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# Software Engineer - Frontend (Staff+)

- **Company:** Cogent Inc
- **Location:** San Francisco, CA, United States
- **Experience:** Expert
- **Salary:** $100,000.0 - $300,000.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Data Analysis, Software Quality, Design of User Interfaces, Human-Computer Interaction, Integrated Library Systems, Internet Security, Performance Tuning, Software Engineering, TypeScript, Web Applications, ReactJS, Material UI, Build Tools, Front End Software Development
- **Published:** October 27, 2026
- **Apply:** https://www.careerbuilder.com/job-details/software-engineer-frontend-staff-san-francisco-ca--14459029-a219-4b6b-8323-0e415b14e48e

## About the Role

Software Engineering, User Interface/Experience (UI/UX), Computer Hacking, Artificial Intelligence (AI), Data Analysis, Fortune 500 Customers, Production Systems, Team Lead/Manager, Unicorn Library Management System, Internet Security, * Have operated at Staff+ level (Staff, Senior Staff, or Principal Frontend Engineer) at some point in your career.

 * 5+ years of professional software engineering experience
 * Deep expertise in React, TypeScript, and modern web application architecture.
 * Strong background in frontend infrastructure-component libraries, build systems, state management, and performance optimization.
 * Demonstrated ability to work autonomously, owning projects end-to-end with minimal oversight
 * Exceptional attention to detail and a passion for engineering craftsmanship.
 * Excellent collaboration and communication skills; thrive in fast-paced, high-impact environments.

## Description

As a Staff Frontend Engineer, you will own the frontend platform and experience that enables customers to visualize, understand, and act on complex security data with confidence.

This is a Staff+ caliber role: you've operated at least at Staff, Senior Staff, or Principal Frontend Engineer level at some point in your career, and you're excited to set the technical direction for a brand-new platform. You will design the frontend infrastructure, build "golden" component libraries, and make the platform AI-friendly, all while continuing to ship customer-facing features.

You'll combine deep architectural thinking with hands-on development, ensuring that our frontend stack is both elegant and resilient as we scale. Over time, you'll help mentor other frontend engineers and we will build a team around the foundations you create., * Define Frontend Architecture - Establish the core architecture and patterns for our web applications, laying the foundation for long-term scalability and performance.

 * Build Golden Libraries & Platform - Create reusable component libraries and tooling that set the standard for quality and enable rapid, consistent development across the team.
 * Build AI-Driven, User-Focused Features - While setting up core frontend infrastructure, design and deliver high-impact features that seamlessly integrate AI-powered capabilities, ensuring clarity, usability, and reliability for complex security workflows.
 * Mentor and Influence - Serve as a mentor and technical leader for future frontend engineers; help us grow a team that values craftsmanship and excellence.
 * Drive Engineering Craftsmanship - Uphold high standards of code quality, attention to detail, and thoughtful design. Balance speed with sustainable engineering practices.