For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

LoginCreate account
Invite to Job
Jimmy Doorenweerd

Jimmy Doorenweerd

Strategic GTM / B2B SaaS SME

Spain flagMonda, Spain
$250.00/hrIntermediateInternal Proprietary ToolingOther

Key Skills

Software

Internal/Proprietary Tooling
Other

Top Subject Matter

No subject matter listed

Top Data Types

DocumentDocument
TextText

Top Task Types

Action Recognition
Classification
Evaluation Rating
Prompt Response Writing SFT
Question Answering
Text Generation
Text Summarization
Transcription
Translation Localization

Freelancer Overview

I bring extensive experience leveraging AI and automation to optimize workflows and data processes, with a strong focus on integrating custom GPTs and LLMs for account research, prompt engineering, and automated workflow design. My background includes configuring AI tools for content generation and call analysis transcripts, reducing manual overhead by up to 70%. I am fluent in multiple languages (English, Spanish, Dutch, French, German) and have a proven track record of building remote-ready tech stacks that ensure data accuracy and transparency. My hands-on experience with platforms like HubSpot, Zendesk, Google Workspace, Jira, Loom, and Notion has enabled me to support high-quality data annotation and labeling initiatives, particularly in SaaS, real estate, and B2B domains. I am passionate about using AI to streamline data operations and deliver reliable, scalable training data for advanced machine learning applications.

IntermediateDutchFrenchGermanEnglishSpanish

Labeling Experience

Trilingual B2B Revenue Architecture & Reasoning Calibration

Internal Proprietary ToolingTextPrompt Response Writing SFT
Engineered and validated high-fidelity reasoning chains for B2B SaaS GTM models. - Focused on "Sales Engine" math, calibrating AI responses to handle complex multi-step objections in high-velocity outbound environments (150-200 touchpoints/week methodology). - Optimized model performance for $60M ARR scale trajectories by providing expert-level "Ground Truth" for revenue-generating logic.

Engineered and validated high-fidelity reasoning chains for B2B SaaS GTM models. - Focused on "Sales Engine" math, calibrating AI responses to handle complex multi-step objections in high-velocity outbound environments (150-200 touchpoints/week methodology). - Optimized model performance for $60M ARR scale trajectories by providing expert-level "Ground Truth" for revenue-generating logic.

2024 - 2025

Multi-Market (EN/ES/NL) Semantic Alignment & RLHF

OtherTextRLHF
Provided Reinforcement Learning from Human Feedback (RLHF) to align LLM outputs with cultural and professional nuances in the Iberia and Benelux markets. - Ranked and rated model responses for linguistic accuracy and strategic intent in international market expansion scenarios. - Focused on bridge-logic between Dutch corporate structures and Spanish market entry tactics for VC-backed portfolio firms.

Provided Reinforcement Learning from Human Feedback (RLHF) to align LLM outputs with cultural and professional nuances in the Iberia and Benelux markets. - Ranked and rated model responses for linguistic accuracy and strategic intent in international market expansion scenarios. - Focused on bridge-logic between Dutch corporate structures and Spanish market entry tactics for VC-backed portfolio firms.

2025

Cross-Border PropTech Transactional Logic & Entity Structuring

Internal Proprietary ToolingDocumentEntity Ner Classification
Subject Matter Expert (SME) for structuring and labeling unstructured brokerage datasets within a €6.1M TCV portfolio. - Classified and verified complex legal and financial entities in real estate contracts across Spanish, Dutch, and English jurisdictions. - Ensured data integrity for remote-first brokerage tech stacks, aligning technical metadata with high-stakes transactional outcomes.

Subject Matter Expert (SME) for structuring and labeling unstructured brokerage datasets within a €6.1M TCV portfolio. - Classified and verified complex legal and financial entities in real estate contracts across Spanish, Dutch, and English jurisdictions. - Ensured data integrity for remote-first brokerage tech stacks, aligning technical metadata with high-stakes transactional outcomes.

2025

Education

T

TASIS

International Baccalaureate, General Studies

International Baccalaureate
2000 - 2000

Work History

C

Coastal Living Marbella

Founder & Business Development Lead

Marbella
2025 - Present
H

Hostaway

Senior Account Executive

Barcelona Area
2017 - 2025