Senior Backend Engineer

3 days ago


Chennai, Tamil Nadu, India ABEX Excellence Pvt Ltd Full time

About the Role

We're seeking an experienced Backend Engineer with DevOps expertise to transform our functional prototype into a production-ready, scalable SaaS platform. The ideal candidate will architect and implement a robust multi-tenant system capable of handling scheduled web automation tasks across thousands of concurrent users.

Key Responsibilities

  • Convert our existing web automation prototype into a scalable, production-grade service
  • Design and implement a multi-tenant architecture with isolated client workspaces
  • Build sophisticated task queuing and scheduling systems with asynchronous processing
  • Develop intelligent rate-limiting mechanisms to prevent API throttling
  • Implement secure user authentication and workspace management
  • Create monitoring systems to track automation success rates and system health
  • Deploy and maintain cloud infrastructure using modern DevOps practices

Technical Requirements

  • 4+ years of experience with Python backend development
  • Strong knowledge of database design (PostgreSQL) for workflow state management
  • Experience with job queue systems (Redis, RabbitMQ, Bull, Celery)
  • Proficiency with Docker, and CI/CD pipelines
  • Familiarity with browser automation frameworks (Puppeteer, Playwright, Selenium)
  • Understanding of proxy management and request fingerprinting
  • Experience building multi-tenant SaaS applications
  • Knowledge of AWS/GCP/Azure cloud infrastructure

Bonus Skills

  • Experience with scheduled task management at scale
  • Knowledge of detecting and avoiding automation detection systems
  • Background in B2B SaaS platforms with usage-based billing
  • Experience with Redis for rate limiting and state management
  • Familiarity with event-driven architectures

About Our Product

Our B2B SaaS platform helps sales and marketing professionals automate their outreach workflows to generate leads and nurture business relationships. We're focused on creating intelligent, compliant automation that respects platform limitations while providing significant value to our users.



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