# Senior Software Engineer, Full-Stack

**Company:** [Vannevar](https://hotfix.jobs/companies/vannevar)
**Location:** Remote
**Role:** Fullstack Engineering
**Salary:** $150k – $215k/yr
**Experience:** 7+ years
**Skills:** Python, Java, Postgres, React, TypeScript, Node.js, oauth 2.0, openid connect, SAML, jwt, RBAC, abac, SSO, keycloak, openfga
**Posted:** 2026-07-27

> Build and own Vannevar's centralized authentication, authorization, and identity platform as a full-stack engineer. Design scalable backend systems and intuitive frontend interfaces for permission management, partnering closely with product, design, and security teams in a defense tech environment.

## Job Description

## What you’ll do

- Build and scale Vannevar’s centralized authentication and authorization platform, including tenant isolation across customer environments—from development through classified deployments.
- Own the internal self-service platform for user, group, and permission management; partner with Design to deliver intuitive administrative experiences for developers and mission teams.
- Build tooling and visualizations that help developers, administrators, and mission users understand and validate access permissions.
- Own and evolve Vannevar’s platform management interfaces, including the feature flag system, to support new products and customer needs.
- Partner with product engineering teams to build shared authorization and resource-sharing capabilities across the platform.
- Shape the long-term roadmap for the Security Platform team by driving scalable platform capabilities and improving the developer experience.

## What we’re looking for

- 7+ years of software engineering experience, with a strong track record of designing, building, and operating scalable backend systems, and delivering full-stack features from conception through production.
- Strong backend expertise, including proficiency in one or more modern backend languages (e.g., Python, Java), experience with relational databases (e.g., PostgreSQL), distributed systems, and API design.
- Comfortable owning end-to-end development, including frontend work (e.g., React/TypeScript/Node.js) when needed, with a focus on delivering polished, customer-facing experiences rather than specializing exclusively in backend infrastructure.
- Strong product intuition, with the ability to make pragmatic technical decisions, balance user needs with engineering tradeoffs, and thrive in ambiguous, fast-moving environments.
- Experience with identity and authentication concepts and platforms, including OAuth 2.0, OpenID Connect (OIDC), SAML, JWTs, session management, RBAC/ABAC, SSO, Keycloak, OpenFGA, or other authentication and authorization systems.
- Excellent cross-functional collaboration and communication skills, with experience partnering closely with product, design, security, and infrastructure teams, driving technical direction, and aligning stakeholders through ambiguity.

## Nice to have

- Active Security clearance or ability to obtain one and desire to travel to visit users, collect feedback, and debug issues
- Prior experience working in a user-facing product role

## What we offer

The salary range for this position is $150,000 - $215,000 + equity. Within the range, individual pay is determined by experience, relevant education, and/or training.

We’re proud to offer competitive benefits that support our employees. Some key highlights of our benefits package include:

- Health, dental, and vision insurance
- Remote friendly with WeWork access
- Unlimited PTO, shared downtime during the federal holiday calendar, and company-wide off time at the end of each year
- 401(k) match
- Lifestyle & wellbeing stipends
- Salary top-up during military reserve duty
- Fully paid parental leave
- Child and pet care reimbursement during travel

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**Apply:** https://hotfix.jobs/jobs/9275646b-ff5d-4084-80e9-a5587f8e19ac
**Canonical:** https://hotfix.jobs/jobs/9275646b-ff5d-4084-80e9-a5587f8e19ac