Senior Python Backend Engineer — FastAPI & Cloud

Appsierra Group; Brussel; Sur place; EUR 65 000 - 100 000; Plein temps

Résumé du poste

Appsierra Group is seeking a seasoned Python backend developer to join a delivery-focused team. The role emphasizes building scalable services using Python, FastAPI, and modern backends, with strong emphasis on security, data validation, and event-driven architectures.

Candidates should bring 6+ years in development, proficiency in SQL databases (MSSQL/PostgreSQL), RabbitMQ, and experience with CI/CD and Docker. Multilingual communication and mentoring skills are valued in an agile environment.

Qualifications

• IT/tech degree, bachelor’s or master’s degree.
• 6+ years of experience in Development.
• 3+ years of experience using Python.
• Strong understanding of IT security requirements and their implementation ideally in the context of critical infrastructure
• Proficiency in Python for backend services, preferably with FastAPI or similar frameworks.
• Proficiency with data validation lib as Pydantic.
• Experience with AsyncIO.
• Experience in SQL.
• Experience with databases like MSSQL, PostgreSQL.
• Experience with RabbitMQ.
• Strong understanding of service-based architectures and event-driven systems
• Solid conceptual knowledge of software design patterns, scalability, and CI practices
• Knowledge of test automation frameworks (e.g Selenium)
• Solid understanding of software design patterns, data structures, and algorithms.
• Strong problem-solving skills and attention to detail.
• Ability to mentor and provide technical leadership.
• Experience working in agile environments.
• Excellent communication and collaboration skills.
• Experience with Azure cloud is a plus.
• Experience in NoSQL solutions is a plus.
• Ability to work with legacy code and participate to refactoring initiative.
• Familiarity with containerization using Docker and deployment pipelines in a CI/CD environment is a plus.

Connaissances

Python

Backend

FastAPI

AsyncIO

SQL

MSSQL

PostgreSQL

RabbitMQ

CI/CD

Docker

Azure

NoSQL

Legacy code

Leadership

Communication

Agile

English

Dutch

French

German

Formation

IT degree (Bachelor/Master)

Outils

Pydantic

Selenium

Docker

Azure

Description du poste

Appsierra Group is seeking a seasoned Python backend developer to join a delivery-focused team. The role emphasizes building scalable services using Python, FastAPI, and modern backends, with strong emphasis on security, data validation, and event-driven architectures.

Candidates should bring 6+ years in development, proficiency in SQL databases (MSSQL/PostgreSQL), RabbitMQ, and experience with CI/CD and Docker. Multilingual communication and mentoring skills are valued in an agile environment.