68 backend developer English-speaking jobs in Catalonia

Backend Developer Company: Spoki Location: Barcelona, Spain We require on-site presence at our San Vito ... Must To Have Experience: 3+ years in backend development with production-grade systems. ... Contribute to backend services written in Golang where performance and concurrency are critical. ... Open Source: Contributions or side projects showcasing backend, AI, or automation expertise. ... Key Responsibilities Backend Development: Design, build, and maintain scalable, high-performance APIs

The Role We are looking for a Backend Developer to design and evolve business-critical services. ... Responsibilities Design and develop robust APIs and backend services. ... Requirements 4+ years as a Backend Engineer with Node.js and TypeScript. High level of autonomy.

Benefits Generous pay & developer-first culture: Work with a high-impact, well-compensated team in ... We're hiring a Backend Engineer - someone who'll own the backend systems that power our crypto ... Your profile 3+ years of backend experience building production systems in Go and TypeScript. ... What you'll do Design, implement, and operate scalable, resilient backend services handling millions

About you: 6–10+ years experience as a Full-Stack Developer. ... Node.js / Typescript on backend and frontend (mainly Vue.JS).. ... About the Role We're looking for a hands-on Full-Stack Developer to join our scaling tech team and ... collaborate closely with the tech team across the full development lifecycle — refining frontend & backend

focus on automation, reliability, and developer enablement. ... This role sits at the intersection of SRE, Platform Engineering and Backend Engineering, with a strong ... platform used by multiple teams and services High ownership and impact on platform reliability and developer

collaborative work environment, where you will have the opportunity to learn and grow as a software developer ... What You’ll DoDesign and build responsive, intuitive interfaces using React and Next.js.Support backend ... development using Node.js (Fastify).Integrate APIs for smooth frontend-backend communication.Contribute ... focus on building user-centric, responsive, and performant web applications, while contributing to backend ... and bring improvements to the development workflow.Work in Agile teams, supporting both frontend and backend

Backend collaboration: Collaborate on backend development tasks using Node.js with Fastify as needed. ... Familiarity with backend development, particularly Node.js with Fastify. ... The role demands proficiency in frontend technologies, some analytical skills, familiarity with backend ... API integration: Integrate and optimize APIs for seamless communication between frontend and backend ... will focus on building user-centric, responsive, and performant web applications while contributing to backend

LGT Digital Factory (Spain) S.L. is searching for a Workflow Automation Developer for our Barcelona Office.What ... Java-based open-source workflow engine executing BPMN 2.0 business processes.As a Workflow Automation Developer ... Do you have 2–4 years of experience in workflow automation or backend development and a strong passion ... Camunda).Solid knowledge of BPMN 2.0 (CMMN is a plus).Backend development experience with Java and Spring ... and maintain workflow solutions using Flowable (BPMN 2.0, CMMN where applicable).Develop and extend backend

Solid experience with Node.js backend and modern frontend frameworks (Vue.js preferred).

deploy and operate services at scale.This role sits at the intersection of SRE, Platform Engineering and Backend ... Engineering, with a strong focus on automation, reliability, and developer enablement.ResponsibilitiesDesign ... critical platform used by multiple teams and servicesHigh ownership and impact on platform reliability and developer

product development and platform intelligence.About the RoleWe’re looking for a hands-on Full-Stack Developer ... collaborate closely with the tech team across the full development lifecycle — refining frontend & backend ... platform.PHP (mainly Laravel) to extend and maintain our core business logic.Node.js / Typescript on backend

React Developer We are:Wizeline, a global AI-native technology solutions provider, develops cutting-edge ... You will collaborate closely with product, design, and backend teams to deliver high-quality, accessible ... streamline workflows.Experience with performance optimization and front-end testing frameworks.Exposure to backend

The role demands proficiency in frontend technologies, some analytical skills, familiarity with backend ... will focus on building user-centric, responsive, and performant web applications while contributing to backend ... needed.API integration: Integrate and optimize APIs for seamless communication between frontend and backend ... responsive and user-friendly interfaces using React and Next.js.Backend collaboration: Collaborate on backend ... data pipelines or frontend data visualization libraries (such as D3.js or Chart.js).Familiarity with backend

Backend DeveloperCompany: SpokiLocation: Barcelona, SpainWe require on-site presence at our San Vito ... , maintainable, and well-tested code aligned with project goals.Must To HaveExperience: 3+ years in backend ... with Grafana, Prometheus, or AWS CloudWatch.Open Source: Contributions or side projects showcasing backend ... Development:Design, build, and maintain scalable, high-performance APIs using Python and Django.Contribute to backend

collaborative work environment, where you will have the opportunity to learn and grow as a software developer ... team.Design, build, and review scalable frontend solutions using React and modern frontend practices.Drive backend

Design, develop, and productionize scalable systems using Python and Flask. Translate customer requirements into practical solutions and collaborate with stakeholders to deliver AI-driven products.

Backend & Systems Integrate blockchain logic into backend services and APIs. ... Backend experience with Python, Node.js, Rust or Go.

JavaScript, React/Angular).Performance optimization techniques (lazy loading, caching, CDN, minification).Backend ... testing tools (e.g., JMeter, Gatling, LoadRunner, k6).Experience with frontend monitoring frameworks and developer ... SLAs.Analyze frontend performance using modern tools (e.g., Lighthouse, WebPageTest, Dynatrace) and browser developer

Drive the product vision & roadmap for the Dow Jones Developer Portal. ... Including any redesign or functionality & capabilities improvements to truly embrace a developer-centric ... advanced strategic thinking and technical fluency to focus on corporate standards, compliance, and developer ... Foster an "API-as-a-Product" mindset and a culture of consistency, quality, and developer-centricity ... understanding of API architectures (REST, GraphQL, Event-Driven), platform technologies (API Gateways, Developer

You will work side-by-side with backend and frontend teams in an agile environment, making a real impact ... Proficiency with REST API testing (Postman, etc.) and the ability to read code (JS/TS or another backend