Senior Software Engineer

ETHOS

Full-time IT
Apply Now
Location
madrid, kingdom of spain, Spain
Posted
May 24, 2026

Job Description

Note: This is a flexible, part-time opportunity that is 5-20 hours per week at $75 per hour (up to $1.5k/week). It can be done remotely and can be done both alongside or instead of full-time employment.
Si sus habilidades, experiencia y cualificaciones coinciden con las de esta descripciรณn del puesto, no demore su solicitud.
We're working with a leading foundational AI lab to find experienced software engineers who can help train their latest language model on software development tasks.
We're looking for Senior and Staff engineers with 5+ years at top technology companies to create, evaluate, and refine AI-generated work across core software engineering workflows: system design, code review, algorithm implementation, architecture documentation, debugging, and technical writing.
Compensation:
$100/hour
Commitment:
Flexible, up to 20 hours per week (up to $2k/week)
Location:
Fully remote, work on your own xhfqzwm schedule
Qualifications:...