Senior Front-End Software Engineer

Company: Vantor
Location: Herndon
Posted on: February 23, 2026

Job Description:

At Vantor, Inc., we empower organizations through cutting-edge AI-driven solutions and data insights, supported by robust cloud services. As part of our dedicated IT expertise, we are seeking a highly skilled Senior Front-End Software Engineer who will play a crucial role in developing responsive and effective applications. The ideal candidate will be deeply involved in transforming complex design challenges into user-friendly interfaces, optimizing application performance, and ensuring seamless user experiences. You will collaborate with our team of talented engineers and product managers to push the boundaries of what is possible in creating efficient and scalable front-end architectures. Develop new user-facing features using frameworks like React.js and Angular. Build reusable code and libraries for future use ensuring the technical feasibility of UI/UX designs. Optimize application for maximum speed and scalability. Collaborate with back-end developers and web designers to improve usability. Receive feedback from, and build solutions for, users and customers. Ensure the implementation of security and data protection design features. Stay up-to-date on emerging technologies and apply them into operations and activities. Proficiency in HTML, CSS, JavaScript, and TypeScript. Experience with front-end frameworks such as React or Angular. Understanding of server-side CSS pre-processing platforms, such as LESS and SASS. Familiarity with tools like Gulp or Grunt, and package managers such as npm or Yarn. Good understanding of asynchronous request handling, partial page updates, and AJAX. Proficient understanding of cross-browser compatibility issues and ways to work around them. Knowledge of front-end security practices. Medical Insurance Dental Insurance Vision Insurance Life Insurance 401k Certified Web Developer. Certification in React or Angular frameworks is a plus.

Keywords: Vantor, Bethesda , Senior Front-End Software Engineer, IT / Software / Systems , Herndon, Maryland

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