Interim HubSpot Integration Architect (Hands-on)

WebHosting; Almere; Remote; EUR 90,000 - 130,000; Full time

Job summary

Mijndomein in the Netherlands is seeking an interim HubSpot Integration Architect (hands-on) to shape the future of our customer and data architecture during the move to Nucleus, our new central platform for commerce, customer journeys and subscription management.

You will own the HubSpot integration workstream, connect HubSpot with Nucleus and our BI/data platform, collaborate with product, development and BI teams, and translate architectural decisions into working, production-ready solutions

Qualifications

• Proven experience as an architecture-focused HubSpot/data integration role.
• Hands-on, delivery-oriented with migration project exposure.
• Ability to translate architecture decisions into practical solutions.

Responsibilities

• Assess existing HubSpot environment, integrations and data flows for improvements.
• Design a scalable integration architecture linking HubSpot, Nucleus and BI platform.
• Define data ownership, mappings and synchronisation rules.
• Translate architecture decisions into working integrations with developers.
• Collaborate with product, development and BI teams to align solutions with business needs.
• Support testing, migration readiness and production deployment; document architecture.

Skills

HubSpot

Data integration

System architecture

Stakeholder collaboration

Tools

ETL tools

API gateways

SQL

Job description

Interim HubSpot Integration Architect (Hands-on)

Mijndomein ·Netherlands, Almere

Not specified Full-time Senior Marketing

Job Description

Help shape the future of our customer and data architecture.

At Mijndomein, we’re building the next generation of our digital commerce and customer platforms. As we transition toNucleus, our new central platform for commerce, customer journeys and subscription management, we’re looking for an experiencedInterim HubSpot & Data Integration Architectto help us get the architecture right.

And this isn’t just another migration.

We’re taking the opportunity to rethink how HubSpot connects with our wider technology landscape, simplify existing integrations and create a scalable, maintainable data architecture.

That’s where you come in.

You’ll take ownership of the HubSpot integration workstream, connecting the dots betweenHubSpot, Nucleus and our developing BI/data platform.

From assessing existing integrations to designing and implementing new solutions, you’ll work closely with our Product, Development and BI teams to turn architectural decisions into working solutions.

This is a hands-on architecture role.You’ll have the freedom to challenge existing approaches, influence technical decisions and help build something that lasts beyond the migration.

What you’ll be working on

You’ll play a key role in shaping and delivering our future integration architecture.

Your responsibilities include:

Explore & assess:Review our existing HubSpot environment, integrations and data flows to identify dependencies, inefficiencies and opportunities for improvement.

Design & simplify:Define a scalable integration architecture connecting HubSpot, Nucleus and our BI/data platform, avoiding unnecessary duplication.

Create clarity:Establish data ownership, source-of-truth principles, mappings and synchronisation rules.

Build & implement:Translate architectural decisions into practical solutions, configuring HubSpot and developing or supporting integrations where needed.

Collaborate:Work directly with developers, BI engineers, product owners and business stakeholders to align technical solutions with business needs.

Deliver & validate:Support testing, migration and production readiness, ensuring reliable data exchange between systems.

Share knowledge:Document the architecture and ensure a smooth handover to our internal teams.

Our production go-live is planned formid-December 2026, so you’ll be joining at an exciting and important moment.

By the end of the assignment, we aim to have a validated integration architecture, production-ready integrations and clear documentation that our teams can build upon.

Why this project?

Because you’ll have the opportunity to make a real difference.

Rather than maintaining an existing setup, you’ll help shape how HubSpot fits into an evolving technology landscape.

You’ll work with teams who are actively building the new platform, contribute to meaningful architectural decisions and see your work move into production.

We value people who take ownership, challenge assumptions and turn complex problems into practical solutions.

If you enjoy combining strategic thinking with hands‑on delivery, this project offers plenty of opportunities to do both.