Founding Sales Associate at VC Backed Startup

Accelerate your sales career at a startup.

At Jumpstart, we help ambitious salespeople land roles at the UK’s most exciting VC-backed startups and ensure they thrive in their roles.

As a Founding Sales Associate
, you’ll join a startup at a critical stage, working directly with the founder and early team to build the first sales motion from the ground up
. You’ll have real ownership from day one, learn at founder-speed, and play a visible role in shaping how the business grows.

Landing a Founding Sales Associate role through Jumpstart means more than just a job offer:

• Work with high-growth, VC-backed startups - connect directly with the UK’s most exciting startups.
• Chat directly with founders & sales leads - get fast responses and direct outreach from founders who are actively hiring.
• 1:1 interview training & support - tailored prep with startup sales leaders so you can go into every interview with confidence.
• Community & mentorship - join a network of Jumpstart alumni and mentors to help you smash targets and accelerate your career once in role.

While the exact role varies by startup,
Founding Sales Associate responsibilities typically include:

• Build and own early revenue
  : prospecting, outreach, qualification, and follow-ups across the full top of the funnel.
• Work directly with the founder to shape messaging, ICPs, pricing assumptions, and early sales playbooks.
• Execute daily while building systems — learning from calls and deals to help create repeatable sales processes and CRM workflows.
• Experiment, learn fast, and adapt — there are no rigid playbooks; your ideas will directly influence how sales is done.
• Play a core role in a startup’s growth
  , where every new lead, deal, and repeat customer genuinely matters.
• Grow into more senior roles as the company scales.

We’re looking for people who:

• Have 2–4 years of sales experience in tech/startups
  .
• Are motivated by exceeding targets & can demonstrate how you’ve done this before.
• Are confident speaking with decision-makers and can build rapport quickly.
• Are highly ambitious & looking for a career that gives you real ownership.

Extra points if you’ve:

• Worked in a startup or high-growth environment before.
• Have side hustles, projects or other achievements that show your drive.

• Average base salaries
  : £40–80K OTE (depending on startup & role seniority).
• Startups
  :
  Seed to Series A, with ~50% of roles not advertised elsewhere
  .

Need convincing? Hear from our alumni.

• Apply in under a minute on our website.
• Short virtual interview with the Jumpstart team.
• Create your profile & get exclusive access to high-growth startup sales roles.

On average, it takes ~4 weeks to land an offer and you can do the process alongside your current role.

👉 Want to be a Founding Sales Associate at one of the UK’s most exciting startups?

Apply today and we’ll get you in front of the right founders, fast.