Remote AI Training Engineer — Flexible Contract

Alignerr Corp.; Barcelona; Remote; EUR 55,000 - 96,000; Part time

Job summary

Alignerr is seeking Software Engineers in Barcelona for a fully remote, flexible hourly contract to build, evaluate, and improve AI-generated code — helping train AI systems to think like real developers.

You will write solutions, review AI outputs, and provide expert-level feedback that makes AI coding assistants smarter, safer, and more reliable. This is hands‑on engineering work at the frontier of AI development — not theoretical or bureaucratic.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or related field.
• Strong programming skills across languages and paradigms.
• Ability to read, write, and reason about code with clarity and precision.

Responsibilities

• Write, debug, and optimize code across a range of languages, frameworks, and problem domains.
• Review and evaluate AI-generated code for correctness, efficiency, readability, and best practices.
• Identify bugs, logic errors, security issues, and performance bottlenecks in AI outputs.
• Provide structured, detailed feedback explaining why code works — or doesn’t.
• Design challenging coding prompts and edge‑case scenarios to stress‑test AI capabilities.
• Compare and rank multiple AI-generated solutions based on engineering quality.
• Work independently and asynchronously — fully on your own schedule.

Skills

Python

JavaScript

Java

C++

Go

TypeScript

Education

Bachelor's degree in Computer Science or related field

Job description

Alignerr is seeking Software Engineers in Barcelona for a fully remote, flexible hourly contract to build, evaluate, and improve AI-generated code — helping train AI systems to think like real developers.

You will write solutions, review AI outputs, and provide expert-level feedback that makes AI coding assistants smarter, safer, and more reliable. This is hands‑on engineering work at the frontier of AI development — not theoretical or bureaucratic.