SlipstreamJobs tracks this role from the company's public career site. Apply directly on the employer's site.
Salary: USD 170,000 - 200,000 / annual
Thrive Global is a behavior change technology company founded by Arianna Huffington in 2016, with a mission to improve productivity and health outcomes through AI-powered microsteps. The company serves over 230 organizations across 160+ countries.
As a Senior Software Engineer on the Identity team, you will own and evolve the enterprise identity platform end-to-end. You'll design, build, and ship the software that onboards, authenticates, and authorizes users across the entire Thrive ecosystem. This is a high-impact role with real ownership from day one—your work is the front door for employees at 200+ enterprise customers when they sign in.
Key responsibilities include:
- Own and evolve the enterprise identity platform end-to-end, designing and shipping software for onboarding, authentication, and authorization
- Independently scope and deliver medium-to-large projects, breaking ambiguous problems into well-sized workstreams and driving them to completion with minimal hand-holding
- Partner closely with Product and stakeholders to translate business requirements into technical plans, surface trade-offs early, and keep cross-functional partners informed
- Set a high bar for quality without sacrificing pace—ship and iterate fast while avoiding costly shortcuts
- Provide on-call and incident support during US working hours to keep the platform healthy and customers supported
The environment is fast-moving and lean, requiring pragmatism and startup speed balanced with engineering craft. You'll work with an Ireland-based team, so meaningful daily overlap with US Eastern business hours plus availability for that overlap is essential.
REQUIREMENTS:
- BA/BS degree or relevant work experience
- 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
- Meaningful daily overlap with US Eastern business hours, plus availability for overlap with Ireland-based team
- 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)
