Founding Engineer

Lava

$150K — $180K *
Consumer Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years of relevant engineering experience, ideally full stack with backend focus.
  • Demonstrated capability in system design, particularly for scalability.
  • Familiarity with AI tools; hands-on experience with integrations preferred.
  • Experience in payments, infrastructure, or developer tools is advantageous.
  • Adaptability to fast-paced, ambiguous environments and shifting priorities.

Responsibilities

  • Tackle challenges at the intersection of AI, payments, and infrastructure.
  • Develop integrations with AI providers and payment systems.
  • Work closely with the founder and other teams to define technical direction.
  • Participate in sales calls as a technical representative, linking customer needs and technology.
  • Contribute to shaping company culture and processes from the outset.

Benefits

  • Opportunity to solve major challenges in the AI space.
  • Work in a focused, results-driven team.
  • Direct collaboration with a knowledgeable founder.
  • Influence company strategy and technical decisions from early on.
  • Engage in shaping a new market for AI-to-AI commerce.
Full Job Description
Founding Engineer (NYC)
Lava: the connector to every LLM, API, and MCP.

Join Lava's team in shaping how people and AI build, monetize, and work together.
What You'll Do
  • Work across Lava's three surfaces: the Lava app, Lava MCP, and monetization.
  • Extend the Gateway and monetization systems (metering, billing, payouts).
  • Collaborate closely with the founder, product, and sales to set the technical direction and architecture.
  • Join sales development calls when needed, acting as a forward-deployed engineer who can bridge tech and customer needs.
  • Move fast, adapt to ambiguity, and help shape the culture and processes from day one.
What We're Looking For
  • Driven, resourceful, and self-motivated, thriving in open-ended, fast-changing environments.
  • Deep engineering experience, ideally full stack with a strong backend focus.
  • Strong grasp of system design and building for scale.
  • Hands-on AI user who actively experiments with and integrates AI tools.
  • Experience with payments, infrastructure, or developer tooling is a plus.
  • Comfortable switching between building, selling, and learning from users.
Why You'll Love This Role
  • You'll be solving one of the hardest and most important problems in AI: building the infrastructure that connects and monetizes AI-native products.
  • Work in a small, tight-knit, and highly motivated team that stays focused on outcomes, without unnecessary process or distractions.
  • Work directly with a founder who's built and sold a fintech company before, now doing it again at the center of the AI shift.
  • Be part of a company operating at the cutting edge of AI, where speed, ownership, and impact matter more than process.
  • The media is already excited about what we're building: read our TechCrunch feature here.
  • Significant influence over technical and product decisions from day one.
  • Help shape how the trust layer, access layer, and financial backbone of the AI web get built.
Location & Work Authorization
  • This is an in-person role based out of Lava's New York City office.
  • Candidates must currently be authorized to work in the United States; Lava is unable to sponsor visas at this time.

If you're excited about owning big problems, building products people need, and having a direct hand in how the future of AI commerce works, we'd love to talk.

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