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Team Overview
Our team designs and develops solutions that strengthen secure, reliable communication across telecommunication networks.
Our platforms are integrated into the ecosystem and technical infrastructure of mobile operators across Europe where our services process and analyze voice calls and messages to improve security and customer engagement for millions of end consumers.
In addition, our team provides fully managed Value-Added Services (VAS) solutions to multiple carriers.
This role reports into the Director Product and Technology at RealNetworks, a TransUnion company and will form part of a small team of strong but very capable tech team based in Salzburg, Austria.


Role Overview And Core Responsibilities
Design and develop scalable, high-performance Java/Spring-based backend services
Build integrations with databases, internal systems, and external services
Collaborate with mobile (Android/iOS) and web (SPA) teams to deliver end-to-end solutions
Participate in architecture discussions, requirements gathering, and effort estimation
Write clean, maintainable code and contribute to code reviews and best practices
Work closely with QA and integration teams across Austria and Portugal to ensure high-quality delivery
Required Knowledge And Experiences
Track record years of professional experience in Java backend development
Strong experience with Spring / Spring Boot ecosystems
Solid understanding of REST APIs, microservices, and database integration
Experience working in collaborative, Agile environments
Fluent English (written and spoken), strong problem-solving skills, attention to detail, proactive mindset, and strong team spirit
Required Technical Skills
Java
Spring / Spring Boot
REST APIs (Representational State Transfer Application Programming Interfaces)
Microservices and database integration
Cloud platforms (AWS – Amazon Web Services), containerization (Docker), and CI/CD (Continuous Integration/Continuous Delivery) pipelines
The minimum salary for this position, according to the Austrian collective bargaining agreement, is EUR 3,954.00 per month for a full-time employment. Depending on professional experience and/or qualifications, your actual salary is intended to be significantly higher.
TransUnion Overview:
At TransUnion, we encourage and are committed to creating a real, positive impact and shared sense of purpose within our Workforce for Good , which empowers our people to grow, innovate and contribute to a better future for our communities and customers. We strive to build an environment where our associates are in the driver’s seat of their professional development— while having access to help along the way. We recognize that success comes when our associates thrive both professionally and personally; that’s why we prioritize work/life flexibility and offer resources for our teams across the globe to collaborate and drive excellence.
Be a part of our Workforce for Good – you’ll work with great people, pioneering products and cutting-edge technology.
TransUnion Job Title
Sr Engineer, Software Development
