CETIN Internship - Data Engineer

About us:

CETIN is a service provider for the digital business ecosystem, delivering connectivity, data center, cloud, and cybersecurity services. As a leading national and international interconnection hub in the CEE region, CETIN holds a unique position in the Serbian market. Born in telecom, with deep engineering expertise, the company provides secure, reliable, and high‑availability infrastructure for businesses whose operations depend on performance, resilience, and trust. With all services internally developed and validated, CETIN ensures proven quality, scalability, and operational excellence, enabling partners and customers to focus on their core business while digital ecosystems connect, scale, and grow across the region.

CETIN offers an environment for people so they can grow, continually learn, and build deep expertise, while being respected and supported to do their best.

Join us and build your expertise by working on meaningful projects and complex and large‑scale systems.

We are looking for a Data Engineer Intern that will be a member of a small team with following responsibilities:

• Assist in extracting technical data from various Telco and IT data sources
• Support processing, transformation, and storage of data in an internal Data Warehouse / Lakehouse
• Help maintain and optimize ETL / data pipelines
• Perform data validation and basic quality checks
• Work closely with experienced data engineers and front‑end developers
• Learn industry best practices in data engineering

You will be expected to be familiar with and further develop some of following skills:

• Database SQL, Python,
• Telco and/or IT technologies

Main requirements:

• University degree in relevant science or a related field or student of a final year
• Knowledge and/or experience in some of above listed fields
• Team player, self-driven and motivated to learn
• We cooperate with colleagues from other countries, so beside Serbian, English is our working language also, and you’ll need to be able to express yourself well in both written and verbal

What we offer you: 

• 1 year paid Internship with possibility for employment
• Hybrid work (office and home)
• Working with talented people willing to share their professional knowledge
• Open working space
• Career development opportunities
• Laptop, mobile phone and tariff package in line with company policy