Node.js Development

WAYF is a Node.js Development Agency:
One Language. Full Stack.

WAYF is a Node.js Development Agency:
One Language. Full Stack.

JavaScript everywhere. Backend APIs built by the same engineers who build your frontend.

Node.js makes sense when your frontend is React and you want a unified language across your stack. Same mental models, same tooling ecosystem, seamless data contracts between client and server. When that alignment matters, we know how to build backends that match the quality of our frontend work.

What We Build

APIs and backend services. REST, GraphQL, tRPC—whatever fits your data patterns and team preferences. We build backends that serve React and React Native applications, designed by the same engineers who build those frontends.

Real-time applications. WebSocket servers, live collaboration features, chat infrastructure, notification systems. Node's event-driven architecture handles concurrent connections well; we know how to structure applications that take advantage of it.

Serverless functions. AWS Lambda, Vercel, Cloudflare Workers. When you need backend logic without managing infrastructure, Node.js is often the right runtime.

Internal tooling and automation. Scripts, CLI tools, build pipelines, developer infrastructure. Node's ecosystem has libraries for almost everything; we use them to solve operational problems.

What we build less of: CPU-intensive computation, heavy data processing, machine learning pipelines. Node.js handles I/O well but isn't optimized for compute-bound work. If your backend is mostly number-crunching or ML inference, we'll point you toward better tools—or bring in specialized help.

Why Us

Full-Stack Coherence

Our Node.js engineers are our React engineers. They understand both sides of the API contract because they build both sides. No translation layer between "the frontend team" and "the backend team"—same people, same codebase conventions, same TypeScript throughout.

Full-Stack Coherence

Our Node.js engineers are our React engineers. They understand both sides of the API contract because they build both sides. No translation layer between "the frontend team" and "the backend team"—same people, same codebase conventions, same TypeScript throughout.

Seniority Throughout

They've built Node.js services that scaled and inherited ones that didn't. They know what Node.js handles well—APIs, real-time apps, lots of simultaneous connections—and where other tools work better. They won't recommend Node.js for problems it wasn't designed to solve.

They've built Node.js services that scaled and inherited ones that didn't. They know what Node.js handles well—APIs, real-time apps, lots of simultaneous connections—and where other tools work better. They won't recommend Node.js for problems it wasn't designed to solve.

Seniority Throughout

They've built Node.js services that scaled and inherited ones that didn't. They know what Node.js handles well—APIs, real-time apps, lots of simultaneous connections—and where other tools work better. They won't recommend Node.js for problems it wasn't designed to solve.

Honest About Scope

Not every backend needs microservices. Not every API needs GraphQL. We build what your application actually requires, not what's fashionable. Sometimes that's a simple Express server. Sometimes it's a more sophisticated architecture. We'll tell you which and why.


Honest About Scope

Not every backend needs microservices. Not every API needs GraphQL. We build what your application actually requires, not what's fashionable. Sometimes that's a simple Express server. Sometimes it's a more sophisticated architecture. We'll tell you which and why.

Range of Deployment

We've shipped Node.js backends for early-stage startups (Framer, Rye), global manufacturers (Ingersoll Rand), and international institutions (Council of Europe Development Bank). A prototype API and an enterprise integration require different approaches to error handling, logging, and security. We know how to calibrate.

Range of Deployment

We've shipped Node.js backends for early-stage startups (Framer, Rye), global manufacturers (Ingersoll Rand), and international institutions (Council of Europe Development Bank). A prototype API and an enterprise integration require different approaches to error handling, logging, and security. We know how to calibrate.

How We Work

Sometimes you have a backend architecture and need engineers who can contribute without disrupting what's working. We integrate. Your patterns, your deployment pipeline, your conventions. We'll suggest improvements when we see them, but the mode is contribution, not reconstruction.

Other times—especially with new products or teams extending into backend development—you need someone to establish the foundation. Define the architecture. Set up the infrastructure. Make decisions about tooling, error handling, API design, and deployment that will shape the project for years.

When we lead backend work, we lead completely. Database schema design, API contracts, authentication flows, deployment pipelines, monitoring, documentation. Two-week sprints, working software at the end of each, decisions captured in writing.

What makes Node.js projects specific: the ecosystem is vast and opinionated options are few. Express or Fastify or Hono? Prisma or Drizzle or raw SQL? These choices matter less than making them deliberately and consistently. We bring opinions, but we hold them loosely—your constraints and preferences factor into every decision.

What stays constant: direct communication, no surprises, and feedback that prioritizes your outcomes over our convenience.

Technical Approach

TypeScript Everywhere—Non-Negotiable

Strict mode. Proper types for API requests and responses. Shared type definitions between frontend and backend when possible. The runtime flexibility of JavaScript combined with compile-time safety.

Framework Choices Based on Needs

Express for familiarity and ecosystem. Fastify for performance. NestJS for teams that want more structure. Hono for edge deployments. We have preferences but no dogma; the choice depends on your team, your scale, and your deployment target.

Framework Choices Based on Needs

Express for familiarity and ecosystem. Fastify for performance. NestJS for teams that want more structure. Hono for edge deployments. We have preferences but no dogma; the choice depends on your team, your scale, and your deployment target.

Database Design That Scales

PostgreSQL for most applications. Proper indexing, query optimization, connection pooling. We use ORMs when they help and drop to raw SQL when they don't. Schema migrations handled deliberately, not as an afterthought.

API Design for Real Clients

Error handling that's informative without leaking internals. Pagination that works. Rate limiting where appropriate. Versioning strategies that don't break existing integrations. The boring details that make APIs pleasant to consume.

API Design for Real Clients

Error handling that's informative without leaking internals. Pagination that works. Rate limiting where appropriate. Versioning strategies that don't break existing integrations. The boring details that make APIs pleasant to consume.

Observability from the Start

Integration tests for API contracts. Unit tests for complex business logic. Load tests before production deployments. Not testing for coverage percentages but for confidence in behavior.

Testing at the Right Layers

How stacks divide determines what can break independently. We structure based on your team topology, deployment frequency, and failure tolerance.

Testing at the Right Layers

How stacks divide determines what can break independently. We structure based on your team topology, deployment frequency, and failure tolerance.

Security as Architecture, not Afterthought

Input validation, authentication flows, authorization boundaries, dependency auditing. Node.js has had its share of supply chain incidents; we configure projects to minimize exposure.

What We See Go Wrong

The most common pattern: treating Node.js backends like they're stateless when they're not. Memory leaks from improper cleanup. Event loop blocking from synchronous operations in the wrong places. Connection pool exhaustion. These problems don't appear in development; they appear under production load, and by then they're expensive to fix.

We also see teams over-engineer. Kubernetes for services that could run on a single server. Microservices for applications that should be monoliths. Message queues for workflows that could be function calls. Complexity has costs; we help teams right-size their architecture.

Another pattern: ignoring TypeScript or using it superficially. Type safety across API boundaries catches errors before production. Teams that skip this—or treat types as optional—spend more time debugging runtime issues than they would have spent writing proper interfaces.

We don't judge how you got here. Sometimes the original architecture made sense for the original requirements. Sometimes the team that built it is gone. We assess what exists, understand the constraints, and figure out the path forward—whether that's optimization, refactoring, or an honest conversation about starting fresh.

Who We Work Well With

Teams building React applications who need backend capabilities and want a unified stack. The efficiency of one language, one type system, one set of patterns across the entire application.

Also: teams with existing Node.js backends that need improvement—better architecture, better performance, better reliability. We've inherited plenty of backends that worked but could work better.

What both types share: realistic expectations, direct communication, and interest in understanding why we build things a certain way, not just what we build.

Who We're Not For

If you need heavy computation—data processing, ML training, video transcoding—Node.js probably isn't the right tool, and we'll tell you that. The event loop model optimizes for I/O, not CPU.

If you're choosing between agencies on rate alone, we'll lose that comparison. What we won't lose is months to architectural decisions that seemed cheaper initially but cost more over time.

If you want a vendor who executes specifications without questions, we're a poor fit. We ask why. We push back. We care about outcomes beyond the immediate ticket. That's the partnership we offer; not everyone wants it.

Compounding Trust

Founders, CTOs, and Procurement Officers choose WAYF.
Hundreds of 0 → 1 launches · Fortune 500 partnerships · Global public institution contracts

Founders, CTOs, and Procurement Officers choose WAYF. Hundreds of 0 → 1 launches · Fortune 500 partnerships · Global public institution contracts

Client spotlight

Client spotlight

Council of Europe Development Bank

Billions of Euros in capital deployed each year to support social cohesion.

A grid background image

Fortune 500:
Ingersoll Rand

Worldwide manufacturer and distributor of unrivalled compressed air solutions.

A grid background image

Client spotlight

Client spotlight

Council of Europe Development Bank

Billions of Euros in capital deployed each year to support social cohesion.

A grid background image

Fortune 500: Ingersoll Rand

Worldwide manufacturer and distributor of unrivalled compressed air solutions.

A grid background image

Client spotlight

Client spotlight

Council of Europe Development Bank

Billions of Euros in capital deployed each year to support social cohesion.

A grid background image

Fortune 500:
Ingersoll Rand

Worldwide manufacturer and distributor of unrivalled compressed air solutions.

A grid background image

Let's talk

Have a Node.js project—new backend, existing service that needs work, or a question about whether Node.js fits what you're building?

Let's talk

Have a Node.js project—new backend, existing service that needs work, or a question about whether Node.js fits what you're building?

Let's talk

Have a Node.js project—new backend, existing service that needs work, or a question about whether Node.js fits what you're building?