FusionAuth Tech Stack

Self-hosted CIAM platform with hybrid deployment for developers

Software Development Broomfield, Colorado 51–200 employees Founded 2009 Privately Held

FusionAuth operates a downloadable customer identity and access management platform designed for developers who need auth features—login, SSO, MFA, social login—without vendor lock-in. The tech stack (Java, JavaScript, OAuth, OIDC, SAML, Docker, Kubernetes) reflects a self-hosted, standards-based architecture. The hiring mix is heavily skewed toward marketing (4 roles) relative to engineering (2), with most positions at senior level, signaling a growth-stage company shifting from product-market fit toward demand generation and sales acceleration.

Tech Stack 12 technologies

Core StackJava JavaScript Docker Kubernetes Slack HTML/CSS Git OAuth OIDC SAML mTLS

What FusionAuth Is Building

◆Challenges

Scaling content marketing operations
Expanding sales team to accelerate growth
Scaling marketing organization
Expanding brand influence
Scaling demand engine
Unnecessary cognitive load
Complex enterprise product
Supporting growing number of clients
Handling production incidents
Pipeline growth

▲Active Projects

Content marketing operations
Seo strategy
Content strategy
Develop analyst relations program
Build customer advocacy programs
Create research reports
Global pipeline strategy
Quarterly pipeline plans
Persona-targeted campaigns
Shaping sales process and messaging

Hiring Activity

Steady10 roles · 4 in 30d

Department

Marketing

Engineering

Sales

Design

Support

Seniority

Senior

Manager

Mid

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About FusionAuth

FusionAuth is a privately held CIAM (Customer Identity and Access Management) platform founded in 2009 and based in Broomfield, Colorado. The product is downloadable and supports hybrid deployment—both self-hosted and cloud—differentiating it from SaaS-only competitors. The platform serves developers and engineering teams building authentication into applications, with features spanning registration, single sign-on, multi-factor authentication, social login, and authorization. The company employs 51–200 people and is actively hiring across marketing, sales, and engineering in the United States and United Kingdom.

HeadquartersBroomfield, Colorado

Company Size51–200 employees

Founded2009

Hiring MarketsUnited States, United Kingdom

Frequently Asked Questions

What tech stack does FusionAuth use?

FusionAuth is built on Java and JavaScript, uses standard identity protocols (OAuth, OIDC, SAML, mTLS), and supports containerized deployment via Docker and Kubernetes.

Where is FusionAuth headquartered and hiring?

FusionAuth is based in Broomfield, Colorado and actively hiring in the United States and United Kingdom.