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Senior Engineer - .NET/Python

Wex

Wex

Software Engineering
São Paulo, SP, Brazil · Remote
Posted on Mar 25, 2026

About the Team/Role

We are looking for a Python Developer to join our team and help build scalable, secure, and high-performance applications, particularly in the payments and benefits space. This role involves designing cloud-native services, implementing microservices architectures, and collaborating on innovative solutions that make a tangible business impact.

How you'll make an impact

  • Design, develop, and maintain C# services and microservices.

  • Design, develop, and maintain cloud-native Python services and microservices.

  • Develop and maintain CI/CD pipelines to support automated deployments.

  • Collaborate with the team on data modeling and backend service design.

  • Write clean, maintainable, testable, and well-documented Python code.

  • Participate in code reviews and enforce best practices to ensure high code quality.

  • Troubleshoot and resolve issues efficiently in production and development environments.

  • Quickly learn new technologies and switch between tech stacks as needed.

  • Stay up-to-date with industry best practices and emerging technologies.

Experience you'll bring

  • Strong professional software development experience.

  • Solid experience with Python and frameworks such as FastAPI.

  • Experience in developing automated unit and integration tests.

  • Experience with event-driven architectures and Kafka.

  • Strong knowledge of object-oriented programming principles.

  • Experience with SQL and database design.

  • Understanding of SSO technologies (OAuth, SAML).

  • Experience with cloud platforms (AWS, Azure).

  • Hands-on experience with microservices architecture.

  • Strong problem-solving, debugging, and collaboration skills.

Nice to have:

  • Familiarity with frontend technologies (e.g., Angular)

  • Experience with CI/CD pipelines and DevOps practices

  • Exposure to Okta or Auth0 for identity management

  • Familiarity with Kubernetes and Terraform

  • Familiarity with MongoDB