👋 Hi! I'm

Mai Tan Phat

Senior COBOL Developer & AI Tinker

What I do

I spend my days bridging the gap between rock-solid IBM Mainframes (z/OS, COBOL, JCL, DB2) and the future of tech. Over the last 7+ years, I've modernized heavy-duty enterprise systems for global insurance and banking clients.

✨

Secret weapon: Using AI Agents & LLMs to automate legacy code analysis and make mainframe development a breeze.

IDENTIFICATION DIVISION. PROGRAM-ID. LEGACY-AI. PROCEDURE DIVISION. PERFORM MODERNIZE CALL 'AI-AGENT' STOP RUN.

My Toolkit stuff I use

Mainframe 🦕

  • COBOL Expert
  • JCL / Batch Expert
  • DB2 / SQL Expert
  • IBM z/OS Pro

Tools & Debug 🛠️

FileAid Abend-AID RDi Debugger Toad for DB

AI Magic 🪄

AI Agents LLMs (Gemini, GPT) Modernization Prompt Eng.

Soft Skills & Lingo 🗣️

  • Agile/Scrum PSPO I
  • English Fluent
  • French Basic
  • Team Mentorship

The Journey so far...

04/2024 – Present

Senior COBOL Dev & AI Tinker

FPT Software – AI Center

Acting as technical advisor for a cool AI Agent project automating COBOL reverse engineering for Japanese enterprise clients.

05/2023 – 04/2024

COBOL Dev (Ingenium)

Dai-ichi Life Insurance

Maintained insurance business features, squashed bugs, and explored deep into policy lifecycle ops.

04/2019 – 04/2023

COBOL Developer

Capgemini Vietnam

Ensured 24/7 stability for massive European insurance applications, wielding Abend-AID, DB2, and grit.

AI-Powered COBOL

Guided LLM tools to extract business logic from 30+ year old legacy code.

Global Delivery

Kept cross-functional teams aligned across Vietnam, Japan, and Europe.

Modernization

Pioneering the shift of monolith z/OS systems toward nimble API architectures.

Let's talk! drop a line

Got an ancient mainframe that needs a little AI love? Or just want to chat about retro tech?