Meridial Marketplace, by Invisible · 2 weeks ago
Linguistics Expert (SME) - Freelance Project
United States
Contract
Remote
Senior Level
$25/hr - $100/hr
5+ years expMeridial Marketplace, by Invisible is seeking a highly experienced Linguistics professional consultant for AI training data projects. The role involves defining success criteria, reviewing outputs, and providing guidance to improve quality and speed, contributing directly to the delivery of annotated datasets that meet high technical standards.
Computer Software
Responsibilities
Define domain-specific quality success metrics (e.g., accuracy of transcription, consistency in linguistic annotation schemes, phonetic transcription accuracy, adherence to grammatical frameworks, correct use of linguistic markup standards such as IPA or Universal Dependencies)
Develop project-specific SOPs, QA rubrics, and reference materials for the specific purpose of meeting client technical standards
Review project outputs (transcriptions, annotations, language datasets) against technical standards, flagging and correcting defects before client delivery
Perform structured QA passes on daily/weekly deliverables; flag, track, and resolve defects quickly to hit delivery deadlines
Return work to contractors with precise remediation notes
Provide advisory input on tools, workflows, and processes to meet quality benchmarks
Handle spec changes and edge-case scenarios — e.g., annotation of rare dialects or ambiguous language constructs — drafting acceptance criteria or workarounds
Curate example libraries of 'gold standard' linguistic data for calibration and comparability to agreed reference samples
Participate in vetting and assessing technical contractor talent for specific projects, including transcription accuracy tests and linguistic annotation evaluations
Review sample work from contractors and provide precise, actionable written feedback to improve outputs
Create targeted training or calibration resources — e.g., phonetic transcription guidelines, morphological analysis instructions, disambiguation procedures
Advise on technical scoping and requirements during project setup, including selection of annotation frameworks and language coverage specifications
Provide expert guidance for edge cases, technical exceptions, and specification changes
Contribute to post-project reviews to capture lessons learned and improve future standards
Identify and summarize client model observations and insights (e.g., frequent misannotations, language-specific bias patterns)
Build dashboards or trackers with defect categories and recurrence to surface production insights that improve project outcomes
Conduct post-mortems, analyze defect trends, and propose process tweaks or training refreshers
Qualification
Required
Advanced degree (ideally PhD) in Linguistics, Applied Linguistics, or a closely related field, with demonstrable research or industry impact
5+ years professional expertise in linguistic analysis, annotation standards, and language data quality control
Proven ability to set, enforce, and maintain high technical standards in linguistic data creation projects
Strong communication skills for delivering clear technical guidance
Experience producing technical documentation, quality rubrics, or training resources
Ability to work within fixed project timelines and scope
Strong attention to detail, documentation discipline, and commitment to accuracy and consistency
Fluency in spoken and written English
Preferred
Additional language proficiency preferred
Benefits
Health insurance
PTO
Company
Meridial Marketplace, by Invisible
We are the AI training and scaling partner for the leading foundation model providers, enterprises, and governments, bridging the gap between AI potential and production.
201-500 employees
Funding
Current Stage
Growth StageCompany data provided by crunchbase