Javascript (React.js, Vue.js, and Next.js) Web App Development

Pro

neWwave Studio

Starting at

2,500

/mo

About this service

Summary

I design and ship production-grade web apps that are fast, secure, and easy to evolve. My core stack is React and Next.js with TypeScript, tuned for performance, accessibility, and clean DX.

Core capabilities

Next.js App Router, Server Components, SSR, ISR, edge rendering on Vercel

Strong typing end to end with TypeScript, Zod, tRPC or GraphQL

Data layer with Postgres and Prisma, or Firebase and Supabase when speed matters

Real time via WebSockets, SSE, or GraphQL subscriptions

Payments, auth, and subscriptions with Stripe, OAuth, Clerk, or Firebase Auth

AI features using OpenAI for search, content generation, and recommendations

Design system with Tailwind, Radix UI, and accessible components meeting WCAG 2.2 AA

Quality and velocity

Core Web Vitals and Lighthouse 90 plus targets

CI, preview environments, and automated checks with GitHub Actions

Testing with Playwright, Vitest, React Testing Library

Observability with Sentry, Logtail, and PostHog or GA4

Integrations

CMS, Sanity or Contentful for editorial control

Storage and media with S3, Cloudflare R2, or Supabase Storage

Email, Resend or Postmark, and background jobs with Inngest or Queue workers

How I deliver

Align on outcomes, KPIs, and critical user journeys.

Define data models, API contracts, and roles and permissions.

Ship an MVP slice in 7 to 10 days, iterate in tight cycles.

Harden, measure, and scale with caching, queues, and CDN strategy.

Process

Discovery & Scope Lock

60–90 min technical workshop to define business goals, user journeys, success metrics.

Deliverables: Feature list with must/should/could, API inventory, performance budget (LCP ≤ 2.5s, CLS ≤ 0.1), and security baseline (OWASP ASVS L1).

Architecture & Tech Spec

Choose React or Next.js (SSR/SSG/ISR) with TypeScript, Tailwind/shadcn UI, Zod for runtime validation.

Data layer: REST/GraphQL/tRPC; caching with React Query/SWR; state via Zustand (or Redux if complex).

Draft API contracts (OpenAPI/GraphQL SDL), ERDs, and integration plan (Auth, payments, storage, search).

Design System & Foundations

Tokenized theming, responsive grid, accessibility primitives (WCAG 2.2 AA).

Component library with story-driven development (Storybook). Visual regression guardrails.

Implementation (Iterative)

Page-level rendering strategy (SSR/ISR/edge) per route.

Forms with react-hook-form + Zod; optimistic UX; error boundaries; skeletons.

Security: HTTP-only cookies, CSRF, rate limits, strict CSP & security headers, input sanitization.

API Integration & Backends

Wire up external/internal APIs (Stripe, Firebase/Supabase/Xano, etc.) behind typed clients.

Contract tests against mock servers; retry/backoff patterns; idempotent mutations.

Quality Gates

Unit/integration tests (Jest/Vitest + RTL), e2e (Playwright).

Lighthouse/ Web Vitals gate in CI; bundle analysis; dead-code elimination, image optimization.

CI/CD & Environments

GitHub Actions with preview URLs per PR (Vercel/Netlify/AWS).

Blue-green or canary deploys; automated migrations where applicable.

Observability & Hardening

Monitoring: Sentry, OpenTelemetry traces, server logs.

DDoS mitigation, WAF-ready, audit for common OWASP Top 10 and misconfigurations.

Handoff & Documentation

Tech docs: architecture, env vars, runbooks, API clients, test coverage, playbooks.

Admin training + 2 weeks of hypercare (bug hotfix SLA).

Scale & Evolve

Roadmap for feature flags, A/B testing, i18n, edge caching, and PWA/offline if relevant.

FAQs

React or Next.js—what do you recommend?
Next.js for anything SEO-sensitive or dynamic at scale (SSR/ISR, edge caching). Pure React only for embedded widgets or purely client-side apps. I’ll advise per route and mix as needed.
How do you ensure performance?
We set a performance budget on day one, enforce Web Vitals in CI, optimize images/fonts, split bundles, cache aggressively (SWR/React Query + HTTP/CDN), and use ISR/edge rendering where it wins.
What about security and compliance?
OWASP ASVS-aligned checklists, strict CSP/security headers, input/output validation (Zod), auth best practices (HTTP-only cookies/OAuth/OpenID), secrets rotation, and audit logs. GDPR/CCPA supported via data export/delete flows.
Can you integrate with our existing APIs/CMS/DB?
Yes. I work contract-first (OpenAPI/GraphQL SDL), create typed clients, add contract tests, and handle auth schemes (JWT, OAuth, API keys). CMS options: Headless (Strapi, Contentful, Sanity), Firebase/Supabase, or your stack.
How do you handle scalability?
Stateless services on serverless/edge where suitable, ISR for high-read traffic, queues for heavy writes, CDN for assets, and connection pooling. We design for horizontal scale from day one.

What's included

React/Next.js Web Application Development
Develop a fully customized web application using React or Next.js, tailored to your business requirements. This includes frontend and backend development, seamless integration with APIs, and ensuring a responsive and user-friendly interface.
Advanced Feature Implementation
Integrate advanced features such as dynamic data handling, real-time updates, user authentication, and custom widgets. These features will be designed to enhance user engagement and improve overall functionality.
API Integration and Management
Implement and manage API integrations to connect your web application with third-party services, ensuring efficient data exchange and enhancing app capabilities. This includes setting up RESTful APIs and ensuring secure data handling.
Performance Optimization and Testing
Optimize the performance of your web application to ensure fast load times and smooth operation. Conduct rigorous testing to identify and fix bugs, ensuring a robust and reliable application ready for deployment.
Continuous Deployment and Maintenance
Set up continuous deployment pipelines to automate updates and maintenance tasks. Provide ongoing support to ensure your web application remains up-to-date, secure, and efficient, minimizing downtime and enhancing user satisfaction.

Example projects

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VeriPlan: Advanced Construction Audit App by neWwave Studio

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Lee Serie E-commerce

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SimplePay by RealSimpleLabs

Recommendations

(5.0)

FocusKPI Inc • FocusKPI

Client • Sep 19, 2025

Recommended

Pich’s team has been responsible and creative. They went beyond the original scope, helped research solutions, and stayed responsive. Their dedication and problem-solving have made our collaboration smooth and productive.

Sebastian Kipman • Astute Brands

Client • Sep 18, 2025

Recommended

Pich and NeWwave team have been great to work with. They understood my project from Day One and built it as outlined in our product roadmap, even staying flexible and accommodating unexpected changes and challenges along the way.

Abram Olmstead

Client • Sep 13, 2025

Recommended

Working with Pich has been a highlight of my career. His work ethic, attention to detail, and expertise are beyond incredible. He and his company have my highest possible recommendation; I look forward to working together again and again.

DJ Weymouth • Magmar Solutions LLC

Client • Aug 28, 2025

Recommended

Newwave did an amazing job! Super responsive, fast, and open to discussions to make sure we achieved the best solutions. Will absolutely work with them again!