage, which enables our sales to target municipalities and large organizations
  • Delivered a targeted improvement to a legacy CSV import process, significantly increasing performance and scalability while minimizing production impact during high-volume data ingestion.
  • Successfully implemented Kubernetes and Terraform for streamlined deployments and resource management.
  • Mentored and promoted team members, fostering a culture of growth and continuous improvement.
  • Key contributor to achieving ISO27001 and SOC2 certifications.
  • Delivered innovative solutions for airport lounge and machine tracking systems, improving operational efficiency.
  • AWS Certified Cloud Practitioner (Issued by Amazon Web Services Training and Certification)

EXPERIENCES

SS&C Technologies, Inc., Bangkok— Full-time Lead DevOps Engineer
2025 - PRESENT
  • Implemented authentication infrastructure using Keycloak, Active Directory, and Nginx, ensuring security compliance for critical fund management platforms.
  • Overseeing migration from AWS to private cloud infrastructure, managing Windows Server environments with Ansible automation and Terraform.
SS&C Technologies
If You Can CO., LTD, Bangkok— Full-time Senior Development Team Lead
2022 - 2025 (Product: MessageSpring)
  • Designed and implemented microservices-based messaging platform using Node.js, TypeScript, Express, and MySQL, serving customers across multiple countries.
  • Built RESTful APIs handling 1M+ messages per batch with optimal resource utilization through connection pooling, query optimization, Redis caching strategies, and asynchronous microservices architecture.
  • Architected Turborepo-based monorepo structure managing 10+ packages including backend services, shared libraries, and Lambda functions, reducing build times from 30 minutes to less than 3 minutes.
  • Designed and optimized MySQL database schemas with Redis caching layer, implementing connection pooling and query optimization techniques that reduced response times from 3-10 seconds to < 100 milliseconds.
  • Implemented WebSocket-based real-time chat system with Redis pub/sub for horizontal scaling, enabling multi-instance deployments with message broadcasting.
  • Architected SQS-based asynchronous message processing system with retry logic and dead-letter queues, ensuring high message delivery reliability, implementing exponential backoff and 3-retry strategy for failed messages.
  • Led modernized containerization efforts migrating Node.js 10+ applications to Kubernetes (EKS) across dev, staging and production environments, implementing Kustomization, horizontal pod autoscaling, and zero-downtime deployments.
  • Pioneered CI/CD automation with Drone CI and GitHub Actions for monorepo deployments, implementing automated testing, linting, and multi-environment deployments to Kubernetes, reducing deployment time from several hours to less than an hour.
  • Architected and maintained Terraform modules for AWS infrastructure including EKS clusters, RDS databases, Lambda functions, and networking components, managing infrastructure across dev, QA, and production environments.
  • Key contributor to achieving ISO27001 and SOC2 certifications through implementation of security best practices, automated compliance monitoring, and secrets management with AWS Secrets Manager, reducing 10,000+ vulnerabilities.
  • Successfully mentored 5+ engineers, promoting 2 team members to senior positions.
  • Reduced cloud infrastructure costs by 30% through sharing nodes with Kubernetes, rightsizing, reserved instances, and automated scaling policies.
  • Implemented comprehensive monitoring stack using Grafana and Prometheus, improving system visibility and debugging capabilities across 10+ microservices, enabling performance optimizations.
MessageSpring
If You Can CO., LTD, Bangkok— Full-time iOS Engineer
2018 - 2022 (Product: MessageSpring)
  • Led the mobile development team, overseeing iOS and Android development.
  • Managed team workloads and ensured efficient delivery of high-quality software.
  • Provided technical mentorship to improve team members' development skills.
  • Collaborated with product design and business teams to define roadmaps and deliver user-focused solutions.
MessageSpring
The Coral Executive Lounge, Phuket— Full-Stack Developer
2016 - 2018 (Product: Coral)
  • Built RESTful APIs using Node.js with MongoDB, deployed using Docker containers, serving 15K requests/day.
  • Implemented CI&CD pipelines using Drone CI and BuildKit, deploying 3 services on Kubernetes.
  • Collaborated with product design and business teams to define roadmaps and deliver user-focused solutions.
Coral Executive Lounge
Sri Trang Agro-Industry Public Company Limited, Songkla— Outsource full-stack engineer
2016 (Product: Centralize Machine Tracking Management Systems)
  • Designed and developed both web and iOS applications for machine tracking.
  • Consulted with clients to analyze requirements and propose tailored solutions.
Sri Trang Agro-Industry

PROJECTS

DentKlub— Smart job matching platform for dental professionals with map-based discovery
2025
  • Built a full-stack job marketplace revolutionizing dental career discovery by applying intuitive, map-based search experiences familiar from travel booking platforms to job hunting.
  • Implemented interactive map-based job discovery with advanced filtering covering specialization, schedule flexibility, compensation, and practice size, reducing search time from hours to minutes.
  • Architected Next.js application with Incremental Static Regeneration (ISR) for optimal performance, delivering near-instant page loads while maintaining fresh job listings.
  • Designed streamlined job posting interface using shadcn/ui components with full light/dark mode support, encouraging comprehensive listings through smart form design.
  • Optimized map rendering for efficient display of multiple job locations without performance degradation while maintaining SEO-friendly architecture through pre-rendered pages.
MessageSpring at If You Can CO., LTD— A platform enabling businesses to communicate with customers in their preferred language
2018 - 2025
  • Revamped the continuous delivery and deployment process to enhance productivity and eliminate errors in the old deployment approach.
  • Designed and executed a security transformation process, leading to successful ISO27001 and SOC2 certifications within a tight timeline.
  • Optimized system performance and cost by identifying and addressing inefficiencies.
  • Led the development of a new iOS app version, incorporating features like offline usage, push notifications, beacon proximity, deep-linking, and REST API integration.
  • Implemented infinite scrolling with offline support to ensure usability in poor network conditions, optimizing the user experience during app launch.
  • Developed features like optimistic updates, instantly reflecting user actions (e.g., likes or reactions) to enhance interactivity.
  • Integrated Apple’s location services and beacon proximity, addressing iOS-specific access-granting scenarios.
  • Built real-time chat functionality using Socket.IO and integrated social logins (Facebook, Google, Apple).
  • Established a CI/CD pipeline using TravisCI and Fastlane, enabling automated testing, building, and deployment to the App Store.
  • Eliminated Xcode project file conflicts with XcodeGen.
  • Developed the project with Swift, SwiftUI, UIKit, Combine, and ReactiveSwift, utilizing MVVM and TCA architecture in a Scrum-based environment.
3Shot (Hobby product)— A hobby project for a photo souvenir application souvenir
Early 2022 - 2023
  • Created an app for event attendees to take photos that are printed as souvenirs, focusing on simplicity and user-friendliness.
  • Leveraged Apple’s App Clip technology to allow attendees to quickly scan codes and start using the app without download delays.
  • Designed for iPad support with optimized UI for larger screens.
  • Implemented with SwiftUI 3 (backward compatible with iOS 14) and built onthe composable architecture(TCA).
  • Simplified deployment with Fastlane scripts for testing, building, and uploading the app and screenshots.
Centralize Machine Tracking Management Systems at Sri Trang Agro-Industry Public Company Limited— An on-site factory machine introspection platform
2016
  • Hired as a full-stack software consultant to architect, design, and implement an iOS app for mechanical engineers.
  • Developed the app using Swift and UIKit with MVC architecture for efficient and maintainable code.
Last Time (Hobby product)— A hobby Android application for recurring event reminders to improve daily life
2017 to PRESENT
  • Built an Android app to solve a personal problem, gaining experience as both a developer and product owner.
  • Treated the project with a deep sense of ownership, iterating through significant changes to maintain progress and relevance.
  • Focused on creating a user-friendly and life-enhancing tool for tracking recurring events.

AWARDS

Thailand’s representativesat Asia Pacific ICT Alliance Awards at Hong Kong (APICTA) in 2013
Rank 2ndThailand ICT Awards (2013)
Rank 1st (Winner)National Software Contest (2013)
Rank 4thNational Software Contest (2012)

LANGUAGES

Thai- Native
English- Fluent

EDUCATION

Prince of Songkla UniversitySongkla -Bachelor of Engineering in Computer
2010 - 2014