250,055+ Remote Fullstack Dev Java Angular Ai Tools Jobs in Spain — Top Companies Hiring June 2026

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Remote SEO & Marketing Specialist: AI‑Powered Content

Persona is seeking a SEO & Marketing Specialist to support various marketing initiatives, including content creation, SEO, and email campaigns. This role is ideal for a skilled writer with a solid understanding of SEO and a comfort level with AI tools. The specialist will help with content optimization ...

Remote Spanish English AI Data Annotation Analyst

iMerit Scholars busca un Gen AI Data Annotation Analyst en España. Su responsabilidad será desarrollar conjuntos de datos de alta calidad para modelos de lenguaje. Se requiere habilidad en etiquetado de datos en texto, imagen y video, así como la capacidad de redactar contenido en español e inglés. Ofr ...

Remote Environmental Management Scientist for AI Training

Alignerr is seeking experienced environmental management professionals for a fully remote, flexible contract role. You will shape the next generation of AI by using your expertise in sustainability and land-use planning. This role allows you the autonomy to work on your schedule while making an impact in AI d ...

Lead Flutter & AI Mobile Architect (Remote Spain)

LABHOUSE is seeking an experienced Lead Mobile Developer to steer the development team in building innovative mobile applications. You will manage the entire product lifecycle, incorporating AI integration and collaborating with cross-functional teams. A strong background in Flutter and Dart is essential, alo ...

Remote Threat Intelligence Analyst for AI Training

Alignerr is seeking a Threat Intelligence Analyst (AI Training) to analyze and classify threat reports. The ideal candidate will bring 2+ years of experience in threat intelligence or SOC analysis. The role is fully remote with a commitment of 10-40 hours per week. You'll work closely with leading AI r ...

Remote Biology Olympiad Problem Architect & AI Evaluator

A leading educational organization in Spain is seeking an expert to write advanced Olympiad style biology problems to challenge AI models. The ideal candidate will have a master’s or PhD in biology or equivalent experience, strong proficiency in LaTeX, and a deep understanding of biological concepts. Responsibil ...

Remote Clinical Psychologist for AI Training & Assessment

A leading psychological research organization in Spain is seeking a clinical psychologist to analyze and annotate clinical interactions for AI training and evaluation. Responsibilities include providing expert feedback on psychotherapy datasets, developing scenarios for psychological testing, and ensuring compli ...

Latvian AI Training Voice Actor — Remote Freelance

A leading AI company is seeking a Senior Latvian Voice Actor for a freelance project to contribute to AI training data. Responsibilities include recording scripted materials, assessing AI-generated outputs, and providing expert feedback. This remote role requires demonstrated experience in voice acting and a hig ...

Icelandic Voice Actor for AI Training — Remote

A leading tech company is seeking an experienced Icelandic Voice Actor for a freelance AI Trainer project. This role involves recording scripted material, evaluating AI outputs, and providing feedback to enhance Icelandic voice models. Candidates should have a background in voice acting and a high-quality record ...

Remote Romanian Voice Actor for AI Training

A dynamic AI technology company is looking for a skilled Romanian Voice Actor to join their team as a freelance AI Trainer. In this remote position, you will record scripted material, evaluate AI outputs, and provide feedback to enhance the quality of voice models. Ideal candidates should have professional voice ...

Remote Spanish AI Trainer (LatAm) – Entry Level

A technology company is looking for a Spanish Language Specialist (Latin America) to engage with AI models. The role involves verifying linguistic accuracies and documenting errors, suited for those with a background in Spanish language or linguistics. Offers a flexible pay range of $6 to $65 per hour. Ideal for ...

Senior QA Engineer — AI‑First SaaS (Remote)

A leading AI startup is seeking a Senior QA to build the QA function from the ground up. This role involves establishing practices for an AI-first SaaS platform, ensuring reliability at scale, and championing user empathy throughout the process. With a remote-first culture and a high-performing team, this positi ...

Junior Backend Engineer – Remote (Fraud Detection AI)

Una empresa de software de IA busca un Backend Developer para trabajar en el desarrollo de su aplicación de detección de fraude en medios de pago. Esta posición es completamente remota y requiere que los candidatos residan en España. Las responsabilidades incluyen el diseño y desarrollo de módulos de la aplicaci ...

Senior Go Engineer – AI, Product Driven, Remote

A travel innovation company is seeking a Senior Software Engineer to design scalable backend systems for their AI automation platform. The role involves collaborating directly with customers, driving product decisions, and ensuring that engineering excellence meets user needs. Candidates should have over 5 years ...

Remote Japanese AI Annotator & Trainer (Part Time)

A global online task provider is looking for an annotator in Spain to review and label Japanese-language content. You will classify data, identify inaccuracies, and contribute to AI project quality. Qualifications include a Bachelor's degree and experience, with requirement of proficiency in Japanese and advance ...

Remote Physics Research Consultant: AI Problem Design

A leading education technology firm in Spain is seeking an expert to create original advanced physics problems and evaluate AI-generated solutions. The ideal candidate should hold a Master’s or PhD in physics or have equivalent experience in competitive physics. Strong LaTeX skills and a deep understanding of ph ...

Data Platform Engineering Manager (Remote, AI First)

Yuno is looking for an experienced Engineering Manager to lead their data engineering team. This remote role involves managing and growing a team responsible for processing billions of payment events worldwide. The ideal candidate will have a strong technical background, experience in leading data teams, and a p ...

Remote QA Engineer — AI‑Driven Testing & Growth

A leading SaaS platform provider in Spain is seeking a skilled QA Engineer to enhance software quality across their products. You will define and execute test plans, perform manual and automated testing, and collaborate with cross-functional teams to ensure exceptional product standards. The ideal candidate has ...

Remote Medical AI Trainer & Consultant (Part Time)

Get notified about new Pediatra jobs in Spain . Positions open for Fetal medicine research fellows to join a research line based on the development of an experimental model of artificial placenta. Barcelona, Catalonia, Spain 10 months ago Bilbao, Basque Country, Spain 2 ...

Voice AI Engineer — Real Time, Scalable, Remote

Tucuvi is the global leader in clinical Conversational AI in healthcare .Our mission is to enable efficient and effective care for all, starting with AI-led phone consultations that augment care teams' capacity . Our safe and medical-grade AI autonomously conducts low-ris ...

Software Developer for Training AI Data Remote

Software Developer for Training AI Data — Remote Immediate opportunity – Tool Use Sprint starting this week! We have a major project launching THIS WEEK with opportunities for 1000+ developers. The initial Tool Use sprint will run for 10 days, focusing on training AI models to use tools and APIs ...

Remote Bengali Coding Specialist AI Trainer (Freelance)

Are you a coding expert fluent in Bengali eager to shape the future of AI? Large-scale language models are evolving from clever chatbots into powerful engines of scientific discovery. With high-quality training data, tomorrow’s AI can democratize world-class education, keep pace with cutting-edge research, an ...

AI Powered GTM Lead Gen Architect (Remote)

Synmatch AI is looking for a GTM Data Specialist to revolutionize B2B lead generation using AI and automation. This role involves building and optimizing lead generation systems in a fully remote environment. The ideal candidate will possess experience with advanced lead generation tools like Clay and TexAu, and ...

Remote Network & Infrastructure Security Analyst (AI Systems)

A leading security consultancy in Spain seeks a Network & Infrastructure Security Analyst to analyze and evaluate enterprise security scenarios. The role involves reviewing firewall and endpoint security, classifying incidents, and creating security training datasets. Ideal candidates have over 2 years of experi ...

Remote Incident Response Analyst AI Security Ops

A leading AI firm is seeking an Incident Response Analyst to examine security events and manage incident cases. You will leverage your experience in SOC and security operations to ensure AI-generated analysis aligns with real-world scenarios. This position offers competitive pay, flexible remote work, and the ch ...

Remote Cloud Security Analyst AI Systems Insight

A leading technology firm is seeking a Cloud Security Analyst to analyze risks in cloud environments like AWS, GCP, and Azure. The ideal candidate should have over 2 years of experience in cloud security, with a strong understanding of IAM, networking, storage, and container security. This role offers competitiv ...

Data & AI Generalist — Remote, Flexible PTO + Equity

A leading financial tech company based in Spain is seeking a Data & AI Generalist to ensure data quality and audit traceability across their platform. This role involves a mix of data engineering and analytics, with responsibilities spanning SQL query writing, data validation, and AI tool development. Ideal cand ...

Remote Hindi Voice Acting & AI Training Specialist

A leading AI technology company is seeking a Hindi Voice Acting Specialist to enhance AI training data. This remote contract role requires fluency in Hindi and experience in voice acting. Responsibilities include recording material, evaluating AI outputs, and providing feedback on pronunciation. Candidates must ...

Remote Pashto Language Specialist for AI Training

A leading AI training company seeks a Pashto Language Specialist - AI Trainer to enhance AI models with your linguistic expertise. This remote contract position demands proficiency in phonetics, morphology, syntax, and cultural nuances. You’ll be responsible for verifying accuracy in AI responses and documenting ...

Remote Mandarin Voice Artist & AI Training Specialist

A leading voice acting company is seeking a Mandarin Chinese Voice Acting Specialist – AI Trainer. This remote contract role involves recording and evaluating Mandarin speech samples to enhance AI voice models. Candidates should be fluent in Mandarin and have experience in voice acting. A quality recording setup ...

Senior Product Designer — AI SaaS (Remote Europe)

A forward-thinking tech company is seeking a Senior Product Designer to shape UX for their AI-powered platform. This role emphasizes collaboration, innovation, and creating intuitive interfaces. Candidates should have over 4 years of design experience, a strong portfolio, and expertise in tools like Figma. The p ...

Social Media Creative Designer — Remote & AI‑Driven

A mental health care organization is looking for a Creative & Social Media Designer to join their fully remote team. This entry-level role requires designing impactful visuals for social media and paid ads. The ideal candidate should possess strong design skills, a keen eye for trends, and be proficient in tools ...

Backend AI Agent Architect (LangChain/LangGraph) Remote

An international technology company is seeking an experienced Backend Developer with expertise in LangChain and LangGraph. The role involves designing AI Agents and optimizing backend functionalities in a fully remote environment. Ideal candidates should have a strong background in backend architecture and a pas ...

Creative Lead, Growth & AI Driven Campaigns (Remote)

A leading consultancy firm based in Spain seeks a Mid-Senior Creative Marketing Specialist to manage and optimize their creative processes. This role requires over 4 years of experience in performance marketing and requires proficiency in TikTok and Meta. The ideal candidate will collaborate with a dynamic team ...

Remote AI Coding Trainer — Fluent in Italian

A leading AI training company is seeking a Coding Specialist - AI Trainer fluent in Italian. This remote role involves interacting with advanced AI systems on software engineering tasks and ensuring the accuracy of coding and language. Ideal candidates will have a strong technical background, coding experience, ...

Remote Full Stack & AI Product Builder (Volunteer)

Overview I’m looking for motivated volunteers—frontend and backend developers, AI enthusiasts, designers, or anyone passionate about building innovative products. Join us to gain experience, collaborate, and help shape the future of AI-powered productivity. Roles Frontend Deve ...

Lead React Engineer – AI Web Apps (Remote)

A global technology solutions provider is seeking a Mid-Senior level engineer to develop secure, scalable enterprise applications. Candidates should have experience in building web-based technology products, a strong understanding of algorithms, and excellent communication skills in English. The role offers a fu ...

Remote Senior AI/ML Engineer — LLMs & Multimodal

A leading IT outsourcing firm is looking for a Senior AI/ML Engineer to lead initiatives in fine-tuning large-scale AI models and build distributed AI architectures. The role is fully remote with some in-person sessions in Prague. Key qualifications include advanced skills in Python, deep learning, and experienc ...

Remote NLP Data Annotator for AI Training

A global consulting firm is seeking a detail-oriented NLP Data Annotator to enhance Natural Language Processing systems. This remote role involves labeling and classifying text and speech data, ensuring high accuracy and consistency while meeting productivity targets. Candidates should have a Bachelor’s degree i ...

Remote Czech Voice Actor for AI Training

A leading AI technology company is seeking a skilled Czech Voice Actor for a freelance project. The role involves recording scripted material, evaluating AI outputs for accuracy, and offering feedback on various aspects of voice performance. A strong background in voice acting with a reliable recording setup is ...

Senior AI Research Engineer, Model Inference (Remote)

Senior AI Research Engineer, Model Inference (Remote) Join to apply for the Senior AI Research Engineer, Model Inference (Remote) role at Tether.io Join Tether and Shape the Future of Digital Finance At Tether, we’re not just building products, we’re pioneer ...

Remote AppSec Engineer — AI Driven SaaS Security

A global leader in enterprise orchestration is seeking a highly accomplished Security Engineer - AppSec to work remotely, ideally from Spain. The role focuses on embedding security in the software development lifecycle and requires strong experience in cybersecurity and software engineering. Ideal candidates wil ...

Senior Software Engineer – Remote AI & Cloud Native

A global learning company is seeking an Advanced Specialist Software Engineer to drive the technical direction of high-impact projects. In this role located in Spain, you will design complex software solutions and mentor team members on best practices. The ideal candidate has over 6 years of experience in softwa ...

Remote Medical Science Liaison — AI Training Expert

Alignerr is seeking a Medical Science Liaison to evaluate and improve AI systems trained on biomedical content. This fully remote role allows you to work on your own schedule while making a significant impact on AI's understanding of clinical data. The ideal candidate should have a background in medica ...

Remote AI Software Engineer (Contract) Prompt & Benchmark

Call For Referral is seeking a part-time remote software engineer to engage in high-impact AI research. The role involves reviewing and refining AI-generated content, validating algorithms, and providing structured feedback. Ideal candidates have over 2 years of experience in software engineering or te ...

Remote NestJS Backend Engineer TypeScript & AI ready

Kubide, ubicada en España, está buscando un Backend Developer para unirse a su equipo. La empresa se especializa en desarrollo web y ofrece un ambiente de trabajo altamente colaborativo. Se requiere un perfil con 2-3 años de experiencia en desarrollo backend, así como conocimientos en TypeScript y NestJS. </p ...

Remote Chemistry Scientist for AI Problem Solving

Alignerr is seeking Chemistry Specialists (Masters and PhD holders) to design and solve advanced chemistry problems for AI training. This is a fully remote role meant for researchers, postdocs, and industry chemists. Applicants will work independently on real-world issues, ensuring scientific clarity and deep ...

Remote AI Engineering Researcher — Validate & Shape Models

GradBay is looking for Engineering PhD Researchers and Industry Experts to contribute to AI development by evaluating advanced models. Ideal candidates include PhD students and professionals from various engineering disciplines. This role is fully remote and allows for flexible working hours, accommoda ...

Senior ML Engineer: AI Reasoning & Training (Remote)

Alignerr is seeking a Senior Machine Learning Engineer to work remotely on cutting-edge AI projects. You'll author high-fidelity reasoning traces that enhance LLM capabilities and mentor others on quality assurance. The ideal candidate will deeply understand model behavior, capable of structuring compl ...

Agentic AI Full Stack Engineer — Remote (EU)

Digital Waffle is seeking a Full Stack Engineer (Agentic AI) for a remote position based in Spain. You will be a core engineer building end-to-end agentic products, designing architecture and managing infrastructure in a dynamic environment. The ideal candidate has 4-7 years of experience with a full-s ...

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