Korean Linguistic Evaluator & Functional Tester

Welo Global; Portland (OR); On-site; USD 60,000 - 90,000; Full time

Job summary

Welocalize is seeking a native-level Korean speaker for a hands-on, on-site role to evaluate pre-release AI models and test localization quality. You will judge accuracy, naturalness, and appropriateness, and ensure parity with English functionality across devices and scripts.

Work in a private, secure Welocalize office space; remote work is not possible due to confidentiality. You will document issues clearly and re-test after fixes, contributing language and usability insights to the program.

Qualifications

• Native-level Korean, written and spoken.
• Comfort with a smartphone and a laptop.
• Strong eye for detail and objective judgement.
• Ability to follow a detailed test script and explain issues in English.
• Experience in software testing or localization QA is a plus.

Responsibilities

• Review pre-release AI model output in Korean and judge accuracy, naturalness, and overall quality against source material.
• Test Korean experience against English, confirm feature parity and non-Latin/script handling.
• Spot display or localization issues and document them for developers.
• Write up issues with steps, device, locale, build ID, and evidence, and re-test after fixes.
• Provide language-specific usability and navigation feedback.

Skills

Korean language

Detail-oriented

Independent worker

English communication

Tools

Smartphone

Laptop

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 Korean 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 Korean, 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 Korean 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 Korean 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 Korean, 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 Korean speaker with an eye for detail and an interest in how language and technology meet, we'd like to hear from you.