Sitecore at Assembly
A Sitecore partner with deep headless experience.
Sitecore Certified Professional Developer and Sitecore Certified Solution Architect credentials on staff, refreshed as the platform evolves. Actively engaged on XM Cloud client work today, with continuous delivery experience across the platform's recent generations.
Headless and composable has been Assembly's default approach with Sitecore for years.
Sitecore credentials
What we hold and what each credential means.
Certifications
Certified across Developer and Solution Architect
Senior practitioners hold Sitecore Certified Professional Developer and Sitecore Certified Solution Architect credentials, refreshed as the platform evolves.
Active engagement
XM Cloud client work today
Active XM Cloud client engagements at the time of this writing, with continuous delivery experience across the platform's recent generations. The patterns we apply are calibrated to how XM Cloud actually behaves in production now, not to how earlier Sitecore generations behaved.
Heritage
Built on Sitecore headless before it shipped
Our team was building on the Sitecore headless libraries while they were still in beta, working alongside the Sitecore engineers who created them. The headless and composable pattern has been Assembly's default approach with Sitecore for years.
The headless heritage
We've been delivering headless Sitecore for years.
Assembly was an early adopter of Sitecore's modern headless approach. The team was building on the Sitecore headless libraries while they were still in beta, working alongside the engineers who built the Sitecore JavaScript Services that became Sitecore Headless Services. The headless and composable pattern has been Assembly's default approach with Sitecore for years.
That depth shows up in architecture decisions. The decisions you make once on a Sitecore program (rendering strategy, content modeling for headless delivery, composable integration boundaries, operational observability) are advised by people who have lived with the consequences of those decisions across multiple production engagements.
What we do with Sitecore
Sitecore platform depth at production scale.
Three capability pillars across Sitecore work.
01 / IMPLEMENT
Sitecore on Azure end to end.
Sitecore as the content and composition layer. Azure as the foundation underneath. One accountable team designs and operates the Sitecore implementation, the Azure foundation it runs on, and the integrations that connect Sitecore to the rest of the digital estate. Most Sitecore shops do not run Azure. Most Azure shops do not run Sitecore. Assembly does both.
02 / MODERNIZE
Headless modernization without taking the site offline.
Legacy Sitecore implementations evolved onto a modern headless architecture incrementally. Page by page, section by section, sub-application by sub-application. The patterns we use were proven on multi-brand portfolios where the live site could not be taken offline and the modernization had to ship value continuously.
03 / OPERATE
Operate the Sitecore platform forward.
Managed services on Sitecore platforms in production. The strongest version of our managed services is on platforms we built ourselves. The team has the depth to take over implementations from other firms and operate them with confidence: launches, traffic spikes, content campaigns, brand adjustments, and the seasonal patterns that customer-facing platforms encounter.
Procurement Q&A
Common questions, real answers.
The questions that come up most often during evaluation, scoping, and vendor-selection conversations.
We're on Sitecore XP and considering XM Cloud. How does that work?
The XM Cloud transition is rarely a lift. What can be moved cleanly depends on how the existing XP implementation was built (template structure, customizations, Helix adherence, integrations). We start with an assessment that maps the existing implementation, identifies what's portable, what needs to be rebuilt, and what to deprecate, and produces a sequencing plan that ships the transition incrementally rather than as a single cutover. Most clients land on a hybrid approach: parts of the estate move to XM Cloud first, others stay on XP through a transition window.
We have an existing Sitecore implementation built by another firm. Will you take it over?
Yes. We onboard inherited Sitecore implementations regularly. The first phase is structured: an assessment of the existing setup, a stabilization plan, and a clear understanding of where the prior approach matched our principles and where it did not. Whether the original architecture matches Assembly's standards or not, we work with what's there and evolve it on the same architectural patterns we apply to greenfield work.
We're not sure if we should stay on Sitecore or migrate to a composable stack. Can you help us decide?
Yes, and we will not lock you in to the answer before the analysis is done. The stay-or-leave decision depends on the scale of your existing investment, the trajectory of your content needs, the technical debt in the current implementation, and what your roadmap requires. We bring senior architectural perspective to the evaluation, an honest read on Sitecore's current direction, and the experience of having delivered both Sitecore and composable platforms at enterprise scale. The output is a recommendation with the trade-offs surfaced clearly.
What does "Sitecore on Azure end to end" actually mean in practice?
It means the same senior practitioners design and operate the Sitecore implementation, the Azure foundation it runs on, the security posture, and the integrations that connect Sitecore to the rest of the estate. Architectural decisions follow the Microsoft Cloud Adoption Framework and the Azure Well-Architected Framework. Infrastructure-as-code, automated CI/CD, observability, and security tooling are designed in from the start, not added at the end. The platform is automatable from day one and operable by the team that built it.
Can we engage Assembly for Sitecore managed services on a platform we did not originally build?
Yes. We support Sitecore platforms in production whether we built them or not, with a structured onboarding to bring the existing implementation into our operations model. The strongest version of our managed services is on platforms we built ourselves, but the team has the depth to take over implementations from other firms and operate them with confidence.
How current is your XM Cloud experience?
Current. Assembly is engaged on XM Cloud client work today, including a complete web-presence overhaul on XM Cloud for a global engineering and management consultancy. Continuous delivery experience across the platform's recent generations means the patterns we apply are calibrated to how XM Cloud actually behaves in production now, not to how earlier Sitecore generations behaved.
Modern Sitecore tech stack
What we work with.
Headless Sitecore implementations on Azure, modern frontend frameworks, and the DevOps practices that make continuous delivery possible.
Where Sitecore work fits
Part of our Digital Experience Platforms practice.
Sitecore is one of several content platforms in Assembly's Digital Experience Platforms practice. The same patterns apply across CMS technologies: incremental modernization, headless architecture, multi-brand governance, operate-and-evolve engagements. Our Digital Experience Platforms team consolidates and modernizes complex content platforms on Sitecore, Drupal, Contentful, and similar.
Complex digital estates do not respect domain boundaries. Sitecore is often the customer-facing content layer that sits on top of an Azure foundation, integrates with custom applications, and feeds personalization data back into the rest of the estate. When the work spans applications, data, and infrastructure together with Sitecore, the engagement belongs inside our flagship Digital Estate Modernization work, with Sitecore as the experience layer across the domains.
Talk to the team