Data QA Engineer

Jobgether; Schweiz; Remote; CHF 90,000 - 125,000; Full time

Benefits offered by this job

35 days of paid holidays

Flexible, location-independent working

Global, multicultural team

Modern open-source technology

Autonomy and ownership

Collaborative environment

Job summary

Jobgether is seeking a Data QA Engineer for a partner company, focused on data quality and testing across web-scraped data and AI-assisted solutions. You will ensure data accuracy, completeness, and reliability, translating requirements into testable quality standards.

You will apply exploratory and automated testing, with Python, SQL, and modern tools to report results, metrics, and visualizations. You’ll collaborate with managers, developers, and clients in a globally distributed team,

Qualifications

• 5+ years in QA or data testing roles.
• Proficiency in Python for data analysis, especially Pandas and notebooks.
• SQL skills in at least one relational DB environment.
• Solid understanding of web tech: HTML, XPath, JSON, HTTP, CSS.
• Experience testing HTTP/REST APIs and validating responses.

Responsibilities

• Translate data extraction and web-scraping requirements into QA criteria and strategies.
• Perform exploratory, manual, and automated testing to ensure data quality.
• Validate extracted datasets against customer specs and identify defects.
• Document defects with reproducible steps and evidence for developers.
• Use statistics and visualizations to assess completeness, accuracy, and drift.
• Prepare quality reports and metrics for internal teams and customers.
• Define test scope, untested areas, and associated risks for projects.
• Collaborate with managers and customers to clarify requirements before QA starts.
• Contribute to test automation framework development and quality tooling improvements.
• Identify and implement QA process enhancements, including browser extensions and UI testing tools.

Skills

Python

SQL

Pandas

Jupyter

REST APIs

Data quality

Exploratory testing

Automation frameworks

Tools

Scrapy

Testing frameworks

Job description

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Data QA Engineer based in Switzerland.

As a Data QA Engineer, you will play a key role in ensuring the accuracy, completeness, and reliability of data delivered to customers.
You will work with web data extraction projects and AI-assisted solutions, translating customer requirements into clear, measurable quality standards.
Rather than treating quality assurance as a final checkpoint, you will help identify potential issues early and prevent defects before they reach production.
Combining exploratory testing, data analysis, and automation, you will investigate anomalies and provide actionable insights to developers and project teams.
You will use Python, SQL, and modern testing tools to assess data quality and communicate results through meaningful reports, metrics, and visualizations.
Working closely with project managers, developers, and clients, you will have the autonomy to improve testing processes and strengthen quality practices.
This is an opportunity to join a globally distributed, multicultural team that values ownership, continuous improvement, and flexible ways of working.

Accountabilities:

• Translate customer data extraction and web scraping requirements into clear, testable criteria and comprehensive QA strategies, taking ownership of quality assurance from the beginning of new projects.

• Perform exploratory, manual, and visual testing, complemented by automated testing where it provides measurable value.

• Execute test cycles on extracted datasets to validate compliance with customer specifications and identify inconsistencies, inaccuracies, missing information, and other defects.

• Document defects clearly and thoroughly, providing reproducible steps and supporting evidence so developers can investigate and resolve issues efficiently.

• Apply descriptive statistics, data summaries, and visualizations to assess completeness, accuracy, consistency, and data drift.

• Prepare quality reports and scoring metrics that communicate results honestly to internal teams and, where appropriate, customers.

• Clearly identify the scope of testing, any untested areas, and the associated risks to support informed project decisions.

• Collaborate with project managers and customers to clarify ambiguous requirements and ensure that expectations are measurable and testable before QA begins.

• Contribute to the development and improvement of test automation frameworks, with an emphasis on coverage, reliability, and performance.

• Identify, propose, and implement improvements to QA processes and tooling, including browser extensions, spreadsheet add-ons, and user-interface-based testing tools.

• Work independently while maintaining close collaboration with QA leadership, developers, and project managers to uphold quality standards throughout delivery.

Requirements:

• At least 5 years of experience as a QA Engineer or in a comparable role involving software testing, data testing, or data quality assurance.

• Proficiency in Python for data analysis and validation, preferably using Pandas and Jupyter notebooks.

• Basic to intermediate SQL skills, including the ability to query and validate data in at least one relational database environment.

• Strong understanding of web technologies and protocols, including HTML, XPath, JSON, HTTP, and CSS.

• Experience testing HTTP/REST APIs and validating their responses against expected requirements.

• Solid knowledge of test case design, test data management, and practical approaches to exploratory and automated testing.

• Understanding of data quality principles, particularly completeness, accuracy, consistency, and data drift.

• Experience working in an Agile environment, such as Scrum or Kanban, and collaborating effectively with developers.

• Familiarity with AI and large language model (LLM) tools to improve test case generation and accelerate data validation workflows.

• A proactive, detail-oriented mindset with strong ownership of project quality and the confidence to uphold standards under delivery pressure.

• Ability to learn new technologies quickly, understand complex project requirements, and adapt testing strategies to different domains.

• Strong written and spoken English communication skills, with the ability to explain technical findings clearly and precisely.

Nice to have:

• Practical knowledge of Scrapy or other Python-based web scraping frameworks.

• Experience working with test automation frameworks.

• An interest in data science concepts and their application to data analysis and validation.

• Enthusiasm for exploring AI and LLM-powered approaches to improve data quality assurance.

Benefits:

• 35 days of paid holidays, supporting substantial time away from work.

• Flexible, location-independent working, with the freedom to work from where you are most productive.

• Global, multicultural team: Join a self-motivated, progressive, and internationally distributed team.

• Modern technology: Work with cutting-edge open-source technologies and tools.

• Autonomy and ownership: Contribute ideas, take responsibility for improvements, and help shape QA processes and tooling.

• Collaborative environment: Work closely with technical and project teams to solve meaningful data quality challenges.

• Additional details regarding salary, healthcare, retirement plans, and other benefits were not specified in the original job description.