I write software the way I used to watch satellites: from the ground up
A short introduction to what I do, where I came from, and why this blog is a tracelog of work and thinking.
Cloud Site Reliability Engineer · ZILO · React Specialist
Aroonsak Bootchai 
Cloud Site Reliability Engineer, with a background in satellite technology.
Innovative & reliability first — from orbit to fintech.
Capabilities: CLOUD SITE RELIABILITY, FINTECH, SATELLITE SYSTEMS, FLIGHT SOFTWARE, KUBERNETES, OBSERVABILITY, CI/CD, TYPESCRIPT, PYTHON, SVELTEKIT & REACT, APIs, MCP & AUTOMATIONS, POSTGRESQL & REDIS, AI AGENT ENGINEERING.
Recent blog posts
All blog posts →A few thoughts,
with a side.
We put OpenTelemetry in a React app. Here's what broke first.
Moving a fintech React SPA off vendor RUM onto OpenTelemetry taught us that the browser is where every awkward detail meets.
VS Code was where I coded. Orca is where I run agents.
AI agents stopped fitting inside my editor terminal. Orca gave them a workspace I can actually see and steer.
I don't want quiet agents. I want a trace.
Verbose agent reasoning is not noise when it lets me inspect, steer, and learn from the work.
Works
Ship deliverables,
built to be maintainable.
ZILO SaaS platformReact · Kubernetes · AWS · Grafana · Loki · Datadog
Development, maintenance, and delivery work for cloud-based SaaS systems, viewed through an SRE reliability lens.
ZILOCCS5 Satellite Control SoftwareC/C++ · Python · Qt · Tcl/Tk · Svelte
Development, customisation, testing, and maintenance work for CCS5 satellite control software.
TermaCCS5 Web Services & UIC/C++ · Python · Qt · Tcl/Tk · Svelte
New web services API, web UI, and user-interface work around the CCS5 platform.
TermaSatellite Command & Control PlatformC/C++ · Python · Qt · Tcl/Tk
Software supporting satellite command, control, and ground-side operational workflows.
GISTDATHEOS-2A Ground Support SoftwareC/C++ · Python · Linux
Electrical ground-support software for the THEOS-2A satellite programme.
GISTDAInternal Team Management PlatformC/C++ · Python · Web
An internal SaaS/PaaS platform for team management.
GISTDADSI Learning PlatformC/C++ · Python · Web
A learning platform for Thailand’s Department of Special Investigation.
GISTDACansat Ground Control GUIC/C++ · Qt · Python
Ground-control interface software for a Cansat competition platform.
GISTDACansat Core Flight SoftwareC/C++ · Python · Linux
Core flight software for a Cansat competition platform.
GISTDATHEOS-2A SimulatorC/C++ · Python · Hardware-in-the-loop
Satellite simulator software, including hardware-in-the-loop work for THEOS-2A.
SSTLThird Payload Module Flight SoftwareC/C++ · Python
Partial flight-software development for the third payload module.
SSTLThird Payload Module Test Plan GeneratorPython · Test automation
A schedule test-plan generator for the third payload module.
SSTLSatellite Operations DefinitionSatellite systems · Product definition
Design-definition work for satellite operations.
GISTDACentral Team Management PortalWeb · Scheduling · Team systems
A central portal for team gateways, schedules, and calendars.
GISTDATHEOS SchedulerSatellite systems · Scheduling
Scheduling software for THEOS satellite operations.
GISTDAScholarship Recruiting WebsiteNext.js · React · Google Earth Engine
A paperless scholarship recruiting website with an existing-platform integration.
AIT