React Development Services

React development costs depend on seniority, team size, and engagement structure. A well-defined MVP with authentication, core features, and API integration falls in our MVP / Prototype range: $25K to $60K over 4 to 8 weeks with 2 to 3 engineers. A complex SaaS platform with advanced permissions, real-time features, and mobile responsiveness is a Production Application build: $60K to $200K over 3 to 5 months. We provide a detailed scope estimate with confidence ranges after a discovery call, because we don't quote timelines before we understand what we're building. All engagements include architecture design, code review, testing, and deployment configuration in the quoted scope.

Our vetting process for React engineers covers three dimensions: technical depth, communication quality, and professional track record. Technically, candidates complete a take-home assessment that requires them to build a non-trivial React component with proper state management, handle async data fetching with loading and error states, and write tests using React Testing Library. They then do a live technical interview covering architecture decisions, performance optimization approaches, and TypeScript. Communication is assessed through a structured English conversation. We look for engineers who can explain technical tradeoffs clearly, ask good clarifying questions, and push back professionally when scope is unclear. Professional references are checked for prior client engagements.

Yes, WCAG 2.1 AA compliance is a requirement for many of the clients we work with (healthcare, government contractors, enterprise software), so accessibility practices are part of our standard React development process rather than a bolt-on. At the component level, we use semantic HTML elements, ARIA attributes where semantic HTML is insufficient, keyboard navigation support for all interactive elements, and focus management for modal and drawer patterns. At the testing level, we use axe-core via jest-axe and Playwright's accessibility assertions to catch violations in CI before they reach production. Visual contrast ratios are verified against WCAG 2.1 AA standards as part of design review. We can also run an audit against an existing React application and produce a prioritized remediation list if your current product has accessibility debt.

Knowledge transfer is structured throughout the engagement, not deferred to a final sprint. Architecture decision records (ADRs) document significant technical choices as they're made. Component documentation is written in Storybook for UI components. The README is kept current with setup instructions, environment configuration, and deployment procedures. At engagement end, we conduct two structured handoff sessions: a technical walkthrough covering architecture, data flow, integration points, and known technical debt; and a deployment and operations walkthrough covering the CI/CD pipeline, monitoring, alerting, and runbooks for common failure scenarios. Your team can extend and operate the codebase without needing to call us after handoff, that's the standard, not an exception.

Codieshub engineers work hours that overlap your US or UK day. We schedule daily stand-ups and sprint ceremonies inside that overlap, and engineers are active on Slack for synchronous questions, code review, and ad-hoc calls. Outside the overlap, engineers work asynchronously on implementation, pull requests, and documentation, so those hours stay productive. When an engagement needs more live coverage, we agree on an adjusted schedule up front.