About
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Aleksander is a physicist turned software engineer working at the intersection of quantum computing, artificial intelligence, and high-performance computing. Throughout my career I’ve been pushing the boundaries of what’s possible with technology, I thrive on tackling complex challenges and pioneering innovative solutions. So far I’ve worked in quantum computing, artificial intelligence/machine learning, and high performance computing.
Currently, I work at Pasqal as technical lead quantum-centric HPC. This is a very cross-functional role which consists of not only designing systems and writing software, but also advising on strategy, go-to-market plans, and responding to public procurements and other grants.
I am available for consulting and advisory engagements, if this is of interest, more details are available on the consulting page.
Occasionally, I write on software, quantum, AI and anything else in the blog musings.
I enjoy talking at conferences and I try to mostly view the world from a birdseye view when I do so. The recordings I’m aware of have been collected in a YouTube Playlist. For example, the talk at PLanQC24 @ POPL is available on the POPL YouTube Channel.
The rest of my time I dedicate to exploring LLMs/ChatBots (especially with Retrieval Augmented Generation (RAG) techniques) and running LLMs on edge-devices. For example I have tried to applied them to areas like TravelTech and PropTech.
Selected Blog Posts
| Recreating Gandalf by Lakera | LLM Prompt security: recreating the game and prompt security features directly in OpenAIs ChatGPT |
Selected Publications
| User Centric HPC-QC Environment | QC-HPC software stack and integration model: Introducing Pasqal’s new HPC-QC middleware including a 2nd level quantum scheduler |
| Quantum Resources in Resource Management Systems | The Quantum Resource Management Interface (QRMI) and its Slurm integration via SPANK plugins. |
| Qadence | A digital and analog quantum DSL and framework that is fully differentiable built on PyTorch’s AutoGrad engine |
Recent and Upcoming Talks and Events
| OCP EMEA Summit (Barcelona) | 04/29/2026 | |
| OpenQSE (Online) | 01/19/2026 | Recording |
| OCP FTI (Online) | 01/16/2026 |
Speaker Bio
Aleksander Wennersteen is Technical Lead for Quantum-Centric HPC at Pasqal where he focuses on integrating quantum computing with classical HPC systems and the development of hybrid quantum-classical workflows. Previously at Pasqal he was a quantum software engineer and technical lead working on quantum libraries, cloud platform and numerical simulation of quantum systems. He holds a master’s degree in Mathematical Physics from the University of Edinburgh. Before joining PASQAL, Aleksander worked in high-performance computing and artificial intelligence.