CPaaS Registrations Junior Engineer (Vodnjan/Rijeka)





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.





What this roles is all about

Help businesses connect with people around the world and work on the technical services that make it possible. 

Infobip’s CPaaS Registration team delivers technical services that support messaging registration, number setup, and ongoing maintenance. As a CPaaS Registration Junior Engineer, you’ll work with customers, mobile network operators (MNOs), suppliers, and internal teams to deliver these services accurately and on time. You’ll continue building your expertise in global traffic registration, including sender (alpha and numeric) testing and setup, troubleshooting, and contributing to improvements in our tools and processes. 

What you’ll do 

• Maintain Infobip’s sender database and process customer sender registration requests with MNOs and suppliers. 

• Support region-specific and product-specific registration processes, including registrations for WhatsApp, Viber, KakaoTalk, Zalo, Telegram, LINE, Rich Content SMS, Mobile Identity, and Google Business Messages. 

• Work directly with customers, partners, and internal stakeholders, acting as a trusted technical point of contact for registration matters. 

• Order numbers for customers when they are not already available through the Infobip Portal, following established procedures with contracted suppliers. 

• Test newly acquired numbers by verifying that messages can be sent and received successfully, then adding tested numbers to the database so they can be made available to customers. 

• Set up numbers for customers using specialized tools, including configuring how incoming replies are handled in two-way messaging scenarios. 

• Troubleshoot alphanumeric and numeric senders, as well as one-way and two-way messaging setup issues. 

• Respond to inquiries and guide internal and external stakeholders through registration and number-related processes. 

• Document technical procedures, best practices, and information about services, regulations, and network requirements. 

• Work with developers to improve tools by reporting bugs, testing fixes, and sharing ideas for process improvements. 

• Keep up to date with changes to procedures and work processes and apply them carefully to maintain service quality. 

• Build strong working relationships with MNOs, suppliers, customers, and colleagues. 

• Participate in training and continue developing your knowledge of technical processes and tools. 

What makes you a strong fit

• You have a keen eye for detail and are comfortable working with data across different tools, interfaces, or databases. 

• You have strong communication skills and enjoy helping customers, partners, and colleagues understand technical processes.  

• Previous experience in a customer-facing technical role is an advantage but not required. 

• You take ownership of customer requests and technical issues, from investigating root causes to coordinating with other teams and following up through resolution. 

• You’re proactive: you anticipate customer needs, keep open cases moving, and look for ways to improve processes. 

• You enjoy troubleshooting, apply critical thinking, and communicate effectively with colleagues across teams and regions. 

• You’re adaptable and have a basic understanding of computer and internet technologies, with an interest in learning how AI and other technologies can improve everyday work. 

• You have a good command of English. 

• You are organized, collaborative, and willing to learn specialized tools and processes while also having a basic understanding of AI technology, with an interest in its practical applications. 



Why you'll love it here • Financial rewards & recognition - A fair compensation aligned with your experience, industry, and market standards, performance-driven bonuses, regular reviews to support your growth and recognize your contributions, and a culture that values your impact. • Flexible work arrangements - We combine in-person collaboration with remote work and flexible working hours, because great ideas happen everywhere - and not always between 9 and 5. • ESOP (Employee Stock Ownership Plan) - As an Infobip employee, you’ll have the opportunity to share in our company’s success through stock options. • Work-life balance and Well-being  - We offer time off when you need it, special leave days for life’s big moments, and a flexible hybrid work model tailored to local regulations. • Career mobility - Your career is a journey. With internal mobility, upskilling, and mentorship, we help you shape your path.  • Professional development - Learning never stops. Onboarding, mentorship, and training programs help you grow - no matter where you start. • International mobility - Ready to take your career global? Explore short and long-term opportunities in our Hubs worldwide.  While some benefits may vary by location, our goal remains the same: to support your growth, well-being, and success - wherever you are. 



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.

Please be aware that Infobip processes job applications only through our official platform Workday. Applications submitted via other third-party platforms are not reviewed or processed by Infobip.