$ whoami

Barbara Demczyszak

> |

ISTQB-certified QA Test Engineer. I design structured test cases across all test levels, test REST APIs with Postman, and chase bugs until they confess — all within agile Scrum teams.

Get in touch View GitHub
01.

About me

Hello! I'm Barbara, an ISTQB-certified QA Test Engineer who genuinely enjoys finding the edge cases everyone else overlooked. I believe great quality isn't a phase at the end of a sprint — it's a mindset baked into every refinement.

My day-to-day mixes structured test case design across all test levels, manual & exploratory testing, and REST API testing with Postman — with bugs analysed and tracked in Jira and Xray. I bring the testing perspective in early during refinements and work closely with developers and the business side.

When I'm not testing, you'll find me:

  • Sharpening my test automation skills with Playwright & Cypress
  • Improving my German step by step
  • Drinking a strong coffee while reviewing test reports
0% commitment to quality
0 languages spoken (PL / DE / EN)
0 + years of professional experience
02.

Tech stack & tools

Test & QA

  • Test case design
  • All test levels
  • Exploratory testing
  • Manual testing
  • Bug analysis
  • Traceability

Test Automation

  • Playwright
  • Cypress

API & Backend Testing

  • REST API
  • Postman
  • Swagger / JSON

Tools & Tracking

  • Jira
  • Xray
  • SQL

Methodologies

  • Agile / Scrum
  • SAFe (PO / PM)
  • ISTQB

Languages

  • Polish — native
  • German — A2 / B1
  • English — A1 / A2
03.

Experience

QA Engineer · Barbara Demczyszak QA Services @ Trans.eu

01.2026 – 04.2026

Analysed technical specifications and derived functional test cases. Created and maintained test cases in Xray with full traceability, ran manual and exploratory tests with test protocols, performed REST API testing with Postman, and reported bugs in Jira.

QA Engineer · Trans.eu Group S.A., Poland

11.2021 – 12.2023

Designed functional test cases across multiple test levels, prioritised and maintained them in Xray with traceability, and ran manual and exploratory tests of new features. Tested REST APIs with Postman, analysed and reported bugs in Jira, and brought the testing perspective into refinements alongside dev teams and the business.

Technical Support Specialist · Trans.eu Group S.A., Poland

10.2018 – 11.2021

Analysed and determined root causes of defects, designed and executed test cases including REST API checks, and analysed external systems for integration. Daily contact with clients' IT teams and technical support for key accounts.

Customer Service Consultant · Trans.eu Group S.A., Poland

05.2018 – 09.2018

Active customer support in day-to-day operations, plus onboarding and training of new team members (knowledge transfer).

Sales Specialist · Trans.eu Group S.A., Poland

02.2017 – 04.2018

Sale of services and customer care.

04.

Education & certifications

Master's Degree · Wrocław University, Poland

2010 – 2012

Journalism and Social Communication — specialisation in Public Relations.

Bachelor's Degree · DSW University of Lower Silesia, Wrocław, Poland

2008 – 2010

Journalism and Social Communication — specialisation in Digital Media and Electronic Communication.

Certifications

  • ISTQB Certified Tester — Foundation Level
  • Test automation with Cypress
  • SAFe 4 Product Owner / Product Manager
05.

Get in touch

Let's build something reliable together.

I'm open to QA & quality engineering opportunities, collaborations, or a good conversation about flaky tests. The fastest way to reach me:

📍 5600 Lenzburg, Switzerland · Residence permit B

Email barbara.demczyszak@gmail.com Phone +41 76 828 58 75 LinkedIn linkedin.com/in/barbara-demczyszak GitHub github.com/basia-dem