Custom Web Development with React & Next.js

Custom Web Development

Custom web development at ApexDev starts with architecture, not code. Every project begins with a structured discovery phase: user flows are mapped, technical constraints defined, and system architecture established before a single component is written. This eliminates the rework that accounts for 30–40% of cost overruns on projects that skip the discovery phase and jump straight to implementation.

Our primary stack is React and Next.js with TypeScript. TypeScript is non-negotiable on all projects — it eliminates entire categories of runtime errors before they reach production and keeps codebases maintainable by teams that did not write the original code. Next.js handles server-side rendering, static generation, and edge functions in a single framework, removing the need for separate services to manage rendering strategy.

Performance is built in, not optimized at the end. Every component is engineered against Core Web Vitals targets: LCP under 2.5 seconds, CLS under 0.1, and FID under 100ms. These are constraints that shape every architectural decision — image formats, component loading strategy, JavaScript payload size, and server-side rendering scope. Our production web applications average an LCP of 1.8 seconds.

We have delivered web applications for clients in medical SaaS, legal services, industrial engineering, and e-commerce — each with different compliance requirements, user profiles, and technical constraints. A medical SaaS dashboard used by clinicians has different latency tolerance and accessibility requirements than a high-traffic e-commerce storefront. The stack and architecture adapt to the problem; the engineering standard does not.

Typical web development projects range from 4 to 12 weeks. A 4-week engagement produces an MVP-scope web application — authentication, core user flows, and production deployment. A 12-week engagement delivers a full-featured product with admin tooling, third-party integrations, and comprehensive QA. Scope is locked before development begins. If requirements change mid-project, we assess impact and communicate it immediately — not at the deadline.

Post-launch support is available through monthly retainer agreements covering maintenance, performance monitoring, dependency updates, and iterative feature development. Most clients retain us for 3–6 months post-launch. A shipped product is the start of the optimization process, not the end of the engagement.

/003/ — Tech Stack

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/005/ — PROJECT TYPES