I'm looking for opportunities to build LLM-powered tools and modern web applications - combining RAG/LangChain work, full-stack development with MERN and TypeScript, and DevOps with Docker. Open to full-time, freelance, or contract work, and comfortable working independently or as part of a team.
Looking for a job
Albert Fuchs
@albertfuchs
I build multilingual RAG chatbots and full-stack web apps.
SpainWhat I'm looking for
I'm an independent developer in Barcelona, focused on full-stack delivery and practical AI applications. Since August 2025, I've been building doc-ai-bot, a multi-language RAG chatbot using LangChain for offline technical documentation, including a custom benchmarking suite to evaluate LLM configuration performance against accuracy and response quality.
I bring 5 years of professional development experience with the MERN stack, TypeScript, and Docker, plus SysAdmin skills including Linux administration, Ansible, and Prometheus. My background includes Lautsprecher, a music web magazine I built and ran solo end-to-end - concept, design, development, and deployment - and freelance web development for businesses across Germany, covering everything from CMS builds to custom full-stack apps.
From 2021 to 2025, I also worked as a Web Developer & Trainer at Digital Career Institute GmbH, where I trained developers in full-stack web development while staying hands-on with real client projects.
Experience
Work history, roles, and key accomplishments
ID
Current
Independent Developer
Independent Developer
Aug 2025 - Present (10 months)
Built a multi-language doc-ai-bot RAG chatbot for offline technical documentation using LangChain, with a custom benchmarking suite to evaluate LLM configurations.
DG
Web Developer & Trainer
Digital Career Institute GmbH
Jul 2021 - Jul 2025 (4 years)
Trained approximately 300 students in full-stack web development (MERN stack), supervising final projects and coordinating teams. Developed training materials and delivered technical demos while contributing to external client projects.
FR
Freelance Web Projects
Freelance
Jan 2022 - Jan 2025 (3 years)
Developed web solutions for multiple organizations while applying DevOps/SysAdmin capabilities. Managed Linux-based infrastructure and automation using Ansible, Docker, and Prometheus monitoring.
DG
Frontend Developer Intern
Dreamsoft GmbH
Jun 2021 - Jul 2021 (1 month)
Contributed to frontend development using Vue.js and Bootstrap and collaborated using GitLab. Delivered UI updates as part of the team’s web development work.
Education
Degrees, certifications, and relevant coursework
DG
Digital Career Institute GmbH
MERN Stack Web Development Certificate, MERN Stack Web Development
2020 - 2021
Activities and societies: 1st Place Award, Hackathon (Berlin, October 2020).
Completed a MERN Stack web development certificate program covering full-stack development with MongoDB, Express.js, React, and Node.js.
ESMUC
Conducting Diploma, Conducting
2009 - 2013
Grade: Diplom
Completed a conducting diploma at ESMUC.
Tech stack
Software and tools used professionally
Availability
Looking for a job
Location
SpainAuthorized to work in
Salary expectations
43k-50k USD
Social media
Job categories
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