Callstack was founded in 2016 by Mike Grabowski and Anna Lankauf. Our company provides top cross-platform consultancy & development in React.js and React Native. We co-create the technology and collaborate with the Meta team on shaping the technology as core contributors and innovators.
Our main goal is to drive and accelerate software development innovation. To achieve that, we follow our major rule:
We don’t follow best practices. We set them!
Callstack also organizes React Universe Conf - the only community- driven and fully dedicated to React Native conference in Europe.
What is unique about working at Callstack?
- You will work with the best React Native experts on applications used by millions worldwide.
- You can develop your own ideas in our R&D program. If you want to bring your visions to life - Callstack will support you.
- You have a possibility to contribute to our projects in Open Source like React Native Paper, Linaria, RN Testing Library etc.
- There are plenty of possibilities to showcase your expertise: You can speak at our React Universe Conf, be featured in our blog, or React Universe On Air episode.
- You are the one to decide in which area you want to grow, you’ll have an individual self-development budget to upgrade your soft skills, managing skills or become a Mentor in the future.
Join us and work with the TOP Silicon Valley and Fortune 500 companies in the USA!
As a Senior QA Automation Engineer, you will:
- Conducting automated functional and non-functional tests on various devices supported by React Native.
- Performing manual functional and non-functional tests on various devices supported by React Native.
- Translating business requirements into testing scenarios, ensuring they are incorporated early in the software development lifecycle following a shift-left approach.
- Report bugs while adhering to current business requirements.
- Create various testing documents for engineers, management, and stakeholders.
- Work on React Native applications used by millions of people worldwide.
- Develop solutions that deliver tangible benefits for the client.
- Creating and experimenting with new frameworks for Proof of Concept both internally for mentoring and for clients.
- Effectively collaborate with all levels within the company, from engineers (Dev, QA) to PMs, BAs, PR, stakeholders, and the CTO across different countries and time zones.
You are the right candidate if you have:
- Knowledge of automated functional and non-functional testing across a variety of devices supported by React Native.
- Knowledge of Java (TypeScript or Python will be a plus).
- Knowledge of Appium and another framework for mobile device testing.
- Proficiency in creating automation frameworks from scratch, adhering to best practices and standards.
- Experience with manual testing in mobile applications (Android and iOS).
- Familiarity with testing on the web, TV, watches, and desktop platforms is a plus.
- 7+ years of commercial experience in automation testing.
- Experience in setting up CI/CD environments for testing.
- Knowledge in web testing frameworks.
- Skills in leading QA teams, ensuring high-quality standards and effective collaboration.
- Fluent English (B2+), both spoken (for meetings) and written.
- Knowledge of using tools like Charles, Postman or similar
- Knowledge about performance testing approach and methodology
- Independence of working throughout the entire Software Development Lifecycle
- Familiarity with creating various testing requirements for engineers, management, and stakeholders (test scenarios, test cases, post-test reports, etc.) is required
- Backend test knowledge will be a big advantage
- Drivenness towards learning new technologies and knowledge-sharing initiatives
- Ability to quickly gain new technical expertise
- Passion about the open source mission (documented contributions to any open source project would be a huge plus)
- Great communication and team player skills
- Proactiveness and self-drivenness
Why work with us? Because you can:
- Work on software used by millions
- Take part in our Open Source projects
- Cooperate with development team
- Showcase your expertise by speaking at our conference, being featured in our blog or podcast episode
- Co-create and shape core technology
- Join the React Native community
- Develop soft skills
What we offer:
- 24 paid days off & 30 days paid sick leave for B2B contractors
- Fully-covered life insurance
- Private healthcare for you and your family
- Free access to mental health platform - Helping Hand
- Multisport Card or monthly allowance for other sports activities
- Individual self-development budget
- Monthly lunch allowance
- Accounting costs refund for B2B contractors
- Flexible working hours and fully remote work possibility
- Cool office in Wrocław city center
- Magnificent team events and activities
- Company-wide workation and team building workshops
- Top-notch hardware - Apple devices
- Possibility to participate in React Universe Conf
