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Senior Web Application Developer

Synergyecp

Washington, DC permanent

Posted: February 20, 2026

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Quick Summary

We're looking for a Senior Web Application Developer to join our team in Washington, DC, and contribute to the development and maintenance of high-quality, cost-effective solutions.

Job Description

NetServices (NSI) is an IT services firm with a long-standing reputation for delivering high-quality, cost-effective solutions to drive lasting results. Now operating as a subsidiary of Synergy ECP, NSI continues to stand out in a crowded contracting landscape through its agility, strong customer focus, and commitment to retaining exceptional talent. By taking on challenging IT initiatives, we cultivate our talent and are continually evolving through our partnerships with clients. Our close-knot team of highly cleared engineers, analysts, and program managers represent some of the best talent locally available.

Description:
The Web Application Developer is responsible for designing, testing, and developing well-designed web-based software code that is testable and efficient, using best software development practices to meet user needs. This role involves recommending software upgrades for current and future systems, translating User Interface (UI)/User Experience (UX) design wireframes, ensuring software continues to function normally through software maintenance and testing, and documenting every aspect of the application, service, or environment as a reference for future maintenance and upgrades.

Key Responsibilities:
• Design, test, and develop well-designed web-based software code that is testable and efficient.
• Utilize best software development practices to meet user needs.
• Recommend software upgrades for current and future systems.
• Translate User Interface (UI)/User Experience (UX) design wireframes into functional web applications.
• Ensure software continues to function normally through software maintenance and testing.
• Document every aspect of the application, service, or environment for future reference and maintenance.
• Collaborate with cross-functional teams to define and implement new features.
• Write clean, well-documented, and scalable code.
• Debug and resolve technical issues to maintain the performance and security of web applications.
• Stay up-to-date with emerging technologies and industry trends to ensure the application remains current and competitive.

Qualifications:
• Proven experience in web application development.
• Experience with Microsoft 365 Power Platform and SharePoint.
• Strong knowledge of front-end and back-end web development technologies.
• Proficiency in HTML, CSS, JavaScript, and other relevant programming languages.
• Experience with UI/UX design principles and translating design wireframes into functional applications.
• Strong understanding of software development best practices.
• Ability to recommend and implement software upgrades.
• Experience in software maintenance and testing to ensure continued functionality.
• Excellent problem-solving and debugging skills.
• Strong communication and collaboration skills.
*Bachelors Required
*Minimum 8 Years experience

Preferred Skills:
• Familiarity with modern web development frameworks and libraries.
• Experience with version control systems such as Git.
• Knowledge of database management and integration.
• Understanding of web security best practices.
• Ability to document processes and code for future maintenance and upgrades.

Security Clearance requirement:
Must possess active TS/SCI clearance to be considered for this role.

Other Requirements:
U.S. Citizenship

Compensation Spotlight:
For this role, our typical salary range starts at $110,000 and stretches up to $140,000. But here's the deal – we're not about capping your potential. We're committed to snapping up the best and brightest, and we're ready to put our money where our mouth is. So, if you're one of the rare exceptions to the status quo with the education, experience, and that extra something special, we're not afraid to go above and beyond to secure your talent. Because for us, it's not just about a salary. It's about the complete rewards package, the culture, and the opportunity to make a real impact.


Taking Care of the People Who Take Care of The Nation

Compensation: We offer highly competitive compensation that is consistently recognized by our employees as being generous!

Health & Retirement: We offer a comprehensive Health Benefits package and 401K Retirement plan so you can take care of yourself and your family... both now and in the future. Other health-related benefits include People Partners who will help you navigate both personal and professional worlds, as well as strong wellness related resources offered through our healthcare provider.

Education: Individual growth is a priority at NSI/Synergy ECP. Employees are encouraged to take advantage of our company-sponsored continuing education program so they can get their degree or that next certification needed to propel them towards the next level. Not sure what's best for your career plans, we'll help you navigate it all!

Work/Life Balance: A healthy work/life balance is essential for building and executing your work effectively at NSI/Synergy ECP, but it’s also necessary to allow you the room to pursue everything you want to develop in your personal life. We offer a generous Paid Time Off benefit and 10 paid holidays a year. NSI/Synergy ECP also provides flexible work options that work with your schedule and lifestyle.

Philanthropy: With the help of our amazing employees, NSI/Synergy ECP participates annually in building awareness, volunteering and contributing to dozens of organizations. We believe that giving back creates a sense of purpose, engagement, and fulfillment. Have a cause you are passionate about? We bet you'll find others here that care about it just as much!

NSI/Synergy ECP is committed to providing equal employment opportunities to all qualified individuals. Employment decisions are based on merit, qualifications, and business needs. We do not discriminate on the basis of race, color, sex, national origin, religion, age, disability, or any other status protected by applicable law.

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