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Senior Performance Engineer

Sofia, Bulgaria · Engineering

You’ll be part of the QA Platform squad, working to enable SumUp’s teams to build quality into their products by presenting them with well-documented guidelines, tested tools, and workflows. Your role will be to strengthen the focus on performance and provide support with fixing issues and implementing improvements. 

What you’ll do

  • Analyse the performance capabilities of complex cloud-based systems and platforms

  • Work with domain owners to identify and prioritise performance metrics

  • Design and implement performance tests platform and scenarios

  • You will analyse test results and work together with developers and DevOps engineers to fix issues or implement improvements

  • Conduct root cause analysis of performance issues and suggest corrective actions

You’ll be great for this role if

  • You have command of a high-level language such as Java/Go/JS/C#.

  • You have a deep understanding and experience with Docker and Kubernetes.

  • You are experienced in writing automated performance tests.

  • You have experience working with JMeter, Gatlin or similar tools.

  • You are capable of understanding and documenting cloud-based system architecture.

  • You are fluent in English, both spoken and written.

Why you should join SumUp

  • You’ll receive 25 days’ paid leave, plus 1 additional day for each year of employment.

  • You can take up to 10 days’ educational leave to expand your skill set.

  • We offer additional health insurance, a subsidised Multisport card, free shuttle buses from Joliot-Curie metro station and other great benefits.

  • You’ll participate in weekly Lunch and Learn sessions, where ideas are shared and discussed over company-sponsored lunch.

  • You’ll attend global offsites and/or hackathons.

About SumUp

We believe in the everyday hero.

Small business owners are at the heart of all we do, so we're creating tools that help them run their businesses. With a founder’s mentality and a 'team-first’ attitude, our diverse teams across Europe, South America and the United States work together to ensure that the small business owners we partner with can be successful doing what they love. 

SumUp is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce. SumUp does not make hiring or employment decisions on the basis of race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. SumUp also strives for a healthy and safe workplace and strictly prohibits harassment of any kind.

SumUp will not accept unsolicited resumes from any source other than directly from a candidate.