Senior Backend Infrastructure Engineer

Job Title: Senior Backend Infrastructure Engineer

Experience: 13+ Years

Location: Remote

Timing: (5:30 PM – 2:30 AM IST)

Notice Period: Immediate Joiners Only

Job Overview

We are seeking a highly experienced Senior Backend Infrastructure Engineer to design, build, and optimize scalable, secure, and production-grade cloud-native applications. The ideal candidate will have deep expertise in multi-tenant SaaS architectures, strong hands-on experience with Python (FastAPI), and advanced knowledge of GCP services.

This role requires ownership of architecture decisions, production readiness, and ensuring secure, scalable deployments in a high-availability environment.

Key Responsibilities

Architecture & Development

• Design and develop scalable backend services using Python (FastAPI).
  
• Architect and implement multi-tenant SaaS solutions with strict data isolation.
  
• Build cloud-native applications leveraging Google Cloud Platform (GCP) services.
  

Multi-Tenant Data Isolation

• Implement robust Firestore query scoping to ensure complete data isolation between tenants.
  
• Define and enforce Firestore security rules for secure access control.
  

Cloud & Infrastructure

• Deploy and manage applications using Cloud Run.
  
• Configure and optimize IAM roles, permissions, and policies.
  
• Work with Pub/Sub for event-driven architecture and messaging systems.
  
• Manage storage and access using Google Cloud Storage (GCS).
  

CI/CD & Automation

• Design and implement CI/CD pipelines using GitHub Actions.
  
• Automate testing, build, and deployment processes specifically for Cloud Run environments.
  

Production Readiness & Optimization 

• Conduct production readiness reviews across:
  
• Cloud Run configurations (scaling, concurrency, performance)
  
• Security (IAM, secrets management)
  
• Storage and access control (GCS permissions)
  
• Ensure system reliability, scalability, and performance tuning.
  

Collaboration & Leadership

• Collaborate with cross-functional teams including DevOps, product, and frontend teams.
  
• Provide technical leadership, mentorship, and best practices for cloud-native development.
  
• Drive code quality, design reviews, and architectural governance.
  

Required Skills & Qualifications

• 13+ years of experience in software development and cloud architecture.
  
• Strong hands-on expertise in Python, specifically FastAPI.
  
• Deep experience with Google Cloud Platform (GCP), including:
  
• Cloud Run
  
• Firestore (including security rules and data modeling)
  
• Pub/Sub
  
• IAM
  
• Proven experience building and scaling multi-tenant SaaS applications in production.
  
• Strong understanding of microservices architecture and API design.
  
• Experience with CI/CD tools, preferably GitHub Actions.
  
• Expertise in cloud security, secrets management, and access control.
  
• Strong problem-solving and system design skills.
  
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