Manual Mobile QA Engineer (iOS & Android)

Location: Varna, Bulgaria; full-time role with flexible hours and home office several days a month.

Company

CSoft develops technological solutions for the banking and financial sector, including core banking processes and digital banking channels, and has operated in Bulgaria for over 30 years.

What you will do

• Develop and maintain functional, regression, UI/UX, exploratory test cases, and checklists from business and technical specifications.
• Validate mobile application behavior across screen sizes, resolutions, iOS and Android versions, network conditions, offline states, and interruptions.
• Analyze end-to-end user journeys to identify edge cases, requirement gaps, logical flaws, and risks.
• Report, reproduce, document, and track defects in Jira, including expected and actual results, environments, logs, screenshots, and videos.
• Coordinate beta testing and distribute test versions through Apple TestFlight, Firebase App Distribution, and Google Play Console.
• Collaborate with developers, designers, and Product Managers in Agile/Scrum processes.

Requirements

• 3–5 years of proven experience testing mobile applications on both iOS and Android.
• In-depth knowledge of platform-specific behavior, Apple iOS Human Interface Guidelines, and Android Material Design principles.
• Experience testing push notifications, deep links, biometric authentication, permissions, camera and file-system integration, foreground/background states, interruptions, installation, updates, migration, backward compatibility, and clean installs.
• Strong understanding of REST APIs, HTTP/HTTPS, WebSocket payloads, status codes, request/response structures, and JSON; practical Postman experience.
• Ability to inspect mobile traffic with Charles Proxy or Fiddler and read crash logs using Xcode Organizer, Android Logcat, or Android Studio.
• Basic ability to execute SQL queries for data persistence and backend verification.
• Proficiency with test documentation, test cases, and checklists using Confluence, Jira, Azure DevOps, or similar tools.
• Excellent professional English, written and verbal.
• Accuracy, responsibility, effective communication, teamwork, confidentiality, and commitment to meeting deadlines.

Nice to have

• Mobile test automation experience with Appium, Espresso, XCUITest, or similar frameworks.
• Ability to identify high-value automation scenarios and analyze automated test execution results.
• Strong command of Bulgarian and English, higher education, and knowledge of Android Espresso, Appium, or XCUITest.

Culture & Benefits

• Flexible working hours balancing professional and personal commitments.
• Additional health insurance, including dental and ophthalmology services, plus sports support or a Multisport card.
• Professional training, conferences, and opportunities to exchange practices and develop skills.
• Modern offices in convenient Varna locations and the option to work from home several days per month.
• Friendly, collaborative environment with social initiatives and thematic team events.

Hiring process

• Submit a CV; only shortlisted candidates will be invited to an interview.
• Applications are handled confidentially, and applying constitutes consent to personal-data processing for selection purposes.