Sales Development Team Leader at YC-backed, Series A AI-native HRIS platform

Company: Jack & Jill
Apply for the Sales Development Team Leader at YC-backed, Series A AI-native HRIS platform
Location: London
Job Description:

Job Title

Sales Development Team Leader

Salary

Not Disclosed

Company

YC-backed, Series A AI-native HRIS platform

Location

London, UK

Job Description

Join a high-growth London startup building the next-generation HRIS for modern, distributed teams. As an AI-native Sales Development Team Leader, you will own the outbound function, managing a team of four SDRs while maintaining your own pipeline. You’ll leverage advanced AI tools to redefine prospecting, personalization, and conversion for a product loved by top-tier tech companies.

Why this role is remarkable

  • AI-Native GTM Engine: This isn’t just experimentation; you’ll lead a team where AI tools like Clay, Claude, and Prospeo are core to every workflow, ensuring you stay at the cutting edge of modern sales technology.
  • Direct Impact and Ownership: Reporting to the Head of RevOps, you have a seat at the table to build the outbound playbook from scratch, moving beyond manual processes to automated, high-conversion systems.
  • Proven Traction: Join a YC-backed company at the Series A stage that is already powering people teams at high-growth companies like Manychat and Quantexa, offering both stability and massive upside.

What you will do

  • Lead and Mentor: Manage, recruit, and ramp a team of four SDRs, conducting live call coaching and embedding AI-native working practices to scale the outbound function.
  • Execute Elite Outbound: Own a personal pipeline target for high-priority accounts, modeling best-in-class cold calling and AI-assisted research to set the standard for the entire team.
  • Systematize Experiments: Take the lead on new verticals and messaging hypotheses, using AI tooling to rapidly iterate on sequences and build playbooks grounded in data-driven results.

Ideal candidate

  • Proven Sales Pedigree: 5+ years in outbound sales with at least 2 years of experience managing SDR/BDR teams specifically within a high-growth B2B SaaS environment.
  • AI Fluency: Demonstrable track record of using AI tools (such as Clay, Claude Code, or Lemlist) to improve prospecting efficiency and personalize outreach at scale.
  • Player-Coach Mentality: Master of the phone who views IC work as essential for modeling excellence, combined with analytical instincts to diagnose performance through data.

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Posted: June 11th, 2026