Empleos de ruby on rails developer en Madrid

Recruiter4you is seeking a Senior Ruby on Rails Engineer to join a fast-growing AI technology company behind an AI companionship platform used by millions worldwide. You’ll work on scalable, AI-powered applications, developing new features and improving existing functionality alongside the CTO, Tech Lead and wider engineering team.This is a hands-on...

Application Support Engineer II (Dev & AI Tech Enthusiast) We are looking for an Application Support Engineer II with a developer's mindset and a passion for AI-driven efficiency—someone who looks at a Tier‑2 bug and wants to read the source code to understand why it broke. Based in our Valencia hub, you will act as the crucial technical bridge between...

Titan Operating System in Barcelona is seeking an AI & Content‑Recommendation Developer to design, train, and deploy models and data pipelines that decide what to watch next on our Smart TV platform. You’ll touch the full ML lifecycle from exploration to online experiments, shipping features used by millions of viewers. The role requires strong...

We're Doofinder , we were born to make technology accessible for companies of any size, anywhere, to grow. Since 2011, our team has developed a top search technology for websites and eCommerce, that helps online retailers increase their sales. We are agile, open, inclusive and customer‑centric. But above it all, in Doofinder people come first. We are a...

Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We're redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace. Aircall is headquartered in Paris, our European HQ, with a...

Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We're redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace. Aircall is headquartered in Paris, our European HQ, with a...

Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We're redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace. Aircall is headquartered in Paris, our European HQ, with a...

Fullstack Engineer – Series B AI Startup | Spain (100% Remote) I’m partnered with a fast‑scaling AI startup, fresh off a Series B raise, looking for an early hire Developer to shape the next generation of their platform. You'll build the GenAI behind some of the products that you use every single day.This is a role for hands‑on builders who enjoy...

Aircall is a unicorn AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, faster resolutions, and scale. We're redefining what a customer communications platform can be—by combining voice, SMS, WhatsApp, and AI into one seamless workspace. The result—companies grow revenue, deliver faster resolutions, and...

Factorial, Madrid-based HR platform, is seeking engineers to own the API and integrations framework end-to-end, from problem definition through shipping, monitoring, and iteration in production.We value production-grade code, customer-focused thinking, and a track record of shipping real products. The team uses Ruby on Rails and React, with openness to other...

Your mission@Aircall Lead transversal, complex projects, fully autonomously from ideation to completion, starting from a high-level problem statement. Proactively communicate the technical vision across multiple teams, ensuring alignment and sharing knowledge across domains. Act as a go‑to expert, providing mentorship and guidance across teams. Deeply...

Welcome!Visible is on a mission to help startup founders succeed. We’re achieving this by building best-in‑class tools for startups and the venture capital investors who back them.Visible is a profitable, established software startup made up of 15 fully remote teammates across the globe and has been set up this way since Visible was founded in 2015 (we...

Описание:Q-tech is colaborating with a fast-growing international SaaS company that is opening a new engineering hub in Barcelona and is looking for a Staff Engineer. This is a backend-focused role with high ownership and real impact, working on Security management, APIs and integrations for a platform used by some of the most demanding customers in...

Описание: Factorial provides AI for businesses that connects information about company operations and turns that context into action, supporting tasks such as candidate screening, expense management, answering questions, and report creation. It serves more than 16,000 companies across 112 countries. Задачи: Own the CI and CD Kubernetes clusters...

We're looking for aFull Stack Engineerfor one of our clients who enjoys building new products from the ground up and is eager to help shape AI tooling for the mobility industry.Work across the full stack to solve complex problems using incomplete and messy dataDesign and evolve canonical data modelsBuild pipelines to handle real-world data inputsDefine and...

About the Role Nuestra empresa cliente, una startup dinámica en el sector deEducación y Formación , busca un Desarrollador Full-Stack talentoso y motivado para unirse a su equipo remoto. Si te apasiona construir aplicaciones web innovadoras y tienes experiencia tanto en el desarrollo front-end como back-end, esta es tu oportunidad para marcar la...

We're looking for aFull Stack Engineerfor one of our clients who enjoys building new products from the ground up and is eager to help shape AI tooling for the mobility industry.Work across the full stack to solve complex problems using incomplete and messy dataDesign and evolve canonical data modelsBuild pipelines to handle real-world data inputsDefine and...

FCM - part of the Flight Centre Travel Group family - are transforming the business travel industry. Based in Barcelona and paired with market-leading technology from our very own FCM LAB, we manage a wide portfolio of national and multinational clients in this niche market. Together, we are united by a single mission: developing and ensuring the best...

Hello! We're looking for a Staff Software Engineer to help build AI-native features into Factorial's product. Not a researcher, not a model trainer: a product engineer who builds with LLM APIs the same way we build with any other API, shipping real features to real customers in production. We're looking for a Staff Software Engineer to help build AI-native...

Aircall is a place where voices are valued.Backed by over $220 million of investment since ****, we create technology that fuels accessible, transparent and collaborative communication to empower our base of 20,000+ customers (and growing) to make authentic, human connections.Conversation is a cornerstone of our culture. Wherever our people find themselves...