158,333+ Remote Fullstack Dev Python React Ai Jobs in Spain — Top Companies Hiring June 2026

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Software Engineer Annotator

Job Title:Usted podría ser el solicitante perfecto para este trabajo. Lea toda la información asociada y asegúrese de presentar su candidatura.Software Engineer Annotator (remote)Location:Remote (world-wide)Job SummaryWe are seeking an experienced Software Engineer Annotator r ...

Software Engineer Annotator

Job Title:Usted podría ser el solicitante perfecto para este trabajo. Lea toda la información asociada y asegúrese de presentar su candidatura.Software Engineer Annotator (remote)Location:Remote (world-wide)Job SummaryWe are seeking an experienced Software Engineer Annotator r ...

Software Engineer Annotator

Job Title:Usted podría ser el solicitante perfecto para este trabajo. Lea toda la información asociada y asegúrese de presentar su candidatura.Software Engineer Annotator (remote)Location:Remote (world-wide)Job SummaryWe are seeking an experienced Software Engineer Annotator r ...

Software Engineer Annotator

Job Title:Usted podría ser el solicitante perfecto para este trabajo. Lea toda la información asociada y asegúrese de presentar su candidatura.Software Engineer Annotator (remote)Location:Remote (world-wide)Job SummaryWe are seeking an experienced Software Engineer Annotator r ...

Software Engineer Annotator

Job Title:Usted podría ser el solicitante perfecto para este trabajo. Lea toda la información asociada y asegúrese de presentar su candidatura.Software Engineer Annotator (remote)Location:Remote (world-wide)Job SummaryWe are seeking an experienced Software Engineer Annotator r ...

Software Engineer Annotator

Job Title:Usted podría ser el solicitante perfecto para este trabajo. Lea toda la información asociada y asegúrese de presentar su candidatura.Software Engineer Annotator (remote)Location:Remote (world-wide)Job SummaryWe are seeking an experienced Software Engineer Annotator r ...

Freelance Machine Learning Developer (Python)

This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency.¿Quiere enviar su solicitud? Lea toda la información sobre este puesto a continuación y lu ...

Freelance Machine Learning Developer (Python)

This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency.¿Quiere enviar su solicitud? Lea toda la información sobre este puesto a continuación y lu ...

Freelance Machine Learning Research Engineer (Python)

This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency.¿Quiere enviar su solicitud? Lea toda la información sobre este puesto a continuación y lu ...

Analista / Desarrollador/a Fullstack almería

Oportunidad de trabajo Estamos buscando un/a Analista / Desarrollador/a Fullstack para incorporarse a un proyecto de desarrollo activo en entorno competitivo. La persona seleccionada participará en el diseño, análisis y desarrollo de soluciones fullstack, trabajando en microservicios, servi ...

Enterprise Artificial Intelligence Architect

We're looking for an Enterprise Artificial Intelligence Architect to join our team in Barcelona, Spain, in a remote working mode. The Enterprise Artificial Intelligence Architect will play a key role in enabling AI product development across multiple cloud platforms, including AWS, Google C ...

Barcelona Lead Full Stack Engineer — Founding Role (Hybrid)

We are looking for the very Top Talent...And we would be delighted if you were to join our team! More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35.000 employees all over the world and presence in more than 35 ...

Banca Full Stack Engineer (Barcelona)

Banca Full Stack Engineer (Barcelona) – Juryo Responsibilities: Develop web applications using React, JavaScript/TypeScript and other modern front‑end technologies. Build and maintain RESTful APIs with Python frameworks. Implement API‑centric architecture ...

Software Engineer (Madrid)

Skills and Competencies 2–3+ years of experience in web software development with a good understanding of the full web development life cycle Hands‑on experience with Python or TypeScript and familiarity with frameworks such as FastAPI or Node.js Experience working with rela ...

Full stack Engineer Annotator

Full Stack Engineer Annotator Job Summary The Full Stack Engineer Annotator will assess frontend and backend engineering datasets, ensuring AI models correctly interpret full-stack workflows, architecture, and implementation patterns. Job Responsibilities Annotate ...

Senior Fullstack Developer (Vitoria Gasteiz)

Rol Buscamos un perfil Fullstack con más de 3 años de experiencia en Java (Spring Boot) y React, con una comunicación fluida, mentalidad ágil y que comparta nuestra inquietud por integrar herramientas y frameworks de Inteligencia Artificial en su día a día. Te integrarás en un equipo dinámico part ...

Senior Product Engineer

At Leadtech, we've been redefining digital businesses since 2009, creating innovative online solutions that reach millions of users every month. With a diverse team of over 700 members from 23+ nationalities, we're united by a passion for creativity and collaboration. We specialize in delivering user‑centr ...

Senior Developer Advocate — Remote Content & AI Tech Leader

A leading tech company in Spain is seeking a creative individual to develop engaging technical content across various platforms. You’ll combine writing, visuals, and video production to connect with a global audience. The ideal candidate has a strong technical background, is comfortable working independently, an ...

Remote Data Scientist / AI Engineer — ML, MLOps, Cloud

Una empresa líder en IT busca un Data Scientist / IA Engineer para su unidad de Data & Analytics. El candidato ideal tiene más de 3 años de experiencia y conocimientos técnicos avanzados en Python, MLOps y aprendizaje automático. Ofrecemos un entorno de trabajo 100% remoto, estabilidad laboral con contrato indef ...

Remote ESL Tutor for AI Training (EN/ES)

A leading AI training firm is looking for an ESL Tutor to evaluate and enhance AI chatbots' conversations in both English and Spanish. This remote, flexible position offers hourly pay starting at $30+ USD, depending on project complexity and quality. Candidates should be detail-oriented and possess excellent wri ...

Remote Road Inspector & Civil Engineer for AI Training

A professional services firm is seeking a freelance Road Inspector/Civil Engineer to assist in training AI models in pavement engineering. The role requires reviewing AI outputs related to roadway conditions and providing feedback based on your field experience. No prior AI background is needed, but practical ex ...

Senior Japanese Voice Actor for AI Training (Remote)

A leading AI training company is seeking a Japanese Voice Actor for a freelance project. You will record scripted material, assess AI outputs, and help refine voice design. Candidates must have professional voice acting experience and a high-quality recording setup. This is a remote, senior-level position with a ...

Remote Technical Account Manager AI AdTech for Growth

RTB House is seeking a Technical Account Manager to join their team in Spain. The role involves conducting technical operations for clients, coordinating technical issues during online campaign launches, and monitoring campaign effectiveness. Candidates should have 2+ years in tech support, strong analytical ski ...

Remote AI Project Lead — End to End Delivery

Lumibit in Spain is seeking a Senior AI Project Manager to oversee complex AI and data-driven projects in the automotive and mobility industry. The ideal candidate has over 5 years of experience, strong project management skills, and excellent German and English communication abilities. You will bridge managemen ...

Remote Finance Engineer: AI Driven Strategy & FP&A

A leading travel fintech company is looking for a Finance Engineer in Spain to build automated reporting systems and model financial strategies using AI tools. The role requires a strong analytical mindset and 5-7 years of experience in a tech environment. Candidates must have a degree in a quantitative discipli ...

Remote AI Tech Lead for Fintech & Legaltech Solutions

A technology firm is seeking a visionary Technical Lead with deep expertise in Artificial Intelligence to spearhead AI initiatives within the Financial and Legaltech sectors. You will lead a team of AI engineers, design robust architectures, and ensure compliance with regulatory standards. The ideal candidate ha ...

Senior Russian Voice Actor for AI Training (Remote)

A leading AI technology company is seeking a Russian Voice Actor for a freelance AI Trainer project. This role involves recording scripted material, evaluating AI outputs, and providing linguistic feedback to enhance Russian voice models. Candidates should have professional voice acting experience, clear communi ...

Remote Personal Financial Advisor for AI Research (Contract)

A leading staffing agency is looking for experienced Personal Financial Advisors to contribute domain expertise to an AI research initiative. This fully remote position involves diagnosing real-world financial scenarios and developing structured tasks to improve financial reasoning systems. Candidates should hav ...

Senior Full Stack Engineer (Remote) — AI Driven Platform

A tech company specializing in AI marketing is seeking a Senior Software Engineer who will engage in full-stack development across backend APIs and frontend applications. The ideal candidate will have extensive experience with TypeScript and Node.js, working in a lean, autonomous team. Responsibilities include i ...

Remote Contract: Application Security Analyst for AI Risk

A leading technology firm is seeking an Application Security Analyst to assess and remediate software security risks. You will evaluate vulnerabilities across applications and help create security datasets for AI training. The ideal candidate has over 2 years of security experience and a strong understanding of ...

Remote IAM Analyst: Identity & Access Security for AI

A progressive tech company is seeking an Identity & Access Management Analyst to address modern security challenges. You will analyze IAM and access control scenarios while identifying weaknesses. The role requires 2+ years of relevant experience with IAM and a strong understanding of identity failures. The posi ...

Remote AI Language Trainer (Spain) — Spanish Linguistics Expert

A leading AI training firm is seeking a Spanish Language Specialist to contribute expertise in shaping AI. Responsibilities include interacting with language models, verifying linguistic accuracy, and documenting errors. Candidates should hold a Master’s or PhD in Spanish linguistics and possess strong communica ...

Principal Cloud Engineer — Remote AI Driven Cloud Architect

A technology solutions company is seeking a Principal Cloud Engineer to lead the design and evolution of cloud-native platforms. This role requires strong Azure expertise and over 8 years of platform engineering experience. You will work on innovative AI projects and collaborate with multidisciplinary teams. Ben ...

Remote Maltese Voice Actor for AI Training (Senior)

A leading AI training organization is seeking a Maltese Voice Actor for a freelance project. This remote role involves recording scripted material and providing evaluations of AI-generated speech outputs. Ideal candidates should have professional voice acting experience in Maltese and a solid recording setup. Th ...

Remote Spanish Localization QA Translator for AI Training

Localizationacademy is seeking an English Spanish Translator for a remote position in Spain. The role involves reviewing AI-generated content, providing feedback, and ensuring localization quality across projects. Qualified candidates will have a Bachelor’s degree in related fields, native or near-nati ...

Remote AI Agent Developer — GenAI & LLM for Banking

IRIUM busca un/a AI Agent Developer con inglés alto para desarrollar e integrar agentes de IA basados en LLM para mejorar procesos bancarios y flujos de trabajo. Se requiere una licenciatura en Informática o Ingeniería, sólidos conocimientos de Python y experiencia en creación de APIs. Ofrecemos contrato indefin ...

Senior Arabic Voice Actor for AI Training (Remote)

A leading AI training company seeks a skilled Arabic Voice Actor to contribute to shaping the next generation of AI. In this remote freelance role, you will record scripts, evaluate AI outputs for accuracy, and refine voice models. Ideal candidates will have a background in voice acting and strong communication ...

Senior Portuguese Voice Actor for AI Training (Remote)

A leading AI technology company is seeking a skilled Portuguese Voice Actor for a freelance AI Trainer project. Your role involves recording scripted materials, assessing AI outputs, and providing feedback to improve voice models. Candidates must possess experience in voice acting or related fields, along with a ...

Korean Language AI Trainer — Remote, Entry Level Specialist

A technology firm is seeking a Korean Language Specialist to enhance AI models. This remote contract role requires expertise in Korean grammar and linguistics, with responsibilities including conversing with AI and documenting errors. Ideal candidates hold degrees in relevant fields and may have teaching or ling ...

Remote Voice Actor for AI Training Freelance Project

A leading AI technology company in Spain seeks an experienced Voice Actor for a Freelance AI Trainer Project. You will record material and assess AI outputs, improving voice models through your expertise. Ideal candidates will have a professional background in voice acting along with excellent communication skil ...

Remote Senior Search Engineer — NLP, ML & Scalable AI

A leading life sciences technology company is seeking an experienced professional to build scalable search applications. This role involves working with machine learning and AI services, tackling NLP tasks, and mentoring junior team members. Candidates should have over 7 years of experience, expert-level Python ...

Remote Head of Engineering, Europe — AI First Leader

A leading digital technology company is seeking a Head of Engineering to lead and scale a high-performing engineering organization across Europe. This role includes overseeing backend and frontend development, mentoring teams, and driving innovation through an AI-first engineering culture. Ideal candidates will ...

Remote Data Platforms Product Owner — Data, AI & Governance

Nuvolar Works is seeking a Technical Product Owner to join their remote team. In this role, you will own the product roadmap and collaborate with cross-functional teams to drive data-driven decisions in healthcare technology. We are looking for candidates with 3+ years of experience in product ownershi ...

Remote Senior Mechanical Engineer — Part Time AI Design

A leading AI firm is seeking experienced Senior and Principal Mechanical Engineers for a flexible remote role. Responsibilities include training AI on mechanical design tasks, and refining AI-generated work related to design analysis and manufacturing processes. The position requires 5+ years of experience in to ...

Remote Full Stack Engineer: AI First, Ownership & Impact

A leading HR Tech startup is seeking a Fullstack Product Engineer to join their innovative team. You will collaborate closely with Product Managers, balance your expertise between Java and Angular, and own the security of applications handling global compliance data. Candidates should have at least 3 years of ex ...

Welsh Voice Actor for AI Training — Remote, Freelance

A leading AI technology company is seeking an experienced Welsh Voice Actor to contribute to the development of AI voice models. Your role will involve recording and evaluating speech samples, along with providing feedback on various aspects of voice performance. This contract position offers remote work with a ...

Senior Data Operations Lead — Remote, AI Driven Excellence

A leading SaaS company is seeking a Senior Team Lead for its Data Operations teams in Spain. This role involves managing a remote team of over 50 freelancers, driving operational excellence, and implementing process improvements. The ideal candidate will have over 5 years of leadership experience and expertise i ...

Remote Investment Banking Expert for AI Finance (Contract)

Call For Referral is seeking a Remote Investment Banking Expert to connect elite creative and technical talent with leading AI research labs. This role requires a commitment of 10+ hours per week, where you'll evaluate financial models, ensure industry-standard compliance, and develop benchmarks for AI-genera ...

Remote Software Engineer Annotator for AI Training Data

A leading consulting firm in technology is seeking an experienced Software Engineer Annotator to work remotely. The role involves evaluating, labeling, and improving software engineering datasets used for AI training. The ideal candidate should possess strong programming skills, be experienced in reviewing AI-ge ...

Junior/Mid AI Legal Specialist (Full Remote Spain)

AI Legal Specialist We are looking for a motivated AI Legal Specialist with a passion for tech and AI to join our Compliance Team. In this role, you will own legal and compliance workflows, guided by and working side‑by‑side with our Ethics and Compliance Officer, Maxwelle Sokol. This is an oppor ...

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