Nattaphat Saleetaw

Senior Software Engineer

Bangkok, Thailandnattaphat.mike@gmail.comgithub.com/nattaphatmike9linkedin.com/in/nattaphat-saleetaw-16a51527b

Professional Summary

Senior Software Engineer at InnovestX Securities with 5+ years of experience building backend systems, microservices, and cloud-native applications in Java and Go for securities, payments, government, and enterprise clients. Former Technical Lead with end-to-end delivery experience — from system analysis and backend implementation to DevSecOps and CI/CD pipeline design.

Technical Skills

LanguagesJava 21, Go (Golang), SQL, TypeScript, JavaScript
BackendSpring Boot 3/4, Spring Batch, Kafka, Apache Camel, Fiber, Gin, REST, gRPC
DatabasesPostgreSQL, SQL Server, MongoDB, Redis
Cloud & InfraKubernetes, Docker, Azure, AWS (ECS, S3, Lambda), True IDC
Build & CIMaven, Gradle, Jenkins, GitHub Actions, SonarQube
TestingJUnit 5, Mockito, mountebank
FrontendReact, Next.js, Angular, Tailwind CSS
ToolsGit, Jira, Confluence, Postman, Linux

Professional Experience

Senior Software Engineer — InnovestX Securities
Sep 2026 — Present

Solution Delivery & Architecture

  • ▸Develop backend services for the securities platform with Java Spring Boot and Golang
  • ▸Work across customer data, regulatory reporting, and wallet / payment domains
Java / Go Developer — Accord Innovations
2025 — Aug 2026

Outsourced to InnovestX Securities

  • ▸Developed and maintained backend services for the InnovestX Securities trading and investment platform
  • ▸Built microservices with Java Spring Boot and Golang for financial operations and regulatory reporting
  • ▸Collaborated with cross-functional teams to deliver secure, scalable solutions for the securities industry
Technical Lead — Awa Co., Ltd.
2023 — 2025
  • ▸Led development of E-Document Presentment System — dynamic form engine for e-Invoice, e-Receipt with digital signatures, deployed on Kubernetes/AWS
  • ▸Designed payment gateway integration for Allkons ecosystem using Golang, Angular, PostgreSQL with microservice architecture
  • ▸Architected common CI/CD pipeline with Jenkins and SonarQube for code quality enforcement
  • ▸Managed containerized deployments via Docker and orchestrated with Kubernetes on AWS
Software Engineer — Awa Co., Ltd.
2021 — 2023
  • ▸Built notification system for Student Loan Fund using Java Spring Boot and Spring Batch
  • ▸Developed document management system (Salana) — Java for documents, Golang for authentication, Kubernetes/True IDC
  • ▸Created real-time enterprise chatbot (Kare) with Java Spring Boot, MongoDB, PostgreSQL on Kubernetes/AWS
  • ▸Developed tax calculation engine for foreign stock trading at InnovestX Securities
  • ▸Built Technician System for Excise Department — Java Spring Boot MVC with Golang email microservice
  • ▸Developed comprehensive asset management system with Angular, Java Spring, and Golang Fiber

Key Projects

E-Document Presentment System

Java, Go, K8s, AWS

Dynamic e-Invoice/e-Receipt with digital signatures & government API integration

Payment Gateway (Allkons)

Go, Angular, PostgreSQL

Financial process automation with microservice architecture

Trading Platform (InnovestX)

Java, Go, Securities

Investment systems, tax calculation, portfolio management

Enterprise Chatbot (Kare)

Java, MongoDB, K8s

Real-time messaging with security compliance on AWS

Strengths

Analytical & Problem-SolvingTechnical LeadershipSystem Architecture DesignEnd-to-End Project DeliveryCross-functional CollaborationDevSecOps Mindset
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