91 backend developer English-speaking jobs in Catalonia

You will be the main developer responsible for the backend service, with a strong focus on performance ... While backend expertise is essential, you should also have solid experience in modern frontend development ... , but not a main requirement—our infra team handles deployments and operations.ResponsibilitiesLead backend ... decisions and drive architectural improvements.Proactively propose and implement enhancements on both backend ... and frontend.Ensure backend and frontend code are well tested, using Playwright for end-to-end and integration

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

✨ At Capitole we are looking for a PHP Backend Software Engineer to join the development team to help ... If you are passionate about backend development, clean architecture, and modern cloud-native environments ... We’re looking for someone with:5+ years of backend experience with PHP & SymfonyStrong knowledge of REST ... You will work on the development and maintenance of backend systems platforms, ensuring optimal performance ... learn new technologies (Golang / Python is a plus) In this role you’ll:Build and maintain scalable backend

architecture.Write unit and end-to-end tests to maintain quality.Collaborate closely with UX designers and backend ... Contract React Developer Location: Hybrid – Must be available in Barcelona office 2 days per week (Thursdays ... is partnering with a leading global client whose eCommerce team, We’re looking for a Contract React Developer

chops.Familiarity with observability tools (Prometheus, Grafana, OpenTelemetry).BenefitsGenerous pay & developer-first ... Engineer - someone who’ll own the backend systems that power our crypto and self‑custody platform. ... deep expertise in Go, and TypeScript.What you’ll doDesign, implement, and operate scalable, resilient backend ... developers focus on building great products instead of managing complex crypto tooling.We're hiring a Backend ... database schema design to distributed cache strategies and sharding approaches.Your profile3+ years of 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

We are looking for a Full Stack Developer with a heavy backend emphasis to join our Growth Team.

Your ProfileWe are looking for a Senior Full Stack Developer (React / Next.js + Python) to join a strategic ... and international environment.4–5+ years of experience with React and Next.jsExperience developing backend

Backend: Solid experience with Python, Django, and PostgreSQL. ... Backend Development: Build scalable and secure APIs using Python and Django.

under strict latency and quality requirementsMinimum Qualifications5+ years of experience in ML or backend ... healthtechHighly collaborative, senior technical teamFully remote role based in BarcelonaFun off-sites and strong developer

.NET, PostgreSQL, and ReactComfortable working with AWS, Docker, and GitHubActively uses AI-powered developer ... company.Bachelor's degree in Computer Science or equivalent practical experience6+ years of professional backend

Location: Hybrid (Barcelona, Spain; 2–3 days in-office)Seniority: SeniorPosition: Backend EngineerSalary ... : €60,000 – €85,000 + phantom shares & benefitsWe are looking for a Senior Backend Engineer to join a ... highly technical robotics software team building backend systems for autonomous inspection robots. ... About the RoleThis is a hands-on senior backend role for someone who enjoys ownership, autonomy, and ... You will design, implement, and maintain production backend systems that are reliable, scalable, and

that your unique skills, passion and superdrive will help us achieve our vision.As a Senior Frontend Developer ... Next.js, and modern JavaScript/TypeScriptCollaborating closely with product managers, designers, and backend

Javascript Developer will analyze, develop, and track requirements for A/B tests on web platforms. Responsibilities include unit and manual testing, cross-functional collaboration, and code reviews. Requires 5+ years of experience as a Frontend Engineer with in-depth knowledge of JavaScript, TypeScript, HTML, and CSS.

customer experience and business growth.Your new roleDesign, implement, maintain and operate robust backend ... knowledge in server-side backend developmentHands-on experience with event-driven architecture and GCP ... 5+ years of professional experience as a software developerExperience with Kotlin (JVM) for backend developmentExtensive

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 ... than just point-to-point integration projects.Drive the product vision & roadmap for the Dow Jones Developer ... understanding of API architectures (REST, GraphQL, Event-Driven), platform technologies (API Gateways, Developer ... API offerings.Foster an "API-as-a-Product" mindset and a culture of consistency, quality, and developer-centricity

with a required overlap of US working hours (2-6 PM CET).Role & ResponsibilitiesAs a Senior Python Developer ... team player with a “can-do” attitude and the ability to constructively give and receive feedback.A developer ... Practices: Knowledge of API authentication methods such as OAuth and JWT.What We Look ForA detail-oriented developer

Lead Android Developer will design, develop, test, and maintain software for the Grow & Engage domain, focusing on customer acquisition, signup, premium memberships, and user engagement. Requires experience with the Android Open Source Platform, Material Design, Kotlin, Reactive programming, and testability principles.

The Frontend Developer will be responsible for developing and implementing user-facing features using ... control every process.Role DescriptionThis is a full-time hybrid role in Barcelona (Spain) for a Frontend Developer

Senior Front End Developer (Angular) Summary Location: Barcelona (Hybrid) Day Rate: NegotiableDuration ... They are looking to hire an experienced Front-End Developer on a contract basis for an initial contract ... until the end of 2026.About the Role We are seeking a talented and experienced Front-end Developer with