A Czech speaker with strong written communication skills * Experienced in data labelling, annotation, content review, or similar detail-oriented work (1+ year preferred) * A Bachelor's degree holder ...
Quick apply
A Czech speaker with strong written communication skills * Experienced in data labelling, annotation, content review, or similar detail-oriented work (1+ year preferred) * A Bachelor's degree holder ...
Quick apply
A Czech speaker with strong written communication skills * Experienced in data labelling, annotation, content review, or similar detail-oriented work (1+ year preferred) * A Bachelor's degree holder ...
A Czech speaker with strong written communication skills * Experienced in data labelling, annotation, content review, or similar detail-oriented work (1+ year preferred) * A Bachelor's degree holder ...
Quick apply
A Czech speaker with strong written communication skills * Experienced in data labelling, annotation, content review, or similar detail-oriented work (1+ year preferred) * A Bachelor's degree holder ...
A Czech speaker with strong written communication skills * Experienced in data labelling, annotation, content review, or similar detail-oriented work (1+ year preferred) * A Bachelor's degree holder ...
Quick apply
A Czech speaker with strong written communication skills * Experienced in data labelling, annotation, content review, or similar detail-oriented work (1+ year preferred) * A Bachelor's degree holder ...
San Francisco, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
San Francisco, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Encino, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Encino, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Los Angeles, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Los Angeles, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Burlingame, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Burlingame, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Sunnyvale, CA · On-site
Must be fluent in verbal and written in English and any one (Arabic, Bulgarian, Catalan, Chinese, Chinese, Chinese, Croatian, Czech, Danish, Dutch, English, English,English ,Estonian, Filipino ...
Sunnyvale, CA · On-site
Must be fluent in verbal and written in English and any one (Arabic, Bulgarian, Catalan, Chinese, Chinese, Chinese, Croatian, Czech, Danish, Dutch, English, English,English ,Estonian, Filipino ...
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Quick apply
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Burlingame, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Quick apply
Burlingame, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Sunnyvale, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Sunnyvale, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Sunnyvale, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Sunnyvale, CA · On-site
$26 - $28/hr
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Sunnyvale, CA · On-site
Must be fluent in verbal and written in English and any one (Arabic, Bulgarian, Catalan, Chinese, Chinese, Chinese, Croatian, Czech, Danish, Dutch, English, English,English ,Estonian, Filipino ...
Sunnyvale, CA · On-site
Must be fluent in verbal and written in English and any one (Arabic, Bulgarian, Catalan, Chinese, Chinese, Chinese, Croatian, Czech, Danish, Dutch, English, English,English ,Estonian, Filipino ...
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Quick apply
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Sunnyvale, CA · On-site
$26 - $28/hr
Contribute to team calibrations and quality alignment sessions What We're Looking For * -level fluency in Czech * Strong written communication skills and fundamentals * 1 year of work experience in ...
Sunnyvale, CA · On-site
$26 - $28/hr
Contribute to team calibrations and quality alignment sessions What We're Looking For * -level fluency in Czech * Strong written communication skills and fundamentals * 1 year of work experience in ...
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Quick apply
Native-level fluency in Czech * Strong written communication skills and language fundamentals * 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor's degree ...
Novato, CA · On-site +1
B1) and Czech/Slovak (min. B2), another language an advantage Excellent communication skills Internship welcome to a similar position ABB offers: An expanding company with a strategy of further ...
Novato, CA · On-site +1
B1) and Czech/Slovak (min. B2), another language an advantage Excellent communication skills Internship welcome to a similar position ABB offers: An expanding company with a strategy of further ...
Novato, CA · On-site +1
Required Czech or Slovak language Benefits We also offer our employees the following benefits: * Flexible working hours * Option to work from home (Home Office) with a financial contribution * Annual ...
Novato, CA · On-site +1
Required Czech or Slovak language Benefits We also offer our employees the following benefits: * Flexible working hours * Option to work from home (Home Office) with a financial contribution * Annual ...
Santa Clara, CA · On-site
$22 - $30.28/hr
Foxconn Czech Republic * Unigen Newark * Unigen Hanoi * Kingston Fountain Valley * Kingston Taiwan * CRV Cokeva * Perform a sheet-to-floor audit of all assets the client has recorded at the site
Quick apply
Santa Clara, CA · On-site
$22 - $30.28/hr
Foxconn Czech Republic * Unigen Newark * Unigen Hanoi * Kingston Fountain Valley * Kingston Taiwan * CRV Cokeva * Perform a sheet-to-floor audit of all assets the client has recorded at the site
Rancho Cucamonga, CA · On-site
$130K/yr
TRIOPTICS products are sold by distributers in India, Israel, Russia, Czech Republic, Turkey, United Kingdom, and Vietnam. TRIOPTICS became a member of the Jenoptik photonics group in 2020. TRIOPTICS ...
Rancho Cucamonga, CA · On-site
$130K/yr
TRIOPTICS products are sold by distributers in India, Israel, Russia, Czech Republic, Turkey, United Kingdom, and Vietnam. TRIOPTICS became a member of the Jenoptik photonics group in 2020. TRIOPTICS ...
| Aspect | Czech | Slovak |
|---|---|---|
| Credentials | Typically Czech language certifications, language proficiency tests | Slovak language certifications, similar language proficiency tests |
| Work Environment | Office, government, education, and corporate sectors in Czech Republic | Similar sectors in Slovakia, often in government, education, and business |
| Industry Usage | Used in Czech companies, government, and media | Used in Slovak companies, government, and media |
| Search & Comparison | Commonly compared due to language and regional proximity | Often compared with Czech for language and cultural similarities |
The main difference between Czech and Slovak lies in language, cultural context, and regional usage. Czech professionals typically work in Czech Republic, while Slovak professionals are based in Slovakia. Despite similarities, certifications and work environments are tailored to each country's standards.
The most popular types of Czech jobs in California are:
For Czech jobs in California, the most frequently searched job titles are:
The top searched job categories for Czech jobs in California are:
Cities in California with the most Czech job openings:

$26 - $28/hr
Full-time
Medical, Dental, Vision, Life, Retirement, PTO
Re-posted 13 days ago
What if your language expertise could help improve the speech and voice AI systems used by millions of people worldwide?
WHAT YOU’LL DO
• Execute Data labelling and annotation tasks across speech and voice datasets.
• Work with audio and language data, including transcription, categorization, and tagging.
YOU ARE A FIT IF YOU’RE…
• A Czech speaker with strong written communication skills
• Experienced in data labelling, annotation, content review, or similar detail-oriented work (1+ year preferred)
• A Bachelor's degree holder
PROJECT DETAILS
• Location: 100% Onsite (Bay Area, Seattle, NYC, or client-dependent locations)
• Employment Type: W2 Full-Time Employee
• Hours: 40 hours per week
• Work Authorization: Must be authorized to work in the U.S. (no visa sponsorship available)
• Eligible Locations: NYC, Seattle, Bellevue, Redmond, San Francisco, Sunnyvale, Burlingame, Austin, Los Angeles, Washington DC, Chicago, and Boston
BENEFITS
• $26–$28 per hour
• Paid Vacation (6 days)
• Paid Company Holidays
• Paid Sick Leave
• Employee Assistance Program
• Health Savings Account (HSA)
• 401(k) Retirement Plan
• Additional Voluntary Benefits (Life, Accident, Critical Illness, etc.)
ADDITIONAL BENEFITS (Upon Eligibility)
• Medical, Dental, and Vision Insurance
• Free Breakfast, Lunch, and Dinner (where applicable)
• Stocked Micro-Kitchens with Snacks and Beverages
• Commuter Benefits, Including Shuttles and Bike-to-Work Options
• Unique Campus Amenities Depending on Location
From Welo Data
From Welo Data
Welo Data is a global AI data services company powering the next generation of AI. We build, annotate, and validate the training datasets that make AI models accurate, safe, and ready for the real world — across languages, cultures, and domains.
Our team of experts spans the globe, combining deep technical knowledge with a human-centered approach. If you want your work to shape how AI understands the world, you'll find your place here.
From Welo Data
Our Strength is derived from Winning Together. Welo Data is unequivocally committed to developing and fostering a workplace and organizational culture that values the diversity of thought and perspective delivered by a diverse global workforce operating within an inclusive organization.
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Data services and translation services
1,001 - 5,000 Employees
New York, NY, US