Senior Fullstack Developer

Guardio is on a mission to redefine consumer cybersecurity for the modern internet.



We operate at consumer scale, protecting millions of people every day across devices, accounts, and digital touchpoints. In a world where phishing, fraud, and AI-powered scams evolve overnight, Guardio stays ahead of the curve.We move fast, think deeply, and build with purpose. Our culture is rooted in transparency, feedback, and collaboration along with shared wins, team dinners, company trips, and good times.We’re a team of 100+ makers, doers, and boundary-breakers. If you’re ready to tackle meaningful challenges, grow at lightning speed, and help shape the next frontier of online safety, you belong here.

Let's cut to the chase. What's the job?



We are looking for a Fullstack Developer to join our R&D team!

You will:

• Work with amazing teams across Product, DevOps, Security, Content, and Design to bring new features and ideas to life.
• Develop robust, high-performance web and mobile applications using React/React Native (TypeScript) and Python that enhance user security and privacy.
• Tackle high-scale, low-latency challenges and process big data, using A/B testing to optimize user acquisition flows.
• Own the full development process—from ideation to production deployment—ensuring seamless and engaging user experiences.
• Continuously innovate by exploring new tools and techniques, while upholding quality and security through rigorous testing and code reviews.
  
  

• 5+ years as a Fullstack Developer, delivering production-grade solutions from initial commit to launch.
• Deep expertise in TypeScript, React, and Python; bonus points if you have mobile app experience with React Native.
• Strong sense for UI/UX and a hands-on problem solver who loves getting their hands dirty.
• A team player who thrives in agile environments, is self-motivated, and consistently turns challenges into effective solutions.
• Bonus: Familiarity with web cybersecurity fundamentals and experience with relational and NoSQL databases like BigQuery, MySQL, or Redis.
  
  

• React + React Native (using TypeScript)
• Python
• Google Cloud using K8S.
• MySQL + Redis + Bigquery
• Thinking of a great addition? Let's do it.