Senior Python Backend Engineer - Fintech, Remote

payabl; Warszawa; On-site; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Annual Learning Budget

Company celebrations

Global events & collaboration

Job summary

payabl. is expanding its engineering team and seeks a Senior Backend Engineer to design and build scalable Python microservices in a distributed architecture. You will work on high-performance backends, integrate external APIs, and deploy on AWS with CI/CD support in a remote-from-Poland setup.

You should have 5+ years of backend experience, strong Python skills, and familiarity with FastAPI or Django, Docker, and GitLab. Fintech experience is a plus.

Qualifications

• 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 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 and event-driven architecture (Kafka).
• Experience mentoring or supporting other engineers.

Responsibilities

• Design and implement scalable Python microservices in a distributed architecture.
• Build high-performance backend systems for reliability under heavy load.
• Integrate third-party APIs and external services.
• Collaborate with cross-functional teams on system design approaches.
• Work with AWS services to architect and deploy solutions.
• Improve CI/CD pipelines and deployment processes with DevOps.
• Lead code reviews to maintain engineering standards.
• Identify bottlenecks and drive performance improvements.
• Troubleshoot complex production issues in distributed systems.
• Guide best practices within the team.

Skills

Python

Microservices

Distributed systems

FastAPI

Django

AWS

Docker

CI/CD

GitLab

Problem-solving

Communication

Remote-friendly

Fintech experience

Tools

Kafka

AWS Lambda

Terraform

Job description

payabl. is expanding its engineering team and seeks a Senior Backend Engineer to design and build scalable Python microservices in a distributed architecture. You will work on high-performance backends, integrate external APIs, and deploy on AWS with CI/CD support in a remote-from-Poland setup.

You should have 5+ years of backend experience, strong Python skills, and familiarity with FastAPI or Django, Docker, and GitLab. Fintech experience is a plus.