1

Javascript Engineer Jobs in Washington, DC (NOW HIRING)

Reflexive Concepts is seeking a JavaScript Developer to join our growing team! Reflexive Concepts is looking for a talented professional to help design, develop, test, and document policy-driven ...

Reflexive Concepts is seeking a JavaScript Developer to join our growing team! Reflexive Concepts is looking for a talented professional to help design, develop, test, and document policy-driven ...

Reflexive Concepts is seeking a JavaScript Developer to join our growing team! Reflexive Concepts is looking for a talented professional to help design, develop, test, and document policy-driven ...

Reflexive Concepts is seeking a JavaScript Developer to join our growing team! Reflexive Concepts is looking for a talented professional to help design, develop, test, and document policy-driven ...

Reflexive Concepts is seeking a JavaScript Developer to join our growing team! The role involves designing, developing, testing, and documenting software that supports classification string ...

Reflexive Concepts is seeking a JavaScript Developer to join our growing team! The role involves designing, developing, testing, and documenting software that supports classification string ...

Reflexive Concepts is seeking a JavaScript Developer to join our growing team! Reflexive Concepts is looking for a talented professional to help design, develop, test, and document policy-driven ...

Reflexive Concepts is seeking a JavaScript Developer to join our growing team! Reflexive Concepts is looking for a talented professional to help design, develop, test, and document policy-driven ...

Reflexive Concepts is seeking a JavaScript Developer to join our growing team! The role involves designing, developing, testing, and documenting policy-driven software that supports classification ...

next page

Showing results 1-20

Javascript Engineer information

See Washington, DC salary details

$115.5K

$153.5K

$178.9K

How much do javascript engineer jobs pay per year?

As of Jul 1, 2026, the average yearly pay for javascript engineer in Washington, DC is $153,492.00, according to ZipRecruiter salary data. Most workers in this role earn between $142,100.00 and $168,200.00 per year, depending on experience, location, and employer.

What does a JavaScript engineer do?

A JavaScript engineer develops and maintains interactive websites and web applications using JavaScript, often working with frameworks like React or Angular. They write clean, efficient code, troubleshoot issues, and collaborate with designers and backend developers to deliver functional user interfaces.

What are the key skills and qualifications needed to thrive as a JavaScript Engineer, and why are they important?

To thrive as a JavaScript Engineer, you need strong proficiency in JavaScript, a good understanding of web development fundamentals, and typically a degree in computer science or related experience. Familiarity with frameworks like React or Angular, version control systems like Git, and tools such as Node.js and npm is essential. Excellent problem-solving abilities, teamwork, and effective communication help you deliver robust solutions and collaborate efficiently. These skills and qualities are crucial for building scalable applications and adapting to evolving technology demands.

What engineer makes $500,000 a year?

A senior or lead software engineer, including experienced JavaScript engineers working in high-demand industries or at large tech companies, can earn $500,000 or more annually through base salary, bonuses, and stock options. Achieving this level typically requires extensive experience, advanced skills, and often working in roles with significant responsibility or in competitive markets.

Is JavaScript in demand in 2026?

JavaScript remains a highly in-demand skill for JavaScript engineers in 2026, as it is widely used for web development, both on the client and server sides. The continued growth of web applications and frameworks like React, Angular, and Vue.js sustains strong job opportunities for developers proficient in JavaScript and related tools.

What are some common challenges a JavaScript Engineer faces when working on large-scale applications?

One common challenge for JavaScript Engineers working on large-scale applications is maintaining code quality and consistency as the codebase grows. Managing dependencies, ensuring efficient performance, and coordinating with other team members to avoid merge conflicts are daily concerns. Engineers regularly use tools like linters, testing frameworks, and modular architectures (such as micro frontends) to address these issues. Collaboration with backend developers, product managers, and UX designers is also essential to ensure seamless integration and user experience.

What Does a Javascript Engineer Do?

As a JavaScript engineer, you develop, improve, and otherwise work with JavaScript software and applications that focus on businesses and individuals. Your duties in this career include writing JavaScript code to produce new functions for computer software and applications, fixing corrupt code that causes website or software malfunctions, and collaborating with other team members with development responsibilities to ensure that coding and programs work together seamlessly. JavaScript engineers need an excellent command of JavaScript language, experience working with computers, and familiarity with other coding languages that coincide with your exact position, such as HTML and CSS if you primarily work with websites.

What is the difference between Javascript Engineer vs Front-End Developer?

AspectJavascript EngineerFront-End Developer
Primary FocusDeveloping complex JavaScript applications, optimizing performance, and implementing advanced featuresBuilding and maintaining user interfaces, focusing on design and user experience
Skills & CertificationsJavaScript, frameworks (React, Angular), problem-solving, sometimes backend knowledgeHTML, CSS, JavaScript, UI/UX design, responsive design
Work EnvironmentTech companies, startups, roles involving full-stack or backend integrationWeb development agencies, tech firms, roles focused on UI/UX

While both roles require JavaScript expertise, Javascript Engineers typically focus on building complex applications and optimizing performance, whereas Front-End Developers concentrate on creating engaging user interfaces and ensuring a seamless user experience. The roles often overlap, but the Javascript Engineer's scope is broader in application development and performance tuning.

Is JavaScript high paying?

JavaScript engineers are generally well-paid, especially those with experience in frameworks like React or Node.js. Salaries vary based on location, experience, and skill level, but skilled JavaScript developers often earn above average wages in the tech industry.
What are popular job titles related to Javascript Engineer jobs in Washington, DC? For Javascript Engineer jobs in Washington, DC, the most frequently searched job titles are:
What job categories do people searching Javascript Engineer jobs in Washington, DC look for? The top searched job categories for Javascript Engineer jobs in Washington, DC are:
Infographic showing various Javascript Engineer job openings in Washington, DC as of June 2026, with employment types broken down into 79% Full Time, 11% Part Time, 2% Temporary, 7% Contract, and 1% Nights. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $153,492 per year, or $73.8 per hour.
JavaScript Developer

Full-time

Medical, Dental, Retirement, PTO

Posted 20 days ago


Job description

Company Description
Patrocinium (Latin for "protect") provides the leading cloud-based software as a service emergency management and crisis resolution solutions to enterprise clients.
ArcAngel allows enterprise clients to communicate with all users in the location of an emergency situation, thus mitigating exposure to corporate risk and reducing liability.
Patrocinium Systems aggregates, visualizes, and shares real-time data in a unique way, providing actionable intelligence to all stakeholders impacted by and responding to a man-made or natural disaster.
Visit www.patrocinium.com to learn more or schedule a demo today!
Specialties
IoT, SaaS, Emergency Management, Crisis Resolution
Job Description
Are you interested in joining a dynamic, growing organization? Patrocinium Systems LLC offers its employees a challenging and rewarding environment with top expanded talent and ideas. In an effort of making the universe a safer place, Patrocinium Systems embraces a team of talented and creative professionals who are dedicated to developing cutting edge technologies and innovative safety and security solutions for individuals and other businesses. Joining the Patrocinium team will allow a meticulous and enthusiastic JavaScript Developer to become involved in tackling unpredictable world events surrounding security in our interconnected world. While doing so, the JavaScript Developer will contribute to the functionality of the organization's flagship geolocation-enabled platform known as ArcAngel. ArcAngel is a multi-tiered technical solution, which provides real-time analytics, 3-5D visualization, Commercial and Government applications and interaction with Fortune 500 stakeholders and various government entities. Our platform encompasses patented technology to include: untethered application, multimodal communication, group and relational orientation and multidimensional technology all married to advanced visualization.
Patrocinium Systems LLC provides its employees with a competitive compensation package, which includes annual paid time off (PTO), 11 paid holidays, a medical and dental PPO plan and a 401(k) plan. In addition to a competitive compensation package, Patrocinium Systems offers a flexible/casual work environment that encourages innovative and strategic thinking.
Summary
The JavaScript Developer will be responsible for developing specifications for moderately complex software programming applications and modifies/maintains the existing software. This role develops, modifies and maintains applications that may be customized or standardized. This position participates in design and coding activities with other staff members.
Essential Functions
• Designs/codes applications following specifications using the appropriate tools.
• Performs or reviews systems analysis, design, programming, testing, debugging, and documentation for assigned projects.
• Maintains and modifies existing applications without supervision as well as under direction from senior staff members.
• Maintains functional operation of assigned production systems.
• Performs maintenance programming for existing version.
• Performs custom programming at customer request.
• Assumes responsibility for ongoing data architecture for product.
• Coordinates support for new development.
• Participates in the UX process
Competencies
• Problem Solving/Analysis.
• Presentation Skills
• Technical Capacity.
• Communication Proficiency.
• Time Management
Supervisory Responsibility
This position has no supervisory responsibilities.
Work Environment
This job operates in a professional office environment. This role routinely uses standard office equipment such as computers, phones, photocopiers, filing cabinets and fax machines.
Physical Demands
While performing the duties of this job, the employee is regularly required to talk or hear. The employee frequently is required to stand; walk; use hands to finger, handle or feel; and reach with hands and arms.
Position Type/Expected Hours of Work
This is a full-time position, and hours of work and days may vary. Occasional evening and weekend work may be required as job duties demand.
Security Clearance
A security clearance is not required.
AAP/EEO Statement
Patrocinium Systems LLC is an equal opportunity employer. Applicants receive consideration without regard to race, age, ethnicity, religion, gender, national origin, disability or any other basis prohibited by law.
Other Duties
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.
Qualifications
Education and Experience
• Bachelor of Science in Computer Science or equivalent on-the-job experience is required.
• 0-3 years of experience in software development is required.
• Proficient understanding of JavaScript, its quirks, and workarounds.
• Basic understanding of web markup, including HTML5 and CSS3.
• Good understanding AngularJS, D3, and NodeJS is preferred.
• Good understanding of asynchronous request handling, partial page updates and AJAX.
• Proficient understanding of cross-browser compatibility issues and ways to work around such issues.
• Familiarity with JavaScript module loaders, such as Require.js and AMD.
• Familiarity with front-end build tools, such as Grunt and Gulp.js.
• Familiarity with Git.
• Good understanding of browser rendering behavior and performance is required.
• Familiarity with deploying apps to Amazon Web Services is a plus.
Additional Information
All your information will be kept confidential according to EEO guidelines.