CareerPlan

Senior Python Engineer (Skycash)

Poland | WarsawFull-time2026-10-19
On-site · Poland

Core

Design, develop, and maintain high-performance backend systems and APIs supporting real-time interactions and large-scale user activity for a mobile payment platform.

Role type

Senior Python backend engineer

Builds

Scalable backend services, RESTful/GraphQL APIs, and infrastructure for mobile payment transactions

Domain

Fintech / Mobile Payments

Required skills

Python, FastAPI/Flask, RESTful/GraphQL API design, asynchronous frameworks, SQL/NoSQL databases, Docker/Kubernetes, CI/CD, AI coding agents

Preferred skills

React Native/Flutter, WebSockets/MQTT, multi-tenant architecture, mobile analytics, agentic development workflows

Technologies

FastAPI, Flask, Docker, Kubernetes, Prometheus, Sentry, ELK, Lambda, Cloud Functions, Claude Code, Cursor, GitHub Copilot

Responsibilities

Build and maintain scalable backend services; Design and implement robust RESTful and GraphQL APIs; Collaborate with front-end and mobile teams; Ensure back-end services scale to handle high concurrency; Work with asynchronous frameworks for real-time features; Design efficient data models and manage databases; Use CI/CD and containerization tools; Use AI coding agents throughout the development lifecycle; Write clean, testable, and well-documented code

Seniority

Senior, hands-on IC