Senior Python Backend Engineer | APIs & Microservices

act digital; Lisboa; On-site; EUR 70,000 - 100,000; Full time

Job summary

Act Digital in Lisbon, Portugal seeks a Senior Python Backend Developer to design and implement scalable backend services, RESTful APIs, and microservices using Python with FastAPI and Flask. You will work on data integrations and real-time data exchange, applying clean architecture and secure development practices.

You will collaborate across business and technical teams, ensuring security, performance, and maintainability while contributing to architectural decisions and cloud deployments with

Qualifications

• Strong backend development experience.
• Advanced proficiency in Python.
• Experience with FastAPI and Flask.
• Strong SQL skills and PostgreSQL.
• Experience designing secure and scalable APIs.
• Knowledge of microservices architectures and integration patterns.
• Experience with event-driven integrations.
• Familiarity with CI/CD and testing practices.

Responsibilities

• Design, develop, and maintain secure RESTful APIs.
• Build microservices supporting business processes and data exchange.
• Define API contracts and integration standards.
• Ensure reliable communication between systems.
• Implement authentication, authorization, logging, and error handling.
• Contribute to API lifecycle management and documentation.
• Develop data integrations and real-time access to data.
• Support cloud deployments and containerization with Docker.
• Ensure scalability, security, and observability across services.
• Collaborate with cross-functional teams on architecture and planning.

Skills

Python

FastAPI

Flask

RESTful APIs

Microservices

SQL

PostgreSQL

Git

CI/CD

Testing

Observability

AWS

Tools

Docker

Jira

Confluence

Git

Job description

Act Digital in Lisbon, Portugal seeks a Senior Python Backend Developer to design and implement scalable backend services, RESTful APIs, and microservices using Python with FastAPI and Flask. You will work on data integrations and real-time data exchange, applying clean architecture and secure development practices.

You will collaborate across business and technical teams, ensuring security, performance, and maintainability while contributing to architectural decisions and cloud deployments with