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# Lead JavaScript Engineer

- **Company:** Excella Co
- **Location:** Arlington, VA, United States
- **Experience:** Expert
- **Salary:** $138,000.0 - $189,000.0
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, JavaScript (Programming Language), Agile Methodology, Automation of Tests, Code Review, Continuous Delivery, DevOps, Node.Js, NoSQL, Productivity Software, Selenium, Software Engineering, SQL Databases, TypeScript, Vagrant, Web Content Accessibility Guidelines, Trunk-based Development, GitHub Copilot, ReactJS, Express.js, Cypress (Programming Language), Puppeteer (Software), AngularJS, Git Flow, Claude, React Testing Library, Teamcity, Puppet, Restful APIs, TravisCI, GPT, Jenkins
- **Published:** October 29, 2026
- **Apply:** https://www.excella.com/careers/apply/4748628005

## About the Role

* 6+ years of experience in software development, with a strong technical foundation.
 * Expertise in JavaScript, TypeScript, and experience with frameworks such as Angular or React.
 * Experience working within Web Content Accessibility Guidelines to ensure optimum accessibility standards are met for users
 * Proficiency working with automated test suites such as Jest and React Testing Library
 * Experience with E2E test frameworks including Cypress, Puppeteer, and Selenium
 * Deep understanding of Agile methodologies and best practices.
 * Experience leading teams and mentoring developers in a consulting or technical environment.
 * Strong knowledge of RESTful API design and implementation.
 * Proficiency in Git-based workflows and software development lifecycle management.
 * Excellent problem-solving and critical-thinking skills.
 * Ability to communicate complex technical concepts to both technical and non-technical stakeholders.
 * Knowledge in implementing secure programming practices
 * Experience working with server-side JavaScript environments and frameworks such as Node and Express.js
 * Experience in full-stack development including asynchronous, parallel, and non-blocking programming techniques

Preferred Qualifications:

 * Understanding of SQL, NoSQL and/or Document-based storage systems
 * Understanding of trunk-based development practices such as using feature flags
 * Knowledge in instrumenting an application for observability
 * Experience with DevOps and Continuous Delivery tools like Jenkins, Codeship, TeamCity, Vagrant, Puppet, Chef, TravisCI, GoCD or similar
 * Familiarity using GenAI productivity tools such as ChatGPT, Claude, and Github CoPilot

## Description

As a Lead Consultant at Excella, you will not only develop high-quality software solutions but also provide technical leadership and mentorship to team members. You will guide project execution, ensuring alignment with client needs while upholding best practices in software development. Your ability to communicate effectively and lead within an Agile environment will be crucial to delivering impactful solutions., * Lead the design and development of software solutions for commercial and government clients using JavaScript, TypeScript, and Node.

 * Provide mentorship and technical guidance, fostering professional growth within the team.
 * Collaborate closely with clients and stakeholders to align technical solutions with business objectives.
 * Ensure best practices in coding, architecture, and Agile methodologies are followed.
 * Conduct code reviews and provide constructive feedback to maintain high code quality.
 * Advocate for the adoption of emerging technologies to enhance project outcomes.
 * Drive continuous improvement initiatives across teams and projects.