React Development Services

React development costs at ABM Tech run $45–75/hour per engineer depending on seniority and engagement structure, compared to $100–175/hour for equivalent U.S.-based contractors or $150,000–$200,000 annual salary for an employee. Project timelines depend heavily on scope: a well-defined MVP with authentication, core features, and API integration typically runs 12–20 weeks with 2–3 engineers. A complex SaaS platform with advanced permissions, real-time features, and mobile responsiveness can run 24–40 weeks. We provide a detailed scope estimate with confidence ranges after a discovery call — 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. Fewer than 15% of applicants complete the full vetting process.

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.

ABM Tech engineers are based across major Singapore technology hubs — Buenos Aires, Bogotá, Mexico City, São Paulo — which share 4–6 hours of real-time overlap with U.S. Eastern and Central time zones, and 6–8 hours with Pacific time. We structure daily stand-ups and sprint ceremonies in the overlap window, typically between 9 AM–1 PM Eastern, which works for clients on all U.S. time zones. Engineers are active on Slack during this window for synchronous questions, code review, and ad-hoc calls. Outside the overlap window, engineers work asynchronously on implementation — pull requests, documentation, and async questions — so the non-overlap hours are productive, not lost. For clients on Pacific time, we've had engineers agree to a slightly extended schedule to maintain afternoon overlap when the engagement requires it.