Bold, pragmatic bets separate teams that merely deliver from teams that truly accelerate. As a product leader, I’m drawn to decisions that reduce friction, empower engineers, and compound over time. Intercom’s recent investment in a new frontend direction is a standout example of this mindset—and it offers lessons any product, engineering, or design leader can apply.
Over the past two years, Intercom made one of the most significant changes an engineering organization can make: moving its core frontend from Ember to React. That choice fits a clear pattern of high-agency decision making in service of speed, quality, and developer experience.
Back in 2014, Ember was the right call for their main application. Its strong opinions and “batteries-included” approach aligned with a strategy I respect: make big decisions once, enable teams to move fast, and spend energy on customer problems instead of endless architecture debates. The result was scale few achieve—more than two million lines of code and 100,000+ pull requests merged.
I’ve been in the room when constraints outgrow the original bet. By 2023, “local builds stretched beyond 90 seconds,” and they were stuck on older framework versions that blocked adoption of modern build tools. Even with deep community engagement and contributions to the Embroider Initiative, the cost of staying put was compounding. Something had to change.
What I admire is the rigor behind their pivot. They ran workshops, health checks, and set explicit trigger conditions—then honored those triggers. When the evidence crossed the threshold, they chose a new path and framed the work with a clear, galvanizing banner: “The Future of Frontend.” That’s the kind of governance and narrative clarity that de-risks large platform shifts.
React quickly emerged as the right fit—not because of hype, but because it met practical criteria at scale. “React was already a core technology at Intercom (powering Messenger, Help Center, and our marketing site),” backed by a robust ecosystem, strong documentation, and broad familiarity internally and across the industry. Most importantly, it integrates naturally with AI-driven developer tools—a non-negotiable for the next decade of engineering productivity.
Fast forward to today, and the momentum is clear. “React is now the default for new UI development at Intercom.” That single sentence says a lot about organizational alignment and execution readiness.
The outcomes speak for themselves. “Blazing fast feedback loops: React builds in under 10 seconds locally, with sub-1s rebuilds – much faster than our Ember app’s 90+ seconds.” That kind of drop in cycle time unlocks more iteration, tighter designer–engineer collaboration, and faster learning loops.
Speed without joy is a half-win. “Higher developer velocity: Engineers consistently report being faster, happier, and more effective, particularly when paired with AI tools like Cursor, Augment, and Claude Code.” I’ve seen similar effects: once teams feel flow again, quality and ambition both rise.
Adoption at breadth matters as much as depth. “Wider adoption: Since March 2025, 10+ Product teams have shipped React features, contributing over 840 pull requests.” That level of traction signals a platform shift that’s not just technically sound but operationally viable.
The AI-enabled developer experience is the real unlock. “AI synergy: React just “clicks” with modern AI tooling. Designers and engineers are using agents to write code, generate components from Figma, and even build design playgrounds themselves.” That’s the future: product creators working in shared, generative environments where ideas move from Figma to code in minutes.
One engineer captured the productivity gain perfectly: “The work I had predicted would take me a week to achieve took me two days”. That’s not a marginal improvement—that’s a step-change.
This story isn’t just about frameworks; it’s about preparing for a decade where velocity, AI-native workflows, and developer experience determine competitive advantage. The ambition to “double our productivity over the next 12 months” requires removing friction, leaning into AI, and standardizing on tools that compound learning across teams. React is a pragmatic enabler for that journey.
I also appreciate the organizational design behind the change. A small, focused group—Team Frontend Tech—partnered tightly with Product teams to shape the new stack, build a design system, and accelerate adoption. That model creates a high-trust bridge between platform and product, which is essential for landing a migration at scale.
For leaders navigating similar crossroads, the playbook is clear: set explicit trigger conditions, articulate the future state, pick a stack that compounds with AI, and invest in a cross-functional nucleus to shepherd adoption. For engineers and designers, this is an exciting moment—one where your tools finally catch up with your ambition.
The takeaway I’m carrying forward: make the bold call when the evidence is conclusive, optimize for feedback loops and flow, and treat AI as a first-class partner in the creative process. That’s how we keep shipping fast, raise the quality bar, and focus on what really matters—solving meaningful problems for customers.
Inspired by this post on The Intercom Blog.
Leave a Reply