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Infobip

Cloud CPaaS for omnichannel communications

Mid Backend Engineer

Backend EngineeringConfirmed live in the last 24 hours
Full-timeZagreb, Croatia

About the Job

Requirements

  • At least 3 years of professional experience in backend or full-stack software engineering roles.
  • A solid understanding and practical application of object-oriented programming concepts, regardless of programming language or framework.
  • Experience building and maintaining distributed backend systems in production environments.
  • Experience working with relational databases and data-intensive applications, such as PostgreSQL or Microsoft SQL Server.
  • Comfort working in an agile Scrum environment and collaborating with the team, stakeholders, and product managers.
  • Hands-on experience with AI tools such as Claude or Codex, and an understanding of which tasks different models are best suited for.
  • Fluency in spoken and written English.

Responsibilities

  • Design, develop, maintain, monitor, and troubleshoot backend services for telecom operator products.
  • Build high-throughput systems that process large volumes of messaging traffic through operator networks.
  • Work on new products in their early stages, such as an entitlement service for SIM-based authentication.
  • Collaborate with Google and Apple and follow global standards when building network functionalities for operators.
  • Work with relational databases to store and process large amounts of data.
  • Collaborate with engineers, product managers, and stakeholders to deliver reliable technical solutions.
  • Use AI tools thoughtfully, selecting an appropriate model for each task.

Desired Qualifications

  • Experience with Java and Spring Boot.
  • Experience with and understanding of frontend development.

About the Company

Infobip

Cloud CPaaS for omnichannel communications

Infobip provides a cloud communications platform (CPaaS) that lets enterprises connect with customers across the full journey using omnichannel messaging, voice, email, push notifications, and chat through channels like SMS, WhatsApp, RCS, and more via APIs and SDKs. Its products let developers add communications directly to apps and workflows, and it also offers contact center software, authentication, fraud prevention, and AI-powered conversational tools, including CXOP and AgentOS introduced in 2025. The company differentiates itself with a global network of telecom connections and direct operator links, a reach of billions of devices in 190+ countries, and industry recognition as a leading CPaaS provider. Its goal is to help customers build connected, scalable experiences by programmatically integrating communications into their applications and customer journeys.

Company size
1,001-5,000
Company stage
Debt Financing
Total funding
$1.2B
Headquarters
Vodnjan, Croatia
Founded
2006

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