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Senior Backend Developer | Barcelona

New EuropeSenior

Senior Backend Developer in Barcelona (hybrid, 4 days on-site) who evolves a growing social-impact platform, migrating its AWS setup toward serverless. Day to day: designing and shipping scalable Node.js/NestJS APIs and event-driven AWS services, modeling data in MySQL and DynamoDB, mentoring teammates in an Agile team of 6 reporting to the CTO.

Agile API AWS CI/CD DevOps +14 skills

55K – 60K €

Senior Backend Developer-Remote, Microservices, Java Spring

New EuropeSenior

HCLTech is hiring a Senior Backend Developer in Asturias, Spain, to build Java 8/11 and Spring Boot microservices with an API-first approach using OpenAPI/Swagger. Day to day is backend development on complex projects, with Azure DevOps and integration/testing tooling valued, and telework offered.

API Azure Azure DevOps DevOps Java +3 skills

Desarrollador Java Senior Backend - Sistemas Distribuidos

New EuropeSenior

BCNC GROUP in Ibiza is hiring a Senior Java backend developer to work on platforms with distributed architectures. The role centers on designing scalable, reliable solutions using Java, microservices, and cloud environments, while collaborating with multidisciplinary teams to deliver quality results on deadline.

Desarrollador Fullstack Senior – Backend Remoto

New EuropeSenior

ALTEN Spain seeks a senior fullstack developer with a backend focus to build Field Service solutions, working 100% remotely on international projects. Core stack: Java with Spring Boot, microservices, containerization and DevOps; B2 English is valued.

DevOps Java Spring

Tamarind Intelligence

Software Developer

New HybridEurope

Software Developer at a technical consultancy firm in Madrid, designing, building and maintaining scalable software applications across diverse projects with full ownership from requirements to delivery. Core tech includes Python, Java, React, Rust, C#/.NET, with strong Azure and AWS experience.

AWS Azure C# Java Process Improvement +3 skills

Tamarind Intelligence

Senior Python Developer - Application Owner - Hybrid, Madrid + RELOCATION

New EuropeSenior

Senior Python developer acting as application owner for a risk-and-control data application serving a banking-sector client. Day to day: owning the app lifecycle and coordinating stakeholders, infra teams and vendors, while designing and maintaining Python/Django services on Linux with Oracle/Trino, Celery, Redis and CI/CD. Hybrid in Madrid (3 days office, 2 WFH).

API Api Design Authentication CI/CD CSS +14 skills

Tamarind Intelligence

Software Developer (.NET)

New HybridEurope

Builds and maintains cloud platform services for B. Braun New Ventures' healthcare products in Barcelona, from secure IoT connections to scalable web applications. Day-to-day work is developing microservices on Azure with languages like C#/.NET, using Docker, Kubernetes, and infrastructure-as-code in an agile team.

Agile Azure Cloud Containerization C# +8 skills

UST España & Latam

Remote React Frontend Developer – Next.js/TypeScript

Frontend developer building modern, scalable web applications with React, Next.js and TypeScript, consuming REST APIs and collaborating with design and backend teams. 100% remote from Spain on an international project with an initial 4-month contract and possible extension.

API Next.js React TypeScript

Qaracter - Beyond your Challenge

React Frontend Developer | TypeScript & Modern Web

Qaracter seeks a React Frontend Developer in A Coruña, Spain to design, develop, and maintain modern frontend applications using React and TypeScript. Day to day, you'll work with cross-functional teams building component-driven, accessible UIs with clean code, unit tests, and a focus on performance and quality.

Accessibility React TypeScript

Vermont Solutions

Desarrollador Backend Java | Spring Boot y Microservicios

A Java backend developer in Madrid who designs, builds and evolves microservices with Java and Spring Boot, exposes REST APIs backed by PostgreSQL, deploys to OpenShift/containers, and integrates with React frontend teams while following Agile (Scrum/Kanban) practices.

Agile API Java Kanban OpenShift +4 skills

act digital EMEA - Alter Solutions

Desarrollador Backend Java/Spring Boot Proyecto Innovador

Backend Java developer on a Spring Boot project for BBVA CIB's Supply Chain Finance platform. Day to day involves backend analysis and development, designing processes with database access and REST APIs, integrating files and message queues, and deploying through the client's CI/CD pipelines.

API CI/CD Java Spring

Desarrollador Backend Java (Mid) — Microservicios & APIs

New EuropeMiddle

Mid-level backend Java developer at hiberus in Castro Urdiales (Cantabria), Spain, designing REST APIs and evolving microservices-based platforms. Core stack: Java 17+, Spring Boot, microservices, and Kafka. Permanent contract with training, schedule flexibility and work-life balance benefits.

API Java Kafka Spring

Profile Software Services

Remote Senior Full-Stack Developer: Frontend & Backend

New EuropeSenior

Profile Software Services is hiring a Senior Full-Stack Developer for a 100% remote project, building back-end services, front-end development, and integration between the two. The stack values Vue, Node.js (Express), the BFF pattern, and unit testing with Jest.

Express.js Jest Node.js Vue

act digital EMEA - Alter Solutions

Desarrollador Backend Java | Spring Boot (Proyecto)

Backend Java developer working on Spring Boot services for a Supply Chain Finance project serving BBVA CIB. Day to day: integrating with databases, designing processes and REST APIs, deploying via CI/CD, and doing estimation/analysis in an agile, product-oriented team.

API CI/CD Java Spring

Desarrollador Backend Java | 100% Remoto, Horario Flexible

Sectorea is hiring a Java backend developer with 3-4 years of experience to build and evolve backend services in a corporate environment. The role is 100% remote with flexible hours and a permanent contract, valuing enterprise experience and BBVA NextGen background.

Desarrollador Backend Python/FastAPI - SaaS Remoto España

Backend developer at Rawdata building a SaaS platform that serves agri-food cooperatives, distributors and large clients. Works 100% remotely from Spain, focusing on Python/FastAPI backend development and integrations with client systems and external data sources.

FastAPI Python SaaS

Desarrollador Python Backend - Remoto, Horario Flexible

Builds Python backend components for Telefónica's TCDN on behalf of Full On Net, working 100% remotely with flexible hours. Day to day involves Python development, testing, and documentation within an agile team; Django, testing and REST APIs experience is valued, with Angular and modern architectures as a plus.

Angular API Django Python

Desarrollador Java Backend | Microservicios y Kubernetes Remoto

Java backend developer who designs, develops and maintains microservices using Spring Boot, deployed on Kubernetes and cloud infrastructure (AWS/Azure/GCP). Requires 4+ years of backend experience with Kafka/RabbitMQ messaging, PostgreSQL and MongoDB, plus TDD/DDD/SOLID practices. Remote work from Castilla y León, training and flexible compensation offered.

AWS Azure GCP Java Kafka +6 skills

Ust España & Latam

Remote Senior Python Developer (SQL/Oracle/PostgreSQL)

New EuropeSenior

UST España & Latam seeks a Senior Python Developer to design, develop, and maintain critical backend systems, working 100% remotely from Spain. The role requires 7+ years of Python, strong relational database skills (SQL Server, Oracle, PostgreSQL), microservices experience, and CI/CD pipelines (GitHub Actions/Jenkins).

CI/CD GitHub GitHub Actions Jenkins Oracle +4 skills

Ust España & Latam

Senior Python Developer (Remote) — SQL/Oracle/PostgreSQL

New RemoteEuropeSenior

Designs, develops, optimizes and supports Python backend systems with a strong emphasis on relational databases (SQL Server, Oracle, PostgreSQL) and CI/CD workflows. Works 100% remotely in a Spain-based setup, collaborating with cross-functional teams to deliver scalable, robust solutions.

CI/CD Oracle PostgreSQL Python SQL +1 skills