Machine learning engineer for personalization systems

Playtika Ltd.

Warszawa

Hybrid

PLN 200,000 - 420,000

Full time

9 days ago

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Benefits offered by this job

Гибридный режим работы
Медицинская страховка
Power Up—длинные выходные
Дополнительный выходной в месяц дняр

Job summary

Playtika Ltd. ищет старшего инженера по машинному обучению для разработки и поддержки масштабируемых ML-сервисов персонализации на глобальной платформе. Вы будете внедрять продакшн-решения и поддерживать инфраструктуру данных для миллионов пользователей.

Кандидат должен иметь 5+ лет опыта и сильные навыки Python, API и обработки потоков, работать в гибридной среде и взаимодействовать с межфункциональными командами. Работа в Варшаве с гибридным режимом и поддержкой релевантных технология.

Qualifications

  • Высшее образование в области информатики/инженерии или смежной технической области.
  • Опыт 5+ лет в ML-инженерии, бэкенд-разработке или аналогичной роли.
  • Высокий уровень владения Python и современными API (FastAPI, Pydantic).
  • Опыть реализации потоковых и обработки данных (Kafka, PySpark, Airflow/MLflow/Kubeflow).
  • Опыт разворачивания контейнеризованных приложений (Docker, Kubernetes) и использования моделей сервисинга.
  • Способность самостоятельно осваивать новые технологии и работать в команде.
  • Плюсом будет опыт персонализации и рекомендательных систем/ Reinforcement Learning.

Responsibilities

  • Разрабатывать и поддерживать масштабируемые ML-сервисы для персонализации в реальном времени.
  • Переводить прототипы в продакшн-инфраструктуру и внедрять GenAI модели.
  • Строить пайплайны потоковой обработки для инференса и обучения.
  • Разрабатывать и поддерживать инструменты и агенты AI для упрощения разработки.
  • Обеспечивать наблюдаемость, трассировку и оповещение в продакшн ML-системах.
  • Сотрудничать с учёными данными, продакт-менеджерами и архитекторами.
  • Следить за новыми достижениями в ML и GenAI.

Skills

Python
API-разработка
самодисциплина
командная работа

Education

BSc или MSc в информатике/инженерии

Tools

Docker
Kubernetes
Apache Kafka
PySpark
Airflow/MLflow/Kubeflow

Job description

Описание:

At Playtika, we create mobile games enjoyed by millions worldwide. Combining the scale of a public company (NASDAQ: PLTK) with the speed and ownership of a startup, we are a global leader where innovation, data, and creativity shape the future of entertainment. Playtika is looking for a Senior Machine Learning Engineer to join our team and build efficient, data-driven AI systems that power our core personalization infrastructure.

Задачи:
  • Design, build, and maintain large-scale ML serving architectures for real-time personalization or other AI systems, impacting millions of users.
  • Transform complex data science prototypes into resilient, production-ready infrastructure, and integrate algorithms and GenAI models into production environments.
  • Develop robust streaming pipelines to support continuous model inference and training workflows.
  • Develop and maintain AI agents and internal tooling to empower AI-driven development workflows and modern workspaces.
  • Implement end-to-end observability, tracing, and alerting for production ML systems.
  • Collaborate closely with data scientists, product managers, architects, and cross-functional engineering teams.
  • Stay up to date with machine learning, serving frameworks, and GenAI developments across the industry.
Требования:
  • BSc or MSc in Computer Science, Engineering, or a related technical field.
  • 5+ years of experience as an ML Engineer, Backend Engineer, or similar, with a track record of delivering scalable production solutions.
  • High proficiency in Python and modern API development (FastAPI, Pydantic).
  • Hands-on experience with streaming and data processing workloads (Apache Kafka, PySpark, Airflow/MLflow/Kubeflow).
  • Experience deploying containerized applications (Docker, Kubernetes) and utilizing model serving frameworks.
  • A highly self-driven autodidact who is passionate about adopting innovative technologies.
  • A team player who thrives in strategic projects, actively participates in decision-making, and collaborates effectively with business and technical functions.
  • Будет плюсом: Real-world production experience with personalization architectures, recommendation systems, or Reinforcement Learning models
Условия:
  • A competitive salary and performance-based bonuses
  • Hybrid working mode: Three days from our office, located in the heart of Warsaw (Browary Warszawskie), and two days from anywhere, per week
  • All you can eat! Breakfasts, lunches, desserts, snacks and much more in our Playtika-only cafeteria Access to PlaytiCafe where all of your coffee (and other refreshments) dreams come true
  • Six “Power Up” long weekends for all, and additional day off for your birthday month
  • Private medical healthcare and three additional sick leave days
  • A wellness program in the office: yoga classes, massage chairs and zerobody room
  • Gaming room with a variety of activities
  • Flexible working hours and monthly happy hours
  • Work permit assistance for employees
  • Corporate celebrations, team buildings, and fun activities
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