Machine learning engineer with background in Natural Language Processing (NLP). I mostly work with speech processing, Automatic Speech Recognition (ASR), voice biometrics, and multilingual NLP.
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Software EngineerLendo AbSweden -
Machine Learning EngineerConversy Aug 2022 - PresentStockholm, Stockholm County, Sweden -
Computational LinguistReadspeaker Oct 2020 - Aug 2022Uppsala, Uppsala County, SwedenThoroughly tested, improve, and developed Text-to-Speech (TTS) technologies in a variety of languages. Was mostly involved in:— Extensive testing of a Polish TTS;— Validation of transcriptions, phoneme-to-grapheme and grapheme-to-phoneme datasets;— Compilation and pruning a training dataset;— Writing and improving code for normalization. -
Thesis InternshipConversy Jan 2022 - Jun 2022Stockholm, Stockholm County, SwedenWrote a Master’s thesis on multilingual Automatic Speech Recognition (ASR) for Scandinavian languages with focus on practical applications. As part of the thesis, I developed a state-of-the-art multilingual ASR model for the Scandinavian languages and tackled the following research questions:— Are monolingual ASR models for the Scandinavian languages transferrable in a zero-shot setting?— Does mutual intelligibility of the Scandinavian languages in ASR models mirror native speakers?— Are ASR models for the Scandinavian languages biased towards the standard speech or dialect?The thesis was later published in the Proeedings of the 24th Nordic Conference on Computational Linguistics (NoDaLiDa). The article can be accessed at: https://aclanthology.org/2023.nodalida-1.46 -
Teaching AssistantUppsala University Aug 2021 - Jun 2022Uppsala, Uppsala County, SwedenHelped first-year students of Language Technology with no prior programming experience excel at Python, Machine Learning, and NLP.Subjects taught: — Programming for Language Technologists — Natural Language Processing — Advanced Programming — Machine LearningDaily tasks involved:— Introducing programming concepts ranging from for loop to threading;— Explaining and exemplifying data structures and algorithms;— Debugging students` code; — Providing feedback and grading reports and code submissions. -
Talent Acquisition CoordinatorTelia Mar 2020 - Aug 2020Vilnius, LithuaniaProvided quality control of job ads for the Swedish (and other) markets as well as technical support for the Talent Acquisition team. Daily tasks involved:— Proofreading the job ads, correcting the errors, and ensuring the presence of essential information;— Publishing and maintaining the ads on platforms such as LinkedIn;— Handling and helping team members with recruitment through the internal system;— Assisting hiring managers in screening and assessing the candidatesWas additionally involved in projects focused on promoting diversity by de-biasing job ads; that is, making them equally appealing to male and female candidates. -
Customer Service SpecialistNium Jun 2019 - Mar 2020VilniusHelped customers resolve all sorts of issues via calls, emails, and live chats. -
Aml Compliance AssociateWestern Union Jul 2018 - Nov 2018VilniusConducted transaction screening and provided support for agents working directly with customers. -
Customer Service RepresentativeTelenordi Jun 2017 - Nov 2017VilniusProvided support for customers in 20 projects over calls, emails, and chats in Lithuanian, English, Polish, and Russian.
Rafal Černiavski Education Details
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Language Technology -
Scandinavian Studies -
English Philology
Frequently Asked Questions about Rafal Černiavski
What company does Rafal Černiavski work for?
Rafal Černiavski works for Lendo Ab
What is Rafal Černiavski's role at the current company?
Rafal Černiavski's current role is Software Engineer.
What schools did Rafal Černiavski attend?
Rafal Černiavski attended Uppsala University, Vilniaus Universitetas / Vilnius University, Vilniaus Universitetas / Vilnius University.
Who are Rafal Černiavski's colleagues?
Rafal Černiavski's colleagues are Matthias Österberg, Danne Lund, Mikaela Grännby, Christian Brander, Leon Hochwälder, Patrik Skatt Bolander, Rasmus Tell.
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