Senior QA Engineer (JoomPro)

Location: Lisbon, Portugal JoomPro is the first and only end-to-end cross-border B2B marketplace. It serves small, medium, and large businesses, handling orders of any size from start to finish. Today, JoomPro operates in Brazil and Mexico, with plans to expand into other markets. JoomPro is one of the key businesses of Joom, an international tech-centric group of e-commerce companies founded in 2016 in Latvia. Joom Group also includes other businesses: Joom, a global cross-border marketplace; JoomPulse, an AI analytics tool for Mercado Livre sellers; and Onfy, a pharmaceutical marketplace in Germany. Joom Group has offices in Latvia, China, Portugal, Germany, and Brazil, with its headquarters in Lisbon, Portugal. We work as one international team, sharing knowledge and collaborating across countries, businesses and products. We are currently looking for an experienced QA Engineer to work with web services, backend systems, and APIs. If you enjoy finding bugs, ensuring they get fixed, and suggesting improvements to enhance the product for user satisfaction, come join our team! Responsibilities Perform manual testing of web services; automation experience is a plus but not mandatory Participate in product improvement and collaborate closely with the development team Analyze complex business logic, break it down into clear components, and find issues that others might miss Continuously look for ways to improve the product and testing processes Ask questions when something is unclear and investigate issues thoroughly until the root cause is found Requirements At least 4 years of experience testing web applications Understanding of web technologies and client-server interactions Experience working with at least one database Ability to inspect, analyze, and modify network traffic using tools such as Charles Proxy, Fiddler, Postman, or similar Preferred Familiarity with testing methodologies and experience optimizing testing processes Basic programming skills in any language for writing scripts or creating simple automation We are offering Compensation package: base salary starting from €70,000 gross per year and performance-based bonuses Office-first: flexible hours with a possibility to work remotely 52 days per year, and 22 days of paid annual leave Care & Wellbeing: health insurance (including dental care) for employees and their children, daily meal allowance, and 100% paid sick leave Team & Growth: collaboration with colleagues across Portugal, Brazil, Latvia and China, with opportunities for promotions, professional trainings, and English courses Community & Engagement: annual team building activities, knowledge-sharing workshops, and a strong sense of team work B efore applying for the above position please review our Candidate Privacy Notice here . By responding to the vacancy, you acknowledge that you have read our Privacy notice.