Head of Client Strategy and Growth

Job Description

Our Story

Founded in 2016, Overdose. has grown to a family of 250+ staff, with offices across New Zealand, Australia, South East Asia, Europe and the USA. We work in a partnership format with a select group of clients looking for innovation and accelerated growth in a competitive digital landscape.

Overdose. connects unique local talent, entrepreneurial thinking, and global expertise to help merchants grow through aligned digital services for sustained business success.

We call this Complete Commerce.

We prioritise creating a safe and supportive space where our team members can foster value-based relationships with our clients and partners. This environment forms the foundation of our collaborative efforts, propelling us to think bigger and challenge the status quo.

Overdose is an AI-first digital commerce agency, leveraging artificial intelligence to enhance decision-making, streamline delivery, and drive measurable growth for our clients. From marketing automation to predictive analytics, AI underpins how we design, deliver, and optimise client solutions.

About the Role

We are looking for a high-impact Head of Client Strategy to join our Auckland-based lead team. Reporting to the Managing Director, you will play a pivotal role in strengthening client partnerships, leading cross-functional teams and driving revenue growth. This is the perfect next step for a confident team leader eager to take ownership of strategic growth initiatives and shape how our cross‑functional teams deliver measurable results.

You'll oversee the Client Success, Project Management and Digital Marketing teams, a total of six experts, ensuring their work delivers measurable client impact and commercial value for the business through data-led, AI-driven strategy and insight.

This is a team lead position for a professional who acts as both a client and team advocate, connecting client needs with world-class delivery. You will lead client workshops, shape engagement strategies and collaborate with the Managing Director on long-term strategic initiatives. You'll also work closely with our SEO, Data and Design leads to ensure collaboration across all disciplines. The role demands a blend of commercial acumen, strategic vision and confident leadership focused on building deep relationships that create sustained, mutual growth.

Job Requirements

• Proven experiences working in Agency Environments with a minimum of 3 years.
• Strong, proven background in retail, eCommerce, and/or digital, with a minimum of 2+ years in a leadership role managing multiple team members.
• Demonstrated expertise in client relationship management and building deep, lasting partnerships.
• General understanding of operational budgets.
• Exceptional strategic thinking with a proactive mindset and natural curiosity for exploring new opportunities.
• Ability to work autonomously and collaboratively, thrive in a fast-paced, dynamic environment and maintain calm leadership under pressure.
• Excellent written and verbal communication skills for effective interaction with clients and internal stakeholders.

Job Responsibilities

Strategic Leadership & Growth

• Champion innovation by exploring new eCommerce opportunities, piloting new tools, and driving the integration of AI-driven solutions across client strategies and internal processes.
• Contribute to revenue growth by developing and executing effective sales strategies alongside the Managing Director.
• Ensure your teams' work results in measurable business outcomes for our clients.

Client Partnership & Commercial Management

• Act as a trusted advisor to key clients, translating their commercial goals into cohesive strategies and managing all client relationships across the region.
• Develop and oversee the execution of comprehensive client business plans by your teams, monitoring progress and ensuring adherence.
• Monitor team performance to ensure the alignment of client budget and value delivered, balancing client outcomes with agency profitability.

Team Development

• Provide supportive, coaching leadership and mentorship to the Client Success & Strategy, Project Management, and Digital Marketing teams to guide professional development and strategic client support.
• Actively participate in recruitment, onboarding, and training, and foster a culture of high attention to detail and quality assurance.

Job Benefits

• Hybrid working arrangements.
• Two Wellness Days days off per year.
• Free day off to celebrate your birthday month.
• Annual training allowance.
• The chance to learn from some of the best eCom leaders all around the world.
• Ability to continue your learning and development through globally recognised courses.
• OD Parental Leave policy & support.
• Great humans to work alongside everyday.