Senior Python Backend Engineer with CI/CD & Mentorship

Appsierra Group; Brussel; Sur place; EUR 90 000 - 130 000; Plein temps

Résumé du poste

Appsierra Group in Belgium seeks an experienced Python backend developer to drive design, implementation, and optimization of scalable services using FastAPI and AsyncIO. You will collaborate with product owners, data engineers, and IT operations to gather requirements and deliver robust backend systems.

You’ll mentor peers, participate in code reviews, implement CI/CD, and ensure security and performance across deployments while working with SQL/NoSQL databases, RabbitMQ, Docker, and Azure

Qualifications

• > IT/tech-related academic 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 continuous integration 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.
• > Good level of Dutch and/or French and English is required, German is a plus.

Responsabilités

• > Collaborate actively to the development and optimization of Python-based software applications.
• > Collaborate with stakeholders to gather requirements and define software specifications.
• > Engage with customers to address service request and ensure effective resolution.
• > Implement best practices for code quality, testing, and deployment (CI/CD).
• > Mentor junior developers and conduct code reviews.
• > Troubleshoot, debug, and resolve complex technical issues.
• > Work with DevOps and data engineering teams to ensure seamless integration and performance.
• > Ensure security, scalability, and maintainability of solutions.

Connaissances

Python

Backend development

FastAPI

AsyncIO

SQL

PostgreSQL

MSSQL

NoSQL

RabbitMQ

Service-based architecture

CI/CD

Software design patterns

Data structures & algorithms

Selenium

Mentoring/leadership

Agile

Communication

Security practices

Docker

Azure cloud

Legacy code refactoring

Multilingual

Formation

Bachelor’s or Master’s degree in IT/tech

Outils

Docker

Selenium

Description du poste

Appsierra Group in Belgium seeks an experienced Python backend developer to drive design, implementation, and optimization of scalable services using FastAPI and AsyncIO. You will collaborate with product owners, data engineers, and IT operations to gather requirements and deliver robust backend systems.

You’ll mentor peers, participate in code reviews, implement CI/CD, and ensure security and performance across deployments while working with SQL/NoSQL databases, RabbitMQ, Docker, and Azure