Polish Linguistic Evaluator & Functional Tester

Weloglobal

Barcelona, Spain

On-site

Who this role is best for

Aimed at mid-to-senior level evaluators and testers with native Polish language skills who enjoy detail-oriented work and on-site collaboration.

Best fit for

Candidates with native Polish language proficiency and strong attention to detail in linguistic evaluation
— “native-level Polish speaker to join a confidential, large-scale AI and consumer technology programme”
Individuals experienced in testing AI output on real devices and assessing cultural appropriateness
— “evaluating a pre-release AI model in your language, and testing how the product actually performs on a client-supplied device”
Professionals who enjoy shaping technology before public release through rigorous judgment
— “your judgement shapes how well it works before anyone else uses it”

Things to consider

The role requires on-site presence and may not allow remote flexibility
— “hands-on, on-site role”
The position likely involves working with a major global client and their specific technologies
— “for a major global technology and communications client”

How to stand out

Highlight experience in linguistic evaluation and AI model testing in your language portfolio
— “evaluating a pre-release AI model in your language”
Showcase your ability to fact-check and assess cultural alignment in multilingual content
— “Review pre-release AI model output in Polish and judge it on accuracy, naturalness, appropriateness, and overall quality”
Emphasize your background in AI, automation, or localization technologies
— “Welocalize combines AI, automation, and human expertise”
Demonstrate familiarity with testing on real-world devices like smartphones and smart glasses
— “testing how the product actually performs on a client-supplied device”
Position yourself as someone who identifies subtle language nuances and provides actionable feedback
— “would a native speaker really say it this way?”

Pace · SteadyCollaboration · MediumAutonomy · MediumDecision Impact · Individual

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

evaluated pre-release AI model output
tested product performance on real devices
identified and reported issues

Typical background

native-level Polish speakerexperience in AI and consumer technology

Skills & requirements

Required

Native-level PolishAI Model EvaluationFunctional TestingPre-release AI Model Output ReviewAccuracy And Naturalness AssessmentFact-checking

Preferred

Smartphone TestingSmart Glass Testing

Stack & domain

Polish LanguageAI Model EvaluationFunctional TestingSmartphone TestingSmart Glass TestingAttention To DetailAIConsumer TechnologyLocalization

About the role

Original posting from Weloglobal via Lever

About Welocalize
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.

Source: Weloglobal careers (Lever)