SYSTEMS · PLATFORM · STRATEGY

Justin Seyvecou

Engineering leader focused on backend platforms, distributed systems, and JVM ecosystem strategy. I design resilient services, align technical direction with real business impact, and still enjoy building things end to end.

Engineering manager at Sytac · JVM ecosystem and platform focus

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Workshop rack and instrumentation

Current focus: homelab observability

About Me

Technical depth. Strategic perspective.

I operate at the intersection of backend architecture, platform strategy, and engineering leadership.

I work on JVM ecosystem positioning, technical assessments, and value driven service opportunities, while staying close to the code and the systems we run.

More than a decade building and operating distributed systems
JVM and platform ecosystem positioning
Translating technical complexity into commercial clarity
Self hosted infrastructure and hands on system experimentation

Featured Projects

Systems I built and operate

FusionFlow

FusionFlow

Real time video platform with token routing and WebRTC infrastructure

Home Server Cluster

Home Server Cluster

K3s, GitLab, storage, monitoring, and too many experiments

Smart Thermostat Controller

Smart Thermostat Controller

3D printed controller with embedded firmware and custom logic

Hardware & DIY Lab

Where software meets solder

Custom Keyboards

Custom Keyboards

QMK firmware and nRF builds

ESPHome & IoT

ESPHome & IoT

Sensors, automations, and dashboards that make sense

3D Printing Projects

3D Printing Projects

Functional prototypes, not decorative dragons

Notes from the Lab

Things I learned the hard way so you do not have to.

Running K3s at Home: Storage Is Where Things Really Broke thumbnail

Running K3s at Home: Storage Is Where Things Really Broke

Part 2: why storage, not CPU, became the real constraint in my home K3s cluster.

Running K3s at Home: Lessons Learned thumbnail

Running K3s at Home: Lessons Learned

Part 1: why I chose Raspberry Pi, what ARM changed, and the CI lessons that followed.

FusionFlow: System Architecture thumbnail

FusionFlow: System Architecture

How FusionFlow is structured across media, control, and infrastructure layers to keep ownership and boundaries clear.