Front-End Engineer II

Front-End Engineer II

Our client seeks a Front-End Engineer II to build and enhance single page applications that support internal systems and user-facing experiences. The role partners with front-end developers, API engineers, designers, and product owners, and contributes to component libraries, testing, accessibility, and code standards. The engineer will mentor associate engineers and interns, work within a scrum team, and apply strong JavaScript fundamentals with React and modern tooling. The environment emphasizes analytics, experimentation, and practical use of AI for development workflows and feature delivery.

This is a full-time, permanent opportunity, offering a competitive salary and comprehensive benefits package. Qualified applicants must be willing and able to work on a W2 basis.

Salary: $110,000 - $120,000/ yr. W2

Responsibilities:

• Develop mobile-first single page applications, primarily with Ember.js, for various devices and environments.
• Convert mockups and wireframes into clean, maintainable, reusable components.
• Maintain and extend JavaScript code and legacy plugins.
• Validate and test for Section 508 accessibility and cross-browser, platform, and device compatibility.
• Lint, evaluate, and unit test JavaScript.
• Write clean, reusable code that adheres to published standards.
• Assist with discovery and diagnosis of bugs in development environments.
• Participate in front-end and scrum team ceremonies.
• Maintain code libraries and document technical specifications.
• Research solutions and contribute to code standards and reviews.
• Mentor associate front-end engineers and interns.

Experience Requirements:

• 3+ years developing and architecting single page applications with a modern JavaScript framework such as Ember, React, Angular, or Vue, integrating RESTful or JSON APIs.
• Demonstrated mobile-first, responsive design implementation.
• Strong skills in HTML, CSS, and JavaScript with emphasis on vanilla JS fundamentals.
• Experience creating reusable components or libraries across applications.
• 1+ year with ES2015+ and Node.js.
• Experience with Gulp.js or similar build tools.
• Experience writing unit, integration, and acceptance/UI tests.
• Experience working in an agile scrum environment.
• Comfort using AI tools as part of development workflows and for solution exploration.
• Proficiency with React for modern feature development and migration from Ember where applicable. No backend work required.

Education Requirements:

• Bachelor's degree in computer science, human-computer interaction, or a related field, or equivalent experience. High school diploma required.

Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range. W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.