Senior Backend Integration Engineer (Agentic AI & Enterprise SaaS)

Growthline Partners, LLC; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Growthline Partners, LLC is seeking a hands-on engineering lead to own the backend integration layer for an AI-powered SDR demo. You will design APIs, connect n8n workflows, and integrate Microsoft Graph and Zoho CRM at scale.

You’ll build secure services with FastAPI/Flask, manage authentication flows, and ensure reliable, auditable data across systems. Collaboration with prompts and delivery teams is essential to ship enterprise-grade demos.

Qualifications

• 5+ years in backend engineering for SaaS platforms.
• Experience with workflow engines (n8n) and Python services.
• Hands-on with Microsoft Graph and Zoho CRM APIs.
• Security, reliability, logging, and observability practices.

Responsibilities

• Own backend integration layer and orchestration across enterprise SaaS APIs.
• Secure services and manage OAuth2 flows for MS Graph and Zoho CRM.
• Build adapters for Lyzr endpoints and LinkedIn enrichment; log to CRM.
• Instrument reliability with logging, retries, DLQs, and metrics.
• Translate playbooks into callable services and document them.
• Ensure scalable deployment with Docker/Kubernetes and cloud.

Skills

Backend engineering

API design (REST/GraphQL)

Workflow orchestration

Python (FastAPI/Flask)

OAuth2 / auth flows

Microsoft Graph integration

Zoho CRM APIs

n8n

CI/CD

Observability & reliability

Documentation & handoffs

Tools

n8n

FastAPI

Flask

Docker

Kubernetes

Git & CI/CD

Job description

This is a remote position.

About Growthline Partners

Growthline Partners is a business software and consulting firm serving SMB manufacturers, distributors, and project‑centric companies. We design and implement integrated enterprise platforms across Zoho, Salesforce, and Microsoft —bringing together CRM, project/accounting, analytics, and modern AI to drive measurable outcomes.

The Opportunity

We’re building an internal AI-powered SDR demo to showcase agentic automation for prospecting, outreach, CRM updates, and follow‑ups. The solution combines n8n for orchestration, Lyzr (agentic AI) for reasoning, Microsoft Graph for Outlook/Teams, LinkedIn enrichment, and Zoho CRM as the system of record . We need a hands‑on engineering lead to own backend integration—designing APIs, connecting tools, and standing up reliable workflows that can scale and be extended for client‑facing implementations.

Responsibilities

• Own the backend integration layer : implement robust workflow orchestration in n8n , integrate agent endpoints, and connect enterprise SaaS APIs.
• Stand up and secure services for agentic components (e.g., FastAPI/Flask); manage auth flows (OAuth2/tenant apps) for Microsoft Graph and Zoho CRM ; enforce data consistency with Zoho as the source of truth.
• Build adapters/connectors for Lyzr agent endpoints and LinkedIn enrichment; normalize and log activities to CRM with auditability.
• Instrument reliability and observability (idempotency, retries/backoff, DLQs, metrics, health checks, alerting).
• Collaborate with prompts/KB/process owners to translate playbooks into callable services and reusable workflows; contribute to technical docs and demo handoff packs.
• Harden security & compliance : secrets management, token refresh, role‑based access, PII handling; align with scalable deployment (Docker/Kubernetes, cloud).

Requirements

• 5+ years in backend engineering/integration for SaaS platforms; strong API design (REST/GraphQL), webhooks, event‑driven architecture.
• Proven experience with workflow engines (preferably n8n ) and Python services (FastAPI/Flask), including containerization and CI/CD.
• Hands‑on with Microsoft Graph (Outlook mail send, Teams notifications) and Zoho CRM APIs, OAuth scopes/permissions, and CRM activity logging.
• Practical exposure to agentic AI platforms ( Lyzr , LangChain) and integrating AI outputs into deterministic workflows.
• Reliability mindset: structured logging, tracing, metrics/monitoring, circuit breakers, idempotency, and robust error handling.
• Clear written communication and the ability to document architectures and hand off to delivery teams.

Nice to Have

• Experience with LinkedIn APIs for lead enrichment and compliance‑aware usage.
• Background in manufacturing/distribution/project‑centric businesses or consulting integrations across Zoho/Salesforce/Microsoft.
• Knowledge of vector databases and memory for agent workflows (e.g., Pinecone/Azure Cognitive Search).

How We Work

You’ll join a small, senior team that values speed with rigor—shipping demos that are client‑ready while maintaining enterprise‑grade fundamentals (security, reliability, traceability). We prioritize pragmatic design, clean interfaces, and documentation that lets others build on your work.

Originally posted on Himalayas.