Frontend Engineer III — React/TypeScript + AI Tools

B Capital; San Francisco (CA); Hybrid; USD 150,000 - 210,000; Full time

Benefits offered by this job

Health coverage

Paid parental leave

Generous PTO & holidays

Stock options

LinkedIn Learning access

Job summary

6sense is seeking a Software Engineer III – Frontend to join our Engineering team and build modern, scalable web applications. You will collaborate with Product Managers, UX Designers, and Backend Engineers to deliver intuitive, high-impact customer experiences while leveraging AI-powered development tools.

Responsibilities include designing, developing, testing, and maintaining React and TypeScript apps, building reusable UI components, and mentoring junior engineers in a collaborative

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field.
• 4+ years of frontend software engineering experience.
• Strong React.js, TypeScript, JavaScript, HTML5, CSS3 skills.
• Experience with Redux, Context API, or Zustand.
• Experience with REST APIs, testing frameworks, CI/CD, and AI-assisted development tools.
• Strong problem-solving, debugging, and communication skills.
• Preferred: Next.js, design systems, enterprise SaaS, Agile, full-stack experience.

Responsibilities

• Design, develop, test, and maintain React and TypeScript applications.
• Build reusable UI components and contribute to frontend architecture and design systems.
• Collaborate with Product, Design, and Backend Engineering teams.
• Optimize performance, accessibility, scalability, and responsiveness.
• Write clean, maintainable, well-tested code.
• Participate in architecture discussions, code reviews, and mentor junior engineers.
• Contribute across the full stack when needed.
• Leverage AI-powered coding assistants and agentic workflows.
• Troubleshoot production issues and drive continuous improvements.

Skills

React.js

TypeScript

JavaScript

HTML5

CSS3

Redux

Context API

Zustand

AI-assisted development tools

REST APIs

Education

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

Tools

Next.js

CI/CD

AI-powered coding assistants

Job description

6sense is seeking a Software Engineer III – Frontend to join our Engineering team and build modern, scalable web applications. You will collaborate with Product Managers, UX Designers, and Backend Engineers to deliver intuitive, high-impact customer experiences while leveraging AI-powered development tools.

Responsibilities include designing, developing, testing, and maintaining React and TypeScript apps, building reusable UI components, and mentoring junior engineers in a collaborative