Head of Customer Success

About the role

Callstack is looking for an experienced Head of Customer Success to lead and scale a portfolio worth 150‑200 M PLN in annual revenue. Based in Wrocław, you will act as the primary bridge between top‑tier clients and the company’s technical teams, ensuring that business value and innovation are tightly aligned.

Key responsibilities

• Own full revenue target for the portfolio and drive year‑over‑year growth.
• Lead a team of 3‑5 Account Managers, setting strategy and coaching performance.
• Develop and execute mid‑ and long‑term account plans, including stakeholder mapping and expansion into new client divisions.
• Manage pricing strategy, contract negotiations and complex commercial deal structuring.
• Maintain executive‑level relationships with key accounts, conducting regular 1:1s and onsite visits.
• Collaborate with Head of Engineering to translate technical capabilities into business value propositions.

Required profile

• Proven experience in senior customer success or account management roles, preferably with P&L responsibility.
• Strong track record of achieving revenue growth through upselling, cross‑selling and account expansion.
• Excellent communication and negotiation skills with senior stakeholders.
• Leadership experience managing small to medium sized teams.

Required skills

• React Native

What we offer

• Opportunity to work with Silicon Valley and Fortune 500 clients.
• Individual self‑development budget and clear career growth paths.
• Collaborative culture that encourages ideas and innovation.
• Competitive compensation and benefits package.