Founding Sales Engineer B2B SaaS, AI Platform

Founding Sales Engineer (B2B SaaS, AI Platform)

Level: Senior IC → early people leadership

Deal size: $100k–$200k+ ACV (Mid-Market & Enterprise)

Comp: $150k - $236k base + OTE and Equity (80/20 split)

We’re hiring a Founding Sales Engineer to join a well-funded, high-growth B2B SaaS company at a pivotal inflection point. This is the first dedicated pre-sales hire
, stepping in as the business scales enterprise revenue and formalises its go-to-market motion.

The company is post-Series B, backed by top-tier investors, with strong commercial traction and an expanding enterprise customer base. Product-market fit is established — the focus now is on scaling revenue, tightening execution, and building repeatable pre-sales infrastructure.

• Own technical pre-sales across mid-market and enterprise opportunities, partnering closely with a growing team of Account Executives
• Lead technical discovery, solution design, and high-impact, customised demos
• Build demo environments, workflows, and lightweight interfaces — often using modern AI coding tools rather than relying heavily on core engineering
• Act as the technical bridge between customers, sales, product, and engineering
• Support early customer onboarding where needed (this is not a Customer Success role, but you’ll help unblock early-stage deals)
• Create the pre-sales playbook from zero
  : demo narratives, reference architectures, discovery frameworks, enablement materials
• Feed real-world customer insight back into product and engineering to influence roadmap decisions
• Progress into a senior / player-manager role
  , with responsibility for hiring and scaling the sales engineering function

• 5+ years in customer-facing technical roles
  , including meaningful experience in pre-sales / solutions engineering
• An engineering background (ex-developer strongly preferred)
• Solid understanding of backend fundamentals (e.g. Python, APIs, integrations)
• Comfortable building demo prototypes and interfaces using AI-assisted development tools
• Experience supporting enterprise and upper mid-market sales cycles
• Commercially minded — able to balance technical depth with deal progression
• Comfortable operating in ambiguity and building structure in fast-moving environments
• Startup or high-growth B2B SaaS experience strongly preferred

• Join a well-capitalised company with clear momentum and an ambitious growth plan
• True founding sales engineer opportunity with real ownership and visibility
• Work on complex, high-value deals with meaningful technical depth
• Direct exposure to sales, product, and engineering leadership
• Clear path into senior / leadership responsibility as the function scales

If you’re a technically credible pre-sales professional who enjoys building, prototyping, and shaping how pre-sales is done — this is a rare chance to do it properly, from the ground up.