Log inSign up free
  • Home
  • Profile
  • Jobs
    • Applications
    • Career
    • Resume
    • Cover letters
  • Content
    • Posts
    • Media
  • Messages
  • Analytics
    • Overview
    • Pages
  • Portfolio
  • More tools
    • Hiring
  • Settings
All jobs
AAAnyone AI logo

Anyone AI

Spain

Backend Developer (Spain).

CONTRACTREMOTEENGINEERING$45–80/HR

Anyone AI is recruiting skilled Backend Developers to work on a project with a leading AI lab.

Qualifications:

  • Advanced professional written proficiency in English

  • 3–7 years of professional software engineering experience

  • Strong proficiency in Python and JavaScript/TypeScript; working knowledge of Java, C#, or Go

  • Backend or full‑stack development experience in production systems

  • Experience with testing frameworks (e.g., pytest, Jest, JUnit, xUnit, Go testing)

  • Proven ability to debug and navigate large, multi‑file codebases

  • Experience with code reviews, refactoring, and production migrations

Engagement: Part-time, project-based expert evaluation work

Work Type: Remote

Contributors will design and evaluate realistic software engineering tasks, including bug resolution, feature implementation, refactoring/migration, and test generation. Work includes both creating complex coding scenarios and reviewing peer submissions for quality and accuracy.

This is a project-based consultant role. Consultants will be paid on a per-project basis; hourly rates are estimates based on anticipated completion time. Consultants control their own schedule, provide their own tools, and may simultaneously provide services to other vendors/employers (subject to those vendors’ allowances).

Responsibilities:

Contributors will:

  • Design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing

  • Write clear natural-language specifications and reference implementations

  • Develop and extend unit and integration test suites

  • Review peer-generated tasks for correctness, clarity, and realism

  • Identify edge cases, ambiguities, and potential failure modes

  • Ensure alignment between specifications, code, and expected outputs

Expected Outcomes:

  • High-quality, production-realistic coding tasks

  • Complete and correct reference implementations

  • Robust test coverage and validation artifacts

  • Structured, actionable peer review feedback

Pay
$45–80/hr
Where
Spain
Work
Remote
Type
Contract
Posted
14 Sep, 2026
Apply on the original postingSign in to apply

Unverified board

more at Anyone AI.

20 Oct, 2026

Anyone AI

Marketing Expert

AAAnyone AI logo
  • Contract
  • Senior level
  • Remote
  • Sales & Marketing

$30–60/hr

Fully Remote +15

Details
20 Oct, 2026

Anyone AI

Ejecutivo/a Senior de Cobranzas y Recuperación de Cartera – LATAM

AAAnyone AI logo
  • Full time
  • Senior level
  • Remote
  • Data & ML

Fully Remote

Remote

Details
19 Oct, 2026

Anyone AI

UX/UI Graphic Designer

AAAnyone AI logo
  • Contract
  • Remote
  • Design

Fully Remote

Remote

Details

similar roles.

22 Oct, 2026

Ace

Intune Endpoint Engineer

ACAce logo
  • Engineering

Coppell, TX

Salary not listed

Details
22 Oct, 2026

Ace

Software Engineer Lead eBiz

ACAce logo
  • Senior level
  • Engineering

Location not stated

Salary not listed

Details
1 Oct, 2026

Weforum

Senior Associate, Content and Programming

WEWeforum logo
  • Senior level
  • Engineering

Beijing, China

Salary not listed

Details
2 Oct, 2026

Weforum

Engineering Manager, Product Engineering

WEWeforum logo
  • Leadership
  • Engineering

Geneva, Switzerland

Salary not listed

Details
5 Oct, 2026

Corpartners

Hardware Customer Success Engineer

COCorpartners logo
  • Full time
  • Engineering

Engle Martin-Atlanta GA Office HQ, United States of America

Full time

Details
9 Oct, 2026

Disa

Drug Test (Mobile), Specimen Collector

DIDisa logo
  • Engineering

$15–19/mo

USA - TX - Pasadena, United States of America

Details