React is one of the most common skills listed on developer resumes, which makes "React experience" close to useless as a filter on its own. The developers who write maintainable, performant React and the ones who just get something rendering on screen can look identical on paper. This guide covers what actually distinguishes them, and how to structure the hire once you've found the right person or team.
React vs. a Meta-Framework Like Next.js
Worth clarifying before anything else, because it changes what "React developer" should even mean for your project: plain React is a UI library, and building a real production application with it requires assembling routing, data fetching, server rendering and build tooling yourself or via additional libraries. Most new production web projects today are built on a meta-framework — Next.js being the most common — which provides those pieces out of the box, along with its own conventions for server components, routing and rendering strategy.
A developer with deep plain-React experience doesn't automatically have deep Next.js (or equivalent framework) experience — the rendering model, data-fetching patterns and file-based routing conventions are genuinely different skills layered on top of React fundamentals. If your project is built on a specific framework, ask about that framework specifically, not just React in general.
What to Actually Look For
Component Architecture Judgment
Good React developers think about component boundaries deliberately — what's reusable, what's co-located, when to split a component versus keep it together. This is harder to fake than syntax knowledge, and it's the single biggest predictor of whether a codebase stays maintainable as it grows.
State Management Decisions
Knowing when to reach for local component state, context, or a dedicated state-management library — and, just as importantly, when not to — signals real production experience. Overusing global state or context for things that should be local is a common sign of someone who's learned React from tutorials rather than shipped real products with it.
Testing Habits
Ask directly whether and how they test React components. A candidate who has a clear, practical answer (not necessarily 100% coverage, but a real testing philosophy) is generally a stronger production hire than one who treats testing as optional.
Performance Awareness
Unnecessary re-renders, unoptimized list rendering, and bundle-size bloat are common React performance issues. A developer who can talk through how they'd diagnose and fix a real performance problem — not just name the tools — has likely dealt with this at scale before.
Accessibility Awareness
Semantic HTML, keyboard navigation, and proper ARIA usage where needed are often skipped by developers focused purely on visual output. Asking how they approach accessibility is a quick way to separate developers who think about the whole user base from those who don't.
TypeScript Fluency
Most production React codebases today are written in TypeScript, not plain JavaScript. A candidate who treats types as documentation and safety — writing precise interfaces, avoiding `any` as a default escape hatch — tends to produce noticeably more maintainable code than one who bolts types on loosely as an afterthought. If your codebase is TypeScript, ask about this specifically rather than assuming general React skill implies it.
A better interview question than React trivia
Instead of asking someone to define what a hook is, ask them to walk through a real component they built: why they structured it that way, what they'd do differently now, and how they'd handle a specific edge case. The answer reveals judgment that syntax questions can't.
React Specialist vs. Full-Stack Developer
A component-heavy, highly interactive frontend — a dashboard, a design tool, a real-time collaborative app — benefits from a genuine React specialist with deep frontend performance and architecture experience. A more typical business application with standard CRUD screens is often better served by a full-stack developer with solid React skills who can also work across the backend, since that reduces coordination overhead.
Junior vs. Senior: What You Actually Get at Each Level
A junior React developer can typically implement well-specified components and features quickly and cheaply, but usually needs architectural decisions made for them — component boundaries, state-management structure, testing strategy. A senior developer makes those decisions and, importantly, can spot when a seemingly simple feature request has a nasty edge case or performance implication before it becomes a problem in production. For a greenfield project or one with significant architectural decisions ahead, that judgment is worth paying for; for well-defined, incremental feature work on an already-established codebase, a strong mid-level or junior developer working under senior review can be a genuinely cost-effective choice.
Engagement Models
React developer engagement models
| Model | Best Fit | Tradeoff |
|---|---|---|
| Freelancer | Narrow, well-defined frontend task | You manage coordination and continuity yourself |
| Agency (project-based) | A defined frontend build with clear scope | Less flexible once requirements shift mid-project |
| Dedicated developer/team | An evolving product with ongoing frontend work | Higher committed cost, but continuity and context retained |
A Practical Way to Run the Evaluation
A live coding exercise done entirely from scratch under time pressure tests something closer to interview performance than day-to-day production skill, and it tends to favor candidates who happen to be comfortable performing under that specific kind of pressure rather than the ones who'd actually do the best work on your codebase. A more realistic alternative: give the candidate a small, real (or realistically messy) piece of existing code and ask them to extend or refactor it, then walk through their reasoning afterward. This mirrors what the job actually is — working inside an existing codebase, not building something from a blank file — and it surfaces judgment about legacy code, naming, and incremental change that a from-scratch exercise usually doesn't.
For a portfolio review, ask the candidate to pick the project they're most proud of and explain what they'd do differently if they rebuilt it today. A candidate who can name real limitations in their own past work, and explain why, is showing exactly the kind of self-aware technical judgment that's hard to fake and hard to teach.
Red Flags to Watch For
- Can't explain a specific tradeoff from a past project — only general statements about "best practices."
- No familiarity with testing, or dismisses it entirely as unnecessary.
- Portfolio consists only of tutorial-style clone projects with no real production complexity.
- Can't discuss how they'd approach a performance or accessibility issue when asked directly.
- Claims deep expertise in a specific meta-framework (Next.js, Remix) but can't explain a core concept specific to it — like the difference between server and client components, if that's relevant to your stack.
How Apptechies Hires and Staffs React Developers
Our dedicated development teams and hire React developer engagements are staffed with developers evaluated on real code and architecture judgment, not just resume keywords — the same standard covered in this guide. Frontend work is scoped during discovery in our 7-phase delivery process, so you know upfront whether your project needs a React specialist or a full-stack developer with strong React skills.
