Web & Mobile Development

Software Built to Ship — Web, Mobile & APIs

Most teams don't have an idea problem — they have a delivery problem. We fix that: senior engineers who own the full stack, ship working software every sprint, and never go dark between updates.

The Challenge
Your team has a validated idea but not the engineering capacity to build it right the first time. Missed deadlines, scaling issues, and technical debt pile up when the foundation is wrong.

We solve this with a focused, sprint-based approach — senior engineers who own the outcome from day one.

Deliverables

What You Get

Full-stack web applications (Next.js, Node.js, PostgreSQL)
Cross-platform mobile apps (React Native / Expo)
API design and third-party integrations
Performance optimization and Core Web Vitals tuning
CI/CD pipelines and infrastructure setup
Ongoing maintenance and feature development

Stack

Built With

Next.jsReactReact NativeNode.jsTypeScriptPostgreSQLAWSVercelTailwind CSS

How We Work

From Kickoff to Launch

01

Discovery

We map your requirements, users, and constraints in a focused one-week sprint.

02

Architecture & Design

We design the system, data models, and UI before writing production code.

03

Sprint-based Build

Two-week sprints with working demos you can touch every cycle.

04

Launch & Handoff

We deploy, document, and hand off with full knowledge transfer.

FAQ

Common Questions

Deep Dive

Next.js, React Native & Node.js Development Services

Getting a web or mobile product built isn't hard. Getting it built right — on time, without rework, by engineers who stay on the project — is. DevNexus gives startups and product teams a single full-stack team using Next.js, React Native, Node.js, and TypeScript, with working software delivered every two weeks.

01

Next.js Web Application Development

We build full-stack web applications with Next.js App Router, TypeScript, and PostgreSQL. Every project ships with server-side rendering, optimized Core Web Vitals, structured data markup, and CI/CD pipelines configured from day one. SaaS platforms, admin dashboards, and customer-facing products — we build for performance and maintainability.

02

React Native Cross-Platform App Development

Our team ships production iOS and Android apps using React Native and Expo — a single codebase that performs natively on both platforms. We handle API integrations, push notifications, offline data sync, and App Store / Play Store submissions. Ideal for startups that need a polished mobile app without the cost of two separate teams.

03

Node.js API and Backend Engineering

We design and build REST and GraphQL APIs with Node.js, Express, and Fastify — backed by PostgreSQL, Redis, and cloud infrastructure on AWS or Vercel. Our backends are built to scale: rate limiting, queue-based processing, multi-tenant data isolation, and auth flows using JWTs and OAuth 2.0.

04

MVP Development for Startups

We scope, design, and ship focused MVPs in 6-10 weeks. Our process starts with a one-week discovery sprint to lock requirements, then two-week build sprints with working demos you can test each cycle. No black-box development — you see progress every 10 business days and hold us accountable to scope.

From idea to live product

Your next product launch starts here.

One conversation is all it takes. Tell us the problem — we’ll show you what’s possible.

Reply within 24hNo commitmentFree strategy call