1120 backend developer English-speaking jobs in Catalonia
Lead Frontend Developer (all genders)
- UDG United Digital Group GmbH
- Barcelona
- April 3
development of scalable component architectures and clean code standards
Close collaboration with UX, backend ... leading a team of developers
Very strong leadership skills to drive technology decisions and move a developer
Lead Frontend Developer (all genders)
- United Digital Group
- Barcelona
- April 1
development of scalable component architectures and clean code standards
Close collaboration with UX, backend ... leading a team of developers
Very strong leadership skills to drive technology decisions and move a developer
Delta Team: Senior Back-End Developer
- Maze Impact SA.
- Barcelona
- March 31
How You’ll Make An Impact: Design, build, and maintain scalable backend services for SaaS platform. ... About the role We are seeking an experienced Senior Back-End Developer to join an exciting new internal
Senior Full Stack Developer
- Allianz Technology
- Barcelona
- April 1
About The Job
As Full Stack Developer, you will be assigned to the Global Build Area, which is responsible ... What You Do
Design and implement end-to-end solutions across frontend, backend, and database layers ... environments
Comply with Allianz architecture, security, and coding standards
What You Bring
Backend
Senior Applied Data Science Engineer
- Siemens Energy
- Barcelona
- April 3
We build reusable backend services, AI/ML platforms, and lifecycle tools to support cloud, on‑prem, and ... enable teams to deliver intelligent solutions faster and with higher quality – through automation, developer ... systems is a plus
About the Team
The Scalable Core team drives the foundational technologies and developer
Senior ML/LLM Engineer (API & Fullstack) - English Mandatory
- Sopra Steria
- Barcelona
- April 1
Backend Developer ( Java + Python) 100% remoto Full Stack Django Developer (Fully Remote) We’re unlocking
Senior iOS Developer
- Manychat
- Barcelona
- April 1
Collaborating with backend, frontend, Android, and iOS developers and designers, you’ll play an active ... TO BE SUCCESSFUL IN THIS ROLE 💥
You’ll Need
5+ years of experience as an iOS developer (Swift). ... Who We're Looking For 🌟
We are seeking an experienced Senior iOS Developer to join our cross‑functional
Senior Full Stack Developer
- Allianz Technology Se Spain Branch
- Barcelona
- April 1
Senior Full stack Developer
About the Job
Join Tribe LifePortals as a Senior Full Stack Developer and ... What you do
Work in an agile team and drive the further frontend and backend development and operation
(fluent Ukrainian) Middle Full-Stack Web Engineer (Node.js/Vue)
- SupportYourApp
- Barcelona
- April 1
Technical Stack
Frontend — SvelteKit, Vue.js, TailwindCSS;
Backend — Node.js, Go, PHP;
Infrastructure ... Are you a detail‑oriented full stack developer who enjoys building polished, high‑performance web applications ... stability of the platform
What you need to succeed in this role
2+ years of experience in a Full‑Stack Developer
.NET Software Developer - C#
- InnoIT Consulting
- Barcelona
- April 3
re looking for experienced .NET Software Developers to lead the design, development, and delivery of backend ... Requirements
Backend: .NET Core, C#, Entity Framework, ASP.NET Core Web API
Microservices architecture
AI Web3 Backend Engineer – AI Agent Economy
- DcentraLab
- Barcelona
- March 31
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
Full-Stack Developer
- Satellogic
- Barcelona
- April 1
Aleph
Full-Stack Developer (f/m/d)
About Satellogic
Satellogic is a vertically integrated Earth Observation ... About the Position
We are seeking an experienced Full‑Stack Developer to take on End‑to‑End ownership ... Backend & Data: Expertise in Python for building web APIs and services, along with strong data modeling ... Quality & Testing: Proficient in backend testing tools and practices (pytest, coverage, mocks) and frontend
Backend Engineer
- Cirql One GmbH
- Barcelona
- April 3
Requirements
Backend depth. ... Take a problem from schema design through backend logic, API, and the edges of the frontend.
Backend Engineer
- Holaluz Clidom, S.A.
- Barcelona
- April 1
Join our team as a Backend Engineer and contribute to the construction of innovative technological solutions ... Requirements: Solid knowledge of: At least one backend programming language (Java, Python, Node.js, etc
Backend Engineer
- Wallapop
- Barcelona
- March 31
At Wallapop, as a Backend Engineer, you'll own team microservices, fully embracing the DevOps philosophy
Frontend Engineer (React)
- Titan OS
- Barcelona
- April 6
and team objectives
What makes you a great fit
4+ years of relevant experience as a JavaScript developer ... development and documentation
Conduct code reviews of work done by other engineers in the team
Work with backend
Test Automation Engineer
- King
- Barcelona
- April 4
Backend familiarity (e.g., Java) for integration testing of connected game services. ... Drive improvements in test reliability and developer experience: faster pipelines, better failure artifacts
iOS Engineer
- Abbott Laboratories
- Barcelona
- April 3
building a cutting edge digital health platform that fuses continuous biosensor data, high performance backend ... Improve and maintain reusable components, architectural patterns, and developer workflows for greater
Ai Full Stack Developer With C# And Angular For The Health Industry
- OSINT Analytics
- Barcelona
- April 3
Experience in backend development in C# for SAAS systems.
Knowledge of PHP and Phyton is a plus. ... Position Overview
As a Full Stack Developer, you will be required to collaborate with the design, development
Front End Developer with Angular
- CREALOGIX
- Barcelona
- April 3
Experience collaborating with multidisciplinary teams, including QA, backend (BE), UX/UI, BA, IT, and ... during QA testing and in post-release patches
Qualifications
4+ years of experience as a Front-End Developer





















