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.