Senior Sales Manager, Japan

What You'll Be Doing

• Identify, prospect, and close new programmatic advertising opportunities with agencies, brands, and strategic partners across Japan.
• Build and execute the commercial strategy for Japan, creating sustainable pipeline and consistently converting opportunities into revenue.
• Develop and grow strategic commercial partnerships that expand StackAdapt's reach, create new routes to market, and accelerate long-term revenue growth.
• Identify new market opportunities through agency partnerships, strategic alliances, and evolving customer needs.
• Manage and grow strategic client relationships by identifying opportunities to expand partnerships and increase long-term customer value.
• Partner closely with Client Success to deliver exceptional customer outcomes while identifying opportunities for continued account growth.
• Work cross-functionally with Sales Leadership, Product, Client Success, Marketing, and Operations to share market insights, influence regional strategy, and support commercial growth initiatives.
• Build and maintain trusted relationships with agencies, brands, commercial partners, and key industry stakeholders across Japan.
• Develop a deep understanding of local market dynamics, competitive activity, customer behaviour, and industry trends to uncover new revenue opportunities.
• Maintain accurate pipeline management, forecasting, and opportunity tracking through CRM while consistently exceeding revenue targets.
• Represent StackAdapt at client meetings, industry events, and networking opportunities to strengthen brand presence and expand market relationships.
• Travel regularly throughout Japan to support client engagement, partnership development, and commercial growth.

What You'll Bring to the Table

• 8+ years of experience in digital advertising, AdTech, or programmatic advertising sales, with a proven track record of exceeding new business targets.
• Experience selling digital advertising solutions to agencies and/or brands in Japan, with deep knowledge of the Japanese advertising ecosystem.
• Demonstrated success building pipeline from scratch, winning net-new business, and consistently delivering revenue growth in quota-carrying sales roles.
• Proven experience developing new markets, launching commercial initiatives, or driving growth within established or emerging territories.
• Experience building strategic commercial partnerships, agency alliances, or other routes to market that accelerate customer acquisition and long-term revenue growth.
• Strong commercial acumen with the ability to identify market opportunities, prioritise effectively, and execute independently in fast-paced growth environments.
• Experience selling a Demand-Side Platform (DSP), programmatic platform, or other AdTech solution is highly desirable.
• Existing relationships with agencies, brands, or strategic partners across Japan are highly valued.
• Experience working across Japan or wider APAC markets is preferred.
• Strong consultative selling skills with the ability to engage senior stakeholders, uncover business challenges, and position solutions that deliver measurable outcomes.
• Experience using CRM platforms to manage pipeline, forecast accurately, and maintain high standards of sales discipline.
• Excellent relationship-building and stakeholder management skills, with the ability to influence cross-functional teams and build credibility quickly in new markets.
• Comfortable operating with a high degree of autonomy while collaborating effectively across regional and global teams.
• Fluency in both Japanese and English is required.

Benefits & Perks

• Base Salary Band ¥13,456,800 — ¥18,503,100 JPY
• StackAdapter's Enjoy: Highly competitive salary
• Retirement/ 401K/ Pension Savings globally
• Competitive Paid time off packages including birthday's off
• Access to a comprehensive mental health care program
• Health benefits from day one of employment
• Work from home reimbursements
• Optional global WeWork membership for those who want a change from their home office
• Hubs in London and Toronto
• Robust training and onboarding program
• Coverage and support of personal development initiatives (conferences, courses, books etc)
• Access to StackAdapt programmatic courses and certifications to support continuous learning
• Amazing parental leave program
• A friendly, welcoming, and supportive culture
• Social and team events