Lead Node.JS Developer (Direct Client)

Role: Lead Full Stack Engineer

Location: Cambridge, MA

Duration: Long Term

Role Summary

We are seeking a highly experienced Senior / Lead Full Stack Engineer to deliver enterprisegrade, cloudnative applications in a regulated environment. 

The ideal candidate can operate independently, own solutions endtoend, and contribute immediately in complex production environments.

Key Responsibilities

• Design and build full stack solutions across UI, backend services, APIs, and data layers.
• Lead technical design and solution architecture, translating business requirements into scalable systems.
• Develop modern, componentbased frontend applications with strong focus on performance, usability, and accessibility.
• Design and operate cloudnative architectures, including containers, scalability, resiliency, and performance optimization.
• Build and maintain CI/CD pipelines, infrastructure as code, and automated testing.
• Own production support, troubleshooting, rootcause analysis, and operational improvements.
• Integrate AI/ML capabilities via APIs with appropriate controls, monitoring, and evaluation gating.
• Embed security, compliance, and audit requirements into application design and implementation.
• Collaborate with product, data, AI, platform, and risk teams to deliver productionready solutions.

Required Skills & Experience

• 10+ years of experience delivering enterprise full stack applications with production ownership.
• Strong handson expertise in:
• Frontend: React, JavaScript/TypeScript, HTML5, CSS3
• Backend: Node.js; exposure to Python and/or Java
• APIs: RESTful service design and integration
• Handson experience with containers (Kubernetes or managed container services).
• Solid DevOps skills: CI/CD pipelines, infrastructure as code, automated testing, release management.
• Strong knowledge of SQL and NoSQL databases, data modeling, and efficient access patterns.
• Experience integrating AI/ML services into applications via APIs and orchestration layers.
• Strong understanding of secure coding, IAM, audit logging, and data protection in regulated environments.
• Proficiency with Git and collaborative development practices (code reviews, design reviews).