Account Manager (Existing Business)

CostPerform; Utrecht; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

International travel opportunities

ESOP (Virtual equity)

Non-contributory pension

Travel reimbursement

Job summary

CostPerform is seeking an Account Manager (Existing Business) to take ownership of enterprise customers after the sales handover, focusing on long-term relationships and growth in a fast-growing B2B SaaS environment.

You will engage CFOs and finance teams, drive value from the platform, and identify upsell opportunities, balancing relationship ownership with commercial outcomes while collaborating with Sales, Product, Support, and Implementation to ensure strong CRM hygiene.

Qualifications

• Experience in account management or customer success within B2B or complex product environments.
• Proven ability to manage enterprise-level stakeholders and multiple touchpoints.
• Strong communication skills with ability to engage, influence and build trust.
• Commercial awareness with upsell or account growth experience.
• Experience working with CRM systems (HubSpot a strong plus).
• Affinity with finance and data-driven environments.

Responsibilities

• Own a portfolio of enterprise customers after sales handover.
• Build trust-based relationships with senior stakeholders (CFOs and finance leaders).
• Drive regular engagement through check-ins, QBRs, and strategic conversations.
• Identify and drive upsell and expansion opportunities.
• Collaborate with Sales on timing and approach of commercial opportunities.
• Use data and insights from the platform to guide conversations.
• Maintain CRM hygiene and account overview.
• Work with Sales, Product, Support, and Implementation partners.
• Spot risks and opportunities early, and act proactively.
• Provide ongoing value from the platform in daily operations.
• Translate customer needs into concrete actions with internal teams.

Skills

Account management

Customer success

Stakeholder management

CRM systems (HubSpot)

Financial acumen

Tools

HubSpot CRM

Excel

Job description

Own enterprise customers post-sales, drive long-term relationships and expansion, and play a key role in strengthening account management at a fast-growing B2B SaaS company.

The role

CostPerform is looking for an Account Manager (Existing Business) who will take ownership of our enterprise customers after the sales phase and focus on building strong, long-term relationships while driving account growth.

This is not a traditional Customer Success role focused on building processes or frameworks. Instead, this role is centered around relationship ownership, commercial awareness, and customer engagement within a complex, data-driven product environment.

You will work closely with CFO-level stakeholders and finance teams, ensuring they get value from the platform while also identifying opportunities for expansion. An affinity with finance, costing, and data analysis is important — you don’t need to be a specialist, but you should feel comfortable discussing financial performance and insights.

The role suits someone who is commercially sharp, people-oriented, and energized by managing and growing strategic accounts.

CostPerform is a financially stable SaaS company with a long track record. We are entering a next phase where strengthening customer relationships and unlocking growth within our existing customer base is key — without the chaos or pressure of a startup.

What you’ll be doing

Customer ownership & relationship management

Own a portfolio of enterprise customers after sales handover

Build strong, trust-based relationships with senior stakeholders (incl. CFOs and finance leaders)

Act as the primary point of contact for both business and relationship topics

Drive regular engagement through check-ins, QBRs, and strategic conversations

Ensure customers feel supported, challenged, and continuously engaged

Identify and drive upsell and expansion opportunities within existing accounts

Work closely with Sales on timing and approach of commercial opportunities

Balance long-term relationship building with commercial outcomes

Spot risks and opportunities early, and act proactively

Help customers get ongoing value from the platform in their daily operations

Be able to spar with finance stakeholders on topics like cost structures, profitability, and performance

Use data and insights from the platform to guide conversations and uncover opportunities

Run and leverage customer segmentations to prioritise accounts and identify growth potential

Translate customer needs and data insights into concrete actions together with internal teams

Internal collaboration & structure

Work closely with Sales, Product, Support, and Implementation partners

Maintain strong CRM hygiene (HubSpot) and clear account overview

Contribute to improving account management processes and ways of working

Bring energy and proactivity into the team and customer interactions

Job requirements

Who we’re looking for

We’re looking for an Account Manager who thrives in an enterprise environment and enjoys building relationships, managing complexity, and driving growth within existing customers.

You likely bring:

Experience in account management, customer success, or commercial roles within B2B or a complex product environment

Proven ability to manage enterprise-level stakeholders and multiple touchpoints

Strong communication skills — you know how to engage, influence, and build trust

Commercial awareness and experience with upsell or account growth

Experience working with CRM systems (HubSpot is a strong plus)

Affinity with finance and experience in data-driven environments

You are:

Energetic, proactive, and naturally engaging

Comfortable in front of customers — you bring presence and confidence

Relationship-driven, but with a strong commercial mindset

Structured enough to manage accounts well, but pragmatic in execution

Curious and capable of understanding a complex product and domain

Someone who brings positive energy into the team

What we offer

A high-impact role focused on managing and growing enterprise accounts

Ownership of strategic customer relationships with leading enterprise clients

The opportunity to work with large, international organisations and senior stakeholders

International travel opportunities to visit customers and attend events

Direct impact on revenue growth within the existing customer base

Competitive salary with performance-based upside

Virtual equity (ESOP) participation

Non-contributory pension plan and full travel reimbursement

A pragmatic, ambitious, and collaborative culture

About CostPerform

CostPerform is a fast-growing international fintech and B2B SaaS company, trusted by 200+ organisations worldwide to solve complex cost and performance challenges.

Our software supports large, often complex organisations in gaining deep insight into costs, profitability, and financial performance — enabling better decision-making at CFO and enterprise level.

We work across industries including financial services (insurance and banking), telecom, government, and manufacturing, serving both the private and public sectors.

CostPerform operates in environments where standard ERP or BI tooling is not sufficient, and our platform is frequently implemented alongside major enterprise systems through close collaboration with partners and integrators.

Culture at CostPerform

CostPerform’s culture is deeply rooted in the dynamic spirit of a scale‑up environment, fostering continuous growth, innovation, and adaptability. Our four core values guide how we work together and how we collaborate with customers and partners:

Growth: We encourage our team to embrace challenges as opportunities for personal and professional development, contributing to the organisation’s overall advancement.

Quality: We are committed to delivering high-quality products and services, reflected in our attention to detail and pursuit of excellence.

Trust: Trust forms the foundation of our culture, extending from team members to clients and partners, and enabling strong, long‑lasting relationships.

Connection: We value meaningful connections within our team and beyond, recognising that a connected and engaged organisation is more innovative and resilient.