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Salary
≈ $27k – $74k per year (Estimated)
Location
In office (Spain)
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 23, 2026. First seen by Alion on Oct 20, 2026.

Overview
Company
Impact
Profile match
Welo Data works with technology companies to provide datasets that are high-quality, ethically sourced, relevant, diverse, and scalable to supercharge their AI models. As a Welocalize brand, Welo Data leverages over 25 years of experience in partnering with the world's most innovative companies and brings together a curated global community of over 500,000 AI training and domain experts to offer services that span:- Annotation and Labeling: Transcription, summarization, image and video classification and labeling.- Enhancing LLMs: Prompt engineering, SFT, RLHF, red teaming and adversarial model training, model output ranking.- Data Collection and Generation: From institutional languages to remote field audio collection.- Relevance and Intent: Authoritative relevance solutions across any discovery target, with mature operating models and a highly trained global workforce.- The Welo Data advisory team members bring practical, applied AI expertise to your projects. They have both strong academic experience and a deep working knowledge of state-of-the-art AI tools, frameworks, and best practices.

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Job Responsibilities:

Job Title Linguistic QA Tester

Department Staffing/Quality Management

Reports To Senior Project Manager

MAIN PURPOSE OF JOB

As a Linguistic QA Tester, you will primarily be proofreading and editing content already localized to your native language, making sure you catch any errors in the content, such as: grammar, typos, syntax, punctuation, capitalization, political incorrectness, inconsistencies, and extra spaces between words or characters. You will sometimes be translating content from English to your native language. You will also be checking UIs for functional issues.

MAIN DUTIES

The following is a non-exhaustive list of responsibilities and areas of ownership for this role:

  • Write and report relevant bugs and errors using best practices through internal database system.
  • Ability to under and prioritize task and issues quickly and efficiently.
  • Native language skills and cultural awareness of native country.
  • Good oral and written communication.
  • Highly organized with attention to detail and a commitment to quality.
  • QA various products in by accurately following testing instructions and test cases
  • Discover and report defects (bugs) using client specific bug tracking tools
  • Evaluate translations in the context of software, mobile apps and documentation
  • Be a subject matter expert for linguistic issues in the target language; be able to research and resolve linguistic questions
  • Adhere to project-specific quality standards, trademarks, style guides and client-preferred checklists and glossaries
  • Troubleshoot basic problems; be able to communicate effectively and escalate testing issues
  • Complete assigned tasks in a quality and timely manner

REQUIREMENTS

Education Level

  • Bachelor's degree (B. A.) from a college or university in related field, or equivalent combination of education and experience.

Experience

  • Ability to work onsite and/or well as client location
  • Native-level or fully bilingual fluency (both spoken and written language) in required language(s)
  • Up-to-date awareness of current and common technical language usage in the target language
  • Strong English skills, both written and verbal
  • Experience with MS applications (Outlook, Word, Excel, PowerPoint);
  • Ability to navigate networks and websites with different browsers
  • Basic knowledge of PC-hardware (desktop and laptop)
  • Basic knowledge of smart phones (iPhone or Android)

Other Skills

  • Be organized and able to work in a fast paced environment
  • Candidates with Localization/QA/translation experience or with advanced computer skills are preferred

Additional Job Details:

Work Environment requirements:

  • Must be able to be in a stationary positionfor extended periods of time
  • Must be able to use a computer mouse for extended periods of time
  • Must be able to keyboard for extended periods of time
  • Position may be exposed to content that could be construed as offensive, including but not limited to sexual, health related, racial or violent.
  • Will be exposed to a computer monitor/screen for extended periods of time
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