Founded in 2005 in Lisbon by three visionary entrepreneurs, MoOngy quickly became a leading group in Engineering and Information Technology (IT) across Europe and North Africa. Today, with a presence in 14 countries and more than 40 subsidiary companies, MoOngy employs over 9,500 talents who share a common passion for innovation and excellence. The International Mobility Recruitment Department is dedicated to enhancing the mobility of IT professionals throughout Europe, facilitating the placement of talents in the various markets where it operates. Senior Full Stack Developer (Python JavaScript) – PharmaTech Solutions Location: Brussels, Belgium Hybrid: 2-3 times a week on the client’s office Type of Contract: Permanent Contract preferably Mandatory Languages: Dutch (B2 minimum) and English (C1) ✅ Candidates must possess European nationality or a valid work permit for Belgium ✅ Must-Haves Education; • Master’s in Computer Science, Engineering or related field Experience: 5–7 years of hands-on experience with Python; Solid frontend skills with JavaScript (React or similar) Industry Knowledge: Prior experience in, or strong understanding of, pharmaceutical environments Software Architecture: Deep knowledge of design patterns, system scalability, and OOP principles Languages: Python (main); JavaScript (React or equivalent for frontend) ⚙️ Frameworks & Testing: FastAPI, Flask, Pytest, automated CI pipelines Data & Messaging: PostgreSQL, MongoDB, Cassandra, Redis, S3, RabbitMQ, Kafka DevOps & Tools: Apache Airflow, Jenkins, Docker, OpenShift, Git / GitLab Architecture: Microservices, Asynchronous programming, Message-driven design Networking: Basic understanding of network topologies and their impact on software design Nice-to-Haves Experience with advanced CI/CD pipelines Understanding of data privacy and security in regulated environments (e.g. GxP) Exposure to data science workflows or machine learning integration Ability to translate business needs into scalable technical solutions Your Responsibilities: Gather and analyze user requirements, and translate them into solid technical specs Design, develop and maintain scalable backend services and responsive frontend interfaces Implement microservice-based architecture, event-driven or request-driven depending on context Write clean, efficient and maintainable code, with a strong emphasis on testing (unit, integration, E2E) Participate in code reviews and continuously improve software quality Mentor junior developers, lead by example and provide technical guidance Work closely with DevOps and infrastructure teams to streamline CI/CD workflows Engage with stakeholders from the pharmaceutical industry to ensure regulatory and functional alignment Advantages of joining MoOngy: International Mobility: A dedicated international mobility department offers personalized relocation programs to facilitate your move to a new country. Career Development: Work on cutting-edge technologies across various European markets. Continuous Learning: Free training and career-oriented certifications to expand your expertise. Personal Growth: Collaborate with top-tier professionals across Europe, exchanging knowledge and best practices. Global Network: Become part of a leading tech community, with access to exciting and challenging projects. @MoOngy Group we stand for equality and value diversity. We create a safe, diverse environment where opportunities are equal for everyone! We do not discriminate based on age, ethnicity, sexual orientation, gender, disability, or any factor other than merit. All applications with skills needed for the position are welcome!