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Infobip

Cloud CPaaS for omnichannel communications

Data Science Intern

Applied Machine LearningPosted on Nov 11
Internship · Winter 2027Zagreb, Croatia

About the Job

Requirements

  • Currently studying in an IT-related field, such as software engineering, computer science, or mathematics, as a final-year undergraduate.
  • Have no professional experience if a final-year undergraduate in a Bachelor of Arts program.
  • Be available to start the internship on February 8, 2027.
  • Hold valid student rights from Studentski Centar throughout the six-month internship period.

Responsibilities

  • Analyze large-scale telecommunications data to uncover patterns, anomalies, and actionable insights.
  • Explore datasets from distributed systems including ClickHouse, PostgreSQL, and Elasticsearch, perform statistical analysis in Jupyter Notebooks, and build machine learning models.
  • Query billions of records, develop data pipelines, create visualizations that drive insights, and transform research into production-ready microservices deployed on multiple data centers.
  • Build production-grade machine learning systems for large-scale telecommunications data analysis.
  • Work with Python, Jupyter Notebooks, Pandas, Polars, Prophet, Scikit-Learn, sentence-transformers, and Darts for time series forecasting and pattern recognition.
  • Query and analyze datasets from ClickHouse clusters, PostgreSQL databases, DuckDB, and Elasticsearch, and learn end-to-end data engineering workflows.
  • Contribute to research-to-production pipelines, from exploratory data analysis in notebooks to deploying FastAPI or Flask microservices that process millions of events daily.
  • Write production-ready, testable code following clean code principles, with emphasis on research reproducibility and service reliability in data science applications.
  • Deploy solutions using uv or poetry for dependency management, Git for version control, Docker for containerization, and Kafka for real-time event streaming.

Desired Qualifications

  • Have a GitHub profile with projects to show.
  • Have participated in student projects, Kaggle competitions, hackathons, workshops, or similar activities.
  • Have participated in internship programs.
  • Be fluent in English at a conversational level.
  • Be able to work a minimum of 30 hours per week.

About the Company

Infobip

Cloud CPaaS for omnichannel communications

Infobip provides a cloud communications platform (CPaaS) that lets enterprises connect with customers across the full journey using omnichannel messaging, voice, email, push notifications, and chat through channels like SMS, WhatsApp, RCS, and more via APIs and SDKs. Its products let developers add communications directly to apps and workflows, and it also offers contact center software, authentication, fraud prevention, and AI-powered conversational tools, including CXOP and AgentOS introduced in 2025. The company differentiates itself with a global network of telecom connections and direct operator links, a reach of billions of devices in 190+ countries, and industry recognition as a leading CPaaS provider. Its goal is to help customers build connected, scalable experiences by programmatically integrating communications into their applications and customer journeys.

Company size
1,001-5,000
Company stage
Debt Financing
Total funding
$1.2B
Headquarters
Vodnjan, Croatia
Founded
2006

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