About NextJs Agency
A specialized Next.js development agency focused on building high-performance websites for founders and agencies who understand the value of modern web architecture.
Justin Mendez
Founder & Lead Developer
I'm an Army veteran with over a decade of experience in web development, SEO, CRO, and content strategy. I started NextJs Agency because I saw too many businesses struggling with slow, outdated websites that hurt their growth.
Before starting this agency, I built and shipped production Next.js sites for agencies, service businesses, and marketing teams. I've also spent years ghostwriting and crafting conversion-focused copy. I understand how marketing, SEO, and engineering intersect—because I've worked in all three.
My background in the military taught me discipline, reliability, and the importance of execution. I bring that same mindset to every project: clear communication, on-time delivery, and no excuses.
My Philosophy
Fewer Clients, Higher Quality
I intentionally limit the number of projects I take on. This isn't about exclusivity—it's about quality. Every site I build gets my full attention. No junior devs, no outsourcing, no cutting corners.
Performance is Non-Negotiable
Every site scores 90+ on Lighthouse. Every site passes Core Web Vitals. This isn't a feature—it's the baseline. Slow sites hurt your SEO, your conversions, and your credibility.
No Bloated Stacks
I use modern tools that make sense: Next.js, React, Tailwind, TypeScript. No unnecessary dependencies. No over-engineered solutions. Clean code that your team can maintain long after I'm gone.
You Own Everything
When we're done, you get the repo, the hosting, and full documentation. No lock-in, no proprietary systems, no monthly fees to access your own code.
Expertise
A decade of experience across development, SEO, and conversion optimization.
Next.js
App Router, SSR, SSG
SEO
10+ years experience
CRO
Conversion optimization
Copywriting
Ghostwriting & content
Core Web Vitals
Performance optimization
Vercel
Deployment & hosting
Let's Talk About Your Project
If you're looking for a technical partner who understands performance and SEO, let's chat.