Principle React Developer (Lead React Developer)

SGS Consulting; Boston (MA); On-site; USD 150,000 - 190,000; Full time

Job summary

SGS Consulting is seeking a senior frontend architect to lead the design and development of enterprise web applications. You will establish engineering standards, implement reusable patterns, and drive performance, security, and reliability across squads.

You will collaborate with UX designers to create accessible, responsive experiences using Figma and design systems. Strong focus on mentoring, architecture reviews, and delivering scalable solutions at scale.

Qualifications

• Bachelor's degree or equivalent practical experience in CS/Engineering or related field.
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Responsibilities

• Lead frontend architecture and development using ReactJS and TypeScript.
• Define engineering standards, reusable patterns, code quality practices, and technical guardrails.
• Partner with UX designers to deliver intuitive, responsive, and accessible experiences using Figma and shared design systems.
• Integrate applications with REST and GraphQL APIs, including Node.js backend-for-frontend services where appropriate.
• Drive CI/CD, automated testing, observability, performance, security, and production reliability.
• Resolve complex technical issues and proactively manage technical debt.
• Mentor engineers through technical coaching, architecture reviews, and code reviews.
• Collaborate with global product, architecture, platform, and business teams to deliver enterprise digital solutions.

Skills

ReactJS

TypeScript

JavaScript

HTML5

CSS3

Component architecture

State management

Agile

Education

Bachelor's degree in Computer Science, Engineering, or related field

Tools

Next.js

Azure

Terraform

GitHub Actions

Docker

Kubernetes

Azure DevOps

Job description

Job Responsibilities:

• Lead frontend architecture and development using ReactJS and TypeScript.
• Define engineering standards, reusable patterns, code quality practices, and technical guardrails.
• Partner with UX designers to deliver intuitive, responsive, and accessible experiences using Figma and shared design systems.
• Integrate applications with REST and GraphQL APIs, including Node.js backend-for-frontend services where appropriate.
• Drive CI/CD, automated testing, observability, performance, security, and production reliability.
• Resolve complex technical issues and proactively manage technical debt.
• Mentor engineers through technical coaching, architecture reviews, and code reviews.
• Collaborate with global product, architecture, platform, and business teams to deliver enterprise digital solutions.

Skills:

• Advanced expertise in ReactJS, TypeScript, JavaScript, HTML5, CSS3, component architecture, and state management.
• Experience delivering enterprise-scale web applications with strong knowledge of performance, scalability, accessibility, and secure development.
• Experience integrating REST and/or GraphQL APIs. Working knowledge of Node.js is preferred.
• Hands‑on experience with CI/CD, Git, automated testing, and modern DevOps practices.
• Ability to influence technical decisions, communicate clearly, and lead teams in an Agile environment.

Education/Experience:

• Experience with Next.js, micro-frontends, monorepos, design systems, or reusable component libraries.
• Experience with Azure, Azure DevOps,Terraform, GitHub Actions, Docker, or Kubernetes.
• Strong product mindset and ability to balance user experience, technical quality, business value, and delivery speed.
• Bachelor's degree in computer science, Engineering, or a related field, or equivalent practical experience