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HomeCompaniesWeloglobalData Annotation Specialist - South Bay, CA (On Site)

Data Annotation Specialist - South Bay, CA (On Site)

Weloglobal · Sunnyvale, CA · On Site · Active · Lever

Job facts

FieldValue
CompanyWeloglobal
TitleData Annotation Specialist - South Bay, CA (On Site)
Normalized title-
Department / teamWelo Data - AI Services / Data Annotation
LocationSunnyvale, CA, United States
Work modelOn Site
Employment typeFull Time
Salary-
Statusactive
ATS providerLever
Posted / first seen2025-09-22 / 2026-05-29
Changed / last seen2026-05-29 / 2026-06-06

Related slices

PageWhat it containsOpen
Company jobsActive postings from Weloglobal.Open
Company breakdownsRole, location, ATS, and work model facets for this company.Open
ATS provider jobsActive postings observed through Lever.Open
Provider filtered searchThe same provider as a filtered job collection.Open
City jobsActive postings in Sunnyvale.Open
Department jobsActive postings in Welo Data - AI Services.Open
Work model jobsActive On Site postings.Open
Lifecycle eventsOpen, update, close, and reopen events for this posting.Open
Original postingCanonical source or apply URL captured from the ATS.Open

Linked records

CompanyWeloglobal
Source2de9659a-8a12-48c4-a4ac-ed217a8126d1
ATS providerLever

Description

OVERVIEW Welo Data is looking for a skilled Data Analyst to join our team and contribute to advancing AI technologies. This role offers a unique opportunity to engage directly with cutting-edge AI products, supporting the refinement and performance of machine learning models through precise data analysis and quality assurance. Project Details Job Title: Data Analyst Location: Bay Area, CA (Onsite) Hours: Full-time, 40 hours per week Employment Type: W2 Full-Time Employee Must have valid work authorization in the US (Welocalize does not sponsor VISAs at this time). This role is an incredible chance to be at the forefront of AI technology, helping shape the future by testing new products, updating machine learning models, and ensuring high-quality data for impactful AI solutions. Please note that in order to verify work authorization as is required by Federal law (I-9 process), all new employees must complete a live video verification with their selected IDs and provide photos of these selected IDs within their first 3 days of employment. To know more details (Click here) In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.  In addition, we employ anti-fraud checks to ensure all candidates meet the requirements of the program. As a trusted global transformation partner, Welocalize accelerates the global business journey by enabling brands and companies to reach, engage, and grow international audiences. Welocalize delivers multilingual content transformation services in translation, localization, and adaptation for over 250 languages with a growing network of over 400,000 in-country linguistic resources. Driving innovation in language services, Welocalize delivers high-quality training data transformation solutions for NLP-enabled machine learning by blending technology and human intelligence to collect, annotate, and evaluate all content types. Our team works across locations in North America, Europe, and Asia serving our global clients in the markets that matter to them. www.welocalize.com To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions. Key Responsibilities Test new AI products and provide actionable feedback to improve functionality and user experience. Conduct detailed data annotation and quality assurance of natural language datasets following established guidelines. Collaborate in updating and refining machine learning models to boost accuracy and effectiveness. Analyze data for consistency, relevancy, and alignment with project goals. Perform quality control to identify and report anomalies, error patterns, and discrepancies. Use basic data analysis methods to extract insights and support continuous improvement. Prepare clear and concise reports on findings, including observations on data quality, AI model performance, and user feedback. Preferred Qualifications University degree in linguistics, translation, or a related field. 3-5 years of professional linguistics experience. Strong analytical skills with the ability to detect patterns and anomalies. Excellent communication skills and the ability to work collaboratively in a fast-paced environment. Adaptability to evolving priorities and project requirements. Benefits Paid Sick Time & Paid Holiday (combined): 15 days Paid Holidays: Memorial Day and Labor Day Medical Insurance (subject to eligibility requirements) Dental Insurance Vision Insurance Health Savings Account (HSA) Voluntary Life Insurance Accident, Critical Illness, and Hospital Indemnity Insurance Telemedicine Benefit 401(k) Retirement Plan Employee Assistance Program

Full job record

Job ID29f071b3f40bc2d51d6111e8239c5c49b8d78c47
Org IDaaa67d5b-8ec7-460b-a038-61d104e5a3fa
Source ID2de9659a-8a12-48c4-a4ac-ed217a8126d1
Board ID2de9659a-8a12-48c4-a4ac-ed217a8126d1
Providerlever
Provider Job Key7bb0b5e7-edb8-42f8-8a47-9a5c4f680cbb
TitleData Annotation Specialist - South Bay, CA (On Site)
Normalized Title
Statusactive
Activeyes
Location TextSunnyvale, CA
DepartmentWelo Data - AI Services
TeamData Annotation
Employment TypeFull Time
Workplace Typeon_site
Remote Policy
CountryUnited States
RegionCA
CitySunnyvale
Salary Raw
Salary Min
Salary Max
Salary Currency
Salary Period
Source URLhttps://jobs.lever.co/weloglobal/7bb0b5e7-edb8-42f8-8a47-9a5c4f680cbb
Apply URLhttps://jobs.lever.co/weloglobal/7bb0b5e7-edb8-42f8-8a47-9a5c4f680cbb/apply
First Seen At2026-05-29 06:57:57Z
Last Seen At2026-06-06 19:47:59Z
Last Checked At2026-06-06 19:47:59Z
Last Changed At2026-05-29 06:57:57Z
Inactive At
Source Posted At2025-09-22 14:59:09Z
Source Updated At
Raw Payload Uris3://job-postings-prod-raw-590183727216/raw/provider=lever/board=weloglobal/date=2026-06-06/2026-06-06T19-47-57-590Z-a8314e8556cf13e2132f166d6aa55bcdff4868d19f6a4b0a04468a0297f7ea58.json
Event Fields
{
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  "source_hash": "a55062580781d632f75c6622f99c7cdd4a4955a499ef818d6ff1c3e89d06ae98",
  "last_changed_at": "2026-05-29T06:57:57.107Z",
  "active_status": "active"
}
Parsed Structured
{
  "language": "en",
  "location": {
    "raw": "Sunnyvale, CA",
    "city": "Sunnyvale",
    "region": "CA",
    "country": "United States",
    "is_remote": false,
    "confidence": 0.9
  },
  "salary_max": null,
  "salary_min": null,
  "inferred_at": "2026-06-06T19:47:59.458Z",
  "launch_scope": {
    "reason": "english_us_canada",
    "included": true,
    "language": "en",
    "location": {
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      "city": "Sunnyvale",
      "region": "CA",
      "country": "United States",
      "is_remote": false,
      "confidence": 0.9
    },
    "countries": [
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  },
  "remote_policy": null,
  "salary_period": null,
  "workplace_type": "on_site",
  "salary_currency": null
}
Extensions
{}
Native Structured
{
  "lists": [
    {
      "text": "Key Responsibilities",
      "content": "<li>Test new AI products and provide actionable feedback to improve functionality and user experience.</li><li>Conduct detailed data annotation and quality assurance of natural language datasets following established guidelines.</li><li>Collaborate in updating and refining machine learning models to boost accuracy and effectiveness.</li><li>Analyze data for consistency, relevancy, and alignment with project goals.</li><li>Perform quality control to identify and report anomalies, error patterns, and discrepancies.</li><li>Use basic data analysis methods to extract insights and support continuous improvement.</li><li>Prepare clear and concise reports on findings, including observations on data quality, AI model performance, and user feedback.</li>"
    },
    {
      "text": "Preferred Qualifications",
      "content": "<li>University degree in linguistics, translation, or a related field.</li><li>3-5 years of professional linguistics experience.</li><li>Strong analytical skills with the ability to detect patterns and anomalies.</li><li>Excellent communication skills and the ability to work collaboratively in a fast-paced environment.</li><li>Adaptability to evolving priorities and project requirements.</li>"
    },
    {
      "text": "Benefits",
      "content": "<li>Paid Sick Time &amp; Paid Holiday (combined): 15 days</li><li>Paid Holidays: Memorial Day and Labor Day</li><li>Medical Insurance (subject to eligibility requirements)</li><li>Dental Insurance</li><li>Vision Insurance</li><li>Health Savings Account (HSA)</li><li>Voluntary Life Insurance</li><li>Accident, Critical Illness, and Hospital Indemnity Insurance</li><li>Telemedicine Benefit</li><li>401(k) Retirement Plan</li><li>Employee Assistance Program</li>"
    }
  ],
  "country": "US",
  "createdAt": 1758553149892,
  "updatedAt": null,
  "categories": {
    "team": "Data Annotation",
    "location": "Sunnyvale, CA",
    "commitment": "Full Time",
    "department": "Welo Data - AI Services",
    "allLocations": [
      "Sunnyvale, CA",
      "Menlo Park, CA"
    ]
  },
  "salaryRange": null,
  "workplaceType": "onsite"
}
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GET https://api.bluedoor.sh/job-postings/v1/jobs/29f071b3f40bc2d51d6111e8239c5c49b8d78c47?include=descriptionJSON
GET https://api.bluedoor.sh/job-postings/v1/orgs/aaa67d5b-8ec7-460b-a038-61d104e5a3faJSON
GET https://api.bluedoor.sh/job-postings/v1/sources/2de9659a-8a12-48c4-a4ac-ed217a8126d1JSON
GET https://api.bluedoor.sh/job-postings/v1/jobs/29f071b3f40bc2d51d6111e8239c5c49b8d78c47/eventsJSON