Go Security Engineer - SPIFFE & Zero-Trust Architect

Mosaic.tech; Palo Alto (CA); On-site; USD 140,000 - 210,000; Full time

Job summary

Defakto Security is seeking a Software Engineer to advance our next-generation SPIFFE implementation, focusing on workload identity and secure communications across distributed systems. You will write scalable Go services, design security solutions, and collaborate with product and engineering teams to ship secure, production-grade software in a dynamic startup environment.

Ideal candidates have strong systems engineering background, deep Go expertise, and experience with Kubernetes, Docker, and

Qualifications

• Robust background in security-focused systems engineering.
• Expertise in Go and its ecosystem.
• Experience building scalable, production-grade services.
• Hands-on with Kubernetes, Docker, containerd.
• Familiarity with AWS/Azure/GCP.

Responsibilities

• Lead the design and development of a state-of-the-art SPIFFE implementation that integrates a SaaS control plane with on-premise components.
• Innovate and implement security solutions that simplify the adoption of zero trust architectures and enhance service-to-service communications.
• Write scalable, secure, and maintainable code, primarily using Go.
• Collaborate closely with the product team to shape the technological roadmap and features.

Skills

Go

Distributed systems

Security engineering

Kubernetes

Docker

Cloud platforms (AWS/Azure/GCP)

Tools

containerd

CI/CD tooling

Job description

Defakto Security is seeking a Software Engineer to advance our next-generation SPIFFE implementation, focusing on workload identity and secure communications across distributed systems. You will write scalable Go services, design security solutions, and collaborate with product and engineering teams to ship secure, production-grade software in a dynamic startup environment.

Ideal candidates have strong systems engineering background, deep Go expertise, and experience with Kubernetes, Docker, and