QA Developer Engineer (f/m/d) SDN/VNF

at subsidary IONOS SE in Berlin
Full-time | /
Reference ID: I-1212

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About us

IONOS is the leading European digitalization partner for small and medium-sized businesses (SMB). The company serves around six million customers and operates across 18 markets in Europe and North America, with its services being accessible worldwide. With its Web Presence & Productivity portfolio, IONOS acts as a 'one-stop shop' for all digitalization needs: from domains and web hosting to classic website builders and do-it-yourself solutions, from e-commerce to online marketing tools. In addition, the company offers Cloud Solutions to enterprises who are looking to move to the cloud as their businesses evolve.   

Imagine being part of a team that's shaping the future of cloud computing, delivering innovative solutions that transform the way businesses operate and people live. At IONOS, we're on a mission to empower organizations to achieve their full potential through our cutting-edge cloud products and services. 

We are seeking an experienced QA Developer Engineer with deep networking expertise and good Python development skills to ensure our cloud networking products meet the highest standards of quality, performance, and reliability. 

You will build and maintain Python-based automated test frameworks, design and execute functional/regression/performance tests, perform packet- and protocol-level troubleshooting, and integrate tests into CI/CD while collaborating with cross-functional teams to drive continuous improvement.

Tasks

• Design and build Python-based automated tests for SDN/VNF-related features of IONOS Cloud.
• Plan, author, and execute functional, regression, scale, and performance tests.
• Build reproducible network topologies and define traffic profiles to validate data/control planes.
• Troubleshoot at packet/protocol level, analyze logs/metrics, and drive root cause with developers.
• Integrate automated tests into CI/CD pipelines with reliable reporting and artifacts.
• Document test plans/cases and report defects.

Qualifications

• 3+ years in software/QA automation, including 1+ focused on networking/SDN/NFV.
• Good production-quality Python (pytest, clean code, packaging, async/concurrency) and solid Git workflows.
• Good knowledge of Linux, Networking, TCP/IP protocol family, SDN and VNF technologies.
• Proficient in using GIT for version control, including command-line operations, branch management, and repository handling.
• Good knowledge of cloud computing, including cloud infrastructure and platform services (e.g., AWS, Azure, Google Cloud, IONOS Cloud) and cloud-based software (e.g., IaaS, PaaS, or SaaS).

Benefits

• Hybrid working model.
• Flexible working hours through trust-based working hours.
• At some locations a subsidized canteen and various free drinks.
• Modern office space with very good transport connections.
• Various employee discounts for activities and products.
• Employee events such as summer and winter parties, as well as workshops.
• Numerous training and development opportunities.
• Various health offers, such as sports and health courses.

apply online now