Senior Security Engineer, Identity and Access Management; IAM

K2 is building the largest and highest-power satellites ever flown, unlocking performance levels previously out of reach across every orbit.

Backed by $450M from leading investors including Altimeter Capital, Redpoint Ventures, T. Rowe Price, Lightspeed Venture Partners, Alpine Space Ventures, and others – with an additional $500M in signed contracts across commercial and US government customers – we’re mass-producing the highest-power satellite platforms ever built for missions from LEO to deep space.

The rise of heavy-lift launch vehicles is shifting the industry from an era of mass constraint to one of mass abundance, and we believe this new era demands a fundamentally different class of spacecraft. Engineered to survive the harshest radiation environments and to fully capitalize on today’s and tomorrow’s massive rockets, K2 satellites deliver unmatched capability at constellation scale and across multiple orbits.

With multiple launches planned through 2026 and 2027, we’re Building Bigger to develop the solar system and become a Kardashev Type II (K2) civilization. If you are a motivated individual who thrives in a fast-paced environment and you're excited about contributing to the success of a groundbreaking Series C space startup, we’d love for you to apply.

Identity is the perimeter ry engineer, every ground and mission system, every SaaS tool and automated pipeline depends on the right people and services holding exactly the access they need and nothing more. This role owns that problem end to end:you’lldesign, build, and run the identity platform that governs authentication and authorization across our corporate, engineering, and mission environments.

You’llbe deeply hands-on with our identity provider, SSO and federation, phishing-resistant MFA, lifecycle automation, privileged access, and secrets management, andyou’llretire the standing access and shared credentials that accumulate in any fast-growing company. This is a role for someone who thrives on real-world impact: making least privilege the default without slowing down theteamsbuilding spacecraft. Every access path you close and every workflow you automate directly supports our ability to move fast,operate confidently, and deliver breakthrough satellite capabilities.

• Own and mature the enterprise identity platform, including the identity provider, single sign-on, federation, and directory services across corporate, engineering, and mission environments
• Design and implement authentication standards using modern protocols such as SAML, OIDC, OAuth 2.0, and SCIM, and drive adoption of phishing-resistant MFA including FIDO2 andWeb Authn
• Build and automate identity lifecycle management, including joiner, mover, and leaver workflows, provisioning and deprovisioning, and just-in-time access
• Design andmaintainrole-based and attribute-based access models, entitlement structures, and least-privilege standards for corporate and engineering systems
• Implement andoperateprivileged access management for administrators, service accounts, and break-glass credentials
• Manage machine and workload identity, including secrets management, credential rotation, and the non-human accounts used by automated pipelines and mission systems
• Onboard SaaS and internal applications to SSO and automated provisioning using SCIM, REST APIs, and webhooks, retiring local accounts and shared credentials as you go
• Implement conditional access and risk-based authentication policies, then tune them against real access patterns
• Build and run access review and certification campaigns, producing the evidence auditors and customers require
• Harden cloud IAM across AWS, Azure, or GCP, including roles, trust policies, and permission boundaries
• Write code and infrastructure as code to automate identity operations rather than resolving them ticket by ticket
• Partner with security operations on identity threat detection and response, including credential abuse, session hijacking, and MFA fatigue attacks, and support investigations involving identity
• Serve as the identity subject matter expert in architecture and design reviews, acting as a liaison between the security…