Test Engineer — Mobile Telecom & API Automation

Telecom26 AG; Zug; Remote; CHF 90,000 - 120,000; Full time

Job summary

Telecom26 AG is seeking a Test Engineer to join our team in Switzerland. You will design, automate and run tests across our platform, covering backend services, APIs and the SIM Portal web application, with end-to-end testing of mobile telecom functions.

4+ years of relevant experience in quality engineering is required. We value test automation, API validation, and proactive defect reporting, plus hands-on experience with RESTful and gRPC services, SQL databases, and UI automation tools.

Qualifications

• 4+ years of relevant testing experience in distributed systems.
• Strong QA background with focus on automation and reliability.
• Experience testing APIs, backend services and UI is preferred.

Responsibilities

• Design test strategies, plans and cases for complex systems.
• Build and maintain automated test suites (functional, integration, regression, end-to-end).
• Test APIs and backend services, validate end-to-end data flows.
• Report defects clearly and collaborate with developers to reproduce and fix.

Skills

REST APIs testing

Automation frameworks

CI/CD

SQL (PostgreSQL)

UI test automation

Tools

Playwright

Cypress

Selenium

Docker

Git

Jira

Confluence

Job description

Telecom26 AG is seeking a Test Engineer to join our team in Switzerland. You will design, automate and run tests across our platform, covering backend services, APIs and the SIM Portal web application, with end-to-end testing of mobile telecom functions.

4+ years of relevant experience in quality engineering is required. We value test automation, API validation, and proactive defect reporting, plus hands-on experience with RESTful and gRPC services, SQL databases, and UI automation tools.