Mid QA Engineer (Quality Assurance)

JavaScript

al. Niepodległości 18, Warszawa

CTHINGS.CO Sp. z o.o.

12 000 - 16 000PLN

Net per month - B2B

12 000 - 14 000PLN

Gross per month - Permanent

Full-time

B2B, Permanent

Mid

Remote

Tech stack

English

C1

Automated Testing

advanced

API Testing

advanced

Test Cases

advanced

React

advanced

TypeScript

advanced

Microservice Architecture

advanced

GitLab

regular

REST API

regular

Postman

regular

Python

nice to have

Job description

We are looking for a highly organized and proactive QA Engineer who approaches challenges with creativity and fresh solutions. The ideal candidate is not only focused on current initiatives but is also motivated to understand our broader vision and how it shapes the customer experience. They are dedicated to making sure every action we take supports our overarching goal of delivering outstanding value to our customers.

Responsibilities

1. Define and implement test automation frameworks alongside our products

2. Design and implement functional, regression, and performance tests

3. Develop manual test cases, when needed, to support automated test coverage

4. Write and maintain test documentation

5. Participate in implementing performance testing practices

6. Conduct tests in a microservices architecture, including system, GUI, API, and database testing

7. Optimize testing processes to ensure high software quality

8. Document, monitor, and analyze test results using tools like Allure; report defects via JIRA

9. Actively participate in daily stand-ups, sprint planning, and brainstorming sessions related to project quality

Must-Have Qualifications

• 3+ years of relevant professional experience in writing test automation scripts

• Solid experience with end-to-end web testing frameworks — hands-on knowledge in Playwright

• Proficiency in JavaScript or TypeScript

• Good understanding of React applications from a QA perspective

• Knowledge of REST APIs and tools like Postman, Insomnia, or similar for API testing

• Experience with GIT and Continuous Integration systems (e.g., GitLab)

• Familiarity with Confluence, JIRA, Xray

• Proven experience integrating automated tests into CI/CD pipelines

• Strong analytical skills to identify patterns, edge cases, regressions, and usability issues

• Excellent communication skills to collaborate effectively with cross-functional teams

Nice-to-Have Qualifications

• ISTQB certification (Test Analyst or Advanced Level Technical Test Analyst) or equivalent knowledge

• Experience with component testing using tools like Storybook, Jest, or Testing Library

• Familiarity with Playwright Test Reporter and Playwright Trace Viewer for advanced debugging

• Understanding of performance testing approaches and related tooling

• Awareness of accessibility testing tools and practice

What we offer

• Permanent contract

• B2B - Paid holiday of 30 days/year

• Remote days: flexible in a week

• Private healthcare, Multisport Card

• Flat startup structure with international team

Nice-to-Have Qualifications

Recruitment language: English&Polish1 | Online Meeting with QA Specialist (30-45 mins)

2 | Online Meeting with Team Manager or CTO (30-45 mins)

3 | HR meeting to finalize the contract details

How we work and what you get:

Our main HQ is based in Warsaw. We are looking for a person based in Warsaw.We offer two types of contracts (preferred B2B or UoP, based on your preferences). On top of a contract's usual salary and benefits, you will have access to private healthcare and a Multisport card.

How to apply:

Send us your CV (and optionally a cover letter) in English explaining why you decided to apply. We will be in touch if we believe you would be a good fit. Please keep in mind that we only contact a select group of candidates. CTHINGS.CO is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

CTHINGS.CO sp. z o.o.

At CTHINGS.CO, we're on a mission to support the digital transformation of industries and municipalities. We design, develop, and manufacture 5G IoT hardware, software, sensors, cloud platforms, and web applications that employ bleeding-edge technology and components to monitor, capture, transmit, and analyze data. In addition, we dedicate a lot of our time to creating a robust Orchestration Platform for IoT applications. We're a diverse, multicultural, and inclusive team that is constantly evolving and expanding, and we're looking for a highly skilled and experienced Senior Backend Engineer to join us on this exciting journey.

Published: 22.07.2025

Office location