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Backend Engineer (Node.js) – Fintech Platform

Jobgether · Madrid et périphérie

Mid 🇬🇧 English
Node.js TypeScript JavaScript GraphQL REST APIs PostgreSQL SQL Prisma AWS Event-driven architecture OAuth SSO Microservices Monorepo CI/CD pipelines Automated testing

Job description

About the role

Join an innovative fintech environment focused on empowering the next generation with better financial knowledge and opportunities. As a Backend Engineer you will help build and scale the core services of a fast‑growing digital platform serving thousands of users.

Key responsibilities

  • Design, develop, and maintain high‑performance backend services using Node.js, TypeScript and modern best practices.
  • Create and optimise GraphQL and REST APIs for internal and external communication.
  • Manage database architecture, performance and reliability with PostgreSQL, SQL and Prisma.
  • Deploy, monitor and maintain cloud infrastructure on AWS.
  • Implement event‑driven architectures to improve scalability and responsiveness.
  • Integrate third‑party platforms ensuring secure authentication and authorization.
  • Contribute to microservices and monorepo architectures for long‑term scalability.
  • Maintain engineering standards through automated testing, CI/CD pipelines and continuous monitoring.
  • Collaborate with cross‑functional teams to translate business requirements into technical solutions.

Required profile

  • Minimum 3 years of professional experience developing backend applications with Node.js, TypeScript and JavaScript.
  • Proven experience delivering GraphQL and RESTful APIs in production.
  • Strong knowledge of relational databases, especially PostgreSQL, and ORM frameworks such as Prisma.
  • Hands‑on experience with AWS cloud services.
  • Familiarity with event‑driven and asynchronous processing patterns.
  • Experience integrating third‑party services and working with OAuth/SSO authentication.
  • Solid understanding of microservices, monorepos and modern development tooling.
  • Fluent English communication skills and ability to work independently in a fast‑moving environment.

Required skills

  • Node.js
  • TypeScript
  • JavaScript
  • GraphQL
  • REST APIs
  • PostgreSQL
  • SQL
  • Prisma
  • AWS
  • Event‑driven architecture
  • OAuth / SSO
  • Microservices
  • Monorepo
  • CI/CD pipelines
  • Automated testing

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Published 3 months ago

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Jobgether

Madrid et périphérie