673 backend developer English-speaking jobs in Spain

Fully remote Multiple Engineering Roles (Engineer → Principal) | Backend Java or .NET | Fully Remote ... We're hiring backend engineers at all levels—from mid-level to principal—to build high-scale, secure ... Key Responsibilities Understand merchant and partner needs to deliver high-quality, innovative backend ... remote role anywhere in Spain Work directly with a high-growth global payments company Build robust backend ... What We're Looking For Strong experience in backend development with Java or .NET Solid understanding

####### ONLY FOR RESIDENTS IN SPAIN ####### We are looking for a passionate Senior Full-Stack Developer ... Backend & Data: Proven experience with Express, GraphQL, Apollo Server, NestJS, and MongoDB. ... work closely with our Product and Design teams to develop complete Full-Stack features—from robust backend ... You won't just build the API; you will ensure the data flows seamlessly from our backend services ... Communication: Strong collaboration skills to bridge the gap between Backend, Frontend, Design, and Data

####### ONLY FOR RESIDENTS IN SPAIN ####### We are looking for a passionate Senior Full-Stack Developer ... Backend & Data: Proven experience with Express, GraphQL, Apollo Server, NestJS, and MongoDB. ... work closely with our Product and Design teams to develop complete Full-Stack features—from robust backend ... You won't just build the API; you will ensure the data flows seamlessly from our backend services ... Communication: Strong collaboration skills to bridge the gap between Backend, Frontend, Design, and Data

####### ONLY FOR RESIDENTS IN SPAIN ####### We are looking for a passionate Senior Full-Stack Developer ... Backend & Data: Proven experience with Express, GraphQL, Apollo Server, NestJS, and MongoDB. ... work closely with our Product and Design teams to develop complete Full-Stack features—from robust backend ... You won't just build the API; you will ensure the data flows seamlessly from our backend services ... Communication: Strong collaboration skills to bridge the gap between Backend, Frontend, Design, and Data

####### ONLY FOR RESIDENTS IN SPAIN ####### We are looking for a passionate Senior Full-Stack Developer ... Backend & Data: Proven experience with Express, GraphQL, Apollo Server, NestJS, and MongoDB. ... work closely with our Product and Design teams to develop complete Full-Stack features—from robust backend ... You won't just build the API; you will ensure the data flows seamlessly from our backend services ... Communication: Strong collaboration skills to bridge the gap between Backend, Frontend, Design, and Data

####### ONLY FOR RESIDENTS IN SPAIN ####### We are looking for a passionate Senior Full-Stack Developer ... Backend & Data: Proven experience with Express, GraphQL, Apollo Server, NestJS, and MongoDB. ... work closely with our Product and Design teams to develop complete Full-Stack features—from robust backend ... You won't just build the API; you will ensure the data flows seamlessly from our backend services ... Communication: Strong collaboration skills to bridge the gap between Backend, Frontend, Design, and Data

Desired Skills: Previous experience in web or backend development (Java, .NET, JavaScript). ... We are looking for a Mendix Developer, with a solid technical foundation and strong motivation to grow

Desired Skills: Previous experience in web or backend development (Java, .NET, JavaScript). ... We are looking for a Mendix Developer, with a solid technical foundation and strong motivation to grow

Desired Skills: Previous experience in web or backend development (Java, .NET, JavaScript). ... We are looking for a Mendix Developer, with a solid technical foundation and strong motivation to grow

Desired Skills: Previous experience in web or backend development (Java, .NET, JavaScript). ... We are looking for a Mendix Developer, with a solid technical foundation and strong motivation to grow

Desired Skills: Previous experience in web or backend development (Java, .NET, JavaScript). ... We are looking for a Mendix Developer, with a solid technical foundation and strong motivation to grow

Backend Engineer - Quantum + AI - 9 months contract - Zaragoza, SpainJoin a European deep-tech leader ... is already reshaping how AI is deployed worldwide.As the business expands we are now looking for a Backend ... join the team in Zaragoza.Required Qualifications:2–5 years of experience developing and maintaining backend ... Grafana, OpenTelemetry)Demonstrated ability to collaborate with product and design teams to define backend

The project centres around a content management system (C-Controls backend). ... Job Title: Senior Backend (Java) Engineer Location: Madrid, Stockholm, Hong Kong or Singapore Start Date ... Summary: This role focuses on upgrading a large internal production system - specifically a Java-based backend

We are looking for a Senior Java Backend Engineer with at least 6 years of experience to join the project ... Design, develop, deploy, and monitor backend applications; participate in code reviews and feature planning

Role Overview We're seeking a passionate and experienced SW Engineer to join the Revenue Optimization ML team. This high-impact role combines infrastructure expertise with applied MLOps knowledge, requiring proficiency in software engineering, distributed systems, and machine learning operations.

Expertise in writing production-grade Python code for backend systems. ... Backend development: Implement APIs and services that process and expose music data at scale. ... Qualifications 5+ years of professional software development experience, with significant exposure to both backend

Senior CRM Developer – Remote | 6-Month Contract (Autónomo) As a Senior CRM Developer with a focus on ... Senior CRM Developer Location: Fully remote Start date: 01.01.2026 (flexible) Contract: 6 months + ... including Windows platform development and database design How to Apply If you're a senior-level CRM Developer

Senior CRM Developer – Remote | 6-Month Contract (Autónomo) As a Senior CRM Developer with a focus on ... Senior CRM Developer Location: Fully remote Start date: 01.01.2026 (flexible) Contract: 6 months + ... including Windows platform development and database design How to Apply If you're a senior-level CRM Developer

Senior CRM Developer – Remote | 6-Month Contract (Autónomo) As a Senior CRM Developer with a focus on ... Senior CRM Developer Location: Fully remote Start date: 01.01.2026 (flexible) Contract: 6 months + ... including Windows platform development and database design How to Apply If you're a senior-level CRM Developer

Senior CRM Developer – Remote | 6-Month Contract (Autónomo) As a Senior CRM Developer with a focus on ... Senior CRM Developer Location: Fully remote Start date: 01.01.2026 (flexible) Contract: 6 months + ... including Windows platform development and database design How to Apply If you're a senior-level CRM Developer