Who Am I?#
Hi! I’m Jeroen Tuijn, based in the Netherlands. My sweet spot? Sales and presales — standing between the technical team and the customer, making sure both sides understand each other and walk away happy.
I’m the person who can explain a complex product in a way that makes sense to a CEO and a CTO. I build the demos, write the proposals, and craft the technical narrative that wins the deal.
What I Bring to the Table#
🎯 Sales & Presales (My Core)#
This is where I shine:
- Technical Presentations & Demos: I don’t just show features — I tell the story of how your product solves the customer’s problem.
- Proofs of Concept: Building quick, convincing demos that prove the technology works in the customer’s context.
- Proposal Writing: Translating technical specs into business value. RFPs, tenders, quotes — I make them compelling.
- Solution Mapping: Listening to what the customer actually needs (not just what they say) and matching it to the right technology.
- Stakeholder Management: Comfortable talking to engineers, procurement, and C-level in the same week.
- Competitive Intelligence: Knowing the landscape — who does what, where we win, and where we differentiate.
⚡ Vibe Coding (My Accelerator)#
When I need to prototype something fast, I don’t start from scratch — I vibe code. Using AI-assisted tools, I go from rough idea to working prototype in hours. It’s not about replacing developers — it’s about having something tangible to show during the sales cycle before the engineering team is even briefed.
- Rapid Prototyping: Idea → working demo in a single session
- AI-Assisted Development: Leveraging LLMs and tools to move fast without sacrificing quality
- PoC Generation: Turning customer requirements into a clickable prototype for the next meeting
- Static Sites & Portfolios: This site itself is a vibe-coded Hugo portfolio
🛠️ Technical Foundation#
Under the hood, I’ve got enough technical depth to be credible:
- Languages: Python, JavaScript/TypeScript, SQL, Go (learning), Rust (exploring)
- Web: Hugo (static sites), React, FastAPI, Node.js
- DevOps: Docker, CI/CD, Git, Linux, GitHub Actions
- Databases: PostgreSQL, SQLite
What Drives Me#
🎯 Winning the Deal: There’s nothing like seeing a proposal you wrote land the account.
🚀 Speed Matters: In sales, timing is everything. A good demo today beats a perfect one next month.
💡 Bridge Builder: I love being the person who connects tech and business — neither side feels misunderstood.
🤝 Customer First: Every solution starts with understanding the problem from their perspective.
Outside of Work#
When I’m not prepping a demo or building a prototype:
- Experimenting with AI tools and finding new ways to work faster
- Tinkering with side projects (half of them never ship, but they’re fun to build)
- Staying current on the tech landscape — you never know what’ll be relevant for the next deal
- [Add your hobbies/interests here]
Let’s Connect#
Always open to new opportunities, partnerships, and conversations about technology, sales, or whatever’s on your mind.
- 📧 Email: jeroen.tuijn@gmail.com
- 💼 LinkedIn: Connect with me
- 🐙 GitHub: Check out my repos
- ⛰️ Codeberg: View my projects
📄 Resume: Download CV