Sr. Full‑Stack Software Engineer - Remote Full-Stack Software Engineer
Location: Global, Fully Remote
Job Type: Contractor | ~15 hours/week
Schedule: Versátil
We're looking for experienced Full-Stack Software Engineers to support an AI training project focused on software development, debugging, code evaluation, and technical problem-solving.
Key Responsibilities
Develop and debug front-end and back-end applications.
Build features, APIs, services, and data models.
Understand and work across unfamiliar codebases.
Troubleshoot application, API, database, and integration issues.
Review and evaluate AI-generated code for correctness, security, performance, and maintainability.
Translate and adapt software builds between programming languages.
Required Skills
Python
React
JavaScript
Java
Node.js
Rust
Go
TypeScript
Strong full-stack development experience
Experience with APIs, databases, application architecture, and debugging
Hiring Process
Submit application and screening questions.
Complete a ~30-minute AI interview.
Complete a technical assessment, if required.
Hiring manager review.
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📌 Senior Full-Stack Engineer — Hybrid + Equity (Madrid)
🏢 Lexroom
📍 Madrid