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Chris Roos

Chris Roos

Director of Sales and Marketing

South Africa flagCape Town, South Africa
$25.00/hrIntermediateAxiom AIAws SagemakerAppen

Key Skills

Software

Axiom AI
AWS SageMakerAWS SageMaker
AppenAppen
ArgillaArgilla
CrowdSourceCrowdSource
HiveMindHiveMind
TolokaToloka

Top Subject Matter

Information Technology
E-Commerce
Marketing

Top Data Types

ImageImage
VideoVideo
TextText

Top Task Types

Question Answering
Text Summarization
Transcription
Evaluation Rating
Fine Tuning
Object Detection
Text Generation
Classification

Freelancer Overview

Director of Sales and Marketing. Brings 10+ years of professional experience across complex professional workflows, research, and quality-focused execution. Education includes Certificate in Artificial Intelligence Fundamentals, Anthropic (2026) and Certificate in Artificial Intelligence Literacy, IBM SkillsBuild (2026).

IntermediateEnglish

Labeling Experience

AI Customer Support Intent Classification

TextClassification
Labelled customer support tickets by intent (billing, technical issue, onboarding, cancellation) to improve chatbot routing accuracy and reduce response times. Focused on edge cases where intent overlaps.

Labelled customer support tickets by intent (billing, technical issue, onboarding, cancellation) to improve chatbot routing accuracy and reduce response times. Focused on edge cases where intent overlaps.

2025 - Present

Salesforce Agentforce Conversational AI Training

TextPrompt Response Writing SFT
Designed and refined prompt-response pairs to train Salesforce Agentforce agents across customer support and sales scenarios. Emphasis on accuracy, tone consistency, and handling real-world business interactions.

Designed and refined prompt-response pairs to train Salesforce Agentforce agents across customer support and sales scenarios. Emphasis on accuracy, tone consistency, and handling real-world business interactions.

2025 - Present

AI Chatbot Response Ranking (RLHF)

TextRLHF
Ranked multiple chatbot responses based on helpfulness, accuracy, and tone to improve conversational AI performance through reinforcement learning. Focused on real-world conversational scenarios.

Ranked multiple chatbot responses based on helpfulness, accuracy, and tone to improve conversational AI performance through reinforcement learning. Focused on real-world conversational scenarios.

2025 - Present

AI Sales Call Transcription & Tagging

AudioTranscription
Transcribed and labelled sales calls, tagging key moments such as objections, closing attempts, and buying signals to support sales coaching AI tools. High accuracy required for tone and intent.

Transcribed and labelled sales calls, tagging key moments such as objections, closing attempts, and buying signals to support sales coaching AI tools. High accuracy required for tone and intent.

2025 - Present

Salesforce Einstein Lead Scoring Optimization Dataset

TextClassification
Labelled and structured lead data based on conversion likelihood, engagement signals, and behavioral patterns to enhance AI-driven lead scoring within Salesforce Einstein. Focused on improving lead prioritization and supporting sales teams in identifying high-value opportunities.

Labelled and structured lead data based on conversion likelihood, engagement signals, and behavioral patterns to enhance AI-driven lead scoring within Salesforce Einstein. Focused on improving lead prioritization and supporting sales teams in identifying high-value opportunities.

2025 - 2026

Education

B

BAFAI

Certificate in Artificial Intelligence Fundamentals, Artificial Intelligence Fundamentals

Certificate in Artificial Intelligence Fundamentals
2026 - 2026
T

Techademy

Certificate in Artificial Intelligence for Project Management, Artificial Intelligence for Project Management

Certificate in Artificial Intelligence for Project Management
2026 - 2026

Work History

K

Kemisoft

Director of Sales and Marketing

Cape Town
2023 - 2026
S

SSC Digital

Head of Customer Success

Cape Town
2021 - 2023