Head of Account Management & Customer Success
Vilnius / Kaunas
Sales & Marketing – Sales /
Full Time /
Hybrid
At nexos.ai, we help companies move beyond AI hype to real-world usage. Our platform is built for enterprises that want to adopt AI securely, responsibly, and at scale - and we guide them every step of the way.
We’re looking for a Head of Account Management & Customer Success to build and lead the team that will ensure customers don’t just buy AI - they actually use it, expand it, and succeed with it. This is a critical leadership role for someone who’s ready to roll up their sleeves, build the function from the ground up, and scale it across markets.
Why this role matters
Most companies are still trying to figure out how to use AI. They don’t need more tools — they need guidance, structure, and real partnership. That’s exactly what this role delivers. As the Head of Account Management & Customer Success, you’ll help enterprises go from AI experimentation to AI excellence — and build the team that makes it happen.
Main Responsabilities
- Be the first to lead and shape our Account Management and Customer Success function
- Take a hands-on role in managing key enterprise accounts during the early stages
- Build and scale a high-performing team that helps companies adopt and grow with AI
- Define the vision, structure, and operating model for how we support and expand our customer base
- Hire, train, coach, and lead the team - creating a strong, AI-literate customer-facing organization
- Develop customer playbooks that guide clients through the AI adoption lifecycle
- Partner closely with Sales, Marketing, and Product to align on strategy and execution
- Analyze customer data and AI adoption trends to uncover expansion, upsell, and cross-sell opportunities
- Serve as a strategic voice to the customer, helping them unlock meaningful AI use cases
- Travel occasionally to meet enterprise clients in Europe, the US, and beyond
Core Requirements
- 4+ years of experience leading B2B account management or customer success teams, preferably in SaaS or AI-related sectors
- Proven track record working with international clients - US and EU experience preferred
- Strong leadership and change management capabilities in a fast-moving environment
- Passion for AI - you understand its impact on the future of work and want to be at the center of it
- Excellent communication and influencing skills with both technical and business stakeholders
- Data-driven and outcome-oriented - you’re comfortable owning performance and retention metrics
- Experience with CRM tools like Salesforce and other customer success platforms
- Ability to work strategically while staying close to day-to-day execution
Bonus Points For
- Knowledge of AI fundamentals, use cases, or experience with AI-driven platforms
- Experience designing scalable post-sales journeys for enterprise clients
- Background in customer onboarding, enterprise renewals, or solution expansion
Salary and Benefits
- EUR 4500–6100 gross/month + performance-based bonus
- Dedicated learning budget for AI and leadership development
- Opportunity to build a critical function in one of Europe’s most promising AI startups
- High ownership, fast execution, real product influence
