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Hire talent · Back end

Hire Express.js developers

Add an Express engineer to your team to build and maintain the Node APIs your product runs on. For teams with a backend already in flight, or a service that needs writing properly the first time.

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What they do

Hire Express.js developers, end to end.

REST APIs on Express

Route structure, request validation, consistent error responses and versioning. Endpoints your frontend team can build against without asking what a field means, and a contract that holds when the shape changes.

Middleware and auth

Authentication, sessions or tokens, role checks, rate limiting and request logging written as middleware rather than copied into every route. One place to change when the rules change.

Database and data layer

Postgres, MySQL or MongoDB behind a query layer that is readable. Migrations that run in order, connection pooling set deliberately, and queries that stay fast as the table grows.

Third-party integrations

Payment providers, CRMs, email, storage and internal services. Retries, timeouts and idempotency handled so a slow supplier does not take your API down with it.

Background jobs and queues

Work that should not block a request moved to a queue: imports, exports, emails, report generation. Failures visible, retried where sensible, and dead letters you can inspect.

Testing and deployment

Integration tests over the routes that matter, a pipeline that runs them, and a deployment you can repeat. Environment configuration kept out of the code and secrets kept out of the repository.

How it runs

Plan. Build. Run.

01

A 30 minute call

You describe the service, the team it joins and the deadline you are working to. We say what we would do and whether Express is the right tool. No slide deck and no discovery invoice.

02

Fixed scope and price

You get the work written down: what gets built, in what order, how long it takes and what it costs. If the scope changes later we reprice that change rather than absorb it quietly.

03

Build in the open

Work lands in your repository, in branches, against your review process. You see progress every week rather than at the end, and you can redirect us before something is finished the wrong way.

04

Launch, then run

We deploy, watch the first days closely, and fix what the real traffic finds. From there you can keep us on a retainer or take the code and run it yourself.

Why infoloop

We do not hand over and leave.

  • We run what we buildOur retainer covers monitoring, fixes with response targets, security updates and a monthly report. The people who wrote the service are the people who keep it up.
  • You own the codeYour repository, your infrastructure, your accounts. No proprietary framework you can only maintain by paying us, and no hosting arrangement you cannot leave.
  • We work in your teamStandups, tickets, code review, the branching model you already use. An engineer who fits your process rather than one who runs a parallel project alongside it.
  • Scoped before it startsFixed scope, timeline and price agreed up front. You know what the service costs before anyone writes a line, and you know what a change to it costs too.
  • Across products, not just APIsWe have shipped 50 or more products across 6 countries, with a 99.9% uptime record on what we run. Backends are one part of work that also covers front ends, storefronts and AI agents in production.

What you get

Every engagement includes these, in writing, before work starts.

  • A working Express service in your repository, with a README that explains how to run it locally
  • API documentation covering every endpoint, its inputs, its responses and its error codes
  • Database schema and migration files that run cleanly from empty
  • Integration tests over the critical routes, wired into a pipeline that runs on every push
  • Deployment configuration and environment variable documentation, secrets handled separately
  • A handover session with your team, recorded, covering architecture and the parts that need care

Who this is for

Three situations where this is the right call.

A Node backend nobody owns

The engineer who wrote it has left and the service is now something the team works around rather than in. You need someone to read it properly, document it, and make the next change safe to make.

A frontend team waiting on an API

The interface is designed and the frontend is ready to build, but there is no backend and no backend engineer to hire in time. You need the API written and documented on a date you can plan around.

A product outgrowing its first build

The service was written quickly to prove the idea and it worked. Now the traffic, the integrations and the data have grown past it, and it needs restructuring without a rewrite that stops everything.

Questions

What buyers ask us first.

How much does hiring an Express developer through infoloop cost?
We do not sell hours. After a 30 minute call we write down the scope, the timeline and a fixed price, and that is what you pay. The price depends on how much of the service exists already, how many integrations it has to speak to, and whether you need us to run it afterwards. A small API on a clean database is a very different number to untangling a service that has grown for three years. If you want a rough figure before committing to anything, tell us what the service does and we will give you a range on the call rather than after a paid discovery phase.
What happens after the service goes live?
You choose. You can take the code and run it, in which case we hand over documentation, a recorded walkthrough and access to everything we set up. Or you keep us on our managed retainer, which covers monitoring, fixes with agreed response targets, security and dependency updates, improvements as you need them, and a monthly report showing what happened. Most backend problems appear weeks after launch, not on launch day, when real data volumes and edge cases arrive. The retainer exists because handing over and leaving is how services quietly rot.
Can your developer work inside our existing team and codebase?
Yes. That is the usual shape of this engagement. We work in your repository, on branches, through your review process, in your ticketing system and your standups. We follow the conventions already in the code rather than importing our own. If your codebase has patterns we would not have chosen, we will say so and explain the cost of leaving them, but we will not quietly rewrite things you did not ask us to touch. If you would rather we built a service separately and handed it over, we can do that too.
Do you work with Express alongside TypeScript, GraphQL or other Node frameworks?
Yes. Express is often one piece of a Node stack rather than the whole thing. We write Express services in TypeScript where the project uses it, and add GraphQL over an Express server where a client needs it. We also work with the other common Node frameworks, so if your codebase already uses something else we can work in that instead. On the first call we will tell you honestly if Express is the wrong choice for what you are describing, rather than fitting the job to the page you happened to land on.
How do you handle security, authentication and data protection?
Authentication and authorisation are written as middleware, not scattered through routes, so the rules live in one place and can be reviewed. We validate every request at the boundary, parameterise every query, rate limit endpoints that need it, and keep secrets out of the repository and in your environment or secret store. Dependencies get updated rather than left. Where the service handles personal or payment data we will tell you what that adds to the scope. Security is part of the build, not a phase you buy separately afterwards.
How quickly can someone start, and what do you need from us?
Once scope and price are agreed we can usually start within days rather than months, which is the main reason teams take this route instead of hiring. To start well we need repository access, a staging environment or the ability to create one, credentials for any third-party services the API talks to, and one person on your side who can answer questions about how the business logic is meant to behave. That last one matters most. Missing access slows a start more than anything technical.

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Tell us what your API needs to do. Book a 30 minute call

Bring the service you have, or the one you need. We will tell you what we would build, how long it takes and what it costs. You leave the call with a scope, not a proposal to wait for.

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