Lead UI Developer with React and Gen AI

Ethereum Technologies LLC; Austin, Northern (TX, KY); Hybrid; USD 150,000 - 190,000; Full time

Job summary

Ethereum Technologies LLC is seeking a senior frontend engineer to design and implement dynamic user interfaces using React.js, HTML, CSS, and TypeScript. The role emphasizes collaboration within a large development team, adherence to best practices across the Software Development Life Cycle, and strong skills in performance optimization and modern web technologies.

The ideal candidate has hands-on experience delivering systems, testing, and ensuring operational stability, with a focus on memory

Qualifications

• Formal training or certification on software engineering concepts.
• 10+ years applied experience.
• Hands-on frontend development with React.js.
• Deep expertise of HTML, CSS, JS, React, Typescript, and state management.
• Experience working on a large team of developers.
• Proficiency across the Software Development Life Cycle and Agile practices.
• Advanced understanding of agile methodologies such as Application Resiliency and Security.
• Hands-on experience delivering system design, application development, testing, and operational stability.
• Solid understanding of memory and performance bottlenecks debugging.
• Knowledge of Generative AI and cutting-edge web technologies.
• Proficient with CLI, git workflow, and CI/CD.
• Hands-on with Jest / Vitest and React Testing Library.

Responsibilities

• Collaborate effectively in a team to contribute technically and communicate clearly.
• Deliver high-quality frontend components and UI using React.
• Contribute to code reviews and testing to maintain stability.
• Work across the SDLC with Agile methodologies and best practices.
• Address memory and performance bottlenecks to optimize applications.

Skills

Application Design

Frontend Development

React.js

HTML/CSS/JS

Typescript

Team Collaboration

SDLC & Agile

CI/CD

Jest/Vitest

Education

Software Engineering Certification

10+ years experience

Tools

Jest

Vitest

React Testing Library

Git & CLI

CI/CD Pipelines

Job description

• A strong understanding of Application Design is essential, along with the ability to thrive in a team environment through exceptional technical contributions, communication, and collaboration
• A firm understanding of Application Design is required for this role, along with the ability to excel in a team through outstanding technical contributions, communication, and partnership
• Formal training or certification on software engineering concepts and 10+ years applied experience
• Hands on Frontend Development experience utilizing React.js to make dynamic user interfaces
• Deep expertise of HTML, CSS, and JS, React, Typescript, and state management
• Experience working on a large team of developers in a developing, debugging, and maintaining code
• Proficient in all aspects of the Software Development Life Cycle, including knowledge of industry standard software best practices, development lifecycle processes and Agile tools and methodologies
• Advanced understanding of agile methodologies such as Application Resiliency, and Security
• Hands-on practical experience delivering system design, application development , testing, and operational stability
• Solid understanding of improving and debugging memory and performance bottlenecks
• Strong knowledge in Generative AI and cutting-edge web technologies
• Experienced in using the CLI, git workflow, and CI / CD
• Hands on experience with Jest / Vitest and React Testing Library

ETHEREUM TECHNOLOGIES LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion, transfer, compensation, benefits, discipline, termination and all other employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, citizenship/immigration status, veteran status or any other protected status. ETHEREUM TECHNOLOGIES LLC will not make any posting or employment decision that does not comply with applicable laws relating to labor and employment, equal opportunity, employment eligibility requirements or related matters. Nor will ETHEREUM TECHNOLOGIES LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment except as necessary to comply with law, regulation, executive order, or federal, state, or local government contract