Senior Growth Systems Engineer

Build the activation layer behind our growth stack

Do you enjoy working in an environment where data, technology, and growth come together? Do you like turning data into audiences, reliable activation flows, and solutions that teams can actually use?

At HeadFirst x Impellam, we are building a new Growth Tech function within our Product organization. We are looking for a Senior Growth Systems Engineer to take ownership of the activation layer that underpins our growth strategy across our marketplaces and more than 20 brands.

This is a technical role with strong ties to the business. You will work closely with Product, Data Engineering, Commercial, and Marketing to turn data into action. As our first dedicated activation hire, you will also have plenty of room to shape how this capability evolves.

What you will do

You will be responsible for the systems and processes that transform our data into actionable audiences and reliable activation.

Your day-to-day work will include:

• Building and managing audience activation flows from Databricks to Hightouch and connected platforms.

• Translating business needs into audience logic, traits, and synchronization structures.

• Using SQL to analyze data and resolve issues related to audiences and activation flows.

• Improving identity resolution and profile stitching across Striive, ProUnity, and our broader brand portfolio.

• Helping to define event taxonomy and consent workflows from the CMP through the warehouse to activation.

• Reviewing AI-generated audiences, campaign inputs, and reporting outputs before they go into production.

• Monitoring activation quality and resolving issues when things do not work as expected.

• Working closely with the Product, Data, Commercial, and Marketing teams to turn ideas into practical solutions.

• Creating reusable standards and solutions that can be applied across markets and brands.

The technology

Our growth stack is built around a modern data and activation infrastructure. Databricks is at the heart of our data platform, with Hightouch supporting warehouse-to-channel activation.

You will work with technologies and concepts such as:

Databricks | Hightouch | SQL | Reverse ETL | CDP | Identity Resolution | Consent | Event Data | AI-assisted workflows

You don't need to be an expert in every tool. We're more interested in your ability to understand systems, solve problems, and learn quickly.

A little more about the role

This is not a campaign management or traditional marketing automation role. You won't be spending your days managing HubSpot or Marketo.

Your focus is on the technical infrastructure that drives growth. You ensure that our data can be transferred from the data warehouse to the right systems, that audiences can be reliably targeted, and that our teams can work more efficiently.

You’ll also be joining at an exciting time. Growth Tech is being built from the ground up, and you’ll be the first person hired specifically for activation. That means you’ll have real ownership and a direct influence on how we build this capability across HeadFirst x Impellam.

What we offer

• €85,000 to €115,000 gross annual salary, depending on experience.

• 15% performance bonus.

• Full-time permanent contract.

• 27 vacation days, with the option to purchase additional days.

• 8.33% vacation pay and a tax-free pension.

• Hybrid work and flexible hours.

• Modern office in Hoofddorp.

• Access to HeadFirst Academy and internal learning opportunities.

• The opportunity to build a new activation capability from the ground up.