Hybrid Senior Python Engineer

at humani

• Job title: Senior Python Engineer
• Job type: Full Time
• Experience level: Senior
• Salary: €3,200 - €3,500 per month
• Degree requirement: Bachelor's Degree
• Tech skills: AWS, Azure, Cloud, Docker, Kubernetes, Numpy, Pandas, Python, Scikit-Learn
• Location requirements: Hybrid, Marousi, Greece

About the role

• Senior Python Engineer responsible for building AI-enabled backend systems in a leading fintech firm. Collaborating with data scientists to implement innovative data-driven solutions.

Responsibilities

• Design, develop, and maintain Python-based backend systems that support AI-enabled and data-driven applications.
• Collaborate with data scientists and ML engineers to integrate machine learning models into production systems.
• Contribute to data preprocessing, feature engineering, and inference pipelines supporting AI workflows.
• Build and maintain RESTful APIs and backend services powering fintech products.
• Participate in multi-tenant service development, ensuring secure and reliable data handling.
• Ensure code quality through unit, integration, and regression testing, code reviews, and adherence to best practices.
• Support team growth by sharing knowledge and mentoring less experienced developers.
• Monitor and improve system performance, scalability, and maintainability, supporting the evolution of AI-enabled features.

Requirements

• 4–6 years of Python back end development experience, ideally in AI-enabled applications.
• Familiarity with AI/ML libraries and frameworks such as Scikit-learn, HuggingFace Transformers, or similar, plus NumPy, Pandas, and Pydantic.
• Experience developing RESTful APIs and backend services (e.g., FastAPI or similar).
• Exposure to cloud environments, containerization, and CI/CD workflows (AWS, Azure, Docker, Kubernetes) is a plus.
• Basic understanding of machine learning concepts, model inference, and feature pipelines.
• Strong skills in writing clean, maintainable, and well-tested code.
• Strong analytical and problem-solving abilities, with excellent collaboration skills.
• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• Fluency in English, both written and verbal.
• Experience in Fintech or Financial Services is advantageous.

Benefits

• Competitive salary package 3200 - 3500 gross euros monthly
• Meal benefits: Ticket restaurant (120 euros x 12) and annual bonus programs.
• Private health insurance and onsite occupational doctor
• Cutting-edge IT equipment, mobile, and data plan.
• Modern facilities, free coffee, beverages, and indoor parking.
• Onsite gym, wellness facilities, and ping pong room.
• Flexible work arrangements currently on 50% - 50% ratio working from home.