Notes on work & life

A little space to
think and share.

Thoughts on building software, learning along the way, and life beyond the work.

I’m Masashi, a software engineer. This is a collection of things I’ve worked on and lessons I’ve gathered. Feel free to look around.

Masashi Kobayashi

Experience

Along the way.

Self-directed learning

AI agent engineering · MCP orchestration
August 2026 – Present

Building AI agents and MCP servers, and exploring the orchestration layers that connect intelligent workflows with useful engineering tools.

Slalom

Architect · Platform engineering
September 2025 – August 2026

Provided hands-on technical leadership in platform engineering, helping teams build scalable infrastructure and automated software delivery.

Apple

Software Build Engineer
March 2022 – May 2025

Automated build infrastructure across more than 500 macOS, Linux, and Windows servers supporting products including Safari, iWork, and Apple TV firmware.

TD

Enterprise architecture
March 2017 – April 2021

Four years supporting banking API design and integration architecture for internal and external systems.

  • API architecture reviews and guidance for solution designers.
  • API client onboarding and authentication and authorization design.
  • Architecture patterns for integrating systems with different protocols.
Notes from my time at TD

More about my background

View résumé (PDF)

Selected work

Things I’ve been part of.

Invention

Financial software architecture

Contributions to financial software inventions alongside enterprise API architecture work.

Patent publication (PDF)

Recognition

Mobile payment innovation

Part of the team nominated for invention of the year in 2018 for a QR code based mobile payment platform.

Patent achievement document (PDF)

Now exploring

Problems I want to solve.

Infrastructure as code

Make infrastructure repeatable.

Using Terraform to define, review, and safely evolve infrastructure so teams can spend less time managing environments by hand.

Delivery

Make software easier to ship.

Exploring practical CI/CD patterns that make builds, tests, deployments, and feedback faster and more dependable.

AI agents & MCP

Connect useful tools to intelligent workflows.

Learning how AI agents and MCP servers can work with real engineering systems while keeping actions understandable and controlled.

Public project

Team Event Activity Calendar

A demo for creating and managing team events in calendar and list views, built with React, Spring Boot, and PostgreSQL, with Terraform modules for AWS deployment.

Explore the project on GitHub

Contact

Say hello.

If something here resonates with you, you’re welcome to get in touch.