Hire a Freelance Next.js Developer for SaaS Products and Web Apps
I'm a senior full-stack engineer with 7+ years of experience building production Next.js applications: multi-tenant SaaS platforms, dashboards, and SEO-critical sites. If you need a Next.js developer who can own the build from architecture to deployment, you can hire me directly, with no agency in between.
What you can hire me for
SaaS web applications
Authentication, roles and permissions, subscription billing, admin panels and API design built on the Next.js App Router and Node.js or Laravel backends.
MVPs and product launches
A focused first version shipped fast, with a codebase that is clean enough to keep building on after launch.
SEO-critical sites and blogs
Server-rendered pages, metadata, structured data, sitemaps and Core Web Vitals work so your content is indexed properly.
Migrations and performance audits
Move an existing React or Pages Router app to the App Router, or find and fix what is making your current app slow.
AI features
LLM-powered features such as chat, summarisation and automation workflows, integrated into your Next.js product.
Ongoing feature development
A retainer for teams that need a senior engineer to keep shipping without a full-time hire.
Results from past projects
freelancer status on Upwork
performance gain on a real estate transaction platform used by JLL and Cushman & Wakefield
on a CRM serving 2M+ users
report generation on a financial compliance platform for KPMG
operational costs delivered for NanoByte Technologies
Technologies I use
- Next.js (App Router)
- React
- TypeScript
- Node.js
- Laravel
- PostgreSQL
- Supabase
- AWS
- Vercel
- Docker
- Tailwind CSS
Who this is for
- Startup founders who need a senior engineer to build or rescue a product
- Agencies that need a dependable Next.js specialist for client work
- B2B teams adding a web app or portal to an existing business
- Engineering teams that need to move fast without a full-time hire
How I work
- Step 1
Scoping call
A free 30-minute call to understand the product, constraints and timeline.
- Step 2
Plan and estimate
A written scope with milestones, so you know what gets built and when.
- Step 3
Build with weekly demos
Async-first communication and a working demo every week.
- Step 4
Launch and handover
Deployment, documentation and support after release.
What does a Next.js developer actually do?
Next.js is a React framework that handles routing, server rendering, data fetching and deployment in one place. A Next.js developer builds the interface, the server logic that feeds it, and the configuration that makes pages fast and visible to search engines.
For a SaaS product that usually means a marketing site, a logged-in application, authentication, billing, an API layer and a deployment pipeline. A good Next.js developer understands all of those layers, not only the components on screen.
When Next.js is the right choice, and when it isn't
Next.js is a strong fit when pages must be found on Google, load quickly for first-time visitors, or mix public content with a logged-in app in one codebase.
- Good fit: SaaS products with a public site and a dashboard, content-heavy sites, e-commerce storefronts, and products where SEO matters.
- Weaker fit: a purely internal tool behind a login, where a plain React app or a simpler stack may be quicker and cheaper.
- Worth a conversation: real-time heavy products such as collaborative editors, where the server model needs careful design.
Skills to look for when you hire a Next.js developer
Many developers list Next.js on a profile after building a small project. Production experience shows up in a few specific places.
- App Router and server components: knowing what should render on the server and what needs to be a client component.
- Caching and revalidation: how static pages, incremental regeneration and dynamic routes affect speed and freshness.
- SEO fundamentals: metadata, canonical URLs, structured data, sitemaps and how content reaches Google.
- TypeScript and testing habits that keep a growing codebase safe to change.
- Backend and database experience, so the frontend is not built on a weak foundation.
- Deployment and monitoring on Vercel or AWS, including environment handling and error tracking.
How to write a good brief for a Next.js project
You do not need a formal specification. A short brief that answers a handful of questions lets a developer give you a realistic estimate.
- What is the product, and who are the first users?
- Which three features must exist on launch day?
- Is there an existing codebase, design or API to work with?
- Which integrations are required, such as payments, email or AI providers?
- What is your target launch date, and what happens if it slips?
- Who will maintain the code after launch?
Common mistakes when hiring a Next.js developer
Most failed engagements share the same few causes, and all of them are avoidable.
- Hiring on price alone, then paying twice to rebuild code that cannot be extended.
- Skipping scope, so the project grows without a fixed definition of done.
- Choosing a stack for fashion instead of fit.
- No handover plan, leaving the code understood by only one person.
- Ignoring SEO until after launch, when fixing rendering problems is expensive.
What clients say
Feedback from 5-star projects on my Upwork profile.
“Outstanding experience working with Zagham on our SaaS platform. He understood the requirements immediately, executed the build flawlessly, and handled edge cases with great problem-solving skills. Fast turnaround, great communication, and top-tier code quality. 10/10 developer.”
“Really happy with the updates. New features were added to our e-commerce site exactly as requested, with great communication throughout the project.”
“Love working with Zagham as always!”
“Very responsive and quick to get things done.”
“Very responsive. Quick and efficient with his work.”
Frequently asked questions
Why hire a freelance Next.js developer instead of an agency?
You work directly with the engineer writing the code. There is no account manager layer, communication is faster, and you avoid agency overhead. For a focused product build, a senior freelancer is usually the leaner option.
Do you use the Next.js App Router?
Yes. I build new projects on the App Router with server components where they fit, and I can migrate existing Pages Router apps.
Can you work with my existing codebase?
Yes. I regularly join existing projects, review the code, and either extend it or propose a clear plan to fix what is holding it back.
Can you handle the backend as well as the frontend?
Yes. I build the full stack: APIs in Node.js or Laravel, PostgreSQL databases, authentication, payments, and AWS or Vercel deployment.
How do we get started?
Book a free 30-minute call or email me a short brief. I will reply with questions and a proposed next step.
Which time zones do you work in?
I work async-first and schedule calls in overlap windows with your team, including US business hours. Tell me your time zone on the first call and we will agree on a schedule.
How much does it cost to hire a Next.js developer?
It depends on the scope, not only the hourly rate. A lean SaaS MVP typically runs $15,000 to $60,000 and takes 8 to 16 weeks. Smaller pieces of work, such as an audit or a single feature, cost far less. A written scope after the first call gives you a firm number.
How long does it take to build a Next.js app?
A marketing site can take a couple of weeks. A SaaS MVP usually takes 8 to 16 weeks depending on features and integrations.
Is Next.js good for SEO?
Yes, when it is set up properly. Server-rendered pages give search engines your content in the first response. The framework does not guarantee good SEO by itself, so metadata, sitemaps and page structure still need attention.
Can you migrate my React app to Next.js?
Yes. Migrations are done in stages so the site keeps working, starting with the pages that benefit most from server rendering.
Freelancer, agency or full-time hire for a Next.js project?
A senior freelancer suits a focused build with a clear scope. An agency suits large projects that need design, project management and several developers. A full-time hire makes sense when you have continuous work for at least a year.
Tell me about your project
Book a free call or send a short brief. I reply within one business day.