Senior Multi-Tenant SaaS Reliability Architect

Cyberbacker Careers; Cebu City; On-site; PHP 1,800,000 - 3,000,000; Full time

Job summary

Cyberbacker Careers in Cebu City is seeking an experienced Senior Software Engineer to lead production software efforts for a multi-tenant B2B SaaS platform. You will own architecture, security, and end-to-end reliability across critical client workflows.

The role requires 8+ years building production software, deep skills in TypeScript, Next.js, Python, FastAPI, and Postgres, and hands-on experience with tenancy, security, testing, and disaster recovery.

Qualifications

• Eight or more years building production software with senior-level responsibility.
• Experience shipping a multi-tenant B2B SaaS product.
• Strong skills in TypeScript, Next.js, Python, FastAPI, Postgres, SQL.
• Proven judgment in multi-tenant architecture, tenant isolation, and security.
• Experience with queues, retries, idempotency, and backpressure.
• Experience managing external-provider quotas and cost controls.

Responsibilities

• Establish canonical production architecture, repository, data model, and release path.
• Freeze and harden the three highest-value end-to-end client workflows.
• Close gaps in tenant isolation, integrations, testing, recovery, security, and capacity.
• Consolidate or retire duplicate queues, surfaces, scripts, and pipelines.
• Own production releases, canaries, rollbacks, migrations, incident response, and disaster recovery.
• Enforce provider quotas, cost budgets, idempotency, backpressure, and operational telemetry.
• Direct AI coding agents through bounded tickets and rigorously review their output.
• Translate product and content requirements into executable acceptance contracts.
• Produce an evidence-backed assessment of 1,000-client capacity and unit economics.
• Create a technical roadmap that clearly separates platform hardening from new feature development.

Skills

TypeScript

Next.js

Python

FastAPI

Postgres

SQL

Tenant isolation

Security

End-to-end testing

Production ownership

Tools

Durable queues

Load testing

Disaster recovery

Job description

Cyberbacker Careers in Cebu City is seeking an experienced Senior Software Engineer to lead production software efforts for a multi-tenant B2B SaaS platform. You will own architecture, security, and end-to-end reliability across critical client workflows.

The role requires 8+ years building production software, deep skills in TypeScript, Next.js, Python, FastAPI, and Postgres, and hands-on experience with tenancy, security, testing, and disaster recovery.