Mid Full-Stack Engineer - Java

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 role is all about
As a Full-Stack Engineer in Infobip's AgentOS base, you will work on large-scale customer engagement and automation platforms, including our AgentOS solution. These products power complex workflows, orchestration, and state-machine-driven systems used across multiple communication channels globally. You will be part of small, initiative-based teams of 5-6 engineers, tackling technically demanding problems around scalability, concurrency, and platform unification, with a strong focus on backend excellence and occasional contributions to the frontend when needed.

What you'll do

• Design, build, and maintain complex backend services primarily using Java and the JVM ecosystem
• Work on distributed, multithreaded systems that support automation, orchestration, and state-machine-based platforms such as AgentOS
• Contribute to feature development and unification across multiple SaaS products, including Answers and Moments
• Occasionally contribute to frontend development using React and TypeScript, without being a primary frontend owner
• Collaborate closely within a small, cross-functional initiative team, participating in planning, reviews, and retrospectives
• Write and maintain unit and integration tests to ensure reliability, scalability, and long-term maintainability of the systems
• Apply an AI-first mindset, including exploring and integrating AI or LLM-based capabilities into product features where releva

What makes you a strong fit

• At least 3+ years of professional experience as a software engineer, with a strong focus on backend development
• Solid expertise in Java and object-oriented programming; JVM experience (Java, Kotlin, or Scala)
• Solid understanding of multithreading, concurrency, and building complex, scalable systems
• Experience working with distributed systems and multiple interconnected services
• Applying an AI-first mindset when approaching engineering problems.
• Effectively leveraging AI to improve code quality, testing processes, and technical documentation.
• Ability to work effectively in small teams, taking ownership and driving solutions end to end
• Fluent in English, both spoken and written

Nice-to-have qualifications

• Familiarity with frontend technologies such as React and TypeScript
• Exposure to AI, NLP, or LLM-based systems, especially integrating AI into production environments
• Experience working on large SaaS platforms with a broad set of customers and use cases

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.

Our mission is to democratize the future of communication

We believe technology should unite people, not create distance. That’s why we make advanced communication solutions available to businesses of all sizes, everywhere - empowering them to connect with their customers in ways that feel natural, personal, and meaningful. Because the future of communication belongs to all of us.

Economy 4.0: The Future of Communication | Official Documentary | CBS News

Build a global mindset in a global company

From a Croatian startup to a global leader, we’ve grown by seizing opportunities - and now it’s your turn. With 3,500+ peers in 75+ locations, Infobip is powered by diversity, innovation, and cross-border collaboration. Here, you’ll connect with talented colleagues worldwide, learn from different perspectives, and grow beyond boundaries.

Learn more 👉 Life at Infobip - Infobip

Pioneer what comes next

From product quality to AI and collaboration, our Engineering & Product teams are shaping work that matters. This video gives you a look inside the people, mindset, and opportunities behind it all.

Perks and benefits of being a Bipper

Great work happens when you feel valued, supported, and motivated. That’s why our benefits are built to help you thrive - at work and beyond. Enjoy flexible work arrangements, Employee Stock Ownership Plan (ESOP), competitive salary and rewards, and time off when it matters most. Grow your career with internal mobility, mentorship, and global opportunities in our hubs worldwide.

Join a company that values your growth, well-being, and success.

Explore more 🌱 Working at Infobip - Infobip

Learn about our culture

We've built something special here - a place where you can thrive personally while turning creative ideas into groundbreaking reality. And how do we make sure this empowering environment keeps supporting you? By staying true to our principles - every day, every step of the way.

Learn more about our culture 🔗 Principles - Infobip