Senior Front-End Developer

Synergyecp; Washington (District of Columbia); On-site; USD 125,000 - 155,000; Full time

Benefits offered by this job

Comprehensive health benefits

401(k) retirement plan

Company-sponsored continuing education program

Generous paid time off and holidays

Participation in volunteer initiatives

Job summary

Synergyecp is looking for a Front-End Developer to join their team in Washington, DC. You will be responsible for developing modern, user-focused web applications using technologies such as React, Node.js, and TypeScript. The role involves building high-performance interfaces and collaborating closely with designers and backend engineers.

With a competitive salary range of $125,000 to $155,000, this position offers a strong benefits package, including health, retirement plans, and generous paid time off. Candidates must possess an active Top-Secret clearance and be eligible for SCI.

Qualifications

• 8 years of software engineering experience.
• 3 years of experience developing modern front-end applications using React and Node.js.
• Hands-on experience with HTML, CSS, and responsive design.

Responsibilities

• Build responsive, high-performance user interfaces using Node.js and React.
• Integrate front end applications with backend .NET services.
• Collaborate with UX/UI designers to ensure seamless functionality.

Skills

React

JavaScript

Node.js

TypeScript

HTML

CSS

Git

REST APIs

Tools

GitLab

AWS

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‑knotted team of highly cleared engineers, analysts, and program managers represent some of the best talent locally available.

As a Front‑End Developer, you will contribute to the design, development, and maintenance of modern, user‑focused web applications that support mission operations. You will build responsive and high‑performance interfaces using React, TypeScript, JavaScript, Node.js, HTML, and CSS, ensuring seamless integration with .NET backend services and AWS‑hosted environments. In this role, you will collaborate closely with UX designers, backend engineers, and product teams to implement clean, maintainable components and deliver intuitive user experiences. You will participate in code reviews, uphold coding standards, troubleshoot UI issues, and support continuous improvements across the application stack. Your technical expertise, problem‑solving skills, and attention to detail will play an important role in delivering secure, scalable, and reliable front‑end solutions for our customers.

What you’ll do:

• Build responsive, high performance user interfaces using Node.js, React, JavaScript, TypeScript, HTML, and CSS
• Develop modular, maintainable UI components aligned with modern front end engineering practices
• Integrate front end applications with backend .NET services using REST APIs, JSON, and XML
• Implement client‑side state management and optimize rendering for scalable, enterprise‑grade applications
• Collaborate with UX/UI designers and backend engineers to ensure seamless end‑to‑end functionality
• Participate in code reviews and enforce standards for readability, quality, and maintainability
• Use Git and GitLab for version control, branching strategies, and merge request workflows
• Ensure front end applications meet accessibility, security, and performance requirements
• Troubleshoot and resolve UI issues across environments and browsers
• Work within AWS cloud‑hosted environments and support deployments as part of the overall delivery team

What you’ll need:

• 8 years of software engineering experience
• 3 years of experience developing modern front‑end applications using React, Node.js, JavaScript, and TypeScript
• Hands‑on experience building UI components with HTML, CSS, and responsive design techniques
• Experience integrating with REST APIs and working with JSON and XML data formats
• Familiarity with Node.js for development tooling, build processes, or backend integration tasks
• Proficiency with Git and GitLab for source control, versioning, and collaboration
• Ability to work within cloud environments, preferably AWS, as part of a full‑stack delivery pipeline
• Strong understanding of front‑end performance optimization, browser behavior, and debugging
• Ability to collaborate with cross‑functional teams and communicate technical concepts clearly

Bonus points if you have:

• Experience with YAML and CI/CD pipeline development (GitLab CI preferred)
• Exposure to .NET ecosystems and how front‑end applications integrate with backend services
• Experience with automated testing frameworks for UI (Jest, React Testing Library)
• Familiarity with accessibility standards (Section 508, WCAG)
• Experience supporting cloud‑native architecture in AWS

Clearance:

Must have an active Top‑Secret clearance and be eligible for SCI.

Other Requirements:

• U.S. Citizenship

Compensation Spotlight:

For this role, our typical salary range starts at $125,000 and stretches up to $155,000. We are committed to rewarding top talent and are willing to go beyond the typical salary when experience and fit align.

Benefits:

• Compensation: Highly competitive salary and comprehensive benefits package.
• Health & Retirement: Comprehensive health benefits and 401(k) retirement plan.
• Education: Company‑sponsored continuing education program to support career growth.
• Work/Life Balance: Generous paid time off, 10 paid holidays, and flexible work options.
• Philanthropy: Company participation in volunteer and philanthropy initiatives to give back to the community.

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.