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Overview
Senior

Senior Software Engineer, Front End

Confirmed live in the last 24 hours

Flagship Pioneering

Flagship Pioneering

Compensation

$108,000 - $176,000/year

Cambridge, MA USA
On-site
Posted March 1, 2026

Job Description

ABOUT PIONEERING INTELLIGENCE

Pioneering Intelligence builds on Flagship Pioneering’s legacy of founding cutting-edge science and computational ventures, harnessing recent advances in AI, machine learning, and data to accelerate fundamental research and create a portfolio of AI-first companies. As part of Flagship’s integrated model of science, entrepreneurship, and capital, it transforms breakthrough ideas into world-changing companies, elevating the AI advances happening across the ecosystem in human health, sustainability, and beyond.

Position Summary 

We are seeking a Senior Front End Engineer. As a key contributor in this early-stage initiative, you will architect and implement the user experience for a new platform that leverages large language models (LLMs) and AI agents to enhance complex, high-stakes workflows. This is a user-first, AI-augmented product — your work will transform abstract reasoning tasks into intuitive, high-performance tools that empower experts across diverse research domains. You will lead front-end development and collaborate closely with engineers, AI scientists, product designers, and end users. This is a rare opportunity to shape a greenfield product at the intersection of usability, flexibility, and advanced reasoning. 

Key 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.reactnodetypescriptgoawsmachine learningaidevopsdataproduct