Front End Developer; UI​/React - Onsite in VA

Position: Front End Developer (UI/ React) - Onsite in VA
# Front End Developer (UI/ React) - Onsite in VAKPG
99 INCBe an Early Applicant Contract junior Mc Lean , Virginia, USPosted Today##

Role Overview KPG
99 INC is hiring a entry-level Front End Developer (UI/ React) - Onsite in VA. This is a contract role in McLean. Part of KPG
99 INC's Frontend hiring, posted today. applications are still in the early window, before most candidates have applied. Full responsibilities, required qualifications, and the apply link are listed in the description below.## Salary Context Salary is not disclosed in this posting. Market median for Junior-level Frontend roles is $90k-$130k (based on 17 comparable listings). Many employers share specifics during the interview process or after an initial screen.##

Resume Keywords to Include Make sure these keywords appear in your resume to improve ATS scoring

Java Script Type Script React Spring Redux Zustand Git RESTSign up free to auto-tailor your resume with all these keywords and get a higher ATS score## Job description

Independent Candidates Only - W2 Only Front End Developer (UI/ React)

Location:

ONSITE 5 days a week i n McLean, VA ( must be within 45 miles of the McLean, VA officeLONG TERM CONTRACT....no tenure
* No Sponsorship Offered2 Rounds of Interview (1st virtual/ phone & Final onsite )### About We are seeking a highly skilled Senior React Frontend Developer with a strong focus on modern UI development to design and build high-performance web applications for the financial services industry. The ideal candidate will have extensive experience with React, Type Script, and modern frontend architecture, along with excellent communication skills to collaborate directly with business stakeholders, quantitative analysts, and cross-functional engineering teams.

Experience in financial services, particularly Fixed Income, is highly preferred.

Key Responsibilities
* Design, develop, and maintain responsive, scalable, and high-performance user interfaces using React and Type Script.
* Build reusable UI components and implement modern frontend architecture using state management libraries such as Redux, React Query, or Zustand.
* Integrate frontend applications with Spring Boot backend services and REST APIs.
* Develop interactive data grids and visualization components using AG Grid (preferred).
* Write clean, maintainable, and well-tested code using React Testing Library and Jest.
* Identify and resolve technical debt while promoting coding standards, best practices, and continuous improvement.
* Participate in architecture discussions, code reviews, and technical documentation.
* Collaborate closely with product owners, business users, and quantitative analysts to translate business requirements into intuitive UI solutions.
* Coordinate with backend, infrastructure, and Dev Ops teams to deliver end-to-end features.

Required Qualifications
* 5+ years of professional software development experience with a strong emphasis on React frontend development.
* Strong proficiency in React, JavaScript, and Type Script.
* Experience with frontend state management solutions such as Redux, React Query, or Zustand.
* Experience integrating RESTful APIs and backend services.
* 2–3 years of experience with Git in a collaborative, team-based development workflow (branching strategies, PRs, code reviews).
* Experience writing unit and integration tests using Jest and React Testing Library.
* Excellent communication and stakeholder management skills with the ability to work directly with business users.
* Strong analytical, problem-solving, and debugging skills.
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