Runtime and frameworks
We ask candidates to explain the event loop, asynchronous failure handling and framework lifecycle, then reason through CPU-heavy work or an overloaded endpoint.
- Node.js
- NodeJS
- NestJS
- Express
- TypeScript
- JavaScript
UK, Europe, USA
Node.js engineers screened for API design, asynchronous systems, data and dependable production delivery.
Technical screening by developers and CTOs is included.

We recruit Node.js developers across NestJS, Express and TypeScript environments. Technical assessment covers asynchronous behaviour, service and API design, persistence, queues, testing and the operational decisions behind maintainable Node.js systems.
When to hire Node.js developers: An API-focused product team. An integration or event-driven platform. A TypeScript team sharing code across frontend and backend.
We distinguish product API work, integration-heavy services, event-driven systems and platform ownership before sourcing.
We ask candidates to explain the event loop, asynchronous failure handling and framework lifecycle, then reason through CPU-heavy work or an overloaded endpoint.
We probe ORM-generated queries, transactions, indexes and cache invalidation by asking candidates to diagnose incorrect data or degraded query performance.
We ask how jobs remain idempotent, retries avoid duplicate effects and API contracts evolve safely while workers or dependent services run different versions.
We look for engineers who think beyond the immediate ticket, remain calm when production systems fail and make careful changes while communicating contracts and risks clearly to dependent teams.
The assessment tests runtime understanding and system design in the context of the services the candidate will own.
Asynchronous work, concurrency, error handling and performance trade-offs.
API contracts, NestJS or Express structure, queues and integration boundaries.
ORM decisions, database behaviour, testing, observability and deployment.
Tool names are not enough. Across every role, we look for technical depth, disciplined use of AI and an honest approach to solving unfamiliar problems.
We keep asking why and how until we reach the underlying behaviour. Candidates should understand what their framework, runtime, database, browser, cloud service or design tool is doing for them, how they work behind the scenes (and why), and how they would investigate a failure without relying on copying fixes from ChatGPT.
We expect candidates to use AI productively, but never as a substitute for judgement. They need to explain how they verify generated code, designs and tests, protect confidential data, catch unsafe assumptions and remain accountable for the result. We expect them to use MCPs, skills, and goals. So basically - we are looking for structured AI-assisted work, not vibe coding, vibe designing or vibe testing.
Strong candidates have a can-do mindset and will investigate, experiment and learn when the answer is not obvious. At the same time, they are fair and transparent about what they know, what they have not done before and when they need support.
Give us a few details about the role and your hiring plans. We'll assess your needs and get back to you with a practical next step.
Yes. Our Node.js recruitment experience includes both NestJS and Express, with TypeScript and JavaScript.
Yes. We can assess queue design, retries, idempotency, scheduling, failure handling and observability. Relevant briefs have included BullMQ and Temporal alongside API and microservice work.
Yes. We test data modelling, query behaviour, transactions, performance and whether an abstraction suits the system. Relevant experience includes Prisma, TypeORM and Mongoose across relational and MongoDB-based applications.