Infobip

Core Network Engineer Intern

Zagreb (Croatia) Full time

Working at Infobip means being part of something truly global. With 75+ offices across six continents, we’re not just building technology — we’re shaping how more than 80% of the world connects and communicates.

 

As employees, we take pride in contributing to the world’s largest and only full-stack cloud communication platform. But it’s not just what we do, it’s how we do it: with curiosity, passion, and a whole lot of collaboration.

 

We operate with an AI-first mindset, embedding intelligent tools into our daily workflows to work smarter and more efficiently. Every role here benefits from and contributes to this approach.

 

If you're looking for meaningful work and challenges that grow you in a culture where people show up with purpose, this is your opportunity.

Let’s build what’s next, together.

Summerinternship 2026 

Take your first step towards a career in software engineering. Gain practical experience and learn from experienced mentors.  

Being a part of the Infobip Engineering department means working on an in-house developed product and delivering solutions on a global level.   

 

If you are a student in final year of studies in the field of IT, join our software engineering internship program that starts in July 2026 and get a chance to land your first job at Infobip. 

Whatthis role isallabout 

As a Core Network Intern at Infobip, you will be part of the Engineering department — the team behind one of the world's largest cloud communication platforms. You'll get hands-on experience with the network infrastructure that keeps millions of connections running seamlessly across the globe. Working alongside senior network engineers, you'll learn how large-scale networks are designed, monitored, and maintained — from routers and firewalls to traffic analysis and performance optimization. This is your opportunity to turn classroom networking concepts into real-world skills, while contributing to projects that have a genuine impact on how the world communicates. 

 

Whatyou'll do: 

  • Assist in monitoring and maintaining network infrastructure (routers, switches, firewalls) 

  • Support troubleshooting of network connectivity and performance issues 

  • Help analyze logs and network traffic for potential problems 

  • Participate in network configuration and documentation tasks 

  • Collaborate with senior engineers on ongoing projects and improvements 

  • Learn and apply networking concepts in real-world environments 
       

Whatmakesyou a strong fit: 

  • Basic understanding of networking concepts (TCP/IP, routing, switching, OSI model) 

  • Familiarity with networking equipment (preferably Cisco) 

  • Strong analytical and problem-solving skills 

  • Willingness to learn and proactive attitude 

  • Good communication skills and ability to work in a team 

  • You are a graduate (MA) or final year undergraduate (BA) student 

  • You have valid student rights from Studentski centar (can work on student contract for the duration of the internship) 
       

Nice-to-havequalifications: 

  • Familiarity with Linux or scripting (Python is a plus) 

  • Basic knowledge of network security concepts (IPsec, VPN, firewalls, ACLs) 

  • Experience with tools like Wireshark or similar 

  • Understanding of monitoring tools (e.g., SNMP, Grafana, or similar) 

  • Completed or currently attending a CCNA-level networking course 
       

Internshiptimeline: 

  • Application deadline (mid-May)  

  • Imocha online testing (by the end of May)  

  • Interviews and selection process feedback (June)  

  • Start of internship program (July 6th)  

  • Orientation week in Zagreb Infobip campus (July 6th – 17th)  

  • Working with the mentor and within a team (July – January)  

  • End of the internship program (January) 

Why you'll love it here: 

  • Orientation week with all interns and a personalized onboarding plan  

  • Mentor and team support  

  • You will get hands-on experience with the latest AI tools and take part in dedicated AI training sessions designed to help you build skills for the future of software engineering.  

  • Being a part of a growing company in a growing industry – we challenge you not to grow!  

  • Work with people from all over the world. We put the "global" in globalization.  

  • Possibility to stay on after the internship, depending on your performance and business needs  

 

Why choose an internship at Infobip? 

  • Paid internship program  

  • Travel allowance as per city of work  

  • Free lunch  

  • Free snacks and beverages  

  • Social events  

  • Internal trainings  

  • Free access to the Udemy platform  

  • Internship welcome package  

  • Referral bonus  

  • Equipment  

  • On-site amenities  

 

If you haven't already, visit our internship landing page for more details, which you can find at the link. 

 

Diversity drives connection

Infobip is built on diverse backgrounds, perspectives, and talents. We’re proud to be an equal-opportunity employer and are committed to fostering an inclusive workplace.

No matter your race, gender, age, background, or identity — if you have the passion and skills to thrive, there’s a place for you here.

All qualified applicants will receive consideration for employment without regard to race, color, ancestry, religion, age, sex, sexual orientation, gender, gender identity, national origin, citizenship, disability, veteran status or any other part of one's identity.

Read more about our hiring process.

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