Senior Client Strategist

Helion B2B; København; On-site; DKK 900,000 - 1,150,000; Full time

Job summary

Helion B2B, a B2B agency with a person-to-person mindset, seeks a Senior Client Strategist to own a client portfolio. You will guide growth strategy, oversee HubSpot and content initiatives, and drive high-impact outcomes across marketing disciplines.

You will be the primary contact for clients, coordinating strategy workshops and ensuring alignment between sales and marketing while mentoring peers and shaping service delivery.

Qualifications

• 7+ years in B2B marketing, growth strategy and project management.
• Fluency in Danish and English (written and spoken).
• HubSpot expertise, preferably certifications.
• Strong commercial acumen with content production and performance marketing experience.
• Natural relationship builder who can advise and challenge stakeholders.

Responsibilities

• Lead end-to-end growth strategy initiatives for client portfolios, including ABM, websites, buyer journeys, and tech implementation.
• Act as day-to-day project manager coordinating HubSpot/tech implementations with paid media and content.
• Partner with sales to lead meetings, craft audits, and identify upsell opportunities.
• Mentor colleagues and stay ahead on B2B trends to inspire clients.
• Contribute to optimizing Helion B2B's core service offerings and delivery frameworks.

Skills

Growth strategy

Content creation

HubSpot

Performance marketing

Stakeholder management

Danish & English

Tools

HubSpot Certifications

Job description

Are you ready to take ownership of your own client portfolio, drive strategic B2B growth, and deliver high-impact results?

At Helion B2B, we are a business-to-business agency with a person-to-person mindset. We engage with our clients’ businesses as if they were our own—their headaches are our challenges, and their ambitions are our objectives. As our new Senior Client Strategist, you will become a trusted advisor to key stakeholders, guiding them from initial growth strategy to high-quality execution.

The role at a glance

You will be the primary point of contact for a dedicated portfolio of clients. They will rely on you to challenge their thinking, understand their business, and deliver high-impact results across Growth Strategy, Content, HubSpot, and Performance Marketing.

Your Core Responsibilities

• Growth strategy initiatives: Lead end-to-end strategy processes and workshops (from scoping to final presentation). You'll map out ABM, websites, buyer journeys, tech implementation, and secure total alignment between your clients' sales and marketing teams.
• Client management and execution: Act as the day-to-day project manager for complex clients and key stakeholders. You will coordinate HubSpot/tech implementations with paid media and content efforts to ensure seamless execution.
• Commercial growth and sales: Partner with colleagues in the sales process—leading solution meetings, crafting bespoke pitch materials (audits), and identifying organic upselling opportunities within your portfolio.
• Thought leadership and mentorship: Stay ahead of B2B trends to inspire our clients. Internally, you will coach and mentor colleagues within your core areas of expertise.
• Product development: Contribute to optimizing and scaling Helion’s core service offerings and delivery frameworks.

What We Are Looking For

• 7+ years of experience in B2B marketing, growth strategy, and project management (experience with SaaS companies is a major plus).
• Full professional fluency in both Danish and English (written and spoken).
• Expert-level HubSpot knowledge, ideally backed by relevant certifications.
• Strong commercial acumen with experience supervising content production and performance marketing.
• A natural relationship builder who is comfortable advising and challenging stakeholders.
• Proximity to Copenhagen, with the desire to be physically present at our vibrant office in Østerbro.

Why Join Helion B2B?

We are a fast-growing partner for strategic lead generation, offering you a unique opportunity to see your ideas move from strategy to execution. You will join a young, ambitious, and deeply curious team that loves what they do. We highly value our social culture and always make sure to celebrate our successes together.

Ready to Root for Our Clients With Us?

If you have any questions about the position, feel free to reach out to Simon Skibsted, Head of Client Strategy, at [phone].