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Sr Frontend Developer Jobs in Washington (NOW HIRING)

Lyteforge Technologies LLC

Frontend Developer

Mclean, VA · On-site

$130K/yr

* Senior Frontend JavaScript Developer Our organization is a unique software development company based in McLean, Virginia, dedicated to providing top-tier solutions to defend the United States and its ...

ManTech International

Senior Frontend Developer

Ashburn, VA · On-site

$55.75 - $73.75/hr

MANTECH seeks a motivated, career- and customer-oriented Senior Frontend Java Developer to join our innovative team in Ashburn, VA . This is a hybrid position with 2 - 3 days onsite. Each day U.S.

ManTech

Senior Frontend Developer

Ashburn, VA · Hybrid

$55.75 - $73.75/hr

MANTECH seeks a motivated, career- and customer-oriented Senior Frontend Java Developer to join our innovative team in Ashburn, VA . This is a hybrid position with 2 - 3 days onsite. Each day U.S.

Data Society

Sr. Frontend Engineer (React)

Washington, DC · On-site

$120 - $160/hr

About the Role The onshore Senior Front-End Engineer leads React UI architecture and build quality ... Proficiency with Azure DevOps CI/CD pipelines and security-gated build processes (Veracode or ...

CircleIn

Senior Frontend Engineer

Silver Spring, MD · On-site +1

$126K - $173K/yr

The contribution of a Senior Frontend Engineer: * Take full ownership of building, shipping and maintaining features, end-to-end * Drive the future of CircleIn's Frontend products and design ...

CircleIn

Senior Frontend Engineer

Silver Spring, MD

$126K - $173K/yr

The contribution of a Senior Frontend Engineer: * Take full ownership of building, shipping and maintaining features, end-to-end * Drive the future of CircleIn's Frontend products and design ...

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Sr Frontend Developer information

What is a Sr Frontend Developer?

Sr Frontend Developers are experienced software engineers who specialize in building and optimizing the user interfaces of web applications. They are responsible for translating design mockups into interactive, responsive, and accessible web pages using technologies like HTML, CSS, and JavaScript frameworks (such as React, Angular, or Vue). In addition to coding, Sr Frontend Developers often lead technical decisions, mentor junior developers, and collaborate closely with designers and backend engineers to deliver high-quality user experiences. Their expertise ensures that web applications are visually appealing, performant, and user-friendly.

What are the key skills and qualifications needed to thrive as a Sr Frontend Developer?

To thrive as a Sr Frontend Developer, you need deep expertise in HTML, CSS, JavaScript, and modern front-end frameworks like React or Angular, usually backed by a degree in computer science or equivalent experience. Advanced knowledge of tools such as Git, Webpack, RESTful APIs, and proficiency with testing frameworks is typically required. Outstanding problem-solving abilities, strong collaboration, and effective communication set top performers apart in this role. These skills ensure the delivery of high-quality, user-friendly interfaces and seamless teamwork in fast-paced development environments.

What are some common challenges faced by Sr Frontend Developers when working on cross-functional teams?

Sr Frontend Developers often collaborate closely with backend engineers, UX/UI designers, and product managers. A common challenge in these environments is ensuring clear communication of technical requirements and design expectations to avoid misunderstandings that can lead to rework. Balancing user experience with technical feasibility is another frequent hurdle, especially when negotiating priorities between design vision and performance constraints. Effective Sr Frontend Developers proactively bridge gaps through strong documentation, regular alignment meetings, and by advocating for best practices in both development and design.

What is the difference between Sr Frontend Developer vs Frontend Developer?

AspectSr Frontend DeveloperFrontend Developer
Required ExperienceTypically 5+ years, leadership skills1-3 years, entry to mid-level
ResponsibilitiesAdvanced coding, mentoring, project leadershipImplementing UI features, bug fixes
Skills & CertificationsExpertise in JavaScript, frameworks, leadershipHTML, CSS, JavaScript basics
Work EnvironmentSenior roles in teams, project planningDevelopment teams, collaborative projects

The main difference between a Sr Frontend Developer and a Frontend Developer lies in experience, responsibilities, and leadership. Senior developers handle complex tasks, mentor others, and lead projects, while frontend developers focus on implementing features and fixing bugs. Both roles require strong JavaScript, HTML, and CSS skills, but senior roles demand more experience and strategic input.

What are popular job titles related to Sr Frontend Developer jobs in Washington?

For Sr Frontend Developer jobs in Washington, the most frequently searched job titles are:

What job categories do people searching Sr Frontend Developer jobs in Washington look for?

The top searched job categories for Sr Frontend Developer jobs in Washington are:

What cities in Washington are hiring for Sr Frontend Developer jobs?

Cities in Washington with the most Sr Frontend Developer job openings:

Sr Frontend Developer jobs near you
Infographic showing various Sr Frontend Developer job openings in Washington as of August 2026, with employment types broken down into 90% Full Time, 5% Part Time, and 5% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution.

Frontend Developer

Lyteforge Technologies LLC

Mclean, VA • On-site

$130K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 24 days ago

Key responsibilities

  • Lead the design, architecture, and development of complex user interfaces and frontend components using AngularJS, React, TypeScript, and core JavaScript.

  • Architect and implement real-time communication features utilizing SocketIO and develop advanced data visualizations with D3.js.

  • Collaborate with UI/UX designers and backend engineers, conduct code reviews, and mentor junior frontend developers.

Job description

  • Senior Frontend JavaScript Developer 

    Our organization is a unique software development company based in McLean, Virginia, dedicated to providing top-tier solutions to defend the United States and its businesses.  

    We are seeking a highly skilled and passionate Senior Frontend JavaScript Developer who embodies our commitment to excellence and is driven to "do it right." This is a long-term opportunity for serious professionals who meet our stringent requirements and are eager to contribute to our critical mission. Compensation will be commensurate with experience, and we offer significant opportunities for professional growth and advancement within our best-of-the-best team. 

    DESCRIPTION: 

    We are seeking a highly skilled and experienced Senior Frontend JavaScript Developer to lead the development of sophisticated user interfaces for our critical applications. The ideal candidate will possess deep expertise in modern JavaScript technologies and a proven track record of delivering high-quality, scalable, and maintainable frontend solutions. This role requires a strong technical leader who can architect complex frontend systems, mentor junior developers, drive best practices, and effectively utilize technologies such as React, AngularJS, TypeScript, SocketIO, and D3.js. You will play a pivotal role in shaping the user experience and ensuring the success of our mission-critical projects. 

    Day-to-day responsibilities and duties include: 

    • Lead the design, architecture, and development of complex user interfaces and frontend components usingAngularJS,React,TypeScript, and coreJavaScript.
    • Architect and implement robust real-time communication features utilizingSocketIOfor seamless user experiences.
    • Drive the implementation of advanced data visualizations and interactive graphics using theD3.jslibrary to effectively present critical information.
    • Collaborate closely with UI/UX designers and backend engineers to define and implement comprehensive frontend solutions that meet project requirements.
    • Write andmaintainclean, well-documented, performant, and scalable code,establishingand enforcing coding standards and best practices.
    • Conduct thorough code reviews, providing constructivefeedbackand ensuring code quality across the team.
    • Proactivelyidentifyand resolve complex technical challenges and performance bottlenecks in the frontend.
    • Stay at the forefront offrontenddevelopment trends, evaluating and recommendingnew technologiesand approaches to enhance our capabilities.
    • Lead and mentor junior frontend developers, providing guidance, technicalexpertise, and fostering their professional growth.
    • Drive the adoption of frontend testing best practices, including unit, integration, and end-to-end testing.
    • Collaborate effectively within an agile development environment,participatingin planning, estimation, and retrospectives.
    • Take ownership of the technical aspects of frontend delivery,ensuring adherence to timelines and quality standards.
    • Contribute significantly to the continuous improvement of our development processes, tools, and overall frontend architecture.

  • REQUIREMENTS: 

    Applicants MUST 

    - must be able to qualify and maintain security clearance. 
     
    - have at least 6 years of Developer experience and have a good understanding of professional business environments. 

    - be very friendly and able to calmly handle clients and staff 

    - be able to carry themselves in a professional manner 

    - be punctual, responsible, and reliable 

    - have good written and verbal communication skills (answering the phone and composing emails in a professional manner) 

    Benefits / Additional Compensation: 

    • Health Insurance
    • Dental Insurance
    • Vision Insurance
    • 401k match
    • Paid Time off

  • Job Type: Full-time 

    Pay: From $130,000 per year excluding bonus and benefits. 

    Schedule: 

    • The schedule for this position is project driven and can be highly variable depending on project deadlines and the specific needs of the software development teams.
    • Monday to Friday
    • Weekends as needed

  • Work Location: In person 

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