Senior Full-Stack Software Engineer

Posted:
1/12/2026, 8:12:50 PM

Location(s):
City of Zagreb, Croatia

Experience Level(s):
Senior

Field(s):
DevOps & Infrastructure ⋅ Software Engineering

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.

About the Role

Being a part of Infobip’s Engineering Powerhouse means building in-house products at a global scale. As a Full Stack Software Engineer on our RCS platform, you’ll work on one of Infobip’s most strategic product areas, enabling enterprises to access rich communication technologies through scalable, reliable, and easy-to-use cloud solutions.

RCS (Rich Communication Services) is the next generation of SMS, combining the trusted reach of mobile operators with the interactivity of apps. It allows brands to engage customers through rich, interactive messaging experiences, going far beyond plain text. On this team, your work will impact thousands of enterprise customers worldwide, powering critical business communications every day.

This is an exciting opportunity to work in a rapidly expanding product area, contributing to the SaaS infrastructure, customer onboarding, integrations, security, and feature development of Infobip’s RCS offering.

What You’ll Do

  • Develop, maintain, monitor, and troubleshoot your team’s services with full ownership of your code.

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

  • Understand the interactions and dependencies across the platform and contribute to system architecture discussions.

  • Work autonomously on challenging tasks while collaborating closely with your team.

  • Grow your full stack skills, working primarily on backend development while also touching frontend, databases, system design, and monitoring tools.

  • Participate in agile practices such as sprint planning, standups, and retrospectives with your Product Manager.

  • Proactively suggest improvements to architecture, service design, and engineering processes.

  • Continuously expand your knowledge through internal learning and the broader engineering community.

What Makes You a Strong Fit

  • Mid or senior professional looking for a high-growth technical challenge.

  • Hands-on experience with Java 1.8+ and Spring/Spring Boot development.

  • Solid understanding of object-oriented programming, data structures, and algorithms.

  • Experience with concurrent and multi-tier applications.

  • Recognizes the value of code reviews and testing (unit, integration).

  • Good understanding of RESTful services.

  • Collaborative, curious, and committed to engineering excellence.

Nice-to-Have

  • Familiarity with CI/CD tools: Jenkins, Git, Maven, Canary, or similar.

  • Understanding of databases and messaging systems: MSSQL, PostgreSQL, Redis, RabbitMQ, Kafka, or others.

  • Experience with JavaScript frameworks: React, Vue.js, Node.js.

  • Exposure to collaboration tools: Jira, Confluence, Slack.

  • Openness to adopting, implementing, or proposing new technologies.

  • Experience with modern stacks: Kotlin, Go, Groovy, Python, Bash, Docker, Kubernetes, Prometheus, etc.

When you become a part of Infobip you can expect:
Awesome clients – We serve and partner with the majority of the leading mobile operators, OTTs, brands, banks, social networks, aggregators and many more. Seriously, our clients are really cool. Work with the world’s leading companies and impact how they communicate with their users!

Opportunity knocks. Often. – Being a part of a growing company in a growing industry – we challenge you not to grow! Whether it’s horizontal, vertical, or angular, we want to support the path that you want to carve.

Learn as you grow – Starting with a fantastic onboarding program, to internal education, education resources, e-learning to external educations, we invest heavily in employee learning and development.

Connect globally – Work with people from all over the world. We put the “global” in globalization.

Pay & Perks – Competitive salary, a team taking care of all the equipment you need, team building and other organized activities ...

Talk about a balanced lifestyle!

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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Infobip

Website: https://infobip.com/

Headquarter Location: London, England, United Kingdom

Employee Count: 1001-5000

Year Founded: 2006

IPO Status: Private

Last Funding Type: Debt Financing

Industries: Enterprise Software ⋅ Internet of Things ⋅ Messaging ⋅ Mobile Apps ⋅ SaaS ⋅ Telecommunications