Senior AI/ML Developer – Conversational AI (f/m/x)

Wymagania: - At least 5 years of experience in AI/ML engineering, NLP/NLU development, or conversational AI - Strong hands-on experience in Python and modern NLU/NLP frameworks - Practical understanding of DevOps practices, CI/CD pipelines, monitoring, and logging - Ability to troubleshoot complex system issues and work with analytics dashboards - Very good English skills (B2/C1), enabling effective communication in an international environment - Fluent Polish required - Residing in Poland required O firmie: - Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment. - Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment. Zakres obowiązków: - Design, develop, deploy, and maintain conversational AI solutions with a focus on quality, scalability, and reliability - Conduct root cause analysis, implement bug fixes, and deliver enhancements across existing AI/ML systems - Optimize NLU models through tuning of utterances, intents, and entities, while monitoring bot performance in production - Create and maintain technical architecture documentation, conversational flows, integrations, and diagrams - Lead development activities, support UAT, mentor developers, and translate high-level designs into actionable tasks Oferujemy: - Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas - Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market - We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 - Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more - Comfortable workplace – class A offices or remote work - Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application - PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers - Investment in your growth – meetups, webinars, training platform and technology blog – you choose - Fantastic atmosphere created by all Sii Power People