Polish Linguistic Evaluator & Functional Tester

Welocalize, Inc.; Barcelona; On-site; EUR 24,000 - 36,000; Full time

Job summary

Welocalize, Inc. is seeking a native-level Polish QA tester for an on-site, confidential AI and consumer technology programme. You will evaluate pre-release AI model output in Polish, verify accuracy, and test how it performs on client devices.

You will compare Polish and English experiences, check localization accuracy, and document issues clearly for developers. Remote work is not possible; on-site presence is required.

Qualifications

• Native-level or bilingual Polish, written and spoken, with daily use.
• Confident with a smartphone and a laptop; comfortable with iOS and Android.
• Attention to detail and objective judgment when assessing quality.
• Ability to follow a detailed test script and explain issues in English.

Responsibilities

• Review pre-release AI model output in Polish and judge it on accuracy and quality.
• Test the Polish experience against English, ensuring parity and non-Latin script handling.
• Identify display or localization errors and document them clearly for developers.
• Re-test after fixes to confirm resolution and quality improvements.
• Provide insights on navigation and nuance from a native Polish perspective.
• Work on-site in a private, secure Welocalize area; remote work is not possible.

Skills

Polish

Job description

AboutWelocalize

Welocalize, a Welo Global brand, serves localization teams through AI-enabled multilingual content solutions that enable enterprises to operate and scale globally. Welocalize combines AI, automation, and human expertise to support enterprises in more than 300 languages, enabling accurate, culturally aligned, and compliant multilingual content at scale.

Welocalize’s Opal Platform comprises patented technology designed to automate multilingual content and improve workflow performance for enterprises. Opal functions as an agentic system that orchestrates AI, automation, and human expertise to coordinate content workflows across the lifecycle, improving speed, scalability, and operational control for global enterprises. These solutions operate within a secure and compliant environment supported by seven ISO certifications. Welocalize is headquartered in New York with offices worldwide. welocalize.com

ROLE OVERVIEW

Welocalize is looking for a native-level Polish speaker to join a confidential, large-scale AI and consumer technology programme for a major global technology and communications client.

It’s a hands-on, on-site role that combines two things: evaluating a pre-release AI model in your language, and testing how the product actually performs on a client-supplied device — a smartphone and a next-generation smart glass. If you enjoy noticing the detail other people miss, this is work you’ll find satisfying.

Welocalize is looking for a native-level Polish speaker to join a large-scale AI and consumer technology programme.

It’s a hands-on, on-site role that combines two things: evaluating a pre-release AI model in your language, and testing how it performs on a real device. You’ll be among the first people to see this technology in Polish , and your judgement shapes how well it works before anyone else uses it.

If you enjoy noticing the detail other people miss, this is work you’ll find satisfying.

MAIN RESPONSIBILITIES

• Review pre-release AI model output in Polish and judge it on accuracy, naturalness, appropriateness, and overall quality — would a native speaker really say it this way? This includes fact-checking each response against the source material.

• Test the Polish experience against the English one: confirm feature parity, complete a full user journey using non-English input, and check the product handles non-Latin script, diacritics, right-to-left text, and mixed-language input correctly.

• Spot any display problem (text cut off, overflowing, or rendering badly) and any localization error — a wrong date, number, currency, unit, or a string left untranslated.

• Write up each issue clearly so a developer can reproduce it: the step taken, the device and operating system, the locale, the build ID, and supporting evidence. Re-test once a fix lands to confirm it’s resolved.

• Share your perspective as a native-level speaker on navigation, usability, and the language-specific nuance only a fluent speaker would catch.

• Work on-site in a private, secure area of the Welocalize office. Because of the confidential, pre-release nature of the technology, a remote or work-from-home arrangement isn’t possible for this programme.

• Support other linguistic projects as needed.

JOB REQUIREMENTS

• Native-level or fully bilingual Polish , written and spoken, with a current feel for how the language is really used day-to-day — every day and technical.

• Confidence with a smartphone and a laptop, and comfort moving between iOS and Android.

• A sharp eye for detail and fair, objective judgement when assessing quality.

• The ability to work independently, follow a detailed test script and guideline, and explain an issue clearly in English.

• Previous experience in software or app testing, localization QA, or linguistic evaluation is a strong plus — though not essential if you bring the language skill and the attention to detail.

Welocalize helps the world’s leading brands speak to a global audience — and language testing sits at the heart of that. You’ll work alongside an experienced linguist and tester on technology most people won’t see for months, in a team that takes quality and precision seriously.

If you’re a native-level Polish speaker with an eye for detail and an interest in how language and technology meet, we’d like to hear from you.