Software Engineer

Company: TWOSENSE.AI
Location: Remote (Argentina)

About TWOSENSE.AI

TWOSENSE.AI is building the world's first invisible biometric authentication system. Our technology recognizes users by their unique behaviors (typing, swiping, movement) to eliminate passwords and security friction, providing seamless, background security. We are an engineer-founded team of PhDs and exceptional developers who value autonomy, transparency, and technical excellence.

What You'll Do

You will work on the core product alongside the team and directly with the CTO. Your day-to-day will involve developing new features, reviewing code, and supporting existing codebases. You will be directly responsible for advancing products across multiple platforms, developing backend APIs, and partner integrations. You will be involved in the full development lifecycle: design, development, testing, deployment, and maintenance.

You'll Love This If

You are comfortable in a startup environment and dedicated to building things right. You value clean code, strong peer review, test-driven development, and craftsmanship. You have a team-first mentality, take initiative, communicate clearly, and are driven by continuous learning.

Must-Haves

• Located in Argentina.
• Strong experience with C#, .NET Core, and EF Core.
• Strong understanding of SOLID principles (SRP, DIP).
• Proficiency in automated unit and integration testing strategies.
• Familiarity with SQL and relational databases.
• Demonstrated ability to ship production code with AI-assisted workflows.
• Great communication skills.
• Experience designing and consuming REST APIs.
• Strong grasp of common design patterns and best practices.

Nice-to-Haves

• Hexagonal/Clean/Onion architecture.
• Domain-Driven Design.
• Win32 API / C++.
• TypeScript or JavaScript.
• SAML / OIDC.
• Machine Learning.
• Python.
• macOS development.

Why Join Us?

• Fully remote: Work from anywhere.
• Meaningful equity: Own a piece of what you build.
• Flexible PTO: Take time when you need it.
• Monthly project days: Dedicate one day a month to a passion project.
• Online learning resources: Access to O'Reilly, Pluralsight, technical books, etc.
• Team gatherings: Travel covered for company meet-ups and events.
• Full tech setup: High-end equipment, VPN, and resources provided.

TWOSENSE.AI is growing rapidly, offering ample opportunities to shape the company, influence direction, and accelerate your career.