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 The React Native Show podcast 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 Manual Tester you will:
- Execute functional and nonfunctional test
- Write testing suites for cross-platform software for our client’s projects
- Translate business requirements to testing scenarios
- Report bugs and write detailed test reports
- Work on applications used by millions of people worldwide
- Arrive at solutions that bring about concrete benefits for the client
- Collaborate with development teams, CTOs, and PMs from all around the world
REQUIREMENTS You are the right candidate if you have:
- Experience with manual testing in mobile applications (Android and/or iOS)
- 4+ years of commercial experience in manual testing
- Fluent in English (B2+)
- Knowledge of using tools like Charles and Postman or similar
- Knowledge about performance testing approach and methodology
- Knowledge about accessibility in web and mobile app
- Independent and leading a tests process
- Experience with creating testing documentation (test scenarios, test cases, post-test reports etc.)
- Backend tests knowledge will be a big advantage
- Driven towards learning new technologies and knowledge-sharing initiatives
- Able to quickly gain new technical expertise
- Passionate about the open source mission (documented contributions to any open source project would be a huge plus)
- A great communicator and team player
- Proactive and self-driven
- Fun to work with 🙂
Nice to have:
- ISTQB foundation certification or knowledge of syllabus
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 Wellbeing & 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
- Free entry and possibility to participate in React Universe Conf
