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Blitzy is an AI software development platform headquartered in Cambridge, MA, on a mission to revolutionize the software development lifecycle by autonomously building custom software. The company's agentic platform can autonomously execute 80% of software development work, transforming how enterprises build software. Backed by tier-1 investors and founded by experienced entrepreneurs, Blitzy is one of the fastest-growing companies in the U.S., serving Fortune 500 customers.
We are seeking a Senior Frontend Engineer to join as a technical leader and primary individual contributor. This role is hands-on, focused on developing our cutting-edge AI-powered platform. You will work directly with product and design teams to build sophisticated, responsive, and intuitive interfaces that make complex AI capabilities accessible to users.
Key responsibilities include:
- Spend 70%+ of time writing high-quality code and solving complex technical challenges
- Architect and implement sophisticated frontend solutions handling complex state management, real-time updates, and evolving product needs
- Own frontend architecture and technical decision-making, balancing immediate requirements with long-term scalability
- Create responsive, performant interfaces optimized across devices and browsers, continuously monitoring frontend performance
- Collaborate with designers to implement pixel-perfect UIs and evolve the component library and design system
- Maintain high standards for code quality, performance, testing, and frontend development best practices
- Lead code reviews and establish frontend engineering standards while mentoring two frontend engineers
- Evaluate and introduce new technologies, tools, and build-system improvements
- Partner with backend teams to design and implement APIs enabling rich frontend functionality
- Own the core product interface and user experience from a frontend engineering perspective
The company culture emphasizes moving fast, championship mindset, passion for invention, and customer focus. You'll work in a collaborative, in-person environment with a team operating like a professional sports team.
QUALIFICATIONS:
- 10+ years of frontend development experience with expert-level knowledge of modern JavaScript/TypeScript
- Deep expertise in React.js and its ecosystem, including state management approaches (Redux, MobX, or similar)
- Experience with modern build tools (Webpack, Vite, etc.) and frontend testing frameworks and methodologies
- Proven track record of building complex, production-grade, responsive applications with strong cross-browser compatibility
- Strong understanding of web performance optimization
- Background in building developer tools or AI-powered applications is a plus
