Ignacio (Nacho) Merino arnaiz

Co-Founder

Avatar placeholder
Berlin, Germany

Experience

Apr 2024 - Present
1 year 10 months
Berlin, Germany

Co-Founder

cileria GmbH

Jun 2023 - Present
2 years 8 months

React Architect Co-Founder

cileria GmbH

  • Lead the design and development of React / Next.js / Astro frontends
  • Develop Node.js (TypeScript), .NET, and Python APIs
  • Build custom AI agents and LLM workflows using OpenAI, Ollama, and LangChain
  • Perform prompt engineering and design agentic architectures
  • Create web crawlers, chatbots, and task automation systems
  • Implement GDPR-compliant deployments with Docker, GitHub Actions, and Azure
  • Manage all project management activities at Cileria
  • Conduct prompt engineering for precision and reliability
  • Build agentic systems following LangChain and MCP standards
  • Integrate LM Studio in server mode for local inference
  • Automate multi-system orchestration using n8n
Jan 2021 - Mar 2023
2 years 3 months
Berlin, Germany

Full-stack Mid-level Developer

IVY OAK GmbH

Sep 2018 - Jan 2021
2 years 5 months
Berlin, Germany

Full-stack Junior Developer

IVY OAK GmbH

Jul 2018 - Sep 2018
3 months
Berlin, Germany

Full-stack Intern Developer

IVY OAK GmbH

Jan 2018 - Jun 2018
6 months
Berlin, Germany

Teacher Assistant

DCI Digital Career Institute gGmbH

  • Tutored DCI students and Devugees participants in full-stack web development
  • Covered JavaScript, JQuery, Node.js, React, MySQL, and MongoDB
Jun 2015 - May 2016
1 year
Berlin, Germany

QA Engineer

Kisura GmbH

  • Tested front-end and back-end of the company’s web pages
  • Conducted manual testing to identify and resolve bugs
Apr 2014 - May 2015
1 year 2 months
Berlin, Germany

Software Quality Assurance Analyst

SOFHA GmbH

  • Understood and tested Atlantic Zeiser printers
  • Tested printer drivers across all operating systems
  • Created test forms
Mar 2012 - Jun 2012
4 months
Schmalkalden, Germany

Helping Exchange Students

Fachhochschule Schmalkalden

  • Guided exchange students through initial steps at the university
  • Advised on web pages, software, and virtual didactic tools
  • Repaired small hardware issues on laptops
  • Linked students with the international office
Feb 2011 - Mar 2012
1 year 2 months
Santander, Spain

Waiter

Britannia Restaurant

  • Handled customer interactions and deals
  • Managed table and customer organization
  • Operated computer and cash desk systems
  • Developed a new system for organizing food orders
Aug 2010 - Feb 2011
7 months
Santander, Spain

Seller

Decathlon Internacional

  • Specialized in selling and repairing bicycles
  • Coordinated the bicycle section
  • Managed supplier relationships
  • Recommended best options for customers
Jan 2009 - Dec 2011
3 years

Babysitter

Autoemploy

  • Entertained and created fun activities for children
  • Took responsibility for children’s safety and well-being
  • Performed marketing and promotion of alcoholic drinks and video games
Jan 2007 - Dec 2009
3 years

Steward

Autoemploy

  • Promoted products and provided information to customers
  • Distributed promotional materials

Summary

Co-Founder of Cileria GmbH, a Berlin-based agency building AI-powered, full-stack digital products for companies across Europe and Latin America.

With 7+ years of experience, I specialize in TypeScript-driven full-stack development, AI automation systems, and scalable web applications—taking ideas from concept to production. My daily work spans technical architecture, backend/frontend development, cloud deployment, and integrating cutting-edge AI into real-world workflows.

At Cileria, I lead the design and development of:

  • React / Next.js / Astro frontends
  • Node.js (TypeScript) / .NET / Python APIs
  • Custom AI agents and LLM workflows (OpenAI, Ollama, LangChain)
  • Prompt engineering and agentic architectures
  • Web crawlers, chatbots, and task automation
  • GDPR-compliant deployments with Docker, GitHub Actions & Azure

At Cileria I also do all the project management.

My AI expertise includes:

  • Prompt engineering for precision and reliability
  • Building agentic systems with LangChain and MCP standards
  • Integrating LM Studio in server mode for local inference
  • Automation with n8n for multi-system orchestration

I’m the founder of ReactArchitect.ai.

Our tool helps developers visualize and document React and Next.js projects in minutes. It generates component diagrams, documentation, and summaries automatically with AI. From props flow to node packages, every detail of your app is mapped and explained. Clean, modular, and scalable projects—built with the clarity of real architecture.

My goal is always to deliver systems that perform, scale, and truly improve workflows, blending robust engineering with thoughtful UX. Starting my career as a QA engineer and tech support specialist, I bring a user-centric and practical mindset to every product I build.

Skills

  • Artificial Intelligence (Ai)
  • Project Planning
  • Product Development

Languages

Spanish
Native
English
Advanced
German
Elementary

Education

Oct 2017 - Jun 2018

Digital Career Institute

FullStack JS Web Developer · Information Technology · Berlin, Germany

Oct 2012 - Jun 2014

FH Schmalkalden

Business Informatics (B.Sc.) · Information Technology · Schmalkalden, Germany

Oct 2010 - Jun 2012

Decroly

Computer System Network Administration (Computer Network Systems Administration) · Computer Science, Communications and Support Services · Uccle, Belgium

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