Senior Backend Python Engineer — Remote (Poland)

payabl.; Warszawa; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Provident Fund

Learning budget

Wolt allowance (€150 monthly)

SportsBenefits membership

Company car (after one year)

Parking

Vacation days 25 + holidays + 10 sick

Discount card

Greek language classes

Company celebrations

International events

Job summary

payabl. is seeking a Senior Backend Engineer to design and build scalable Python microservices for a range of internal and customer-facing products. This remote-first role in Poland involves distributed systems, AWS, and modern CI/CD practices.

You will working with FastAPI or Django, Docker, and cross-functional teams to deliver high-performance, reliable services under load. Strong problem-solving and remote collaboration skills are essential.

Qualifications

• 5+ years of backend engineering experience with Python
• 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 (e.g., trading, payments, real‑time processing)
• Familiarity with event‑driven architecture (Kafka)
• Experience mentoring or supporting other engineers

Responsibilities

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

Skills

5+ years backend engineering

Strong Python

Distributed systems

Communication

Remote-first collaboration

Tools

Docker

GitLab CI/CD

AWS Lambda

FastAPI

Django

Kafka

Job description

payabl. is seeking a Senior Backend Engineer to design and build scalable Python microservices for a range of internal and customer-facing products. This remote-first role in Poland involves distributed systems, AWS, and modern CI/CD practices.

You will working with FastAPI or Django, Docker, and cross-functional teams to deliver high-performance, reliable services under load. Strong problem-solving and remote collaboration skills are essential.