Senior Software Engineer - Security

What You'll Do

As a Senior Software Engineer - Security, you will design, build, and operate the security capabilities that protect Radiant's cloud platform and infrastructure.

You'll work across identity, access control, secrets, network security, platform hardening, auditability, and compliance controls. You'll partner closely with product, infrastructure, SRE, networking, security, and compliance teams, and with customers on their most demanding security requirements.

This is a hands-on engineering role focused on making security embedded, scalable, automated, and easy to consume across the platform. You'll own significant security services from design through production, working alongside our Principal Engineers on their architecture.

Key Responsibilities

• Design, build, and own security services and platform capabilities, and contribute to their architecture and technical designs.

• Build core security services across IAM, RBAC, workload identity, secrets, encryption and key management, audit logging, network controls, and policy enforcement.

• Turn product, customer, and regulatory requirements into well-designed APIs and implementations, working with the Security Product Manager and Principal Engineers.

• Automate policy enforcement, configuration hardening, detection, remediation, and software supply chain security.

• Implement strong tenant isolation and least-privilege access across the control plane and network and data plane.

• Support enterprise customer security reviews, audits, and incident response.

• Contribute to security engineering standards through code review, and support less experienced engineers.

Your Profile

• Strong hands-on engineering skills in one or more systems languages such as Go or similar.

• Solid experience building and operating distributed systems, with depth in cloud and network security, IAM, or security infrastructure.

• Experience owning significant components end to end, from design through production and operation.

• Strong technical knowledge across several of:

• Identity & access: IAM, RBAC/ABAC, OAuth 2.0, OIDC, SAML, SSO, federation, mTLS,