Senior Full-Stack Developer (w/m/x) - Vienna (On‑Site), AT
3Binfra has successfully placed its software product INFRALIFE on the international railway market. For further expansion, we are looking for employees who will join us in solving the problems of critical railway infrastructure.
Your profile
We are looking for an experienced senior full‑stack developer to join our team as a full‑time working employee. The ideal candidate has demonstrated experience in designing and building complex systems – from architecture to deployment – ideally in an enterprise environment for a minimum of 10 years. This position requires not only a strong understanding of best practices in software development and enterprise patterns, but also strong communication skills toward the customers and the ability to lead a team in complex projects:
* Strong focus on system design and analysis
* Responsible for technical decisions
* Strong understanding of customer needs and presentations
* Participation in all phases of the software development cycle
* Initial creation of well‑documented and testable code
* Conducting code reviews and providing feedback to other developers
* Identify and resolve performance bottlenecks and other technical issues
* Stay up to date with the latest technologies and trends
* Mentoring junior developers and contributing to the overall knowledge of the team
Your qualifications
* Degree in computer science or related field (or equivalent experience)
* Hands‑on experience in software development with a focus on full‑stack development
* Proven experience with React, C# and Java
* Proven track record with relational databases (e.g. Microsoft SQL Server)
* Experience with RESTful APIs and service‑oriented architecture
* Experience in event‑driven integration (e.g. Kafka)
* Experience in Docker/Kubernetes/OpenShift
* Experience with agile development methods (e.g. SAFe, Scrum)
* Fluency in German and/or English is a prerequisite
* Experience with integration of 3rd party systems and legacy systems
Bonus points
* Experience with specific test frameworks (e.g. XUnit, Playwright)
* Experience with CI/CD pipelines (e.g. GitLab CI/CD)
* Experience with PHP, Backbone, jQuery
* Contributions to open‑source projects
* Own projects to showcase the experience
We offer
* A fulfilling work – we build real‑world applications for enterprise customers
* A multi‑national working environment, a supportive team and flat hierarchies
* Excellent working atmosphere in a dynamic and innovative environment
* Flexibility in working times and workplace (on‑site or home office)
Salary
The actual minimum salary is 75,000 EUR gross per year (on a 38.5‑hour basis), the actual salary depends on your qualifications and experience. The salary is paid 14 times per year. The collective agreement IT‑KV (EDV‑KV) applies.
Overtime
Any accrued overtime is compensated in the form of time off.
About the company
3Binfra infrastruktur management systeme GmbH
Number of employees: 11 – 30 employees
Locations: Wien
Must‑have skills
* Java
* C#
* MS‑SQL
* Docker
* React
* RESTful APIs
Nice‑to‑have skills
* Kafka
* PHP
* GitLab
* jQuery
Required languages
* English C1
Nice‑to‑have languages
* German B2
Benefits
* Accessibility
Elevator
* Drinks
free coffee & tea
* Dogs allowed
* Flexible working hours
* Good transportation connections
Underground station Karlsplatz
* Home office
3 days per week
* Team events
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