Mark Stephen J.
Customer Service Champion | AI Annotation | eCommerce | Admin Support
I have worked directly with CEOs of Australian eCommerce brands and collaborated with globally recognized companies and brands including Patagonia, The North Face, Bellroy, Peak Design, Rushfaster, Evergoods, Pakt, Matador, Aer, Adobe, Microsoft, Telus International, Appen, Beatpulse Labs, and BigData/RavenPack. I am a Customer Service Specialist with 15+ years of experience delivering chat, email, and voice support across telecommunications, eCommerce, healthcare, IT, stock market research, and AI/ML industries. I specialize in customer experience, issue resolution, account management, administrative support, and operations coordination. My background combines frontline customer support with executive assistance, project management, research, and AI data annotation, making me a versatile remote professional capable of handling both customer-facing and back-office operations. Core Skills: Customer Service & Technical Support Email, Chat & Voice Support Executive & Administrative Assistance eCommerce Customer Experience Shopify Support & Order Management Project Coordination & Operations Support AI Data Annotation & Quality Assurance Internet & Market Research Proofreading & Transcription Customer Retention & Escalation Handling CRM & Helpdesk Management Audio Subject Matter Expert Platforms & Tools: Jira Zendesk Intercom Shopify Inbox Meta Business Suite Outlook ADAP Siebel Microsoft Teams Tickets Trello Notion Stocky Professional Highlights: ✅ 15+ years of customer service and support experience across multiple industries ✅ Experienced in handling high-volume customer interactions while maintaining professionalism and accuracy ✅ Supported premium eCommerce and lifestyle brands known for high customer experience standards ✅ Former Senior Researcher and Manager for financial analytics and stock market intelligence projects ✅ Extensive experience in AI/ML projects involving voice, text, image, and video data annotation ✅ Strong written communication skills from experience as an English teacher, poet, and editorial contributor ✅ Detail-oriented, reliable, and committed to delivering accurate, fact-based results In addition to my professional experience, I am also a PC builder and gaming enthusiast with hands-on technical knowledge of hardware, troubleshooting, and system optimization. I am currently seeking long-term remote opportunities in: Customer Support Executive Assistance eCommerce Operations Virtual Assistance Technical Support Project Coordination AI/Data Annotation Research & Administrative Support Audio Subject Matter Expert AI Fact-Checking AI Bias Mitigation AI Classifier AI Compliance AI Text-to-Image AI Text-to-Speech AI Content Detection AI Model Training AI Platform AI Product Management
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $4.5k
Billed in all: $65,945$66k
$1.5k in the last 6 months
Across 16 contracts
Earnings, last 30 days
Skill rankings: Top 11% in Gaming
Ranked by MRR among everyone on Upwork with the skill.
- #4AI Bias Mitigation19 freelancers · 🇵🇭 #1Top 21%🇵🇭#1 of 2
- #10AI Classifier62 freelancers · 🇵🇭 #1Top 16%🇵🇭#1 of 4
- #18AI Content Detection129 freelancers · 🇵🇭 #3Top 14%🇵🇭#3 of 4
- #32Gaming301 freelancers · 🇵🇭 #10Top 11%🇵🇭#10 of 56
- #42AI Compliance183 freelancers · 🇵🇭 #4Top 23%🇵🇭#4 of 6
- #50AI Fact-Checking330 freelancers · 🇵🇭 #6Top 15%🇵🇭#6 of 21
- #91AI Text-to-Speech529 freelancers · 🇵🇭 #4Top 17%🇵🇭#4 of 20
- #103AI Product Management540 freelancers · 🇵🇭 #5Top 19%🇵🇭#5 of 14