Empleos de backend full stack engineer en Valencia

YO AI Labs is seeking experienced Full-Stack Software Engineers to support an AI training project focused on software development, debugging, code evaluation, and technical problem-solving. This is a contractor role offering about 15 hours per week and fully remote work globally. Responsibilities include building and debugging frontend and backend systems,...

A leading software company in Ribarroja del Turia is seeking a Full Stack Engineer to build and evolve a secure, cloud-based SaaS platform. The ideal candidate will have over 4 years of experience in SaaS, high proficiency in Java, React, and SQL, along with a DevOps mindset. This position emphasizes collaboration with product and design teams and offers a...

Sr. Full-Stack Software Engineer - Remote Full-Stack Software EngineerLocation: Global, Fully RemoteJob Type: Contractor | ~15 hours/weekSchedule: FlexibleWe're looking for experienced Full-Stack Software Engineers to support an AI training project focused on software development, debugging, code evaluation, and technical problem-solving.Key Responsibilities...

* 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...

Albertine builds white-label digital concierge experiences for luxury brands and their members. The product runs on a multi-tenant TypeScript platform: a Hono API that powers member-facing concierge apps, LMT - the internal platform agents use to manage members and operations - plus payments, recommendations, messaging, and a growing set of third-party...

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Full-Stack Engineer (Backend Leaning) – Payments Engineering based in Spain. As a Full-Stack Engineer specializing in backend development, you will help build and evolve the payment infrastructure that powers a rapidly growing...

Company:SimpleStudy is a consumer AI platform for students.We help them stay motivated to study their subjects - everything from Biology and Mathematics to Literature and Art.We are a remote team with a Lisbon office, having recently raised ~$4M seed round with incredible investors from Strava, OpenAI, and Meta.Team:Engineering is strong, anchored by Affan...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior+ Full-Stack Engineer based in Spain.As a Senior+ Full-Stack Engineer, you will build and evolve a developer infrastructure platform that enables AI applications and agents to connect seamlessly with external APIs and...

We are looking for a Senior Full Stack Engineer to join one of our Product Tribes, the cross-functional units that own the end-to-end experience for a specific Toggl user role. You'll join the Tribe building for managers, the people who plan work, protect margins, and keep projects on time and on budget.You own significant parts of that experience...

LanguageWire is a global leader in language and content services, dedicated to helping brands achieve their full global potential. Since our founding in 2000, we have continuously evolved and developed unique technology to facilitate seamless multilingual communication. Our worldwide network of language experts, coupled with an intuitive online platform,...

We're committed to achieving equity in treatment and opportunity for everyone, where people are judged on the merits and quality of their work.It all starts with people. Inside every company, behind every brand - while business success is often measured in profit, it has always been powered by people. Position Summary:The Engineering Team employs some of...

Senior Full Stack Engineer | B2B Contract | Fully Remote | €600/day We’re looking for a Senior Full Stack Engineer to join an exciting e-commerce company on a 6-month B2B contract, with a strong possibility of extension. This is a hands-on engineering role for someone who enjoys building scalable products, working across the stack, and making the most of...

MarsBased is a development agency from Barcelona specialising in AI-augmented software development. We don’t just use AI; we are actively rewriting the rules of modern engineering. By combining elite human expertise with advanced agentic workflows, we build end-to-end web and mobile applications faster, smarter, and to a higher standard than ever before....

About the Role Working with a Series B Tech startup within energy industry. We are looking for a Staff Full Stack Engineer to lead technical vision, architectural design, and execution across systems driving their expansion. You will build high-impact backend infrastructure, automate tendering workflows, design deal-gating risk tooling, and deploy agentic...

Overview Take your career to the next level with Amaris Consulting as a Full Stack Developer . Be part of an international team in an agile environment with a €800M turnover and over 1,000 clients worldwide. Spanish fluency is required for this role. Responsibilities Develop and maintain robust web applications using Node.js and Angular ....

Apiux Tecnología busca un Desarrollador Full Stack Senior para participar en todo el ciclo de desarrollo de aplicaciones web, desde el análisis y diseño hasta la implementación en un entorno multicultural guiado por Scrum. Se exige más de 5 años de experiencia y capacidad para trabajar en inglés.La posición es indefinida y 100% remota, con horario de...

Albertine builds white-label digital concierge experiences for luxury brands and their members. The product runs on a multi-tenant TypeScript platform: a Hono API that powers member-facing concierge apps, LMT - the internal platform agents use to manage members and operations - plus payments, recommendations, messaging, and a growing set of third-party...

Company:SimpleStudy is a consumer AI platform for students.We help them stay motivated to study their subjects - everything from Biology and Mathematics to Literature and Art.We are a remote team with a Lisbon office, having recently raised ~$4M seed round with incredible investors from Strava, OpenAI, and Meta.Team:Engineering is strong, anchored by Affan...

Join Vonage and help us innovate cloud communications for businesses worldwide! Why this role matters: We’re seeking a Java Software Engineerto join our Cloud Engineering team and help drive innovation across the Vonage Video Platform. This role will focus on enhancing our PaaS backend systems, improving cloud resource control and provisioning, and...

Why Join Us? 100% remote | Global team | Full-time If you're looking to work on cutting-edge AI products, solve challenging problems, and be part of a fast-moving, high-talent team, you'll love it here. Join NineTwoThree AI Studio, a remote-first product design, engineering, and marketing studio, founded in 2012 and based in Boston. We build AI-powered web...