Senior Python Software Engineer

About the role

MoOngy is looking for a Senior Python Software Engineer to join its Financial Services team in Lisbon. You will work in a hybrid model, collaborating with product managers, designers and fellow engineers to deliver high‑quality, scalable Python applications that power our innovative financial solutions.

Key responsibilities

• Design, develop and maintain Python applications using Django, Flask or similar frameworks.
• Write clean, well‑tested, well‑documented code and participate in code reviews.
• Integrate, test, debug and maintain software across development, staging and production environments.
• Identify and resolve performance, scalability and security issues.
• Collaborate with cross‑functional teams to shape technical design and documentation.

Required profile

• 3+ years of professional Python development experience.
• Proficiency with RESTful APIs, relational or NoSQL databases, and distributed system concepts.
• Strong knowledge of Git, pull requests, Agile/Scrum, CI/CD pipelines and Docker.
• Experience with cloud platforms such as GCP, AWS or Azure.
• Fluent English (C1) and legally authorized to work in Portugal.

Required skills

• Python
• Django / Flask
• RESTful APIs
• Relational databases (e.g., PostgreSQL, MySQL)
• NoSQL databases (e.g., MongoDB, Cassandra)
• Distributed system concepts
• Git
• Agile / Scrum
• CI/CD
• Docker
• Infrastructure‑as‑code
• Unit, integration and automated testing
• Cloud platforms: GCP, AWS, Azure

What we offer

• Opportunity to drive innovation in the financial services sector.
• Challenging projects with real impact and modern technology stack.
• Continuous learning through trainings, certifications and structured career growth.
• International, collaborative team environment.
• Commitment to diversity, inclusion and equal opportunity.