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Mintlify is a documentation platform serving 100+ million developers annually and powering docs for 20,000+ companies including Anthropic, Microsoft, PayPal, Spotify, Coinbase, and X. The company recently raised $45M Series B led by A16Z and Salesforce Ventures and is scaling from 65 employees.
As a Senior Product Engineer, you'll build polished, customer-facing features that solve real problems for developers and companies. You'll own the full lifecycle of features—from architecture through launch—collaborating closely with design and engineering teams. Your work will span complex technical challenges like optimizing virtualized rendering, architecting content management systems, and enhancing application performance at scale.
You'll drive user experience refinements that transform working code into great products, contribute to product and technical decisions, and help shape the engineering approach across the stack. The role emphasizes high ownership: you'll define solutions rather than follow specs, talk directly with customers to inform what gets built, and have a voice in strategic decisions.
The engineering team values craft, speed, and thoughtful execution. Recent projects include building a virtual filesystem for an AI assistant, a collaborative editor for teams and agents, and benchmarking documentation formats for LLM compatibility. You'll have plenty of heads-down builder time on a small, high-impact team where the best ideas win.
REQUIREMENTS:
- 4+ years of software development experience
- Strong technical "spike" in either:
- Frontend: React, Next.js, TypeScript, component architecture, state management, rendering performance
- Backend: Systems design, API architecture, database optimization
- Strong product intuition; care about the "why" as much as the "how"
- Adaptability and willingness to jump across the stack to ship features
- High ownership mentality; thrive when defining solutions
- Eagerness to engage directly with customers and use insights to shape product direction
