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49 Blockchain engineer jobs in Spain
- Senior Backend Engineer (Node.js)
SET EuropaEspañaThis position is ideal for someone who combines strong technical expertise with business acumen and enjoys working as a product-minded engineer, bridging the……30d+ - AI Research Engineer (Pre-training - LLM & Multi-Modal)Tether.toMadridYour mission is to explore and implement novel techniques and algorithms that lead to groundbreaking advancements: multi-modal data curation and alignment,……23d
- Senior Software Engineer, Blockchain (Smart Contracts)1inchTrabajo en remoto1inch products help users and builders trade, hold and track digital assets - with the self-custody, comprehensive security and the intuitive user experience……30d+
- Senior QA Engineer (100% Remote)Tether.toMadridFocused on preventing defects from reaching end users, Senior QA Engineers collaborate closely with development teams to uphold high standards of usability,……30d+
- Machine Learning Systems EngineerTether.toMadridExperience working with LLM and Multi-modal evaluation and benchmarking frameworks and domain‑specific benchmarks with the ability to interpret results and……30d+
- Backend Engineer - Wallets (100% Remote)Tether.toMadridIf you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you.…30d+
- Research Engineer Intern (Multimodal LLM)Tether.toMadridIn our team, you will have the opportunity to participate in the development of the state-of-the-art (SOTA) foundation models, and will also be responsible for……30d+
- Data Platform EngineerBlock LabsEspañaIf you’re one of the smartest minds in your craft and want to build with other experts, you’ll feel at home here. We move fast, but we build for the long term.…30d+
- Application Support Engineer — Blockchain Security & AI Automation
Crypto.comTrabajo en remotoBuilt on a foundation of security, privacy, and compliance, Crypto.com is committed to accelerating the adoption of cryptocurrency through innovation and……30d+ - Machine Learning Engineer Intern (100% Remote Worldwide)Tether.toMadridYou will be instrumental in pushing the boundaries of what’s possible in AI and neuroscience, helping to solve some of the most complex and fascinating……30d+
- AI Inference Engineer QVAC (100% remote Worldwide)Tether.toBarcelonaCollaborate closely with researchers to assist in coding, training and transitioning models from research to production environments.…30d+
- AI Research Engineer (Multi-Modal & Vision) - 100% Remote WorldwideTether.toBarcelonaYour work will span the full model development lifecycle - from data curation and training pipeline design to model evaluation and optimization - with the goal……30d+
- R&D engineer (BlockChain)
Merlín DPBarcelonaUn entorno de trabajo dinámico, con proyectos que combinan IA, gobernanza y tecnología avanzada. Experiencia integrando DLT y blockchain con sistemas de IA y……30d+ - AI Research Engineer (Agentic Post-training) - 100% Remote WorldwideTether.toBarcelonaWe expect you to have deep expertise in large language model architectures and substantial experience in post-training for agentic workflows, including tool use……30d+
- Backend Java Engineer - Kazakhstan/Russian speaker (6 months Contract)
BinanceTrabajo en remotoEngage in and improve the whole lifecycle of service, from inception and design, through to deployment, operation, and refinement. 100% Remote, Work from Home.…30d+ - AI Research Engineer (Multi-Modal Reinforcement Learning) - 100% Remote WorldwideTether.toBarcelonaYou are expected to have deep expertise in designing multi-modal reinforcement learning systems and a strong background in advanced model architectures, with a……30d+
- Head of Engineering (Remote - Work from Anywhere)
Xapo BankTrabajo en remotoAt Xapo, we prioritize consumer protection and adhere to regulatory requirements by ensuring that all Xapiens are accountable for upholding principles of fair……5d - AI Research Engineer (Model Compression & Quantization) - 100% Remote WorldwideTether.toBarcelonaPractical experience in developing and deploying end-to-end inference pipelines, from optimizing models for efficient serving to integrating these solutions on……30d+
- AI Tech Consultant - Madrid | BCG Platinion
Boston Consulting GroupMadridYou will be responsible for specific parts of the project and will evaluate and coach our clients’ technology teams, manage quality and risk while maintaining……26d - Business Intelligence AnalystBlock LabsEspañaSolid statistics and probability fundamentals for experimentation - hypothesis testing, sample size and power, confidence intervals, and the discipline to……30d+
- DevOps Cloud Engineer Junior
ProsegurMadridCrecer profesionalmente atendiendo a un plan carrera personalizado. Formación universitaria en carreras tecnológicas, como Ingeniería Informática,……30d+ - Industry X - Autonomous Robotics Safety Engineer
AccentureMadridParticipar en pruebas, cualificaciones y validaciones in situ. Programa de retribución flexible y compra de acciones. Seguro médico, de vida y de accidentes.…30d+ - Solutions Architect
GFT TechnologiesEspañaAbility to work with minimal supervision in a distributed team environment and set own work direction to achieve team goals.…11d - QA Automation Engineer
NTT DATABarcelonaComunicación en inglés u otros idiomas para participar en proyectos internacionales. Si eres Ingeniero/a de Automatización de Pruebas (Test Engineer) con……30d+ - Software Engineer, Python (Asset Pricing & Hedging)
BitpandaBarcelonaTime to recharge – On top of your standard annual leave, Prioritise your wellbeing with 3 additional days of paid time off to rest, reset, and recharge,……30d+ - Technical Project Manager Tether Wallet - 100% remoteTether.toMadridYour job is to make sure that once a feature is spec'd, it actually gets delivered on time, with every dependency handled, with no stakeholder left waiting on……30d+
- Semantic Software EngineerNTT DATAMadridBuen nivel de inglés con capacidad para interactuar de forma fluida tanto verbal como escrita con equipos y clientes internacionales.…30d+
- Head of Quality Engineering (Remote - Work from Anywhere)Xapo BankTrabajo en remotoAt Xapo, we prioritize consumer protection and adhere to regulatory requirements by ensuring that all Xapiens are accountable for upholding principles of fair……5d
- Senior Technical Product Manager - Wallets (100% Remote)Tether.toBarcelonaYou will set the roadmap, drive every sprint, and be the person every engineer, designer, and stakeholder looks to when a decision needs to be made.…30d+
- DEVOPS ENGINEERApptiva Core TechnologiesMadridYou will use automation to scale systems sustainably and help to make improvements, evolving systems and driving change that improves the reliability, speed and……30d+
SET Europa
Senior Backend Engineer (Node.js)
España