Flagship Pioneering, Inc. - Senior Software Engineer, Front End
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Requirements
• B.S. in Computer Science, Engineering, or related field, with 6+ years of professional software development experience. • 6+ years • Expertise with modern front-end frameworks and tools, including React.js, TypeScript, Tailwind CSS, Redux Toolkit, Playwright, and Shadcn. • React.js, TypeScript, Tailwind CSS, Redux Toolkit, Playwright, and Shadcn. • Strong experience with Node.js. • Node.js • Skilled in writing and maintaining comprehensive test suites (Jest, React Testing Library, Cypress). • Jest, React Testing Library, Cypress • Experience with system design, performance optimization, observability, and operational excellence for parallel LLM workloads. • Strong intuition for UX design and a passion for building intuitive, workflow-first products. • Excellent communication skills and a collaborative mindset in fast-moving, cross-functional environments. • Background in scientific domains such as biology, chemistry, or complex systems (a plus, not required).
Responsibilities
• Architect, develop, and maintain high-quality, testable front-end code and workflows aligned with complex scientific and analytical use cases. • Translate user stories, wireframes, and prototypes into production-ready features emphasizing clarity, maintainability, and reusability. • Implement responsive, accessible, and performant UIs optimized for data-rich, interactive workflows. • Ensure security, scalability, and observability of front-end services in cloud environments (AWS). • Design and implement user interfaces from scratch, combining strong visual design with robust engineering. • Create and maintain scalable, consistent, and visually appealing UI components using a modern React.js stack. • React.js • Maintain front-end quality through comprehensive testing and validation of user flows and interface behavior. • Develop and maintain test suites (unit, integration, and end-to-end) for UI reliability. • DevOps/GitOps • Mentor engineers and scientists, driving technical quality and ensuring extensibility and performance across evolving use cases.
Benefits
• By joining this initiative within Flagship’s Pioneering Intelligence group, you will: • Help define a new category of intelligent software tools for real-time human–AI collaboration. • new category of intelligent software tools • Build a greenfield product at the intersection of usability, reasoning, and scientific innovation. • greenfield product • Collaborate with visionary thinkers and top-tier researchers across Flagship’s ecosystem. • visionary thinkers and top-tier researchers • Thrive in a supportive, mission-driven culture with access to world-class technical and operational resources. • supportive, mission-driven culture • Shape the future of AI-powered discovery in a role that combines engineering excellence with health impact. • future of AI-powered discovery • Flagship Pioneering invents and builds platform companies, each with the potential for multiple products that transform human health, sustainability and beyond. Since its launch in 2000, Flagship has originated more than 100 companies. Many of these companies have addressed humanity’s most urgent challenges: vaccinating billions of people against COVID-19, curing intractable diseases, improving human health, preempting illness, and feeding the world by improving the resiliency and sustainability of agriculture. • Flagship has been recognized twice on FORTUNE’s “Change the World” list, an annual ranking of companies that have made a positive social and environmental impact through activities that are part of their core business strategies and has been twice named to Fast Company’s annual list of the World’s Most Innovative Companies. Learn more about Flagship at www.flagshippioneering.com. • At Flagship, we accept impossible missions to enable bigger leaps. Our core values guide us through uncertainty and toward lasting impact.
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