Python experts for 10 years: Django, Flask & FastAPI
Python has been at the core of our tech stack since KERN-IT was founded. We build web applications with Django, high-performance APIs with FastAPI, microservices with Flask, and data pipelines with Celery.
Our team has over 10 years of Python experience. It's not just another language in our stack: it's our primary technology. Our platforms run on PostgreSQL, TimescaleDB, Elasticsearch and PostGIS — databases chosen based on the real needs of each project.
Why Python? Because it's the native language of artificial intelligence. TensorFlow, PyTorch, LangChain, scikit-learn, OpenAI, Claude — the entire AI ecosystem runs on Python. By building your platform in Python, you're AI-ready from day one: integrating an LLM agent, a RAG pipeline or intelligent automation requires no rewrite.
Three frameworks, one language
Flask
Our most used framework. Lightweight, flexible and modular, Flask lets us build exactly what the project needs, nothing more. Ideal for business platforms, REST APIs and applications that need fine-grained control over every component.
Django
For projects that benefit from a batteries-included framework: Wagtail CMS, back-offices, portals with authentication. Powerful ORM, auto-generated admin, migrations — everything included for fast delivery.
FastAPI
For high-performance APIs: automatic validation with Pydantic, native OpenAPI documentation, async/await support. Ideal for microservices, real-time integrations and mobile app backends.
Our technical ecosystem
Databases
PostgreSQL in production, TimescaleDB for time series (IoT, monitoring), Elasticsearch for full-text search, PostGIS for geospatial data.
Asynchronous tasks
Celery + Redis for background tasks: email sending, report generation, image processing, data synchronisation. Event-driven architecture.
AI & Machine Learning
LLM integration (Claude, GPT), RAG, intelligent agents. Our internal agent A.M.A has been developed in Python since 2018. Our tool Barnai uses AI to rethink job searching.
CMS & products
Wagtail (Python CMS) for websites and content platforms. Peppol Outbox, our PEPPOL electronic invoicing solution. Docker, Grafana, CI/CD.
Why choose Python
Natively AI-ready
Python is the reference language for AI: LLMs, RAG, machine learning, NLP. Your Python platform can integrate intelligent agents without migration or rewrite. You invest in a technology that evolves with AI.
Massive ecosystem
400,000+ packages on PyPI. Whether for data, web, automation, mapping or IoT, there's a mature and maintained library. Less code to write, more reliability.
Readable and maintainable
Python enforces clear and structured code. Result: your teams can take over the project, a new developer understands the code quickly, and technical debt stays under control.
They trust us
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Frequently asked questions
Django for complete business applications (ERP, CRM, CMS) that need an ORM, admin and authentication system. FastAPI for high-performance APIs, microservices and async backends. Flask for lightweight services and cases where you want to assemble your own components. We guide you to the right framework for your project.
Yes. We conduct Python code audits: quality, security, performance, technical debt. Whether your project is in Django, Flask or FastAPI, we can take over maintenance, refactor or plan a migration.
Python excels for business applications, AI, data and automation. A single language for your backend, APIs, scripts and ML models. Instagram, Spotify and Dropbox run on Django. It's also the native language of the AI ecosystem.
PostgreSQL is our default choice for its reliability and advanced features. We add TimescaleDB for temporal data (IoT, logs), Elasticsearch for full-text search, and PostGIS for geographic data. The choice depends on the use case, not preference.
Yes, DRF is our main tool for REST APIs in Django. For new API-first projects, we also recommend FastAPI which offers superior performance and native OpenAPI documentation. In both cases: serialisation, pagination, JWT authentication, versioning.
Need Python experts?
Django, Flask or FastAPI — contact our team in Brussels. Python has been our primary language for over 10 years.