Founding Client Partner

MAI; Greater London; On-site; GBP 75,000 - 90,000; Full time

Job summary

MAI in London is looking for a high‑impact Client Partner to drive growth for our AI‑powered AdTech platform. You’ll own the end‑to‑end sales cycle, prospect strategically, and close customers while shaping our GTM strategy.

You’ll become a domain expert in performance marketing and AI agents, advising marketers on growth, profitability, and how to scale with our product. This is a senior, high‑visibility role with equity and fast career progression.

Qualifications

• 4-8 years of full-cycle sales experience, with a proven record of exceeding quota.
• Experience selling Ads, AdTech, or Marketing SaaS to enterprise, mid-market or growth-stage performance marketers.
• Experience or high adaptability to early-stage product sales, helping build initial go-to-market playbooks and partner with operations and marketing to enable process.
• Deep understanding of sales principles and frameworks, plus the ability to adapt and iterate them in a fast-moving environment.
• Analytical and data-driven mindset, using metrics to inform strategy and drive decision-making.
• Strong problem-solving, prioritization, and communication skills; thrives under pressure and deadlines.
• A team player with leadership potential—capable of mentoring others as the team scales.

Responsibilities

• Own the full sales cycle – from prospecting to close and expansion.
• Become a domain expert in performance marketing and AI agents. Through product training, you’ll understand how AI optimizes campaigns, budgets, and ROAS.
• Act as a trusted advisor to marketers, guiding growth and profitability as they leverage AI.
• Collaborate cross-functionally with product, ops, and marketing to share feedback and influence roadmap priorities.
• Maintain CRM excellence, documenting learnings and performance data.

Skills

Full-cycle sales

Ads/AdTech/Marketing SaaS

Enterprise/mid-market

Go-to-market

Analytical mindset

Communication

Leadership potential

Job description

About Us

At MAI (pronounced “my”), we're on a mission to democratize advanced advertising technology. We believe that cutting-edge marketing tools, once exclusive to large enterprises with massive budgets, should be accessible to everyone. Our platform uses AI agents to automate and optimize performance marketing, empowering small and mid‑sized businesses to scale their ad spend profitably without the need for an agency or endless hours of manual campaign management.

Founded by ad platform veterans from Google and Instacart, we've successfully raised a $25 million Seed funding round led by Kleiner Perkins to accelerate our growth. This capital will be used to expand our teams, bringing our vision of intelligent, autonomous marketing to life. Our AI agents have already proven their value, helping clients drive meaningful lift in sales and return on ad spend, and managing hundreds of millions in monthly ads spend across Google, Microsoft, and Meta.

Why Join Now

Building the infrastructure for intelligent AI agents is uncharted territory—and we’re writing the playbook. As a Client Partner at MAI, you’ll be part of our go‑to‑market team, helping shape how we engage and scale with eCommerce brands. You’ll prospect, pitch, and close customers, while directly influencing our GTM motion, tooling, and product roadmap through your customer insights. This is a rare opportunity to join an AI‑native company at an inflection point—where each deal you close shapes the trajectory of our business.

What You’ll Do

• Own the full sales cycle – from prospecting to close and expansion. You’ll generate 75%+ of your pipeline through strategic outbound and identifying intent signals to position MAI as the growth multiplier for eCommerce brands.

• Become a domain expert in performance marketing and AI agents. Through MAI’s product training and direct client engagement, you’ll deeply understand how AI optimizes campaigns, budgets, and ROAS for customers.

• Act as a trusted advisor to marketers, understanding how they think about growth and profitability, and guiding them through the transformation as they leverage AI to expand capabilities and free up resources to tackle other strategic objectives.

• Collaborate cross‑functionally with product, ops, and marketing to share customer feedback, influence roadmap priorities, and co‑develop scalable GTM processes.

• Maintain CRM excellence, documenting learnings, activities, and performance data to continuously improve targeting and efficiency.

What You’ll Bring

• 4-8 years of full‑cycle sales experience, with a proven record of exceeding quota.

• Experience selling Ads, AdTech, or Marketing SaaS to enterprise, mid‑market or and/or growth‑stage performance marketers.

• Experience or high adaptability to early‑stage product sales, helping build initial go‑to‑market playbooks and partner with operations and marketing to enable process.

• Deep understanding of sales principles and frameworks, plus the ability to adapt and iterate them in a fast‑moving environment.

• Analytical and data‑driven mindset, using metrics to inform strategy and drive decision‑making.

• Strong problem‑solving, prioritization, and communication skills; thrives under pressure and deadlines.

• A team player with leadership potential—capable of mentoring others as the team scales.

Why You’ll Love Working at MAI

• Unparalleled Learning: You'll be at the forefront of AI agents in a $1T plus industry working and learning from a stellar team.

• High Impact: As an early member of a lean and powerful team, your work will directly shape our core platform's market fit, our culture, and the success of our customers.

• A Culture of Curiosity: We're a tight‑knit team of passionate builders who value transparency, first‑principles thinking, and a relentless drive to solve hard problems together.

• True Ownership: We believe in empowering our team. You'll have significant autonomy over your work and a clear path for growth as the company scales.

Compensation

We're offering a stake in our success and a commitment to your well‑being. Our total compensation package is designed to support you, both professionally and personally:

• OTE: £150,000 to £180,000 OTE that includes a base salary range of £75,000 to £90,000.

• Equity: We want you to feel invested in our mission, which is why we offer meaningful equity.

Are you ready to build the future with us? We believe in a holistic approach to hiring. If you're passionate about our mission and have a drive to learn and grow, we encourage you to apply even if you don't meet every single requirement. We value potential, curiosity, and hunger. We can't wait to hear from you.