Linux/Unix System Programmer with C Programming Experience
Qualysoft
Apply to this job Budapest hybrid Until 8/21/2026 First posted March 18, 2026 Last posted March 18, 2026
Job description
Founded in 1999 in Vienna, the Qualysoft Group is a manufacturer-independent IT consulting and services company, which successfully provides support for its international customers with the aim of boosting their competitiveness and economic efficiency through innovative IT solutions.
Its focus is on financial services providers, telecommunications companies, the automotive industry and energy service providers. Over 400 employees in 6 subsidiaries work together to ensure state of the art solutions for our clients.
We are looking for new colleagues in Qualysoft teams for diverse projects providing continuous learning opportunities. Our common goal is to provide honesty, development and a stable background while getting to know the latest technologies. We are waiting for your application for the position below!
Tasks:
- Maintain and enhance our Kerberos authentication systems and associated in-house tooling
- Maintain and enhance internal implementations of open source tooling such as OpenSSH
- Monitor performance and troubleshoot issues related to Kerberos authentication and other Linux/UNIX based security software we maintain
- Analyse data from multiple sources to identify opportunities to improve efficiency, stability and observability
- Create software to automate administrative tasks
- Improve deployment automation pipelines for speed and repeatability
- Work with colleagues, product owners and leadership to help formulate and implement authentication strategy
Requirements:
- Strong Unix/Linux system programming experience with hands-on C development.
- Skilled in writing and debugging multithreaded, system-level code.
- Experience with enterprise software lifecycles, including change control and release management.
- Familiarity with open-source projects and comfortable customizing or extending them.
- Detail-oriented with a strong ownership mindset and problem-solving skills.
- Comfortable collaborating with globally distributed teams.
Nice to Have:
- Experience with Perl (legacy code) or Python (migration projects).
- Understanding of authentication systems such as Kerberos and their integration flows.
Why we think you will love working here:
With us you count as a person, our doors are always open.
We live the Qualysoft Team Spirit and stand for transparency!
Fresh wind and new ideas are welcome, because standstill is a foreign word at Qualysoft.
About this role
Summary
Maintain, enhance, and troubleshoot Linux/Unix security software, automate tasks, and improve deployment pipelines.
Job title
Linux/Unix System Programmer with C Programming Experience
Experience level
Industry
it services
Location requirements
Budapest with remote options available
Salary
Not specified
Management role
No
Skills & keywords
Required skills
unixlinuxcmultithreadeddebugging
Preferred skills
perlpythonkerberosopen-source
Specializations
unixlinuxc programmingsecurityauthentication
Locations
Structured locations inferred from the posting.
Budapest, Hungary
Hybrid City