Senior Security Engineer - San Francisco

Giga•California, CA

18h

About The Position

About Giga Giga has recently raised a $61M Series A and has several paying customers, including DoorDash. We’re building the next generation of customer experience — real-time AI agents that can understand emotion, resolve issues instantly, and scale across the world’s largest enterprises. It’s an exciting inflection point for the company. While we have been successful, we have larger ambitions. Our goal is to become the go-to AI platform for all enterprise automation, powered by our voice superintelligence. To achieve this, we need more great engineers. The work affects millions of people every day and our engineers have autonomy and make true impact. This opportunity is unique because we have brilliant founders, have found commercial success, and see a clear path to becoming a generational company. Some further info about us: Voice AI startup Giga raises $61M Series A DoorDash and Giga Partnership Giga builds AI agents trusted by the largest B2C companies in the world. Industry leaders like DoorDash trust Giga with their most complex support and operations workflows across voice, chat, and email. If being a part of this resonates with you, please apply! The Role We're looking for a security engineer to build the systems and practices that keep our platform and our customers' data safe. Our AI agents handle sensitive customer interactions at scale, which means security isn't a side concern here. It's core to the product. This is a hands-on engineering role, not a compliance-checklist role. You'll write code, build tooling, and design systems while also shaping how the rest of the team thinks about security. You'll be the person who makes it easy to build things securely, not the person who slows everyone down. What You'll Work On A few examples from our current priorities: Application security: Securing the platform end-to-end, from the APIs our customers use to configure agents to the systems that handle real-time conversations and customer data Access controls and authorization: Building role-based access controls, permissions models, and audit logging so our enterprise customers can manage their teams with confidence Security tooling and automation: Building the infrastructure for vulnerability scanning, dependency auditing, secrets management, and automated detection so security scales with the team As a senior security engineer, you'll own security across the stack and have significant influence over how we architect systems. You'll work closely with backend and infrastructure engineers to make sure security is baked into our platform from the start. Tech Stack Backend: Python (Django/FastAPI), TypeScript (Node.js) Infrastructure: AWS, Modal, Kubernetes, Postgres Tooling: Terraform, Docker, CI/CD pipelines

Requirements

4+ years of experience in security engineering, with a strong software engineering foundation
Have secured production systems handling sensitive data and understand the difference between theoretical risks and real ones
Can write production-quality code, not just review it: you'll build security tooling and features, not just file tickets
Think about security as an enabler, not a blocker: you make it easy for other engineers to do the right thing
Are comfortable across application security, infrastructure security, and cloud security
Are excited about the unique security challenges of AI agents: prompt injection, data leakage, and problems that don't have established playbooks yet