One engineer.
One project at a time.
CTO Monster is a one-engineer software studio in Orlando, Florida, working with businesses across the United States. We build websites, web and mobile apps, SaaS products and AI agents, and we make them visible in Google and in AI search. Founded and run by Dan Marteens, 11 years of senior engineering.
- Founded by
- Dan Marteens
- Based in
- Orlando, Florida, USA
- Serves
- Businesses across the United States
- Experience
- 11 years senior engineering
- Team size
- One engineer, one project at a time
- Legal entity
- Dan Marteens (DBA)
- Contact
- [email protected]
Why one person beats an agency.
No telephone game
You talk to the person writing the code. Nothing gets lost between a salesperson, a project manager and a developer who never spoke to you.
No junior swap
Agencies win work with seniors and staff it with juniors. Here the person you met is the person building it, because there is nobody else.
Fixed and published prices
The rates are on this site. You get one number in writing before anything starts, and you own the code and accounts from day one.
Track record.
CoinMarketCap Agent Hub Award
BNB Hack: AI Trading Agent Edition, run by BNB Chain, CoinMarketCap and Trust Wallet. Autonomous trading agent under hard risk rules.
Qwen hackathon, two tracks
An AI showrunner and an AI selling autopilot, built on Alibaba Cloud.
Five products shipped
LunchBoxed, BublTalk, Webie, Coral Glove and Onlist: operations platforms, native apps and an accessibility tool used by families every day.
Google Dev Fest, Startup Weekend, AWS GameDay
First place at each.
What we do.
Common questions.
What is CTO Monster?
CTO Monster is a one-engineer software studio based in Orlando, Florida, working with businesses across the United States. It builds websites, web and mobile apps, SaaS products and AI agents, and makes them visible in Google and in AI search. It was founded and is run by Dan Marteens.
Who is Dan Marteens?
Dan Marteens is a senior software engineer with 11 years of experience, based in Orlando, Florida. He is the founder and sole engineer of CTO Monster, and has won Google Dev Fest, Startup Weekend, AWS GameDay, and the CoinMarketCap Agent Hub Award at BNB Hack 2026.
How is CTO Monster different from an agency?
One engineer does the work end to end: no account managers, no handoff to a junior team, one project at a time. Prices are fixed and published, and clients own the code and the accounts from the first day.