70 backend developer English-speaking jobs in Catalonia

Developer, Communication Platform (100% Remote friendly within Spain) Fullstack Developer Senior (Ruby ... Freelance Software Developer (Ruby) - AI Trainer Freelance Ruby on Rails + Hotwire Developer — High-Performance ... The backend is the backbone of our business, enabling seamless interactions between our customers and ... Website Python Backend Junior Software Engineer - Remote 4 days a week (Europe) Barcelona, Catalonia ... (Ruby) at Tech Platform (Remote, PH-based) Full Stack Developer (She/He/They) - Insurance Full Stack

Your Mission Interested in working with an AI Data Platform supporting sustainability, with backend ... About the Position We are looking for a Mid‑Level Python Developer to strengthen our team and further

Your Mission Interested in working with an AI Data Platform supporting sustainability, with backend ... Your Profile We are looking for a Mid-Level Python Developer to strengthen our team and further boost

Related roles Backend Developer ( Java + Python) 100% remoto Junior Software Engineer (Core-Features) ... As a Software Developer You Will Work on the most challenging problems within the eCommerce space Build ... specific experience because we have a fit for both junior and senior profiles, both in frontend and backend ... Right now we are 40 people in total, 10 in the product team and we are looking for Software Developers (backend

Experience building APIs or backend systems. ... Role Overview AI‑First Developer / Builder – we are hiring a developer to work on prototypes, tools, ... Prototype AI‑assisted developer workflows. ... Design small full‑stack applications (backend + simple frontend).

The ideal candidate will be an experienced Backend Software Engineer / Java Developer with a strong knowledge ... The Role We are looking for a skilled back‑end developer to join our team in building innovative applications

Code, GitHub Copilot) to accelerate delivery without compromising code integrity or security.Modern backend

Drive continuous improvement in developer productivity and developer experience, ensuring high-quality ... Strong hands-on technical background (e.g., Backend Engineer) with the ability to lead cross-functional

You develop scalable web applications consisting of a Node.js based GraphQL interface (Apollo) in the backend ... Your mission As Developer TypeScript / Node.js (all genders) you will support our client - a global ... Your profile As a TypeScript / Node.js developer, you have extensive experience in the development

Working closely with product managers, designers, and backend engineers, you’ll be instrumental in defining ... As a Senior iOS Developer (Tech Advisor), you’ll play a vital role in shaping the mobile experience for ... YOUR MISSION As a Senior iOS Developer at Leadtech, you will: Oversee the external development and maintenance ... ABOUT THE ROLE Due to continuous growth, our Mobile Development Team is excited to welcome a Senior iOS Developer

Qualifications 7+ years of experience as a Frontend Developer. ... You will work closely with Product, Design, and Backend teams to ensure high-quality, accessible, and

great mentorship skills Your Qualifications 7+ years of experience as a professional software developer ... development Strong and proven knowledge of ReactJs or React Native Experience with Python or another backend

Familiarity with AI-assisted coding environments and developer productivity tools. ... Experience integrating with backend services or APIs Familiarity with version control systems and CI/

To support our Backend Engineering team we are searching for a Backend Engineer (f/m/d) to be based in

Overview We are looking for a AI Web3 Backend Engineer with deep expertise in DeFi protocols, backend ... This role requires someone who is as comfortable deploying large-scale backend systems as they are with ... Requirements Backend engineering expertise: strong experience in designing and deploying distributed ... Responsibilities Architect and implement the Traia.io AI Agent Marketplace backend and deployment infrastructure

Create backend services following the API First principle. ... Experienced in developing backend systems with NodeJS. ... Develop interfaces between our backend APIs and consumer touchpoints.

This role is focused on high-performance backend development for the exchange core and surrounding ecosystem ... core exchange infrastructure and trading systems Designing and building high-throughput, low-latency backend ... of a next-generation trading platform What were looking for 5+ years of experience with C# / .NET backend ... Strong system design and backend architecture skills Tech stack C# / .NET (latest versions) High-performance ... backend architecture In-memory processing Modern infrastructure and cloud tooling What we offer Opportunity

Responsibilities Lead the implementation of extensions to the Signaloid Cloud Compute Engine backend ... Be responsible for extending the testing and QA infrastructure of the Signaloid Cloud Compute Engine backend ... engineering, computer science, or a related discipline More than three years of experience working as a backend ... test‑driven development Some exposure to frontend development; comfort occasionally working outside the backend

Senior Embedded Software Developer As a Senior Embedded Software Developer, you will design, implement

Key Responsibilities Implement, and maintain backend service (not tiny microservices—well-designed ... What Success Looks Like Quadrivia’s backend systems become a global reference for reliability, safety ... The Role You will design and build the backend systems powering the Quadrivia clinical AI platform—including ... experience working under SOC2/ISO27001, HIPAA/GDPR, or medical device regulatory requirements. 10+ years in backend