Project Perseus | Data Quality Team Lead (Human-in-the-Loop AI)

Welo Global; Burlingame (CA); On-site; USD 85,000 - 100,000; Full time

Benefits offered by this job

Paid Vacation 6 days

Company Holidays 2 days

Medical, Dental, and Vision Insurance

Health Savings Account

401(k) Retirement Plan

Employee Assistance Program

Free Gourmet Food

Free snacks and beverages

Commuter Benefits

Job summary

Welocalize is seeking a Data Quality Lead to oversee teams of Data Quality Analysts in a 100% onsite role across multiple U.S. cities, including Burlingame. You will guide quality definition, measurement, and improvement in a human-in-the-loop environment, bridging analysts and stakeholders.

The role requires 5–8 years in data quality or AI/ML operations, 2+ years leading teams, and a university degree with strong English proficiency. Candidates with multilingual skills are encouraged to apply.

Qualifications

• 5–8 years of experience in data quality, QA, AI/ML operations, or related fields.
• 2+ years leading teams in data quality, QA, or AI/ML-related work at scale.
• Native-level English proficiency and a university degree.
• Proficiency in languages other than English preferred, with interest in French, Italian, German, Spanish, or Brazilian Portuguese.

Responsibilities

• Lead and support a team of Data Quality Analysts.
• Oversee operational performance across workflows and teams.
• Ensure team activities align with broader business objectives and program goals.
• Drive success of key initiatives across quality, delivery, and team performance.
• Own quality across workflows — including audits, calibrations, and feedback loops.
• Identify trends, risks, and gaps in model performance and data quality.
• Translate guidelines into clear team direction.
• Run calibrations and ensure consistency across reviewers.
• Partner with stakeholders to align on quality standards and expectations.
• Prioritize and support hiring of linguists and specialized talent as needed.
• Drive continuous improvement across processes, tooling, and evaluation methods.
• Step into edge cases and complex decisions when needed.
• Support team growth, coaching, and performance management.

Skills

Leadership

Data quality

Operational thinking

Stakeholder communication

Quality ownership

Ambiguity tolerance

Education

Bachelor’s degree or higher

Job description

Overview

Welo Data is looking for a Data Quality Lead to oversee teams of Data Quality Analysts supporting AI model evaluation and improvement.

This role is equal parts people leadership, quality ownership, and operational thinking.

You’ll be responsible for guiding teams through fast-changing work, ensuring high-quality output, and acting as a bridge between analysts and stakeholders. This is not just about managing throughput — it’s about shaping how quality is defined, measured, and improved in a human-in-the-loop environment.

Project Details

• Job Title: Data Quality Lead
• Hiring in: NYC, Seattle, Bellevue, Redmond, San Francisco, Sunnyvale, Burlingame, Austin, Los Angeles, Washington DC, Chicago, Boston
• Hours: Full-time, 40 hours per week
• Employment Type: W2 Full-Time Employee
• Pay rate: $43.50/ hour
• Contract Duration: 1-year contract with possibility of extension

Important : This is a 100% onsite position — remote work is not available for this role. To be considered, candidates must be located in or able to commute to one of the following cities: NYC, Seattle, Bellevue, Redmond, San Francisco, Sunnyvale, Burlingame, Austin, Los Angeles, Washington DC, Chicago, Boston. Please only apply if you meet this location requirement.

What You’ll Do

• Lead and support a team of Data Quality Analysts
• Oversee overall operational performance across workflows and teams
• Ensure team activities align with broader business objectives and program goals
• Drive the success of key initiatives across quality, delivery, and team performance
• Own quality across workflows — including audits, calibrations, and feedback loops
• Identify trends, risks, and gaps in model performance and data quality
• Translate ambiguous or evolving guidelines into clear team direction
• Run calibrations and ensure consistency across reviewers
• Partner with stakeholders to align on quality standards and expectations
• Prioritize and support hiring of linguists and specialized talent as needed
• Drive continuous improvement across processes, tooling, and evaluation methods
• Step into edge cases and complex decisions when needed
• Support team growth, coaching, and performance management

What We’re Looking For

• 5–8 years of experience in data quality, QA, AI/ML operations, or related fields
• 2+ years of experience leading teams in data quality, QA, or AI/ML-related work at scale
• Native-level English proficiency and a university degree (Bachelor’s or higher).
• Proficiency in languages other than English is preferred, with particular interest in candidates demonstrating bilingual mastery in French, Italian, German, Spanish, or Brazilian Portuguese.
• Strong operational mindset with experience managing performance across multiple workstreams
• Proven ability to drive quality, delivery, and process improvements
• Strong judgment and ability to operate in ambiguity
• Comfortable interacting with stakeholders and representing the team
• Ability to balance quality, speed, and evolving priorities
• Strong communication and organizational skills
• Deep attention to detail, with the ability to zoom out and see patterns
• Interest in AI and how human feedback shapes model behavior

Role Scope & Accountability

This leader is accountable for end-to-end operational success — including resource management, process optimization, and continuous improvement.

You’ll be expected to think beyond day-to-day execution and focus on long-term outcomes, ensuring the team consistently meets targets across quality, delivery, and overall program performance.

Benefits

• Paid Vacation: 6 days
• Paid Company Holidays: 2 days (Memorial Day and Labor Day)
• Paid Sick Leave: accrued per applicable state law and company policy
• Medical, Dental, and Vision Insurance (eligibility applies)
• Health Savings Account (HSA)
• 401(k) Retirement Plan
• Employee Assistance Program
• Additional voluntary benefits (life, accident, critical illness, etc.)
• Free Gourmet Food: Free breakfast, lunch, and dinner are provided, featuring a wide variety of cuisines in multiple cafes.
• Micro-kitchens & Snacks: Offices are stocked with free snacks and beverages, including premium coffee and La Croix.
• Unique Campus Features: Some locations include roof-top nature parks
• Commuter Benefits: Free transport, shuttles, and sometimes bike-to-work perks.

$43.50 - $43.50 an hour

Why This Role

You’ll be at the center of how AI systems are evaluated in the real world — helping define quality, guide teams, and influence how models improve over time.

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.

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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.