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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on building a global IoT integration platform simplifying connectivity via an abstraction layer for diverse partner APIs. Key technologies include REST and SOAP API testing, Postman, Newman, Node.js, Go, Playwright, Cypress, Pact, K6, JMeter. Responsibilities cover defining quality strategy, developing and maintaining automated API and E2E test suites, production monitoring, and close collaboration with developers. Offered benefits include medical coverage, training access, and a flexible benefit platform.
from: 16 June 2026
to: 16 July 2026
salary not specifiedcontract of employment (full-time)
Offer parameters
level:mid • senior
working mode:remote • hybrid
Warszawa, Mokotów
Requirements
Operating system
Windows
Linux
Our requirements
- 4+ years of professional experience in QA Automation, with a strong focus on API-first products.
- Hands-on expertise in testing REST and SOAP APIs using tools such as Postman, Newman, or custom scripts (Node.js / Go).
- Experience with Playwright or Cypress for end-to-end frontend testing.
- Familiarity with contract testing concepts and tools such as Pact or similar solutions.
- Experience with performance and load testing tools (e.g. K6, JMeter).
- Very good command of English (working language of the project).
- A quality-first mindset combined with the ability to work autonomously in a greenfield environment.
Your responsibilities
- Define and own the end-to-end quality strategy for a greenfield Connectivity Management Platform integration layer.
- Build and maintain a fully automated API and E2E test suite integrated with the GitLab CI/CD pipeline.
- Ensure accuracy and resilience of API “translations” between external MNO platforms and internal systems.
- Design tests that validate behavior against changing external partner APIs and prevent regressions.
- Monitor production logs, identify edge cases, and proactively simulate real-world failure scenarios.
- Collaborate closely with developers and product teams to embed quality into the delivery lifecycle.
About the project
The Project: We are launching a strategic technology project to enable seamless global IoT connectivity by simplifying how international partner platforms are integrated and operated. The initiative focuses on building a common integration layer that abstracts the complexity of diverse external APIs and allows connectivity services to be delivered in a consistent, scalable, and automated way.
At the heart of the project is the development of a Connectivity Management Platform Adapter – a modern, extensible solution that connects multiple partner networks with internal systems, and directly supports the delivery of global IoT services for enterprise customers.
T Hub is a dynamic, forward-thinking initiative where technology truly matters. We are the innovation core of our organization – a place where top talents ideate, prototype, and deliver cutting-edge solutions in international projects across Deutsche Telekom Group.
Have you ever wondered whether you’d rather work in a big-tech company, a software house, or a startup? From home or the office? In telco or IT? With international or local teams?
At T Hub, the answer is one – YES!
What’s next?
Find yourself a super position → Apply → Talk with us → Find yourself in a superposition!
Working at T Hub at T-Mobile will offer you a unique and highly rewarding experience on the IT market. As a leader in the telecommunications industry, T-Mobile provides an opportunity to define quality standards for platforms that enable global IoT connectivity.
You will work on a strategic, international project from day one, with real ownership over testing strategy, tooling, and automation. We foster a culture of trust, continuous improvement, and technical excellence, supporting your growth through learning opportunities, mentorship, and meaningful impact.
What we offer
- Stable employment based on an employment contract.
- Medical package and life insurance.
- Access to training platforms – Percipio, Coursera, Rodos.
- Benefit platform – you choose what you want to use.
- Additional day off for your birthday or nameday.
- Free parking space.
- Flexible home/office work model.
Benefits
- sharing the costs of sports activities
- private medical care
- sharing the costs of foreign language classes
- sharing the costs of professional training & courses
- life insurance
- flexible working time
- corporate products and services at discounted prices
- integration events
- mobile phone available for private use
- no dress code
- parking space for employees
- extra social benefits
- sharing the costs of tickets to the movies, theater
- holiday funds
- birthday celebration
- sharing the costs of a streaming platform subscription
- employee referral program
- charity initiatives
- extra leave
- Benefit Platform
Recruitment stages
- 1.Let’s meet to better understand each other's expectations.
- 2.Hiring Manager will receive your application after meeting.
- 3.Technical meetings with the Hiring Manager and/or team.
- 4.Time to decide!
T-Mobile
Working at T-Mobile’s T Hub will offer you an unique and highly rewarding experience on IT market. As a leader in the telecommunications industry, T-Mobile not only provides a platform to hone your technical skills but also empowers you to be a catalyst for innovation. You'll have the opportunity to work at the forefront of cutting-edge technologies, from 5G to IoT and AI, shaping the future of connectivity. Our commitment to fostering a diverse and inclusive workplace means you'll collaborate with a wide range of talented professionals, learning and growing together. T-Mobile encourages a culture of continuous learning and development, offering mentorship and support to help you thrive in your career.
This is how we work
T Hub – Senior QA / Test Engineer (API & E2E)
I apply to:
T-Mobile
Warszawa, Mokotów
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