Growth Marketing Manager

At iwell, we are all about reinforcing energy security. We help European businesses become more energy independent. Because with growing regulations, extreme price volatility and rising grid issues, they just need to be resilient. So it's time to take charge and think ahead.

We deliver energy management solutions that ensure businesses are always in control of their energy. Our in-house developed EMS and modular battery storage drive profit through sustainability, making businesses future-proof.

We’re a fast-growing international team of bold, talented individuals. From engineers and software developers to creative thinkers and customer-focused business developers, we are looking for people who are determined to make a positive impact.

The Role

As iwell’s Growth Marketing Manager you will play a pivotal role in building a data-driven, scalable marketing engine across four European markets. You will own the performance side of our marketing operations and become the internal expert on HubSpot including AI integrations, paid media and conversion optimization.

You will work closely with agencies and our country teams (DE, NL, BE, UK) to accelerate pipeline creation. In this role, you will steer the agency to results and keep the country marketeers sharp to these results as well. You thrive in a scale-up environment that requires experimentation, automation, and rapid iteration.

Success in this role means being able to:

• Build and optimize multi-channel ABM and performance strategies in close collaboration with our core agency and country teams.
• Turn HubSpot into a predictable revenue engine.
• Translate data and insights into actionable next steps with the country marketing teams and agency.
• Drive measurable pipeline impact in collaboration with sales.

This role is ideal for someone with a growth mindset, strong analytical skills, and a passion for marketing & technology.

Key Responsibilities

• Own and optimize iwell’s HubSpot setup, from workflows to reporting and segmentation.
• Build the strategy of our paid media campaigns with our agency across key markets.
• Develop and scale always-on ABM programs with country marketing leads: per segment, ICP, and country.
• Own our data enrichment and scoring to support countries in identifying high-intent accounts and contacts.
• Improve conversion across the entire funnel with the support of our leading agency.
• Collaborate with country teams to understand and align target accounts, track signals, and prioritize outreach in close collaboration with the responsible sales.
• Run structured growth experiments and share insights to drive continuous improvement.
• Build reporting dashboards that track performance, funnel progression, and pipeline contribution.

Requirements

• Minimum of 5 to 8 years of experience in B2B marketing, performance marketing, or growth roles.
• Expert knowledge of HubSpot (must-have).
• Experience with paid media channels (LinkedIn Ads, Google Ads, retargeting) and campaign optimization based on data.
• Tech-savvy and comfortable working with data enrichment tools, AI-driven insights, and automation.
• Excellent written and verbal communication skills in English; Dutch or German is a plus.
• Growth mindset, proactive, and enjoy working in a dynamic, fast-scaling environment.

We care

• Accelerate your career: Get a budget of €1500 a calendar year for personal development and career growth.
• Pension: Attractive pension plan with BrandNewDay.
• Travel reimbursement: We cover your travel costs (bike, car, or public transport).
• Mobile phone allowance: €25 per month.
• 30 days of holiday to rest and recharge, plus a yearly company holiday, plus one volunteer day a year.
• Hybrid role: Balance between our Utrecht office and working from home.