Ignacio (Nacho) Merino Arnaiz
Co-Founder
Experience
Co-Founder
cileria GmbH
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
Full-stack Mid-level Developer
IVY OAK GmbH
Full-stack Junior Developer
IVY OAK GmbH
Full-stack Intern Developer
IVY OAK GmbH
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
QA Engineer
Kisura GmbH
- Tested front-end and back-end of the company’s web pages
- Conducted manual testing to identify and resolve bugs
Software Quality Assurance Analyst
SOFHA GmbH
- Understood and tested Atlantic Zeiser printers
- Tested printer drivers across all operating systems
- Created test forms
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
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
Seller
Decathlon Internacional
- Specialized in selling and repairing bicycles
- Coordinated the bicycle section
- Managed supplier relationships
- Recommended best options for customers
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
Steward
Autoemploy
- Promoted products and provided information to customers
- Distributed promotional materials
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Information Technology (11 years), Food and Beverage (3 years), Advertising (3 years), Manufacturing (1 year), Education (0.5 years), and Retail (0.5 years).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (8 years), Product Development (5 years), Customer Service (5 years), Marketing (5 years), Sales (3.5 years), and Project Management (2.5 years).
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
Education
Digital Career Institute
FullStack JS Web Developer · Information Technology · Berlin, Germany
FH Schmalkalden
Business Informatics (B.Sc.) · Information Technology · Schmalkalden, Germany
Decroly
Computer System Network Administration (Computer Network Systems Administration) · Computer Science, Communications and Support Services · Uccle, Belgium
Profile
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