Customer Success Manager

Quantium; Greater London; On-site; GBP 60,000 - 90,000; Full time

Job summary

Quantium, a global investment-management platform, seeks an experienced Customer Success Manager to own a portfolio of clients and ensure they realise maximum value from the platform. You will work closely with senior client teams and cross-functional groups to drive adoption, deliver initiatives, and expand the partnership across regions.

This client-facing role requires strong stakeholder management, superb communication, and the ability to operate across Sales, Product, Engineering and

Qualifications

• Minimum 5 years in Customer Success or similar client-facing roles.
• Proven experience managing enterprise or institutional clients.
• Strong communication and presentation skills, written and verbal.

Responsibilities

• Own a portfolio of strategic clients as the primary relationship owner.
• Drive client success, adoption and value realization through guidance on platform use.
• Proactively manage client relationships with regular reviews and strategic discussions.
• Identify and mitigate client risks and address concerns to prevent churn.
• Coordinate with internal product, engineering and sales teams to resolve issues.
• Flag cross-sell, upsell and expansion opportunities to the Sales team.

Skills

Client relationship management

Enterprise SaaS

Stakeholder management

Communication skills

Account management

Job description

Quantium is an all-in-one investment management software designed specifically for modern private market managers. Our easy-to-use platform streamlines investment administration, performance analytics, data aggregation and investor reporting. We serve some of the most prominent private asset managers across the world with over USD 100 billion client assets under our platform. Quantium is scaling our products and reach to delight more customers and is looking to add talented members across engineering, business development and client support teams.

JOB BRIEF

As we continue to grow globally, we are looking for an experienced Customer Success Manager to build strong, long-term relationships with our clients and ensure they achieve maximum value from Quantium. As a Customer Success Manager, you will be the primary relationship owner for a portfolio of Quantium clients. You will work closely with clients to understand their business needs, current usage of the platform, drive further adoption, ensure successful delivery of new initiatives, and identify opportunities to expand the relationship.

This is a highly client-facing role requiring strong knowledge of client operations, business judgment, stakeholder management skills and the ability to work effectively with both senior client teams and technical/product teams.

You will work closely with our P roduct client analytic and support , Product, Engineering and Sales teams to ensure clients receive a consistently high level of service and derive measurable value from Quantium.

If you are passionate about the private markets & financial technology, and are result-driven & motivated to make a difference, take a bold step toward Quantium. We’d like to speak to you.

KEY RESPONSIBILITIES AND ACCOUNTABILITIES

• Own a portfolio of strategic clients as the primary relationship owner, building trusted relationships with senior stakeholders and understanding their business objectives, operating models and use cases.
• Drive client success, adoption and value realization by advising clients on the most effective use of Quantium, increasing adoption of relevant capabilities, and identifying opportunities to improve their workflows, processes and outcomes.
• Proactively manage client relationships through structured outreach, regular business reviews and strategic discussions, with a focus on client satisfaction, retention and long-term value.
• Identify and mitigate client risks by monitoring engagement, usage and feedback, addressing concerns early, and taking action to prevent escalation and churn.
• Own client escalations and coordinate with internal teams to ensure issues are resolved effectively and within agreed timelines.
• Identify commercial opportunities based on client needs and usage, and proactively flag cross-sell, upsell and expansion opportunities to the Sales team.
• Maintain clear account plans and health assessments covering client priorities, adoption, risks, commercial status and growth opportunities.
• Oversee the product client analytic and support team to ensure consistent, professional, appropriate and timely client communications, acting as the escalation point where required.

REQUIREMENTS AND QUALIFICATIONS

• Minimum 5 years of experience in Customer Success, Account Management, Client Services, Consulting, SaaS or a similar client-facing role.
• Proven experience managing relationships with enterprise or institutional clients.
• Strong stakeholder management skills, with the confidence to engage with senior executives.
• Excellent communication and presentation skills, both written and verbal.
• Strong commercial awareness and ability to identify client needs and business opportunities.
• Strong problem-solving skills and a proactive, ownership-oriented mindset.
• Ability to work effectively across Sales, Product, Engineering and Operations teams.
• Comfortable working in a fast-paced, international and growing organization.

Preferred

• Experience working with financial services, asset management, private equity, private credit, venture capital or fund administration .
• Experience with enterprise SaaS or financial technology platforms.
• Understanding of fund operations, fund accounting, investor reporting or portfolio management.
• Experience working with clients across multiple countries and regions t alent practical experience.