This case study explores our collaboration with a global technology leader to rapidly build and train a team of Senior Expert Raters (SERs) in six languages, ensuring the delivery of high-quality ad content across multiple markets. By leveraging local linguistic and cultural expertise, we enabled the client to maintain content accuracy and relevance, supporting their digital advertising initiatives on a global scale. 

Explore how we partnered with a global technology leader to build and train a team of expert raters in just two weeks, ensuring the accuracy and quality of digital content across multiple languages and markets. 

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The Client 

As a global leader in technology and digital services, this client is known for delivering personalized experiences to its massive user base worldwide. With billions of users, they focus on ensuring the accuracy, relevance, and quality of content across numerous languages and regions. 

Maintaining cultural and linguistic precision is crucial for this client’s continued success and leadership in the highly competitive tech landscape. Their commitment to localizing content, especially in digital advertising, helps them resonate with diverse audiences worldwide, reinforcing their standing as a leader in the industry and ensuring that users receive the best possible experience, no matter where they are in the world. 

The Challenge 

The client needed rapid, high-quality support for its digital advertising services and partnered with the Welo Data team to meet this demand. The objective was to recruit and train at least one SER for each of the following languages: Dutch, French, Spanish, Portuguese, German, and Italian— within just two weeks. These experts would undergo a thorough training process to ensure they met the client’s exacting standards, specifically reaching a minimum accuracy rate of 85%. 

Given the fast-paced nature of digital advertising and the need for high-level localization expertise, the client required SERs to rapidly assess and qualify ad quality while maintaining exceptional cultural and linguistic fluency. The challenge was clear: recruit, onboard, and train qualified candidates to hit the ground running within a narrow window of time. 

The Solution 

To meet the client’s needs, Welo Data designed a rigorous two-week ramp program with two distinct phases: 

Phase 1: Recruitment and Team Building (Week 1) 

The first week was dedicated to identifying and filtering suitable candidates from a pool of thousands.  

Candidate Sourcing and Filtering

Rigorous Interview Process

Final Selection

Expert Rater Profile

Phase 2: Training and Qualification (Week 2) 

Once the team was built, the second week was dedicated to ensuring the selected candidates were properly trained and ready for production.  

Day 1 Initial Training

Day 2-4 Live Training and Calibration

Day 5-6 Mock Testing and Final Calibration

The rapid pace of the project posed several challenges: 

1. Accelerated Recruitment Timeline: Completing over 22 hours of interviews in a single week required significant resource allocation and coordination. However, our structured process ensured that the right candidates were selected efficiently. 

2. Time Zone Coordination: With teams across three time zones, scheduling live training sessions required flexibility from trainers and participants. We ensured consistent communication and structured Q&A sessions to address any knowledge gaps. 

3. Scope Adjustments: The project’s scope evolved multiple times during execution, demanding quick adjustments. Our team worked closely with the client to maintain alignment and ensure the program met all evolving requirements. 

Results 

Despite the compressed timeline, the program was a success. By the end of the two-week period, we had successfully trained at least one Senior Expert Rater in each target language, ready to begin production work immediately. The program’s key achievements included: 

• Team Size:  Expert raters were fully onboarded and trained, with an average of 4.5 raters per language locale. 

• Performance and Quality: Despite the aggressive two-week timeline, Welo Data effectively recruited and trained a team of expert raters who met the client’s standards. The structured training and quality assurance processes ensured that the team maintained performance beyond the training period, with top candidates exceeding expectations. This rapid, efficient approach allowed the client to uphold content quality across all target languages. 

Conclusion 

Through a highly structured approach and close collaboration with the client, Welo Data successfully met an ambitious deadline, delivering a team of fully trained senior expert raters within just two weeks.  

This swift deployment of expert talent allowed the client to maintain their content quality standards, safeguarding their brand presence across multiple regions while enhancing the overall user experience for their diverse audience.