Senior JavaScript Engineer

Archer; United States; Hybrid; USD 117,000 - 162,000; Full time

Benefits offered by this job

Flexible work locations

Industry-leading health benefits

Parental leave (8 weeks)

Paid vacation (15 days)

TechEleX devices program

Internet reimbursement

Professional development (3 days/yr)

Wellness & mental health support

Job summary

Excella is seeking a Senior Consultant to deliver high-quality software solutions for commercial and government clients. You will build cutting-edge applications using JavaScript/TypeScript, React, Node.js, and collaborate with clients and teams in an Agile environment to deliver impactful results.

Ideal candidates have 3+ years of web development, strong JavaScript fundamentals, and experience with React or Angular.

Qualifications

• 3+ years of experience developing web applications.
• Strong understanding of core JavaScript, TypeScript, and functional programming fundamentals.
• Experience with JavaScript frameworks such as Angular or React.
• Proficiency in HTML, CSS, and front‑end web design concepts.
• Experience with Web Content Accessibility Guidelines for accessibility.
• Proficiency with automated test suites such as Jest and React Testing Library.
• Experience with RESTful APIs.
• Hands‑on experience with version control tools like Git.
• Familiarity with Agile development practices.
• Strong problem‑solving skills and client‑facing ability.

Responsibilities

• Develop and implement software solutions using technologies such as JavaScript, TypeScript, Node.js, and React.
• Collaborate with clients to understand business requirements and translate them into technical solutions.
• Employ Agile methodologies to deliver high-quality software efficiently.
• Write clean, maintainable, and efficient code while following best practices.
• Stay current with emerging technologies and recommend their adoption where appropriate.
• Participate in code reviews, ensuring high standards for code quality.
• Work independently while contributing to a team-oriented environment.

Skills

JavaScript

TypeScript

Frontend development

React

Angular

HTML/CSS

Web accessibility

Jest

REST APIs

Git

Agile

Client-facing

Tools

Node.js

Express.js

Testing libraries (Jest, RTL)

Cypress/Puppeteer/Selenium

Git

Job description

Archer is collaborating with Excella to connect them with exceptional professionals for this role. Excella is a transformative technology firm that helps organizations unlock new possibilities. We believe the key to helping clients challenge the status quo and reach new heights lies in our talented people. That’s why we’re committed to developing talent and providing opportunities for career growth at every stage. Join our collaborative team dedicated to solving complex problems with sustainable solutions while building your future as a leader. At Excella, you’re empowered to make lasting impact, turning today’s challenges into tomorrow’s mission successes.

Benefits

• Workplace locations look different for everyone. Excellians are a distributed workforce and whether you're working from your home office or a client site, we support a flexible work/life integration regardless of your location.
• We offer top of industry medical, dental, and vision benefits with multiple options to choose from such as an employer-contributed health savings account, infertility coverage, and orthodontia so you can select the plan that works best for you.
• Regardless of what stage of life you’re in, Excella wants to support you. We provide 8 weeks of Parental Leave, discounted pet insurance, and a Care.com membership with 3 back-up emergency child or elder care days annually – all available to you on your first day.
• Starting day one, every employee is bonus eligible and receives 15 days of paid vacation, 6 federal holidays, and 4 floating holidays.
• Doing your best work means having the best tools! Excella’s TechEleX program provides you with multiple options to suit your technology needs. Choose between a variety of Mac or PC devices, and to ensure your hardware remains current, at the end of a 3-year period Excella will replace your existing computer with a new model from the program. Plus, we’ll even give you the original device to keep for your personal use!
• With Excella’s Annual Internet Reimbursement benefit, all employees receive an additional $25 per month to help offset the cost of internet access. This initiative reflects our commitment to supporting you in staying connected and productive, no matter where you work.
• We’ll invest in your career by providing 3 days of paid professional development every year, including an allowance for registration fees to attend classes, conferences, or obtain professional certifications.
• We encourage mindfulness and overall well-being through employee wellness events, a HeadSpace membership, as well as access to TalkSpace and mental health coverage through our medical plans.

Overview

As a Senior Consultant at Excella, you will play a key role in delivering high-quality software solutions for our commercial and government clients. You will leverage your technical expertise to build cutting‑edge applications while working closely with clients and team members in an Agile environment. Your ability to communicate effectively and collaborate will be critical to delivering impactful solutions.

Responsibilities

• Develop and implement software solutions using technologies such as JavaScript, TypeScript, Node.js, and React.
• Collaborate with clients to understand business requirements and translate them into technical solutions.
• Employ Agile methodologies to deliver high-quality software efficiently.
• Write clean, maintainable, and efficient code while following best practices.
• Stay current with emerging technologies and recommend their adoption where appropriate.
• Participate in code reviews, ensuring high standards for code quality.
• Work independently while contributing to a team-oriented environment.

Qualifications

• 3+ years of experience developing web applications.
• Strong understanding of core JavaScript, TypeScript, and functional programming fundamentals.
• Experience with JavaScript frameworks such as Angular or React.
• Proficiency in HTML, CSS, and front‑end web design concepts.
• 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 working with RESTful APIs.
• Hands‑on experience with version control tools like Git.
• Familiarity with Agile development practices.
• Strong problem‑solving skills and ability to work in a client‑facing environment.

Preferred Qualifications

• 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.
• Understanding of SQL, NoSQL and/or Document‑based storage systems.
• Understanding of trunk‑based development practices such as using feature flags.
• Experience with E2E test frameworks including Cypress, Puppeteer, and Selenium.
• Knowledge in implementing secure programming practices.
• 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.

Pay Range

$116,900 - $161,500 USD

Compensation Information

This range represents the minimum and maximum base salary that Excella reasonably and in good faith expects to pay for this role. Actual compensation within the range will depend on factors such as skills, experience, training, certifications, and organizational needs. It is not typical for an individual to be hired at or near the top or bottom of the range.

Your pay also includes the opportunity for an annual bonus in addition to the base salary. This variable pay opportunity is dependent upon the attainment of shared firmwide goals and objectives as determined by Excella’s Executive Team. Certain eligibility and pro‑ration rules apply.

Should your experience and knowledge qualify you for a different position or title within Excella, we may consider you for positions that better align with your qualifications. In that case, we will provide the range for those positions as well.

Equal Opportunity / Rights

Excella is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected veteran status, age, or any other characteristic protected by law. Excella is committed to providing access, equal opportunity, and reasonable accommodation for individuals with disabilities in employment, its services, programs, and activities. To request reasonable accommodation to participate in the job application or interview process, contact [e-mail] or 703-840-8600.

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