Node.js development
Node.js earns its place when a service spends its time waiting — on a database, a payment provider, another API. It earns it much less when the work is CPU-bound, and knowing which of the two you have is the decision that matters.
Where the event loop pays, and where it does not
A single Node process handles a large number of concurrent connections cheaply because most of what an API does is wait. That is the right shape for request routing, integration work, and anything that fans out to several downstream services.
It is the wrong shape for sustained computation. A CPU-heavy operation on the main thread blocks every other request behind it, and the symptom — latency that climbs under load with no obvious slow query — is easy to misread. Where we hit genuinely heavy computation we move it off the request path rather than scaling the process count and hoping.
What we build with it
API and service layers behind web and mobile clients, integration work against payment, messaging and identity providers, and the data access layer over PostgreSQL or MongoDB.
It is the most-used technology in our portfolio by a wide margin — the service layer under both the largest platforms we have built and the smallest.
API and service layers for web and mobile products
Integration-heavy systems talking to several third-party providers
Teams already writing TypeScript on the frontend who want one language across the stack
Sustained CPU-bound work — a different runtime will serve you better, and we would say so
Teams with deep existing expertise in another backend stack and no reason to move
11 projects built with it
Drawn from the technology each project actually used, so this list cannot include work that did not.
Financial Media and Investment Education
RealVision
A cross-platform financial streaming service delivering expert analysis across web, mobile, iPad and TV.
- 40%
- Increase in user engagement through dynamic tools and content
- 200,000+
- Engaged members globally
- 4.5
- Average user satisfaction rating
EdTech and Activity Management
ActivityHub
A SaaS platform connecting parents with children's activity providers across web, mobile and iPad.
- 94 min/week
- Time saved for activity providers managing activities
- 863K
- Messages sent between users
- 39K
- Sessions hosted on the platform
Financial Services, Investment Research and Market Analysis
Global Macro Investor
A subscription research platform delivering macroeconomic analysis to investors and financial professionals.
- 4.8
- Average subscriber satisfaction rating
- 15,000+
- Reports accessed by subscribers monthly
- 65%
- Engagement rate in live webinars and discussions
Fintech
SPARE
A fintech network turning retail points of sale into cash access points, built end to end.
Insurance & Financial Services
Everdays
A digital life insurance platform and iOS planning app, rated 4.6 across 991 App Store reviews.
- 4.6
- App Store rating across 991 reviews
- ~90%
- Of applicants qualify, often within minutes
- $200B
- In total assets backing policies across partner carriers
Renewable Energy
Fourth Partner Energy
Web, Android and the data-crunching backend behind a distributed solar portfolio spanning 3,000+ projects.
We do not publish rates, because scope decides them
A figure quoted before scope is understood is not a commitment either side can rely on. These are the things that actually move it.
Integration count
Each external provider adds implementation, error handling and a failure mode to design for.
Data model complexity
How much of the work is transactional and has to reconcile.
Existing system
Building alongside a system already in production costs more than starting clean.
NDA first, contract on frozen scope
We sign a mutual NDA before the first detailed conversation, not after — you should be able to describe what you are building without qualifying it.
The contract follows requirement freeze rather than preceding it. Once scope is agreed and written down, it is what the agreement is drawn against, which is what makes a fixed commitment meaningful in the first place.
What buyers usually ask
Something not covered here?
Ask directly — we would rather answer a specific question than publish a general one.
Contact us01
Node.js or a different backend?
Node suits IO-bound service work, which is most API and integration work. If your load is computational we will tell you before the build rather than after.02
Which databases do you pair with it?
PostgreSQL and MongoDB most often, and Supabase on more recent projects.03
Can you work on an existing Node codebase?
Yes. That usually starts with a read of what is there and an honest note on what should be left alone.04
Do you write TypeScript?
Yes, and we prefer it on anything with a lifespan measured in years.05
Who owns the code?
You do, from the first commit.
Also relevant
Tell us what the service has to do
Describe the load, the integrations and what it has to talk to. We will come back with an architecture opinion and a first milestone.
- NDA before we talk
- Reply within one business day
- No obligation