Senior Machine Learning Engineer IV

**Overview:** - OpenX is a company focused on maximizing the economic potential of digital media through digital advertising markets and technologies. - The company is seeking a Machine Learning Engineer to contribute to R&D projects, specifically for building and maintaining machine learning pipelines. **Key Responsibilities:** - Streamline processes and improve efficiency by identifying unnecessary complexity. - Enhance the efficiency, scalability, and stability of machine learning model training pipelines. - Develop, maintain, and monitor infrastructure for training ML models, automating tasks, and troubleshooting issues. - Integrate feature stores, model repositories, data versioning, and skew detection capabilities. - Optimize models by profiling and applying transformations like pruning, quantization, or hardware acceleration. - Collaborate with team members for deploying and integrating machine learning models. **Requirements/Skills/Qualifications:** - 7+ years of experience in a similar role. - Bachelor’s degree in Computer Science or a related field. - Extensive Python programming and software engineering expertise. - Proficiency with machine learning frameworks (TensorFlow, Keras, PyTorch). - Familiarity with SQL and ML pipelines, particularly Kubeflow Pipelines. - Experience with Google Cloud Platform's Vertex AI. - Strong communication skills in Polish and English. - Willingness to learn new tools and create proof-of-concept implementations. **Compensation & Benefits:** - Employment contract offering 25,100 - 28,000 PLN gross monthly. - B2B option with 191 - 213 PLN net hourly. - Benefits include annual performance bonus, tax-deductible system, private health care, private life and travel insurance, MultiKafeteria program, training access, holiday allowance, pension scheme (PPK from PZU), additional paid day off, free parking, peer recognition platform, and celebration of personal milestones. **OpenX Values:** - Unity and teamwork without exceptions. - Customer-centric innovation and trust. - Ownership and personal investment in work quality. - Openness and willingness to share knowledge. - Embracing change and continuous improvement. **OpenX Traits:** - Humble, integrity-driven, and team-oriented. - Results-driven, proactive, and curious. - Intellectually sharp, interpersonally intelligent, and sound judgment. **Equal Employment Opportunity Statement:** - OpenX is committed to equal employment opportunities and does not discriminate based on legally-recognized bases.