Product Engineer - Feature Flags

About the Role

WorkOS Feature Flags is a newer product area providing APIs and UI that enable B2B developers to safely roll out, control, and experiment with features across environments, customers, and regions. This is a greenfield opportunity to build a feature flag system designed specifically for enterprise B2B use cases, where targeting by organization, plan tier, and region is first-class. You will help customers ship confidently, reduce risk, and accelerate their enterprise journey.

What You'll Do

• Design and build APIs and UI for feature flag management across environments, customers, and regions
• Build targeting and segmentation systems for organization-level and user-level flags
• Design rollout strategies (percentage-based, canary, ring deployments) for enterprise customers
• Build evaluation engines that handle high-throughput, low-latency flag checks
• Create intuitive dashboards for flag lifecycle management and experimentation
• Collaborate with a small, high-agency team to define and ship the product from early stages

What We Look For

• 5+ years of industry software development experience
• Experience with TypeScript, React, and Postgres
• Experience building or working extensively with feature flag platforms (LaunchDarkly, Split, Statsig, etc.)
• Understanding of progressive rollout patterns, A/B testing, and experimentation
• Comfort with performance-sensitive systems (flag evaluation at scale)
• Strong product sensibility and developer experience intuition
• Experience in B2B SaaS or developer tools is a plus
• Familiarity with SDK design and client-side/server-side evaluation patterns is a plus

About WorkOS

WorkOS provides the developer infrastructure behind modern enterprise-ready software. Their APIs power authentication, SSO, directory sync, and more for companies like OpenAI, Vercel, Cursor, Perplexity, and Webflow. The team is 100+ builders, remote-first across USA time zones. WorkOS raised $80M in Series B funding (led by Greenoaks, with Lightspeed Ventures and notable angels including Guillermo Rauch). Founded in 2020, they reached 200+ paying customers within two years.

Tech Stack

TypeScript, React, Node.js, Postgres, REST APIs with SDKs in Node.js, Ruby, Python, Go, PHP, Java, and .NET.

Benefits

• Medical, dental, and vision insurance
• 401k with 3% employer match
• 20 days paid vacation
• 12 weeks parental leave
• Monthly fitness and wellness stipends
• Home office stipend

Work Style

Remote-first, USA time zones.