Senior Python Backend Developer

We're powering the growth of merchants by helping them take payments easily, securely and globally.

• 5+ years of backend engineering experience with strong Python expertise.
• Proven experience building and scaling microservices architectures.
• Strong knowledge of FastAPI or Django.
• Experience working with AWS (including services such as Lambda).
• Strong experience with Docker and containerization.
• Experience with CI/CD pipelines (GitLab preferred).
• Strong understanding of distributed systems and high-load environments.
• Experience designing and optimizing systems for performance and scalability.
• Solid experience integrating third-party APIs.
• Strong problem-solving and analytical skills.
• Excellent communication skills and ability to work in a remote-first environment.
• Experience in fintech, payments, or financial platforms.
• Experience with high-throughput systems (e.g. trading, payments, real-time processing).
• Familiarity with event-driven architecture (Kafka, messaging systems).
• Experience mentoring or supporting other engineers.

• Design and implement scalable Python microservices in a distributed architecture.
• Build and optimize high-performance backend systems, ensuring scalability and reliability under high load.
• Integrate and manage third-party APIs and external services.
• Collaborate with cross-functional teams to define technical solutions and system design approaches.
• Work with AWS services (e.g. Lambda, cloud infrastructure) to architect and deploy solutions.
• Improve and maintain CI/CD pipelines and deployment processes in collaboration with DevOps.
• Lead and contribute to code reviews, ensuring high engineering standards.
• Identify system bottlenecks and drive performance and scalability improvements.
• Troubleshoot complex production issues in distributed systems.
• Contribute to technical discussions and guide best practices within the team.

Location: Remote from Portugal or Poland.