91 backend developer English-speaking jobs in Barcelona

About the role We are seeking an experienced and motivated Salesforce Technical Architect / Senior Developer ... experiences: Proven multi‑annual track record as a Salesforce Technical Architect/Specialist or Senior Developer ... certifications (e.g., Salesforce Certified Administrator, Technical/System Architect, Salesforce Platform Developer

Scala Developer seeking candidates with experience in Akka, ZIO, Play, Spark, and related technologies. Familiarity with databases, messaging systems, microservices, and cloud platforms is desired.

Job Title: Mid-Level Full Stack Developer (.NET/JavaScript)Location: Barcelona (preferred)/Hybrid 2/3 ... setupCollaborative international teamOpportunity to contribute to impactful projectsIf you're a motivated developer

Requirements Proven experience as a Full Stack Developer with a focus on PHP (Symfony/Laravel), Node.js ... Engineer (EU only) We are seeking a highly skilled and motivated Full Stack Laravel/Symfony/Node.js/React Developer

Senior .NET Developer (f/m/x) full-time | Location: Spain The Quality and Safety in Imaging GmbH (QSI

Our backend is a standard Ruby on Rails API powered by PostgreSQL, Redis, and Sidekiq. ... You might have a preference for working on backend projects, but you aren’t afraid of frontend work.

At ASTEK Iberia, we are looking for a Senior Front‐End Developer to join an international digital team

Role purpose: The Senior MuleSoft Developer is responsible for the design, delivery, and operational ... Mandatory Technical Skills · MuleSoft Certification required (Developer or Integration Architect). ·

We are seeking an experienced AI Developer to lead the design, development, and implementation of AI-driven

scalability, and performance across distributed systems Contribute to scalable architectures across backend ... workflows What We’re Looking For 4+ years of experience building scalable software systems Experience with backend

ownership Real impact on how telemetry data is captured, transformed, and routed at scale Strong mix of backend

similar Build and maintain data and ETL pipelines using Apache Airflow, Prefect, or similar tools Develop backend ... Familiarity with data pipeline tools such as Apache Airflow, Prefect, or similar Experience developing backend

This is an opportunity for an adaptable developer with strong problem-solving skills and intellectual

Your specialization in systems, infrastructure, and backend development – Rust, Kubernetes, container ... Job Requirements Solid 8+ years of software development experience. 5+ years with systems-level or backend

If you're passionate about building robust backend systems and working at the intersection of AI and

Support the integration of APIs and backend services.

You are comfortable diving into the Backend to refine an API or adjust business logic in Python to ensure

Our Tech Stack Frontend: TypeScript, React, Tailwind CSS, Next.js Backend: Node.js, Supabase/Postgres

Strong backend development skills (Python/Java/Node.js), RESTful APIs, message brokers (e.g., Kafka,

Senior C++ Engineer (Windows / Hardware Systems) Barcelona, Spain (Hybrid) We’re looking for a C++ engineer who enjoys working close to real hardware, not just software in isolation. You’ll build Windows-based applications that interact directly with devices, instrumentation, and system-level components.