Empleos de senior java full-stack engineer remote rest en Barcelona

Video Conferencing Full-Stack Engineer (Contract)About UpStackUpStack is a talent placement platform that connects vetted, senior level software engineers with companies around the world, including Squarespace, IKEA, TaskRabbit, and Intercom. Every engineer in our network goes through a multi stage vetting process covering technical skill, communication, and...

# **Our Vision & Products** ***EverAI — Building the Future of AI Companionship*** *One of the Top 15 Largest & Fastest-Growing AI Companies in the World* *50 Million Users in 2 years — Help Us Reach 100M first, 500M next* At **EverAI**, we’re shaping what it means to connect with AI. With **50 million users and counting**, we're not just building...

Affirm, Inc. is hiring a Software Engineer II, Fullstack (Repayment UX) to join our remote-first team based in Spain. You will help design and ship backend systems and web apps using React or Vue, with optional React Native experience.The role supports a European-wide time zone and requires on-call rotation. The Repayment UX team works across product,...

Akens \ Nordburg sucht für ein deutsches IT-Unternehmen einen erfahrenen Fullstack Java Developer (m/w/d) zur Verstärkung des in Spanien ansässigen Entwicklungsteams. In dieser Position sind Sie an der Konzeption, Entwicklung und Weiterentwicklung moderner Webanwendungen beteiligt und arbeiten sowohl im Backend als auch im Frontend. Sie setzen auf einen...

We are still looking for the very Top Talent…and we would be delighted if you were to join our team! More in detail, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work , with more than 35,000 employees worldwide and a presence in over 35 countries. We are leaders in digital technology services,...

Zartis is seeking a Full Stack Engineer with a strong backend focus to join our distributed team. You will design and implement production-grade services in Java Spring Boot, with an emphasis on scalable APIs, data modeling, and robust cloud infrastructure.You will collaborate across product and engineering, practice DevOps, and contribute to an...

About the companyBiorce is a pioneering Healthtech company dedicated to revolutionizing drug development through the power of AI. We are passionate about accelerating medical advancements and improving patient outcomes.Our team comprises seasoned clinical research professionals, data scientists, and AI experts, working collaboratively to bridge the gap...

Today, we are 80+ people, serve 900+ customers, raised €12 million in 2026, and are expanding internationally. We are building the financial operating system for construction: bringing AI, automation, and modern software to an enormous industry still full of slow, fragmented processes. We are looking for a product-minded Full Stack Engineer who leans...

Knowmad Mood en España busca un desarrollador/a senior backend Java para un importante cliente del sector textil. Trabajarás 100% remoto con contrato indefinido, aportando soluciones escalables y una visión de alto rendimiento en microservicios y arquitectura hexagonal.Formarás parte de un equipo dinámico, con foco en innovación, pruebas, OpenAPI y...

Full-Stack Software Engineer **Location:** Global, Fully Remote **Job Type:** Contractor | :15 hours/week **Schedule:** Flexible We'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...

Develop full-stack features for an agentic AI platform. Design APIs, frontends (React, Typescript), and backends (Python, FastAPI). Collaborate with ML engineers.

InnoIT Consulting in Barcelona/Madrid is seeking a Senior Full-Stack / GenAI Engineer to join an international AI products team, working on a secure, enterprise-grade GPT platform. You will primarily build back-end services using Node.Js/TypeScript, with additional front-end contributions in Next.Js and React, and design APIs for scalable, compliant...

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 (F# / ASP.NET Core / ReactJS) based in Spain. Join a product-focused engineering team building modern SaaS solutions that simplify complex business and governance processes. As a Senior Full Stack...

VISEO IBERIA busca ampliar su equipo con especialistas en Frontend y Java para proyectos internacionales. Se valorará experiencia en Java (SpringBoot) y experiencia en Angular/React, con foco en microservicios, CI/CD y migraciones.Ofrecemos contratación indefinida, opción de teletrabajo y beneficios sociales. Remoto desde Madrid es posible y las...

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting‑edge solutions empower businesses—from exchanges and wallets to

Our Vision & Products EverAI — Building the Future of AI Companionship One of the Top 15 Largest & Fastest-Growing AI Companies in the World 50 Million Users in 2 years — Help Us Reach 100M first, 500M next At EverAI , we’re shaping what it means to connect with AI. With 50 million users and counting , we're not just building products — we're...

We are looking for a Senior Full-Stack / GenAI Engineer to join an international AI Products team working on the evolution of a secure, enterprise-grade GPT platform. You will contribute mainly to back-end development (around 90%), with occasional front-end contributions, building secure and scalable features for document understanding, translation, APIs,...

About The Agile MonkeysWe're a software studio of 75+ people, and still growing. We build production AI systems for regulated industries like healthcare, insurance and banking, mostly for US clients. We also build our own AI-native products. AI isn't a layer we add on top. It's how we work and what we ship.About the roleWe're growing several teams at once,...

A GFT Brasil busca um desenvolvedor Full Stack para atuar em projeto estratégico com foco em Java, Spring Boot e front-end em React e/ou Angular. O profissional ficará responsável por desenvolver e manter aplicativos backend, interfaces web modernas e integrações via APIs RESTful. É desejável experiência com bancos de dados relacionais e NoSQL,...

Plexus Tech busca perfiles con al menos 4 años de experiencia desarrollando con Java y Angular para proyectos innovadores en el ámbito IT. El proceso incluye pruebas técnicas en Java y Angular, seguido de una videollamada. Se ofrece contratación indefinida, jornada intensiva en verano y flexibilidad horaria, además de acceso al Club Benefits con...