Founding – Lead AI Engineer, Mental Health Tech

G2i Inc.

Founding / Lead AI Engineer overseeing the development of an AI-powered mental health product. Collaborating with stakeholders and mentoring a growing team in a fast-paced environment.

Posted 5/27/2026full-timeLondon • 🇬🇧 United KingdomSenior💰 £80,000 - £100,000 per yearWebsite

Tech Stack

Tools & technologies

JavaScriptNode.jsTypeScript

About the role

Key responsibilities & impact

Lead the development of a new AI-powered mental health product (initially audio-focused)
Take full ownership of the project from early-stage scoping through execution
Collaborate with clinicians, designers, and product stakeholders to shape the solution
Architect and build scalable backend systems and APIs
Contribute to (and potentially lead) frontend/mobile application development
Establish engineering best practices, including AI-native workflows
Make key technical and product decisions in an ambiguous, fast-moving environment
Mentor and help build the team as the project scales

Requirements

What you’ll need

Strong experience with Node.js and TypeScript
Experience building production-grade systems (backend-focused, fullstack is a plus)
Solid understanding of system design and architecture
Experience working in early-stage startups or high-ownership roles
Ability to lead projects end-to-end, not just execute tasks
Experience working with AI-powered products or features
Comfortable using AI tools as part of your development workflow (“AI-native” mindset)
Strong understanding of how to guide AI tools effectively, not just rely on them blindly

Benefits

Comp & perks

Competitive salary based on location (aligned with local market benchmarks)
Equity/options included as part of the compensation package

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Node.jsTypeScriptsystem designarchitecturebackend systemsAPIsfrontend developmentmobile application developmentAI-powered productsAI-native workflows

Soft Skills

leadershipproject ownershipcollaborationmentoringdecision makingadaptabilitycommunicationproblem solvingteam buildingguidance