React Developer Job at American Unit, Inc., San Leandro, CA

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  • American Unit, Inc.
  • San Leandro, CA

Job Description

Immediate hiring!!

Job Title: Senior React Developer

Location: San Leandro, CA (Onsite) Locals only

ONLY for W2 Candidates

Role Overview

We're seeking a Senior React Developer with a strong programming background to lead the design and implementation of high-quality, performant front-end applications. You will shape UI architecture, mentor engineers, and collaborate closely with product, design, and backend teams to deliver resilient, accessible, and scalable user experiences.

Key Responsibilities

  • Lead front-end architecture and develop complex, reusable React components and hooks.
  • Drive state management patterns (e.g., Redux) and ensure predictable data flows in large applications.
  • Integrate REST APIs, handle JSON payloads, and optimize network interactions.
  • Enforce coding standards, conduct code reviews, and improve test coverage with Jest/React Testing Library/Enzyme.
  • Partner with designers to implement responsive, accessible UIs using HTML5, CSS3/SASS, and component libraries (e.g., Material UI/React Bootstrap).
  • Champion performance and accessibility best practices; instrument and debug with modern browser tools.
  • Collaborate in Agile ceremonies; help define stories, acceptance criteria, and release plans.

Required Qualifications

  • 6 10+ years of professional software development, with 4+ years focused on React.js at scale.
  • Expert-level JavaScript/TypeScript and deep knowledge of ES6+ patterns and React internals. ,
  • Proven experience with Redux , component composition, custom hooks, and performance optimization. ,
  • Strong front-end engineering fundamentals: semantic HTML, modern CSS, responsive design, and accessibility (WCAG/ADA).
  • Hands-on testing experience (unit, integration, E2E) with Jest/RTL/Enzyme ; CI integration. ,
  • Proficiency with Git and common workflows; comfort with Agile/Scrum delivery.

Preferred Qualifications

  • Familiarity with Next.js , charting/grid libraries (e.g., agGrid , Recharts/Highcharts ), and modern build tooling.
  • Experience collaborating with cross-functional teams in regulated or enterprise environments.

Work Conditions

  • Location: Onsite at San Leandro, CA .
  • Occasional flexibility may be required for cross-time-zone collaboration and release milestones.

Nice-to-Have (Domain)

  • Experience in banking/financial services or other enterprise-grade platforms is a plus (helps with stakeholder expectations and compliance).

Please share resume at Crystal@americanunit.com

Job Tags

Local area, Immediate start,

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