The role involves close cooperation with DevOps, Data, and Product teams and offers the opportunity to leverage Sii’s learning ecosystem, including certifications, mentoring, and access to strategic cloud partnerships.

Apply today and let us match you with the best-fitting project!

Your tasks

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

Requirements

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

What we offer

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
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

If you want to work on systems with high operational significance — apply now!

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

Sii