Staff Machine Learning Engineer - Hybrid, Poland

Clari’s Revenue platform gives forecasting accuracy and visibility from the sales rep to the board room on revenue performance - helping them spot revenue leak to answer if they will meet, beat, or miss their sales goals. With insights like this, no wonder leading companies worldwide, including Okta, Adobe, Workday, and Zoom use Clari to drive revenue accuracy and precision. We never get tired of our customers singing our praises because it fuels us to help them continue to achieve remarkable. The next generation of revenue excellence is here…are you ready to achieve remarkable with us?

About the Team

The Engineering Team at Clari is deeply committed to building an enterprise-grade platform that serves as the backbone for our customer's most critical business process - Revenue. With an unrelenting commitment to innovation, our mission is to craft the ultimate revenue intelligence platform for our customers. Rooted in Agile principles, we foster a culture of adaptability and efficiency across all our teams. If you're energized by the prospect of contributing to a dynamic environment that emphasizes collaboration, continuous improvement, and leveraging the forefront of technology to address customer needs, we would love to meet you.

About the Role

We are looking for a talented Staff Machine Learning Platform Engineer who is passionate about solving complex problems and advancing AI/ML platforms. You'll collaborate with motivated colleagues on challenging, enterprise-scale projects, ensuring high-quality and reliable solutions. You will be responsible for defining and developing our ML platform, frameworks for generative AI-powered applications, and ML data pipelines. These systems will drive key capabilities, including metric forecasting, insights from conversational intelligence leveraging LLMs, and ML tools that enhance sales workflows.

You’ll engage in the entire lifecycle—from ideation and experimentation to productization—while monitoring model performance across hundreds of customers. The products you build will be used by many of the world’s most renowned companies. 

This is a hybrid position, which will require the ability to be onsite in our Kraków, Poland office as needed. Candidates must be based in Poland.

• Design and build ML architecture components to support large-scale data science projects
• Manage and enhance Clari’s ML platform for training and deploying AI models
• Develop next-generation data pipelines to power Clari’s AI models
• Contribute to all aspects of the AI/ML platform
• Become an industry expert in MLOps and data pipelines
• Maintain post-production ownership of ML modules incorporated into the product
• Serve as a senior technical advisor to management on machine learning and statistical methods
• Lead or participate in the evaluation of machine learning models to determine their suitability for specific analytics problems
• Provide feedback on best practices and recommend necessary investments to increase the efficiency of the Data Science team

• 8+ years of server-side development experience
• 4+ years of experience designing, building, and supporting machine learning platforms, services, and frameworks
• Deep knowledge of machine learning (e.g., deep learning, ensemble methods, regression methods, time series analysis) and experience leading ML engineering projects with large-scale data
• Proficiency in Python and standard ML frameworks such as PyTorch, TensorFlow, SageMaker, MLFlow, and Ray
• Strong understanding of software engineering principles, including data structures and algorithms
• Experience with LLMs and related frameworks, such as LangChain
• Understanding of ML system architecture considerations, including performance, parallelization, robustness, and fault mitigation
• Experience with cloud infrastructure and Terraform
• Self-directed, self-motivated, and detail-oriented, with the ability to design proposals and analyze production issues thoroughly
• Knowledge of SQL and NoSQL databases; familiarity with Java and Scala is a plus
• Experience with streaming frameworks such as Kafka is a plus
• Familiarity with LLM evaluation tools like LangSmith is preferred
• Knowledge of DataLake architectures is preferred
• Experience with service-oriented architecture and APIs is preferred

• Team-bonding activities and company-wide events
• Flexible working hours and remote opportunities
• Annual Well-being and Professional Development Stipends
• Private Healthcare and Multisport Pass
• Paid maternity and paternity leave
• Stock options

#LI-Hybrid

You’ll often hear our CEO talk about being remarkable. To Clari, remarkable means many things. We believe in providing interesting and meaningful work in a supportive and inclusive environment - free from discrimination for everyone without regard to race, color, religion, sex, sexual orientation, national origin, age, disability, gender identity, or veteran status. 

Clari focuses on culture add, not culture fit, and believe we are made stronger by what makes you unique. If you are passionate about learning and excited about what we are doing, then we want to hear from you!