Experienced Full Stack Customer Success Manager – Enterprise Account Management and Strategic Growth

At blithequark, we're revolutionizing the HR tech landscape with innovative software that empowers in-house recruitment teams to attract, hire, and onboard the right talent. As a high-growth, dynamic start-up, we're seeking an exceptional Customer Success Manager to join our UK-based team. This is a high-impact, hands-on role where you'll own a book of business worth ~£1.5–2M, balancing proactive, tech-driven engagement with in-person relationship building when it counts.

About blithequark

blithequark is a leading HR tech start-up that's changing the way companies approach recruitment and talent management. Our mature product, strong product-market fit, and happy customers have established a solid foundation for growth. With a strong focus on innovation and customer satisfaction, we're committed to delivering exceptional results and building long-lasting relationships with our clients.

The Role

As our ideal candidate, you'll be responsible for driving commercial outcomes across your portfolio, managing stakeholder relationships, and partnering with clients to define success metrics and create tailored success plans. You'll also lead upsell/expansion conversations, act as the voice of the customer internally, and track and analyze customer health metrics to reduce risk and maximize growth.

Key Responsibilities:

* Own commercial outcomes across your portfolio, driving Net Revenue Retention (NRR) by retaining customers, mitigating risk, and proactively leading upsell and expansion opportunities

• Build and manage stakeholder relationships across accounts, ensuring high sentiment and advocacy that support renewal and growth
• Partner with clients to define success metrics and create tailored success plans aligned with their business goals
• Confidently lead upsell/expansion conversations, shaping opportunities, and building business cases to close incremental revenue
• Act as the voice of the customer internally, providing insights and feedback to Sales, Product, Engineering, and Support
• Track and analyze customer health metrics, turning insights into action to reduce risk and maximize growth
• Balance strategic planning with day-to-day problem-solving, staying close to customer challenges and opportunities

Tech Stack:

* Google Workplace

• Notion
• Slack
• Zoom
• Hubspot
• Intercom
• Linear
• Guru

About You:

* 3+ years in Customer Success with a proven track record of driving renewals, upsell, and expansion in B2B SaaS (ideally managing a >£1M portfolio)

• Strong preference for experience in an early-stage startup or high-growth SaaS environment
• Commercially sharp – comfortable building business cases, and shaping opportunities
• Entrepreneurial mindset – proactive, creative, and comfortable in a fast-changing startup environment
• High ownership – you run your portfolio like it's your own business and bring forward ideas, not just problems
• Calm under pressure and skilled at juggling multiple accounts at different lifecycle stages
• Data-driven – you analyze customer health metrics, spot trends, and turn insights into strategy
• Background in HR tech / recruiting tech OR direct recruiting experience (agency or in-house) is a plus
• Based in the UK with work authorization and the ability to travel up to 20% of the time for on-site client visits

What We Offer:

At blithequark, we're committed to creating a work environment that's supportive, inclusive, and exciting. Here's what you can expect:

Gold-plated healthcare

– The best medical, dental, and optical coverage money can buy. We've got you (and your family) covered

Unlimited holidays

– Work-life balance matters. Take the time you need to rest, recharge, and enjoy life

Mental health support

– Unlimited, immediate access to professional counseling through Spill—because your well-being comes first

Retirement matching

– A competitive plan to help you hit your long-term financial goals

Remote-first culture

– Work where you're most productive. As a remote-first team, we prioritize flexibility and trust

Meaningful equity

– You're helping build something special, and you should share in its success

Generous parental leave

– Up to 16 weeks of fully paid leave to support new parents

Learning budget

– Annual funds for courses, books, or anything else that fuels your personal and professional growth

Top-of-the-line equipment

– MacBook Pro, 4K monitors, and all the right tools to do your best work

A team that's got your back

– Smart, driven, kind people who want you to succeed, our clients to be wowed, and our business to grow

How to Apply:

If you're a motivated, results-driven professional with a passion for customer success, we'd love to hear from you. Please submit your application through our website, and let's start a conversation about how you can join our dynamic team at blithequark. Apply for this job