Staff Software Engineer, Identity & Access Management

🕒 July 8

🇺🇸 United States – Remote

💵 $185k - $260k / year

⏰ Full Time

🔴 Lead

🧑‍💻 Full-stack Engineer

🦅 H1B Visa Sponsor

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SimSpace

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2015

🔒 Cybersecurity

☁️ SaaS

🏛️ Government

🔥 Funding within the last year

💰 $39M Venture Round - SimSpace on 2025-10

Cybersecurity • SaaS • Government

SimSpace is a cybersecurity company that provides a realistic, intelligent cyber range platform for training, testing, and validating security teams, tools, and AI agents. Its platform enables live-fire exercises, threat emulation (full kill-chain and atomic), validation of controls and agentic workflows, and disaster recovery and compliance testing; it is used by enterprises and government customers to build cyber readiness and resilience. Founded by experts from U. S. Cyber Command and MIT Lincoln Laboratory, SimSpace focuses on upskilling individuals, strengthening teams, and evaluating AI-driven defenses in realistic, production-like simulations.

📋 Description

• Define and own the technical architecture for authentication and authorization across the SimSpace platform, ensuring systems are secure, scalable, and maintainable. • Lead the design and development of Keycloak-based identity infrastructure, including federation, SSO, token management, and multi-tenant identity flows — multi-tenancy is a core architectural concern and experience designing systems with strong tenant isolation is highly valued. • Design and build the authorization layer for the SimSpace platform — including policy enforcement using a Relationship-Based Access Control (ReBAC) model (currently implemented with Topaz/OPA), authorization services, and the software infrastructure needed to deliver consistent, fine-grained access control across platform services. An understanding of ReBAC and how it differs from RBAC and ABAC models is essential. • Design and build new services that extend and augment the IAM stack — including directory services, user management services, and other components that integrate with or enhance Keycloak and Topaz. • Establish and evangelize cross-team authn/authz standards, providing technical guidance to engineering teams consuming IAM services to ensure correct and secure integration patterns. • Partner with technical leaders across the organization to translate business and security requirements into clear technical roadmaps and executable implementation plans. • Lead project scoping and estimation for new initiatives — breaking down ambiguous requirements into well-defined work, producing credible SWAGs early in the process, and driving planning that the team can execute against with confidence. • Identify and drive resolution of systemic technical risk, performance bottlenecks, and security gaps within the IAM stack. • Actively contribute to architectural review processes, raising the quality bar across the broader engineering organization. • Mentor and grow senior engineers on the IAM team, sharing deep expertise in software design, identity protocols, and security patterns.

🎯 Requirements

• Experienced Staff or Senior Software Engineer with a strong background in building platform or infrastructure services, with meaningful exposure to identity and access management concepts. • Proven ability to design, build, and ship production-grade distributed services — comfortable owning the full software development lifecycle from architecture through delivery. • Solid understanding of authentication protocols (OAuth 2.0, OIDC, SAML) and authorization patterns, with enough hands-on experience to make sound engineering decisions around identity systems. • Experience with Keycloak or comparable identity providers is a plus; willingness to develop deep expertise in Keycloak, Topaz/OPA, and adjacent technologies is essential. • Demonstrated ability to drive technical standards and architectural decisions across multiple teams, balancing idealism with pragmatic delivery. • Strong project scoping and estimation instincts — able to SWAG a new initiative quickly, break it into meaningful milestones, and produce plans that are realistic without being over-engineered. Contributes actively to quarterly planning cycles, helping the team arrive at commitments that are grounded in technical reality. • Strong communicator who can translate complex security and identity concepts for both technical and non-technical audiences. • Proficient in modern software engineering practices: API design, service decomposition, testing strategies, and CI/CD. • Experience with Kubernetes and modern container-based infrastructure as the environment in which these services operate. Comfort with self-hosted, on-premises infrastructure is a strong plus — SimSpace operates its own data centers and candidates should be prepared for the operational realities that come with that. • Comfortable operating with ambiguity — at the Staff level, the roadmap isn't always fully defined, and this role is expected to help shape it. We're looking for someone who drives clarity rather than waiting for it. • Experience working in security-sensitive or compliance-driven environments (DoD, FedRAMP, SOC 2, or similar) is a strong plus.

🏖️ Benefits

• Comprehensive medical, dental, and vision benefits, plus savings plans—coverage starts on day one! • Access to company-paid counseling, coaching, and resources for you and your family through Spring Health. • Plan for your future with a 401(k)-retirement savings plan featuring a company match. • Take the time you need with unlimited vacation and dedicated health & wellness days. SimSpace provides flexible solutions to meet the diverse work-life needs of team members. • Paid leave plans to support you and your loved ones during life’s most important moments. • Equity stock options at hire, with annual performance-based grants—become an invested stakeholder in our shared success. • Earn $1,500–$3,500 for every qualified hire through our employee referral program. • Full- and partial- subsidized membership plans and equipment discounts to help you reach your personalized fitness goals. • Access a LinkedIn Learning membership to prioritize your personal and professional development. • Monthly reimbursements for meaningful connections with teammates through our SocialSpace Community. • Legal plan coverage, pet insurance, wellness reimbursements, and more to simplify life’s details.