Senior Marketing Automation Engineer (Event-Driven, AWS + Contentful)

We are building a production-grade marketing automation platform for a regulated B2B trade credit fintech that will be operating across multiple jurisdictions.

This is not a CRM setup role and not a no-code automation project.

The system is event-driven, serverless, and designed to scale internationally with clear separation between:

• configuration,
• execution,
• and analytics.

We are looking for an engineer who has already built systems like this — not someone learning the stack for the first time.

This role is a fit if you have built

• Event-driven marketing or growth infrastructure
• Headless CMS-driven campaign and persona configuration
• Serverless backends handling lead ingestion, classification, and automation triggers
• CRM integrations where the CRM is not the system of record

Non-Negotiable Experience (Please do not apply without these)

You must have hands-on experience with all three of the following:

1. Event-Driven Backend Architecture (AWS)

• AWS API Gateway
• AWS Lambda
• SQS and/or EventBridge
• Writing to a transactional database (Postgres or equivalent)
• Designing idempotent, retry-safe processors

If you have “used AWS” but have not built event-driven systems, this role is not a fit.

2. Contentful as a Headless Configuration Layer

Contentful is used not just for content, but as a configuration layer for:

• personas
• campaigns
• targeting rules
• structured content blocks

You must have

• designed Contentful content models
• worked with publish webhooks
• integrated Contentful with backend services (not only frontend)
• understood versioning and schema governance

General CMS or Webflow experience is not equivalent.

3. Marketing Automation via Webhooks (n8n / CRM)

• Webhook-driven automation
• CRM integration where the CRM is not the source of truth
• Bidirectional sync (tags, status, lifecycle)
• Experience debugging race conditions and retries
• Experience with n8n, GoHighLevel, or similar orchestration tools is required.

Current Stack (Context)

• Contentful (headless CMS & configuration)
• Next.js on Vercel (landing pages, ISR)
• AWS API Gateway, Lambda, SQS / EventBridge
• Aurora Postgres (system of record)
• n8n (orchestration)
• GoHighLevel (CRM & execution)
• Databricks (analytics)
• Twilio / SendGrid / email & SMS providers

You do not need to be an expert in every tool, but you must understand how these systems interact in an event-driven architecture.

What You Will Do

• Review and validate the existing marketing automation architecture
• Implement or refine:
• lead ingestion and validation
• persona matching logic
• campaign triggering and lifecycle flows
• CRM synchronisation

Ensure

• clean separation of concerns
• no business logic in the CRM or no-code tools
• reliable retries and observability
• Work directly with BA and founder (who is non-technical and hands-on)

This Is Not an CRM-only setup or Zapier / Airtable-centric automation with just workflows.

Nice to Have

• Fintech or regulated-industry experience
• Multi-region / international scale systems

Engagement

• Initial engagement: architecture validation + implementation sprint
• Ongoing work likely

We value judgment and system thinking over speed.

How to Apply (Important)

Please include all three of the following in your proposal:

• A short description of a similar system you have built (tools + scale)
• Your direct experience with: AWS serverless; Contentful content modelling; Webhook-driven marketing automation;
• one architectural decision you made in a past project — and why

We are looking to make a decision in the first week of January 2026 for an immediate start.