Freelance Senior QA Engineer (Mobile)

Meyandy LLC; Berlin; Hybrid; EUR 70.000 - 110.000; Vollzeit

Zusammenfassung

Unzer is seeking a Freelance Senior QA Engineer (Mobile) to lead testing for Android and iOS apps. You will design and implement automated tests in TypeScript, using Sauce Labs and Appium, and ensure coverage across APIs, databases, and hardware interfaces such as payment terminals and printers.

You will collaborate with product and engineering teams, participate in code reviews, and drive multi-environment testing to ensure a seamless merchant experience.

Qualifikationen

• 4+ years of professional mobile app testing experience (iOS/Android).
• Experience in test automation using TypeScript and Sauce Labs/Appium.
• Strong knowledge of APIs, Postman, SQL databases (PostgreSQL/SQLite).
• Familiarity with test case design and release processes.

Aufgaben

• Architect, develop, and maintain test automation using Sauce Labs, TypeScript.
• Design and maintain test plans and integrate them with Xray and Jira.
• Execute, maintain, and improve test cases in Xray and workflows.
• Test setups including hardware like card terminals and printers.
• Test inter-device communication between in-house apps.
• Develop cross-team test scenarios, API and database operations.
• Leverage AI tools to assist QA tasks and explore innovative solutions.
• Collaborate with developers and product owners to ensure coverage.
• Engage in code reviews to uphold quality and standards.
• Conduct multi-environment testing for robustness.

Kenntnisse

Mobile testing

Test automation

TypeScript

Sauce Labs

Appium

Postman

SQL databases

API testing

Hardware testing

QA release management

Tools

Playwright

Selenoid

Jobbeschreibung

# Freelance Senior QA Engineer (Mobile)UnzerVia arbeitnowBerlin, DEPubliée il y a 11h## Description du poste**ABOUT US** Unzer is a leading European fintech company with a mission to simplify international payments for e-commerce and retail businesses. Our brand was formed from 13 companies that now contribute to building a unique product covering the entire payment flow. At Unzer, we are driven by the belief that customers should enjoy a seamless shopping experience, no matter where they choose to shop. We are a team of over 700 experts of 55 different nationalities, dedicated to creating a state-of-the-art unified commerce platform. Our goal is to enable businesses to delight their customers with a seamless payment experience. Whether you're a tech enthusiast, payment expert, or a dedicated support professional, we are looking for individuals who are passionate about making a difference. **Our offices:** We are based across Austria, Denmark, Germany and Luxembourg with a HQ in Berlin. **ABOUT THE TEAM**As a member of the Unzer Unified POS team, you will play a pivotal role in testing Unzer’s mobile POS applications for Android and iOS. You will focus on elevating service quality and ensuring seamless functionality. The mobile applications interact with a variety of hardware components, such as barcode scanners, receipt printers, and card payment terminals. **What your work will look like:** - Architect, develop, and maintain test automation using Sauce Labs, primarily with TypeScript- Design and maintain test plans for existing and new application features, and integrate them with Xray and Jira- Execute, maintain, and improve test cases in Xray, and enhance their integration into workflows- Test setups that include peripheral hardware such as card payment terminals, receipt printers, and barcode scanners- Test inter-device communication between multiple in-house applications, such as customer-facing displays or helper applications for gastronomy- Develop and maintain cross-team test scenarios, including API communication and database operations- Leverage AI Tools: Actively use and adapt AI tools in daily QA tasks, exploring innovative solutions and maintaining a curiosity-driven approach.- Collaborate with developers and product owners to achieve optimal test coverage, focus on E2E multiplatform testing coverage but also system tests that reach a realistic experience of the customers & merchants- Engage in code reviews to uphold coding standards and improve overall code quality- Conduct Multi-Environment Testing: Execute tests across various environments to ensure robustness and compatibilityCurrent tech stack of the team:current automation framework & language: TypeScript & Webdriver.ioTooling: Java based **What you need to be successful in this role:** - Ability to work from our Berlin office twice a week to perform in office device testing- 4+ years of professional experience in mobile application testing (iOS and Android)- Experience in test automation using TypeScript and platforms such as Sauce Labs, Appium, or similar- Experience with Test Case Design, including designing test plans and following industry standards- Strong knowledge of data structures and databases, particularly PostgreSQL and SQLite- Solid understanding of different types of APIs and experience testing them using tools such as Postman- Experience testing hardware devices and inter-device communication- Experience in release management and communication- A structured mindset with a proactive approach to test planning ahead of development- Experience in the fintech or payment industry, retail, or gastronomy POS is a strong plus- Experience writing automated tests and defining test scenarios throughout the development lifecycle, with most testing performed through automation.Nice to have:- Experience with Playwright & Selenoid **What’s next?** - Does it sound exciting? - Apply with your CV in English. Please don’t shy away if you don’t meet all the requirements! We’re looking forward to meeting you.- We will get back to you within 14 days of receiving your application.- The interview process includes a 30-minute intro call with a TA Partner, a 60 mi...