Lead Python Engineer - Brussels or Paris

Arcus Search
Brussels, Belgium
yesterday

Role details

Contract type
Temporary contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior

Job location

Brussels, Belgium

Tech stack

Amazon Web Services (AWS)
Azure
Cloud Computing
Code Review
Python
MongoDB
NoSQL
Scrum
Cloud Platform System
Backend
GIT
FastAPI
Pytest
REST
Terraform
Docker
Microservices

Job description

We're currently looking for a Lead Python Engineer to join an international engineering environment focused on modern backend development, scalable APIs, and high-quality software delivery.

This is a senior-level role for someone who enjoys being hands-on technically while also helping drive architecture decisions, engineering standards, and technical direction within the team.

You'll be working closely with developers, product owners, and cross-functional teams to build reliable, scalable, and maintainable backend solutions in a cloud-based environment.

Responsibilities

  • Develop and maintain backend services using Python and FastAPI

  • Design scalable REST APIs and microservices

  • Contribute to architecture and technical design decisions

  • Support code reviews, mentoring, and engineering best practices

Requirements

  • 8+ years of professional Python development experience

  • Strong FastAPI and REST API development experience

  • Experience building scalable backend systems in production environments

  • Strong understanding of testing frameworks such as Pytest

  • Experience with Docker, Git, and CI/CD environments

  • Knowledge of NoSQL databases (MongoDB is a plus)

  • Previous experience in technical leadership or mentoring roles

Nice to Have

  • Async programming / concurrency in Python

  • Terraform or Infrastructure as Code exposure

  • Cloud platform exposure (AWS, Azure, or GCP)

  • Agile / Scrum experience

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