Empleos de full stack engineer annotator en Sevilla

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...

Full Stack Developer - Telecom BSS - Remote - Applicants Must Be EU Citizens - 12 Month Contract We are looking for experienced developers to support and develop telecom BSS applications for a Telco customer. The role covers application development and ongoing application support within a TypeScript, Node.js and React environment, deployed on Kubernetes....

We’re launching a new team dedicated to modernizing and expanding one of our customer-facing tools — and we’re looking for a Senior Full Stack Engineer to help build it from the ground up This isn’t a legacy product handoff: you’ll be joining at the very start, shaping both the technical direction and the team culture from day one The current...

A global leader in language services is seeking a Senior Full Stack Engineer to modernize their core application and develop new features. The role involves working with experienced engineering teams on a cloud-native tech stack, focusing on both front-end and back-end functionalities. Ideal candidates will have extensive experience in .NET and a solid...

Role: Senior Full Stack Engineer (Remote) Location: Remote (Work from Anywhere) Role Overview: We are hiring for one of our clients, seeking a Senior Fullstack Engineer to work on a Full-Time basis. The role involves designing, developing, and maintaining full-stack applications using modern technologies. You will collaborate with cross-functional teams...

Altamira is hiring a Full-Stack Engineer (Laravel + React) to design and maintain backend features and APIs. The role includes implementing frontend components with TypeScript, React, and Next, building scalable software for global enterprises, and collaborating with product and design teams. The project emphasizes async-friendly collaboration and...

ElevenLabs is seeking Full-Stack engineers to develop and maintain both front-end and back-end components of our product suite. You will own end-to-end features and collaborate across engineering, growth and sales to solve critical problems. The role is remote globally, with optional offices in London, New York, San Francisco and Warsaw. We offer flexibility...

Jobgether SRL is seeking a Senior Full Stack Engineer (NET/React) based in Spain to build scalable, secure, and high-performing applications across backend and frontend layers. You will work with .NET/C#, React, Redux, and JavaScript, shaping architecture and development practices, and contributing to cloud-based solutions on GCP with CI/CD. You will mentor...

Lever, Inc. is partnered with a company seeking a Senior Full Stack Engineer based in Spain. You will build scalable applications using .NET/C#, React/Redux, and SQL databases, with GCP and CI/CD practices. The role blends hands-on coding with architectural input and mentoring, in a remote-first environment. You will collaborate with product and design teams...

A leading technology company in Spain is seeking a Frontend & Backend Developer Engineer for IoT Digital Platforms. You will develop innovative digital solutions for IoT devices and manage cloud services, requiring expertise in both relational and non-relational databases. The ideal candidate will have strong programming skills, hands-on experience with...

bunch is building the operating infrastructure for private markets. As a Full Stack Engineer with a frontend focus in our Platform team, you’ll shape frontend architecture, contribute to backend services, and help maintain our Design System. You will ship end-to-end features that empower thousands of users managing billions in assets. You’ll collaborate...

Lever, Inc. is seeking a Staff Full Stack Engineer - Sell Side Engine based in Spain. The role focuses on hands-on engineering to rebuild systems supporting origination, contracting, onboarding, and growth in a rapidly scaling energy technology environment. You will own architecture decisions, work across pricing, data, billing, and risk platforms, and...

Quik Hire Staffing is seeking a Senior Full Stack Engineer to design, develop and maintain full-stack applications remotely. The role involves collaborating with cross-functional teams to deliver scalable solutions and high-quality software across the stack. You will build RESTful APIs, microservices, and data architectures, write clean, well-documented...

Hired is seeking an experienced engineer to design, develop, and maintain high-quality code for training and optimizing AI models. You will evaluate model performance and rank responses across domains, while producing clear explanations and rationales for evaluations. The role also leads supervised fine-tuning with the creation and maintenance of...

Treatwell, Europe’s leading bookings platform, is seeking a full-stack engineer to join our Product Engineering team. You’ll focus 60% on frontend and 40% on backend across 13 markets, building SEO foundations, site performance, experimentation, analytics instrumentation, and growth-oriented product surfaces. You’ll partner with marketing and growth...

Avenue Code in Spain is seeking senior professionals with a generalist profile, strong backend with Node.js, and solid React frontend experience to own product initiatives end-to-end. You will develop features independently, contribute to architecture, and collaborate in a small, autonomous squad within a SaaS context, balancing speed, quality and...

LanguageWire Ltd is launching a new team to modernize and expand a customer-facing tool. We’re looking for a Full Stack Engineer to join us in building it from the ground up. The current stack is Vue.js on the frontend and Python on the backend, with a planned migration to .NET in the near future. You’ll work across these technologies and contribute to...

Albertine is seeking a seasoned full stack engineer to ship features across our TypeScript platform. You’ll shape API contracts, implement service and data work, and build the React UI members and agents actually use. Both halves must be solid in data choices and UX that feels finished. You’ll work across memberships, bookings, and billing with a focus...

bunch is building the backbone of private markets. We are enabling next-gen fund operations with one integrated system that combines secure data infrastructure, AI-powered workflows and expert fund services. If you value ownership, growth through real responsibility, and working with a thoughtful, ambitious team, this role might be for you. Your role ...

Super is seeking a talented Full Stack Engineer to join a fast-growing European team. You will own features end-to-end and collaborate with product managers, designers, and backend engineers to ship impactful updates with high performance and reliability. You will work with modern tech—TypeScript, React, Node.js, Vite, PNPM, AWS, Kubernetes—while...