Senior Software Engineer (Identity)

Thrive Global is hiring a Senior Software Engineer for its Identity team to build and operate the systems supporting sign-up, authentication, and identity across its products. The role owns the enterprise identity platform, delivers projects in partnership with Product and stakeholders, and supports reliability and incident response.

Responsibilities:

• Own and evolve the enterprise identity platform end-to-end — Design, build, and ship the software that onboards, authenticates and authorizes users to the entire Thrive ecosystem. Partner with internal teams to provide the tools & systems to manage a users’ identity and enable the mission of Thrive
• Independently scope and deliver medium-to-large projects — take an ambiguous problem, break it into well-sized workstreams, sequence the work, and drive it to completion with minimal hand-holding
• Partner closely with Product and stakeholders — translate business requirements into technical plans, surface trade-offs early, and keep cross-functional partners informed throughout delivery
• Set a high bar for quality without sacrificing pace — bring a bias to ship and iterate fast, balanced with the craft and judgment to avoid costly shortcuts
• Support reliability and incident response — provide on-call and incident support during US working hours to keep the platform healthy and customers supported

Requirements:

• Hands-on experience with standards-based identity protocols: OAuth 2.0, OIDC, SAML, and SCIM provisioning
• Experience integrating with enterprise identity providers (Okta, Entra ID, Ping or similar) and debugging customer SSO configurations in production
• Familiarity with session management, token lifecycle, and secure credential handling at scale
• Experience building software in security-sensitive or regulated environments (SOC 2, HIPAA, or equivalent)
• Bachelor's degree from an accredited college or university required
• Senior-level engineering experience with a track record of owning production systems end-to-end
• Strong Java/Kotlin, ideally full-stack with TypeScript, with experience balancing sustaining engineering (reliability, scalability, technical debt) against net-new feature delivery
• Experience building and supporting B2B / enterprise-facing software
• Demonstrated ability to independently scope and deliver medium-to-large projects, from ambiguous problem to shipped solution
• Experience with on-call rotations and incident response