Senior Frontend React Developer – State Management

DataPro Services

Freelance · Remote · Flexible hours

About the role

DataPro Services is modernizing a legacy production platform that must stay online 24/7. We need a Frontend React Developer to rebuild the UI layer, improve performance, and ensure zero‑downtime releases while collaborating with backend and DevOps teams.

Key responsibilities

• Design and implement responsive React components using TypeScript.
• Refactor existing codebase to adopt modern state management and routing.
• Integrate UI with APIs while preserving live traffic through feature flags.
• Write unit and integration tests to guarantee stability during deployments.
• Participate in code reviews and contribute to a shared component library.

Must-have skills

• Strong experience with React, JavaScript, TypeScript, HTML, and CSS.
• Proven track record modernizing legacy frontends without service interruption.
• Familiarity with CI/CD pipelines and feature‑flag strategies.
• Ability to produce clean, maintainable, and well‑documented code.

Nice to have

• Experience with Redux or Zustand for state management.
• Knowledge of performance profiling tools.
• Understanding of accessibility standards (WCAG).