Apply on Employer Site

Invisible Technologies · 1 month ago

Linguistics Expert (SME) - Freelance Project

United States

Full-time

Remote

Senior Level

$25/hr - $100/hr

5+ years exp

Agency is seeking a highly experienced Linguistics professional consultant to serve as a consultant on AI training data projects. The role involves defining success criteria, reviewing outputs, and providing guidance to improve quality and speed, directly contributing to the successful delivery of domain-specific annotated datasets.

Data Center AutomationInformation TechnologyProductivity ToolsProject Management

H1B Sponsor Likely

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

Linguistic analysisQuality controlTechnical documentationPhonetic transcriptionAnnotation standardsAdditional language proficiencyFluency in EnglishCommunicationAttention to detailProject management

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

Invisible Technologies

Glassdoor3.9

Invisible Technologies makes AI work. Our platform cleans, labels, and structures company data so it’s ready for AI.

Founded in 2015

San Francisco, California, USA

201-500 employees

https://www.invisible.co/

H1B Sponsorship

Invisible Technologies has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (9)