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Full stack software architect, ai saas

ISIR AI
Full Timeprincipal
INPosted March 17, 2026

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TypeScriptSQLReactNext.jsNode.jsGCPDockerRedisRESTCI/CDAPISaaS

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Job Description

As a Senior Full Stack Engineer at this company, you will be responsible for designing and building a scalable system architecture for an AI-driven SaaS platform. Your role will involve architectural thinking, layered design, and building a reusable SaaS foundation. You will work closely with the founders and later collaborate with an AI Lead to extend intelligence capabilities on top of the platform.

  • *Role Overview:**
  • Architect and build a modular SaaS platform supporting multi-tenant structure, multi-stage workflows, AI control panels, cross-channel execution, reporting, and AI orchestration.
  • Work closely with founders and AI Lead to extend intelligence capabilities.
  • Hands-on role with real system ownership and long-term growth into platform leadership.
  • *What You Will Design & Build:**
  • *Core SaaS Foundation**
  • Multi-tenant architecture
  • User & organization management
  • Role-based access control (RBAC)
  • Audit logs & activity tracking
  • API versioning & structured service layers
  • Configurable tenant-level settings
  • *Workflow & Process Engine**
  • Multi-stage configurable workflows
  • State management across steps
  • Conditional branching & execution logic
  • Task tracking & retry handling
  • Process logging and auditability
  • *Execution & Integration Framework**
  • Third-party API connectors
  • Webhooks & event-driven triggers
  • Async job processing & queue systems
  • Cross-channel execution logic
  • Failure handling & retries
  • *AI Integration Layer**
  • Clean AI abstraction layer
  • Multi-model routing
  • Retry/fallback handling
  • Guardrails & structured output validation
  • Async AI workflows
  • *Dashboards & Reporting**
  • Backend support for multi-level dashboards
  • Aggregated metrics & reporting pipelines
  • Historical data tracking
  • Background analytics jobs
  • Export-ready reporting architecture
  • *Cloud & Infrastructure (GCP Primary)**
  • Experience with Cloud Run, Cloud SQL, Pub/Sub, IAM configuration, CI/CD pipelines, monitoring & logging
  • *Technical Requirements:**
  • *Backend**
  • Strong Node.js/TypeScript
  • REST API design & clean service layering
  • Postgre SQL schema design
  • ORM experience (Prisma or similar)
  • Caching strategies (Redis or equivalent)
  • Async job processing
  • *Frontend**
  • React/Next.js
  • Scalable component architecture
  • API-driven frontend design
  • *Dev Ops Awareness**
  • Docker
  • CI/CD
  • Production deployment experience
  • *Responsibilities:**
  • Design a clean layered architecture
  • Actively write and review code
  • Own core modules of the platform
  • Improve development efficiency
  • Mentor junior engineers
  • Ensure scalability and maintainability
  • *Ideal Candidate Profile:**
  • 811 years of experience in software engineering
  • Experience building SaaS products
  • Strong backend engineering background
  • Comfortable with cloud deployments
  • AI-aware and interested in building AI-driven platforms
  • Ownership mindset and strong problem-solving ability
  • *Application Requirement (Must Share):**
  • SaaS systems youve designed and built
  • Your role in architecture/design
  • Experience with workflow or complex backend systems
  • Any AI-integrated production systems
  • Cloud deployment experience

Joining this company will provide you with the opportunity to help build the core architecture of an AI-driven workflow SaaS platform from the ground up and grow into a platform leadership role. As a Senior Full Stack Engineer at this company, you will be responsible for designing and building a scalable system architecture for an AI-driven SaaS platform. Your role will involve architectural thinking, layered design, and building a reusable SaaS foundation. You will work closely with the founders and later collaborate with an AI Lead to extend intelligence capabilities on top of the platform.

  • *Role Overview:**
  • Architect and build a modular SaaS platform supporting multi-tenant structure, multi-stage workflows, AI control panels, cross-channel execution, reporting, and AI orchestration.
  • Work closely with founders and AI Lead to extend intelligence capabilities.
  • Hands-on role with real system ownership and long-term growth into platform leadership.
  • *What You Will Design & Build:**
  • *Core SaaS Foundation**
  • Multi-tenant architecture
  • User & organization management
  • Role-based access control (RBAC)
  • Audit logs & activity tracking
  • API versioning & structured service layers
  • Configurable tenant-level settings
  • *Workflow & Process Engine**
  • Multi-stage configurable workflows
  • State management across steps
  • Conditional branching & execution logic
  • Task tracking & retry handling
  • Process logging and auditability
  • *Execution & Integration Framework**
  • Third-party API connectors
  • Webhooks & event-driven triggers
  • Async job processing & queue systems
  • Cross-channel execution logic
  • Failure handling & retries
  • *AI Integration Layer**
  • Clean AI abstraction layer
  • Multi-model routing
  • Retry/fallback handling
  • Guardrails & structured output validation
  • Async AI workflows
  • *Das

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