Client Service Delivery Senior officer

The Apex Group was established in Bermuda in 2003 and is now one of the world’s largest fund administration and middle office solutions providers.

Our business is unique in its ability to reach globally, service locally and provide cross\-jurisdictional services. With our clients at the heart of everything we do, our hard\-working team has successfully delivered on an unprecedented growth and transformation journey, and we are now represented by over circa 13,000 employees across 112 offices worldwide.Your career with us should reflect your energy and passion.

That’s why, at Apex Group, we will do more than simply ‘empower’ you. We will work to supercharge your unique skills and experience.

Take the lead and we’ll give you the support you need to be at the top of your game. And we offer you the freedom to be a positive disrupter and turn big ideas into bold, industry\-changing realities.

For our business, for clients, and for you

We are currently seeking a Client Service Delivery Senior to join our expanding Fund Administration team in Luxembourg. This is a permanent opportunity offering a competitive salary and benefits package, along with the chance to take on increased ownership, client exposure, and team oversight.

Your Role

In this role, you will combine technical expertise, client relationship management, and team leadership, ensuring high\-quality service delivery across a diverse portfolio of fund clients.

Key responsibilities include:

• Leading the review and oversight of Net Asset Value (NAV) calculations for a range of open\-ended fund structures, ensuring accuracy and compliance with internal procedures and client requirements


• Acting as the primary point of contact for key clients, taking full ownership of service delivery and building strong, trusted relationships


• Managing and coordinating the production of accounting deliverables for SIFs, SICARs, UCITS and RAIFs under LUX GAAP


• Providing guidance and technical support to team members, including reviewing work and supporting their development


• Ensuring timely resolution of client queries by proactively identifying issues and implementing solutions


• Overseeing additional operational processes such as invoicing, payments, and controls


• Contributing to and reviewing KPIs, internal reporting, and client reporting deliverables


• Supporting process improvements and driving efficiencies within the team

Your Profile

• Minimum 4–6 years’ experience in Fund Administration in Luxembourg (PFS, accounting firms, or Big 4 environments preferred)


• Proven experience in client relationship management and service delivery oversight


• Demonstrated ability to mentor and supervise junior team members


• Strong knowledge of Luxembourg fund structures and regulatory environment


• Excellent organisational and prioritisation skills, with the ability to perform in a deadline\-driven environment


• Strong analytical mindset with clear and confident communication skills


• Experience with Paxus and/or Xentis is considered an advantage


• Fluency in English and German is required; additional languages are a plus

Why Join Us

• Opportunity to take on greater ownership and leadership responsibilities


• Exposure to a broad and international client base


• Collaborative and supportive working environment


• Competitive salary and benefits aligned with market standards in Luxembourg

Additional Information

Please note that a background check will be conducted as part of the hiring process. In accordance with Luxembourg regulations, candidates may be required to provide a recent extract from their criminal record.

Disclaimer: Unsolicited CVs sent to Apex (Talent Acquisition Team or Hiring Managers) by recruitment agencies will not be accepted for this position. Apex operates a direct sourcing model and where agency assistance is required, the Talent Acquisition team will engage directly with our exclusive recruitment partners.

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