Data Annotator Specialist
VISTRA
full-time
Posted on:
Location Type: Office
Location: Malaysia
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Tech Stack
About the role
- Lead data annotation initiatives for document processing, ensuring high-quality labeled datasets for machine learning model training and evaluation
- Develop and maintain comprehensive annotation guidelines and training materials for complex document structures
- Perform quality assurance on annotated data, identifying inconsistencies and implementing corrective measures
- Collaborate with AI/ML engineers to understand model performance issues and refine annotation strategies
- Manage annotation workflows and optimize processes for efficiency and accuracy
- Train and mentor junior annotators on best practices and quality standards
- Create and maintain documentation for annotation processes and quality metrics
- Participate in cross-functional meetings to align annotation efforts with project goals
- Continuously research and evaluate emerging annotation tools and techniques to enhance productivity and quality
Requirements
- 3+ years of data annotation/labelling experience, preferably in document AI or OCR projects
- Proven track record of leading annotation teams or quality assurance initiatives
- Deep understanding of table structures, document layouts, and data extraction challenges
- Experience with financial documents, invoices, compliance reports, or corporate filings
- Demonstrated ability to identify patterns in ML model failures and recommend improvements
- Advanced proficiency with Excel, CSV, JSON, and structured data formats
- Strong understanding of OCR technologies, confidence scores, and bounding box coordinates
- Experience with annotation tools, quality metrics, and inter-annotator agreement calculations
- Ability to write basic scripts (Python preferred) for data validation and analysis
Benefits
- flexible hybrid working arrangement
- birthday leave
- comprehensive medical insurance and dental coverage
- wellness allowance
- competitive annual leave entitlement
- internal mentorship program
- reimbursement of professional membership fees for certifications like CA or ACCA
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
data annotationquality assurancedata validationPythonExcelCSVJSONOCR technologiesannotation toolsinter-annotator agreement
Soft Skills
leadershipmentoringcollaborationcommunicationproblem-solvingattention to detailorganizational skillsresearch skillsprocess optimizationtraining