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Sr Frontend Developer Jobs in Washington (NOW HIRING)

Front-End Developer SME

Herndon, VA · On-site +1

$140K - $165K/yr

CompTIA Sec+ (or equivalent DoD 8570 IAT Level II certification) (Preferred). * 10+ years of experience as a front-end developer, with at least 7+ years in a senior or SME-level role on IT or ...

Front-End Developer SME

Herndon, VA · Remote

$140K - $165K/yr

CompTIA Sec+ (or equivalent DoD 8570 IAT Level II certification) (Preferred). * 10+ years of experience as a front-end developer, with at least 7+ years in a senior or SME-level role on IT or ...

FullVisibilityisseeking aWeb Application Developer Senior -levellocatedin Washington, DC and is a Hybrid Role. Candidate must possessan active Top Secret/SCI Eligibility C learance. Individuals ...

New

Overview BigBear.ai is seeking a BigBear.ai is seeking a Senior Front-End Angular Engineer to ... You write code for the next developer, not just for today's ticket * You actively incorporate AI ...

Jr. Front End Developer

Vienna, VA

$104K - $121K/yr

Summary Jr. Front End Developer Vienna, VA Are you ready to enhance your skills and build your ... From entry-level employees to senior leaders, we believe there's always room to learn. We offer ...

Jr. Front End Developer

Vienna, VA · On-site

$104K - $121K/yr

Req ID: 40544 Summary Jr. Front End Developer Vienna, VA Are you ready to enhance your skills and ... From entry-level employees to senior leaders, we believe theres always room to learn. We offer ...

Mid Front End Developer

Vienna, VA · On-site

$104K - $121K/yr

Summary Mid Front End Developer Vienna, VA Are you ready to enhance your skills and build your ... From entry-level employees to senior leaders, we believe there's always room to learn. We offer ...

Mid Front End Developer

Vienna, VA · On-site

$104K - $121K/yr

Req ID: 40543 Summary Mid Front End Developer Vienna, VA Are you ready to enhance your skills and ... From entry-level employees to senior leaders, we believe theres always room to learn. We offer ...

Overview We are seeking a Senior Front-End Engineer with deep expertise in Angular 17+, modern web technologies, and enterprise-scale UI development. The ideal candidate combines strong technical ...

Showing results 41-60

Sr Frontend Developer information

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 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 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 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 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:
Infographic showing various Sr Frontend Developer job openings in Washington as of July 2026, with employment types broken down into 91% Full Time, 5% Part Time, and 4% Contract. Highlights an 85% Physical, 5% Hybrid, and 10% Remote job distribution.

Front-End Developer

Semper Valens Solutions

Fort George G Meade, MD • On-site

$115K - $134K/yr

Full-time

Re-posted 29 days ago


Job description

Front-End Developer, Senior/MidFull Time Fort Meade, MDTop Secret/SCI Clearance**This position is contingent upon contract award** Job Description:Job Responsibilities:Provides subject matter proficiency for work described in the task. Responsible for providing analytical skills to support process improvement, specialized studies, and definition of requirements. Typical duties include analysis, planning, developing requirements documents, building functional models, developing procedures, developing functional architectures, and other related management and technical duties. Requires expertise in specialty areas.Performs engineering tasks for front-end design and development efforts including, but not limited to, creating technical design drawings, mockups, wireframes, and other associated documentation for the JCC2 PMO and stakeholder review, planning and implementing modifications to Graphic User Interfaces (GUIs), constructing and optimizing various UI elements, optimizing system navigation practices and elements, and facilitating operator ease of use for user-facing feature development. Required Qualifications:Bachelor's degree in related field required.10 years (Senior)/7 years (Mid) of experience in the functional area. A Master's degree may substitute for 2 years of experience.10 years (Senior)/7 years (Mid) of software development experience in object-oriented and scripted languages with the ability to apply several tool suites related to DevSecOps, microservices and containers.5 years (Senior)/3 years (Mid) of recent and relevant experience performing front-end web design and development.Demonstrated experience in preparing, conducting, and documenting various systems tests and results to verify system operability and compliance with project standards and requirements.Demonstrated experience engaging in agile, user-centric application design, ensuring best-of-breed UI/UX standards.Demonstrated experience in generating system wireframes, mockups, etc. considering multiple user personas.5 years (Senior)/3 years (Mid) of experience with bug tracking software (e.g., Jira).5 years (Senior)/3 years (Mid) of experience testing web-based applications.5 years (Senior) of experience leading or 3 years of experience participating (Mid) in software development programs/projects.Practical experience developing in a cloud environment.Experience with integrating data from unclassified to classified application deployments (Mid)5 years of experience with Jenkins and GitLab.5 years of experience with at least five (5) of the following: Apache, Ember, Javascript, Jaguar, Java, Cricket, Node Desired Qualifications:• Experience using Agile Test-Driven development.• Experience integrating into DoW DevSecOps environments.• Demonstrated experience in utilizing UX design tool suites (e.g., Sketch, InVision).• 5 years of experience with CI/CD software development. About Semper Valens Solutions:Semper Valens Solutions, Inc. (SVS) is a Service-Disabled Veteran Owned Small Business (SDVOSB) providing Cost Effective Software and Systems Engineering, Field Support, Training and Full Life cycle Support Management to the DOD and VA community.At Semper Valens, our vision is to remain a creative, cutting edge and cost-effective solutions provider where our shared intellect, industry experience, and technology excellence, make a positive difference in our customer's success. Our solutions help bridge the gap between IT and business prioritizations to optimize budgets, risks and operational processes.We search for outstanding technical professionals, hiring at all levels of the experience spectrum; intermediate, journeyman and senior. Consider us for your career plan.Semper Valens Solutions is an Equal Opportunity EmployerSemper Valens Solutions proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital/parental status, pregnancy/childbirth, or related conditions, physical or mental disability, genetic information, status as a Disabled Veteran, Recently Separated Veteran, Active-Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.If you require a reasonable accommodation to apply for a position with Semper Valens Solutions through its online applicant system, please contact Semper Valens Solutions Human Resources Department at (830) 899-6870.Semper Valens Solutions is an affirmative action/equal opportunity employer - minorities, females, disabled, and protected veterans are urged to apply. Applicants have rights under Federal Employment Laws.All Jobs at Semper Valens Solutions: https://sempervalens.com/careers