Software Tester for Web Application in Energy Trading Context

Project overview

For our client in the energy industry in Bern, we are looking for an experienced, motivated, and open-minded Software Tester for web applications in the energy trading context.

In this project, you will support the quality assurance of a newly developed time-series management system that will replace an existing core application. Through structured testing activities, you will ensure that the new solution functions stably, reliably, and correctly from a business perspective throughout the entire project, and you will accompany the process up to the planned go-live.

Responsibilities

• Derivation of test cases from business and technical requirements, as well as planning and execution of functional tests, integration, migration, and regression tests
• Testing of the web application, its APIs, as well as cross-system processes and data flows via the integration layer
• Execution of end-to-end tests, considering success and error scenarios, as well as verification of business results
• Analysis, documentation, and tracking of defects, as well as re-testing after bug fixes
• Close coordination with development, business departments, and project management to evaluate test results and quality risks
• Support and accompaniment of integration tests as well as the cut-over and go-live phase
• Ensuring traceable test documentation and support with the business acceptance of the solution

Requirements

Additionally advantageous:

Does this sound like an exciting position?

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Further open positions can be found here: coopers.ch

Job profile (0VTZ20)

IT - IT Infrastructure & Operations

Bern

Contracting

Full Time

01.12.2026 - 31.10.2027

• More than 3 years of practical experience in software testing and quality assurance of applications
• Experience in testing web applications based on ASP.NET Blazor and C#
• Practical experience in API testing, ideally with Postman, as well as experience with integration and interface testing
• Experience in the energy industry and understanding of business processes, time-series data, and data flows are an advantage
• Analytical, structured, and meticulous way of working with a high degree of personal responsibility
• Clear communication skills, tailored to the audience, in German and English
• Experience in test automation for UI, API, or regression tests
• Knowledge of PostgreSQL, TimescaleDB / TigerData, and time-series databases
• Experience in agile software development projects and in collaborating with interdisciplinary project teams

Project details

• Start: 2026-12-01
• Location: Bern, CH
• Languages: German