Join anyone-ai as an AI Software Engineering Trainer, where you will play a pivotal role in shaping the future of AI education. Your expertise in software engineering and AI technologies will help guide aspiring professionals in mastering cutting-edge methodologies.As part of our innovative team, you will be responsible for developing and delivering training programs, creating engaging content, and mentoring participants to achieve their career goals in AI.

About the Role anyone-ai is looking for a Full-Stack Developer focused on AI training. This position is based in Spain. The role calls for experience across both front-end and back-end development to build and support software that helps train AI systems. What You Will Do Design, code, test, and maintain software applications that support AI training projects Work with cross-functional teams to improve user experiences Contribute to both front-end and back-end solutions Location This is a Spain-based position.

Anyone AI seeks experienced Backend Developers based in Spain to support a high-profile AI laboratory project. This remote, part-time role centers on expert evaluation tasks and the creation of realistic software engineering exercises. Role overview As a Backend Developer - AI Trainer, the primary focus is on designing and assessing complex coding challenges. Tasks include bug fixes, feature development, refactoring, migrations, and test generation. The position involves both creating coding scenarios and reviewing peer submissions for accuracy and quality. Responsibilities Design and implement multi-file coding assignments covering bug resolution, new features, refactoring, and testing Write clear, natural-language specifications and provide reference implementations Develop and improve unit and integration test suites Review and evaluate peer-generated tasks for correctness, clarity, and realism Identify edge cases, ambiguities, and potential failure points Ensure alignment between specifications, code, and expected results Requirements Exceptional written English skills 3–7 years of experience in software engineering Advanced proficiency in Python and JavaScript or TypeScript; familiarity with Java, C#, or Go is a plus Background in backend or full-stack development within production settings Knowledge of testing frameworks such as pytest, Jest, JUnit, xUnit, or Go testing Strong debugging skills and the ability to navigate large, multi-file codebases Experience with code reviews, refactoring, and production migrations Engagement details Part-time, project-based work Remote from anywhere in Spain Expected outcomes Deliver high-quality, production-ready coding tasks that meet industry standards

Join Anyone AI, where we're on the lookout for talented Full-Stack Developers to collaborate on innovative projects with a leading AI laboratory. This is an exciting opportunity to be at the forefront of AI technology.

Role Overview anyone-ai is looking for a Backend Developer - AI Trainer based in Spain. This role focuses on building and improving backend systems that support AI training projects. What You Will Do Develop and refine backend infrastructure to support AI model training and deployment. Work closely with team members to optimize systems for real-world AI applications. Contribute technical expertise to help strengthen the performance and reliability of AI models. Collaboration Work alongside a group of professionals committed to advancing AI technology. Teamwork and knowledge sharing are central to this position.

Mindrift brings together subject matter experts and AI projects from top technology companies. The team collaborates globally to apply real-world knowledge to Generative AI work. Role overview This freelance, part-time position focuses on the Tendem project. Based in València or working remotely from the Valencian Community in Spain, the Low-Code Automation Engineer will design, build, and refine automation workflows. The role uses platforms like Make.com and n8n, along with JavaScript, to connect and optimize business systems. What you will do Create and review complex automation workflows for various business tools and platforms. Develop and enhance workflows using low-code platforms such as Make.com and n8n, along with APIs, webhooks, and event-driven logic. Integrate custom JavaScript to manage advanced logic, data transformations, and edge cases within automation tools. Connect and synchronize data across systems like Airtable, Google Sheets, Notion, and CRMs. Implement error handling, logging, and backup strategies to keep workflows running reliably. Troubleshoot and optimize automations to minimize failures and improve efficiency. Support automation of communication and operational processes, including messaging, outreach, and notifications. Who this role suits This position is well suited to professionals with experience in low-code automation, workflow design, and JavaScript customization. Strong problem-solving abilities and attention to quality assurance are important for success. Compensation Contributors can earn up to $50 per hour, depending on expertise and level of contribution. Actual rates vary by project scope, complexity, and required skills. Other Mindrift projects may offer different rates based on their needs.

Are you passionate about the Spanish language and ready to influence the future of artificial intelligence? As AI technology evolves, large-scale language models are transforming from simple chatbots into sophisticated tools for linguistic exploration. By providing high-quality training data, we can enable AI to facilitate world-class education, enhance modern research, and improve communication for Spanish speakers globally. Your expertise is crucial in this evolution—we invite you to be a part of it!We are seeking Spanish (Spain) language specialists with an in-depth understanding of phonetics, morphology, syntax, semantics, pragmatics, and sociolinguistics. Your role will involve challenging advanced language models on various linguistic topics such as verb conjugation, noun-adjective agreement, subjunctive usage, sentence structure, regional dialects, word order, idiomatic expressions, and cultural subtleties—diligently documenting any discrepancies to strengthen model reasoning.On a daily basis, you will engage with the model on language scenarios, verify its factual accuracy and logical integrity, capture reproducible error patterns, and propose enhancements to our prompt engineering and evaluation metrics.A Master’s degree or PhD in Spanish language, linguistics, or a related field is preferred. Experience with peer-reviewed publications, teaching, or practical linguistic analysis projects will be advantageous. Exceptional communicative skills and the ability to articulate your thought process are essential.Are you ready to leverage your Spanish language expertise to create the knowledge base for the AI of tomorrow? Apply now and contribute to shaping the model that will educate the world!

Join Eleven Labs as a Forward Deployed Software Engineer, where you'll be at the forefront of technology, working on innovative solutions that drive our clients' success. This role involves collaborating closely with clients to understand their needs and deploying custom software solutions that enhance their operations. Your expertise will play a pivotal role in shaping the future of our software offerings.

Role overview Jobgether is hiring a Freelance DevOps Engineer (Automation Systems) to join its remote team in Spain. This contract role focuses on designing, scaling, and maintaining infrastructure that supports automation workflows in a hybrid AI and human environment. What you will do Build and maintain infrastructure for automation systems, with an emphasis on high availability and reliability. Scale systems to support large volumes of automated processes. Set up and manage monitoring tools to ensure strong system observability. Troubleshoot and resolve issues in high-load environments. Collaborate with AI-driven agents to keep systems stable and fault-tolerant. Who thrives here This contract fits engineers who enjoy solving infrastructure challenges and improving automation at scale. Hands-on experience and a proactive mindset toward system performance and reliability are valued. Location and contract Remote freelance position Must be based in Spain

Welcome to Fever! We are the world’s leading technology platform dedicated to enhancing culture and live entertainment experiences.Our mission is to democratize access to culture and entertainment. Through our innovative technology and analytical approach, we are transforming how audiences connect with live events. Every month, our platform sparks inspiration in over 300 million individuals across more than 40 countries, while simultaneously empowering event creators with the tools and data necessary to innovate and expand their reach.Our achievements speak volumes; we have partnered with industry giants such as Netflix, F.C. Barcelona, and Primavera Sound, and have delivered internationally acclaimed experiences, all supported by prominent global investors.To continue our journey, we are seeking exceptional talent with a proactive mindset to help us shape the future of entertainment!Are you ready to join us?As part of our engineering team, you will contribute to the development and maintenance of our user-friendly iOS and Android applications, as well as our web services, ensuring that more people can enjoy extraordinary experiences.About the RoleLocation: SpainWhat We Are Looking For:We are in search of a Senior Software Engineer who possesses exceptional software development skills, evidenced by a strong record of professional achievements. The ideal candidate values code quality and aims to not only complete tasks efficiently but also execute them correctly.If you are intelligent, energetic, and think of systems with CI/CD pipelines in mind, and you thrive in a dynamic environment, we are aligned!Your First Month at Fever (Onboarding Period):You will participate in a comprehensive onboarding program designed to facilitate a smooth transition.Meet your team and buddy, and immerse yourself in Fever’s culture and operational methods.Set up your local development environment and familiarize yourself with our Python-based tech stack, CI/CD processes, and cloud infrastructure.Gain insights into our architecture and observability tools while contributing small enhancements and fixes.

Hello!We are Fever, a pioneering tech platform dedicated to transforming culture and live entertainment.Our mission is clear: to democratize access to culture and entertainment. Through our advanced technology and data-driven strategies, we are changing the way people experience live events. Every month, our platform captivates over 300 million people across more than 40 countries, while empowering event creators to innovate and expand their reach using our tools and insights.Our achievements speak for themselves—we have collaborated with industry giants such as Netflix, F.C. Barcelona, and Primavera Sound, and have been recognized with international awards. It’s an impressive journey, and we’re just getting started!To further our mission, we are in search of exceptional individuals with a proactive approach who are excited to contribute to the future of entertainment!Are you ready to join us on this journey?Now, let’s delve into the specifics of this role and how you can contribute to Fever’s mission.

Role Overview 10xteam is looking for a freelance Machine Learning Operations Engineer with a focus on AI training. This remote role is open to candidates based in Spain and offers flexible hours, ranging from 8 to 20 per week. What You Will Do Work with a team of experienced professionals to improve and train AI models Contribute to projects that advance artificial intelligence solutions Collaborate remotely on assignments that impact real-world applications Position Details Freelance contract Remote work within Spain 8-20 hours per week, depending on project needs

Join Elastic as a Principal Software Engineer specializing in Networking to innovate and enhance our cutting-edge technology platform. You will play a pivotal role in designing and implementing scalable networking solutions that power our products, ensuring reliability and performance at scale.Your expertise will help shape the future of our technology, collaborating with cross-functional teams to deliver exceptional user experiences. If you are passionate about developing robust networking solutions and thrive in a fast-paced environment, we want to hear from you!

1inch is a pioneering DeFi ecosystem dedicated to creating financial freedom for all. Our innovative products empower users and developers to trade, store, and manage digital assets with the highest security, self-custody, and an intuitive user interface, unlocking the true potential of crypto ownership. Our protocols and APIs serve as the backbone infrastructure for the DeFi industry and beyond.If you are a visionary thinker who thrives in a fast-paced environment and is eager to make a significant impact from day one, we invite you to become a part of our transformative team.Location: We prioritize candidates located in Dubai but will also consider those working remotely from one of our European Hub Locations (UK, Spain, or Germany).We are in search of a Senior Blockchain Engineer who embodies a proactive approach and a fervor for innovation. In this critical role, you will be tasked with designing, developing, and optimizing smart contracts and blockchain infrastructure. We seek a strong problem-solver capable of adapting to the ever-evolving crypto landscape while executing swiftly and upholding high standards of security and quality.Your collaboration with the CPO, product teams, and fellow engineers will be essential in delivering innovative and secure solutions within the DeFi ecosystem. Your dedication to decentralization and open-source development will play a crucial role in positioning us at the forefront of industry trends, helping to build a robust and future-ready platform.Location: For this role, we prefer candidates based in Dubai or working remotely within +/- 4 hours GST time.

Role overview ruby-labs seeks an AI Engineer based in Spain. The position centers on designing, developing, and implementing AI solutions that improve user experiences. Collaboration is a key part of the role, with frequent interaction alongside engineers and data scientists. What you will do Design and build AI systems to address real-world challenges Develop new features and refine existing AI models Work closely with engineers and data scientists to deliver projects Team and environment The team brings together professionals with diverse backgrounds. Innovation and practical solutions are highly valued. Projects evolve quickly, and the environment encourages collaboration at every stage.

Role Overview Talan is hiring a Senior AI-Augmented Functional Engineer to join the team in Santiago, Spain. This position focuses on using artificial intelligence to improve functional engineering processes and deliver greater efficiency across projects. What You Will Do Work with cross-functional teams to spot areas where AI can add value to engineering workflows. Contribute to the creation and refinement of intelligent solutions for real-world engineering challenges. Help ensure engineering tasks run smoothly, with a focus on performance and functionality. Location This role is based in Santiago, Spain. Relocation is required.

Twilio is hiring a Software Engineer to join a remote team based in Spain. This role centers on developing and enhancing products that enable global communication for users and businesses. Role overview As part of Twilio’s engineering group, you will contribute to building software that helps people and organizations connect reliably at scale. The work supports communication for millions of users around the world. What you will do Collaborate with fellow engineers to design and implement scalable software solutions Focus on projects that improve reliability and expand the reach of Twilio's communication products Support ongoing efforts to make connections easier and more dependable for users globally Location This is a remote role open to candidates located in Spain.

We invite you to submit your CV in English, along with your level of English proficiency.Mindrift connects talented professionals with project-based AI opportunities for top technology companies, focusing on the testing, evaluation, and enhancement of AI systems. This is a project-based engagement, not a permanent position.Opportunity OverviewEach project presents unique challenges, and contributors may be involved in tasks such as:Crafting original computational engineering problems that emulate real-world engineering processes;Developing programming challenges using Python to carry out engineering calculations and simulations;Ensuring that problems are computationally demanding and necessitate numerical methods or iterative solutions;Creating scenarios involving system design, optimization, and analysis;Formulating problems based on genuine research challenges or real-world engineering applications;Validating solutions using Python with standard engineering libraries;Clearly documenting problem statements and providing verified correct answers.Candidate ProfileThis role is suitable for engineers with experience in Python, looking for part-time, non-permanent project work. Ideal candidates will possess:A degree in Electrical Engineering or related disciplines;Proficiency in Python for numerical validation. Familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or any programming language is acceptable;At least 2 years of professional experience, including applied, research, or teaching roles;A solid understanding of practical engineering limitations and approximations;Excellent written English skills (C1 or higher);Professional certifications (e.g., CMME, SAS Certifications, CAP) and experience with international or applied projects is a plus.Application ProcessApply → Pass qualifications → Join a project → Complete tasks → Get compensatedProject Time CommitmentTasks for this project are estimated to require approximately 10-20 hours per week during active phases, depending on project demands. This is an estimate and not a guaranteed workload.CompensationParticipants can earn up to $31 per hour, based on their experience and contribution pace. Compensation varies across different projects based on scope, complexity, and required expertise. Please note that other projects on the platform may offer different compensation levels based on their specific requirements.

Jobgether is hiring a Senior Software Engineer focused on DevOps with Azure. This position is based in Spain and centers on building and maintaining cloud infrastructure and CI/CD pipelines using Azure technologies. What you will do Design, implement, and support scalable cloud solutions on Azure. Develop and manage CI/CD pipelines to streamline software delivery. Work closely with teams across the company to improve deployment processes. Help maintain high availability and strong performance in production systems. Who we’re looking for Experience with Azure cloud services and DevOps practices. Comfort working with cross-functional teams. Interest in improving software delivery and infrastructure reliability. Enjoys solving problems in a changing environment.