126 backend developer English-speaking jobs in Catalonia

Join our team as a Full Stack Developer! ... Your role will involve both frontend and backend development, collaborating closely with architects, ... B2 level) Technical skills Frontend Strong knowledge of Angular Solid experience with TypeScript Backend ... responsibilities will include: Developing and maintaining web applications using Angular and TypeScript Building backend ... Familiarity with AI-assisted coding environments and developer productivity tools.

Position : Full Stack Developer (Angular + Java/Spring Boot) Location: Barcelona (Hybrid: 40% onsite, ... 60% remote) Duration: Permanent Role Overview The Full Stack Developer will design, build, and optimize ... scalable product functionalities using modern frontend and backend technologies. ... Key Responsibilities Design, develop, and maintain applications using: Frontend: Angular Backend: Java ... practices and standards Technical Collaboration Work in a cross-functional agile team with strong frontend-backend

Responsibilities As a Backend Developer, you will help us solve the "last mile" of document processing ... About the Role We are looking for an experienced backend developer who is excited about pushing the boundaries ... Developer to join our innovative AI team. ... leader in translation software with a vibrant start-up spirit, is seeking a creative and passionate Backend

For our team, based in Spain, we are looking for an experienced Senior Full Stack .NET Developer to join ... You will be responsible for developing and maintaining the frontend and backend of our web applications ... How you’ll make an impact Develop and maintain the frontend and backend of our web applications using

Developer Solution Architect ... Improve maintainability, scalability, and developer experience in the codebase. ... Comfortable working across frontend, backend, and product concerns. ... This is not a pure visual frontend role, nor a backend-only platform role. ... The primary technologies are Angular on the frontend and NestJS on the backend.

We are looking for a Senior Frontend Developer to join our Onsite Team in Barcelona. ... Bridge Frontend & Backend: Collaborate closely with backend engineers to integrate payment providers ... Basic backend knowledge (REST APIs, databases). ... Experience working in a product team alongside designers and backend engineers. ... Backend (for context): NestJS, MedusaJS (self-hosted). Infrastructure: PostgreSQL, microservices.

developer with Java and Spring Boot Strong experience in designing and developing RESTful and/or GraphQL ... Do you want to design scalable backend systems and build powerful APIs that drive modern digital platforms ... company events, drinks flat rate and good coffee What you do Design and development of scalable backend ... systems, databases and third‑party services Ensuring high performance, security and reliability of backend ... architecture and development processes What you bring along 5+ years of professional experience as a backend

The Mission: We are looking for a Full Stack Developer with a strong backend focus to become part of ... Tech Stack: Backend: Nest, TypeScript, MedusaJS (Self-hosted).

Help with bug fixes, integrations, scripts, data tasks, CI/CD, developer experience, and internal docs ... Prototype backend, product, or AI capabilities that improve the product or internal tooling. ... This role sits at the intersection of backend engineering, product engineering, and applied AI systems ... Build backend systems for AI productsImplement, maintain, and scale Python/FastAPI services powering ... Work deeply with LLMs, RAG, tools, and agentsIntegrate backend services with LLM APIs, vector stores,

helping them leverage AI tools, modern practices, and automation to boost productivity, quality, and developer ... Hands-on experience with frontend/backend technologies, APIs, cloud-native architectures, microservices ... Engineering, QA, and DevOps teams to identify automation and productivity opportunities across frontend, backend

Who you are: Must-Haves: Proven professional experience in backend software engineering (we are hiring

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

Backend Excellence: Engineers sophisticated backend solutions involving API design, token lifecycle management ... Designs for developer experience, clear abstractions and well‑documented APIs. ... Developer Platform Thinking: Understands that the identity layer is a platform consumed by other engineers ... write design documents for significant changes to our auth systems, balancing security rigour with developer ... implement auth, but how Perk’s identity platform should evolve to support SSO, enterprise provisioning, and developer‑facing

benefits) Are you a hands-on backend engineer who loves building systems that scale? ... Senior Backend Engineer (Python/Django) Barcelona (Hybrid) | Full-time | Fintech Up to €90,000 (plus ... What You'll Be Doing Designing and scaling backend systems using Python/Django Owning architecture in ... This is a Senior level, highly hands-on engineering role focused on designing, building, and scaling backend ... Django, AWS, Docker, Kafka, PostgreSQL, Redis, MondoDB and Datadog What We're Looking For 10+ years of backend

As a Senior Backend Integration Engineer (C#/.NET, Salesforce), you will play a key role in shaping and ... You will drive the design and implementation of reliable, scalable, and maintainable backend integration ... existing integration flows, identifying improvement opportunities and reducing system complexity. • Own backend

Backend/API dependencies and their impact on frontend performance. ... Experience with frontend monitoring frameworks and developer tools. ... Analyze frontend performance using modern tools (e.g., Lighthouse, WebPageTest, Dynatrace) and browser developer

What you'll Do Own and prioritize the product backlog for a global backend platform. ... Technical Product Owner – Global Backend Platform Barcelona (Sant Joan Despí) | Hybrid (3 days remote ... Contribute to platform modernization and large-scale backend refactoring initiatives. ... Coordinate delivery across multiple teams including Backend, Mobile, API, Sandbox, and DevOps. ... Technical Product Owner to lead the vision, prioritization, and delivery of a highly scalable global backend

If you're passionate about building robust backend systems and working at the intersection of AI and ... Polyglot developer: comfortable to constantly get your hands on new libraries, frameworks and technologies

Role: Backend Engineer - Python/AWS Salary: €80,000-€90,000 Location: Barcelona-Based Remote Working ... What you'll be doing: Build and scale modern Backend applications using Python (FastAPI) Work closely ... Contribute to Backend architecture, component systems and overall engineering standards Collaborate with

a team of developers to improve the performance, resilience, and scalability of our systems • Build backend