Senior Frontend Engineer – Scale UI for Observability

Senior Cloud Observability Engineer Location: Barcelona (Hybrid – 2 days/week) Contract: Permanent, Full-time The Opportunity We are seeking a Cloud Observability Engineer to join our International Technology Hub in Barcelona. We power the digital backbone of a global enterprise, managing a high-concurrency environment that serves millions of users across...

Freelance Senior Frontend Engineer (3k€ monthly fee)⚠️ We’re not looking for agencies or studios — only independent professionals.Hulahoop is looking for aSenior Frontend Engineer (Freelance) to help us design, build and scale the next generation of our digital platforms. We’re anearly-stage startupat the intersection of finance, culture and...

Madrid, Spain; Paris, France Datadog’s Product Engineering teams build the interfaces that customers rely on to observe, monitor, and troubleshoot their systems in real time. As a Senior Frontend Engineer, you’ll lead the development of complex UI features used daily by hundreds of thousands of users across our core observability products. You’ll...

A leading SaaS company in Madrid is looking for a Senior Software Engineer specialized in Frontend to design and maintain their core frontend platform. You will collaborate with multiple engineering teams to improve workflows and enhance UI libraries and developer tools. The ideal candidate has over 6 years of experience in frontend systems, deep knowledge...

About Stack AI Stack AI is democratizing access to Large Language Models through a user-friendly no-code platform integrating the best AI models (OpenAI, Anthropic, Google), data sources (OneDrive, Google Drive, Notion), and SaaS tools. We're backed by Y Combinator and Gradient Ventures, with thousands of users and hundreds of paying customers including...

A global SaaS company in Madrid is looking for a Senior Frontend Engineer to design and maintain UI libraries and developer tools. You will work on core frontend platform components, influence architectural decisions, and mentor engineers. The ideal candidate has over 6 years of experience with JavaScript and modern frameworks, along with a strong focus on...

A leading global technology company is seeking a Senior Software Engineer to join their cloud-native platform team in Madrid. The ideal candidate will have over 7 years of experience in a large-scale production environment and a strong background in scalable software development. You will be responsible for collaborating with distributed teams, enhancing the...

A leading global technology company is seeking a Senior Software Engineer to join their cloud-native platform team in Madrid. The ideal candidate will have over 7 years of experience in a large-scale production environment and a strong background in scalable software development. You will be responsible for collaborating with distributed teams, enhancing the...

Senior Software Engineer (Frontend) - Platform & Developer Experience Madrid, Spain; Paris, France Datadog’s Platform & Developer Experience teams build the foundational tools and systems that support every part of our product. As a Senior Frontend Engineer, you’ll design and maintain shared UI libraries, build pipelines, design systems, and developer...

A dynamic technology company in Spain is seeking a Senior Frontend Software Engineer specializing in Angular. The role involves enhancing applications, collaborating on UI components, and modernizing the frontend platform. Candidates should have over 7 years of experience in frontend development, strong collaboration skills, and fluency in English. The...