We're building the world's first invisible biometric authentication system at TWOSENSE.AI. Our technology recognizes users by their unique behaviors—how they type, swipe, and move—eliminating passwords and security friction. No more authentication headaches, just seamless security that works in the background.We're an engineer-founded team of PhDs and exceptional developers who value autonomy, transparency, and technical excellence. This is a fully remote position where you'll directly shape our product and your career trajectory.What You'll DoYou'll be working on the core product alongside the team and directly with our CTO John. Your day-to-day will be a mix of developing new features, reviewing code, and supporting existing codebases. You will be directly responsible for advancing our products across multiple platforms, in addition to developing backend API’s and partner integrations. You will be involved in the full development lifecycle including: design, development, testing, deployment, and maintenance.You'll Love This IfYou’re comfortable in the chaos of a startup, but also like working on a team that’s dedicated to finding the right way to build things, and building them right the first time. You also:Obsess over writing clear and “clean code.”Believe in strong peer review and value feedback as an opportunity for reflection and improvement.Practice test-driven/test-first development.Take pride in your craftsmanship to develop maintainable software products.Have a “team-first” mentality and love collaborating with other team members.Take initiative to detect problems before they arise, and identify potential solutions.Have the ability to communicate clearly with team members and the rest of the business.Most of all, you are looking to learn new things every day, and how much you’re learning is one of the key things you care about. RequirementsMust-haves:Located in ArgentinaStrong experience with C#, .NET Core, and EF CoreStrong understanding of SOLID principles, especially SRP and DIPProficiency in automated unit and integration testing strategiesFamiliarity with SQL and relational databasesDemonstrated ability to ship production code with AI-assisted workflowsGreat communication skillsExperience designing and consuming REST APIsStrong grasp of common design patterns and best practicesNice-to-haves:Hexagonal/Clean/Onion architectureDomain-Driven DesignWin32 API / C++TypeScript or JavaScriptSAML / OIDCMachine LearningPythonmacOS developmentBenefitsWhy Join Us:Fully remote - Work from anywhereMeaningful equity - Own a piece of what you buildFlexible PTO - Take time when you need itMonthly project days - Dedicate one day a month to something you’re passionate aboutOnline learning resources - O'Reilly, Pluralsight, technical books, etc…Team gatherings - Travel covered for company meet-ups and team eventsFull tech setup - High-end equipment, VPN, and resources providedWe're growing fast, and you'll have plenty of opportunities to shape the company, influence our direction, and rapidly grow your career.
We're building the world's first invisible biometric authentication system at TWOSENSE.AI. Our technology recognizes users by their unique behaviors—how they type, swipe, and move—eliminating passwords and security friction. No more authentication headaches, just seamless security that works in the background.
We're an engineer-founded team of PhDs and exceptional developers who value autonomy, transparency, and technical excellence. This is a fully remote position where you'll directly shape our product and your career trajectory.
What You'll Do
You'll be working on the core product alongside the team and directly with our CTO John. Your day-to-day will be a mix of developing new features, reviewing code, and supporting existing codebases. You will be directly responsible for advancing our products across multiple platforms, in addition to developing backend API’s and partner integrations. You will be involved in the full development lifecycle including: design, development, testing, deployment, and maintenance.
You'll Love This If
You’re comfortable in the chaos of a startup, but also like working on a team that’s dedicated to finding the right way to build things, and building them right the first time. You also:
- Obsess over writing clear and “clean code.”
- Believe in strong peer review and value feedback as an opportunity for reflection and improvement.
- Practice test-driven/test-first development.
- Take pride in your craftsmanship to develop maintainable software products.
- Have a “team-first” mentality and love collaborating with other team members.
- Take initiative to detect problems before they arise, and identify potential solutions.
- Have the ability to communicate clearly with team members and the rest of the business.
- Most of all, you are looking to learn new things every day, and how much you’re learning is one of the key things you care about.
Requirements
Must-haves:
- Located in Argentina
- Strong experience with C#, .NET Core, and EF Core
- Strong understanding of SOLID principles, especially SRP and 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
Benefits
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 something you’re passionate about
- Online learning resources - O'Reilly, Pluralsight, technical books, etc…
- Team gatherings - Travel covered for company meet-ups and team events
- Full tech setup - High-end equipment, VPN, and resources provided
We're growing fast, and you'll have plenty of opportunities to shape the company, influence our direction, and rapidly grow your career.
Twosense is software that automates all the work we humans have to do to keep our digital identities secure. We’re breaking the paradigm of identity security that relies on humans and replacing human effort, and human error, with software and automation. We use AI to drive passive biometrics which automates the manual authentication process, creating a much better user experience with far greater security. Our mission is to fundamentally change the nature of secure human-computer interaction. We’re creating a future where how bad it is today will be a fading memory. like to forget a password, or to type in 6-digit codes from text messages over and over again.We launched with the United States Department of Defense as our first customer, and we’ve now expanded to Enterprise customers focusing on employee identity. We’re launching with official collaboration and integrations with identity software providers like Okta, Microsoft, Thycotic, with more partners onboarding now. We are generating recurring revenue from customers who love us, with a scalable, revolutionary Enterprise product, and just announced that we’ve raised significant VC funding to attack a massive green-field opportunity.
Twosense is software that automates all the work we humans have to do to keep our digital identities secure. We’re breaking the paradigm of identity security that relies on humans and replacing human effort, and human error, with software and automation. We use AI to drive passive biometrics which automates the manual authentication process, creating a much better user experience with far greater security. Our mission is to fundamentally change the nature of secure human-computer interaction. We’re creating a future where how bad it is today will be a fading memory. like to forget a password, or to type in 6-digit codes from text messages over and over again.
We launched with the United States Department of Defense as our first customer, and we’ve now expanded to Enterprise customers focusing on employee identity. We’re launching with official collaboration and integrations with identity software providers like Okta, Microsoft, Thycotic, with more partners onboarding now. We are generating recurring revenue from customers who love us, with a scalable, revolutionary Enterprise product, and just announced that we’ve raised significant VC funding to attack a massive green-field opportunity.
