Principal/Senior Engineer Software - Agentic Endpoint Security(Cortex)

We are looking for an experienced and highly capable Principal/Senior Software Engineer to join the Koi team. This role is focused on building and scaling a complex, high-impact product that operates across large-scale enterprise environments. As a Principal Engineer, you will take ownership of major parts of the system and work across the full stack, including backend services, data pipelines, frontend applications, and endpoint/agent code. You will play a key role in shaping the architecture of Koi as it grows, ensuring the system remains scalable, reliable, and easy to evolve.
Key Responsibilities
Design and build scalable, high-performance systems across the full Koi stack
Own architecture and technical direction for critical components
Work across backend, data, frontend, and agent code
Tackle complex challenges related to scale, reliability, and performance
Drive best practices in system design, testing, and observability
Collaborate closely with product, security, and customer-

דרישות:

Required Qualifications
Extensive experience building and scaling distributed systems
Strong backend engineering skills, with ability to work across the full stack
Experience with data-intensive systems and pipelines
Ability to design systems that operate reliably at scale
Strong problem-solving skills and ownership mindset
Experience mentoring engineers and leading technical initiatives
Preferred Qualifications
Experience with public cloud platforms (AWS, GCP, Azure)
Familiarity with containerization and orchestration technologies (e.g., Docker, Kubernetes)
Proficiency in languages such as Go, Python, or Java
Experience with modern frontend frameworks like React or Vue.js. המשרה מיועדת לנשים ולגברים כאחד.