Performance Testing Specialist (m/f/d)

SOFICO

What The Job Is About

As a Performance Testing Specialist, you ensure the performance, stability, scalability, and reliability of our automotive software solutions through both proactive and reactive performance engineering. This includes identifying issues before they surface as well as diagnosing and resolving problems reported by internal teams or customers. You work across the full technical stack, conducting performance analysis on database (DB), API, and user interface (UI) layers.

Your responsibilities:

Perform proactive performance testing across DB, API, and UI layers to identify potential bottlenecks before they impact users
Execute reactive performance investigations when issues arise, analyzing behavior across the full stack to quickly isolate and resolve root causes
Conduct performance and load testing to validate system scalability and resilience under stress
Provide technical guidance to development and product teams for improving performance at structural and code levels
Execute load and stress tests at DB, API, and UI levels to ensure end‑to‑end system resiliency
Assist customers in identifying, diagnosing, and resolving performance‑related issues using both proactive guidance and reactive troubleshooting
Manage and maintain dedicated performance/load environments to ensure accurate simulations at different stack layers
Analyze and optimize batch jobs for stability and throughput across varying load conditions

Your Interests And Skills

You have a passion for solving complex performance challenges and improving software efficiency, combined with a critical and analytical mindset.

Requirements:

Hands-on experience with DB, API, and UI performance testing & optimization
Strong analytical skills for identifying bottlenecks
Accuracy and diligence in fine-tuning complex systems
Collaboration skills for cross-functional teamwork
Proactive problem-solving mindset
Strong communication for translating performance insights
Eagerness for continuous learning
Experience in tools like JMeter, K6, Dynatrace, … is an asset
ISTQB CTFL 4.0 certification mandatory, ISTQB CT-PT certification recommended

What we offer you

Competitive salary package
Group and hospitalization insurance
Additional benefits: bike leasing and flexible working hours

Join an international, multicultural company with more than 35 years of experience, which doubles in size every 5 years. We encourage a horizontal, open corporate culture where career development and personal growth are central. You benefit from a comprehensive 6-month onboarding, including a dedicated job coach, and receive ongoing learning opportunities. Participate in fun team activities such as after-work drinks, barbecues, family days, and company weekends. Additionally, you work in a modern and easily accessible office, equipped with charging stations for electric cars and bikes, as well as free shared bikes.