Founding Engineer — Session Engine & Safe ML Pipelines

Reva; Boulder (CO); Hybrid; USD 140,000 - 210,000; Full time

Job summary

Reva is seeking an experienced backend engineer to own the generation pipeline, including prompt handling, schema validation, and model routing. You will ensure the system safety net is boring and reliable, catching obvious issues before any model is invoked.

You’ll also build evaluation sets to measure the impact of prompt changes against known-safe states. The role emphasizes deploying in production with language models, focusing on cost efficiency and practical reliability for sessions used

Qualifications

• Five or more years building backend systems other people depend on.
• Experience with language models in production and evaluation-minded.
• Proficiency in TypeScript or strong path to proficiency within a fortnight.
• Ability to discern between a demo and a reliable product used at 7am by tired users.

Responsibilities

• Own the generation pipeline: prompt, schema validation, red-flag screen, and model routing.
• Make the safety net boring and reliable, catching obvious issues before any model is asked.
• Build the evaluation set; measure prompt changes against known-safe states before shipping.
• Keep costs per session low by routing smarter rather than prompting deeper.

Skills

Backend systems

Production language models

TypeScript

Cost optimization

Job description

Reva is seeking an experienced backend engineer to own the generation pipeline, including prompt handling, schema validation, and model routing. You will ensure the system safety net is boring and reliable, catching obvious issues before any model is invoked.

You’ll also build evaluation sets to measure the impact of prompt changes against known-safe states. The role emphasizes deploying in production with language models, focusing on cost efficiency and practical reliability for sessions used