KEN ERROL STO TOMAS
Customer Experience & Data Specialist
Baliwag
Summary
Well-qualified AI Data Annotation & Validation Specialist with exemplary background in digital evaluation and exceptional skills in case management, workflow review, and data analysis. Excellent critical thinking, problem-solving, and multitasking abilities developed over a 7-year career across customer service, back-office administration, and AI-driven projects. Dedicated, detail-oriented, and knowledgeable leader with the necessary expertise to handle high caseloads while ensuring accuracy and efficiency.
Overview
7
7
years of professional experience
Work History
Data Validation - Part Time
Welocalize
01.2026 - Current
- The Data Validation Analyst (or Specialist/Validator) is responsible for reviewing, cleaning, and verifying data to ensure it adheres to quality standards before, during, or after entry into a system. This role prevents inaccurate data from affecting downstream reporting and business decision-making.
Remote AI Data Annotation - Part Time
RWS Group
10.2025 - Current
- This data annotation project can include tasks of pairwise comparisons, counting tasks, and object tagging tasks, which may include audio, video, and/or images as content or data collected.
Back Office Administrator
Teleperformance (Final Month of Employment)
01.2024 - Current
- Handle and carefully respond to all customer inquiries via inbound calls and email. Provide excellent customer service through active listening. Work with confidential customer information in a secure manner. Aim to resolve issues on the first call by being proactive.
Customer Service Representative
Teleperformance
10.2022 - 01.2024
- Handle and carefully respond to all customer inquiries via inbound calls and email. Provide excellent customer service through active listening. Work with confidential customer information in a secure manner. Aim to resolve issues on the first call by being proactive.
Team Leader
AccuWorks Business Process Outsourcing
08.2022 - 10.2022
- The Team Leader is generally responsible for the supervision of the Data Entry Specialist and Quality Control Specialist. He/She ensures that the goal of the whole team has been achieved efficiently and excellently.
Data Entry Specialist
AccuWorks Business Process Outsourcing
06.2022 - 08.2022
- The Data Entry Specialist is responsible for entering data from 154 documents with 100% accuracy.
Sales Agent
Topteam Dynamics
09.2021 - 06.2022
- As a sales agent, you are the front line in customer service. You are the person that they will depend on to fulfill requests and provide services that best meet their needs. To do this, you will take orders, offer services and provide support in person and via telephone or the internet. You will also be responsible for maintaining client files, ensuring that returning customers are served to the best level possible.
Research Agent
Alyce
01.2019 - 09.2021
- Responsible for discovering and compiling data in support of Alyce's proprietary technology. Accomplish this by conducting web research to compile data meant to help train our AI-driven platform, and use web research findings to verify the accuracy of what Alyce's technology surfaces.
Education
Information Technology
Baliwag Polytechnic Colleges
01-2017
High School - undefined
Open Door Christian Academy
01-2015
Skills
Internet research
Self-starter
Work independently
Time and Project Management
Sharp attention to detail
Great sense of teamwork and collaboration
Active communication
Goal oriented
High work quality
Data validation
Data entry proficiency
TOOLS
- Adobe Photoshop
- AI Tools
- Canva
- Excel
- Capcut
- Gmail
Timeline
Data Validation - Part Time
Welocalize
01.2026 - Current
Remote AI Data Annotation - Part Time
RWS Group
10.2025 - Current
Back Office Administrator
Teleperformance (Final Month of Employment)
01.2024 - Current
Customer Service Representative
Teleperformance
10.2022 - 01.2024
Team Leader
AccuWorks Business Process Outsourcing
08.2022 - 10.2022
Data Entry Specialist
AccuWorks Business Process Outsourcing
06.2022 - 08.2022
Sales Agent
Topteam Dynamics
09.2021 - 06.2022
Research Agent
Alyce
01.2019 - 09.2021
High School - undefined
Open Door Christian Academy
Information Technology
Baliwag Polytechnic Colleges