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Senior Backend Python Engineer (Gateway)

Portugal🌐 Remote💼 Full-time🗓 2026-09-17 → 2026-09-25

Core

Design, develop, and implement high-performance payment gateway solutions, modernizing legacy Perl systems with Python microservices to ensure stable transaction processing.

Role type

Senior Backend Python Engineer (Gateway)

Builds

Scalable payment processing microservices and integrations for merchants

Domain

Fintech / Payments

Deliverable

production ML models | product features

Required skills

Python (FastAPI, AsyncIO), Perl, Distributed Systems, API Integration, Cloud Infrastructure (AWS), Containerization (Docker), Event-driven Architecture

Preferred skills

Kafka, RabbitMQ, CI/CD pipelines

Technologies

Python, Perl, FastAPI, AsyncIO, AWS (Lambda, ECS, SQS, SNS), Docker, GitLab, Kafka, RabbitMQ

Responsibilities

Architect and implement scalable Python microservices to replace legacy components; Integrate and manage complex third-party payment APIs and webhooks; Lead code reviews and drive engineering best practices; Collaborate with DevOps to improve CI/CD pipelines; Troubleshoot complex production issues in distributed systems; Mentor other engineers on the team.

Seniority

Senior, hands-on IC with mentorship responsibilities

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