← John Sackeycv ↓

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Work that ships.

A selection of what I've built and broken — production AI agents, the backends behind them, and the security work that keeps them honest.

01

Agentic AI · computer-use · 2025 — Present

PiCUA — the first physical computer-use agent

WithGiga · Lead Software / AI Engineer

A language model can reason about a screen but can't physically operate one. PiCUA closes that gap: an AI agent that drives real machines through PiKVM hardware — so a model can boot, control, and recover a computer at the firmware level, not just click around inside an already-running OS.

I lead the AI infrastructure and the computer-use agent itself, with a bias toward real-world deployability over demos — intelligent automation that lets an agent interact with a physical machine remotely. The result is the world's first physical computer-use AI agent, live at picua.ai.

Computer-use agentsPiKVMPythonAI infrastructure
picua.ai
02

AI security · red-team · 2025 — Present

Red-teaming autonomous agents

WithGiga · Lead — Agentic Security Team

Offensive + defensivePrompt-injection hardening

An agent that can use tools is also an autonomous attack surface. I lead red-team and security research across agentic AI systems and computer-use agents — probing where a model can be steered into doing something it shouldn't.

The work turns offensive findings into concrete defenses: hardening autonomous agent pipelines against prompt-injection and tool-abuse vectors before they reach production.

Red-teamingPrompt injectionTool-abuseAgent security
03

Responsible AI · RLHF · 2025 — 2026

Human-in-the-loop systems for responsible AI

Human in the Loop (HITL) · Software / AI Engineer

Responsible AI needs humans in the loop where it matters. I built human-feedback-driven systems and the analytical admin tooling that gives teams oversight of AI workflows — alongside the evaluation frameworks and quality testing that keep model behavior honest.

The implementation went on to win a 2026 Webby Award (People's Voice) for Best Responsible AI.

RLHFEvaluation frameworksAdmin toolingResponsible AI
Read the award announcement
04

Agentic commerce · backend · 2025 — 2026

EasyACP — agentic commerce on a protocol

EasyACP · Lead Software / AI Engineer

Built on the Agentic Commerce Protocol

Agentic commerce needs a protocol agents can actually transact over. I led engineering for EasyACP — built on top of the Agentic Commerce Protocol — coordinating the team and the backend architecture behind AI-assisted commerce workflows.

Agentic Commerce ProtocolBackend architectureAI workflowsTeam lead

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The Giga toolchain behind physical and virtual computer-use agents — the remote-control layer, the agent infrastructure, and the automation around it.

remote accessopen source

GigaVNC

Browser-based VNC for web remote access — the remote-control layer that computer-use agents drive to operate a machine.

github.com/WithGiga/GigaVNC
infrastructureinternal

gProxy

Proxy tooling for routing and controlling computer-use agent traffic.

internal tool
infrastructureinternal

gProcessInfo

Process introspection for agent and computer-use sessions.

internal tool
computer-useinternal

e2b-desktop-templates

E2B desktop sandbox templates for running computer-use agents in isolated environments.

internal tool

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buildlive

PiCUA AI

World's first physical computer-use AI agent. Compatible with PiKVM, enabling physical computer control and remote AI-assisted machine interaction.

picua.ai
python · pikvm · computer-use
buildopen sourceactive

OpenClaw Code

AI-powered development environment inspired by Cursor IDE. Built tooling for intelligent coding workflows and AI-assisted developer productivity.

github.com/damoahdominic/occ
typescript · llm · developer tooling
build / breakopen sourceactive

pw-control

The most powerful browser-use CLI for agents. Lets LLMs and AI agents maneuver the internet efficiently — including drag-and-drop.

hijacker-mills/pw-control
playwright · agents · cli
buildlive

IntelliQ AI

AI study platform for student productivity. AI-enhanced learning assistance and intelligent educational workflows focused on student outcomes.

ai-intelliq.com
next.js · llm apis · rag

Hiring, or building something agentic?

Open to remote roles in AI engineering and agentic security. Let's talk.