Customer Success Manager

Customer Support

Smartly.io is hiring a Customer Success Manager in London, England. Posted 30 September 2026. Apply directly on Smartly.io's own careers site — no account needed.

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We are looking for an addition to our Customer Success team to be a trusted partner to some of the world’s most ambitious advertisers! As a Customer Success Manager at Smartly, you'll take ownership of our global customers from the first week, give consultative advice, scope and drive long-term success and drive customer satisfaction. You will act as both a strategic and operational partner to Smartly’s global clients, functioning as a crucial link between them, the digital platforms and Smartly. You get the seat in the cutting edge of the fast-paced online marketing industry, which allows you to learn super fast about growing and nurturing your own book of business, managing customer relationships with global clients, and scaling the operations of an ambitious growth company.

What you’ll do:

Own and grow a portfolio of global, enterprise-level customers across platforms including Meta, TikTok, YouTube, and Google (DV360)
Build multi-threaded, trust-based relationships with both operational and executive stakeholders on the client and partner side
Drive adoption of Smartly to improve customer performance, efficiency, and long-term retention
Translate customer goals into clear success plans, platform strategies, and measurable outcomes
Lead strategic customer conversations including QBRs, roadmap discussions, and growth or expansion opportunities
Act as a key connector across Product, Engineering, Client Partners, Creative Services, and Product Marketing to solve customer challenges and influence future product direction
Bring industry insights, platform best practices, and Smartly expertise to every customer interaction
Contribute to internal initiatives that improve customer engagement, scale team operations, or strengthen cross-functional workflows
Mentor peers and share best practices to support the growth of Smartly’s global Customer Success team
Maintain deep, up-to-date knowledge of Smartly’s products and the broader digital marketing ecosystem

We’re looking for someone who:

Has 4+ years of experience in digital marketing, spanning paid social and Google platforms, ideally in SaaS, MarTech, or AdTech
Has successfully managed enterprise-level customers and driven measurable business impact
Brings a strong understanding of the digital advertising ecosystem, including Meta, TikTok, YouTube, Google, and similar platforms
Is comfortable addressing technical challenges and collaborating closely with technical teams when needed
Can translate complex customer objectives into clear, actionable strategies that drive adoption, retention, and growth
Communicates clearly and confidently across all levels, including senior and executive stakeholders
Is a proactive problem-solver with a growth mindset and positive, collaborative attitude
Is able to work in a hybrid model from our London office (3 days per week)
Is willing to travel for customer meetings, conferences, and industry events as required
Is fluent in English; additional languages are a plus

What we offer you:

At Smartly, we offer a place where you can advance your career. Here, you'll find:

An Inclusive Global Culture: Join a team of over 750 Smartlies, representing more than 60 nationalities across 24 locations in 13 countries. We cultivate a culture built on trust, transparency, and open feedback, where diverse perspectives are valued and encouraged.
Global Impact: Contribute to a company making a global impact, directly influencing our customers' success and business growth.
Focus on Wellbeing: We prioritize your health with healthcare packages, mental health services, and a commitment to work-life balance through paid holidays and family leave.
Comprehensive Rewards: Benefit from equity options, performance-based rewards, competitive compensation, and career development opportunities.
Flexible Hybrid Workplace: Experience a hybrid work model, balancing office collaboration with remote work, and the option to work abroad for up to 30 days annually.

Smartly is committed to being a great place for growth-minded individuals to thrive. Explore more in our Culture Handbook!

About Smartly

Smartly is the AI-powered advertising technology company transforming ad experiences for brands and their consumers. Our comprehensive advertising platform seamlessly integrates the capabilities of media, creative, and intelligence to power more than 800 billion impressions and generate more than 300 billion creatives annually, delivering tangible business outcomes for brands and advertisers.

Smartly is the only company in the industry recognized as a Leader in The Forrester Wave: Creative Advertising Technologies with PwC validating the results it delivers for brands. We manage creative and media for 700+ brands worldwide and $6B in ad spend across the largest media platforms, including Facebook, Google, Instagram, Pinterest, Snap, and TikTok. Our end-to-end technology, unmatched access to media platforms and exceptional customer service help Fortune 500 brands to reach and engage consumers and learn what performs best.Smartly is a multinational and diverse team of 750+ Smartlies from 60+ nationalities, working in 13 countries. Together, we want to create and maintain an inclusive environment where everyone feels respected and heard. Our Diversity, Equity & Inclusion approach is at the heart of it.

Visit Smartly to learn more.

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