Full-time

Lead Software Engineer, (Remote) - 200,000/year USD

Posted by Crossover • Buenos Aires, Buenos Aires C.F., Argentina

📍 Buenos Aires, Buenos Aires C.F. 🕒 February 22, 2026

About the Role

We're building platforms that serve thousands of students and teams in production:
TimeBack: Educational platform supporting Alpha School's 2-hour learning model (99th percentile test results).
Incept: Content generation platform producing all personalized educational content for multiple learning applications deployed at Alpha School.
Crossover: AI-powered hiring platform handling tens of thousands of applicants per month, staffing schools and companies globally.
You'll take ownership of one of these platforms and dedicate most of your time to implementing the complex components of the codebase with a small team (3-5 strong engineers, no juniors). The architecture decisions you make will determine whether other teams can quickly build new applications, integrate seamlessly, and deliver value to students. Correct decisions unlock massive leverage. Poor decisions generate integration failures and destroy velocity across multiple teams.
You design what you build and operat...

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