Senior AI Engineer — Remote, LLM & Browser Automation

Ruby Labs Ltd; Meolo; À distance; EUR 90 000 - 135 000; Plein temps

Avantages offerts par ce poste

Remote work environment

Unlimited PTO

Paid national holidays

Company-provided MacBook

Flexible contractor agreement

Résumé du poste

Ruby Labs Ltd is seeking a Senior AI Engineer to own and scale the AI layer of a core D2C subscription product. You’ll manage production LLM features and browser automation end-to-end, focusing on prompts, structured outputs, evaluation, observability, and cost-aware model selection.

The role uses a modern TypeScript stack (Next.js, Cloudflare Workers, Containers) and browser automation with Playwright. You’ll lead experiments, benchmarks, and production rollouts in a fast-paced environment.

Qualifications

• 5+ years of software engineering with Node.js, TypeScript, Next.js, and Postgres, including edge/serverless runtimes like Cloudflare Workers.

Responsabilités

• Design dynamic prompt templates with conditional logic and context injection for high-quality generation.
• Enforce predictable outputs with JSON mode, function calling, schemas, validators, and repair loops.
• Own complex LLM workflows and integrate them into application logic.

Connaissances

Node.js

TypeScript

Next.js

PostgreSQL

Playwright

Browser automation

LLM observability

JSON schemas

Outils

Cloudflare Workers

Hono

Hatchet

Drizzle

Supabase Postgres

Vercel

LangChain

Description du poste

Ruby Labs Ltd is seeking a Senior AI Engineer to own and scale the AI layer of a core D2C subscription product. You’ll manage production LLM features and browser automation end-to-end, focusing on prompts, structured outputs, evaluation, observability, and cost-aware model selection.

The role uses a modern TypeScript stack (Next.js, Cloudflare Workers, Containers) and browser automation with Playwright. You’ll lead experiments, benchmarks, and production rollouts in a fast-paced environment.