Empleos de backend-first full stack engineer ai-native en Valencia

Jobgether SRL is seeking a Full-Stack Engineer with a Backend focus to help build foundational platform systems powering AI products. The role involves user management, workspaces, authentication, permissions, and resource access, with work spanning backend services to admin dashboards. You will own features end-to-end, collaborating with Product, Sales, and...

Trimble is seeking a Staff Software Engineer (AI Native) to drive the architectural future of our SaaS cloud-native TMS platform. You will lead an end-to-end technical strategy, mentor senior engineers, and champion AI-native development practices across globally distributed teams. You will influence architecture for high-availability services, integrate...

Jobgether SRL is seeking a Senior Full-Stack Product Engineer based in Spain to lead backend development and core product features. You will own end-to-end delivery, architect scalable systems, and collaborate with a lean team to drive AI-native innovations using Node.js, TypeScript, AWS, and modern frontend hooks. You will work across the stack with...

Develops full stack applications, implements software, and works with cross-functional teams, requiring experience with React, Node.Js, and TypeScript.

This position is listed on behalf of a partner company. Our partner is looking for a Full Stack Engineer based in Spain.As a Full Stack Engineer – AI Systems, you will build production-ready AI applications that transform how people manage their emails, calendars, notes, and everyday tasks.You will work at the intersection of full-stack engineering 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...

Full-Stack Engineer Own products for years rather than weeks — build them properly, keep them alive, and make the agentic build method something a team can rely on.Mainloop is anew engineering team inside an established international group.We are in Barcelona, we are being built from scratch this year, and we have the backing, the customers and the product...

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) – Platform Engineering based in Spain.As a Full-Stack Engineer with a strong backend focus, you will help build the foundational systems that power a suite of innovative AI products used...

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...

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. WHY JOIN US If you're looking for a place to grow, make an...

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. WHY JOIN USIf you're looking for a place to grow, make an...

Role - Video Conferencing- Full stack Engineer Location - Remote (Spain/Poland/Germany/Netherlands) Type of employment - FTE (4 months) The objective of this project is to support vendor selection through an extensive discovery, evaluation, and prototyping phase. We are seeking contractors with deep expertise in video conferencing platforms who can help...

Jobgether SRL is seeking a Full-Stack Engineer (Backend Leaning) – Payments Engineering, based in Spain. You will build and evolve the payment infrastructure powering billing, usage tracking, pricing, and payment processing for self-service and enterprise customers in an AI-focused environment. This remote role offers significant technical ownership,...

Mondelez International Inc. busca un Desarrollador Full-Stack Senior para unirse a su equipo. El puesto, que se realiza de forma remota desde Madrid, implica diseñar, desarrollar y desplegar aplicaciones web modernas.Colaborarás con UX/UI designers, PMs y otros ingenieros para entregar nuevas funcionalidades. Se espera código limpio, pruebas unitarias y...

AgileEngine is an Inc. **** company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries.We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.WHY JOIN USIf you're looking for a place to grow, make an...

AppWork is seeking a Senior Full Stack Engineer to join our R&D team in Spain. You will shape the product experience from frontend interfaces to scalable backend systems, collaborating closely with design and product to deliver seamless, impactful user experiences. You will mentor peers, drive architectural decisions, and help deliver high‑quality web...

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,...

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....

Senovo IT Ltd is seeking an experienced Forward Deployed Engineer for a remote, freelance/B2B role with occasional onsite visits to Barcelona. You will own end-to-end software development, integrating AI capabilities and automation into business applications while collaborating with business and technical stakeholders in English.The ideal candidate has...

Braintrust is seeking an AI Engineer to build and scale LLM-based conversational agents for a healthcare-focused platform. You will design prompts, decision logic, and integrate AI with backend services, queues, and APIs across a remote environment.The role requires mid to senior level backend expertise, hands-on chatbot experience, independence, and strong...