Staff Machine Learning Engineer — Build AI for Mental Health

Slingshot AI; Greater London; Hybrid; GBP 120,000 - 160,000; Full time

Benefits offered by this job

Office travel NYC-London

Competitive compensation & equity

Free lunch & coffee in office

Learning budget

Personal therapy

Job summary

Slingshot AI, the team behind Ash, is seeking a Member of Technical Staff focused on Machine Learning to ship models, training infrastructure, harnesses, and evals end-to-end. You will join a small, world-class team in London or NYC offices, owning important parts of the product and driving meaningful impact on mental health tech.

We value ownership, curiosity about ML, and a hunger to build a market-leading platform.

Qualifications

• 3+ years of engineering experience.
• Experience with LLMs, ideally with fine-tuning, harness engineering, and evals.
• Proficient in using agents to do your homework for you.
• Driven by creating a world-class product with a world-class team, want to own what you build.
• Experience in a fast-paced startup, or the drive to thrive in one.
• Collaborative and direct. You enjoy working in person with a small team.

Responsibilities

• Ship models, training infra, harnesses and evals end-to-end.
• Design, build and launch the tech that makes Ash differentiated as a specialized model for mental health.
• Act as an owner and deliver value to users, shipping experiments and features as we learn.

Skills

3+ years engineering experience

LLMs experience

Agent-based research

Ownership & delivery

Startup experience

In-person collaboration

Tools

Dart/Flutter

Kotlin

Next.js

TypeScript

Rust

gRPC

GCP

Job description

Slingshot AI, the team behind Ash, is seeking a Member of Technical Staff focused on Machine Learning to ship models, training infrastructure, harnesses, and evals end-to-end. You will join a small, world-class team in London or NYC offices, owning important parts of the product and driving meaningful impact on mental health tech.

We value ownership, curiosity about ML, and a hunger to build a market-leading platform.