Sr. Front End Software Engineer - React
- Category: Software Developer Jobs
- Location: Herndon, Virginia
- Job Type: Full Time / Part Time
- Salary: Estimated: $ 23K to 31K
- Published on: 2025/07/04
Qualifications
Excellent knowledge of CSS, JavaScript, ReactJS and the related ecosystem
JavaScript; Cascading Style Sheets (CSS); User Interfaces (UI); User Experience (UX); Front-End Engineering; React.js
Bachelor's Degree
10 Years +, 5-7 Years, 2-5 Years, 0-2 Years, 15 Years +, 7-10 Years
Benefits
Pay Range: This job can be performed in Maryland with a Pay Range of $126,788.71 - $217,352.08
Comcast intends to offer the selected candidate base pay within this range, dependent on job-related, non-discriminatory factors such as experience
Most sales positions are eligible for a Commission under the terms of an applicable plan, while most non-sales positions are eligible for a Bonus
Additionally, Comcast provides best-in-class Benefits to eligible employees
Responsibilities
As a Senior Front-End Engineer in our Infrastructure UI team, you will be responsible for both developing client-facing UI features and building fundamental front-end frameworks/libraries
Design and development of complex front-end systems ensuring scalability, maintainability and high performance
Work closely with UI/UX designers, backend developers and product managers to deliver visually appealing and intuitive projects on time and to the highest quality standards
Develop and execute automated unit tests and perform thorough UI validations to ensure robust and error-free application interfaces
Optimize applications for maximum speed and scalability
Stay up to date with the latest front-end technologies and best practices, willing to share and discuss with teammates
Displays expertise in knowledge of engineering methodologies, concepts and skills and their application in the area of specified engineering specialty
Consistent exercise of independent judgment and discretion in matters of significance
Regular, consistent and punctual attendance
Must be able to work nights and weekends, variable schedule(s) and overtime as necessary
Other duties and responsibilities as assigned
Understand our Operating Principles; make them the guidelines for how you do your job
Own the customer experience - think and act in ways that put our customers first, give them seamless digital options at every touchpoint, and make them promoters of our products and services
Know your stuff - be enthusiastic learners, users and advocates of our game-changing technology, products and services, especially our digital tools and experiences
Win as a team - make big things happen by working together and being open to new ideas
Be an active part of the Net Promoter System - a way of working that brings more employee and customer feedback into the company - by joining huddles, making call backs and helping us elevate opportunities to do better for our customers
Drive results and growth
Respect and promote inclusion & diversity
Do what's right for each other, our customers, investors and our communities
This information has been designed to indicate the general nature and level of work performed by employees in this role
Job description
FreeWheel, a Comcast company, provides comprehensive ad platforms for publishers, advertisers, and media buyers. Powered by premium video content, robust data, and advanced technology, we’re making it easier for buyers and sellers to transact across all screens, data types, and sales channels. As a global company, we have offices in nine countries and can insert advertisements around the world.
Job Summary
As a Senior Front-End Engineer in our Infrastructure UI team, you will be responsible for both developing client-facing UI features and building fundamental front-end frameworks/libraries. All team members specialize in front-end development, enabling seamless transitions between working on client-facing features and foundational libraries as project priorities shift. Additionally, our team fosters a collaborative and innovative environment, encouraging the exchange and discussion of cutting-edge front-end technologies.
Job Description
• Design and development of complex front-end systems ensuring scalability, maintainability and high performance
• Work closely with UI/UX designers, backend developers and product managers to deliver visually appealing and intuitive projects on time and to the highest quality standards.
• Develop and execute automated unit tests and perform thorough UI validations to ensure robust and error-free application interfaces.
• Optimize applications for maximum speed and scalability.
• Stay up to date with the latest front-end technologies and best practices, willing to share and discuss with teammates
• Displays expertise in knowledge of engineering methodologies, concepts and skills and their application in the area of specified engineering specialty.
• Consistent exercise of independent judgment and discretion in matters of significance.
• Regular, consistent and punctual attendance. Must be able to work nights and weekends, variable schedule(s) and overtime as necessary.
• Other duties and responsibilities as assigned.
About You
Our people are the most important part of our business, and none more so than our engineers. We are fundamentally looking for bright, enthusiastic problem solvers- people who love a challenge, constantly evaluate and question, and above all, love to ship a product that solves real problems.
• Excellent knowledge of CSS, JavaScript, ReactJS and the related ecosystem. Experience with Typescript preferred but not required.
• Experience with Data Visualization using Highcharts or similar tools is a good bonus.
• Experience with designing, implementing, and shipping rich front-end applications.
• Passionate about delivering elegant technical solutions that not only meet Client and Product expectations, but are also underpinned by code that is clear, concise, maintainable, and testable.
• Must thrive working and collaborating in a multidisciplinary team, where you can work with, learn from, and teach not just Engineers but also Product Managers, System Testers, UX designers, etc.
• Happy to engage in discussion with your fellow engineers to reach the best possible solutions for our technical challenges
• Proactive, inquisitive, always looking for a challenge and want to constantly grow as a professional and to grow others around you
• Bachelor’s degree in Computer Science or Engineering Required. Master’s degree highly preferred.
• Selected candidate will be required to work Eastern Standard Hours.
Employees At All Levels Are Expected To
• Understand our Operating Principles; make them the guidelines for how you do your job.
• Own the customer experience - think and act in ways that put our customers first, give them seamless digital options at every touchpoint, and make them promoters of our products and services.
• Know your stuff - be enthusiastic learners, users and advocates of our game-changing technology, products and services, especially our digital tools and experiences.
• Win as a team - make big things happen by working together and being open to new ideas.
• Be an active part of the Net Promoter System - a way of working that brings more employee and customer feedback into the company - by joining huddles, making call backs and helping us elevate opportunities to do better for our customers.
• Drive results and growth.
• Respect and promote inclusion & diversity.
• Do what's right for each other, our customers, investors and our communities.
Disclaimer
• This information has been designed to indicate the general nature and level of work performed by employees in this role. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications.
• This position is unable to provide work authorization sponsorship or immigration support now or in the future.*
Comcast is proud to be an equal opportunity workplace. We will consider all qualified applicants for employment without regard to race, color, religion, age, sex, ****** orientation, gender identity, national origin, disability, veteran status, genetic information, or any other basis protected by applicable law.
Skills
JavaScript; Cascading Style Sheets (CSS); User Interfaces (UI); User Experience (UX); Front-End Engineering; React.js
Salary
Pay Range: This job can be performed in Maryland with a Pay Range of $126,788.71 - $217,352.08
Comcast intends to offer the selected candidate base pay within this range, dependent on job-related, non-discriminatory factors such as experience. The application window is 30 days from the date job is posted, unless the number of applicants requires it to close sooner or later.
Base pay is one part of the Total Rewards that Comcast provides to compensate and recognize employees for their work. Most sales positions are eligible for a Commission under the terms of an applicable plan, while most non-sales positions are eligible for a Bonus. Additionally, Comcast provides best-in-class Benefits to eligible employees. We believe that benefits should connect you to the support you need when it matters most, and should help you care for those who matter most. That’s why we provide an array of options, expert guidance and always-on tools, that are personalized to meet the needs of your reality – to help support you physically, financially and emotionally through the big milestones and in your everyday life. Please visit the compensation and benefits summary on our careers site for more details.
Education
Bachelor's Degree
While possessing the stated degree is preferred, Comcast also may consider applicants who hold some combination of coursework and experience, or who have extensive related professional experience.
Relevant Work Experience
10 Years +, 5-7 Years, 2-5 Years, 0-2 Years, 15 Years +, 7-10 Years
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