Customer Service Assistant jobs in United Kingdom

Client Success Manager, Global SaaS Platform (FinTech)

Remote (UK) | London, Cardiff, or anywhere in the UK
Some travel to client sites across the UK and occasionally Europe (Spain, Germany, Austria)

This is your chance to join one of the UK's most innovative SaaS companies, transforming the global insurance and financial services markets through digitalisation and data‑driven solutions. They’ve recently secured new international contracts and are scaling their customer success function to match the demand, which is where you come in.

You’ll manage one of the company’s key long‑term global clients, ensuring they get maximum value from the SaaS platform. This isn’t a sales or technical support role, it’s all about ownership, relationship‑building, and making sure the client’s investment translates into measurable business results.

• Act as the main point of contact for a major global client.
• Run onboarding, training and workshops to ensure users adopt and understand the platform.
• Monitor engagement and usage, spotting opportunities for improvement or upsell.
• Troubleshoot client issues and coordinate with support and technical teams to resolve them fast.
• Manage client expectations and communicate clearly when delays or technical challenges occur.
• Build a deep understanding of the client’s business model and translate that into how the product can add value.

• Strong background in Customer Success or Account Management, gained within a SaaS or FinTech business.
• Understand software and can confidently discuss topics like APIs, integrations, and data without needing to be an engineer.
• Communicate clearly and empathetically with clients and balance honesty with professionalism when managing expectations.
• Stay calm under pressure and enjoy problem‑solving in a fast‑paced, global environment.
• Bring positive energy, a proactive mindset, and confidence to take ownership of challenges.

• Speak Spanish (ideal but not essential).
• Experience working with enterprise clients across Europe.

• The company is growing rapidly, winning new global accounts, and investing heavily in its customer success capability.
• You’ll join a close‑knit, high‑performing team known for collaboration and mutual support.
• Real autonomy – you’ll have the freedom to build strong client relationships your way.
• You’ll work directly with global brands and have exposure to senior stakeholders.
• There’s genuine career growth here as new accounts and regions open up.