Lead Security Engineer

Replit is the fastest way to turn ideas into software. With our powerful AI-powered Agent and Assistant, anyone can create and launch apps from natural language in just one click. Build and deploy full-stack applications directly from your browser—no setup required. Never written a line of code in your life? No problem. Replit makes software creation accessible, collaborative, and lightning-fast. Join us in our mission to empower the next generation of builders.

About the role:

Join us at the forefront of AI coding security as we tackle one of the most critical challenges in software development today. You'll pioneer industry-leading research on "vibe coding" security, working directly with our cutting-edge AI Agent to make code generation safer and more secure. This is a unique opportunity to shape the future of AI-assisted development while collaborating with security industry leaders and protecting millions of developers worldwide.

You will

• Lead the industry on vibe coding security research and prevention techniques

  Improve Replit’s security posture through improved use of static and dynamic analysis, cloud security posture, and access control management.

  Respond to security incidents and communicate security advisories to Replit users

• Partner with security industry leaders on vibe coding security research and best practices

  Model threats on new features in development, shaping them to be more secure

  Improve Replit’s AI Agent to produce more secure code, and to detect and fix issues when they occur

  Required skills and experience

  • Bachelor’s degree in Cybersecurity, Computer Science, or related field, OR equivalent real-world experience in security engineering roles

    7+ years of experience in information security with at least 3 years in a senior/lead role

    Experience with cloud security posture management (GCP, AWS, or Azure)

    Experience with security tools and technologies (SIEM, SAST, DAST)

    Strong understanding of cryptography, PKI, and secure communication protocols

    Experience with compliance frameworks (SOC 2, ISO 27001, PCI DSS)

    Preferred Qualifications

    • Experience supporting engineering teams to build secure-first software

      Experience securing platform as a service environments

      Knowledge of sandbox technologies and secure code execution environments

      Experience with threat intelligence and security research

      Previous experience at a high-growth technology company

      Bonus Points

      Advanced degree in Cybersecurity or related field

      Experience with securing AI/agentic systems

      Experience partnering with leading companies on security research

      Open source security project contributions

      What we value

      • Problem-solving mindset: Ability to approach complex operational challenges systematically and devise effective solutions

        Self-directed and autonomous: Capable of working independently while collaborating effectively with cross-functional teams

        Strong communication skills: Ability to explain complex technical concepts to both technical and non-technical audiences

        Continuous learning: Passion for staying current with industry best practices and new technologies

        Focus on automation: Strong belief in automating repetitive tasks and building self-healing systems

        Full-Time Employee Benefits Include

        Competitive Salary & Equity

        401(k) Program

        ⚕️ Health, Dental, Vision and Life Insurance

        Short Term and Long Term Disability

        Paid Parental, Medical, Caregiver Leave

        Commuter Benefits

        Monthly Wellness Stipend

        ‍ Autonoumous Work Environement

        In Office Set-Up Reimbursement

        Flexible Time Off (FTO) + Holidays

        Quarterly Team Gatherings

        ☕ In Office Amenities
        

        Want to learn more about what we are up to?

        Meet the Replit Agent

        Replit: Make an app for that

        Replit Blog

        Amjad TED Talk

        Interviewing + Culture at Replit

        Operating Principles

        Reasons not to work at Replit

        To achieve our mission of making programming more accessible around the world, we need our team to be representative of the world. We welcome your unique perspective and experiences in shaping this product. We encourage people from all kinds of backgrounds to apply, including and especially candidates from underrepresented and non-traditional backgrounds.

        This is a full-time role that can be held from our Foster City, CA office. The hybrid role has an in-office requirement of Monday, Wednesday, and Friday.