# LangChain jobs in Barcelona for English speakers > On 10 November 2026: 15 open LangChain jobs in Barcelona, from 12 companies. Source: Spain Dev Jobs, https://spain-devjobs.com/jobs/tech/langchain/in/barcelona 15 open LangChain jobs in Barcelona at companies where English is the working language, so you don't need to speak Spanish. Posted salaries range from €45k–175k a year. ## Jobs - [Senior Backend Engineer (Python) - AI](https://spain-devjobs.com/jobs/splitmetrics-senior-backend-engineer-python-ai-w6o9ptz): SplitMetrics, Barcelona, Spain. Remote (EU). Posted 6 November 2026. - [Lead AI & Data Engineer – APD Platform](https://spain-devjobs.com/jobs/astrazeneca-lead-ai-data-engineer-apd-platform-pyspx4r): AstraZeneca, Barcelona, Spain. On-site. Posted 29 October 2026. - [Senior AI/ML Engineer](https://spain-devjobs.com/jobs/ecovadis-senior-ai-ml-engineer-u3tkv1a): EcoVadis, Barcelona, Spain. Remote (Spain). Posted 15 October 2026. - [Full Stack Developer – AI Reporting & Insights](https://spain-devjobs.com/jobs/mondelez-international-ai-engineer-full-stack-developer-ai-reporting-insights-barce-hrwwkjy): Mondelēz International, Barcelona, Spain. On-site. Posted 15 October 2026. - [Senior Knowledge Graph Engineer](https://spain-devjobs.com/jobs/ecovadis-senior-knowledge-graph-engineer-ubtjcxd): EcoVadis, Barcelona, Spain. Remote (Spain). Posted 15 October 2026. - [Senior Machine Learning Engineer](https://spain-devjobs.com/jobs/dow-jones-senior-machine-learning-engineer-92vo9bu): Dow Jones, Barcelona, Spain. On-site. Posted 7 October 2026. - [Senior Software Engineer, AI](https://spain-devjobs.com/jobs/dow-jones-senior-software-engineer-ai-dkmr0rq): Dow Jones, Barcelona, Spain. On-site. Salary: €45k–65k / year. Posted 5 October 2026. - [Principal Forward-Deployed Engineer](https://spain-devjobs.com/jobs/thoughtworks-principal-forward-deployed-engineer-4innhcb): Thoughtworks, Barcelona, Spain. On-site. Posted 14 September 2026. - [Enterprise Architect (m/f/d)](https://spain-devjobs.com/jobs/allianz-enterprise-architect-m-f-d-iuzcg8i): Allianz, Barcelona, Spain. On-site. Posted 8 September 2026. - [Senior Backend Engineer - Community and Engagement](https://spain-devjobs.com/jobs/bsport-senior-backend-engineer-community-and-engagement-cdk0kph): bsport, Barcelona, Spain. Hybrid. Salary: €65k–108k / year. Posted 7 September 2026. - [Senior Backend Engineer, AI Platform - 100% Remote - EMEA](https://spain-devjobs.com/jobs/hostaway-senior-backend-engineer-ai-platform-100-remote-emea-iwudchg): Hostaway, Barcelona, Spain. Remote (Spain). Posted 3 September 2026. - [Senior AI Engineer](https://spain-devjobs.com/jobs/allianz-senior-ai-engineer-s00184s): Allianz, Barcelona, Spain. On-site. Posted 16 July 2026. - [Staff Machine Learning Ops Engineer](https://spain-devjobs.com/jobs/preply-staff-machine-learning-ops-engineer-lbg65i9): Preply, Barcelona, Spain. Hybrid. Posted 24 June 2026. - [AI engineer](https://spain-devjobs.com/jobs/lucis-ai-engineer-f998qwt): Lucis, Barcelona, Spain. Hybrid. Posted 8 April 2026. - [AI Software Engineer (senior/staff level)](https://spain-devjobs.com/jobs/joko-ai-software-engineer-senior-staff-level-hqq3ms6): Joko, Barcelona, Spain. Remote (Spain). Salary: €76k–175k / year. Posted 25 March 2026. ## Frequently asked questions ### How many English-speaking LangChain jobs are there in Barcelona? Spain Dev Jobs lists 15 English-speaking LangChain jobs in Barcelona right now, at 12 companies where English is the working language. Jobs come straight from the employers' own careers pages and are checked every day, and closed jobs are removed. Get new ones by email with [job alerts](https://spain-devjobs.com/subscribe). ### Do I need to speak Spanish to get a LangChain job in Barcelona? No. None of the 15 jobs listed here asks for Spanish. You apply in English, on the employer's own site. Every company on Spain Dev Jobs works in English, and jobs that need business-level or fluent Spanish are left out. ### What do LangChain jobs in Barcelona pay? 3 of the 15 jobs listed here state a yearly salary in EUR. Posted salaries range from €45k–175k a year. Salaries appear only when the employer states them; Spain Dev Jobs never estimates pay. [Sort these jobs by salary](https://spain-devjobs.com/jobs?city=barcelona&tech=langchain&sort=salary) to see the best-paid first. ### Are there remote LangChain jobs in Barcelona? Yes. 5 of the 15 jobs listed here are fully remote; the rest are hybrid or on-site. 1 of the 15 say you can apply from anywhere, so check each job post for where you need to live. 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