Application Guide

How to Apply for AI & Platform Engineer

at Rethink Wellbeing

🏢 About Rethink Wellbeing

Rethink Wellbeing is a mission-driven organization applying effective altruism principles to scale mental resilience and productivity in the EA community. Unlike typical mental health startups, they focus on peer-delivered group therapy, combining human facilitators with AI to expand access. Working here means directly contributing to a cause that blends cutting-edge AI with tangible social impact.

About This Role

As an AI & Platform Engineer, you'll build the core technical infrastructure for a peer therapy platform: a chatbot triage system that safely routes users, an AI pipeline that evaluates facilitator quality from multimedia, and a full-stack web app for group matching, scheduling, and payments. This is a hands-on role where your code directly affects how thousands of people receive mental health support, requiring both engineering excellence and a safety-first mindset.

💡 A Day in the Life

You might start by reviewing overnight chatbot triage logs, refining escalation rules, then pair with a facilitator to validate AI-generated quality scores. Later, you'll push code for a new scheduling feature in Next.js and Supabase, and end with a async standup to align on safety metrics. Expect a mix of deep technical work and collaborative, mission-driven discussions.

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Interview Prep

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🎯 Who Rethink Wellbeing Is Looking For

  • Full-stack developer proficient in React/Next.js, TypeScript, PostgreSQL, and FastAPI, with experience building authenticated web platforms.
  • Hands-on LLM engineer who has deployed production AI systems, including evaluation pipelines, prompt engineering, and human-in-the-loop validation.
  • Safety-critical thinker who can design reliable escalation logic for risky cases and assess facilitator quality from transcripts, audio, and video.
  • Product-minded engineer with strong written English, able to make judgment calls in a remote, async environment and align with effective altruism values.

📝 Tips for Applying to Rethink Wellbeing

1

Highlight any experience with safety-critical systems or mental health tech—this is not a typical AI role; show you understand the stakes of misrouting a crisis case.

2

Provide concrete examples of LLM evaluation pipelines you've built, including metrics, human-in-the-loop processes, and how you handled edge cases.

3

Demonstrate full-stack proficiency by linking to a deployed web app (especially with Next.js, Supabase, and FastAPI) that includes authentication and payments.

4

Mention your familiarity with effective altruism or similar communities—Rethink Wellbeing serves this audience, so cultural fit matters.

5

Address the 12-month remote contract starting November 2026 explicitly: confirm your availability and comfort with a fixed-term engagement.

✉️ What to Emphasize in Your Cover Letter

["Your approach to building safe AI triage systems: how you'd balance automation with human escalation for risky cases.", 'A specific project where you developed an AI pipeline for quality assessment (e.g., from text/audio/video) and validated it with human feedback.', "Your full-stack capabilities, emphasizing Next.js, Supabase, and FastAPI, and how you've integrated them in a production app.", "Why you're motivated to apply AI to mental health in the EA community, and how you align with Rethink Wellbeing's mission."]

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🔍 Research Before Applying

To stand out, make sure you've researched:

  • → Read Rethink Wellbeing's website and any blog posts to understand their peer-delivered group therapy model and how AI fits in.
  • → Explore effective altruism (EA) principles and communities to grasp the context and values of the users you'll be serving.
  • → Look into existing AI safety and mental health triage frameworks (e.g., crisis hotline protocols) to inform your technical approach.
  • → Investigate the tech stack (Next.js, Supabase, FastAPI) and consider how you'd integrate LLMs with these tools in a secure, scalable way.
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💬 Prepare for These Interview Topics

Based on this role, you may be asked about:

1 How would you design a chatbot triage layer that reliably escalates suicidal ideation or complex trauma to human facilitators?
2 Describe your experience evaluating LLM outputs for safety and quality. What metrics and human-in-the-loop processes have you used?
3 Walk us through building an authenticated web platform with Next.js, Supabase, and FastAPI. How did you handle scheduling and payments?
4 How would you assess facilitator quality from transcripts, audio, and video? What signals would you extract and how would you validate them?
5 Tell us about a time you made a product judgment call under uncertainty. How did you balance speed with safety?
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⚠️ Common Mistakes to Avoid

  • Treating this as a generic AI engineer role and ignoring the safety-critical, mental health context—show you understand the human impact.
  • Failing to provide concrete examples of production LLM systems you've built; theoretical knowledge alone is insufficient.
  • Overlooking the remote, contract nature of the role or not addressing availability for the November 2026 start date.

📅 Application Timeline

This position is open until filled. However, we recommend applying as soon as possible as roles at mission-driven organizations tend to fill quickly.

Typical hiring timeline:

1

Application Review

1-2 weeks

2

Initial Screening

Phone call or written assessment

3

Interviews

1-2 rounds, usually virtual

✓

Offer

Congratulations!

Ready to Apply?

Good luck with your application to Rethink Wellbeing!

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