Big Water Consulting - Senior Python Developer

ictjob.be

Brussels, Belgium Posted September 30, 2026

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On-site Full-time Senior
Job Description

As a Senior Python Developer, you will be instrumental in architecting, developing, and maintaining resilient software solutions essential to Clients core business activities. You will work hand-in-hand with multidisciplinary teams to deliver reliable, high-performing applications while fostering the continuous enhancement of technical standards. Your main assignment will center around the internal monitoring platform, which is dedicated to monitoring and maintaining application health.

The internal monitoring facilitates the implementation and management of sophisticated synthetic and log checks for live applications, ensuring timely information about their operational status and coordinating SWIFT notification to relevant personnel whenever intervention is warranted. At the heart the platform lie the monitoring and alerting engines, both developed in Python, alongside all associated monitoring scripts. Your skills and experience will be pivotal to the ongoing evolution and reliability of this solution.

Key responsibilities

  • 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.

Key stakeholders

  • Other software development teams Product Owners & Business Analysts Data Engineers & Architects IT Operations Business stakeholders 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.
Required Skills
Python Swift collaboration testing CI/CD troubleshooting DevOps data engineering software development FastAPI SQL MS SQL Server PostgreSQL RabbitMQ design patterns Selenium
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