Backend & AI engineer · Barcelona
Florian Abel
Building agentic systems in production.
8+ years backend & AI engineering · ex-VP Engineering
- Agentic systems Building agentic runtimes that run in production, not just demos.AtmioTalentQueenAI
- Backend & architecture Python, FastAPI, Django, PostgreSQL. Layered architecture, clean domains, systems that scale.BooklineCo-LeaderWriting
- Conversational AI Built and rearchitected production conversational-AI bot frameworks.Bookline
- Building products 0 → 1 across frontend, backend and infra. Co-founded a company; building two products now.Co-founder & CTOTalentQueenAICityPirate
- Engineering leadership Scaled and led engineering teams; set the bar for quality, ownership and speed.Bookline (VP)Co-Leaderstudentec
Python · FastAPI · Django/DRF · Pydantic · PostgreSQL · Redis · Docker · Kubernetes · AWS · GCP
Work experience
Atmio Principal Backend Engineer 2026 – present
Building an agentic runtime inside a production Django stack, alongside core backend work. Atmio helps energy providers with compliance and workflows.
Agentic systemsBackend & architectureBookline Senior Engineer → Lead Engineer → VP of Engineering 2023 – 2026
Joined as Senior/Architect, promoted to Lead (Software Architecture & AI), then VP of Engineering. Redesigned the conversational-AI bot framework and FastAPI backend into clean, layered architecture, migrated NoSQL → SQL, consolidated repos into a monorepo (5x faster deploys), and scaled the department from 8 to 13 engineers with hiring, review and testing standards.
Conversational AIBackend & architectureEngineering leadershipSabbatical & freelance Independent 2022 – 2023
A year across South America — reaching fluency in Spanish and Portuguese — while freelancing: requirements engineering for a TIER Mobility supply-chain project, a custom ERP for apic.ai, and a Flutter mobile app.
Building productsWritingCO-LEADER GmbH Co-Founder & CTO 2020 – 2022
Co-founded a leadership-development e-learning startup and grew it 0 → 10 with pre-seed funding. Built the whole product — Nuxt.js frontend, Django/DRF backend with a learning-path matching algorithm — and the cloud infra (EC2, RDS, Docker Compose). Managed 5 across product, content and diagnostics.
Building productsBackend & architectureEngineering leadershipapic.ai Python Engineer 2019 – 2020
Built a Python control suite for microservices on an embedded system; introduced clean-code standards and unit testing.
Backend & architectureEducation & background
M.Sc. Mechanical Engineering KIT · 2018
Karlsruhe Institute of Technology. The mechanical-engineering and robotics background is where the first-principles habit comes from — before the move into software.
Backend & architectureB.Sc. Vehicle & Engine Engineering Stuttgart · 2014
University of Stuttgart, with a bachelor thesis at Hanyang University (Seoul) and a study-abroad term at the National University of Singapore.
studentec e.V. — Chairman & project leader 2014 – 2018
Led the board of 6 and a 50+ member student organization; restructured its development program into distinct leadership and technical tracks and directed industry projects generating six-figure revenues. Awarded KIT's Outstanding Student Dedication Award.
Engineering leadershipBuilding productsLanguages
German (C2) · English (C2) · Spanish (C1) · Portuguese (C1) · French (B1) · Mandarin (HSK2)
- Django-allauth vs dj-rest-auth vs python-social-auth vs drf-social-oauth2 2022
Choosing the right Django social-auth package. My most-read piece.
- How to build a Google sign-in in Flutter without Firebase 2022
Google OAuth2 in Flutter with AppAuth, wired to your own backend.
- A Quick Intro to Convolutions in CNNs 2023
How convolutions actually work, for people who know dense layers.
More on Medium. Agentic engineering series coming soon on Substack.
- Clean Architecture
- The Pragmatic Programmer
- Architecture Patterns with Python
- The Lean Startup
- The Mom Test
- Thinking, Fast and Slow
- Deep Work
- Sapiens
- The Culture Map
- Petit pays
Full shelf on Goodreads.