Next.js is a React framework for websites and web apps that render on the server and in the browser.
Salesforce Select Partner · 5.0/5 client satisfaction · Delaware and Sydney
Next.js development for content sites, storefronts and SaaS front ends.
We build Next.js sites and applications, take over Next.js codebases other teams wrote, and move older versions and the Pages Router onto Next.js 16 and the App Router.
See how it works
- 15+Years of team experience
- 3Ways to engage: project, team or extension
- 60 minFree Next.js development review, with a written plan
- 5.0/5Client satisfaction (CSAT)
Proven Success With
5.0/5 CSAT
New to Next.js development?
What is Next.js development?
We build marketing sites, storefronts, portals and SaaS front ends, and upgrade older Next.js apps.
Work runs as a fixed-scope project, a dedicated team or Next.js engineers who join your team.
Starting point
Where are you with Next.js?
What does your Next.js work look like today?
- Path 01Nothing built yet
A new Next.js build
You need a new site, storefront or app front end built on Next.js.
- Started on Next.js 16 and the App Router
- Content model and CMS chosen early
- Playwright tests and preview deploys from the start
- Path 02We inherited a site
Taking over an existing Next.js app
An agency or former team built it, and nobody knows how it fits together.
- Code, dependency and performance review
- Build and deploy steps written down
- A written report and a plan
- Path 03It is out of date
Upgrading or modernizing
The app runs on Next.js 14 or earlier, the Pages Router, or a WordPress theme.
- Version stepped up to 16
- Routes moved to the App Router in stages
- WordPress kept as a headless CMS if wanted
A Next.js site or app on a supported version that your team can keep changing
What we do
What do our Next.js development services include?
Build, take over, upgrade and staff Next.js work with one React team.
Marketing and content sites
01Search-ready sites with structured data and a CMS your team can edit.
E-commerce storefronts
02Headless storefronts connected to your commerce platform and payments.
SaaS front ends and portals
03Signed-in apps with Auth.js sign-in and role-based access.
Headless CMS builds
04WordPress or another CMS kept for content, Next.js for the front end.
Next.js upgrades
05Next.js 13, 14 or 15 moved to 16, and the Pages Router moved to the App Router.
Performance and Core Web Vitals
06Slow pages traced to images, scripts or data fetching, and fixed.
Salesforce integration
07Forms and portals that read and write Salesforce data from server code.
Next.js team extension
08Next.js engineers who join your team and work in your process.
Stack
The Next.js stack we work with
Next.js with the React, data and testing tools most teams already know.
- React
- Server Components
- Tailwind CSS
- Next.js
- App Router
- Auth.js
- Prisma
- Drizzle
- Headless CMS
- Vitest
- Playwright
- Vercel
- Docker
Upgrades
Which Next.js versions are still supported?
Next.js 16 is the Active LTS release. Next.js 15 gets security fixes until 31 January 2027, and Next.js 14 and earlier get none.
TodayNext.js 14 or earlier on the Pages Router
- Next.js 16
Upgrade the version
Step through 15 to 16, update React and dependencies, and fix breaking changes route by route.
Next.js 14 and earlier are unsupported. 15 gets security fixes to 31 January 2027.
- App Router
Move from the Pages Router
Move routes to the App Router and Server Components in stages, with both routers running side by side.
Fits large apps that cannot move every route in one release.
- Headless Next.js
Move off a WordPress theme
Rebuild the front end in Next.js and keep WordPress, or another CMS, for content.
Fits sites where the theme limits speed, design or security updates.
Engagement
How can you work with our Next.js engineers?
Three ways to engage. Each one is agreed in a written proposal before work starts.
- Fixed-scope project
We deliver a defined site, app or upgrade.
- SynconAI directs the work to agreed milestones
- Billed by milestone, as set out in the proposal
- A live site, tests and documentation
- Fits a launch, a rebuild or an upgrade
- Dedicated team
A Next.js team that works only on your product.
- You set priorities, our lead runs the team
- Billed monthly for the team
- Engineers, a lead and testing as needed
- Fits a product or site with a steady backlog
- Team extension
Next.js engineers who join your team.
- Your managers direct the day-to-day work
- Billed monthly for each engineer
- Vetted engineers, with employment and replacement handled by us
- Fits teams with a working process that need more hands
Process
How does a Next.js engagement start?
Five steps from the first call to a working site.
- Brief
- Call about your site and goals
- Repository access or a written scope
- Match or design
- Engineers matched to your stack
- Plan and proposal in writing
- Start
- NDA, access and preview deploys set up
- Codebase walkthrough and a first task
- Build and review
- Every change on a preview link
- Code review and demos with your team
- Hand over or continue
- Documentation and a handover session
- Or a monthly plan for ongoing work
Cost and timing
What it costs and how long it takes
The review is free
A 60-minute architecture review of your Next.js setup, with a written plan you keep.
A fixed-scope proposal first
Before any work starts you get a written proposal: a fixed-scope project with milestones, or a monthly plan. You approve it, or you do not.
Timing follows scope
How long it takes depends on what is in scope. The proposal states the milestones, so you see the timeline before you commit.
Client stories
Client work we have delivered
Real engagements, described by industry. Each story covers the starting position, what we built and how we delivered it, end to end.
Commercial & Business ServicesA Subscription Estimator and Technical Library for Fire Protection ProfessionalsA Next.js web application for a fire protection business: a searchable technical library and estimator with role-based access, manufacturer filtering, PDF output and subscriptions, with AI product identification in development.Next.js · Custom web application · Authentication and roles · SubscriptionsRead the story 
Communications, Media & TechnologyA Bilingual Knowledge Base That Answers Callers During a Major International EventA bilingual English and Japanese knowledge base for contact centre operators at a major international event: live answer suggestions, cross-language search with translated embeddings, operator content management and missing-question tracking.Custom AI · Vector search · Translated embeddings · Large language modelsRead the story 
EducationOne Tutoring Calendar Across Salesforce and TeachWorksSalesforce development for an Australian tutoring provider: a custom session calendar, two-way TeachWorks appointment sync, attendance and completion mapping, and session notes into after-session reports.Salesforce Platform · Lightning Web Components · Apex · TeachWorks APIRead the story Client reviews
What clients say about working with our architects
See how teams describe working with SynconAI, from first scope to production delivery.
Salesforce Select Partner30+ Salesforce certificationsDelivery from Delaware & Sydney, worldwide
Simply Outstanding
“SynconAI Consulting are Simply the Best in the Business When it comes to Salesforce implementation and AI-powered solutions, SynconAI are in a league of their own. Their expertise, dedication, and ability to deliver results that truly move the needle sets them apart from every other consulting partner we've worked with. What they achieved with our Sales Cloud, Service Cloud, and custom Agentforce agent has completely transformed how we operate streamlining our pipelines and our customer service, and automating tasks that used to consume hours of our team's time. They don't just implement technology they transform businesses. If you want the best, you work with their team.”
Sales CloudService CloudAgentforce
Jack BennettConsumer Goods & Retail · United States
“I had a very urgent deadline for our project reporting to be delivered and needed to build the module, dashboard and output reports in Salesforce. SynconAI were very responsive - they met with me online, responded to my emails quickly and took calls - whatever was needed to progress the work quickly. We are thrilled with the outcome and will continue to work with SynconAI in the future to continue to build our Salesforce capability and platform.”
Sales CloudService CloudNonprofit Cloud
Salesforce Managed ServicesAustraliaSalesforce Verified
“The team at SynconAI were fantastic, and promptly delivered on each project. They were able to guide us through every stage and made sure we were satisfied with the outcomes on multiple scopes of work.”
Sales CloudSlackFlowAgentforceMuleSoft
ManufacturingAustraliaSalesforce Verified
“They have been great and helping us transform out business by bringing what I conceptualize to life. Great at translating process/workflow needs into a solution. Been a pleasure work with and they're a critical part of our team and will be instrumental into bringing about my vision.”
Sales CloudFinancial Services CloudArchitectureAI
Financial ServicesUnited StatesSalesforce Verified
“Working with SynconAI was a seamless and highly professional experience from start to finish. They took the time to deeply understand our business processes before designing and implementing a Salesforce solution tailored specifically to our operational needs. The team demonstrated strong technical expertise across Salesforce configuration, automation, integrations, reporting, and user experience design.”
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Salesforce ImplementationSalesforce Verified
Frequently asked questions
Next.js development, answered.
Straight answers about Next.js builds, upgrades, engineers and how the work runs.
Building and supporting websites and web apps with Next.js, the React framework. We build content sites, storefronts, SaaS front ends, headless CMS sites, portals and documentation sites.
Next.js 16 is the Active LTS. Next.js 15 gets security fixes until 31 January 2027. Next.js 14 and earlier are unsupported, so we upgrade them first.
As a fixed-scope project with milestones, a dedicated team, or engineers who join your team. Scope, people and billing are agreed in a written proposal before work starts.
Yes. They work in your repositories, standups and code review, and your managers direct the work. We handle their employment and any replacement.
Each engineer goes through a technical interview on React and Next.js, a practical code task and a review with a SynconAI lead. You can interview them before they start.
Yes. Server code calls Salesforce through jsforce, a community library, or the REST, Bulk and Pub/Sub APIs with OAuth 2.0, so no credentials reach the browser.
Our hubs in Delaware and Sydney cover United States and Australian working hours, and we deliver remotely worldwide on your business hours. Overlap hours with your team are agreed before work starts.
Next.js and Vercel are trademarks of Vercel Inc. React is a trademark of the React Foundation. WordPress is a trademark of the WordPress Foundation. Salesforce is a trademark of Salesforce, Inc. Other names are trademarks of their owners. SynconAI is an independent consulting firm and is not affiliated with or endorsed by these organizations.
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