Senior Python Developer (Backend) with Node.js & GCP

Quick Facts

• Senior Backend Engineer responsible for scalable, secure services on Google Cloud Platform
• Hands-on coding role (Python + Node.js; Go as needed)

Description

You will design and develop production-grade backend services and cloud architecture on Google Cloud Platform for a large organization in the financial sector. The role combines active development with broader ownership of architecture, security, automation, and the surrounding technology ecosystem.

Responsibilities

• Develop and deploy production backend services using Python and Node.js (and Go when needed)
• Maintain high engineering standards, code quality, and architectural consistency
• Design and evolve scalable, secure, fault-tolerant services on Google Cloud Platform
• Build solutions using GKE and Cloud Run
• Create event-driven architectures with Pub/Sub
• Optimize PostgreSQL query performance for high-concurrency environments
• Own the full lifecycle of services on GCP: implementation and deployment, monitoring and observability, maintenance, and cost optimization
• Design and manage authentication/authorization mechanisms using OAuth2 and OpenID Connect
• Develop and automate infrastructure with Terraform and Infrastructure as Code
• Incorporate security, automation, and reliability from the design stage
• Identify improvement opportunities in existing systems and translate them into technical solutions
• Mentor and share knowledge to support team growth

Requirements

• 10+ years of software development experience
• Very strong Python skills
• Experience working with Node.js
• Practical experience with Google Cloud Platform, especially GKE, Cloud Run, or Filestore
• Knowledge of Terraform and Infrastructure as Code
• Experience designing scalable and secure backend services
• Practical understanding of security topics including Zero Trust, OAuth2, and OpenID Connect
• Ability to communicate freely in English

Benefits

• B2B contract cooperation
• Hybrid model: 6 days per month in the Kraków office