Backend Developer – Python · FastAPI · PostgreSQL · Docker

I design and build backend services and REST APIs, with a strong focus on clean architecture, testing and maintainability. I’m currently working on a Geo Information Center (GIC) platform that plans and processes drone flight missions for geospatial analysis using AI models.

• Backend developer based in the Canary Islands (Spain).
• Currently working on microservices for drone mission planning, geospatial data processing and AI-powered products (suspicious activity detection, wildfire prevention, biodiversity analysis, etc.).
• Strong focus on:
  • Clean, layered architectures
  • Test-driven development mindset (pytest)
  • Database design and migrations (SQLModel + Alembic, PostgreSQL)
  • Authentication & authorization (Authentik, OAuth/OpenID-style flows)
• I enjoy taking ownership from design to deployment: modeling the domain, defining API contracts, implementing well-tested services and improving performance when something is slow or fragile.

💬 I speak English and Spanish, so feel free to reach out in either language.

Languages & backend

• Python, TypeScript / JavaScript
• FastAPI, Django, Flask
• REST APIs, microservices, background workers

Data & storage

• PostgreSQL, MySQL
• SQLModel, SQLAlchemy, Alembic
• Basic experience with MongoDB and message-based systems (MQTT)

DevOps & tooling

• Docker & Docker Compose
• Git, GitHub, GitHub Actions
• Testing with pytest, coverage, TDD mindset
• Structured logging, profiling, observability basics

Other

• Agile practices (Scrum/Kanban)
• Clean Architecture, SOLID, design patterns

Here are some repositories that represent how I like to build backend services:

• fastlayers
  Template for building FastAPI-based APIs using a layered architecture (routes → services → repositories → models), with a focus on maintainability and clear separation of concerns.

• fastgen
  CLI tool to quickly generate structured FastAPI projects with Docker integration, database support (MySQL, MariaDB, PostgreSQL), API versioning and optional extras like Alembic.

• mqtt-message-emitter
  Lightweight, scenario-driven tool for publishing synthetic MQTT messages at precise rates. Separates a reusable framework (venv lifecycle, runner, profiling) from pluggable “scenarios”.

• swingstat
  Ongoing project to analyze the performance of amateur baseball players. Combines data modeling, statistics and API design.

• algorithms
  Exercises and notes focused on improving problem-solving skills in Python.

I’m gradually cleaning up and documenting older repositories so they reflect better how I work today.

• Prefer clean, explicit code over clever tricks.
• Aim for small, composable services with clear boundaries.
• Write tests that matter, not just to increase a coverage number.
• Care a lot about developer experience (make it easy for others to run, test and extend the code).
• Document APIs using OpenAPI and keep code and documentation in sync.

• 🌐 Website: fernandoc.dev
• 💼 LinkedIn: linkedin.com/in/fernandoc-dev
• ✉️ Email: fer@fernandoc.dev

If you’re working on something related to FastAPI, backend architectures, geospatial data or sports analytics, I’d be happy to connect.