Test Engineer

At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe. 

You will join the Hilda 2.0 (HTC) modernization program, responsible for migrating multiple legacy .NET applications and MSSQL databases to a modular, cloud-native Azure ecosystem. The stack includes React + TypeScript frontends, .NET 9 APIs, Azure SQL, Azure Data Factory, and Power BI. Your work will be integral to building robust and reliable testing frameworks that ensure the quality of new and migrated components throughout the entire project lifecycle.

Sounds like your kind of challenge? 

#LI – Hybrid: 3x/week from the office in Kraków

What you’ll be doing

  • Own and evolve the automated testing process: frameworks, standards, best practices.
  • Define and implement a comprehensive test strategy across unit, API, integration, and E2E levels.
  • Build E2E automation in Playwright (React apps), backend integration/unit tests in xUnit (.NET), and frontend unit tests in Vitest/Jest.
  • Embed automated tests into Azure DevOps CI/CD pipelines (PR checks, nightly runs, pre-release gates).
  • Ensure test data management, maintain test reliability, and publish quality metrics.
  • Validate data flows across Azure SQL, ODS, and DWH; design data-driven test scenarios.
  • Collaborate closely with developers on acceptance criteria and mentor on testability.
  • Support UAT: prepare environments, verify scenarios, and document results.

Note: Detailed project information will be shared during the recruitment process. 

What you get in return

  • Flexible cooperation model – choose the form that suits you best
    (B2B, employment contract, etc.)
  • Hybrid work setup – 3x/week from the office in Kraków
  • Collaborative team culture – work alongside experienced professionals eager to share knowledge 
  • Continuous development – access to training platforms and growth opportunities 
  • Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more 
  • High quality equipment – laptop and essential software provided 

Who we’re looking for

  • 5+ years in test automation with experience in custom framework development.
  • Strong coding skills in C#/.NET and JavaScript/TypeScript.
  • Hands-on experience with Playwright (or Selenium with willingness to switch).
  • Unit/integration testing in xUnit/NUnit, frontend testing with Vitest/Jest.
  • Azure DevOps CI/CD integration.
  • Solid SQL skills (MSSQL/Azure SQL).
  • REST API testing and authentication flows (Azure AD, JWT, OAuth).
  • Self-driven and capable of owning the test automation roadmap.

Nice to have

  • Knowledge of Azure services, ADF, ETL testing, Power BI verification.
  • Contract testing (Pact), performance tools (k6, JMeter).
  • Infrastructure as Code (Terraform) familiarity and observability (App Insights).
  • Relevant certifications (ISTQB Advanced, Azure, Test Automation).

Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference. 

Test Engineer

Kraków

B2B

1300 - 1450 PLN/MD netto + VAT

Apply for position

I will handle your recruitment

Martyna Zakrzewska

SUPPORT & BENEFITS

Private healthcare

Fast access to doctors and medical tests. 

Mindbox fully covers the individual package. You can extend the coverage to your partner and family on preferential terms. A wide network of medical providers and clear rules for everyday use.

Multisport

Energy that pays off.

We cover 50% of the card cost. You get access to thousands of sports facilities across Poland, plus a convenient mobile app. Additional cards for family members are available.

Training & development

Practical support for your career growth.

We co‑fund courses, certifications and conferences under a clear Training Policy. You also get access to a library of recorded webinars and trainings – available whenever you need them.

Eyewear or contact lenses co‑funding

Clear vision means comfortable work.

Up to PLN 500 every two years, with an additional PLN 300 available in justified cases. Simple reimbursement, regardless of your form of cooperation.

Group life insurance

Real protection from day one.

Option I is fully funded by Mindbox, Option II is co‑funded. You can include your partner and adult children, with coverage that also applies to treatment and hospitalisation abroad.

Ongoing support from the Talent Network Development

You’re not on your own in a project.

Regular contact, quick response and a partnership‑based approach. You focus on your work — we help take care of the rest.

Regular integration meet‑ups

Relationships that work beyond the project.

Cyclical meet‑ups for contractors in major cities across Poland. A space to talk, exchange experience and stay in real contact with the Mindbox team.

Annual company‑wide integration

One event. The whole community.

A two‑day company gathering with accommodation, transport and a full activity programme. Time to connect teams from across Poland and build shared experiences.

New baby gift

Important moments matter to us.

When a child is born, we prepare a personalised gift. All it takes is a short message to the Talent Network Development team.

do you like
like our offer?

the recruitment process

We support you at every stage

Submit your CV

Apply directly for a selected job offer or simply send us your CV.

Recruiter call

If your profile matches the role or we have a good opportunity for you, a recruiter will get in touch with you.

Profile shared with the client

After the call, we recommend your profile to the client. This is your first real step toward a specific project.

Project interview

If the client wants to proceed, we arrange the meeting. We prepare you for the interview and stay in close contact.

Feedback and decision

You receive feedback regardless of the outcome. If it’s a match, we present an offer.

Contract 100% online

All formalities are handled remotely. Fast, convenient and straightforward.

Ongoing support

Our IT Talent Network team supports you throughout the entire project.

Referral Program

Refer a friend & get up to 6,000 PLN

Do you know an IT specialist who could be a good fit for one of our projects? Share their contact details with us and we’ll take care of the rest.

You can receive up to 6,000 PLN for a successful referral.