25 May 2026

Customer Success Manager - Ecommerce / Martech
London / Hybrid (2 Days per Week)

Our client is a high-growth technology business working with some of the world's biggest consumer brands and retailers. Backed by over $150 million in funding, they help enterprise clients solve digital engagement and retention challenges through a sophisticated SaaS platform.

They're looking for a strategic Customer Success Manager to manage and grow a portfolio of enterprise accounts, partnering with senior stakeholders to drive performance, retention and long-term value.

This is a great opportunity for someone who enjoys combining client strategy, digital marketing and relationship management within a fast-paced scale-up environment.

Key Responsibilities

• Manage enterprise client relationships from onboarding through to growth and retention
• Partner with senior stakeholders to align strategy with commercial objectives
• Deliver data-led digital engagement and marketing strategies
• Identify opportunities to improve campaign performance and customer value
• Work cross-functionally with Product, Sales, Engineering and Creative teams
• Act as the voice of the customer internally and drive long-term success
• Ensure clients maximise value and ROI from the platform

About You

• 2+ years' experience within Customer Success, Account Management, Client Services or Digital Marketing
• Background within Ecommerce, MarTech, SaaS or a Marketing Agency environment
• Strong commercial awareness and analytical mindset
• Confident managing senior stakeholders and building long-term relationships
• Organised, proactive and comfortable in a fast-moving environment
• Strong communication and relationship-building skills
• Passionate about digital marketing, technology and customer engagement

Why Apply?

• Work with globally recognised retail and consumer brands
• Join a high-growth business with strong progression opportunities
• High level of ownership and visibility from day one
• Collaborative, high-performance culture
• Flexible hybrid working environment

Sphere Digital Recruitment currently have a variety of job opportunities across digital so feel free to get in touch with us to find out how we can help you. Please take a look at our website.

Sphere is an equal opportunities employer. We encourage applications regardless of ethnic origin, race, religious beliefs, age, disability, gender or sexual orientation, and any other protected status as required by applicable law.

If you require any adjustments or additional support during the recruitment process for any reason whatsoever, please let us know.