Frontend Developer

Lucky Rabbit LLC

Frontend Engineer enhancing the ConX platform with modern JavaScript and Ruby. Responsible for developing high-quality web applications and collaborating with backend engineers.

Posted 7/27/2026full-timeWashington • District of Columbia, Washington • 🇺🇸 United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in frontend development with a strong focus on JavaScript, Vite, and building accessible web applications. Proficient in collaborating with cross-functional teams to deliver high-performance user experiences while adhering to best practices in coding and design.

Highest-signal resume keywords

JavaScript (ES6+)ViteEmber.jsWeb Components DevelopmentAccessibility Standards (WCAG)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Frontend DevelopmentHTML5CSS3Responsive DesignRESTful APIsPerformance OptimizationGitTypeScriptFrontend Testing FrameworksCI/CD Pipelines

Soft Skills

Analytical SkillsProblem-SolvingCommunication Skills

Industry Keywords

Agile DevelopmentScrumComponent LibrariesDesign SystemsCore Web Vitals

Tech Stack

Tools & technologies

Ember.jsJavaScriptRubyTypeScript

About the role

Key responsibilities & impact

Design, develop, and maintain responsive, high-performance web applications.
Build reusable, standards-based web components using modern JavaScript.
Develop frontend applications using Vite as the primary build tool.
Collaborate with backend engineers to integrate Ruby-based services and APIs.
Ensure applications meet accessibility (WCAG) standards and follow best practices.
Optimize application performance, maintainability, and browser compatibility.
Participate in code reviews and contribute to architecture and engineering best practices.
Work closely with Product, UX, and Engineering teams to deliver intuitive user experiences.
Troubleshoot and resolve frontend issues across multiple browsers and devices.

Requirements

What you’ll need

3+ years of professional frontend development experience.
Strong proficiency in JavaScript (ES6+).
Hands-on experience with Vite.
Ember.js
Lit
Experience building applications using vanilla JavaScript.
Experience developing Web Components.
Working knowledge of Ruby and experience integrating with Ruby-based applications.
Strong understanding of HTML5, CSS3, and responsive design.
Experience consuming RESTful APIs.
Knowledge of accessibility standards (WCAG) and building accessible user interfaces.
Experience using Git in a collaborative development environment.
Strong analytical, problem-solving, and communication skills.
Preferred Qualifications
Experience with one or more of the following:
TypeScript
Component libraries or design systems
Frontend testing frameworks
Performance optimization and Core Web Vitals
CI/CD pipelines
Agile/Scrum development methodologies

Benefits

Comp & perks

Health Insurance
Paid Time Off
Dental Insurance
401k