I'm a Professor of Philosophy at the Faculty of Philosophy, University of Warsaw.
My main research interests lie in philosophy of language and metaphysics. Currently I'm working on assertion, commitment, deniability and lying. Previously I investigated the semantic minimalism - contextualism debate and disagreement over vague predicates (genuine and faultless).
Recently I've been awarded a Bekker fellowship from the Polish National Agency for Academic Exchange (NAWA) to visit the Faculty of Philosophy at the University of Cambridge, where I'll be working on the project "Assertoric content in cooperative and strategic conversations" with Prof. Kasia Jaszczolt as my advisor.
I've also been elected a Beaufort Visiting Fellow at St John's College, Cambridge for Michaelmas Term 2026.
In the spring 2026 I was a senior visitor at LOGOS, Barcelona.
I'm my Faculty's representative in the Philosophy of Language and Mind (PLM) network and I organised the 6th PLM Conference in Warsaw (2022).
In 2024 I was awarded a four-year OPUS 25 research grant from the National Science Centre (NCN) for the project "Assertion, commitment and deniability". Previously, I was PI on the OPUS 15 research project "Vagueness and Disagreement" and the OPUS 8 project on sub-sentential speech acts.
I'm the president of the Committee of Philosophical Sciences of the Polish Academy of Sciences (Komitet Nauk Filozoficznych PAN), having served in 2020–2023 and again in 2024–2027.
In 2020, 2022, 2024 and 2026 I served as a member of an ERC Starting Grant (StG) Peer Review Panel.
In 2019 I served on the scientific committee of SPE 11 - The 11th Semantics and Philosophy in Europe Colloquium, held in Warsaw on 20-22 September 2019.
In 2012/2013 I was a Fulbright Senior Advanced Visiting Scholar in the Philosophy Department at Yale University.
From 2006 to 2012 I coordinated the English-language programme Philosophy of Being, Cognition and Value (current name: Warsaw International Studies in Philosophy) at the University of Warsaw.
I'm a member of the board of the Polish Semiotic Society (Polskie Towarzystwo Semiotyczne).
II've been very fortunate to supervise a number of excellent PhD students:
Filip Kawczyński, Natalia Karczewska, Krystian Bogucki, Kamil Lemanek, Krzysztof Sękowski and Jakub Rudnicki.