Product Engineer (Full Stack, Data Platform)

We're a team of machine learning and product engineers training task-specific generative models for psychology. Our mission is to use AI to make mental healthcare more accessible and to help people change their lives in the ways they want. We partner with organizations around the globe and power use cases, including AI-assisted crisis text response and AI counseling, while securing best-in-class datasets to power our models.

We're a well-funded Series A startup backed by top-tier tech investors involved in ElevenLabs, Captions, Shopify, Plaid, Notion, Canva, Twitch, Airtable, and others.

We're building a powerful team by empowering our engineers with the autonomy, flexibility, and resources to do their best work. We dream big and iterate fast. If that sounds like home, we'd love to hear from you.

The Role

You will be the lead developer for Slingshot's Data Platform, used for training and aligning conversational models and agents for the psychology domain. You'll work with a team of predominately ML engineers to implement features that lead to the best experience for end-users who are going through mental health challenges. You'll also work with conversational designers, writers, and psychotherapists who interact with our tools to develop our product experience.

In this role, you’ll truly be working full-stack. You will be your own product manager and designer, taking on difficult problems and solving them through a ruthlessly experimental mindset.

You'll primarily be working with NextJS (Typescript, Vercel, Supabase). You'll also interact with our Kotlin backend, Flutter mobile app, and python machine learning services. You'll be working with custom in-house language models along with voice models (text-to-speech and speech-to-text) and large language models.

About you

  • You’ve shipped web applications zero-to-one and have design-driven sensibilities.
  • You’re fluent in multiple general-purpose programming languages. You have an appreciation for what good typed code looks like and have 3+ years of experience as a software engineer.
  • You have experience with modern backend technologies and architectures like microservices, message queues, caching layers, and SQL/NoSQL databases.
  • You like being a generalist, a team player, want to own what you build, love solving really hard problems, and are driven by building a world-class product.
  • You can ship fast. We work at lightning speed.


  • 3+ years of full-stack experience
  • Experience with React, Typescript, and CSS
  • Based in NY/London

You’ll learn a ton from experienced founders and teammates and work at an incredibly fast pace to ship, learn, and iterate.

What We Offer

  • Competitive compensation
  • Hybrid environment, highly collaborative, fast-paced culture
  • Unparalleled growth opportunity - learn faster than you would anywhere else
  • Work with a passionate team that cares about the future of mental health, especially in a post-AGI world

Our Values

  • Bias towards Action
  • Authenticity
  • Strong opinions, loosely held
  • We're nowhere near the end of history
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