The Role

As our UK-based Customer Onboarding Executive, you’ll be a dedicated point of contact for London Marathon Events (LME)—one of our most iconic and strategically important partners. LME delivers the world-famous TCS London Marathon and a suite of other high-profile events, and your mission will be to ensure their experience with Let’s Do This is seamless and supportive. You’ll be working closely with the Account Management Lead who owns the LME relationship from a strategic and commercial perspective, supporting them to deliver true value from the partnership.

This is a relationship-first, detail-driven role where around 75% of your time will be spent supporting LME. You’ll work closely with their internal team, often joining weekly meetings and likely spending one day a week working from their office to stay in sync. You’ll be their go-to for all things event and ticket build and management—ensuring our platform delivers value, scale, and reliability to their operations.

The rest of your time will be spent supporting additional UK partners, collaborating cross-functionally with Account Managers, Product, and Support teams to ensure all Event Organisers receive world-class service.

Responsibilities

London Marathon Events (LME) – Primary Focus

• Build a deep understanding of LME’s business, operations, and event needs.
  

• Be their expert partner for all things event and ticketing setup, working closely to scope and configure registration flows, ticket types, pricing, and logistics.
  

• Attend regular meetings (in-person and remote), maintaining a pulse on evolving requirements and proactively identifying how our platform can meet them.
  

• Be embedded in their workflows—ensuring smooth execution across build, launch, and live event support.
  

• Represent LME’s voice internally, championing feedback, raising bugs, and surfacing product insights to inform our roadmap.
  

• Collaborate closely with LME’s Account Manager to prioritise features and issues, ensuring alignment with LME’s evolving needs and requirements.

Wider EO Support – Secondary Focus

• Deliver onboarding and training for Event Organisers to maximise their understanding and adoption of our platform.
  

• Handle support tickets, diagnose and resolve issues, and escalate to the Product team as needed.
  

• Maintain and contribute to internal documentation and tooling to improve processes at scale.
  

• Partner with Account Managers to help nurture and grow strategic accounts beyond LME.

About You

• You’re excited to go deep on one account and become an embedded, trusted extension of their team.
  

• You’re detail-obsessed, tech-savvy, and thrive in fast-paced, high-stakes environments.
  

• You’re a strong communicator—able to adapt your tone and approach to different stakeholders and levels of technical understanding.
  

• You love solving complex problems and navigating ambiguity with clarity.
  

• You balance proactive initiative with reliable follow-through—always closing the loop.
  

• You’re highly organised and can juggle a high volume of tasks without letting anything fall through the cracks.
  
  

Preferred Experience

• 1–3 years experience in account management, onboarding, or technical support in a SaaS or tech-enabled environment.
  

• Experience working with large, high-profile clients or events with complex requirements.
  

• Familiarity with technical systems and platforms—bonus points if you've worked with ticketing or registration flows.
  

• Comfortable with tools like Notion, Salesforce, Slack, Looker, and Google Suite.
  
  

Who We Are

Let's Do This is the online company that gets everyone together offline.

We exist to inspire people across the world to come together and experience moments that make them feel alive. We’re currently going after mass participation sports events (Marathons, Triathlons, 10Ks, 5Ks, swim races), where we’re proud to be the global leader.

We’re at a super exciting and rapid stage of our development. We now take over 1.5 million bookings every year, driving growth for our industry from large-scale races like the UK’s London Marathon Events and the Great North Run to hero races like the Hackney Half, Peachtree Road Race, the London Triathlon, or grassroots races like those from RunThrough.

We’ve grown exponentially in the UK since our launch in 2017 and are now in the process of expanding within the US market with the same energy our brand represents. We’ve raised $90M to date and were the fastest growing company on YCombinator, and our investors also include Tier 1 VCs NFX, EQT, and legendary individuals Serena Williams and Usain Bolt.

How did we do it? 

With an exceptional team. The Let’s Do This team brings in experience ranging from London’s fastest-growing start-ups to the world's biggest tech companies, including Facebook, Google, Deliveroo, King and Skyscanner. 

We’re passionate about finding fantastic talent to add to an already extraordinary group. At Let's Do This, we are a team of passionate and hardworking individuals who believe that extraordinary talent can come from any background. We encourage applications from people from all walks of life, as we know that diverse perspectives fuel innovation and creativity. Join us in making a difference with your unique experiences.