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Qualifications:Fluent in written English with advanced professional proficiency3 to 7 years of experience in software engineeringExpertise in Python and JavaScript/TypeScript; familiarity with Java, C#, or Go is a plusExperience in backend or full-stack development within production environmentsKnowledge of testing frameworks such as pytest, Jest, JUnit, xUnit, or Go testingProficient in debugging and navigating extensive multi-file codebasesExperienced in conducting code reviews, refactoring, and managing production migrations
About the job
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.
About Anyone AI
Anyone AI is dedicated to pushing the boundaries of artificial intelligence, offering a collaborative environment where innovation thrives. Work with top-tier professionals and engage in projects that make an impact.
Role overview Anyone AI seeks experienced software engineers to serve as AI Software Engineering Trainers. This is a remote, part-time consulting position for candidates based in Spain. Trainers collaborate with a prominent AI laboratory, shaping authentic engineering tasks and evaluating solutions for technical quality and depth. What you will do Create and…
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.
We invite you to submit your CV in English and specify your English proficiency level.Mindrift connects talented professionals with project-based opportunities in AI for top tech companies, with a focus on testing, evaluating, and enhancing AI systems. Please note that this is a project-based role rather than a permanent position.Role Overview:While each project presents distinct challenges, contributors may be tasked with:Crafting original computational physics challenges that emulate genuine physics research workflows;Developing problems that necessitate Python programming for solutions (utilizing libraries such as Numpy, SciPy, Sympy);Ensuring that the problems are computationally intensive and cannot be manually resolved within a reasonable time frame (days/weeks);Creating problems that require complex reasoning in areas such as mechanics, electromagnetism, thermodynamics, and quantum mechanics;Formulating challenges based on authentic research issues or practical applications in physics;Validating solutions using Python with standard physics simulation libraries;Providing comprehensive documentation for problem statements along with verified correct answers.Qualifications:This opportunity is ideal for optical engineers with Python experience who are open to part-time, non-permanent projects. Preferred qualifications include:A degree in Physics (Theoretical, Experimental, or Computational) or related disciplines;Proficiency in Python for numerical validation. Familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, domain-specific libraries, Stata, or knowledge of any programming language can be regarded as equivalent;At least 2 years of professional experience, which may include applied, research, or teaching roles;Experience in numerical simulation methods;Capability to design problems that reflect real-world physics research workflows;Innovative thinking in problem design across various physics sectors;Understanding of physics modeling and approximation techniques;Strong written English skills (C1+).Application Process:Apply → Complete qualifications → Join a project → Execute tasks → Receive payment.Project Commitment:For this project, tasks are estimated to demand approximately 10–20 hours per week during active phases, depending on project needs. This is an estimate and not a guaranteed workload, applicable only while the project is in progress.Compensation:Contributors can earn up to $29 per hour, based on their contribution level and pace. Compensation may differ across projects according to scope, complexity, and required expertise. Be aware that other projects on the platform may present varying earning levels based on their requirements.
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
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!
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.
Mindrift seeks a Freelance AI Workflow Engineer to join the Tendem project as an AI Pilot. This part-time, remote role centers on building automation systems powered by Large Language Models (LLMs) in collaboration with Tendem Agents, who manage repetitive tasks. The focus is on prompt engineering, workflow design, and maintaining quality throughout each solution. Key Responsibilities Design and evaluate workflows using LLM APIs such as OpenAI, Claude, Gemini, or similar tools. Build and refine automation systems for tasks like content creation, enrichment, and communication. Develop and iterate on prompt frameworks to ensure consistent, high-quality workflow outputs. Create automated outreach systems, including email and messaging flows, and oversee lead enrichment processes. Organize and preprocess data to support stable model performance and reliable results. Review and optimize AI-driven pipelines for scalability, efficiency, and accuracy. Role Fit This freelance position suits professionals experienced in LLM integrations, prompt design, and AI automation. The part-time, remote structure offers flexibility for those with relevant expertise. Location Remote , València, Valencian Community, Spain
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
Join our dynamic team at alan as a Fullstack Software Engineer (x/f/m). In this exciting role, you will have the opportunity to work remotely from anywhere in Spain, contributing to innovative projects that drive our mission forward. You will be responsible for both frontend and backend development, collaborating with cross-functional teams to deliver high-quality software solutions.
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.
Join our dynamic team of mobile software engineers at 360learning, where we are dedicated to building cutting-edge mobile solutions. Our team, consisting of 9 mobile engineers, an Engineering Manager, and a Project Manager, is focused on creating two native mobile applications utilizing a state-of-the-art tech stack that includes Kotlin Multiplatform, Jetpack Compose, and SwiftUI. We pride ourselves on an extensive CI setup using Bitrise, along with custom applications and internal development tools.We are currently seeking a Junior Android Developer with 0.5 to 2 years of experience who is eager to learn the Kotlin Multiplatform tech stack in the short term and iOS development in the mid to long term. As an integral part of our R&D department, which boasts over 80 engineers, our mobile team plays a crucial role in delivering an engaging learning experience for our users on mobile platforms.Your journey with us will involve:- Addressing complex technical challenges: Engage with a sophisticated codebase that requires strong analytical and modeling skills. Our platform serves 2.3 million registered users, emphasizing our commitment to code quality through modular architecture, systematic peer reviews, and automated testing for each pull request.- Utilizing an attractive technical stack: Our mobile team has fully embraced Kotlin Multiplatform since its inception in 2020, with 80% of our codebase migrated. The Android side is enhanced with Kotlin and Jetpack Compose, while our iOS applications leverage Swift and SwiftUI.- Thriving within a progressive R&D environment: Our decentralized peer review process ensures that team members receive constructive feedback regularly. Our team of highly skilled engineers fosters a culture of pair programming and knowledge sharing.
Grafana Labs is a pioneering, remote-first company known for its open-source innovation. With over 20 million users worldwide utilizing Grafana, our acclaimed visualization tool tracks everything from environmental changes to vital medical devices. Our dashboards are iconic, having been featured at events ranging from NASA launches to the Tour de France. We empower over 3,000 organizations, including industry giants like Bloomberg, JPMorgan Chase, and eBay, to navigate their observability strategies through our Grafana LGTM Stack, which can be fully managed with Grafana Cloud or self-managed with the Grafana Enterprise Stack, both offering scalable metrics (Grafana Mimir), logs (Grafana Loki), and traces (Grafana Tempo).As we experience rapid growth, we remain committed to our core values: a robust open-source foundation, a collaborative global culture, and a dedication to impactful work. Our team excels in an environment driven by innovation, where transparency, autonomy, and trust are paramount.If you find this role intriguing, don't hesitate to apply, even if you don't meet every single requirement. This could be a pivotal moment in your career.Senior Backend Engineer - AlertingThis is a remote opportunity, and we welcome applications from Spain.The Opportunity:The Grafana Alerting team plays a vital role in the Grafana open-source project (link), dedicated to delivering comprehensive alert management solutions. Our backend team collaborates closely with clients and Grafana Cloud teams to ensure alerting operates seamlessly, whether on-premises or in the cloud.Our work encompasses a wide array of projects, including:Developing distributed systems to enhance the ingestion and delivery of Prometheus-based alerts.Standardizing alert setup and delivery for both Grafana and Prometheus-based alerts.Building distributed systems to efficiently evaluate Grafana-managed alerts, achieving over 500 evaluations per second in production.Grafana Alerting is trusted by leading organizations worldwide, safeguarding crucial medical apparatus and critical infrastructure. We thrive...
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.
Please submit your CV in English and include your English proficiency level. toloka-ai, in partnership with Mindrift, connects material science experts to project-based AI work for major technology companies. These freelance roles involve testing, evaluating, and improving AI systems. All work is project-based and does not constitute permanent employment. Key Responsibilities Design original materials engineering problems that mirror real-world engineering workflows Create challenges that require Python programming for calculations or simulations Develop computationally intensive tasks using numerical methods or iterative approaches Formulate problems centered on system design, optimization, and analysis Incorporate real research questions or practical engineering scenarios into problem sets Validate solutions with Python and recognized engineering libraries Document problem statements clearly and provide verified solutions Requirements Degree in Material Science or a closely related field Strong Python skills for numerical validation (experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar libraries is a plus) Minimum 2 years of professional experience, ideally in applied research or teaching Solid grasp of engineering constraints and practical approximations Excellent written English (C1 level or above) How Projects Work Submit an application Meet the required qualifications Join a project Complete assigned tasks Receive compensation Time Commitment During active project phases, tasks typically require 10 to 20 hours per week. Workload may fluctuate based on project needs. Compensation Contributors can earn up to $29 per hour, depending on project complexity, expertise, and individual pace. Rates may vary between projects on the platform. Location: Remote , València, Valencian Community, Spain
Role Overview Teleperformance Spain is hiring a Spanish Biotechnical Presales Consultant to support laboratories and clients across the biotechnology sector. This remote position is based in Spain, with a focus on building strong customer relationships and supporting the sales process from start to finish. Main Responsibilities Identify new business opportunities within the targeted biotechnology market. Grow and maintain the current customer base by providing attentive service. Support customers throughout the sales cycle to ensure their satisfaction. Look for cross-selling and up-selling possibilities with existing clients. Assist the on-site team by handling inbound inquiries when required.
