Ignacio (Nacho) Merino Arnaiz-Co-Founder
Check rate
Experience
Software Engineer
Konvo GmbH
- Development and maintenance of backend services for channel integrations, including email, WhatsApp, and helpdesk connections
- Further development of the broadcast and list creation system
- Bug fixing and optimization of existing features in conversation and inbox management
- Maintenance of database infrastructure and development environment
Co-Founder
cileria GmbH
Co-founded and manage a Berlin-based AI-driven software agency delivering scalable web and automation solutions. Lead teams in designing, developing, and deploying full- stack SaaS applications for clients across Europe and Latin America. Architect cloud-native platforms using Docker, GitHub Actions, and Azure, ensuring security and GDPR compliance. Drive innovation by integrating AI agents, LLMs, and automation into enterprise workflows.
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
Developed new e-commerce platform features in React, Next.js, and Node.js. -Optimized backend services and API integrations to SUMMARY Ignacio (“Nacho”) Merino 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 Powered by
-Optimized backend services and API integrations to support increased traffic and sales conversions. Led performance improvements resulting in faster page load times and better SEO rankings. Worked in agile cross-functional teams with designers and product managers to deliver iterative value.
Full-stack Junior Developer
IVY OAK GmbH
Implemented frontend features and bug fixes in React and Redux to improve user experience. Contributed to backend systems in Node.js and PostgreSQL for order management and customer accounts. Worked on integrating third-party services including payment providers and marketing tools. Collaborated with design team to enhance overall UI/UX consistency.
Full-stack Intern Developer
IVY OAK GmbH
Assisted senior developers in building and maintaining full- stack web features. Gained hands-on experience in React, Node.js, SQL, and MongoDB within a production environment. Contributed to debugging and testing workflows, ensuring code quality.
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
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Food and Beverage, Advertising, Manufacturing, Education, and Retail.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Project Management, Customer Service, Marketing, and Sales.
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 8+ 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 (Administration of Computer Network Systems) · Informatics, Communications, and Support Services · Uccle, Belgium
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Ignacio is based in Berlin, Germany and can operate in on-site, hybrid, and remote work models.
Ignacio speaks the following languages: Spanish (Native), English (Advanced), German (Elementary).
Ignacio has at least 16 years of experience. During this time, Ignacio has worked in at least 14 different roles and for 10 different companies. The average length of individual experience is 1 year and 2 months. Note that Ignacio may not have shared all experience and actually has more experience.
Based on recent experience, Ignacio would be well-suited for roles such as: Software Engineer, Co-Founder, React Architect Co-Founder.
Ignacio's most recent position is Software Engineer at Konvo GmbH.
In recent years, Ignacio has worked for Konvo GmbH, cileria GmbH, and IVY OAK GmbH.
Ignacio is most experienced in industries like Information Technology, Food and Beverage, and Advertising. Ignacio also has some experience in Manufacturing, Education, and Retail.
Ignacio is most experienced in business areas like Information Technology, Product Development, and Project Management. Ignacio also has some experience in Marketing, Customer Service, and Sales.
Ignacio has recently worked in industries like Information Technology.
Ignacio has recently worked in business areas like Information Technology, Product Development, and Project Management.
Ignacio holds a Bachelor in Information Technology from FH Schmalkalden.
The availability of Ignacio needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 26 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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