Job Description

As a Client Growth Manager, you will be the first point of contact for an assigned book of clients, responsible for nurturing long-term relationships and driving revenue growth through performance marketing. Your focus will be to retain clients, secure consistently renewed budgets, and expand business across mobile user acquisition, retargeting, and Connected TV (CTV) campaigns.
You'll collaborate closely with Sales and Ad Operations teams to ensure performance aligns with client objectives, while proactively identifying growth opportunities, delivering strategic insights, and becoming a trusted advisor to your clients.
This is a hybrid role combining office and home working, and candidates must be able to work in either Singapore or Manila. We have offices in both cities, and a minimum of two days' office-based work is required. Candidates must be legally authorised to work in Singapore or Manila (no visa sponsorship provided). Some travel will be required for client visits and industry events.
Key Responsibilities
Portfolio Growth & Management

• Lead, manage, and grow a portfolio of direct advertisers and agencies across a diverse set of verticals.
• Monitor, analyze, and optimize client campaigns with AdOps support to meet performance and ROI goals.
• Identify, recommend, and drive upsell/cross-sell opportunities across Smadex's solutions (UA, retargeting, CTV).

Client Relationship Building

• Serve as a proactive partner: anticipate client needs, resolve pain points, and establish long-standing trust.
• Lead regular client calls (weekly/bi-weekly) to review campaign performance and explore new opportunities.
• Deliver Quarterly Business Reviews (QBRs) to showcase results, growth potential, and strategic recommendations.
• Produce campaign wrap-ups and post-mortems for clients who pause or churn, with clear next-step strategies.

Commercial Responsibilities

• Negotiate billing confirmations and resolve disputes on a monthly basis.
• Actively participate in revenue forecasting and reporting.
• Maintain senior relationships within client organizations, particularly in SEA's largest app-focused companies.

Collaboration & Representation

• Work cross-functionally with global support teams (Barcelona HQ and other international offices).
• Represent Smadex at regional industry events, client visits, and networking opportunities.

Skills & Requirements

• 5 years of professional experience in clients handling with at least 2 years in performance mobile marketing and programmatic space.
• Prior DSP or programmatic advertising experience is required.
• Strong familiarity with the mobile app ecosystem, including UA, retargeting, agency landscapes, and suppliers.

Technical Competence

• Solid understanding of ad tech concepts: MMPs, tracking links, postbacks, APIs, SDK integration, SKAN/ATT, DSPs, SSPs/Exchanges.
• Ability to solve first-degree technical issues and collaborate effectively with AdOps/tech teams.
• Proficiency in Excel (analysis and reporting).

Communication & Leadership

• Excellent verbal and written English communication skills; Bahasa or Mandarin fluency is a strong plus.
• Persuasive negotiation skills and ability to present compelling insights to senior stakeholders.
• Professional presence with the confidence to build relationships at senior levels in client organizations.

Mindset & Traits

• Growth-oriented, proactive, and self-motivated with strong business acumen.
• Disciplined and highly organized, capable of managing multiple tasks simultaneously.
• Able to work in a fast paced environment.
• Comfortable working with global, remote teams and flexible across time zones.
• Valid passport and willingness to travel for business.

Primary Tools

• Google Suite, Excel, Slack, Gmail, Notion, Salesforce, Smadex DSP.

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