
Norbert Baumann
VP R&D – Sonnen
"They treat the customer portal as their product and this resulted in the high quality of their work."
Node.js is one of the most popular web technologies around. It allows for the creation of apps for the world’s leading desktop platforms: Windows, MacOS and Linux. It uses the JavaScript V8 engine, created by Google and supported by the Google Chrome browser.
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Netflix cut its server-side application start-up time from 40 minutes to 1 minute after migrating its backend to Node.js – a concrete example of the performance gains the non-blocking runtime can deliver at scale.
Node's event loop handles thousands of concurrent connections without spawning a thread per request, keeping response times stable under high-concurrency workloads like APIs, chat, and streaming.
JavaScript/TypeScript runs on both server and client, letting the same engineers move across the stack and cutting the handoff time between frontend and backend work.
The npm ecosystem covers most infrastructure needs out of the box, so teams spend less time building plumbing and more time on product-specific logic – a direct factor in MVP speed.
WebSocket and event-driven patterns are native to the runtime, making Node.js the default choice for chat, live dashboards, and collaborative tools that need persistent connections.
Node.js applications run identically on serverless functions, containers, or a standard VM, so the hosting model can change without a rewrite of the application layer.
Async code without a clear pattern becomes callback chains that are hard to debug and slow to extend
Adding real-time features to an existing REST API requires rebuilding state handling and connection management
Other teams wait for a developer to expose or change every API endpoint
The same architecture is applied to every service, regardless of whether the workload is I/O-bound or CPU-bound
A blocked event loop or memory leak is found in production, not before it
Architecture is chosen per service: synchronous, event-driven, or queue-based, based on the actual workload
Node.js is integrated into an existing stack without a full rewrite
API-first design lets other teams build and ship independently
Event-loop performance and response times are measured from the first sprint
One team is responsible for both architecture and production stability
20+ years building scalable, server-side applications with Node.js. Talk to our team about your project.
Everything you need to know about Node.js development
From discovery to production – five steps, full transparency, AI-native delivery.
Structured needs-analysis call mapping scope, constraints, and success criteria – before any proposal.
Proven, battle-tested tools matched to your requirements, not built from scratch.
Detailed CAPEX/OPEX estimates. Choose validate-first (prototype → pilot) or a direct build for faster delivery.
Every sprint transparent: what was built, hours spent, budget remaining. Direct team access, no account-manager layers. Your code and IP, always.
AI embedded across the SDLC to speed up delivery. Final decisions and accountability stay with experienced engineers.
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Digital products delivered, from MVP to enterprise scale
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Straight answers on scalability, migration risk, code ownership, and what changes when your backend runs on Node.js.
You do. Everything built during the engagement – code and IP – becomes yours, and we keep documentation transparent in your own environment from day one, not handed over at the end.
Node's event-driven architecture is designed for high-concurrency workloads – it handles thousands of simultaneous connections through a single event loop, without spawning a thread per request. The limit isn't Node.js itself; it's whether the architecture separates I/O-bound and CPU-bound work correctly. That's decided per service, not assumed by default.
No. Node.js is typically introduced service by service – as a new microservice, an API gateway, or a real-time layer alongside your existing backend – not as a full replacement on day one. The migration path depends on what's actually causing friction in the current system.
Directly. Developers, designers, and product people are accessible via Slack and video calls without account-manager layers in between. English is our working language, and communication rules – channels, response times, meeting cadence – are agreed with you at the start of the engagement.
AI is used across the full development lifecycle – from discovery to testing to documentation – to speed up repetitive work and increase test coverage. Final decisions, code review, and accountability always stay with our engineers, and client data is never shared with public AI tools.
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Boldare S.A. z siedzibą w Gliwicach, przy ul. Zwycięstwa 52, zarejestrowana w Sądzie Rejonowym w Gliwicach, X Wydział Gospodarczy Krajowego Rejestru Sądowego pod nr KRS 0000914518, NIP 6312698829, REGON 38958555. Wysokość kapitału zakładowego i wpłaconego 100 000,00 zł.