Antony N.

I am a CRM Data & AI Data Specialist with 8+ years of freelance experience in data operations, data cleansing and data quality, including 5+ years of AI/data annotation and evaluation, backed by more than 30 years of enterprise CRM and information-management experience with Telkom. I specialise in turning messy, inconsistent or incomplete data into clean, validated and usable information, while also applying the same quality-focused approach to AI data, annotation and evaluation. My experience includes data cleansing, reconstruction, standardisation, matching, reconciliation, validation, extraction and CRM migration preparation, together with AI data annotation, content classification, multimodal evaluation and quality assurance. ### CRM & Data Operations * CRM data cleansing, preparation and migration * Data reconstruction and record matching * Duplicate identification and removal * Data reconciliation and validation * Data standardisation and normalisation * Data integrity and quality control * Identifying missing, inconsistent and conflicting information * Preparing legacy data for CRM import * Data extraction from documents and PDFs * Structured data creation from unstructured information * Confidential PII/PHI and sensitive-data handling ### Freelance Data Experience My freelance data work began in 2018 and has included data cleansing, data extraction, data processing, Excel and Google Sheets work, document-to-data conversion, database and contact cleanup, data classification, quality checking and structured-data preparation. I have worked with datasets ranging from routine spreadsheet and database cleanup to large and complex datasets requiring careful matching, reconstruction, validation and quality control. My approach is evidence-based: where data cannot be reliably reconciled, I investigate the available information and flag the issue rather than guess. ### CRM Experience I have extensive CRM and customer-information experience, including HubSpot and more than 30 years of telecommunications CRM and information-management experience with Telkom. For a current US membership organisation with approximately 45,000 member records, I manage recurring data-processing and CRM preparation work involving legacy data and HubSpot. This includes reconstructing record relationships where reliable unique identifiers are unavailable, matching records against previous datasets and CRM records, identifying duplicates and inactive members, standardising fields, validating changes and preparing clean data for ongoing CRM use. ### Excel & Google Sheets Advanced practical experience with: * Microsoft Excel * Google Sheets * Complex formulas and data manipulation * Data cleansing and transformation * Power Query * Spreadsheet automation * Large dataset processing * Data validation and quality checks * CSV and structured-data preparation * PDF-to-Excel data conversion ### Data Quality & QA My background also includes formal quality-control experience as a retired SABS ISO9000/ISO9001 quality-control and document-control officer, giving me a strong understanding of controlled processes, accuracy, consistency, documentation and quality assurance. I apply the same principles to data and content work: follow the defined criteria, check the evidence, identify inconsistencies and document issues rather than making unsupported assumptions. ### AI/Data Annotation & Evaluation Alongside my data-operations and CRM work, I have 5+ years of hands-on experience in AI/data annotation, evaluation and quality assurance, including: * AI output evaluation and quality assurance * Data annotation and labelling * Multimodal evaluation * Computer-vision annotation * RLHF and response evaluation * Content and intent classification * Data quality review * Reviewing and QA-checking other annotators' work * Image, audio, video and text evaluation * Structured reporting and comparative evaluation My annotation and evaluation experience covers text, images, audio and video, including computer-vision annotation, transcription QA, time-based video annotation, content classification and evaluation of AI-generated responses against detailed guidelines. I have hands-on experience with tools such as CVAT and extensive experience evaluating and quality-checking both structured and unstructured data. ### What I Can Help With I am particularly well suited to projects involving: CRM data cleaning • CRM migration preparation • Data cleansing • Data reconstruction • Data matching • Data reconciliation • Data validation • Data standardisation • Duplicate removal • Database cleanup • Excel/Google Sheets • PDF-to-data conversion • Data quality assurance • Data preparation • Data entry with QA • Research and verification • Data annotation • Data labelling • AI evaluation