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Senior QA Engineer

Duration – 6 months with auto-renew 

Working Hours - 40hours/week CEST Timezone +/- 3hours 

Employment Type - Partner Agreement (B2B) 
Castille Labs is searching for the most talented Senior QA Engineers to join our Global teams for one of our client, a payment solution provider. 


  • Deliver end-to-end solutions for complex technical requirements. 

  • Lead projects from concept and design, to testing and implementation, problem solving, and quality product. 

  • Help organizations deliver their business outcomes through technology by improving their connectivity and infrastructure 

  • Have the drive with a can-do attitude in challenging environments makes careers and this is the common success story in our Company. 

  • Have first-hand input in improving our quality processes through testing and continuous feedback. 

  • Have experience in continuous learning about QA principles whilst working in a complex environment and a challenging industry. 


  • Relevant certification in either in Business and Computing, Software Development or a related field 

  • Minimum of 5 years in Testing (Manual and automation both) 

  • Good Troubleshooting skills 

  • Good knowledge in QA, test case management and defect tracking tools 

  • Good knowledge and experience of SQL, Postman, API, Jmeter, Selenium 

  • Good knowledge and experience with CI pipelines - Jenkins 

  • Good experience with Functional and Regression Testing 

  • Fluent written and spoken English 

  • Knowledge of QA Governance 

  • Knowledge and experience with Payment Gateway 

  • Bonus point- Experience in Banking/ Online payment sector 

What to expect when you apply: 

  • One to One Chat/Video call, with an HC member 

  • An average of 1 hour Code Challenge. Done Offline with a pass mark of 80%+ 

  • Support from a dedicated Human Capital member to be part of our Global Platform and support you along your career journey!