Chad Koslovsky
RésuméPDF / DOCX / Markdown

Senior Product Engineer at LiveKit · Remote

LiveKit application target

Product interfaces with systems depth

I build TypeScript products and work through the behavior underneath the interface. My work spans a real-time arcade with deterministic replay, an open-source signing workflow, and hands-on systems operations. For LiveKit, I would bring that combination to the tools developers use to understand and run their applications.

State, replay and the interface

State, replay and the interface

I built KTHX.fun / Ricoshot end to end: its frontend, multiplayer services, tutorials and rankings, plus the deterministic C++20/WebAssembly engine. Server authority, checkpoints and replay keep client state understandable through lag and reconnects. In Proofmark, I carried a signing workflow across React, TypeScript and tRPC interfaces, APIs, verification and audit history.

Explanatory flow of Ricoshot’s documented simulation, replay and validation work.
  1. Authoritative simulation
  2. Replay and checkpoints
  3. Explicit validation
  4. Convergent clients

Independent product work · Live product

KTHX.fun / Ricoshot

Built the complete arcade product, from frontend and multiplayer services to tutorials, rankings and commerce. Built its deterministic C++20 and WebAssembly engine, keeping clients convergent through lag, reconnects and replay.

Open-source project · Open source

Proofmark

Built an AGPL signing product spanning UI, APIs, data, verification, audit history and PDF workflows.

The operational side of product work

At Front Range Internet Inc., I led monitoring, recovery verification and escalations, and codified deployment with Docker, Kubernetes, Terraform and Ansible. I also translated technical controls into audit evidence and operating procedures. That operational work informs how I reason about failures and explain system behavior.

Front Range Internet Inc. · 2015-2019

Senior Systems Engineer / Datacenter Architect

Led datacenter monitoring, recovery and escalations; codified deployment with Docker, Kubernetes, Terraform and Ansible.

Career timeline

Technomancy IT LLC · 2015-Present

Founder / Product Engineer / Systems Lead

Front Range Internet Inc. · 2015-2019

Senior Systems Engineer / Datacenter Architect

Office Evolution · 2013-2014

Systems / Software Engineer

PlumChoice / Everon · 2011-2013

Network Engineer

IBM · 2009-2011

Infrastructure and Systems Focal