Sr Front End Developer

ViziRecruiter,LLC.; New Hampshire; On-site; USD 120,000 - 150,000; Full time

Job summary

ViziRecruiter, LLC. is seeking a Senior Front-End Developer to design, build, and maintain a modern web application using React and TypeScript. You will lead complex frontend initiatives, guide quality practices, and collaborate with cross-functional teams in a fast-paced environment.

Applicants must be authorized to work in the United States. The role emphasizes scalable UI, robust components, and responsive design, with opportunities to influence architecture and performance improvements.

Qualifications

• Strong experience building modern web applications with React and TypeScript.
• Solid understanding of JavaScript (ES6+), HTML5, CSS3, and responsive design principles.
• Experience with Material UI (MUI) or similar component libraries.
• Familiarity with front-end tooling and workflows (Vite, npm, Git).
• Experience consuming RESTful APIs and integrating with front-end apps.
• Knowledge of state management and asynchronous data patterns.
• Experience with SDLC, code reviews, testing, and source control.
• Experience working in Agile environments.

Responsibilities

• Design, develop, test, and implement features for modern web applications using React, TypeScript, and related front-end technologies.
• Collaborate with cross-functional teams to deliver high-quality software solutions that meet business requirements.
• Participate in architecture, component design, and implementation approaches.
• Translate business requirements into scalable, maintainable software solutions.
• Adhere to SDLC best practices, including code reviews, testing, and deployment processes.
• Diagnose, troubleshoot, and resolve defects and performance issues.
• Develop and maintain technical documentation and support materials.
• Ensure coding standards, security requirements, and policies are followed.
• Contribute to continuous improvement by evaluating modern tools and best practices.
• Perform other duties or special projects as assigned.

Skills

React

TypeScript

JavaScript ES6+

HTML5

CSS3

UI/UX principles

REST APIs

Vite

npm

Git

Agile

Tools

Vite

npm

Git

Job description

Working under minimal supervision of the Manager, Web Development, the Senior Front‑End Developer is responsible for designing, developing, maintaining, and enhancing a modern web application using React, TypeScript, and related front‑end technologies. This role independently leads complex development efforts, provides technical guidance, and collaborates with cross‑functional teams to deliver scalable, high‑quality user experiences.

Applicants must be authorized to work for any employer in the United States. We are unable to sponsor or take over sponsorship of an employment visa at this time.

Responsibilities

• Design, develop, test, and implement features and functionality for modern web applications using React, TypeScript, and related front‑end technologies.
• Collaborate with developers, architects, analysts, UX designers, QA Engineers, and business stakeholders to deliver high‑quality software solutions that meet business requirements.
• Participate in application design and technical planning activities, contributing to architecture, component design, and implementation approaches.
• Translate business requirements and functional specifications into scalable, maintainable, and reusable software solutions.
• Leverage software development lifecycle (SDLC) best practices, including source control, code reviews, testing, and deployment processes.
• Diagnose, troubleshoot, and resolve application defects, performance issues, and production support requests.
• Develop and maintain technical documentation, including design specifications, implementation details, and support documentation.
• Ensure applications adhere to established coding standards, style guides, security requirements, policies, processes, and procedures.
• Contribute to continuous improvement efforts by evaluating and applying modern development tools, frameworks, and best practices.
• Perform all other duties or special projects as assigned.

Requirements

Technical Competencies:

• Strong experience developing modern web applications using React and TypeScript.
• Strong understanding of JavaScript (ES6+), HTML5, CSS3, and responsive web design principles.
• Experience with Material UI (MUI) or similar component libraries.
• Experience with modern front‑end development tools and workflows, including Vite, npm, and Git.
• Experience consuming and integrating RESTful APIs.
• Experience developing forms, validation, and user input workflows.
• Understanding of application state management and asynchronous data patterns.
• Experience with Software Development Life Cycle (SDLC) methodologies, code reviews, testing practices, and source control.
• Experience working in Agile development environments.

Preferred Competencies:

• Experience with TanStack libraries, including React Query, React Table, and React Virtual.
• Experience with React Hook Form and validation libraries.
• Experience with internationalization/localization frameworks.
• Experience building data‑intensive applications, dashboards, reporting solutions, or eCommerce applications.
• Experience with advanced user experience patterns.
• Experience with modern front‑end architecture and performance optimization techniques.
• Familiarity with server‑side technologies such as .NET and PHP to support integration with front‑end React applications.
• Experience designing and implementing user interfaces that seamlessly incorporate AI features, utilizing LLM APIs and prompt engineering to deliver intuitive, responsive, and highly personalized user experiences.

Professional Competencies:

• Strong analytical, problem‑solving, and troubleshooting skills.
• Ability to manage multiple priorities and adapt to changing business needs.
• Self‑motivated with the ability to work independently with minimal supervision.
• Strong attention to detail and commitment to delivering high‑quality software.
• Effective verbal and written communication skills.
• Strong collaboration and interpersonal skills with the ability to work effectively across technical and business teams.
• Ability to quickly learn new technologies, tools, and business processes.
• Commitment to continuous learning and professional development.
• Demonstrated initiative, accountability, and a customer‑focused mindset.