EXP_01
Multi-Node Multi-GPU Quantum Simulation
Distributed statevector simulation with NVIDIA CUDA-Q across multiple GPUs and nodes on Vast.ai — pushing simulable qubit counts past single-device limits.
read write-up ↗
Quantum & AI Researcher · CUDA-Q · Qiskit
Simulating the impossible, then shipping it.
I'm George Jiri Spitalsky — I build quantum algorithms, scale statevector simulation across multiple GPUs and nodes with NVIDIA CUDA-Q, and turn applied AI research into working systems.
backend: cuda-qtopology: multi-nodestatus: online
QUBITS
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FIDELITY
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GPUs
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|ψ⟩ amplitude
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# multi-GPU statevector simulation
import cudaq
cudaq.set_target("nvidia-mgpu")
state = cudaq.sample(kernel, shots_count=10000)
import cudaq
cudaq.set_target("nvidia-mgpu")
state = cudaq.sample(kernel, shots_count=10000)
0
quantum_credentials
0
accepted_PRs · uhack26
#1
qualification_2026 [prelim]
2020
building_LLMs_since
about
A lab of one — research that compiles, runs, and scales.
George (spital) works where quantum computing meets artificial intelligence. He's a Qiskit Advocate, holds 15+ quantum credentials on Credly, and was personally recommended by an IBM manager. He completed every lab during Qiskit Global Summer School's dev week and will mentor at QGSS 2026 this July.
His open-source work spans quantum software — including five accepted pull requests during UnitaryHack 2026 — alongside machine learning and low-level systems work in RISC-V. On the HPC side, he runs distributed statevector simulation with NVIDIA CUDA-Q across multiple GPUs and nodes.
In 2020 — years before ChatGPT — he built a GPT-2-based conversational model with translation across Czech, English, Arabic, Polish, and German. Same instinct, every time: take what's barely possible and make it real, reproducible, and fast.
selected_work
Experiments that left the lab.
Quantum HPC, language models, and open-source quantum software — every result has a verifiable trail.
EXP_02
gpt2-small-czech-cs
A fine-tuned GPT-2 language model for Czech, open-sourced on GitHub — practical, reproducible NLP for an under-resourced language.
view repo ↗EXP_03
Multilingual GPT — 2020
A ChatGPT predecessor built on GPT-2 with translation across Czech, English, Arabic, Polish & German — conversational AI years ahead of the curve.
more on github ↗EXP_04
UnitaryHack 2026 — 5 PRs
Five accepted pull requests to open-source quantum software during UnitaryHack 2026 — contributing to the tools the quantum community relies on.
see contributions ↗EXP_05
Qualification Round 2026 — Winner
Top of the preliminary scoreboard in the 2026 quantum qualification round — a measurable, competitive result against a strong field.
view scoreboard ↗EXP_06
Qiskit Advocate & QGSS
Accepted into the Qiskit Advocate program; completed every QGSS dev-week lab; mentoring new students at QGSS 2026 this July.
see credentials ↗process
From hypothesis to benchmark.
A clear, low-risk pipeline for research engagements, quantum prototypes, and applied-AI builds.
01 · discovery
Discovery
Scope the problem — quantum feasibility, AI architecture, constraints, and success metrics.
02 · design
Design
Algorithm/model design, a working prototype, and a clear plan with milestones.
03 · build
Build
Reproducible, tested code with real quantum-backend or multi-GPU integration.
04 · deliver
Deliver
Documentation, benchmarks, and a clean handover — with optional ongoing support.
social_proof
Peer-reviewed by people who ship hard things.
Recognition from industry and the open-source quantum community — all independently verifiable.
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George pairs genuine quantum depth with the engineering discipline to actually ship. A rare combination on any team.
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His CUDA-Q simulation scaled cleanly across nodes — exactly the kind of HPC-quantum engineering the field needs.
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Five accepted PRs in a single hackathon. He simply understands open-source quantum software and how to contribute.
Let's run an experiment together.
Open to quantum & AI research collaborations, freelance builds, and QGSS 2026 mentoring. Describe your problem — or reach me directly below.