Javascript Developer

Senior React Developer /UI/UX Developer /Full Stack Developer (Developer-UX User Interface Senior)

Location:- McLean, Virginia (5 days onsite)

Type of Hire:- Contract

Job Description

• Developer-UX User Interface Senior.
• Client's Financial Engineering team is seeking Developer-UX User Interface Senior for a large strategic financial project.
• The position is focused on UI/UX development for a software application platform that produces enterprise level reporting on financial statements and orchestration of financial models.
• The candidate will develop and support the front-end (presentation layer) of the application.
• They will build, test, and deploy UI components, and collaborate with other IT groups, Dev Ops, and REST API middleware teams.

Responsibilities Include:

• Develop highly responsive, user-facing features using React.js, Redux and TypeScript/JavaScript
• Build reusable components and frontend libraries for future use.
• Understand business requirements and translate them into intuitive user experiences.
• Working knowledge of design, mock-up, wireframe tools (Figma)
• Translate designs and wireframes into high quality code.
• Develop flexible and well-structured front-end architecture, along with the APIs to support it.
• Optimize existing components for maximum performance.
• Build rich visualizations capable of handling and presenting large volumes of financial data.
• Manage self-directed assignments to implement features to meet schedule commitments with a high level of quality.
• Collaborate effectively with cross-functional teams and contribute to code reviews and UI standards.

Technical Skills:

• 7 plus years of professional experience in building large-scale web-based applications using JavaScript/TypeScript, HTML, CSS, SASS.
• 5 plus years of strong hands-on experience with ReactJS, Redux.
• Thorough understanding of React.js (JSX), Redux and its core principles.
• Strong proficiency in JavaScript, JavaScript object model, RESTful APIs, DOM, and the relevant concepts.
• Proficient understanding of Progress Web Applications (PWA), and Single Page Applications (SPA).
• Strong proficiency with Vite.js (or equivalent modern tooling), including configuration, optimization, and best practices.

Strong experience with modern UI frameworks and component libraries, specifically:

• Material UI (MUI) (required)
• AG Grid (required)
• Other libraries like Bootstrap (nice to have)
• Proficient understanding of the React build chain through Webpack/Rollup.
• Experience with Storybook (Directory of UI components) is a plus.
• Sufficient knowledge of NodeJS.
• Experience with modern frontend build pipelines and tools (e.g., dependency management using NPM, YARN, or BOWER).
• Experience with browser-based debugging, and error checking.
• Automated unit testing tools such as Jest, Enzyme, React-testing-library and end-to-end testing tools such as, WebDriver IO, Cypress, or other Selenium-based technologies.
• Experience with code versioning tools such as git.
• Strong time management, interpersonal, and communication abilities.
• Enthusiastic contributor with positive, can-do attitude.

Preferred Qualifications:

• Bachelor’s degree, ideally in Computer Science, Financial Engineering or a related quantitative discipline
• Prior experience with financial services companies desired but not necessary

Must Have Qualifications:

• 7 plus years of relevant experience, with strong expertise in React 18, JavaScript/TypeScript, HTML, CSS, SASS, Material UI, Restful APIs, and Single Page Applications.
• Must have experience with modern build tooling such as Vite.js, including configurations and optimization.
• Experience with testing frameworks like Jest, React Testing Library, Cypress, etc is a plus.