full stack ruby on rails

Senior Backend Developer (Ruby on Rails) Madrid, A Coruña, Salamanca, Barcelona, Ciudad Real | Hybrid Model | Full-time | Permanent Contract At TeamSystem | Quipu, we help thousands of freelancers, SMEs, and accounting firms across Spain manage their businesses simply and efficiently through an intuitive and reliable SaaS platform. Since October 2025,...

We’re looking for a strong Full Stack Software Engineer who enjoys building scalable products, solving real engineering problems, and working closely with Product and Design teams. This is a hands‑on individual contributor role where you’ll have the opportunity to own features end‑to‑end — from technical design to development, testing, and...

We are an enterprise AI platform designed specifically for technical commercial teams within industrial manufacturing. Our customers produce mission critical components, from transformers to nuclear facility hardware, and rely on our software to navigate multi-million euro project tenders daily.The business is fully bootstrapped, profitable, and financed...

We're looking for a strong Full Stack Software Engineer who enjoys building scalable products, solving real engineering problems, and working closely with Product and Design teams. This is a hands-on individual contributor role where you'll have the opportunity to own features end-to-end — from technical design to development, testing, and delivery. What...

We’re hiring a Java Full Stack Developer to join an international Financial Services project focused on the evolution, maintenance and modernization of business-critical applications. The role combines Java backend development with Angular frontend development, within an Agile environment, and also includes exposure to Cybersecurity and IT Risk topics such...

Senior Full Stack Software Developer - FinTech PlatformAt Shakers, we're partnering with a company building a next-generation financial services platform to bring on a Senior Full Stack Software Developer. It's a hands-on role with real ownership over core systems, working two days a week from a Madrid office in Retiro.Dé el siguiente paso en su carrera...

We are looking for a talented Full Stack Developer to join our Digital Innovation Hub in Barcelona. As part of the hub, you will help drive strategic digital initiatives across areas such as eCommerce, product configuration, analytics, and digital sales innovation. Led by experienced startup professionals, the hub combines the agility and entrepreneurial...

Position: PostgreSQL Full Stack Engineer Location: Barcelona, Spain or Remote based in LATAM , EU or ASIA Company Overview: We are an investor-backed AI startup based in Barcelona, Spain. Our mission is to revolutionize the way businesses use AI technology by providing cutting-edge solutions that drive growth and innovation. We are a diverse team of...

We're launching a new team dedicated to modernizing and expanding one of our customer-facing tools — and we're looking for a Full Stack Engineer to join us in building it from the ground up. This is a newly formed team, not a legacy product, so you'll be part of shaping how it works from early on The current stack is Vue.js on the frontend and Python on...

TeamSystem | Quipu is seeking a Senior Backend Developer (Ruby on Rails) to strengthen our SaaS platform used by thousands of freelancers, SMEs, and accounting firms across Spain. You will build backend solutions, maintain and improve features, and contribute to an agile lifecycle with a cross-functional team in a hybrid Madrid-based model.Join a growing...

We're launching a new team dedicated to modernizing and expanding one of our customer-facing tools — and we're looking for a Full Stack Engineer to join us in building it from the ground up. This is a newly formed team, not a legacy product, so you'll be part of shaping how it works from early onThe current stack is Vue.js on the frontend and Python on the...

What you’ll be working on Build and deliver high-quality back-end and front-end features across web platforms. Design and develop reliable, scalable, and maintainable services. Contribute to technical design, architecture, and implementation decisions . Work closely with Product Managers and Designers to turn ideas into working solutions. Write clean,...

Your mission Bookboost is the Hospitality Engagement Platform that empowers hotels to understand and engage their guests like never before. We unify guest data, automate personalised communication, and deliver experiences that drive revenue, loyalty, and operational excellence.We have customers across more than 20 countries and a platform that wins on depth....

We’re Kabilio, a company backed by two leading venture capital firms, founded by experienced entrepreneurs, Alex Valls and Jose Ojeda, with a strong track record in building and scaling successful tech companies. What We’re Building Our goal is to become the go-to Financial Operating System for accounting firms and SMEs in Southern Europe, unifying...

Our client is transforming the car rental industry through an asset-light, data-driven platform that helps dealerships and workshops turn idle vehicles into new revenue streams. With 650+ locations across Europe and the US, their marketplace connects vehicle supply with customer demand while supporting expansion into new international markets. They're now...

As part of our Engineering Hub in Madrid, the Full Stack Engineer will take ownership of exciting projects that touch both frontend and backend technologies. In this role, you’ll design, build, and deploy high-performance applications that power streaming platforms used around the world. In this specific case, the role will be key in building new features...

Who are we, and why are we hiring?Descubra si esta oportunidad es adecuada para usted leyendo toda la información que sigue a continuación.We're based on over 15 years of success, producing world-class video content and building, developing, and managing a number of high-traffic websites. Our award-winning content and websites are created exclusively by us...

Direct message the job poster from Ibancar World Join Our Team as a Full Stack Developer at Ibancar Ibancar is an innovative fintech business in the online lending / consumer credit sector that operates in Spain and is expanding to Mexico. The business is one of the fastest growing VC backed scale‐ups in Spain and is revolutionizing digital lending...

ubimia es una compañía multinacional que ofrece soluciones tecnológicas para el ciclo de vida integral del crédito y para diversas necesidades corporativas, impulsando la eficiencia en los procesos de negocio. Con más de 600 colaboradores/as, trabajamos en un entorno flexible, dinámico y en crecimiento constante.Estamos buscando: Desarrollador/a...

Deeto is transforming how B2B companies grow by turning their customers into their most powerful growth engine. Our AI‑powered voice of customer (VoC) platform makes it effortless for companies to capture, organize, and activate authentic customer voices—delivering the right proof points at the right moment to accelerate deals and build trust at...