Senior Full-Stack Developer (w/m/x), Perchtoldsdorf

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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