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Senior Machine Learning Engineer
  • Kraków
Senior Machine Learning Engineer
Kraków, Kraków, Małopolskie, Polska
HAYS POLAND Sp. z o.o.
28. 2. 2025
Informacje o stanowisku

Your new company 

Our Client is a global company located in Krakow that is developing high quality software-as-a-service products. On behalf of the company, we are currently looking for a Senior Machine Learning Engineer who will play a key role in levelling up the retrieval-augmented generation (RAG) platform for various channels like customer service bots, email, and search. Working with other ML Engineers you will build high-quality AI products using the latest tools and techniques.

Your new role 

  • Delivering AI-powered capabilities to customers using the latest in LLM technology 
  • Working closely with Product Management, ML Scientists and other ML Engineers to define feature scope and implementation strategies 
  • Mentoring junior team members, as well as pairing with more experienced colleagues to foster mutual learning 
  • Supporting deployed services to ensure a high level of stability and reliability 
  • Contributing to discussions regarding technical design and best practices 
  • Writing clean and maintainable code to meet the team’s delivery commitments


What you'll need to succeed 

  • Proficiency in Python, along with experience in relevant testing frameworks 
  • Experience in designing and implementing RAG systems 
  • Experience with using LLMs 
  • Solid understanding of architecture and software design patterns for server-side applications 
  • Collaborative and growth mindset, with a commitment to ongoing learning and development 
  • Self-managed and agile, with the ability to problem-solve independently 
  • Experience building scalable and stable software applications 
  • Ability to formulate hypotheses, conduct experiments, and analyze results to inform engineering decisions 
  • Experience with managing and deploying cloud services with AWS (or other cloud platform) 


What you'll get in return 

  • Proficiency in Python, along with experience in relevant testing frameworks 
  • Experience in designing and implementing RAG systems 
  • Experience with using LLMs 
  • Solid understanding of architecture and software design patterns for server-side applications 
  • Collaborative and growth mindset, with a commitment to ongoing learning and development 
  • Self-managed and agile, with the ability to problem-solve independently 
  • Experience building scalable and stable software applications 
  • Ability to formulate hypotheses, conduct experiments, and analyze results to inform engineering decisions 
  • Experience with managing and deploying cloud services with AWS (or other cloud platform) 

Technology stack
  • The code is largely written in Python, with some parts in Ruby 
  • Platform is built on AWS 
  • Data is stored in RDS MySQL, Redis, S3, ElasticSearch, Kafka, and Athena 
  • Services are deployed to Kubernetes using Docker, with Kafka for stream processing 
  • Infrastructure health is monitored using Datadog and Sentry 


What you need to do now 

If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.


Hays Poland sp. z o.o. is an employment agency registered in a registry kept by Marshal of the Mazowieckie Voivodeship under the number 361.

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