Senior Software Engineer, Full-Stack - Security Platform

Vannevar; United States; Remote; USD 190,000 - 260,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Remote friendly with WeWork access

Unlimited PTO and company-wide offtime

401(k) match

Lifestyle & wellbeing stipends

Salary top-up during military reserve

Fully paid parental leave

Child and pet care reimbursement

Job summary

Vannevar is building an advanced defense technology platform focused on secure authentication and authorization. We seek a senior backend/frontend engineer to scale the platform, own user and permission management, and contribute to product direction.

You will work across Python/Java backends, React/TypeScript frontends, and identity protocols, collaborating with product teams to ship secure, scalable solutions in ambiguous environments.

Qualifications

• 7+ years of software engineering experience.
• Experience with relational databases like PostgreSQL and distributed systems.
• Proficiency in frontend technologies including React, TypeScript, and Node.js.
• Experience with identity concepts such as OAuth 2.0, OIDC, SAML, JWT, RBAC/ABAC, or SSO.

Responsibilities

• Build and scale Vannevar's centralized authentication and authorization platform, including tenant isolation across customer environments.
• Own the internal self-service platform for user, group, and permission management.
• Build tooling and visualizations to help users understand and validate access permissions.
• Evolve platform management interfaces, including the feature flag system.
• Partner with product engineering teams to build shared authorization and resource-sharing capabilities.
• Shape the long-term roadmap for the Security Platform team.

Skills

Backend development (Python/Java)

Frontend development (React/TypeScript

Relational databases (PostgreSQL)

Distributed systems

OAuth 2.0 / OIDC / SAML / JWT

RBAC/ABAC / SSO

Tools

OpenFGA / Keycloak

OpenID / SSO concepts

Job description

Responsibilities

• Build and scale Vannevar's centralized authentication and authorization platform, including tenant isolation across customer environments
• Own the internal self-service platform for user, group, and permission management
• Build tooling and visualizations to help users understand and validate access permissions
• Evolve platform management interfaces, including the feature flag system
• Partner with product engineering teams to build shared authorization and resource-sharing capabilities
• Shape the long-term roadmap for the Security Platform team

Requirements

• 7+ years of software engineering experience
• Strong backend expertise in Python or Java
• Experience with relational databases like PostgreSQL and distributed systems
• Proficiency in frontend technologies including React, TypeScript, and Node.js
• Experience with identity concepts such as OAuth 2.0, OIDC, SAML, JWT, RBAC/ABAC, or SSO
• Experience with Keycloak or OpenFGA is a plus
• Strong product intuition and ability to thrive in ambiguous environments

Preferred Qualifications

• Active Security clearance or ability to obtain one
• Prior experience working in a user-facing product role

Benefits

• Health, dental, and vision insurance
• Remote friendly with WeWork access
• Unlimited PTO and company-wide off time
• 401(k) match
• Lifestyle & wellbeing stipends
• Salary top-up during military reserve duty
• Fully paid parental leave
• Child and pet care reimbursement during travel

About the Company

Vannevar is a defense technology company building AI to deter our adversaries. Our agentic AI is purpose-built to model adversary behavior, simulate campaigns, and recommend the best course of action to decision makers in the national security and intelligence communities.