Security Architecture Lead

About the role

We are looking for a Security Architecture Lead to serve as the primary technical authority for Replit’s security blueprint. In this Technical Lead capacity, you will steer the architectural direction for a team of security architects and engineers, ensuring our platform is resilient and secure by design. You will be a "player-coach"—leading high-impact technical initiatives while providing deep subject matter expertise to both the engineering organization and executive leadership.

Responsibilities

• Technical Leadership & Mentorship
• Maintain the Source of Truth for Replit’s secure architecture
• Drive the design for secure bootstrapping and multi-layered trust
• Actively identify, document, and quantify architectural security risks
• Oversee and conduct deep-dive security reviews for core product features and infrastructure
• Own the architectural strategy for Availability, specifically defending against DoS threats
• Partner with GRC teams to translate complex architectural designs into clear, audit-ready documentation and control frameworks
• Address complex security inquiries from enterprise customers regarding Replit's architectural integrity

Requirements

• 8+ years of experience in security engineering or security architecture
• Proven experience as a Technical Lead, steering large-scale projects and guiding the work of other senior engineers
• Experience writing and maintaining Architecture documents
• Deep expertise in cloud-native security architecture (GCP experience is a significant plus) for multi-tenant SaaS products
• Experience designing secure boot, hardware/Cloud-KMS-rooted trust, and multi-layered defense systems
• Strong understanding of isolation technologies and DDoS mitigation
• Exceptional ability to communicate technical risk to both engineering and executive audiences
• Strong track record of contributing to Cybersecurity Risk Register

Qualifications

• Systems Thinking: Ability to see the "big picture" and understand how security decisions impact the entire stack
• Technical Influence: Ability to drive technical alignment across the organization through expertise and collaboration rather than direct authority
• Autonomy: Comfortable leading major technical initiatives and driving outcomes with minimal oversight
• Problem-Solving Mindset: Passion for breaking down complex security challenges into elegant, scalable engineering solutions

Benefits

• Competitive Salary & Equity
• 401(k) Program with a 4% match (US Only)
• Health, Dental, Vision and Life Insurance
• Short Term and Long Term Disability
• Paid Parental, Medical, Caregiver Leave
• Flexible Time Off (FTO) + Holidays
• Monthly Wellness Stipend
• Autonomous Work Environment
• In Office Set-Up Reimbursement (In-Office Only)
• Quarterly Team Gatherings
• In Office Amenities (In-Office Only)