Senior C# Test Automation Engineer

Sii Sp. z o.o.; Szczecin; Hybrid; PLN 120,000 - 160,000; Full time

Job summary

A leading technology services company in Szczecin is seeking an experienced Automation Tester to automate complex systems in web and desktop applications. Responsibilities include working in Agile teams to enhance CI/CD pipelines, designing test frameworks, and expanding test coverage. Ideal candidates have over 5 years of experience with C#, fluency in English and Polish, and reside in Poland. Competitive benefits and a supportive workplace atmosphere are offered.

Benefits

Private healthcare

Benefits cafeteria platform

Car discounts

Investment in personal growth

Profit sharing with workers

Qualifications

• Minimum of 5 years experience in automated tests.
• Knowledge of software testing methodologies.
• Experience with both UI and API testing.

Responsibilities

• Work in an Agile team with Continuous Delivery practices.
• Design quality gates in CI/CD pipelines.
• Maintain automated test suites for web and WPF applications.

Skills

Automated tests design

C# proficiency

Fluency in WPF

Web automation tools knowledge

SQL application

English (B2)

Polish (B2)

Tools

Playwright

Selenium

FlaUI

WinAppDriver

Job description

We are looking for an Automation Tester who is passionate about software quality and eager to take on the challenge of automating complex systems. You’ll work with both web and WPF desktop applications, strengthen CI/CD pipelines with automation, and collaborate in an Agile team to deliver faster and safer releases.

Responsibilities

• Working in an Agile team with Continuous Delivery practices
• Designing and implementing quality gates in CI/CD pipelines
• Creating and maintaining automated test suites in C# for web and desktop (WPF) applications
• Expanding test coverage as new features are introduced
• Optimizing test execution time and reliability
• Building and maintaining automation frameworks

Requirements

• Having at least 5 years of experience in designing and implementing automated tests (UI, API, integration, end-to-end) in C#
• Knowing software testing methodologies and best practices, and applying SQL in testing tasks
• Using web automation tools such as Playwright, Selenium, or similar
• Using desktop automation tools such as FlaUI, WinAppDriver, or similar, with fluency in WPF technology
• Designing and maintaining automation frameworks
• Speaking English and Polish fluently – min. B2 level
• Residing in Poland required

Offered

• Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
• Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
• We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
• Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
• Comfortable workplace – class A offices or remote work
• Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
• PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
• Investment in your growth – meetups, webinars, training platform and technology blog – you choose
• Fantastic atmosphere created by all Sii Power People