Mid/Senior Software Engineer

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.

In our Sarajevo engineering hub, we are developing Infobip’s global Voice product. Running on our proprietary infrastructure distributed across 40+ Data Centers worldwide, our platform serves as the communication layer for large global brands like Uber and LG, enabling them to deliver real-time communication at a massive scale. 

As voice technology evolves with the introduction of AI agents and smart automation, our product roadmap is growing significantly. To support these new capabilities and handle increasing global traffic, we are expanding our engineering footprint. We aren't just filling a single vacancy; we are forming a new team of Software Engineers to build the highly available, scalable architecture and microservices that make these modern innovations possible. 

You can explore our Voice API Documentation to see exactly what you’ll be working on. If you are looking to work on complex distributed systems and build solutions that are used worldwide, this is a great opportunity to join us.

As a Mid or Senior Software Engineer at Infobip, you will be part of our Engineering Powerhouse, working on an in-house developed product that operates at a global scale. You will contribute to a large, scalable microservices architecture that delivers over 500 million messages daily and supports our clients’ business growth. 

This role is focused on our Voice platform, enabling instant, real-time audio communication for customers around the world. 

• →Develop, maintain, monitor, and troubleshoot team-owned services on Infobip’s platform 

• →Take full ownership of the code you produce, from development to production 

• →Write well-designed, testable, and scalable code following clean code principles 

• →Have a general overview and understanding of the interactions and dependencies in the entire system 

• →Work primarily on backend development while growing toward full-stack development 

• →Work on and expand your knowledge in the realm of backend and frontend development, databases, system design, alerting and monitoring tools 

• →Collaborate closely with Product Management on feature development and delivery 

• →Apply an AI-first mindset, including exploring and integrating AI or LLM-based capabilities into product features where relevant. 

• Strong knowledge and understanding of object-oriented programming principles 

• Solid understanding of data structures and algorithms 

• Willingness to learn and grow with us 

• Experience working with concurrent and multi-tier applications 

• Appreciation for code reviews and experience with code testing practices 

• Good understanding of RESTful services 

• You are comfortable using modern development approaches, including AI-assisted coding tools and agents. 

• Experience with Java, Spring, and Spring Boot development 

• Familiarity with CI/CD tools such as Jenkins, Git, Maven, Canary, or similar 

• Understanding of databases and data management tools such as MSSQL, PostgreSQL, Redis, RabbitMQ, Kafka, or similar 

• Ability to design and implement caching strategies that improve application performance and scalability 

• Experience with technologies such as Java, Kotlin, Docker, or others 

Read more about our hiring process.