React Developer Jobs in San Jose, CA

Role description

Frontend Engineer

Lead I - Software Engineering

Who We Are:

Born digital, UST transforms lives through the power of technology. We walk alongside our clients and partners, embedding innovation and agility into everything they do. We help them create transformative experiences and human-centered solutions for a better world.

UST is a mission-driven group of 29,000+ practical problem solvers and creative thinkers in more than 30 countries. Our entrepreneurial teams are empowered to innovate, act nimbly, and create a lasting and sustainable impact for our clients, their customers, and the communities in which we live.

With us, you’ll create a boundless impact that transforms your career—and the lives of people across the world.

Visit us at UST.com.

You Are:

We're looking for a passionate Frontend Engineer with a strong UI/UX focus to help us build intuitive and impactful user experiences for these critical internal tools, working on projects visible up to the CIO level.

The opportunity:

• Design, develop, test, and maintain high-quality, responsive user interfaces and components using React, TypeScript, and Customer React Spectrum.

• Collaborate closely with product managers, business stakeholders, backend engineers, and users to translate requirements and feedback into effective frontend solutions.

• Take ownership of the user experience, applying UI/UX best practices, proposing design improvements, and implementing solutions even when detailed mockups are not provided.

• Write robust unit tests for your code using frameworks like Vitest, and contribute to establishing and maintaining end-to-end testing practices (e.g., using Cypress or Playwright).

• Integrate frontend components with backend REST APIs, understanding authentication flows like OAuth.

• Actively participate in Agile/Scrum ceremonies, including sprint planning, daily stand-ups, code reviews, and retrospectives.

• Contribute to frontend architecture discussions, justifying design choices and helping implement scalable and maintainable solutions.

• Utilize Git for version control, following team branching and pull request workflows.

This position description identifies the responsibilities and tasks typically associated with the performance of the position. Other relevant essential functions may be required.

What you need:

• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.

• 5+ years of professional software development experience, with a strong focus on frontend development.

• Proven expertise in building complex web applications using React and TypeScript.

• Strong proficiency in modern JavaScript (ES6+), HTML5, and CSS3.

• Experience with state management libraries (e.g., Zustand, Redux, MobX) and the ability to adapt to existing patterns.

• Demonstrated experience with component libraries, particularly Customer React Spectrum or similar systems.

• Solid understanding of responsive design principles and experience

Compensation can differ depending on factors including but not limited to the specific office location, role, skill set, education, and level of experience. UST provides a reasonable range of compensation for roles that may be hired in various U.S. markets as set forth below.

Role Location: Remote

Compensation Range: $82,000-$125,000

Benefits

Full-time, regular employees accrue a minimum of 10 days of paid vacation per year, receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year), 10 paid holidays, and are eligible for paid bereavement leave and jury duty. They are eligible to participate in the Company’s 401(k) Retirement Plan with employer matching. They and their dependents residing in the US are eligible for medical, dental, and vision insurance, as well as the following Company-paid Employee Only benefits: basic life insurance, accidental death and disability insurance, and short- and long-term disability benefits. Regular employees may purchase additional voluntary short-term disability benefits, and participate in a Health Savings Account (HSA) as well as a Flexible Spending Account (FSA) for healthcare, dependent child care, and/or commuting expenses as allowable under IRS guidelines. Benefits offerings vary in Puerto Rico.

Part-time employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year) and are eligible to participate in the Company’s 401(k) Retirement Plan with employer matching.

Full-time temporary employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year) and are eligible to participate in the Company’s 401(k) program with employer matching. They and their dependents residing in the US are eligible for medical, dental, and vision insurance.

Part-time temporary employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year).

All US employees who work in a state or locality with more generous paid sick leave benefits than specified here will receive the benefit of those sick leave laws.

What we believe:

We proudly embrace the values that have shaped UST since day one. We build our culture of Humility, Humanity, and Integrity. These values inspire us to nurture a people-first, human centric culture that fosters belonging, prioritizes sustainable solutions, and keeps our people and clients at the forefront of all decisions.

Humility:

We will listen, learn, be empathetic and help selflessly in our interactions with everyone.

Humanity:

Through business, we will better the lives of those less fortunate than ourselves.

Integrity:

We honor our commitments and act with responsibility in all our relationships.

Equal Employment Opportunity Statement

UST is an Equal Opportunity Employer.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other applicable characteristics protected by law. We will consider qualified applicants with arrest or conviction records in accordance with state and local laws and “fair chance” ordinances.

UST reserves the right to periodically redefine your roles and responsibilities based on the requirements of the organization and/or your performance.

#UST

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#LI-VB1

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Skills

Html Javascript,React,Zustand

Benefits
Compensation range: $82,000.00 to $125,000.00 per year
About UST
UST is a global digital transformation solutions provider. For more than 20 years, UST has worked side by side with the world’s best companies to make a real impact through transformation. Powered by technology, inspired by people and led by purpose, UST partners with their clients from design to operation. With deep domain expertise and a future-proof philosophy, UST embeds innovation and agility into their clients’ organizations. With over 30,000 employees in 30 countries, UST builds for boundless impact—touching billions of lives in the process.