Stephan Pfannerer-Mittas

Stephan Pfannerer (published as Stephan Pfannerer-Mittas; legal name Stephan Heinz Pfannerer-Mittas) is an Austrian mathematician working in algebraic and enumerative combinatorics, representation theory and diagrammatic algebra. He represented Austria at the International Mathematical Olympiad in 2009, scoring 13 points. He completed a PhD (Dr.techn.) at TU Wien in 2024 under Martin Rubey (dissertation: 'Rotation invariant diagrammatic bases for invariant spaces') and has been a postdoctoral scholar in the Department of Combinatorics and Optimization at the University of Waterloo since September 2024. He held a DOC Fellowship of the Austrian Academy of Sciences. His published work includes papers in Inventiones Mathematicae (2025) and International Mathematics Research Notices on web bases, promotion and cyclic sieving. His LinkedIn profile separately lists a 2013 role as analyst and developer at Glory Trading Systems GmbH (self-reported index data).

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• Quant employment verification: CONFIRMED. LinkedIn-derived data for this profile (Stephan Pfannerer, the TU Wien mathematician / IMO 2009 Austria) lists an actual role as 'Analyst and developer' at Glory Trading Systems GmbH in 2013 (Feb-Apr and Aug), a past role at the firm rather than a competition, insight day, camp or incoming offer. Identity is supported: the same LinkedIn profile ties to the TU Wien mathematics identity via the personal site, the Waterloo contact page and the publication record, and Glory appears only on that one profile. Employer classification: Glory Trading Systems GmbH (Vienna; later linked to GLORY Europe GmbH, FN 303639d) is a proprietary trading firm developing automatic low-latency futures trading systems - per a Toptal developer resume ('Glory Trading Systems GmbH, a proprietary trading firm') and the freelancermap profile of co-founder Heinz Popovic ('GLORY Trading Systems... development of automatic low-latency futures trading systems proprietary trading'), i.e. a systematic/algorithmic trading firm. Caveats: the role is attested only by LinkedIn-derived index data and an aggregator (RocketReach) entry, not by a company page naming him; role type (internship vs short contract) and whether it overlapped his studies in 2013 are not stated by any source.
• Collaborative work on web bases appeared in Inventiones Mathematicae in November 2025 - a top-tier general mathematics journal - placing his combinatorics work in a high-impact venue while still a postdoc.Nov 2025
• Moved to Canada in September 2024 to start a postdoc in the Department of Combinatorics and Optimization at the University of Waterloo, where the department lists him as 'Postdoctoral scholar' (office MC 5044) - his current affiliation as of 2025/2026, based in Waterloo, Ontario.Sep 2024
• Completed a PhD (Dr.techn.) at TU Wien in 2024 with advisor Martin Rubey; the 131-page dissertation 'Rotation invariant diagrammatic bases for invariant spaces' is archived in reposiTUm with DOI 10.34726/hss.2024.98663.2024
• Represents Austria at the International Mathematical Olympiad 2009 in Bremen, scoring 13 points across the six problems, confirming the Olympiad identity given in the brief.Jul 2009
• Beyond the 2013 Glory role, no source found ties Stephan Pfannerer to any other quantitative-finance employer, bank, hedge fund, asset manager, or energy/crypto trading firm - the public record is dominated by academia, so the Glory stint reads as a single early-career move into an algorithmic futures-trading firm rather than a quant-finance career.
• Was a member of the organising committee for FPSAC 2023 (International Conference on Formal Power Series and Algebraic Combinatorics, UC Davis) and co-organised the Graduate Online Combinatorics Colloquium (GOCC), where he gave talks in 2020 and 2023.2023
• Held a DOC Fellowship of the Austrian Academy of Sciences (OEAW), a competitive doctoral fellowship, during his PhD - listed on his personal site and in the OEAW DOC funding programme pages.
• Glory Trading Systems GmbH is classified as a proprietary/algorithmic trading firm on employer-side sources rather than the company name: a Toptal developer resume states a strategy was built for 'Glory Trading Systems GmbH, a proprietary trading firm', and co-founder Heinz Popovic's freelancermap profile describes GLORY Trading Systems as building 'automatic low-latency futures trading systems'.
• Active speaker on the combinatorics circuit through 2025-2026: Tutte colloquium and algebraic/enumerative combinatorics seminars at Waterloo, an ICERM workshop ('Clasped Webs, Trip Permutations, and Promotion on Tableaux'), and abstracts at the AMS 2026 Spring and Fall Sectional Meetings - evidence of a live research programme, not a dormant academic record.2026
• Co-authored 'Web bases from hourglass plabic graphs' in International Mathematics Research Notices (2025) with Christian Gaetz, Oliver Pechenik, Jessica Striker and Joshua P. Swanson - a stable recurring collaborator set across his postdoc output.2025
• Publishes as 'Stephan Pfannerer-Mittas', an appended surname (reposiTUm gives the legal name PFANNERER-MITTAS, Stephan Heinz; titles Dipl.-Ing. Dr.techn. BSc), which is why pre-2024 publications and profiles appear under 'Stephan Pfannerer'.