Senior Backend Engineer (NodeJS) - Remote

KeepITup; España; Híbrido; EUR 60.000 - 65.000; Jornada completa

Descripción de la vacante

A growing tech scale-up is seeking a passionate Backend Developer to contribute to their product development. You will work with Node.js in a microservices architecture and assist in building new features. The role offers a competitive salary, a flexible work schedule with remote options, and a supportive team environment focused on innovation.

Servicios

Salary between €60,000 and €65,000

10% bonus

Budget for learning materials

Flexible schedules

Remote work options

Private health insurance

Free coffee and pizza

Formación

• 4+ years of experience using Node.js on the backend.
• Experience with React or other JS frameworks is a plus.
• Knowledge of microservices architecture and Apollo GraphQL.

Responsabilidades

• Build new features using Node.js and contribute to the team's goals.
• Define and implement coding standards while contributing to documentation.
• Take ownership of tasks and assist in estimating project deliveries.

Conocimientos

Javascript

Node.js

Microservices architecture

Functional Reactive Programming

Apollo GraphQL

Herramientas

ReactJS

PostgreSQL

Kubernetes

Java Spring Boot

RabbitMQ

Descripción del empleo

About the company

Their product is a SaaS platform that delivers results in real-time and transforms market research into an accessible, everyday solution for brands worldwide. It is simple, easy to use, and supported by a team of specialized researchers. The platform enables brands to conduct high-quality research and obtain immediate results. Their mission is to deliver the best outcomes to users and democratize market research, making it accessible globally.

Although they are in the Series A stage, they are experiencing organic growth as a scale-up.

Clients include Disney, Bayer, and Uber.

About the Role

We are seeking a talented and passionate Backend Developer to significantly contribute to the product and business growth.

Who are you?

You have experience working in a product company (B2B SaaS experience is a plus) and have successfully deployed and maintained ReactJS frontends in production. You have worked in teams of 3 to 5 members following Lean and Extreme Programming practices. You have faced significant technical challenges and actively participated in product development. You have ownership of making product and technical decisions, proactively identifying issues and opportunities.

Your Technical Skills & Knowledge

• Javascript, with at least 4 years of experience using Node.js on the backend.
• Experience in frontend development using React or other JS frameworks (not mandatory).
• Knowledge of microservices architecture.
• Understanding of Functional Reactive Programming.
• Experience with Apollo GraphQL.
• Unit testing with react-test-utils, functional testing with cucumber, and TestCafe.

About the Role

Join the Projects team to build new features using Node.js (and React if full-stack).

• Define and implement best practices, coding standards, and techniques while contributing to technical documentation.
• Research and evaluate solutions, making recommendations to the Product team.
• Take ownership of tasks.
• Assist your team in planning and estimating both short-term and long-term deliveries.
• Implement well-tested code to ensure responsiveness and efficiency.

Tech Stack

The platform is a microservices architecture deployed on GCP via Kubernetes (GKE). Approximately 80% of services are in Node.js (plain JS and TypeScript), with 20% in Java Spring Boot. Databases are PostgreSQL, and messaging uses RabbitMQ. Frontends are built with ReactJS + Redux, employing a BFF pattern with GraphQL in Node.js.

Node.js microservices are distributed across various organizational domains, including pure microservices, API gateways, and GraphQL BFFs, written in plain JS or TypeScript.

The frontends use ReactJS (v.17+), Redux, react-saga, and hooks.

What They Offer

• Salary between €60,000 and €65,000 + 10% bonus.
• Budget for learning materials, courses, or conferences.
• Flexible schedules and remote work options (typically one day in-office per week).
• Full remote option and work-from-home setup.
• Private health insurance.
• High-growth, multicultural, and friendly environment.
• Free coffee and pizza at the office.