Full-stack developer & data engineer. I build custom software, AI tools, and operational systems — things that don't exist off the shelf.
hello@lindnerherrero.com →Most businesses know AI could help them. They just don't know where to start — or they've tried and hit a wall at the implementation stage.
Reporting, data gathering, sorting emails, status updates — tasks nobody wants to do, but everyone does. Every day. Hour after hour.
~10-20h/week wastedNotion, Monday, Hubspot, Calendly, Zapier — you pay for 14 tools, use 10% of each, and your data is scattered across 14 platforms.
~€8,000+/year on toolsYour team copies text into ChatGPT and back out. That's not a workflow — it's a workaround. The real levers remain untouched.
Competitive advantage missedStrategic work stalls because you're too deep in operations. You could grow — if you weren't stuck in processes that are beneath you.
Growth stalledI build AI tools that take over a specific job in your business. Deployed, tested, with training for your team. You stay in control — the AI does the work.
Identify repetitive processes and replace them with custom AI tools. Not generic — tailored exactly to your workflows.
When no SaaS tool does what you need, I build it. Fast, cheaply hosted, and it's yours — no vendor lock-in.
Your data lives somewhere — in Excel, in tools, in people's heads. I build pipelines and dashboards so you can finally see what's happening.
No months of consulting. No 50-page concept deck. Instead: find the biggest lever fast and ship it.
60 minutes, free. I listen, ask questions, and together we find where the biggest lever is. No pitch — real sparring.
One concrete tool, one core function, deployed and usable. You see immediately whether the approach works — before making a large investment.
What works gets extended. New use cases, more automation, team training. Monthly retainer or project-based — whatever works for you.
A luxury boat tour company in Berlin: 6 boats, 2 docks, growing demand — but everything ran on Excel, phone calls, and paper. I built the complete digital backbone: a booking portal for hotel partners, fleet scheduling with collision detection, automatic invoicing, BI dashboards, and a multilingual audio guide system.
I'm a data engineer and full-stack developer — with an unusual background: a degree in Data Science & AI and one in International Business. That means I don't just know how to build systems, I understand why.
My strength is building technical solutions that non-technical teams actually use. No over-engineering, no feature graveyards. Instead: the minimum that creates maximum leverage.
I work remotely, location-independent, and speak German, Spanish, and English at native level. Whether Berlin, Barcelona, or Buenos Aires — I'm reachable.
We look at your processes together and find out where AI or a custom tool would have the biggest impact. Concrete, honest, and no obligation.
Or write directly: hello@lindnerherrero.com